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	Index: head/sys/amd64/amd64/efirt_machdep.c
	===================================================================
	--- head/sys/amd64/amd64/efirt_machdep.c
	+++ head/sys/amd64/amd64/efirt_machdep.c
	@@ -325,5 +325,7 @@
	return (error);
	}

	-SYSCTL_PROC(_debug, OID_AUTO, efi_time, CTLTYPE_INT \| CTLFLAG_RW, NULL, 0,
	- efi_time_sysctl_handler, "I", "");
	+SYSCTL_PROC(_debug, OID_AUTO, efi_time,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL, 0,
	+ efi_time_sysctl_handler, "I",
	+ "");
	Index: head/sys/amd64/amd64/machdep.c
	===================================================================
	--- head/sys/amd64/amd64/machdep.c
	+++ head/sys/amd64/amd64/machdep.c
	@@ -1960,8 +1960,10 @@
	}
	return (error);
	}
	-SYSCTL_PROC(_machdep, OID_AUTO, smap, CTLTYPE_OPAQUE\|CTLFLAG_RD, NULL, 0,
	- smap_sysctl_handler, "S,bios_smap_xattr", "Raw BIOS SMAP data");
	+SYSCTL_PROC(_machdep, OID_AUTO, smap,
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	+ smap_sysctl_handler, "S,bios_smap_xattr",
	+ "Raw BIOS SMAP data");

	static int
	efi_map_sysctl_handler(SYSCTL_HANDLER_ARGS)
	@@ -1980,8 +1982,10 @@
	efisize = ((uint32_t )efihdr - 1);
	return (SYSCTL_OUT(req, efihdr, efisize));
	}
	-SYSCTL_PROC(_machdep, OID_AUTO, efi_map, CTLTYPE_OPAQUE\|CTLFLAG_RD, NULL, 0,
	- efi_map_sysctl_handler, "S,efi_map_header", "Raw EFI Memory Map");
	+SYSCTL_PROC(_machdep, OID_AUTO, efi_map,
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	+ efi_map_sysctl_handler, "S,efi_map_header",
	+ "Raw EFI Memory Map");

	void
	spinlock_enter(void)
	Index: head/sys/amd64/amd64/pmap.c
	===================================================================
	--- head/sys/amd64/amd64/pmap.c
	+++ head/sys/amd64/amd64/pmap.c
	@@ -390,7 +390,8 @@
	vm_offset_t kernel_vm_end = VM_MIN_KERNEL_ADDRESS;
	pt_entry_t pg_nx;

	-static SYSCTL_NODE(_vm, OID_AUTO, pmap, CTLFLAG_RD, 0, "VM/pmap parameters");
	+static SYSCTL_NODE(_vm, OID_AUTO, pmap, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "VM/pmap parameters");

	static int pg_ps_enabled = 1;
	SYSCTL_INT(_vm_pmap, OID_AUTO, pg_ps_enabled, CTLFLAG_RDTUN \| CTLFLAG_NOFETCH,
	@@ -2196,7 +2197,7 @@
	"Maximum number of PML4 entries for use by large map (tunable). "
	"Each entry corresponds to 512GB of address space.");

	-static SYSCTL_NODE(_vm_pmap, OID_AUTO, pde, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_vm_pmap, OID_AUTO, pde, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"2MB page mapping counters");

	static u_long pmap_pde_demotions;
	@@ -2215,7 +2216,7 @@
	SYSCTL_ULONG(_vm_pmap_pde, OID_AUTO, promotions, CTLFLAG_RD,
	&pmap_pde_promotions, 0, "2MB page promotions");

	-static SYSCTL_NODE(_vm_pmap, OID_AUTO, pdpe, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_vm_pmap, OID_AUTO, pdpe, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"1GB page mapping counters");

	static u_long pmap_pdpe_demotions;
	Index: head/sys/amd64/amd64/prof_machdep.c
	===================================================================
	--- head/sys/amd64/amd64/prof_machdep.c
	+++ head/sys/amd64/amd64/prof_machdep.c
	@@ -262,8 +262,10 @@
	return (error);
	}

	-SYSCTL_PROC(_machdep, OID_AUTO, cputime_clock, CTLTYPE_INT \| CTLFLAG_RW,
	- 0, sizeof(u_int), sysctl_machdep_cputime_clock, "I", "");
	+SYSCTL_PROC(_machdep, OID_AUTO, cputime_clock,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, sizeof(u_int),
	+ sysctl_machdep_cputime_clock, "I",
	+ "");

	/*
	* The start and stop routines need not be here since we turn off profiling
	Index: head/sys/amd64/linux32/linux32_sysvec.c
	===================================================================
	--- head/sys/amd64/linux32/linux32_sysvec.c
	+++ head/sys/amd64/linux32/linux32_sysvec.c
	@@ -837,7 +837,7 @@
	return (0);
	}

	-static SYSCTL_NODE(_compat, OID_AUTO, linux32, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_compat, OID_AUTO, linux32, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"32-bit Linux emulation");

	static u_long linux32_maxdsiz = LINUX32_MAXDSIZ;
	Index: head/sys/arm/altera/socfpga/socfpga_rstmgr.c
	===================================================================
	--- head/sys/arm/altera/socfpga/socfpga_rstmgr.c
	+++ head/sys/arm/altera/socfpga/socfpga_rstmgr.c
	@@ -190,13 +190,16 @@
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev));

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "fpga2hps",
	- CTLTYPE_UINT \| CTLFLAG_RW, sc, RSTMGR_SYSCTL_FPGA2HPS,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ sc, RSTMGR_SYSCTL_FPGA2HPS,
	rstmgr_sysctl, "I", "Enable fpga2hps bridge");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "lwhps2fpga",
	- CTLTYPE_UINT \| CTLFLAG_RW, sc, RSTMGR_SYSCTL_LWHPS2FPGA,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ sc, RSTMGR_SYSCTL_LWHPS2FPGA,
	rstmgr_sysctl, "I", "Enable lwhps2fpga bridge");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "hps2fpga",
	- CTLTYPE_UINT \| CTLFLAG_RW, sc, RSTMGR_SYSCTL_HPS2FPGA,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ sc, RSTMGR_SYSCTL_HPS2FPGA,
	rstmgr_sysctl, "I", "Enable hps2fpga bridge");

	return (0);
	Index: head/sys/arm/arm/busdma_machdep.c
	===================================================================
	--- head/sys/arm/arm/busdma_machdep.c
	+++ head/sys/arm/arm/busdma_machdep.c
	@@ -148,7 +148,8 @@

	static STAILQ_HEAD(, bounce_zone) bounce_zone_list;

	-SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD, 0, "Busdma parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Busdma parameters");
	SYSCTL_UINT(_hw_busdma, OID_AUTO, tags_total, CTLFLAG_RD, &tags_total, 0,
	"Number of active tags");
	SYSCTL_UINT(_hw_busdma, OID_AUTO, maps_total, CTLFLAG_RD, &maps_total, 0,
	@@ -1591,7 +1592,7 @@
	sysctl_ctx_init(&bz->sysctl_tree);
	bz->sysctl_tree_top = SYSCTL_ADD_NODE(&bz->sysctl_tree,
	SYSCTL_STATIC_CHILDREN(_hw_busdma), OID_AUTO, bz->zoneid,
	- CTLFLAG_RD, 0, "");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");
	if (bz->sysctl_tree_top == NULL) {
	sysctl_ctx_free(&bz->sysctl_tree);
	return (0); /* XXX error code? */
	Index: head/sys/arm/arm/cpuinfo.c
	===================================================================
	--- head/sys/arm/arm/cpuinfo.c
	+++ head/sys/arm/arm/cpuinfo.c
	@@ -56,9 +56,9 @@
	.icache_line_mask = 31,
	};

	-static SYSCTL_NODE(_hw, OID_AUTO, cpu, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_hw, OID_AUTO, cpu, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"CPU");
	-static SYSCTL_NODE(_hw_cpu, OID_AUTO, quirks, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_hw_cpu, OID_AUTO, quirks, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"CPU quirks");

	/*
	Index: head/sys/arm/arm/machdep_boot.c
	===================================================================
	--- head/sys/arm/arm/machdep_boot.c
	+++ head/sys/arm/arm/machdep_boot.c
	@@ -88,7 +88,8 @@
	static char atags[LBABI_MAX_COMMAND_LINE * 2];
	#endif /* defined(LINUX_BOOT_ABI) */

	-SYSCTL_NODE(_hw, OID_AUTO, board, CTLFLAG_RD, 0, "Board attributes");
	+SYSCTL_NODE(_hw, OID_AUTO, board, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Board attributes");
	SYSCTL_UINT(_hw_board, OID_AUTO, revision, CTLFLAG_RD,
	&board_revision, 0, "Board revision");
	SYSCTL_STRING(_hw_board, OID_AUTO, serial, CTLFLAG_RD,
	Index: head/sys/arm/arm/pmap-v6.c
	===================================================================
	--- head/sys/arm/arm/pmap-v6.c
	+++ head/sys/arm/arm/pmap-v6.c
	@@ -1550,7 +1550,8 @@
	*
	*****************************************************************************/

	-SYSCTL_NODE(_vm, OID_AUTO, pmap, CTLFLAG_RD, 0, "VM/pmap parameters");
	+SYSCTL_NODE(_vm, OID_AUTO, pmap, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "VM/pmap parameters");

	SYSCTL_INT(_vm_pmap, OID_AUTO, pv_entry_max, CTLFLAG_RD, &pv_entry_max, 0,
	"Max number of PV entries");
	@@ -1572,7 +1573,7 @@
	return (sp_enabled != 0);
	}

	-static SYSCTL_NODE(_vm_pmap, OID_AUTO, pte1, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_vm_pmap, OID_AUTO, pte1, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"1MB page mapping counters");

	static u_long pmap_pte1_demotions;
	@@ -2108,8 +2109,9 @@

	return (sysctl_handle_long(oidp, &ksize, 0, req));
	}
	-SYSCTL_PROC(_vm, OID_AUTO, kvm_size, CTLTYPE_LONG\|CTLFLAG_RD,
	- 0, 0, kvm_size, "IU", "Size of KVM");
	+SYSCTL_PROC(_vm, OID_AUTO, kvm_size,
	+ CTLTYPE_LONG \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, 0, 0, kvm_size, "IU",
	+ "Size of KVM");

	static int
	kvm_free(SYSCTL_HANDLER_ARGS)
	@@ -2118,8 +2120,9 @@

	return (sysctl_handle_long(oidp, &kfree, 0, req));
	}
	-SYSCTL_PROC(_vm, OID_AUTO, kvm_free, CTLTYPE_LONG\|CTLFLAG_RD,
	- 0, 0, kvm_free, "IU", "Amount of KVM free");
	+SYSCTL_PROC(_vm, OID_AUTO, kvm_free,
	+ CTLTYPE_LONG \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, 0, 0, kvm_free, "IU",
	+ "Amount of KVM free");

	/***********************************************
	*
	Index: head/sys/arm/broadcom/bcm2835/bcm2835_audio.c
	===================================================================
	--- head/sys/arm/broadcom/bcm2835/bcm2835_audio.c
	+++ head/sys/arm/broadcom/bcm2835/bcm2835_audio.c
	@@ -810,7 +810,7 @@
	tree_node = device_get_sysctl_tree(sc->dev);
	tree = SYSCTL_CHILDREN(tree_node);
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "dest",
	- CTLFLAG_RW \| CTLTYPE_UINT, sc, sizeof(*sc),
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, sizeof(*sc),
	sysctl_bcm2835_audio_dest, "IU", "audio destination, "
	"0 - auto, 1 - headphones, 2 - HDMI");
	SYSCTL_ADD_UQUAD(ctx, tree, OID_AUTO, "callbacks",
	Index: head/sys/arm/broadcom/bcm2835/bcm2835_bsc.c
	===================================================================
	--- head/sys/arm/broadcom/bcm2835/bcm2835_bsc.c
	+++ head/sys/arm/broadcom/bcm2835/bcm2835_bsc.c
	@@ -248,16 +248,20 @@
	tree_node = device_get_sysctl_tree(sc->sc_dev);
	tree = SYSCTL_CHILDREN(tree_node);
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "frequency",
	- CTLFLAG_RW \| CTLTYPE_UINT, sc, sizeof(*sc),
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT,
	+ sc, sizeof(*sc),
	bcm_bsc_clock_proc, "IU", "I2C BUS clock frequency");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "clock_stretch",
	- CTLFLAG_RW \| CTLTYPE_UINT, sc, sizeof(*sc),
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT,
	+ sc, sizeof(*sc),
	bcm_bsc_clkt_proc, "IU", "I2C BUS clock stretch timeout");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "fall_edge_delay",
	- CTLFLAG_RW \| CTLTYPE_UINT, sc, sizeof(*sc),
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT,
	+ sc, sizeof(*sc),
	bcm_bsc_fall_proc, "IU", "I2C BUS falling edge delay");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "rise_edge_delay",
	- CTLFLAG_RW \| CTLTYPE_UINT, sc, sizeof(*sc),
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT,
	+ sc, sizeof(*sc),
	bcm_bsc_rise_proc, "IU", "I2C BUS rising edge delay");
	SYSCTL_ADD_INT(ctx, tree, OID_AUTO, "debug",
	CTLFLAG_RWTUN, &sc->sc_debug, 0,
	Index: head/sys/arm/broadcom/bcm2835/bcm2835_cpufreq.c
	===================================================================
	--- head/sys/arm/broadcom/bcm2835/bcm2835_cpufreq.c
	+++ head/sys/arm/broadcom/bcm2835/bcm2835_cpufreq.c
	@@ -1245,7 +1245,8 @@
	ctx = device_get_sysctl_ctx(cpu);
	SYSCTL_ADD_PROC(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(cpu)), OID_AUTO,
	- "temperature", CTLTYPE_INT \| CTLFLAG_RD, sc, 0,
	+ "temperature",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_bcm2835_devcpu_temperature, "IK",
	"Current SoC temperature");
	}
	@@ -1312,57 +1313,67 @@
	/* create node for hw.cpufreq */
	oid = SYSCTL_ADD_NODE(&bcm2835_sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO, "cpufreq",
	- CTLFLAG_RD, NULL, "");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");

	/* Frequency (Hz) */
	SYSCTL_ADD_PROC(&bcm2835_sysctl_ctx, SYSCTL_CHILDREN(oid),
	- OID_AUTO, "arm_freq", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ OID_AUTO, "arm_freq",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_bcm2835_cpufreq_arm_freq, "IU",
	"ARM frequency (Hz)");
	SYSCTL_ADD_PROC(&bcm2835_sysctl_ctx, SYSCTL_CHILDREN(oid),
	- OID_AUTO, "core_freq", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ OID_AUTO, "core_freq",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_bcm2835_cpufreq_core_freq, "IU",
	"Core frequency (Hz)");
	SYSCTL_ADD_PROC(&bcm2835_sysctl_ctx, SYSCTL_CHILDREN(oid),
	- OID_AUTO, "sdram_freq", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ OID_AUTO, "sdram_freq",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_bcm2835_cpufreq_sdram_freq, "IU",
	"SDRAM frequency (Hz)");

	/* Turbo state */
	SYSCTL_ADD_PROC(&bcm2835_sysctl_ctx, SYSCTL_CHILDREN(oid),
	- OID_AUTO, "turbo", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ OID_AUTO, "turbo",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_bcm2835_cpufreq_turbo, "IU",
	"Disables dynamic clocking");

	/* Voltage (offset from 1.2V in units of 0.025V) */
	SYSCTL_ADD_PROC(&bcm2835_sysctl_ctx, SYSCTL_CHILDREN(oid),
	- OID_AUTO, "voltage_core", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ OID_AUTO, "voltage_core",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_bcm2835_cpufreq_voltage_core, "I",
	"ARM/GPU core voltage"
	"(offset from 1.2V in units of 0.025V)");
	SYSCTL_ADD_PROC(&bcm2835_sysctl_ctx, SYSCTL_CHILDREN(oid),
	- OID_AUTO, "voltage_sdram", CTLTYPE_INT \| CTLFLAG_WR, sc,
	+ OID_AUTO, "voltage_sdram",
	+ CTLTYPE_INT \| CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sc,
	0, sysctl_bcm2835_cpufreq_voltage_sdram, "I",
	"SDRAM voltage (offset from 1.2V in units of 0.025V)");

	/* Voltage individual SDRAM */
	SYSCTL_ADD_PROC(&bcm2835_sysctl_ctx, SYSCTL_CHILDREN(oid),
	- OID_AUTO, "voltage_sdram_c", CTLTYPE_INT \| CTLFLAG_RW, sc,
	+ OID_AUTO, "voltage_sdram_c",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc,
	0, sysctl_bcm2835_cpufreq_voltage_sdram_c, "I",
	"SDRAM controller voltage"
	"(offset from 1.2V in units of 0.025V)");
	SYSCTL_ADD_PROC(&bcm2835_sysctl_ctx, SYSCTL_CHILDREN(oid),
	- OID_AUTO, "voltage_sdram_i", CTLTYPE_INT \| CTLFLAG_RW, sc,
	+ OID_AUTO, "voltage_sdram_i",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc,
	0, sysctl_bcm2835_cpufreq_voltage_sdram_i, "I",
	"SDRAM I/O voltage (offset from 1.2V in units of 0.025V)");
	SYSCTL_ADD_PROC(&bcm2835_sysctl_ctx, SYSCTL_CHILDREN(oid),
	- OID_AUTO, "voltage_sdram_p", CTLTYPE_INT \| CTLFLAG_RW, sc,
	+ OID_AUTO, "voltage_sdram_p",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc,
	0, sysctl_bcm2835_cpufreq_voltage_sdram_p, "I",
	"SDRAM phy voltage (offset from 1.2V in units of 0.025V)");

	/* Temperature */
	SYSCTL_ADD_PROC(&bcm2835_sysctl_ctx, SYSCTL_CHILDREN(oid),
	- OID_AUTO, "temperature", CTLTYPE_INT \| CTLFLAG_RD, sc, 0,
	+ OID_AUTO, "temperature",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_bcm2835_cpufreq_temperature, "I",
	"SoC temperature (thousandths of a degree C)");
	}
	Index: head/sys/arm/broadcom/bcm2835/bcm2835_fbd.c
	===================================================================
	--- head/sys/arm/broadcom/bcm2835/bcm2835_fbd.c
	+++ head/sys/arm/broadcom/bcm2835/bcm2835_fbd.c
	@@ -199,7 +199,7 @@
	tree_node = device_get_sysctl_tree(sc->dev);
	tree = SYSCTL_CHILDREN(tree_node);
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "resync",
	- CTLFLAG_RW \| CTLTYPE_UINT, sc, sizeof(*sc),
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, sizeof(*sc),
	bcm_fb_resync_sysctl, "IU", "Set to resync framebuffer with VC");
	}

	Index: head/sys/arm/broadcom/bcm2835/bcm2835_gpio.c
	===================================================================
	--- head/sys/arm/broadcom/bcm2835/bcm2835_gpio.c
	+++ head/sys/arm/broadcom/bcm2835/bcm2835_gpio.c
	@@ -594,14 +594,14 @@
	tree_node = device_get_sysctl_tree(sc->sc_dev);
	tree = SYSCTL_CHILDREN(tree_node);
	pin_node = SYSCTL_ADD_NODE(ctx, tree, OID_AUTO, "pin",
	- CTLFLAG_RD, NULL, "GPIO Pins");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "GPIO Pins");
	pin_tree = SYSCTL_CHILDREN(pin_node);

	for (i = 0; i < sc->sc_gpio_npins; i++) {

	snprintf(pinbuf, sizeof(pinbuf), "%d", i);
	pinN_node = SYSCTL_ADD_NODE(ctx, pin_tree, OID_AUTO, pinbuf,
	- CTLFLAG_RD, NULL, "GPIO Pin");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "GPIO Pin");
	pinN_tree = SYSCTL_CHILDREN(pinN_node);

	sc->sc_sysctl[i].sc = sc;
	@@ -609,7 +609,7 @@
	sc_sysctl->sc = sc;
	sc_sysctl->pin = sc->sc_gpio_pins[i].gp_pin;
	SYSCTL_ADD_PROC(ctx, pinN_tree, OID_AUTO, "function",
	- CTLFLAG_RW \| CTLTYPE_STRING, sc_sysctl,
	+ CTLFLAG_RW \| CTLTYPE_STRING \| CTLFLAG_NEEDGIANT, sc_sysctl,
	sizeof(struct bcm_gpio_sysctl), bcm_gpio_func_proc,
	"A", "Pin Function");
	}
	Index: head/sys/arm/broadcom/bcm2835/bcm2835_pwm.c
	===================================================================
	--- head/sys/arm/broadcom/bcm2835/bcm2835_pwm.c
	+++ head/sys/arm/broadcom/bcm2835/bcm2835_pwm.c
	@@ -364,7 +364,8 @@
	if (bootverbose) {
	#define RR(x,y) \
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, y, \
	- CTLFLAG_RW \| CTLTYPE_UINT, sc, 0x##x, \
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, \
	+ sc, 0x##x, \
	bcm_pwm_reg_proc, "IU", "Register 0x" #x " " y);

	RR(24, "DAT2")
	@@ -379,31 +380,31 @@
	}

	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "pwm_freq",
	- CTLFLAG_RD \| CTLTYPE_UINT, sc, 0,
	+ CTLFLAG_RD \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, 0,
	bcm_pwm_pwm_freq_proc, "IU", "PWM frequency ch 1 (Hz)");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "period",
	- CTLFLAG_RW \| CTLTYPE_UINT, sc, 0,
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, 0,
	bcm_pwm_period_proc, "IU", "PWM period ch 1 (#clocks)");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "ratio",
	- CTLFLAG_RW \| CTLTYPE_UINT, sc, 0,
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, 0,
	bcm_pwm_ratio_proc, "IU", "PWM ratio ch 1 (0...period)");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "freq",
	- CTLFLAG_RW \| CTLTYPE_UINT, sc, 0,
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, 0,
	bcm_pwm_freq_proc, "IU", "PWM clock (Hz)");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "mode",
	- CTLFLAG_RW \| CTLTYPE_UINT, sc, 0,
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, 0,
	bcm_pwm_mode_proc, "IU", "PWM mode ch 1 (0=off, 1=pwm, 2=dither)");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "pwm_freq2",
	- CTLFLAG_RD \| CTLTYPE_UINT, sc, 0,
	+ CTLFLAG_RD \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, 0,
	bcm_pwm_pwm_freq2_proc, "IU", "PWM frequency ch 2 (Hz)");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "period2",
	- CTLFLAG_RW \| CTLTYPE_UINT, sc, 0,
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, 0,
	bcm_pwm_period2_proc, "IU", "PWM period ch 2 (#clocks)");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "ratio2",
	- CTLFLAG_RW \| CTLTYPE_UINT, sc, 0,
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, 0,
	bcm_pwm_ratio2_proc, "IU", "PWM ratio ch 2 (0...period)");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "mode2",
	- CTLFLAG_RW \| CTLTYPE_UINT, sc, 0,
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, 0,
	bcm_pwm_mode2_proc, "IU", "PWM mode ch 2 (0=off, 1=pwm, 2=dither)");
	}

	Index: head/sys/arm/broadcom/bcm2835/bcm2835_rng.c
	===================================================================
	--- head/sys/arm/broadcom/bcm2835/bcm2835_rng.c
	+++ head/sys/arm/broadcom/bcm2835/bcm2835_rng.c
	@@ -403,14 +403,14 @@
	"underrun", CTLFLAG_RD, &sc->sc_underrun,
	"Number of FIFO underruns");
	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "2xspeed", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ "2xspeed", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_bcm2835_rng_2xspeed, "I", "Enable RBG 2X SPEED");
	SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	"stall_count", CTLFLAG_RW, &sc->sc_stall_count,
	RNG_STALL_COUNT_DEFAULT, "Number of underruns to assume RNG stall");
	#ifdef BCM2835_RNG_DEBUG_REGISTERS
	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "dumpregs", CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ "dumpregs", CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_bcm2835_rng_dump, "S", "Dump RNG registers");
	#endif

	Index: head/sys/arm/broadcom/bcm2835/bcm2835_spi.c
	===================================================================
	--- head/sys/arm/broadcom/bcm2835/bcm2835_spi.c
	+++ head/sys/arm/broadcom/bcm2835/bcm2835_spi.c
	@@ -204,22 +204,22 @@
	tree_node = device_get_sysctl_tree(sc->sc_dev);
	tree = SYSCTL_CHILDREN(tree_node);
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "clock",
	- CTLFLAG_RD \| CTLTYPE_UINT, sc, sizeof(*sc),
	+ CTLFLAG_RD \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, sizeof(*sc),
	bcm_spi_clock_proc, "IU", "SPI BUS clock frequency");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "cpol",
	- CTLFLAG_RD \| CTLTYPE_UINT, sc, sizeof(*sc),
	+ CTLFLAG_RD \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, sizeof(*sc),
	bcm_spi_cpol_proc, "IU", "SPI BUS clock polarity");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "cpha",
	- CTLFLAG_RD \| CTLTYPE_UINT, sc, sizeof(*sc),
	+ CTLFLAG_RD \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, sizeof(*sc),
	bcm_spi_cpha_proc, "IU", "SPI BUS clock phase");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "cspol0",
	- CTLFLAG_RD \| CTLTYPE_UINT, sc, sizeof(*sc),
	+ CTLFLAG_RD \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, sizeof(*sc),
	bcm_spi_cspol0_proc, "IU", "SPI BUS chip select 0 polarity");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "cspol1",
	- CTLFLAG_RD \| CTLTYPE_UINT, sc, sizeof(*sc),
	+ CTLFLAG_RD \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, sizeof(*sc),
	bcm_spi_cspol1_proc, "IU", "SPI BUS chip select 1 polarity");
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "cspol2",
	- CTLFLAG_RD \| CTLTYPE_UINT, sc, sizeof(*sc),
	+ CTLFLAG_RD \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, sizeof(*sc),
	bcm_spi_cspol2_proc, "IU", "SPI BUS chip select 2 polarity");
	}

	Index: head/sys/arm/freescale/imx/imx6_anatop.c
	===================================================================
	--- head/sys/arm/freescale/imx/imx6_anatop.c
	+++ head/sys/arm/freescale/imx/imx6_anatop.c
	@@ -400,11 +400,13 @@
	"CPU frequency");

	SYSCTL_ADD_PROC(NULL, SYSCTL_STATIC_CHILDREN(_hw_imx),
	- OID_AUTO, "cpu_minmhz", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NOFETCH,
	+ OID_AUTO, "cpu_minmhz",
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NOFETCH \| CTLFLAG_NEEDGIANT,
	sc, 0, cpufreq_sysctl_minmhz, "IU", "Minimum CPU frequency");

	SYSCTL_ADD_PROC(NULL, SYSCTL_STATIC_CHILDREN(_hw_imx),
	- OID_AUTO, "cpu_maxmhz", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NOFETCH,
	+ OID_AUTO, "cpu_maxmhz",
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NOFETCH \| CTLFLAG_NEEDGIANT,
	sc, 0, cpufreq_sysctl_maxmhz, "IU", "Maximum CPU frequency");

	SYSCTL_ADD_INT(NULL, SYSCTL_STATIC_CHILDREN(_hw_imx),
	@@ -627,10 +629,12 @@
	0, tempmon_throttle_check, sc, 0);

	SYSCTL_ADD_PROC(NULL, SYSCTL_STATIC_CHILDREN(_hw_imx),
	- OID_AUTO, "temperature", CTLTYPE_INT \| CTLFLAG_RD, sc, 0,
	+ OID_AUTO, "temperature",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	temp_sysctl_handler, "IK", "Current die temperature");
	SYSCTL_ADD_PROC(NULL, SYSCTL_STATIC_CHILDREN(_hw_imx),
	- OID_AUTO, "throttle_temperature", CTLTYPE_INT \| CTLFLAG_RW, sc,
	+ OID_AUTO, "throttle_temperature",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc,
	0, temp_throttle_sysctl_handler, "IK",
	"Throttle CPU when exceeding this temperature");
	}
	Index: head/sys/arm/freescale/imx/imx_machdep.c
	===================================================================
	--- head/sys/arm/freescale/imx/imx_machdep.c
	+++ head/sys/arm/freescale/imx/imx_machdep.c
	@@ -47,7 +47,8 @@
	#include <arm/freescale/imx/imx_machdep.h>
	#include <arm/freescale/imx/imx_wdogreg.h>

	-SYSCTL_NODE(_hw, OID_AUTO, imx, CTLFLAG_RW, NULL, "i.MX container");
	+SYSCTL_NODE(_hw, OID_AUTO, imx, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ "i.MX container");

	static int last_reset_status;
	SYSCTL_UINT(_hw_imx, OID_AUTO, last_reset_status, CTLFLAG_RD,
	Index: head/sys/arm/mv/mv_thermal.c
	===================================================================
	--- head/sys/arm/mv/mv_thermal.c
	+++ head/sys/arm/mv/mv_thermal.c
	@@ -333,7 +333,7 @@
	oid = SYSCTL_CHILDREN(device_get_sysctl_tree(dev));
	/* There is always at least one sensor */
	SYSCTL_ADD_PROC(ctx, oid, OID_AUTO, "internal",
	- CTLTYPE_INT \| CTLFLAG_RD,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, 0, mv_thermal_sysctl,
	"IK",
	"Internal Temperature");
	@@ -342,7 +342,7 @@
	snprintf(name, sizeof(name), "cpu%d", i);
	snprintf(desc, sizeof(desc), "CPU%d Temperature", i);
	SYSCTL_ADD_PROC(ctx, oid, OID_AUTO, name,
	- CTLTYPE_INT \| CTLFLAG_RD,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, i + 1, mv_thermal_sysctl,
	"IK",
	desc);
	Index: head/sys/arm/mv/mv_ts.c
	===================================================================
	--- head/sys/arm/mv/mv_ts.c
	+++ head/sys/arm/mv/mv_ts.c
	@@ -150,7 +150,8 @@
	}
	ctx = device_get_sysctl_ctx(dev);
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "temperature", CTLTYPE_INT \| CTLFLAG_RD, dev,
	+ OID_AUTO, "temperature",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, dev,
	0, ts_sysctl_handler, "IK", "Current Temperature");

	return (0);
	Index: head/sys/arm/nvidia/tegra124/tegra124_coretemp.c
	===================================================================
	--- head/sys/arm/nvidia/tegra124/tegra124_coretemp.c
	+++ head/sys/arm/nvidia/tegra124/tegra124_coretemp.c
	@@ -220,7 +220,8 @@

	oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(pdev)), OID_AUTO,
	- "coretemp", CTLFLAG_RD, NULL, "Per-CPU thermal information");
	+ "coretemp", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "Per-CPU thermal information");

	/*
	* Add the MIBs to dev.cpu.N and dev.cpu.N.coretemp.
	Index: head/sys/arm/nvidia/tegra_soctherm.c
	===================================================================
	--- head/sys/arm/nvidia/tegra_soctherm.c
	+++ head/sys/arm/nvidia/tegra_soctherm.c
	@@ -511,7 +511,7 @@
	/* create node for hw.temp */
	oid = SYSCTL_ADD_NODE(&soctherm_sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO, "temperature",
	- CTLFLAG_RD, NULL, "");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	if (oid == NULL)
	return (ENXIO);

	@@ -519,7 +519,7 @@
	for (i = sc->ntsensors - 1; i >= 0; i--) {
	tmp = SYSCTL_ADD_PROC(&soctherm_sysctl_ctx,
	SYSCTL_CHILDREN(oid), OID_AUTO, sc->tsensors[i].name,
	- CTLTYPE_INT \| CTLFLAG_RD, sc, i,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, i,
	soctherm_sysctl_temperature, "IK", "SoC Temperature");
	if (tmp == NULL)
	return (ENXIO);
	Index: head/sys/arm/ti/am335x/am335x_ehrpwm.c
	===================================================================
	--- head/sys/arm/ti/am335x/am335x_ehrpwm.c
	+++ head/sys/arm/ti/am335x/am335x_ehrpwm.c
	@@ -589,23 +589,23 @@
	tree = device_get_sysctl_tree(sc->sc_dev);

	sc->sc_clkdiv_oid = SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "clkdiv", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ "clkdiv", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	am335x_ehrpwm_sysctl_clkdiv, "I", "PWM clock prescaler");

	sc->sc_freq_oid = SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "freq", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ "freq", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	am335x_ehrpwm_sysctl_freq, "I", "PWM frequency");

	sc->sc_period_oid = SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "period", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ "period", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	am335x_ehrpwm_sysctl_period, "I", "PWM period");

	sc->sc_chanA_oid = SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "dutyA", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ "dutyA", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	am335x_ehrpwm_sysctl_duty, "I", "Channel A duty cycles");

	sc->sc_chanB_oid = SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "dutyB", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ "dutyB", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	am335x_ehrpwm_sysctl_duty, "I", "Channel B duty cycles");

	/* CONFIGURE EPWM1 */
	Index: head/sys/arm/ti/am335x/am335x_lcd.c
	===================================================================
	--- head/sys/arm/ti/am335x/am335x_lcd.c
	+++ head/sys/arm/ti/am335x/am335x_lcd.c
	@@ -1025,7 +1025,7 @@
	ctx = device_get_sysctl_ctx(sc->sc_dev);
	tree = device_get_sysctl_tree(sc->sc_dev);
	sc->sc_oid = SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "backlight", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ "backlight", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	am335x_lcd_sysctl_backlight, "I", "LCD backlight");
	sc->sc_backlight = 0;
	/* Check if eCAS interface is available at this point */
	Index: head/sys/arm/ti/am335x/am335x_musb.c
	===================================================================
	--- head/sys/arm/ti/am335x/am335x_musb.c
	+++ head/sys/arm/ti/am335x/am335x_musb.c
	@@ -115,7 +115,9 @@
	#ifdef USB_DEBUG
	static int usbssdebug = 0;

	-static SYSCTL_NODE(_hw_usb, OID_AUTO, am335x_usbss, CTLFLAG_RW, 0, "AM335x USBSS");
	+static SYSCTL_NODE(_hw_usb, OID_AUTO, am335x_usbss,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "AM335x USBSS");
	SYSCTL_INT(_hw_usb_am335x_usbss, OID_AUTO, debug, CTLFLAG_RW,
	&usbssdebug, 0, "Debug level");
	#endif
	Index: head/sys/arm/ti/cpsw/if_cpsw.c
	===================================================================
	--- head/sys/arm/ti/cpsw/if_cpsw.c
	+++ head/sys/arm/ti/cpsw/if_cpsw.c
	@@ -2725,15 +2725,17 @@
	CTLFLAG_RW, &sc->debug, 0, "Enable switch debug messages");

	SYSCTL_ADD_PROC(ctx, parent, OID_AUTO, "attachedSecs",
	- CTLTYPE_UINT \| CTLFLAG_RD, sc, 0, cpsw_stat_attached, "IU",
	+ CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ sc, 0, cpsw_stat_attached, "IU",
	"Time since driver attach");

	SYSCTL_ADD_PROC(ctx, parent, OID_AUTO, "intr_coalesce_us",
	- CTLTYPE_UINT \| CTLFLAG_RW, sc, 0, cpsw_intr_coalesce, "IU",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ sc, 0, cpsw_intr_coalesce, "IU",
	"minimum time between interrupts");

	node = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "ports",
	- CTLFLAG_RD, NULL, "CPSW Ports Statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "CPSW Ports Statistics");
	ports_parent = SYSCTL_CHILDREN(node);
	for (i = 0; i < CPSW_PORTS; i++) {
	if (!sc->dualemac && i != sc->active_slave)
	@@ -2741,38 +2743,39 @@
	port[0] = '0' + i;
	port[1] = '\0';
	node = SYSCTL_ADD_NODE(ctx, ports_parent, OID_AUTO,
	- port, CTLFLAG_RD, NULL, "CPSW Port Statistics");
	+ port, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "CPSW Port Statistics");
	port_parent = SYSCTL_CHILDREN(node);
	SYSCTL_ADD_PROC(ctx, port_parent, OID_AUTO, "uptime",
	- CTLTYPE_UINT \| CTLFLAG_RD, sc, i,
	+ CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, i,
	cpsw_stat_uptime, "IU", "Seconds since driver init");
	}

	stats_node = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "stats",
	- CTLFLAG_RD, NULL, "CPSW Statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "CPSW Statistics");
	stats_parent = SYSCTL_CHILDREN(stats_node);
	for (i = 0; i < CPSW_SYSCTL_COUNT; ++i) {
	SYSCTL_ADD_PROC(ctx, stats_parent, i,
	cpsw_stat_sysctls[i].oid,
	- CTLTYPE_U64 \| CTLFLAG_RD, sc, 0,
	- cpsw_stats_sysctl, "IU",
	+ CTLTYPE_U64 \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ sc, 0, cpsw_stats_sysctl, "IU",
	cpsw_stat_sysctls[i].oid);
	}

	queue_node = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "queue",
	- CTLFLAG_RD, NULL, "CPSW Queue Statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "CPSW Queue Statistics");
	queue_parent = SYSCTL_CHILDREN(queue_node);

	node = SYSCTL_ADD_NODE(ctx, queue_parent, OID_AUTO, "tx",
	- CTLFLAG_RD, NULL, "TX Queue Statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "TX Queue Statistics");
	cpsw_add_queue_sysctls(ctx, node, &sc->tx);

	node = SYSCTL_ADD_NODE(ctx, queue_parent, OID_AUTO, "rx",
	- CTLFLAG_RD, NULL, "RX Queue Statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "RX Queue Statistics");
	cpsw_add_queue_sysctls(ctx, node, &sc->rx);

	node = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "watchdog",
	- CTLFLAG_RD, NULL, "Watchdog Statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Watchdog Statistics");
	cpsw_add_watchdog_sysctls(ctx, node, sc);
	}

	Index: head/sys/arm/ti/ti_adc.c
	===================================================================
	--- head/sys/arm/ti/ti_adc.c
	+++ head/sys/arm/ti/ti_adc.c
	@@ -562,10 +562,10 @@
	tree_node = device_get_sysctl_tree(sc->sc_dev);
	tree = SYSCTL_CHILDREN(tree_node);
	SYSCTL_ADD_PROC(ctx, tree, OID_AUTO, "clockdiv",
	- CTLFLAG_RW \| CTLTYPE_UINT, sc, 0,
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, sc, 0,
	ti_adc_clockdiv_proc, "IU", "ADC clock prescaler");
	inp_node = SYSCTL_ADD_NODE(ctx, tree, OID_AUTO, "ain",
	- CTLFLAG_RD, NULL, "ADC inputs");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "ADC inputs");
	inp_tree = SYSCTL_CHILDREN(inp_node);

	for (i = 0; i < sc->sc_adc_nchannels; i++) {
	@@ -573,17 +573,20 @@

	snprintf(pinbuf, sizeof(pinbuf), "%d", ain);
	inpN_node = SYSCTL_ADD_NODE(ctx, inp_tree, OID_AUTO, pinbuf,
	- CTLFLAG_RD, NULL, "ADC input");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "ADC input");
	inpN_tree = SYSCTL_CHILDREN(inpN_node);

	SYSCTL_ADD_PROC(ctx, inpN_tree, OID_AUTO, "enable",
	- CTLFLAG_RW \| CTLTYPE_UINT, &ti_adc_inputs[ain], 0,
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT,
	+ &ti_adc_inputs[ain], 0,
	ti_adc_enable_proc, "IU", "Enable ADC input");
	SYSCTL_ADD_PROC(ctx, inpN_tree, OID_AUTO, "open_delay",
	- CTLFLAG_RW \| CTLTYPE_UINT, &ti_adc_inputs[ain], 0,
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT,
	+ &ti_adc_inputs[ain], 0,
	ti_adc_open_delay_proc, "IU", "ADC open delay");
	SYSCTL_ADD_PROC(ctx, inpN_tree, OID_AUTO, "samples_avg",
	- CTLFLAG_RW \| CTLTYPE_UINT, &ti_adc_inputs[ain], 0,
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT,
	+ &ti_adc_inputs[ain], 0,
	ti_adc_samples_avg_proc, "IU", "ADC samples average");
	SYSCTL_ADD_INT(ctx, inpN_tree, OID_AUTO, "input",
	CTLFLAG_RD, &ti_adc_inputs[ain].value, 0,
	Index: head/sys/arm/ti/ti_pruss.c
	===================================================================
	--- head/sys/arm/ti/ti_pruss.c
	+++ head/sys/arm/ti/ti_pruss.c
	@@ -542,10 +542,11 @@

	sc->sc_glob_irqen = false;
	struct sysctl_oid *irq_root = SYSCTL_ADD_NODE(clist, SYSCTL_CHILDREN(poid),
	- OID_AUTO, "irq", CTLFLAG_RD, 0,
	+ OID_AUTO, "irq", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"PRUSS Host Interrupts");
	SYSCTL_ADD_PROC(clist, SYSCTL_CHILDREN(poid), OID_AUTO,
	- "global_interrupt_enable", CTLFLAG_RW \| CTLTYPE_U8,
	+ "global_interrupt_enable",
	+ CTLFLAG_RW \| CTLTYPE_U8 \| CTLFLAG_NEEDGIANT,
	sc, 0, ti_pruss_global_interrupt_enable,
	"CU", "Global interrupt enable");

	@@ -564,16 +565,19 @@
	snprintf(name, sizeof(name), "%d", i);

	struct sysctl_oid *irq_nodes = SYSCTL_ADD_NODE(clist, SYSCTL_CHILDREN(irq_root),
	- OID_AUTO, name, CTLFLAG_RD, 0,
	+ OID_AUTO, name, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"PRUSS Interrupts");
	SYSCTL_ADD_PROC(clist, SYSCTL_CHILDREN(irq_nodes), OID_AUTO,
	- "channel", CTLFLAG_RW \| CTLTYPE_STRING, sc, i, ti_pruss_channel_map,
	+ "channel", CTLFLAG_RW \| CTLTYPE_STRING \| CTLFLAG_NEEDGIANT,
	+ sc, i, ti_pruss_channel_map,
	"A", "Channel attached to this irq");
	SYSCTL_ADD_PROC(clist, SYSCTL_CHILDREN(irq_nodes), OID_AUTO,
	- "event", CTLFLAG_RW \| CTLTYPE_STRING, sc, i, ti_pruss_event_map,
	+ "event", CTLFLAG_RW \| CTLTYPE_STRING \| CTLFLAG_NEEDGIANT,
	+ sc, i, ti_pruss_event_map,
	"A", "Event attached to this irq");
	SYSCTL_ADD_PROC(clist, SYSCTL_CHILDREN(irq_nodes), OID_AUTO,
	- "enable", CTLFLAG_RW \| CTLTYPE_U8, sc, i, ti_pruss_interrupt_enable,
	+ "enable", CTLFLAG_RW \| CTLTYPE_U8 \| CTLFLAG_NEEDGIANT,
	+ sc, i, ti_pruss_interrupt_enable,
	"CU", "Enable/Disable interrupt");

	sc->sc_irq_devs[i].event = -1;
	Index: head/sys/arm/ti/twl/twl_clks.c
	===================================================================
	--- head/sys/arm/ti/twl/twl_clks.c
	+++ head/sys/arm/ti/twl/twl_clks.c
	@@ -471,7 +471,7 @@

	/* Add a sysctl entry for the clock */
	new->oid = SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, name,
	- CTLTYPE_INT \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	twl_clks_sysctl_clock, "I", "external clock");

	/* Finally add the regulator to list of supported regulators */
	Index: head/sys/arm/ti/twl/twl_vreg.c
	===================================================================
	--- head/sys/arm/ti/twl/twl_vreg.c
	+++ head/sys/arm/ti/twl/twl_vreg.c
	@@ -848,7 +848,7 @@

	/* Add a sysctl entry for the voltage */
	new->oid = SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, name,
	- CTLTYPE_INT \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	twl_vreg_sysctl_voltage, "I", "voltage regulator");

	/* Finally add the regulator to list of supported regulators */
	Index: head/sys/arm/xilinx/zy7_devcfg.c
	===================================================================
	--- head/sys/arm/xilinx/zy7_devcfg.c
	+++ head/sys/arm/xilinx/zy7_devcfg.c
	@@ -101,12 +101,14 @@
	#define RD4(sc, off) (bus_read_4((sc)->mem_res, (off)))
	#define WR4(sc, off, val) (bus_write_4((sc)->mem_res, (off), (val)))

	-SYSCTL_NODE(_hw, OID_AUTO, fpga, CTLFLAG_RD, 0, \
	- "Xilinx Zynq-7000 PL (FPGA) section");
	+SYSCTL_NODE(_hw, OID_AUTO, fpga, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Xilinx Zynq-7000 PL (FPGA) section");

	static int zy7_devcfg_sysctl_pl_done(SYSCTL_HANDLER_ARGS);
	-SYSCTL_PROC(_hw_fpga, OID_AUTO, pl_done, CTLTYPE_INT \| CTLFLAG_RD, NULL, 0,
	- zy7_devcfg_sysctl_pl_done, "I", "PL section config DONE signal");
	+SYSCTL_PROC(_hw_fpga, OID_AUTO, pl_done,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ zy7_devcfg_sysctl_pl_done, "I",
	+ "PL section config DONE signal");

	static int zy7_en_level_shifters = 1;
	SYSCTL_INT(_hw_fpga, OID_AUTO, en_level_shifters, CTLFLAG_RW,
	@@ -119,9 +121,9 @@

	static int zy7_devcfg_fclk_sysctl_level_shifters(SYSCTL_HANDLER_ARGS);
	SYSCTL_PROC(_hw_fpga, OID_AUTO, level_shifters,
	- CTLFLAG_RW \| CTLTYPE_INT,
	- NULL, 0, zy7_devcfg_fclk_sysctl_level_shifters,
	- "I", "Enable/disable level shifters");
	+ CTLFLAG_RW \| CTLTYPE_INT \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ zy7_devcfg_fclk_sysctl_level_shifters, "I",
	+ "Enable/disable level shifters");

	/* cdev entry points. */
	static int zy7_devcfg_open(struct cdev , int, int, struct thread );
	@@ -360,7 +362,7 @@
	sysctl_ctx_init(&sc->sysctl_tree);
	sc->sysctl_tree_top = SYSCTL_ADD_NODE(&sc->sysctl_tree,
	SYSCTL_STATIC_CHILDREN(_hw_fpga), OID_AUTO, "fclk",
	- CTLFLAG_RD, 0, "");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");
	if (sc->sysctl_tree_top == NULL) {
	sysctl_ctx_free(&sc->sysctl_tree);
	return (-1);
	@@ -370,7 +372,7 @@
	snprintf(fclk_num, sizeof(fclk_num), "%d", i);
	fclk_node = SYSCTL_ADD_NODE(&sc->sysctl_tree,
	SYSCTL_CHILDREN(sc->sysctl_tree_top), OID_AUTO, fclk_num,
	- CTLFLAG_RD, 0, "");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");

	SYSCTL_ADD_INT(&sc->sysctl_tree,
	SYSCTL_CHILDREN(fclk_node), OID_AUTO,
	@@ -379,13 +381,13 @@
	"Actual frequency");
	SYSCTL_ADD_PROC(&sc->sysctl_tree,
	SYSCTL_CHILDREN(fclk_node), OID_AUTO,
	- "freq", CTLFLAG_RW \| CTLTYPE_INT,
	+ "freq", CTLFLAG_RW \| CTLTYPE_INT \| CTLFLAG_NEEDGIANT,
	&fclk_configs[i], i,
	zy7_devcfg_fclk_sysctl_freq,
	"I", "Configured frequency");
	SYSCTL_ADD_PROC(&sc->sysctl_tree,
	SYSCTL_CHILDREN(fclk_node), OID_AUTO,
	- "source", CTLFLAG_RW \| CTLTYPE_STRING,
	+ "source", CTLFLAG_RW \| CTLTYPE_STRING \| CTLFLAG_NEEDGIANT,
	&fclk_configs[i], i,
	zy7_devcfg_fclk_sysctl_source,
	"A", "Clock source");
	Index: head/sys/arm/xilinx/zy7_slcr.c
	===================================================================
	--- head/sys/arm/xilinx/zy7_slcr.c
	+++ head/sys/arm/xilinx/zy7_slcr.c
	@@ -80,7 +80,8 @@

	#define ZYNQ_DEFAULT_PS_CLK_FREQUENCY 33333333 /* 33.3 Mhz */

	-SYSCTL_NODE(_hw, OID_AUTO, zynq, CTLFLAG_RD, 0, "Xilinx Zynq-7000");
	+SYSCTL_NODE(_hw, OID_AUTO, zynq, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Xilinx Zynq-7000");

	static char zynq_bootmode[64];
	SYSCTL_STRING(_hw_zynq, OID_AUTO, bootmode, CTLFLAG_RD, zynq_bootmode, 0,
	Index: head/sys/arm64/arm64/busdma_bounce.c
	===================================================================
	--- head/sys/arm64/arm64/busdma_bounce.c
	+++ head/sys/arm64/arm64/busdma_bounce.c
	@@ -113,7 +113,8 @@
	static int busdma_zonecount;
	static STAILQ_HEAD(, bounce_zone) bounce_zone_list;

	-static SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD, 0, "Busdma parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Busdma parameters");
	SYSCTL_INT(_hw_busdma, OID_AUTO, total_bpages, CTLFLAG_RD, &total_bpages, 0,
	"Total bounce pages");

	@@ -1146,7 +1147,7 @@
	sysctl_ctx_init(&bz->sysctl_tree);
	bz->sysctl_tree_top = SYSCTL_ADD_NODE(&bz->sysctl_tree,
	SYSCTL_STATIC_CHILDREN(_hw_busdma), OID_AUTO, bz->zoneid,
	- CTLFLAG_RD, 0, "");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");
	if (bz->sysctl_tree_top == NULL) {
	sysctl_ctx_free(&bz->sysctl_tree);
	return (0); /* XXX error code? */
	Index: head/sys/arm64/arm64/pmap.c
	===================================================================
	--- head/sys/arm64/arm64/pmap.c
	+++ head/sys/arm64/arm64/pmap.c
	@@ -270,7 +270,8 @@
	static vm_paddr_t physmap[PHYSMAP_SIZE];
	static u_int physmap_idx;

	-static SYSCTL_NODE(_vm, OID_AUTO, pmap, CTLFLAG_RD, 0, "VM/pmap parameters");
	+static SYSCTL_NODE(_vm, OID_AUTO, pmap, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "VM/pmap parameters");

	/*
	* This ASID allocator uses a bit vector ("asid_set") to remember which ASIDs
	@@ -294,7 +295,8 @@

	static struct asid_set asids;

	-static SYSCTL_NODE(_vm_pmap, OID_AUTO, asid, CTLFLAG_RD, 0, "ASID allocator");
	+static SYSCTL_NODE(_vm_pmap, OID_AUTO, asid, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "ASID allocator");
	SYSCTL_INT(_vm_pmap_asid, OID_AUTO, bits, CTLFLAG_RD, &asids.asid_bits, 0,
	"The number of bits in an ASID");
	SYSCTL_INT(_vm_pmap_asid, OID_AUTO, next, CTLFLAG_RD, &asids.asid_next, 0,
	@@ -1032,7 +1034,7 @@
	vm_initialized = 1;
	}

	-static SYSCTL_NODE(_vm_pmap, OID_AUTO, l2, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_vm_pmap, OID_AUTO, l2, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"2MB page mapping counters");

	static u_long pmap_l2_demotions;
	Index: head/sys/cam/ata/ata_da.c
	===================================================================
	--- head/sys/cam/ata/ata_da.c
	+++ head/sys/cam/ata/ata_da.c
	@@ -881,8 +881,8 @@
	static int ada_write_cache = ADA_DEFAULT_WRITE_CACHE;
	static int ada_enable_biospeedup = 1;

	-static SYSCTL_NODE(_kern_cam, OID_AUTO, ada, CTLFLAG_RD, 0,
	- "CAM Direct Access Disk driver");
	+static SYSCTL_NODE(_kern_cam, OID_AUTO, ada, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "CAM Direct Access Disk driver");
	SYSCTL_INT(_kern_cam_ada, OID_AUTO, retry_count, CTLFLAG_RWTUN,
	&ada_retry_count, 0, "Normal I/O retry count");
	SYSCTL_INT(_kern_cam_ada, OID_AUTO, default_timeout, CTLFLAG_RWTUN,
	@@ -1455,7 +1455,7 @@
	softc->flags \|= ADA_FLAG_SCTX_INIT;
	softc->sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&softc->sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_kern_cam_ada), OID_AUTO, tmpstr2,
	- CTLFLAG_RD, 0, tmpstr, "device_index");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, tmpstr, "device_index");
	if (softc->sysctl_tree == NULL) {
	printf("adasysctlinit: unable to allocate sysctl tree\n");
	cam_periph_release(periph);
	@@ -1463,7 +1463,8 @@
	}

	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
	- OID_AUTO, "delete_method", CTLTYPE_STRING \| CTLFLAG_RW,
	+ OID_AUTO, "delete_method",
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	softc, 0, adadeletemethodsysctl, "A",
	"BIO_DELETE execution method");
	SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
	@@ -1491,11 +1492,13 @@
	OID_AUTO, "rotating", CTLFLAG_RD \| CTLFLAG_MPSAFE,
	&softc->rotating, 0, "Rotating media");
	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
	- OID_AUTO, "zone_mode", CTLTYPE_STRING \| CTLFLAG_RD,
	+ OID_AUTO, "zone_mode",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	softc, 0, adazonemodesysctl, "A",
	"Zone Mode");
	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
	- OID_AUTO, "zone_support", CTLTYPE_STRING \| CTLFLAG_RD,
	+ OID_AUTO, "zone_support",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	softc, 0, adazonesupsysctl, "A",
	"Zone Support");
	SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
	@@ -1540,7 +1543,7 @@
	#ifdef CAM_IO_STATS
	softc->sysctl_stats_tree = SYSCTL_ADD_NODE(&softc->sysctl_stats_ctx,
	SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, "stats",
	- CTLFLAG_RD, 0, "Statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "Statistics");
	SYSCTL_ADD_INT(&softc->sysctl_stats_ctx,
	SYSCTL_CHILDREN(softc->sysctl_stats_tree),
	OID_AUTO, "timeouts", CTLFLAG_RD \| CTLFLAG_MPSAFE,
	Index: head/sys/cam/ata/ata_pmp.c
	===================================================================
	--- head/sys/cam/ata/ata_pmp.c
	+++ head/sys/cam/ata/ata_pmp.c
	@@ -139,8 +139,8 @@
	static int pmp_default_timeout = PMP_DEFAULT_TIMEOUT;
	static int pmp_hide_special = PMP_DEFAULT_HIDE_SPECIAL;

	-static SYSCTL_NODE(_kern_cam, OID_AUTO, pmp, CTLFLAG_RD, 0,
	- "CAM Direct Access Disk driver");
	+static SYSCTL_NODE(_kern_cam, OID_AUTO, pmp, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "CAM Direct Access Disk driver");
	SYSCTL_INT(_kern_cam_pmp, OID_AUTO, retry_count, CTLFLAG_RWTUN,
	&pmp_retry_count, 0, "Normal I/O retry count");
	SYSCTL_INT(_kern_cam_pmp, OID_AUTO, default_timeout, CTLFLAG_RWTUN,
	@@ -354,7 +354,7 @@
	softc->flags \|= PMP_FLAG_SCTX_INIT;
	softc->sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&softc->sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_kern_cam_pmp), OID_AUTO, tmpstr2,
	- CTLFLAG_RD, 0, tmpstr, "device_index");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, tmpstr, "device_index");
	if (softc->sysctl_tree == NULL) {
	printf("pmpsysctlinit: unable to allocate sysctl tree\n");
	cam_periph_release(periph);
	Index: head/sys/cam/cam.c
	===================================================================
	--- head/sys/cam/cam.c
	+++ head/sys/cam/cam.c
	@@ -108,7 +108,8 @@
	};

	#ifdef _KERNEL
	-SYSCTL_NODE(_kern, OID_AUTO, cam, CTLFLAG_RD, 0, "CAM Subsystem");
	+SYSCTL_NODE(_kern, OID_AUTO, cam, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "CAM Subsystem");

	#ifndef CAM_DEFAULT_SORT_IO_QUEUES
	#define CAM_DEFAULT_SORT_IO_QUEUES 1
	Index: head/sys/cam/cam_iosched.c
	===================================================================
	--- head/sys/cam/cam_iosched.c
	+++ head/sys/cam/cam_iosched.c
	@@ -976,7 +976,7 @@

	ios->sysctl_tree = SYSCTL_ADD_NODE(&isc->sysctl_ctx,
	SYSCTL_CHILDREN(isc->sysctl_tree), OID_AUTO, name,
	- CTLFLAG_RD, 0, name);
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, name);
	n = SYSCTL_CHILDREN(ios->sysctl_tree);
	ctx = &ios->sysctl_ctx;

	@@ -1015,7 +1015,8 @@
	"# of transactions completed with an error");

	SYSCTL_ADD_PROC(ctx, n,
	- OID_AUTO, "limiter", CTLTYPE_STRING \| CTLFLAG_RW,
	+ OID_AUTO, "limiter",
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	ios, 0, cam_iosched_limiter_sysctl, "A",
	"Current limiting type.");
	SYSCTL_ADD_INT(ctx, n,
	@@ -1032,7 +1033,8 @@
	"current resource");

	SYSCTL_ADD_PROC(ctx, n,
	- OID_AUTO, "latencies", CTLTYPE_STRING \| CTLFLAG_RD,
	+ OID_AUTO, "latencies",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	&ios->latencies, 0,
	cam_iosched_sysctl_latencies, "A",
	"Array of power of 2 latency from 1ms to 1.024s");
	@@ -1056,24 +1058,28 @@
	clp = &isc->cl;
	clp->sysctl_tree = SYSCTL_ADD_NODE(&isc->sysctl_ctx,
	SYSCTL_CHILDREN(isc->sysctl_tree), OID_AUTO, "control",
	- CTLFLAG_RD, 0, "Control loop info");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "Control loop info");
	n = SYSCTL_CHILDREN(clp->sysctl_tree);
	ctx = &clp->sysctl_ctx;

	SYSCTL_ADD_PROC(ctx, n,
	- OID_AUTO, "type", CTLTYPE_STRING \| CTLFLAG_RW,
	+ OID_AUTO, "type",
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	clp, 0, cam_iosched_control_type_sysctl, "A",
	"Control loop algorithm");
	SYSCTL_ADD_PROC(ctx, n,
	- OID_AUTO, "steer_interval", CTLTYPE_STRING \| CTLFLAG_RW,
	+ OID_AUTO, "steer_interval",
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&clp->steer_interval, 0, cam_iosched_sbintime_sysctl, "A",
	"How often to steer (in us)");
	SYSCTL_ADD_PROC(ctx, n,
	- OID_AUTO, "lolat", CTLTYPE_STRING \| CTLFLAG_RW,
	+ OID_AUTO, "lolat",
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&clp->lolat, 0, cam_iosched_sbintime_sysctl, "A",
	"Low water mark for Latency (in us)");
	SYSCTL_ADD_PROC(ctx, n,
	- OID_AUTO, "hilat", CTLTYPE_STRING \| CTLFLAG_RW,
	+ OID_AUTO, "hilat",
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&clp->hilat, 0, cam_iosched_sbintime_sysctl, "A",
	"Hi water mark for Latency (in us)");
	SYSCTL_ADD_INT(ctx, n,
	@@ -1186,7 +1192,7 @@

	isc->sysctl_tree = SYSCTL_ADD_NODE(&isc->sysctl_ctx,
	SYSCTL_CHILDREN(node), OID_AUTO, "iosched",
	- CTLFLAG_RD, 0, "I/O scheduler statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "I/O scheduler statistics");
	n = SYSCTL_CHILDREN(isc->sysctl_tree);
	ctx = &isc->sysctl_ctx;

	@@ -1201,7 +1207,7 @@
	"How biased towards read should we be independent of limits");

	SYSCTL_ADD_PROC(ctx, n,
	- OID_AUTO, "quanta", CTLTYPE_UINT \| CTLFLAG_RW,
	+ OID_AUTO, "quanta", CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&isc->quanta, 0, cam_iosched_quanta_sysctl, "I",
	"How many quanta per second do we slice the I/O up into");

	Index: head/sys/cam/ctl/ctl.c
	===================================================================
	--- head/sys/cam/ctl/ctl.c
	+++ head/sys/cam/ctl/ctl.c
	@@ -406,7 +406,8 @@
	/num_speed_descr/0,
	};

	-SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer");
	+SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "CAM Target Layer");
	static int worker_threads = -1;
	SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN,
	&worker_threads, 1, "Number of worker threads");
	@@ -1879,7 +1880,7 @@
	sysctl_ctx_init(&softc->sysctl_ctx);
	softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl",
	- CTLFLAG_RD, 0, "CAM Target Layer");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "CAM Target Layer");

	if (softc->sysctl_tree == NULL) {
	printf("%s: unable to allocate sysctl tree\n", __func__);
	@@ -1986,7 +1987,8 @@
	}

	SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
	- OID_AUTO, "ha_role", CTLTYPE_INT \| CTLFLAG_RWTUN,
	+ OID_AUTO, "ha_role",
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT,
	softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head");

	if (softc->is_single == 0) {
	Index: head/sys/cam/ctl/ctl_backend_block.c
	===================================================================
	--- head/sys/cam/ctl/ctl_backend_block.c
	+++ head/sys/cam/ctl/ctl_backend_block.c
	@@ -222,7 +222,7 @@
	extern struct ctl_softc *control_softc;

	static int cbb_num_threads = 14;
	-SYSCTL_NODE(_kern_cam_ctl, OID_AUTO, block, CTLFLAG_RD, 0,
	+SYSCTL_NODE(_kern_cam_ctl, OID_AUTO, block, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"CAM Target Layer Block Backend");
	SYSCTL_INT(_kern_cam_ctl_block, OID_AUTO, num_threads, CTLFLAG_RWTUN,
	&cbb_num_threads, 0, "Number of threads per backing file");
	Index: head/sys/cam/ctl/ctl_frontend_cam_sim.c
	===================================================================
	--- head/sys/cam/ctl/ctl_frontend_cam_sim.c
	+++ head/sys/cam/ctl/ctl_frontend_cam_sim.c
	@@ -109,8 +109,8 @@
	*/
	static int cfcs_max_sense = sizeof(struct scsi_sense_data);

	-SYSCTL_NODE(_kern_cam, OID_AUTO, ctl2cam, CTLFLAG_RD, 0,
	- "CAM Target Layer SIM frontend");
	+SYSCTL_NODE(_kern_cam, OID_AUTO, ctl2cam, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "CAM Target Layer SIM frontend");
	SYSCTL_INT(_kern_cam_ctl2cam, OID_AUTO, max_sense, CTLFLAG_RW,
	&cfcs_max_sense, 0, "Maximum sense data size");

	Index: head/sys/cam/ctl/ctl_frontend_iscsi.c
	===================================================================
	--- head/sys/cam/ctl/ctl_frontend_iscsi.c
	+++ head/sys/cam/ctl/ctl_frontend_iscsi.c
	@@ -88,7 +88,7 @@
	static MALLOC_DEFINE(M_CFISCSI, "cfiscsi", "Memory used for CTL iSCSI frontend");
	static uma_zone_t cfiscsi_data_wait_zone;

	-SYSCTL_NODE(_kern_cam_ctl, OID_AUTO, iscsi, CTLFLAG_RD, 0,
	+SYSCTL_NODE(_kern_cam_ctl, OID_AUTO, iscsi, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"CAM Target Layer iSCSI Frontend");
	static int debug = 1;
	SYSCTL_INT(_kern_cam_ctl_iscsi, OID_AUTO, debug, CTLFLAG_RWTUN,
	Index: head/sys/cam/ctl/ctl_ha.c
	===================================================================
	--- head/sys/cam/ctl/ctl_ha.c
	+++ head/sys/cam/ctl/ctl_ha.c
	@@ -957,7 +957,8 @@
	ctl_ha_msg_shutdown, ctl_softc, SHUTDOWN_PRI_FIRST);
	SYSCTL_ADD_PROC(&ctl_softc->sysctl_ctx,
	SYSCTL_CHILDREN(ctl_softc->sysctl_tree),
	- OID_AUTO, "ha_peer", CTLTYPE_STRING \| CTLFLAG_RWTUN,
	+ OID_AUTO, "ha_peer",
	+ CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT,
	softc, 0, ctl_ha_peer_sysctl, "A", "HA peer connection method");

	if (ctl_ha_msg_register(CTL_HA_CHAN_DATA, ctl_dt_event_handler)
	Index: head/sys/cam/nvme/nvme_da.c
	===================================================================
	--- head/sys/cam/nvme/nvme_da.c
	+++ head/sys/cam/nvme/nvme_da.c
	@@ -168,8 +168,8 @@
	#define NDA_MAX_TRIM_ENTRIES (NVME_MAX_DSM_TRIM / sizeof(struct nvme_dsm_range))/* Number of DSM trims to use, max 256 */
	#endif

	-static SYSCTL_NODE(_kern_cam, OID_AUTO, nda, CTLFLAG_RD, 0,
	- "CAM Direct Access Disk driver");
	+static SYSCTL_NODE(_kern_cam, OID_AUTO, nda, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "CAM Direct Access Disk driver");

	//static int nda_retry_count = NDA_DEFAULT_RETRY;
	static int nda_send_ordered = NDA_DEFAULT_SEND_ORDERED;
	@@ -627,7 +627,7 @@
	softc->flags \|= NDA_FLAG_SCTX_INIT;
	softc->sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&softc->sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_kern_cam_nda), OID_AUTO, tmpstr2,
	- CTLFLAG_RD, 0, tmpstr, "device_index");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, tmpstr, "device_index");
	if (softc->sysctl_tree == NULL) {
	printf("ndasysctlinit: unable to allocate sysctl tree\n");
	cam_periph_release(periph);
	@@ -662,7 +662,7 @@
	#ifdef CAM_IO_STATS
	softc->sysctl_stats_tree = SYSCTL_ADD_NODE(&softc->sysctl_stats_ctx,
	SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, "stats",
	- CTLFLAG_RD, 0, "Statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "Statistics");
	if (softc->sysctl_stats_tree == NULL) {
	printf("ndasysctlinit: unable to allocate sysctl tree for stats\n");
	cam_periph_release(periph);
	Index: head/sys/cam/scsi/scsi_all.c
	===================================================================
	--- head/sys/cam/scsi/scsi_all.c
	+++ head/sys/cam/scsi/scsi_all.c
	@@ -9234,8 +9234,8 @@
	return (error);
	return (set_scsi_delay(delay));
	}
	-SYSCTL_PROC(_kern_cam, OID_AUTO, scsi_delay, CTLTYPE_INT\|CTLFLAG_RW,
	- 0, 0, sysctl_scsi_delay, "I",
	+SYSCTL_PROC(_kern_cam, OID_AUTO, scsi_delay,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, 0, sysctl_scsi_delay, "I",
	"Delay to allow devices to settle after a SCSI bus reset (ms)");

	static int
	Index: head/sys/cam/scsi/scsi_cd.c
	===================================================================
	--- head/sys/cam/scsi/scsi_cd.c
	+++ head/sys/cam/scsi/scsi_cd.c
	@@ -326,7 +326,8 @@
	static int cd_retry_count = CD_DEFAULT_RETRY;
	static int cd_timeout = CD_DEFAULT_TIMEOUT;

	-static SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver");
	+static SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "CAM CDROM driver");
	SYSCTL_INT(_kern_cam_cd, OID_AUTO, poll_period, CTLFLAG_RWTUN,
	&cd_poll_period, 0, "Media polling period in seconds");
	SYSCTL_INT(_kern_cam_cd, OID_AUTO, retry_count, CTLFLAG_RWTUN,
	@@ -523,7 +524,8 @@
	softc->flags \|= CD_FLAG_SCTX_INIT;
	softc->sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&softc->sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO,
	- tmpstr2, CTLFLAG_RD, 0, tmpstr, "device_index");
	+ tmpstr2, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, tmpstr,
	+ "device_index");

	if (softc->sysctl_tree == NULL) {
	printf("cdsysctlinit: unable to allocate sysctl tree\n");
	@@ -536,7 +538,8 @@
	* the fly.
	*/
	SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
	- OID_AUTO, "minimum_cmd_size", CTLTYPE_INT \| CTLFLAG_RW,
	+ OID_AUTO, "minimum_cmd_size",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&softc->minimum_command_size, 0, cdcmdsizesysctl, "I",
	"Minimum CDB size");

	Index: head/sys/cam/scsi/scsi_da.c
	===================================================================
	--- head/sys/cam/scsi/scsi_da.c
	+++ head/sys/cam/scsi/scsi_da.c
	@@ -1549,8 +1549,8 @@
	static int da_disable_wp_detection = 0;
	static int da_enable_biospeedup = 1;

	-static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
	- "CAM Direct Access Disk driver");
	+static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "CAM Direct Access Disk driver");
	SYSCTL_INT(_kern_cam_da, OID_AUTO, poll_period, CTLFLAG_RWTUN,
	&da_poll_period, 0, "Media polling period in seconds");
	SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RWTUN,
	@@ -1566,7 +1566,8 @@
	&da_enable_biospeedup, 0, "Enable BIO_SPEEDUP processing");

	SYSCTL_PROC(_kern_cam_da, OID_AUTO, default_softtimeout,
	- CTLTYPE_UINT \| CTLFLAG_RW, NULL, 0, dasysctlsofttimeout, "I",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ dasysctlsofttimeout, "I",
	"Soft I/O timeout (ms)");
	TUNABLE_INT64("kern.cam.da.default_softtimeout", &da_default_softtimeout);

	@@ -2252,7 +2253,7 @@
	cam_periph_unlock(periph);
	softc->sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&softc->sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
	- CTLFLAG_RD, 0, tmpstr, "device_index");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, tmpstr, "device_index");
	if (softc->sysctl_tree == NULL) {
	printf("dasysctlinit: unable to allocate sysctl tree\n");
	da_periph_release(periph, DA_REF_SYSCTL);
	@@ -2264,15 +2265,18 @@
	* the fly.
	*/
	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
	- OID_AUTO, "delete_method", CTLTYPE_STRING \| CTLFLAG_RWTUN,
	+ OID_AUTO, "delete_method",
	+ CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT,
	softc, 0, dadeletemethodsysctl, "A",
	"BIO_DELETE execution method");
	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
	- OID_AUTO, "delete_max", CTLTYPE_U64 \| CTLFLAG_RW,
	+ OID_AUTO, "delete_max",
	+ CTLTYPE_U64 \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	softc, 0, dadeletemaxsysctl, "Q",
	"Maximum BIO_DELETE size");
	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
	- OID_AUTO, "minimum_cmd_size", CTLTYPE_INT \| CTLFLAG_RW,
	+ OID_AUTO, "minimum_cmd_size",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
	"Minimum CDB size");
	SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
	@@ -2289,11 +2293,13 @@
	"Total lbas in the unmap/dsm commands sent");

	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
	- OID_AUTO, "zone_mode", CTLTYPE_STRING \| CTLFLAG_RD,
	+ OID_AUTO, "zone_mode",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	softc, 0, dazonemodesysctl, "A",
	"Zone Mode");
	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
	- OID_AUTO, "zone_support", CTLTYPE_STRING \| CTLFLAG_RD,
	+ OID_AUTO, "zone_support",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	softc, 0, dazonesupsysctl, "A",
	"Zone Support");
	SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
	@@ -2381,7 +2387,7 @@
	*/
	softc->sysctl_stats_tree = SYSCTL_ADD_NODE(&softc->sysctl_stats_ctx,
	SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, "stats",
	- CTLFLAG_RD, 0, "Statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "Statistics");
	SYSCTL_ADD_INT(&softc->sysctl_stats_ctx,
	SYSCTL_CHILDREN(softc->sysctl_stats_tree),
	OID_AUTO,
	Index: head/sys/cam/scsi/scsi_enc.c
	===================================================================
	--- head/sys/cam/scsi/scsi_enc.c
	+++ head/sys/cam/scsi/scsi_enc.c
	@@ -78,8 +78,8 @@
	static void enc_async(void , uint32_t, struct cam_path , void *);
	static enctyp enc_type(struct ccb_getdev *);

	-SYSCTL_NODE(_kern_cam, OID_AUTO, enc, CTLFLAG_RD, 0,
	- "CAM Enclosure Services driver");
	+SYSCTL_NODE(_kern_cam, OID_AUTO, enc, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "CAM Enclosure Services driver");

	#if defined(DEBUG) \|\| defined(ENC_DEBUG)
	int enc_verbose = 1;
	Index: head/sys/cam/scsi/scsi_sa.c
	===================================================================
	--- head/sys/cam/scsi/scsi_sa.c
	+++ head/sys/cam/scsi/scsi_sa.c
	@@ -618,8 +618,8 @@
	* is bad behavior, because it hides the true tape block size from the
	* application.
	*/
	-static SYSCTL_NODE(_kern_cam, OID_AUTO, sa, CTLFLAG_RD, 0,
	- "CAM Sequential Access Tape Driver");
	+static SYSCTL_NODE(_kern_cam, OID_AUTO, sa, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "CAM Sequential Access Tape Driver");
	SYSCTL_INT(_kern_cam_sa, OID_AUTO, allow_io_split, CTLFLAG_RDTUN,
	&sa_allow_io_split, 0, "Default I/O split value");

	@@ -2314,7 +2314,7 @@
	softc->flags \|= SA_FLAG_SCTX_INIT;
	softc->sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&softc->sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_kern_cam_sa), OID_AUTO, tmpstr2,
	- CTLFLAG_RD, 0, tmpstr, "device_index");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, tmpstr, "device_index");
	if (softc->sysctl_tree == NULL)
	goto bailout;

	Index: head/sys/cam/scsi/scsi_xpt.c
	===================================================================
	--- head/sys/cam/scsi/scsi_xpt.c
	+++ head/sys/cam/scsi/scsi_xpt.c
	@@ -80,7 +80,8 @@

	static int cam_srch_hi = 0;
	static int sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS);
	-SYSCTL_PROC(_kern_cam, OID_AUTO, cam_srch_hi, CTLTYPE_INT \| CTLFLAG_RWTUN, 0, 0,
	+SYSCTL_PROC(_kern_cam, OID_AUTO, cam_srch_hi,
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, 0, 0,
	sysctl_cam_search_luns, "I",
	"allow search above LUN 7 for SCSI3 and greater devices");

	Index: head/sys/cddl/compat/opensolaris/kern/opensolaris_kstat.c
	===================================================================
	--- head/sys/cddl/compat/opensolaris/kern/opensolaris_kstat.c
	+++ head/sys/cddl/compat/opensolaris/kern/opensolaris_kstat.c
	@@ -36,7 +36,8 @@

	static MALLOC_DEFINE(M_KSTAT, "kstat_data", "Kernel statistics");

	-SYSCTL_ROOT_NODE(OID_AUTO, kstat, CTLFLAG_RW, 0, "Kernel statistics");
	+SYSCTL_ROOT_NODE(OID_AUTO, kstat, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Kernel statistics");

	kstat_t *
	kstat_create(char module, int instance, char name, char *class, uchar_t type,
	@@ -64,8 +65,8 @@
	*/
	sysctl_ctx_init(&ksp->ks_sysctl_ctx);
	root = SYSCTL_ADD_NODE(&ksp->ks_sysctl_ctx,
	- SYSCTL_STATIC_CHILDREN(_kstat), OID_AUTO, module, CTLFLAG_RW, 0,
	- "");
	+ SYSCTL_STATIC_CHILDREN(_kstat), OID_AUTO, module,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, "");
	if (root == NULL) {
	printf("%s: Cannot create kstat.%s tree!\n", __func__, module);
	sysctl_ctx_free(&ksp->ks_sysctl_ctx);
	@@ -73,7 +74,7 @@
	return (NULL);
	}
	root = SYSCTL_ADD_NODE(&ksp->ks_sysctl_ctx, SYSCTL_CHILDREN(root),
	- OID_AUTO, class, CTLFLAG_RW, 0, "");
	+ OID_AUTO, class, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, "");
	if (root == NULL) {
	printf("%s: Cannot create kstat.%s.%s tree!\n", __func__,
	module, class);
	@@ -82,7 +83,7 @@
	return (NULL);
	}
	root = SYSCTL_ADD_NODE(&ksp->ks_sysctl_ctx, SYSCTL_CHILDREN(root),
	- OID_AUTO, name, CTLFLAG_RW, 0, "");
	+ OID_AUTO, name, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, "");
	if (root == NULL) {
	printf("%s: Cannot create kstat.%s.%s.%s tree!\n", __func__,
	module, class, name);
	Index: head/sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c
	===================================================================
	--- head/sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c
	+++ head/sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c
	@@ -236,7 +236,8 @@

	#ifdef __FreeBSD__
	SYSCTL_DECL(_kern_dtrace);
	-SYSCTL_NODE(_kern_dtrace, OID_AUTO, fasttrap, CTLFLAG_RD, 0, "DTrace fasttrap parameters");
	+SYSCTL_NODE(_kern_dtrace, OID_AUTO, fasttrap, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "DTrace fasttrap parameters");
	SYSCTL_UINT(_kern_dtrace_fasttrap, OID_AUTO, max_probes, CTLFLAG_RWTUN, &fasttrap_max,
	FASTTRAP_MAX_DEFAULT, "Maximum number of fasttrap probes");
	SYSCTL_ULONG(_kern_dtrace_fasttrap, OID_AUTO, tpoints_hash_size, CTLFLAG_RDTUN, &tpoints_hash_size,
	Index: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/ddt.c
	===================================================================
	--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/ddt.c
	+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/ddt.c
	@@ -44,7 +44,8 @@
	int zfs_dedup_prefetch = 1;

	SYSCTL_DECL(_vfs_zfs);
	-SYSCTL_NODE(_vfs_zfs, OID_AUTO, dedup, CTLFLAG_RW, 0, "ZFS DEDUP");
	+SYSCTL_NODE(_vfs_zfs, OID_AUTO, dedup, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "ZFS DEDUP");
	SYSCTL_INT(_vfs_zfs_dedup, OID_AUTO, prefetch, CTLFLAG_RWTUN, &zfs_dedup_prefetch,
	0, "Enable/disable prefetching of dedup-ed blocks which are going to be freed");

	Index: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c
	===================================================================
	--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c
	+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c
	@@ -57,7 +57,8 @@
	SYSCTL_DECL(_vfs_zfs);
	SYSCTL_INT(_vfs_zfs, OID_AUTO, prefetch_disable, CTLFLAG_RW,
	&zfs_prefetch_disable, 0, "Disable prefetch");
	-SYSCTL_NODE(_vfs_zfs, OID_AUTO, zfetch, CTLFLAG_RW, 0, "ZFS ZFETCH");
	+SYSCTL_NODE(_vfs_zfs, OID_AUTO, zfetch, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "ZFS ZFETCH");
	SYSCTL_UINT(_vfs_zfs_zfetch, OID_AUTO, max_streams, CTLFLAG_RWTUN,
	&zfetch_max_streams, 0, "Max # of streams per zfetch");
	SYSCTL_UINT(_vfs_zfs_zfetch, OID_AUTO, min_sec_reap, CTLFLAG_RWTUN,
	Index: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c
	===================================================================
	--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c
	+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c
	@@ -39,7 +39,8 @@
	#include <sys/zap.h>

	SYSCTL_DECL(_vfs_zfs);
	-SYSCTL_NODE(_vfs_zfs, OID_AUTO, metaslab, CTLFLAG_RW, 0, "ZFS metaslab");
	+SYSCTL_NODE(_vfs_zfs, OID_AUTO, metaslab, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "ZFS metaslab");

	#define GANG_ALLOCATION(flags) \
	((flags) & (METASLAB_GANG_CHILD \| METASLAB_GANG_HEADER))
	Index: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/trim_map.c
	===================================================================
	--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/trim_map.c
	+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/trim_map.c
	@@ -82,7 +82,8 @@
	static u_int trim_vdev_max_pending = 10000; /* Keep up to 10K segments */

	SYSCTL_DECL(_vfs_zfs);
	-SYSCTL_NODE(_vfs_zfs, OID_AUTO, trim, CTLFLAG_RD, 0, "ZFS TRIM");
	+SYSCTL_NODE(_vfs_zfs, OID_AUTO, trim, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "ZFS TRIM");

	SYSCTL_UINT(_vfs_zfs_trim, OID_AUTO, txg_delay, CTLFLAG_RWTUN, &trim_txg_delay,
	0, "Delay TRIMs by up to this many TXGs");
	Index: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/txg.c
	===================================================================
	--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/txg.c
	+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/txg.c
	@@ -112,7 +112,8 @@
	int zfs_txg_timeout = 5; /* max seconds worth of delta per txg */

	SYSCTL_DECL(_vfs_zfs);
	-SYSCTL_NODE(_vfs_zfs, OID_AUTO, txg, CTLFLAG_RW, 0, "ZFS TXG");
	+SYSCTL_NODE(_vfs_zfs, OID_AUTO, txg, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "ZFS TXG");
	SYSCTL_INT(_vfs_zfs_txg, OID_AUTO, timeout, CTLFLAG_RWTUN, &zfs_txg_timeout, 0,
	"Maximum seconds worth of delta per txg");

	Index: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c
	===================================================================
	--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c
	+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c
	@@ -55,7 +55,8 @@
	#include <sys/vdev_initialize.h>

	SYSCTL_DECL(_vfs_zfs);
	-SYSCTL_NODE(_vfs_zfs, OID_AUTO, vdev, CTLFLAG_RW, 0, "ZFS VDEV");
	+SYSCTL_NODE(_vfs_zfs, OID_AUTO, vdev, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "ZFS VDEV");

	/*
	* Virtual device management.
	Index: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_cache.c
	===================================================================
	--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_cache.c
	+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_cache.c
	@@ -90,7 +90,8 @@
	#define VCBS (1 << zfs_vdev_cache_bshift) /* 64KB */

	SYSCTL_DECL(_vfs_zfs_vdev);
	-SYSCTL_NODE(_vfs_zfs_vdev, OID_AUTO, cache, CTLFLAG_RW, 0, "ZFS VDEV Cache");
	+SYSCTL_NODE(_vfs_zfs_vdev, OID_AUTO, cache, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "ZFS VDEV Cache");
	SYSCTL_INT(_vfs_zfs_vdev_cache, OID_AUTO, max, CTLFLAG_RDTUN,
	&zfs_vdev_cache_max, 0, "Maximum I/O request size that increase read size");
	SYSCTL_INT(_vfs_zfs_vdev_cache, OID_AUTO, size, CTLFLAG_RDTUN,
	Index: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_mirror.c
	===================================================================
	--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_mirror.c
	+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_mirror.c
	@@ -64,7 +64,8 @@

	#ifdef _KERNEL
	SYSCTL_DECL(_vfs_zfs_vdev);
	-static SYSCTL_NODE(_vfs_zfs_vdev, OID_AUTO, mirror, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_vfs_zfs_vdev, OID_AUTO, mirror,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"ZFS VDEV Mirror");
	#endif

	Index: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c
	===================================================================
	--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c
	+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c
	@@ -71,7 +71,8 @@
	struct mtx zfs_debug_mtx;
	MTX_SYSINIT(zfs_debug_mtx, &zfs_debug_mtx, "zfs_debug", MTX_DEF);

	-SYSCTL_NODE(_vfs, OID_AUTO, zfs, CTLFLAG_RW, 0, "ZFS file system");
	+SYSCTL_NODE(_vfs, OID_AUTO, zfs, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "ZFS file system");

	int zfs_super_owner;
	SYSCTL_INT(_vfs_zfs, OID_AUTO, super_owner, CTLFLAG_RW, &zfs_super_owner, 0,
	@@ -81,7 +82,8 @@
	SYSCTL_INT(_vfs_zfs, OID_AUTO, debug, CTLFLAG_RWTUN, &zfs_debug_level, 0,
	"Debug level");

	-SYSCTL_NODE(_vfs_zfs, OID_AUTO, version, CTLFLAG_RD, 0, "ZFS versions");
	+SYSCTL_NODE(_vfs_zfs, OID_AUTO, version, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "ZFS versions");
	static int zfs_version_acl = ZFS_ACL_VERSION;
	SYSCTL_INT(_vfs_zfs_version, OID_AUTO, acl, CTLFLAG_RD, &zfs_version_acl, 0,
	"ZFS_ACL_VERSION");
	Index: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c
	===================================================================
	--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c
	+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c
	@@ -48,7 +48,8 @@
	#include <sys/cityhash.h>

	SYSCTL_DECL(_vfs_zfs);
	-SYSCTL_NODE(_vfs_zfs, OID_AUTO, zio, CTLFLAG_RW, 0, "ZFS ZIO");
	+SYSCTL_NODE(_vfs_zfs, OID_AUTO, zio, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "ZFS ZIO");
	#if defined(__amd64__)
	static int zio_use_uma = 1;
	#else
	Index: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c
	===================================================================
	--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c
	+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c
	@@ -133,7 +133,8 @@

	#ifndef illumos
	SYSCTL_DECL(_vfs_zfs);
	-SYSCTL_NODE(_vfs_zfs, OID_AUTO, vol, CTLFLAG_RW, 0, "ZFS VOLUME");
	+SYSCTL_NODE(_vfs_zfs, OID_AUTO, vol, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "ZFS VOLUME");
	static int volmode = ZFS_VOLMODE_GEOM;
	SYSCTL_INT(_vfs_zfs_vol, OID_AUTO, mode, CTLFLAG_RWTUN, &volmode, 0,
	"Expose as GEOM providers (1), device files (2) or neither");
	Index: head/sys/cddl/dev/dtrace/dtrace_sysctl.c
	===================================================================
	--- head/sys/cddl/dev/dtrace/dtrace_sysctl.c
	+++ head/sys/cddl/dev/dtrace/dtrace_sysctl.c
	@@ -73,13 +73,15 @@
	return (error);
	}

	-SYSCTL_NODE(_debug, OID_AUTO, dtrace, CTLFLAG_RD, 0, "DTrace debug parameters");
	+SYSCTL_NODE(_debug, OID_AUTO, dtrace, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "DTrace debug parameters");

	SYSCTL_PROC(_debug_dtrace, OID_AUTO, providers,
	CTLTYPE_STRING \| CTLFLAG_MPSAFE \| CTLFLAG_RD, 0, 0, sysctl_dtrace_providers,
	"A", "available DTrace providers");

	-SYSCTL_NODE(_kern, OID_AUTO, dtrace, CTLFLAG_RD, 0, "DTrace parameters");
	+SYSCTL_NODE(_kern, OID_AUTO, dtrace, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "DTrace parameters");

	SYSCTL_INT(_kern_dtrace, OID_AUTO, err_verbose, CTLFLAG_RW,
	&dtrace_err_verbose, 0,
	Index: head/sys/cddl/dev/dtrace/dtrace_test.c
	===================================================================
	--- head/sys/cddl/dev/dtrace/dtrace_test.c
	+++ head/sys/cddl/dev/dtrace/dtrace_test.c
	@@ -75,7 +75,9 @@
	return (error);
	}

	-static SYSCTL_NODE(_debug, OID_AUTO, dtracetest, CTLFLAG_RD, 0, "");
	+static SYSCTL_NODE(_debug, OID_AUTO, dtracetest,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "");

	SYSCTL_PROC(_debug_dtracetest, OID_AUTO, sdttest,
	CTLTYPE_INT \| CTLFLAG_MPSAFE \| CTLFLAG_RW, NULL, 0, dtrace_test_sdttest,
	Index: head/sys/cddl/dev/profile/profile.c
	===================================================================
	--- head/sys/cddl/dev/profile/profile.c
	+++ head/sys/cddl/dev/profile/profile.c
	@@ -239,7 +239,8 @@
	static int profile_aframes = PROF_ARTIFICIAL_FRAMES;

	SYSCTL_DECL(_kern_dtrace);
	-SYSCTL_NODE(_kern_dtrace, OID_AUTO, profile, CTLFLAG_RD, 0, "DTrace profile parameters");
	+SYSCTL_NODE(_kern_dtrace, OID_AUTO, profile, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "DTrace profile parameters");
	SYSCTL_INT(_kern_dtrace_profile, OID_AUTO, aframes, CTLFLAG_RW, &profile_aframes,
	0, "Skipped frames for profile provider");

	Index: head/sys/compat/ia32/ia32_sysvec.c
	===================================================================
	--- head/sys/compat/ia32/ia32_sysvec.c
	+++ head/sys/compat/ia32/ia32_sysvec.c
	@@ -86,7 +86,8 @@

	extern const char *freebsd32_syscallnames[];

	-static SYSCTL_NODE(_compat, OID_AUTO, ia32, CTLFLAG_RW, 0, "ia32 mode");
	+static SYSCTL_NODE(_compat, OID_AUTO, ia32, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "ia32 mode");

	static u_long ia32_maxdsiz = IA32_MAXDSIZ;
	SYSCTL_ULONG(_compat_ia32, OID_AUTO, maxdsiz, CTLFLAG_RWTUN, &ia32_maxdsiz, 0, "");
	Index: head/sys/compat/linux/linux_mib.c
	===================================================================
	--- head/sys/compat/linux/linux_mib.c
	+++ head/sys/compat/linux/linux_mib.c
	@@ -60,7 +60,8 @@

	static unsigned linux_osd_jail_slot;

	-SYSCTL_NODE(_compat, OID_AUTO, linux, CTLFLAG_RW, 0, "Linux mode");
	+SYSCTL_NODE(_compat, OID_AUTO, linux, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Linux mode");

	int linux_ignore_ip_recverr = 1;
	SYSCTL_INT(_compat_linux, OID_AUTO, ignore_ip_recverr, CTLFLAG_RWTUN,
	Index: head/sys/compat/ndis/subr_ntoskrnl.c
	===================================================================
	--- head/sys/compat/ndis/subr_ntoskrnl.c
	+++ head/sys/compat/ndis/subr_ntoskrnl.c
	@@ -82,8 +82,9 @@
	#ifdef NTOSKRNL_DEBUG_TIMERS
	static int sysctl_show_timers(SYSCTL_HANDLER_ARGS);

	-SYSCTL_PROC(_debug, OID_AUTO, ntoskrnl_timers, CTLTYPE_INT \| CTLFLAG_RW,
	- NULL, 0, sysctl_show_timers, "I",
	+SYSCTL_PROC(_debug, OID_AUTO, ntoskrnl_timers,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ sysctl_show_timers, "I",
	"Show ntoskrnl timer stats");
	#endif

	Index: head/sys/compat/x86bios/x86bios.c
	===================================================================
	--- head/sys/compat/x86bios/x86bios.c
	+++ head/sys/compat/x86bios/x86bios.c
	@@ -67,7 +67,7 @@

	static struct mtx x86bios_lock;

	-static SYSCTL_NODE(_debug, OID_AUTO, x86bios, CTLFLAG_RD, NULL,
	+static SYSCTL_NODE(_debug, OID_AUTO, x86bios, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"x86bios debugging");
	static int x86bios_trace_call;
	SYSCTL_INT(_debug_x86bios, OID_AUTO, call, CTLFLAG_RWTUN, &x86bios_trace_call, 0,
	Index: head/sys/contrib/rdma/krping/krping_dev.c
	===================================================================
	--- head/sys/contrib/rdma/krping/krping_dev.c
	+++ head/sys/contrib/rdma/krping/krping_dev.c
	@@ -30,7 +30,8 @@

	#define BUFFERSIZE 512

	-SYSCTL_NODE(_dev, OID_AUTO, krping, CTLFLAG_RW, 0, "kernel rping module");
	+SYSCTL_NODE(_dev, OID_AUTO, krping, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "kernel rping module");

	int krping_debug = 0;
	SYSCTL_INT(_dev_krping, OID_AUTO, debug, CTLFLAG_RW, &krping_debug, 0 , "");
	Index: head/sys/crypto/ccp/ccp_hardware.c
	===================================================================
	--- head/sys/crypto/ccp/ccp_hardware.c
	+++ head/sys/crypto/ccp/ccp_hardware.c
	@@ -80,7 +80,8 @@
	{ CCP_XTS_AES_UNIT_SIZE_4096, 4096 },
	};

	-SYSCTL_NODE(_hw, OID_AUTO, ccp, CTLFLAG_RD, 0, "ccp node");
	+SYSCTL_NODE(_hw, OID_AUTO, ccp, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "ccp node");

	unsigned g_ccp_ring_order = 11;
	SYSCTL_UINT(_hw_ccp, OID_AUTO, ring_order, CTLFLAG_RDTUN, &g_ccp_ring_order,
	Index: head/sys/ddb/db_capture.c
	===================================================================
	--- head/sys/ddb/db_capture.c
	+++ head/sys/ddb/db_capture.c
	@@ -82,7 +82,8 @@
	struct sx db_capture_sx; /* Lock against user thread races. */
	SX_SYSINIT(db_capture_sx, &db_capture_sx, "db_capture_sx");

	-static SYSCTL_NODE(_debug_ddb, OID_AUTO, capture, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_debug_ddb, OID_AUTO, capture,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"DDB capture options");

	SYSCTL_UINT(_debug_ddb_capture, OID_AUTO, bufoff, CTLFLAG_RD,
	@@ -165,8 +166,9 @@

	return (0);
	}
	-SYSCTL_PROC(_debug_ddb_capture, OID_AUTO, bufsize, CTLTYPE_UINT\|CTLFLAG_RW,
	- 0, 0, sysctl_debug_ddb_capture_bufsize, "IU",
	+SYSCTL_PROC(_debug_ddb_capture, OID_AUTO, bufsize,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, 0,
	+ sysctl_debug_ddb_capture_bufsize, "IU",
	"Size of DDB capture buffer");

	/*
	@@ -191,8 +193,10 @@
	ch = '\0';
	return (SYSCTL_OUT(req, &ch, sizeof(ch)));
	}
	-SYSCTL_PROC(_debug_ddb_capture, OID_AUTO, data, CTLTYPE_STRING \| CTLFLAG_RD,
	- NULL, 0, sysctl_debug_ddb_capture_data, "A", "DDB capture data");
	+SYSCTL_PROC(_debug_ddb_capture, OID_AUTO, data,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	+ sysctl_debug_ddb_capture_data, "A",
	+ "DDB capture data");

	/*
	* Routines for capturing DDB output into a fixed-size buffer. These are
	Index: head/sys/ddb/db_main.c
	===================================================================
	--- head/sys/ddb/db_main.c
	+++ head/sys/ddb/db_main.c
	@@ -48,7 +48,8 @@
	#include <ddb/db_command.h>
	#include <ddb/db_sym.h>

	-SYSCTL_NODE(_debug, OID_AUTO, ddb, CTLFLAG_RW, 0, "DDB settings");
	+SYSCTL_NODE(_debug, OID_AUTO, ddb, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "DDB settings");

	static dbbe_init_f db_init;
	static dbbe_trap_f db_trap;
	Index: head/sys/ddb/db_script.c
	===================================================================
	--- head/sys/ddb/db_script.c
	+++ head/sys/ddb/db_script.c
	@@ -462,7 +462,8 @@
	* like RPCs and a bit less like normal get/set requests. The ddb(8) command
	* line tool wraps them to make things a bit more user-friendly.
	*/
	-static SYSCTL_NODE(_debug_ddb, OID_AUTO, scripting, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_debug_ddb, OID_AUTO, scripting,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"DDB script settings");

	static int
	@@ -495,8 +496,9 @@
	free(buffer, M_TEMP);
	return (error);
	}
	-SYSCTL_PROC(_debug_ddb_scripting, OID_AUTO, scripts, CTLTYPE_STRING \|
	- CTLFLAG_RD, 0, 0, sysctl_debug_ddb_scripting_scripts, "A",
	+SYSCTL_PROC(_debug_ddb_scripting, OID_AUTO, scripts,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, 0,
	+ sysctl_debug_ddb_scripting_scripts, "A",
	"List of defined scripts");

	static int
	@@ -532,8 +534,9 @@
	free(buffer, M_TEMP);
	return (error);
	}
	-SYSCTL_PROC(_debug_ddb_scripting, OID_AUTO, script, CTLTYPE_STRING \|
	- CTLFLAG_RW, 0, 0, sysctl_debug_ddb_scripting_script, "A",
	+SYSCTL_PROC(_debug_ddb_scripting, OID_AUTO, script,
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, 0,
	+ sysctl_debug_ddb_scripting_script, "A",
	"Set a script");

	/*
	@@ -559,6 +562,7 @@
	return (EINVAL); /* Don't confuse sysctl consumers. */
	return (0);
	}
	-SYSCTL_PROC(_debug_ddb_scripting, OID_AUTO, unscript, CTLTYPE_STRING \|
	- CTLFLAG_RW, 0, 0, sysctl_debug_ddb_scripting_unscript, "A",
	+SYSCTL_PROC(_debug_ddb_scripting, OID_AUTO, unscript,
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, 0,
	+ sysctl_debug_ddb_scripting_unscript, "A",
	"Unset a script");
	Index: head/sys/ddb/db_textdump.c
	===================================================================
	--- head/sys/ddb/db_textdump.c
	+++ head/sys/ddb/db_textdump.c
	@@ -76,7 +76,8 @@
	#include <ddb/ddb.h>
	#include <ddb/db_lex.h>

	-static SYSCTL_NODE(_debug_ddb, OID_AUTO, textdump, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_debug_ddb, OID_AUTO, textdump,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"DDB textdump options");

	/*
	Index: head/sys/dev/aac/aac.c
	===================================================================
	--- head/sys/dev/aac/aac.c
	+++ head/sys/dev/aac/aac.c
	@@ -225,7 +225,8 @@
	static MALLOC_DEFINE(M_AACBUF, "aacbuf", "Buffers for the AAC driver");

	/* sysctl node */
	-SYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD, 0, "AAC driver parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "AAC driver parameters");

	/*
	* Device Interface
	Index: head/sys/dev/aacraid/aacraid.c
	===================================================================
	--- head/sys/dev/aacraid/aacraid.c
	+++ head/sys/dev/aacraid/aacraid.c
	@@ -224,7 +224,8 @@
	MALLOC_DEFINE(M_AACRAIDBUF, "aacraid_buf", "Buffers for the AACRAID driver");

	/* sysctl node */
	-SYSCTL_NODE(_hw, OID_AUTO, aacraid, CTLFLAG_RD, 0, "AACRAID driver parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, aacraid, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "AACRAID driver parameters");

	/*
	* Device Interface
	Index: head/sys/dev/acpi_support/acpi_asus.c
	===================================================================
	--- head/sys/dev/acpi_support/acpi_asus.c
	+++ head/sys/dev/acpi_support/acpi_asus.c
	@@ -731,7 +731,7 @@
	sysctl_ctx_init(&sc->sysctl_ctx);
	sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
	SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree),
	- OID_AUTO, "asus", CTLFLAG_RD, 0, "");
	+ OID_AUTO, "asus", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");

	/* Hook up nodes */
	for (int i = 0; acpi_asus_sysctls[i].name != NULL; i++) {
	@@ -742,14 +742,14 @@
	SYSCTL_ADD_PROC(&sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
	acpi_asus_sysctls[i].name,
	- CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY,
	- sc, i, acpi_asus_sysctl, "I",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \|
	+ CTLFLAG_NEEDGIANT, sc, i, acpi_asus_sysctl, "I",
	acpi_asus_sysctls[i].description);
	} else {
	SYSCTL_ADD_PROC(&sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
	acpi_asus_sysctls[i].name,
	- CTLTYPE_INT \| CTLFLAG_RW,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	sc, i, acpi_asus_sysctl, "I",
	acpi_asus_sysctls[i].description);
	}
	Index: head/sys/dev/acpi_support/acpi_asus_wmi.c
	===================================================================
	--- head/sys/dev/acpi_support/acpi_asus_wmi.c
	+++ head/sys/dev/acpi_support/acpi_asus_wmi.c
	@@ -429,14 +429,14 @@
	SYSCTL_ADD_PROC(sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
	acpi_asus_wmi_sysctls[i].name,
	- CTLTYPE_INT \| CTLFLAG_RD,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	sc, i, acpi_asus_wmi_sysctl, "I",
	acpi_asus_wmi_sysctls[i].description);
	} else {
	SYSCTL_ADD_PROC(sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
	acpi_asus_wmi_sysctls[i].name,
	- CTLTYPE_INT \| CTLFLAG_RW,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	sc, i, acpi_asus_wmi_sysctl, "I",
	acpi_asus_wmi_sysctls[i].description);
	}
	Index: head/sys/dev/acpi_support/acpi_fujitsu.c
	===================================================================
	--- head/sys/dev/acpi_support/acpi_fujitsu.c
	+++ head/sys/dev/acpi_support/acpi_fujitsu.c
	@@ -385,7 +385,7 @@
	sysctl_ctx_init(&sc->sysctl_ctx);
	sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
	SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree),
	- OID_AUTO, "fujitsu", CTLFLAG_RD, 0, "");
	+ OID_AUTO, "fujitsu", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");

	for (i = 0; sysctl_table[i].name != NULL; i++) {
	switch(sysctl_table[i].method) {
	@@ -418,8 +418,8 @@
	SYSCTL_ADD_PROC(&sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
	sysctl_table[i].name,
	- CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY,
	- sc, i, acpi_fujitsu_sysctl, "I",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \|
	+ CTLFLAG_NEEDGIANT, sc, i, acpi_fujitsu_sysctl, "I",
	sysctl_table[i].description);
	}

	Index: head/sys/dev/acpi_support/acpi_hp.c
	===================================================================
	--- head/sys/dev/acpi_support/acpi_hp.c
	+++ head/sys/dev/acpi_support/acpi_hp.c
	@@ -593,13 +593,15 @@
	if (acpi_hp_sysctls[i].flag_rdonly != 0) {
	SYSCTL_ADD_PROC(sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
	- acpi_hp_sysctls[i].name, CTLTYPE_INT \| CTLFLAG_RD,
	+ acpi_hp_sysctls[i].name,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	sc, i, acpi_hp_sysctl, "I",
	acpi_hp_sysctls[i].description);
	} else {
	SYSCTL_ADD_PROC(sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
	- acpi_hp_sysctls[i].name, CTLTYPE_INT \| CTLFLAG_RW,
	+ acpi_hp_sysctls[i].name,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	sc, i, acpi_hp_sysctl, "I",
	acpi_hp_sysctls[i].description);
	}
	Index: head/sys/dev/acpi_support/acpi_ibm.c
	===================================================================
	--- head/sys/dev/acpi_support/acpi_ibm.c
	+++ head/sys/dev/acpi_support/acpi_ibm.c
	@@ -543,13 +543,15 @@
	if (acpi_ibm_sysctls[i].flag_rdonly != 0) {
	SYSCTL_ADD_PROC(sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
	- acpi_ibm_sysctls[i].name, CTLTYPE_INT \| CTLFLAG_RD,
	+ acpi_ibm_sysctls[i].name,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	sc, i, acpi_ibm_sysctl, "I",
	acpi_ibm_sysctls[i].description);
	} else {
	SYSCTL_ADD_PROC(sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
	- acpi_ibm_sysctls[i].name, CTLTYPE_INT \| CTLFLAG_RW,
	+ acpi_ibm_sysctls[i].name,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	sc, i, acpi_ibm_sysctl, "I",
	acpi_ibm_sysctls[i].description);
	}
	@@ -559,15 +561,15 @@
	if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_THERMAL)) {
	SYSCTL_ADD_PROC(sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, "thermal",
	- CTLTYPE_INT \| CTLFLAG_RD, sc, 0, acpi_ibm_thermal_sysctl,
	- "I", "Thermal zones");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	+ acpi_ibm_thermal_sysctl, "I", "Thermal zones");
	}

	/* Hook up handlerevents node */
	if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_HANDLEREVENTS)) {
	SYSCTL_ADD_PROC(sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, "handlerevents",
	- CTLTYPE_STRING \| CTLFLAG_RW, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	acpi_ibm_handlerevents_sysctl, "I",
	"devd(8) events handled by acpi_ibm");
	}
	Index: head/sys/dev/acpi_support/acpi_panasonic.c
	===================================================================
	--- head/sys/dev/acpi_support/acpi_panasonic.c
	+++ head/sys/dev/acpi_support/acpi_panasonic.c
	@@ -168,13 +168,13 @@
	sysctl_ctx_init(&sc->sysctl_ctx);
	sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
	SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO,
	- "panasonic", CTLFLAG_RD, 0, "");
	+ "panasonic", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");
	for (i = 0; sysctl_table[i].name != NULL; i++) {
	SYSCTL_ADD_PROC(&sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
	sysctl_table[i].name,
	- CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY,
	- sc, i, acpi_panasonic_sysctl, "I", "");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \|
	+ CTLFLAG_NEEDGIANT, sc, i, acpi_panasonic_sysctl, "I", "");
	}

	#if 0
	Index: head/sys/dev/acpi_support/acpi_rapidstart.c
	===================================================================
	--- head/sys/dev/acpi_support/acpi_rapidstart.c
	+++ head/sys/dev/acpi_support/acpi_rapidstart.c
	@@ -90,14 +90,14 @@
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	i, acpi_rapidstart_oids[i].nodename,
	- CTLTYPE_INT \| CTLFLAG_RW,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	dev, i, sysctl_acpi_rapidstart_gen_handler, "I",
	acpi_rapidstart_oids[i].comment);
	} else {
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	i, acpi_rapidstart_oids[i].nodename,
	- CTLTYPE_INT \| CTLFLAG_RD,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, i, sysctl_acpi_rapidstart_gen_handler, "I",
	acpi_rapidstart_oids[i].comment);
	}
	Index: head/sys/dev/acpi_support/acpi_sony.c
	===================================================================
	--- head/sys/dev/acpi_support/acpi_sony.c
	+++ head/sys/dev/acpi_support/acpi_sony.c
	@@ -137,14 +137,14 @@
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	i, acpi_sony_oids[i].nodename ,
	- CTLTYPE_INT \| CTLFLAG_RW,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	dev, i, sysctl_acpi_sony_gen_handler, "I",
	acpi_sony_oids[i].comment);
	} else {
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	i, acpi_sony_oids[i].nodename ,
	- CTLTYPE_INT \| CTLFLAG_RD,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, i, sysctl_acpi_sony_gen_handler, "I",
	acpi_sony_oids[i].comment);
	}
	Index: head/sys/dev/acpi_support/acpi_toshiba.c
	===================================================================
	--- head/sys/dev/acpi_support/acpi_toshiba.c
	+++ head/sys/dev/acpi_support/acpi_toshiba.c
	@@ -247,14 +247,14 @@
	sysctl_ctx_init(&sc->sysctl_ctx);
	sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
	SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO,
	- "toshiba", CTLFLAG_RD, 0, "");
	+ "toshiba", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");

	for (i = 0; sysctl_table[i].name != NULL; i++) {
	SYSCTL_ADD_PROC(&sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
	sysctl_table[i].name,
	- CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY,
	- sc, i, acpi_toshiba_sysctl, "I", "");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \|
	+ CTLFLAG_NEEDGIANT, sc, i, acpi_toshiba_sysctl, "I", "");
	}

	if (enable_fn_keys != 0) {
	Index: head/sys/dev/acpi_support/atk0110.c
	===================================================================
	--- head/sys/dev/acpi_support/atk0110.c
	+++ head/sys/dev/acpi_support/atk0110.c
	@@ -234,7 +234,7 @@
	#endif
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(sc->sc_dev),
	SYSCTL_CHILDREN(so), idx, sysctl_name,
	- CTLTYPE_INT \| CTLFLAG_RD, sc, (uintptr_t)sensor,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, (uintptr_t)sensor,
	sc->sc_ggrp_method ? aibs_sysctl_ggrp : aibs_sysctl,
	sensor->t == AIBS_SENS_TYPE_TEMP ? "IK" : "I", descr);
	}
	@@ -319,7 +319,8 @@
	/* sysctl subtree for sensors of this type */
	*so = SYSCTL_ADD_NODE(device_get_sysctl_ctx(sc->sc_dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(sc->sc_dev)),
	- sensor->t, name, CTLFLAG_RD, NULL, NULL);
	+ sensor->t, name, CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ NULL, NULL);
	}
	aibs_sensor_added(sc, so, name, s_idx, sensor, descr);
	*s_idx += 1;
	@@ -415,7 +416,7 @@
	/* sysctl subtree for sensors of this type */
	*so = SYSCTL_ADD_NODE(device_get_sysctl_ctx(sc->sc_dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(sc->sc_dev)), st,
	- node, CTLFLAG_RD, NULL, NULL);
	+ node, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, NULL);

	for (i = 0, o++; i < n; i++, o++) {
	const char *descr;
	Index: head/sys/dev/acpica/acpi.c
	===================================================================
	--- head/sys/dev/acpica/acpi.c
	+++ head/sys/dev/acpica/acpi.c
	@@ -251,7 +251,8 @@
	/* Holds the description of the acpi0 device. */
	static char acpi_desc[ACPI_OEM_ID_SIZE + ACPI_OEM_TABLE_ID_SIZE + 2];

	-SYSCTL_NODE(_debug, OID_AUTO, acpi, CTLFLAG_RD, NULL, "ACPI debugging");
	+SYSCTL_NODE(_debug, OID_AUTO, acpi, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "ACPI debugging");
	static char acpi_ca_version[12];
	SYSCTL_STRING(_debug_acpi, OID_AUTO, acpi_ca_version, CTLFLAG_RD,
	acpi_ca_version, 0, "Version of Intel ACPI-CA");
	@@ -270,7 +271,8 @@
	static int acpi_debug_objects;
	TUNABLE_INT("debug.acpi.enable_debug_objects", &acpi_debug_objects);
	SYSCTL_PROC(_debug_acpi, OID_AUTO, enable_debug_objects,
	- CTLFLAG_RW \| CTLTYPE_INT, NULL, 0, acpi_debug_objects_sysctl, "I",
	+ CTLFLAG_RW \| CTLTYPE_INT \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ acpi_debug_objects_sysctl, "I",
	"Enable Debug objects");

	/* Allow the interpreter to ignore common mistakes in BIOS. */
	@@ -551,29 +553,35 @@
	*/
	sysctl_ctx_init(&sc->acpi_sysctl_ctx);
	sc->acpi_sysctl_tree = SYSCTL_ADD_NODE(&sc->acpi_sysctl_ctx,
	- SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
	- device_get_name(dev), CTLFLAG_RD, 0, "");
	+ SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO, device_get_name(dev),
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");
	SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
	- OID_AUTO, "supported_sleep_state", CTLTYPE_STRING \| CTLFLAG_RD,
	+ OID_AUTO, "supported_sleep_state",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	0, 0, acpi_supported_sleep_state_sysctl, "A",
	"List supported ACPI sleep states.");
	SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
	- OID_AUTO, "power_button_state", CTLTYPE_STRING \| CTLFLAG_RW,
	+ OID_AUTO, "power_button_state",
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&sc->acpi_power_button_sx, 0, acpi_sleep_state_sysctl, "A",
	"Power button ACPI sleep state.");
	SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
	- OID_AUTO, "sleep_button_state", CTLTYPE_STRING \| CTLFLAG_RW,
	+ OID_AUTO, "sleep_button_state",
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&sc->acpi_sleep_button_sx, 0, acpi_sleep_state_sysctl, "A",
	"Sleep button ACPI sleep state.");
	SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
	- OID_AUTO, "lid_switch_state", CTLTYPE_STRING \| CTLFLAG_RW,
	+ OID_AUTO, "lid_switch_state",
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&sc->acpi_lid_switch_sx, 0, acpi_sleep_state_sysctl, "A",
	"Lid ACPI sleep state. Set to S3 if you want to suspend your laptop when close the Lid.");
	SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
	- OID_AUTO, "standby_state", CTLTYPE_STRING \| CTLFLAG_RW,
	+ OID_AUTO, "standby_state",
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&sc->acpi_standby_sx, 0, acpi_sleep_state_sysctl, "A", "");
	SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
	- OID_AUTO, "suspend_state", CTLTYPE_STRING \| CTLFLAG_RW,
	+ OID_AUTO, "suspend_state",
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&sc->acpi_suspend_sx, 0, acpi_sleep_state_sysctl, "A", "");
	SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
	OID_AUTO, "sleep_delay", CTLFLAG_RW, &sc->acpi_sleep_delay, 0,
	@@ -3353,7 +3361,7 @@
	if (ACPI_SUCCESS(status)) {
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(child),
	SYSCTL_CHILDREN(device_get_sysctl_tree(child)), OID_AUTO,
	- "wake", CTLTYPE_INT \| CTLFLAG_RW, child, 0,
	+ "wake", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, child, 0,
	acpi_wake_set_sysctl, "I", "Device set to wake the system");
	}
	}
	@@ -4126,10 +4134,14 @@
	return (error);
	}

	-SYSCTL_PROC(_debug_acpi, OID_AUTO, layer, CTLFLAG_RW \| CTLTYPE_STRING,
	- "debug.acpi.layer", 0, acpi_debug_sysctl, "A", "");
	-SYSCTL_PROC(_debug_acpi, OID_AUTO, level, CTLFLAG_RW \| CTLTYPE_STRING,
	- "debug.acpi.level", 0, acpi_debug_sysctl, "A", "");
	+SYSCTL_PROC(_debug_acpi, OID_AUTO, layer,
	+ CTLFLAG_RW \| CTLTYPE_STRING \| CTLFLAG_NEEDGIANT, "debug.acpi.layer", 0,
	+ acpi_debug_sysctl, "A",
	+ "");
	+SYSCTL_PROC(_debug_acpi, OID_AUTO, level,
	+ CTLFLAG_RW \| CTLTYPE_STRING \| CTLFLAG_NEEDGIANT, "debug.acpi.level", 0,
	+ acpi_debug_sysctl, "A",
	+ "");
	#endif /* ACPI_DEBUG */

	static int
	Index: head/sys/dev/acpica/acpi_acad.c
	===================================================================
	--- head/sys/dev/acpica/acpi_acad.c
	+++ head/sys/dev/acpica/acpi_acad.c
	@@ -170,9 +170,9 @@
	if (device_get_unit(dev) == 0) {
	acpi_sc = acpi_device_get_parent_softc(dev);
	SYSCTL_ADD_PROC(&acpi_sc->acpi_sysctl_ctx,
	- SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree),
	- OID_AUTO, "acline", CTLTYPE_INT \| CTLFLAG_RD,
	- &sc->status, 0, acpi_acad_sysctl, "I", "");
	+ SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO, "acline",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &sc->status, 0,
	+ acpi_acad_sysctl, "I", "");
	}

	/* Get initial status after whole system is up. */
	Index: head/sys/dev/acpica/acpi_battery.c
	===================================================================
	--- head/sys/dev/acpica/acpi_battery.c
	+++ head/sys/dev/acpica/acpi_battery.c
	@@ -490,31 +490,31 @@

	sysctl_ctx_init(&acpi_battery_sysctl_ctx);
	acpi_battery_sysctl_tree = SYSCTL_ADD_NODE(&acpi_battery_sysctl_ctx,
	- SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO, "battery", CTLFLAG_RD,
	- 0, "battery status and info");
	+ SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO, "battery",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "battery status and info");
	SYSCTL_ADD_PROC(&acpi_battery_sysctl_ctx,
	SYSCTL_CHILDREN(acpi_battery_sysctl_tree),
	- OID_AUTO, "life", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "life", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	&acpi_battery_battinfo.cap, 0, acpi_battery_sysctl, "I",
	"percent capacity remaining");
	SYSCTL_ADD_PROC(&acpi_battery_sysctl_ctx,
	SYSCTL_CHILDREN(acpi_battery_sysctl_tree),
	- OID_AUTO, "time", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "time", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	&acpi_battery_battinfo.min, 0, acpi_battery_sysctl, "I",
	"remaining time in minutes");
	SYSCTL_ADD_PROC(&acpi_battery_sysctl_ctx,
	SYSCTL_CHILDREN(acpi_battery_sysctl_tree),
	- OID_AUTO, "rate", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "rate", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	&acpi_battery_battinfo.rate, 0, acpi_battery_sysctl, "I",
	"present rate in mW");
	SYSCTL_ADD_PROC(&acpi_battery_sysctl_ctx,
	SYSCTL_CHILDREN(acpi_battery_sysctl_tree),
	- OID_AUTO, "state", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "state", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	&acpi_battery_battinfo.state, 0, acpi_battery_sysctl, "I",
	"current status flags");
	SYSCTL_ADD_PROC(&acpi_battery_sysctl_ctx,
	SYSCTL_CHILDREN(acpi_battery_sysctl_tree),
	- OID_AUTO, "units", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "units", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	NULL, 0, acpi_battery_units_sysctl, "I", "number of batteries");
	SYSCTL_ADD_INT(&acpi_battery_sysctl_ctx,
	SYSCTL_CHILDREN(acpi_battery_sysctl_tree),
	Index: head/sys/dev/acpica/acpi_cpu.c
	===================================================================
	--- head/sys/dev/acpica/acpi_cpu.c
	+++ head/sys/dev/acpica/acpi_cpu.c
	@@ -391,7 +391,7 @@
	sysctl_ctx_init(&cpu_sysctl_ctx);
	cpu_sysctl_tree = SYSCTL_ADD_NODE(&cpu_sysctl_ctx,
	SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO, "cpu",
	- CTLFLAG_RD, 0, "node for CPU children");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "node for CPU children");
	}

	/*
	@@ -1023,7 +1023,7 @@

	/* Add a sysctl handler to handle global Cx lowest setting */
	SYSCTL_ADD_PROC(&cpu_sysctl_ctx, SYSCTL_CHILDREN(cpu_sysctl_tree),
	- OID_AUTO, "cx_lowest", CTLTYPE_STRING \| CTLFLAG_RW,
	+ OID_AUTO, "cx_lowest", CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	NULL, 0, acpi_cpu_global_cx_lowest_sysctl, "A",
	"Global lowest Cx sleep state to use");

	@@ -1067,26 +1067,25 @@
	sc->cpu_cx_supported, 0,
	"Cx/microsecond values for supported Cx states");
	SYSCTL_ADD_PROC(&sc->cpu_sysctl_ctx,
	- SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)),
	- OID_AUTO, "cx_lowest", CTLTYPE_STRING \| CTLFLAG_RW,
	- (void *)sc, 0, acpi_cpu_cx_lowest_sysctl, "A",
	- "lowest Cx sleep state to use");
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)), OID_AUTO,
	+ "cx_lowest", CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ (void *)sc, 0, acpi_cpu_cx_lowest_sysctl, "A",
	+ "lowest Cx sleep state to use");
	SYSCTL_ADD_PROC(&sc->cpu_sysctl_ctx,
	- SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)),
	- OID_AUTO, "cx_usage", CTLTYPE_STRING \| CTLFLAG_RD,
	- (void *)sc, 0, acpi_cpu_usage_sysctl, "A",
	- "percent usage for each Cx state");
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)), OID_AUTO,
	+ "cx_usage", CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ (void *)sc, 0, acpi_cpu_usage_sysctl, "A",
	+ "percent usage for each Cx state");
	SYSCTL_ADD_PROC(&sc->cpu_sysctl_ctx,
	- SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)),
	- OID_AUTO, "cx_usage_counters", CTLTYPE_STRING \| CTLFLAG_RD,
	- (void *)sc, 0, acpi_cpu_usage_counters_sysctl, "A",
	- "Cx sleep state counters");
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)), OID_AUTO,
	+ "cx_usage_counters", CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ (void *)sc, 0, acpi_cpu_usage_counters_sysctl, "A",
	+ "Cx sleep state counters");
	#if defined(__i386__) \|\| defined(__amd64__)
	SYSCTL_ADD_PROC(&sc->cpu_sysctl_ctx,
	- SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)),
	- OID_AUTO, "cx_method", CTLTYPE_STRING \| CTLFLAG_RD,
	- (void *)sc, 0, acpi_cpu_method_sysctl, "A",
	- "Cx entrance methods");
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)), OID_AUTO,
	+ "cx_method", CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ (void *)sc, 0, acpi_cpu_method_sysctl, "A", "Cx entrance methods");
	#endif

	/* Signal platform that we can handle _CST notification. */
	Index: head/sys/dev/acpica/acpi_dock.c
	===================================================================
	--- head/sys/dev/acpica/acpi_dock.c
	+++ head/sys/dev/acpica/acpi_dock.c
	@@ -515,7 +515,7 @@
	SYSCTL_ADD_PROC(sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree),
	OID_AUTO, "status",
	- CTLTYPE_INT\|CTLFLAG_RW, dev, 0,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, dev, 0,
	acpi_dock_status_sysctl, "I",
	"Dock/Undock operation");

	Index: head/sys/dev/acpica/acpi_ec.c
	===================================================================
	--- head/sys/dev/acpica/acpi_ec.c
	+++ head/sys/dev/acpica/acpi_ec.c
	@@ -179,7 +179,9 @@

	ACPI_SERIAL_DECL(ec, "ACPI embedded controller");

	-static SYSCTL_NODE(_debug_acpi, OID_AUTO, ec, CTLFLAG_RD, NULL, "EC debugging");
	+static SYSCTL_NODE(_debug_acpi, OID_AUTO, ec,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "EC debugging");

	static int ec_burst_mode;
	SYSCTL_INT(_debug_acpi_ec, OID_AUTO, burst, CTLFLAG_RWTUN, &ec_burst_mode, 0,
	Index: head/sys/dev/acpica/acpi_smbat.c
	===================================================================
	--- head/sys/dev/acpica/acpi_smbat.c
	+++ head/sys/dev/acpica/acpi_smbat.c
	@@ -62,7 +62,8 @@

	ACPI_SERIAL_DECL(smbat, "ACPI Smart Battery");

	-static SYSCTL_NODE(_debug_acpi, OID_AUTO, batt, CTLFLAG_RD, NULL,
	+static SYSCTL_NODE(_debug_acpi, OID_AUTO, batt,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"Battery debugging");

	/* On some laptops with smart batteries, enabling battery monitoring
	Index: head/sys/dev/acpica/acpi_thermal.c
	===================================================================
	--- head/sys/dev/acpica/acpi_thermal.c
	+++ head/sys/dev/acpica/acpi_thermal.c
	@@ -241,8 +241,8 @@
	acpi_sc = acpi_device_get_parent_softc(dev);
	sysctl_ctx_init(&acpi_tz_sysctl_ctx);
	acpi_tz_sysctl_tree = SYSCTL_ADD_NODE(&acpi_tz_sysctl_ctx,
	- SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree),
	- OID_AUTO, "thermal", CTLFLAG_RD, 0, "");
	+ SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO, "thermal",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");
	SYSCTL_ADD_INT(&acpi_tz_sysctl_ctx,
	SYSCTL_CHILDREN(acpi_tz_sysctl_tree),
	OID_AUTO, "min_runtime", CTLFLAG_RW,
	@@ -260,56 +260,52 @@
	sysctl_ctx_init(&sc->tz_sysctl_ctx);
	sprintf(oidname, "tz%d", device_get_unit(dev));
	sc->tz_sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&sc->tz_sysctl_ctx,
	- SYSCTL_CHILDREN(acpi_tz_sysctl_tree),
	- OID_AUTO, oidname, CTLFLAG_RD, 0, "", "thermal_zone");
	+ SYSCTL_CHILDREN(acpi_tz_sysctl_tree), OID_AUTO, oidname,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "", "thermal_zone");
	SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
	- OID_AUTO, "temperature", CTLTYPE_INT \| CTLFLAG_RD,
	- &sc->tz_temperature, 0, sysctl_handle_int,
	- "IK", "current thermal zone temperature");
	+ OID_AUTO, "temperature", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ &sc->tz_temperature, 0, sysctl_handle_int, "IK",
	+ "current thermal zone temperature");
	SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
	- OID_AUTO, "active", CTLTYPE_INT \| CTLFLAG_RW,
	- sc, 0, acpi_tz_active_sysctl, "I", "cooling is active");
	+ OID_AUTO, "active", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc,
	+ 0, acpi_tz_active_sysctl, "I", "cooling is active");
	SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
	- OID_AUTO, "passive_cooling", CTLTYPE_INT \| CTLFLAG_RW,
	- sc, 0, acpi_tz_cooling_sysctl, "I",
	- "enable passive (speed reduction) cooling");
	+ OID_AUTO, "passive_cooling",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ acpi_tz_cooling_sysctl, "I",
	+ "enable passive (speed reduction) cooling");

	SYSCTL_ADD_INT(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
	OID_AUTO, "thermal_flags", CTLFLAG_RD,
	&sc->tz_thflags, 0, "thermal zone flags");
	SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
	- OID_AUTO, "_PSV", CTLTYPE_INT \| CTLFLAG_RW,
	- sc, offsetof(struct acpi_tz_softc, tz_zone.psv),
	- acpi_tz_temp_sysctl, "IK", "passive cooling temp setpoint");
	+ OID_AUTO, "_PSV", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc,
	+ offsetof(struct acpi_tz_softc, tz_zone.psv), acpi_tz_temp_sysctl, "IK",
	+ "passive cooling temp setpoint");
	SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
	- OID_AUTO, "_HOT", CTLTYPE_INT \| CTLFLAG_RW,
	- sc, offsetof(struct acpi_tz_softc, tz_zone.hot),
	- acpi_tz_temp_sysctl, "IK",
	- "too hot temp setpoint (suspend now)");
	+ OID_AUTO, "_HOT", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc,
	+ offsetof(struct acpi_tz_softc, tz_zone.hot), acpi_tz_temp_sysctl, "IK",
	+ "too hot temp setpoint (suspend now)");
	SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
	- OID_AUTO, "_CRT", CTLTYPE_INT \| CTLFLAG_RW,
	- sc, offsetof(struct acpi_tz_softc, tz_zone.crt),
	- acpi_tz_temp_sysctl, "IK",
	- "critical temp setpoint (shutdown now)");
	+ OID_AUTO, "_CRT", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc,
	+ offsetof(struct acpi_tz_softc, tz_zone.crt), acpi_tz_temp_sysctl, "IK",
	+ "critical temp setpoint (shutdown now)");
	SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
	- OID_AUTO, "_ACx", CTLTYPE_INT \| CTLFLAG_RD,
	- &sc->tz_zone.ac, sizeof(sc->tz_zone.ac),
	- sysctl_handle_opaque, "IK", "");
	+ OID_AUTO, "_ACx", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ &sc->tz_zone.ac, sizeof(sc->tz_zone.ac), sysctl_handle_opaque, "IK",
	+ "");
	SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
	- OID_AUTO, "_TC1", CTLTYPE_INT \| CTLFLAG_RW,
	- sc, offsetof(struct acpi_tz_softc, tz_zone.tc1),
	- acpi_tz_passive_sysctl, "I",
	- "thermal constant 1 for passive cooling");
	+ OID_AUTO, "_TC1", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc,
	+ offsetof(struct acpi_tz_softc, tz_zone.tc1), acpi_tz_passive_sysctl,
	+ "I", "thermal constant 1 for passive cooling");
	SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
	- OID_AUTO, "_TC2", CTLTYPE_INT \| CTLFLAG_RW,
	- sc, offsetof(struct acpi_tz_softc, tz_zone.tc2),
	- acpi_tz_passive_sysctl, "I",
	- "thermal constant 2 for passive cooling");
	+ OID_AUTO, "_TC2", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc,
	+ offsetof(struct acpi_tz_softc, tz_zone.tc2), acpi_tz_passive_sysctl,
	+ "I", "thermal constant 2 for passive cooling");
	SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
	- OID_AUTO, "_TSP", CTLTYPE_INT \| CTLFLAG_RW,
	- sc, offsetof(struct acpi_tz_softc, tz_zone.tsp),
	- acpi_tz_passive_sysctl, "I",
	- "thermal sampling period for passive cooling");
	+ OID_AUTO, "_TSP", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc,
	+ offsetof(struct acpi_tz_softc, tz_zone.tsp), acpi_tz_passive_sysctl,
	+ "I", "thermal sampling period for passive cooling");

	/*
	* Register our power profile event handler.
	Index: head/sys/dev/acpica/acpi_timer.c
	===================================================================
	--- head/sys/dev/acpica/acpi_timer.c
	+++ head/sys/dev/acpica/acpi_timer.c
	@@ -368,8 +368,10 @@
	return (error);
	}

	-SYSCTL_PROC(_machdep, OID_AUTO, acpi_timer_freq, CTLTYPE_INT \| CTLFLAG_RW,
	- 0, sizeof(u_int), acpi_timer_sysctl_freq, "I", "ACPI timer frequency");
	+SYSCTL_PROC(_machdep, OID_AUTO, acpi_timer_freq,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, sizeof(u_int),
	+ acpi_timer_sysctl_freq, "I",
	+ "ACPI timer frequency");

	/*
	* Some ACPI timers are known or believed to suffer from implementation
	Index: head/sys/dev/acpica/acpi_video.c
	===================================================================
	--- head/sys/dev/acpica/acpi_video.c
	+++ head/sys/dev/acpica/acpi_video.c
	@@ -254,9 +254,9 @@
	ACPI_SERIAL_BEGIN(video);
	if (acpi_video_sysctl_tree == NULL) {
	acpi_video_sysctl_tree = SYSCTL_ADD_NODE(&acpi_video_sysctl_ctx,
	- SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree),
	- OID_AUTO, "video", CTLFLAG_RD, 0,
	- "video extension control");
	+ SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO,
	+ "video", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "video extension control");
	}
	ACPI_SERIAL_END(video);

	@@ -539,39 +539,40 @@
	vo->vo_sysctl_tree =
	SYSCTL_ADD_NODE(&vo->vo_sysctl_ctx,
	SYSCTL_CHILDREN(acpi_video_sysctl_tree),
	- OID_AUTO, name, CTLFLAG_RD, 0, desc);
	+ OID_AUTO, name, CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ 0, desc);
	if (vo->vo_sysctl_tree != NULL) {
	SYSCTL_ADD_PROC(&vo->vo_sysctl_ctx,
	SYSCTL_CHILDREN(vo->vo_sysctl_tree),
	OID_AUTO, "active",
	- CTLTYPE_INT\|CTLFLAG_RW, vo, 0,
	- acpi_video_vo_active_sysctl, "I",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, vo,
	+ 0, acpi_video_vo_active_sysctl, "I",
	"current activity of this device");
	SYSCTL_ADD_PROC(&vo->vo_sysctl_ctx,
	SYSCTL_CHILDREN(vo->vo_sysctl_tree),
	OID_AUTO, "brightness",
	- CTLTYPE_INT\|CTLFLAG_RW, vo, 0,
	- acpi_video_vo_bright_sysctl, "I",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, vo,
	+ 0, acpi_video_vo_bright_sysctl, "I",
	"current brightness level");
	SYSCTL_ADD_PROC(&vo->vo_sysctl_ctx,
	SYSCTL_CHILDREN(vo->vo_sysctl_tree),
	OID_AUTO, "fullpower",
	- CTLTYPE_INT\|CTLFLAG_RW, vo,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, vo,
	POWER_PROFILE_PERFORMANCE,
	acpi_video_vo_presets_sysctl, "I",
	"preset level for full power mode");
	SYSCTL_ADD_PROC(&vo->vo_sysctl_ctx,
	SYSCTL_CHILDREN(vo->vo_sysctl_tree),
	OID_AUTO, "economy",
	- CTLTYPE_INT\|CTLFLAG_RW, vo,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, vo,
	POWER_PROFILE_ECONOMY,
	acpi_video_vo_presets_sysctl, "I",
	"preset level for economy mode");
	SYSCTL_ADD_PROC(&vo->vo_sysctl_ctx,
	SYSCTL_CHILDREN(vo->vo_sysctl_tree),
	OID_AUTO, "levels",
	- CTLTYPE_INT \| CTLFLAG_RD, vo, 0,
	- acpi_video_vo_levels_sysctl, "I",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, vo,
	+ 0, acpi_video_vo_levels_sysctl, "I",
	"supported brightness levels");
	} else
	printf("%s: sysctl node creation failed\n", type);
	Index: head/sys/dev/adb/adb_kbd.c
	===================================================================
	--- head/sys/dev/adb/adb_kbd.c
	+++ head/sys/dev/adb/adb_kbd.c
	@@ -370,7 +370,8 @@
	tree = device_get_sysctl_tree(dev);

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "fn_keys_function_as_primary", CTLTYPE_INT \| CTLFLAG_RW, sc,
	+ "fn_keys_function_as_primary",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc,
	0, adb_fn_keys, "I",
	"Set the Fn keys to be their F-key type as default");
	}
	Index: head/sys/dev/adb/adb_mouse.c
	===================================================================
	--- head/sys/dev/adb/adb_mouse.c
	+++ head/sys/dev/adb/adb_mouse.c
	@@ -330,8 +330,8 @@
	ctx = device_get_sysctl_ctx(dev);
	tree = device_get_sysctl_tree(dev);
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "tapping",
	- CTLTYPE_INT \| CTLFLAG_RW, sc, 0, adb_tapping_sysctl,
	- "I", "Tapping the pad causes button events");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ adb_tapping_sysctl, "I", "Tapping the pad causes button events");
	return;
	}

	Index: head/sys/dev/ae/if_ae.c
	===================================================================
	--- head/sys/dev/ae/if_ae.c
	+++ head/sys/dev/ae/if_ae.c
	@@ -419,13 +419,13 @@
	ctx = device_get_sysctl_ctx(sc->dev);
	root = device_get_sysctl_tree(sc->dev);
	stats = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(root), OID_AUTO, "stats",
	- CTLFLAG_RD, NULL, "ae statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "ae statistics");

	/*
	* Receiver statistcics.
	*/
	stats_rx = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(stats), OID_AUTO, "rx",
	- CTLFLAG_RD, NULL, "Rx MAC statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Rx MAC statistics");
	AE_SYSCTL(ctx, SYSCTL_CHILDREN(stats_rx), "bcast",
	"broadcast frames", &ae_stats->rx_bcast);
	AE_SYSCTL(ctx, SYSCTL_CHILDREN(stats_rx), "mcast",
	@@ -451,7 +451,7 @@
	* Receiver statistcics.
	*/
	stats_tx = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(stats), OID_AUTO, "tx",
	- CTLFLAG_RD, NULL, "Tx MAC statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Tx MAC statistics");
	AE_SYSCTL(ctx, SYSCTL_CHILDREN(stats_tx), "bcast",
	"broadcast frames", &ae_stats->tx_bcast);
	AE_SYSCTL(ctx, SYSCTL_CHILDREN(stats_tx), "mcast",
	Index: head/sys/dev/age/if_age.c
	===================================================================
	--- head/sys/dev/age/if_age.c
	+++ head/sys/dev/age/if_age.c
	@@ -749,13 +749,14 @@

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(sc->age_dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(sc->age_dev)), OID_AUTO,
	- "stats", CTLTYPE_INT \| CTLFLAG_RW, sc, 0, sysctl_age_stats,
	- "I", "Statistics");
	+ "stats", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ sc, 0, sysctl_age_stats, "I", "Statistics");

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(sc->age_dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(sc->age_dev)), OID_AUTO,
	- "int_mod", CTLTYPE_INT \| CTLFLAG_RW, &sc->age_int_mod, 0,
	- sysctl_hw_age_int_mod, "I", "age interrupt moderation");
	+ "int_mod", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &sc->age_int_mod, 0, sysctl_hw_age_int_mod, "I",
	+ "age interrupt moderation");

	/* Pull in device tunables. */
	sc->age_int_mod = AGE_IM_TIMER_DEFAULT;
	@@ -773,8 +774,8 @@

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(sc->age_dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(sc->age_dev)), OID_AUTO,
	- "process_limit", CTLTYPE_INT \| CTLFLAG_RW, &sc->age_process_limit,
	- 0, sysctl_hw_age_proc_limit, "I",
	+ "process_limit", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &sc->age_process_limit, 0, sysctl_hw_age_proc_limit, "I",
	"max number of Rx events to process");

	/* Pull in device tunables. */
	Index: head/sys/dev/ahci/ahci.c
	===================================================================
	--- head/sys/dev/ahci/ahci.c
	+++ head/sys/dev/ahci/ahci.c
	@@ -904,8 +904,8 @@
	ctx = device_get_sysctl_ctx(dev);
	tree = device_get_sysctl_tree(dev);
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "disable_phy",
	- CTLFLAG_RW \| CTLTYPE_UINT, ch, 0, ahci_ch_disablephy_proc, "IU",
	- "Disable PHY");
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, ch,
	+ 0, ahci_ch_disablephy_proc, "IU", "Disable PHY");
	return (0);

	err3:
	Index: head/sys/dev/aic7xxx/aic79xx_osm.c
	===================================================================
	--- head/sys/dev/aic7xxx/aic79xx_osm.c
	+++ head/sys/dev/aic7xxx/aic79xx_osm.c
	@@ -159,22 +159,22 @@

	ahd->sysctl_tree[AHD_SYSCTL_ROOT] =
	SYSCTL_ADD_NODE(&ahd->sysctl_ctx[AHD_SYSCTL_ROOT],
	- SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
	- device_get_nameunit(ahd->dev_softc), CTLFLAG_RD, 0,
	- ahd_sysctl_node_descriptions[AHD_SYSCTL_ROOT]);
	+ SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
	+ device_get_nameunit(ahd->dev_softc),
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ ahd_sysctl_node_descriptions[AHD_SYSCTL_ROOT]);
	SYSCTL_ADD_PROC(&ahd->sysctl_ctx[AHD_SYSCTL_ROOT],
	- SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_ROOT]),
	- OID_AUTO, "clear", CTLTYPE_UINT \| CTLFLAG_RW, ahd,
	- 0, ahd_clear_allcounters, "IU",
	- "Clear all counters");
	+ SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_ROOT]), OID_AUTO,
	+ "clear", CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, ahd,
	+ 0, ahd_clear_allcounters, "IU", "Clear all counters");

	for (i = AHD_SYSCTL_SUMMARY; i < AHD_SYSCTL_NUMBER; i++)
	ahd->sysctl_tree[i] =
	SYSCTL_ADD_NODE(&ahd->sysctl_ctx[i],
	- SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_ROOT]),
	- OID_AUTO, ahd_sysctl_node_elements[i],
	- CTLFLAG_RD, 0,
	- ahd_sysctl_node_descriptions[i]);
	+ SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_ROOT]),
	+ OID_AUTO, ahd_sysctl_node_elements[i],
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ ahd_sysctl_node_descriptions[i]);

	for (i = AHD_ERRORS_CORRECTABLE; i < AHD_ERRORS_NUMBER; i++) {
	SYSCTL_ADD_UINT(&ahd->sysctl_ctx[AHD_SYSCTL_SUMMARY],
	@@ -183,11 +183,11 @@
	CTLFLAG_RD, &ahd->summerr[i], i,
	ahd_sysctl_errors_descriptions[i]);
	SYSCTL_ADD_PROC(&ahd->sysctl_ctx[AHD_SYSCTL_DEBUG],
	- SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_DEBUG]),
	- OID_AUTO, ahd_sysctl_errors_elements[i],
	- CTLFLAG_RW \| CTLTYPE_UINT, ahd, i,
	- ahd_set_debugcounters, "IU",
	- ahd_sysctl_errors_descriptions[i]);
	+ SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_DEBUG]),
	+ OID_AUTO, ahd_sysctl_errors_elements[i],
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, ahd, i,
	+ ahd_set_debugcounters, "IU",
	+ ahd_sysctl_errors_descriptions[i]);
	}
	}

	Index: head/sys/dev/alc/if_alc.c
	===================================================================
	--- head/sys/dev/alc/if_alc.c
	+++ head/sys/dev/alc/if_alc.c
	@@ -1747,11 +1747,11 @@
	child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->alc_dev));

	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "int_rx_mod",
	- CTLTYPE_INT \| CTLFLAG_RW, &sc->alc_int_rx_mod, 0,
	- sysctl_hw_alc_int_mod, "I", "alc Rx interrupt moderation");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sc->alc_int_rx_mod,
	+ 0, sysctl_hw_alc_int_mod, "I", "alc Rx interrupt moderation");
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "int_tx_mod",
	- CTLTYPE_INT \| CTLFLAG_RW, &sc->alc_int_tx_mod, 0,
	- sysctl_hw_alc_int_mod, "I", "alc Tx interrupt moderation");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sc->alc_int_tx_mod,
	+ 0, sysctl_hw_alc_int_mod, "I", "alc Tx interrupt moderation");
	/* Pull in device tunables. */
	sc->alc_int_rx_mod = ALC_IM_RX_TIMER_DEFAULT;
	error = resource_int_value(device_get_name(sc->alc_dev),
	@@ -1778,8 +1778,8 @@
	}
	}
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "process_limit",
	- CTLTYPE_INT \| CTLFLAG_RW, &sc->alc_process_limit, 0,
	- sysctl_hw_alc_proc_limit, "I",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &sc->alc_process_limit, 0, sysctl_hw_alc_proc_limit, "I",
	"max number of Rx events to process");
	/* Pull in device tunables. */
	sc->alc_process_limit = ALC_PROC_DEFAULT;
	@@ -1796,13 +1796,13 @@
	}
	}

	- tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "ALC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "ALC statistics");
	parent = SYSCTL_CHILDREN(tree);

	/* Rx statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx", CTLFLAG_RD,
	- NULL, "Rx MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Rx MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	ALC_SYSCTL_STAT_ADD32(ctx, child, "good_frames",
	&stats->rx_frames, "Good frames");
	@@ -1855,8 +1855,8 @@
	"Frames dropped due to address filtering");

	/* Tx statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx", CTLFLAG_RD,
	- NULL, "Tx MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Tx MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	ALC_SYSCTL_STAT_ADD32(ctx, child, "good_frames",
	&stats->tx_frames, "Good frames");
	Index: head/sys/dev/ale/if_ale.c
	===================================================================
	--- head/sys/dev/ale/if_ale.c
	+++ head/sys/dev/ale/if_ale.c
	@@ -792,11 +792,11 @@
	child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ale_dev));

	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "int_rx_mod",
	- CTLTYPE_INT \| CTLFLAG_RW, &sc->ale_int_rx_mod, 0,
	- sysctl_hw_ale_int_mod, "I", "ale Rx interrupt moderation");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sc->ale_int_rx_mod,
	+ 0, sysctl_hw_ale_int_mod, "I", "ale Rx interrupt moderation");
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "int_tx_mod",
	- CTLTYPE_INT \| CTLFLAG_RW, &sc->ale_int_tx_mod, 0,
	- sysctl_hw_ale_int_mod, "I", "ale Tx interrupt moderation");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sc->ale_int_tx_mod,
	+ 0, sysctl_hw_ale_int_mod, "I", "ale Tx interrupt moderation");
	/* Pull in device tunables. */
	sc->ale_int_rx_mod = ALE_IM_RX_TIMER_DEFAULT;
	error = resource_int_value(device_get_name(sc->ale_dev),
	@@ -823,8 +823,8 @@
	}
	}
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "process_limit",
	- CTLTYPE_INT \| CTLFLAG_RW, &sc->ale_process_limit, 0,
	- sysctl_hw_ale_proc_limit, "I",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &sc->ale_process_limit, 0, sysctl_hw_ale_proc_limit, "I",
	"max number of Rx events to process");
	/* Pull in device tunables. */
	sc->ale_process_limit = ALE_PROC_DEFAULT;
	@@ -846,13 +846,13 @@
	&stats->reset_brk_seq,
	"Controller resets due to broken Rx sequnce number");

	- tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "ATE statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "ATE statistics");
	parent = SYSCTL_CHILDREN(tree);

	/* Rx statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx", CTLFLAG_RD,
	- NULL, "Rx MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Rx MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	ALE_SYSCTL_STAT_ADD32(ctx, child, "good_frames",
	&stats->rx_frames, "Good frames");
	@@ -905,8 +905,8 @@
	"Frames dropped due to address filtering");

	/* Tx statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx", CTLFLAG_RD,
	- NULL, "Tx MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Tx MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	ALE_SYSCTL_STAT_ADD32(ctx, child, "good_frames",
	&stats->tx_frames, "Good frames");
	Index: head/sys/dev/altera/atse/if_atse.c
	===================================================================
	--- head/sys/dev/altera/atse/if_atse.c
	+++ head/sys/dev/altera/atse/if_atse.c
	@@ -1237,7 +1237,8 @@
	}

	SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO,
	- atse_mac_stats_regs[i].name, CTLTYPE_UINT\|CTLFLAG_RD,
	+ atse_mac_stats_regs[i].name,
	+ CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	sc, i, sysctl_atse_mac_stats_proc, "IU",
	atse_mac_stats_regs[i].descr);
	}
	@@ -1250,7 +1251,8 @@
	}

	SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO,
	- atse_rx_err_stats_regs[i].name, CTLTYPE_UINT\|CTLFLAG_RD,
	+ atse_rx_err_stats_regs[i].name,
	+ CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	sc, i, sysctl_atse_rx_err_stats_proc, "IU",
	atse_rx_err_stats_regs[i].descr);
	}
	Index: head/sys/dev/altera/jtag_uart/altera_jtag_uart_cons.c
	===================================================================
	--- head/sys/dev/altera/jtag_uart/altera_jtag_uart_cons.c
	+++ head/sys/dev/altera/jtag_uart/altera_jtag_uart_cons.c
	@@ -52,7 +52,8 @@

	devclass_t altera_jtag_uart_devclass;

	-static SYSCTL_NODE(_hw, OID_AUTO, altera_jtag_uart, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_hw, OID_AUTO, altera_jtag_uart,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Altera JTAG UART configuration knobs");

	/*
	Index: head/sys/dev/amd_ecc_inject/ecc_inject.c
	===================================================================
	--- head/sys/dev/amd_ecc_inject/ecc_inject.c
	+++ head/sys/dev/amd_ecc_inject/ecc_inject.c
	@@ -125,24 +125,26 @@
	return (0);
	}

	-static SYSCTL_NODE(_hw, OID_AUTO, error_injection, CTLFLAG_RD, NULL,
	+static SYSCTL_NODE(_hw, OID_AUTO, error_injection,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"Hardware error injection");
	-static SYSCTL_NODE(_hw_error_injection, OID_AUTO, dram_ecc, CTLFLAG_RD, NULL,
	+static SYSCTL_NODE(_hw_error_injection, OID_AUTO, dram_ecc,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"DRAM ECC error injection");
	SYSCTL_UINT(_hw_error_injection_dram_ecc, OID_AUTO, delay,
	CTLTYPE_UINT \| CTLFLAG_RW, &delay_ms, 0,
	"Delay in milliseconds between error injections");
	SYSCTL_PROC(_hw_error_injection_dram_ecc, OID_AUTO, quadrant,
	- CTLTYPE_UINT \| CTLFLAG_RW, &quadrant, QUADRANT_MASK,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &quadrant, QUADRANT_MASK,
	sysctl_int_with_max, "IU",
	"Index of 16-byte quadrant within 64-byte line where errors "
	"should be injected");
	SYSCTL_PROC(_hw_error_injection_dram_ecc, OID_AUTO, word_mask,
	- CTLTYPE_UINT \| CTLFLAG_RW, &word_mask, INJ_WORD_MASK,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &word_mask, INJ_WORD_MASK,
	sysctl_nonzero_int_with_max, "IU",
	"9-bit mask of words where errors should be injected (8 data + 1 ECC)");
	SYSCTL_PROC(_hw_error_injection_dram_ecc, OID_AUTO, bit_mask,
	- CTLTYPE_UINT \| CTLFLAG_RW, &bit_mask, INJ_VECTOR_MASK,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &bit_mask, INJ_VECTOR_MASK,
	sysctl_nonzero_int_with_max, "IU",
	"16-bit mask of bits within each selected word where errors "
	"should be injected");
	Index: head/sys/dev/amdtemp/amdtemp.c
	===================================================================
	--- head/sys/dev/amdtemp/amdtemp.c
	+++ head/sys/dev/amdtemp/amdtemp.c
	@@ -496,11 +496,12 @@
	"Temperature sensor offset");
	sysctlnode = SYSCTL_ADD_NODE(sysctlctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "core0", CTLFLAG_RD, 0, "Core 0");
	+ "core0", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "Core 0");

	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sysctlnode),
	- OID_AUTO, "sensor0", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "sensor0",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, CORE0_SENSOR0, amdtemp_sysctl, "IK",
	"Core 0 / Sensor 0 temperature");

	@@ -509,24 +510,28 @@
	else if (sc->sc_ntemps > 1) {
	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sysctlnode),
	- OID_AUTO, "sensor1", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "sensor1",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, CORE0_SENSOR1, amdtemp_sysctl, "IK",
	"Core 0 / Sensor 1 temperature");

	if (sc->sc_ncores > 1) {
	sysctlnode = SYSCTL_ADD_NODE(sysctlctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "core1", CTLFLAG_RD, 0, "Core 1");
	+ OID_AUTO, "core1", CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ 0, "Core 1");

	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sysctlnode),
	- OID_AUTO, "sensor0", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "sensor0",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, CORE1_SENSOR0, amdtemp_sysctl, "IK",
	"Core 1 / Sensor 0 temperature");

	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sysctlnode),
	- OID_AUTO, "sensor1", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "sensor1",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, CORE1_SENSOR1, amdtemp_sysctl, "IK",
	"Core 1 / Sensor 1 temperature");
	}
	@@ -578,7 +583,8 @@
	(i == 0 ? CORE0 : CORE1) : CORE0_SENSOR0;
	sc->sc_sysctl_cpu[i] = SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(cpu)),
	- OID_AUTO, "temperature", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "temperature",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, sensor, amdtemp_sysctl, "IK",
	"Current temparature");
	}
	Index: head/sys/dev/amr/amr.c
	===================================================================
	--- head/sys/dev/amr/amr.c
	+++ head/sys/dev/amr/amr.c
	@@ -90,7 +90,8 @@
	#define AMR_DEFINE_TABLES
	#include <dev/amr/amr_tables.h>

	-SYSCTL_NODE(_hw, OID_AUTO, amr, CTLFLAG_RD, 0, "AMR driver parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, amr, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "AMR driver parameters");

	static d_open_t amr_open;
	static d_close_t amr_close;
	Index: head/sys/dev/an/if_an.c
	===================================================================
	--- head/sys/dev/an/if_an.c
	+++ head/sys/dev/an/if_an.c
	@@ -206,7 +206,7 @@

	/* sysctl vars */

	-static SYSCTL_NODE(_hw, OID_AUTO, an, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_hw, OID_AUTO, an, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Wireless driver parameters");

	/* XXX violate ethernet/netgraph callback hooks */
	@@ -266,8 +266,10 @@
	return error;
	}

	-SYSCTL_PROC(_hw_an, OID_AUTO, an_dump, CTLTYPE_STRING \| CTLFLAG_RW,
	- 0, sizeof(an_conf), sysctl_an_dump, "A", "");
	+SYSCTL_PROC(_hw_an, OID_AUTO, an_dump,
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, sizeof(an_conf),
	+ sysctl_an_dump, "A",
	+ "");

	static int
	sysctl_an_cache_mode(SYSCTL_HANDLER_ARGS)
	@@ -302,8 +304,10 @@
	return error;
	}

	-SYSCTL_PROC(_hw_an, OID_AUTO, an_cache_mode, CTLTYPE_STRING \| CTLFLAG_RW,
	- 0, sizeof(an_conf_cache), sysctl_an_cache_mode, "A", "");
	+SYSCTL_PROC(_hw_an, OID_AUTO, an_cache_mode,
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, sizeof(an_conf_cache),
	+ sysctl_an_cache_mode, "A",
	+ "");

	/*
	* We probe for an Aironet 4500/4800 card by attempting to
	Index: head/sys/dev/asmc/asmc.c
	===================================================================
	--- head/sys/dev/asmc/asmc.c
	+++ head/sys/dev/asmc/asmc.c
	@@ -490,7 +490,7 @@
	*/
	sc->sc_fan_tree[0] = SYSCTL_ADD_NODE(sysctlctx,
	SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "fan",
	- CTLFLAG_RD, 0, "Fan Root Tree");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "Fan Root Tree");

	for (i = 1; i <= sc->sc_nfan; i++) {
	j = i - 1;
	@@ -498,46 +498,48 @@
	name[1] = 0;
	sc->sc_fan_tree[i] = SYSCTL_ADD_NODE(sysctlctx,
	SYSCTL_CHILDREN(sc->sc_fan_tree[0]),
	- OID_AUTO, name, CTLFLAG_RD, 0,
	+ OID_AUTO, name, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Fan Subtree");

	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
	- OID_AUTO, "id", CTLTYPE_STRING \| CTLFLAG_RD,
	+ OID_AUTO, "id",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, j, model->smc_fan_id, "I",
	"Fan ID");

	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
	- OID_AUTO, "speed", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "speed",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, j, model->smc_fan_speed, "I",
	"Fan speed in RPM");

	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
	OID_AUTO, "safespeed",
	- CTLTYPE_INT \| CTLFLAG_RD,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, j, model->smc_fan_safespeed, "I",
	"Fan safe speed in RPM");

	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
	OID_AUTO, "minspeed",
	- CTLTYPE_INT \| CTLFLAG_RW,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	dev, j, model->smc_fan_minspeed, "I",
	"Fan minimum speed in RPM");

	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
	OID_AUTO, "maxspeed",
	- CTLTYPE_INT \| CTLFLAG_RW,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	dev, j, model->smc_fan_maxspeed, "I",
	"Fan maximum speed in RPM");

	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
	OID_AUTO, "targetspeed",
	- CTLTYPE_INT \| CTLFLAG_RW,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	dev, j, model->smc_fan_targetspeed, "I",
	"Fan target speed in RPM");
	}
	@@ -547,13 +549,13 @@
	*/
	sc->sc_temp_tree = SYSCTL_ADD_NODE(sysctlctx,
	SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "temp",
	- CTLFLAG_RD, 0, "Temperature sensors");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "Temperature sensors");

	for (i = 0; model->smc_temps[i]; i++) {
	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sc->sc_temp_tree),
	OID_AUTO, model->smc_tempnames[i],
	- CTLTYPE_INT \| CTLFLAG_RD,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, i, asmc_temp_sysctl, "I",
	model->smc_tempdescs[i]);
	}
	@@ -564,25 +566,29 @@
	if (model->smc_light_left) {
	sc->sc_light_tree = SYSCTL_ADD_NODE(sysctlctx,
	SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "light",
	- CTLFLAG_RD, 0, "Keyboard backlight sensors");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Keyboard backlight sensors");

	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sc->sc_light_tree),
	- OID_AUTO, "left", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "left",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, 0, model->smc_light_left, "I",
	"Keyboard backlight left sensor");

	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sc->sc_light_tree),
	- OID_AUTO, "right", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "right",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, 0, model->smc_light_right, "I",
	"Keyboard backlight right sensor");

	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sc->sc_light_tree),
	OID_AUTO, "control",
	- CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY,
	- dev, 0, model->smc_light_control, "I",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \|
	+ CTLFLAG_NEEDGIANT, dev, 0,
	+ model->smc_light_control, "I",
	"Keyboard backlight brightness control");
	}

	@@ -594,23 +600,26 @@
	*/
	sc->sc_sms_tree = SYSCTL_ADD_NODE(sysctlctx,
	SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sms",
	- CTLFLAG_RD, 0, "Sudden Motion Sensor");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "Sudden Motion Sensor");

	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sc->sc_sms_tree),
	- OID_AUTO, "x", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "x",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, 0, model->smc_sms_x, "I",
	"Sudden Motion Sensor X value");

	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sc->sc_sms_tree),
	- OID_AUTO, "y", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "y",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, 0, model->smc_sms_y, "I",
	"Sudden Motion Sensor Y value");

	SYSCTL_ADD_PROC(sysctlctx,
	SYSCTL_CHILDREN(sc->sc_sms_tree),
	- OID_AUTO, "z", CTLTYPE_INT \| CTLFLAG_RD,
	+ OID_AUTO, "z",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, 0, model->smc_sms_z, "I",
	"Sudden Motion Sensor Z value");

	Index: head/sys/dev/ata/ata-all.c
	===================================================================
	--- head/sys/dev/ata/ata-all.c
	+++ head/sys/dev/ata/ata-all.c
	@@ -78,7 +78,8 @@
	int ata_dma_check_80pin = 1;

	/* sysctl vars */
	-static SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "ATA driver parameters");
	SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma_check_80pin,
	CTLFLAG_RWTUN, &ata_dma_check_80pin, 0,
	"Check for 80pin cable before setting ATA DMA mode");
	Index: head/sys/dev/atkbdc/psm.c
	===================================================================
	--- head/sys/dev/atkbdc/psm.c
	+++ head/sys/dev/atkbdc/psm.c
	@@ -2943,8 +2943,10 @@
	}

	/* Add all sysctls under the debug.psm and hw.psm nodes */
	-static SYSCTL_NODE(_debug, OID_AUTO, psm, CTLFLAG_RD, 0, "ps/2 mouse");
	-static SYSCTL_NODE(_hw, OID_AUTO, psm, CTLFLAG_RD, 0, "ps/2 mouse");
	+static SYSCTL_NODE(_debug, OID_AUTO, psm, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "ps/2 mouse");
	+static SYSCTL_NODE(_hw, OID_AUTO, psm, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "ps/2 mouse");

	SYSCTL_INT(_debug_psm, OID_AUTO, loglevel, CTLFLAG_RWTUN, &verbose, 0,
	"Verbosity level");
	@@ -5800,7 +5802,8 @@
	sc->syninfo.softbuttons_y = sc->synhw.topButtonPad ? -1700 : 1700;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "softbuttons_y", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "softbuttons_y",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_SOFTBUTTONS_Y,
	synaptics_sysctl, "I",
	"Vertical size of softbuttons area");
	@@ -5809,7 +5812,8 @@
	sc->syninfo.softbutton2_x = 3100;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "softbutton2_x", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "softbutton2_x",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_SOFTBUTTON2_X,
	synaptics_sysctl, "I",
	"Horisontal position of 2-nd softbutton left edge (0-disable)");
	@@ -5818,7 +5822,8 @@
	sc->syninfo.softbutton3_x = 3900;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "softbutton3_x", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "softbutton3_x",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_SOFTBUTTON3_X,
	synaptics_sysctl, "I",
	"Horisontal position of 3-rd softbutton left edge (0-disable)");
	@@ -5835,8 +5840,8 @@
	/* Attach extra synaptics sysctl nodes under hw.psm.synaptics */
	sysctl_ctx_init(&sc->syninfo.sysctl_ctx);
	sc->syninfo.sysctl_tree = SYSCTL_ADD_NODE(&sc->syninfo.sysctl_ctx,
	- SYSCTL_STATIC_CHILDREN(_hw_psm), OID_AUTO, name, CTLFLAG_RD,
	- 0, descr);
	+ SYSCTL_STATIC_CHILDREN(_hw_psm), OID_AUTO, name,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, descr);

	/* hw.psm.synaptics.directional_scrolls. */
	sc->syninfo.directional_scrolls = 0;
	@@ -5884,7 +5889,8 @@
	sc->syninfo.min_pressure = 32;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "min_pressure", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "min_pressure",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_MIN_PRESSURE,
	synaptics_sysctl, "I",
	"Minimum pressure required to start an action");
	@@ -5893,7 +5899,8 @@
	sc->syninfo.max_pressure = 220;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "max_pressure", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "max_pressure",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_MAX_PRESSURE,
	synaptics_sysctl, "I",
	"Maximum pressure to detect palm");
	@@ -5902,7 +5909,8 @@
	sc->syninfo.max_width = 10;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "max_width", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "max_width",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_MAX_WIDTH,
	synaptics_sysctl, "I",
	"Maximum finger width to detect palm");
	@@ -5911,7 +5919,8 @@
	sc->syninfo.margin_top = 200;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "margin_top", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "margin_top",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_MARGIN_TOP,
	synaptics_sysctl, "I",
	"Top margin");
	@@ -5920,7 +5929,8 @@
	sc->syninfo.margin_right = 200;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "margin_right", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "margin_right",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_MARGIN_RIGHT,
	synaptics_sysctl, "I",
	"Right margin");
	@@ -5929,7 +5939,8 @@
	sc->syninfo.margin_bottom = 200;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "margin_bottom", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "margin_bottom",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_MARGIN_BOTTOM,
	synaptics_sysctl, "I",
	"Bottom margin");
	@@ -5938,7 +5949,8 @@
	sc->syninfo.margin_left = 200;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "margin_left", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "margin_left",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_MARGIN_LEFT,
	synaptics_sysctl, "I",
	"Left margin");
	@@ -5947,7 +5959,8 @@
	sc->syninfo.na_top = 1783;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "na_top", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "na_top",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_NA_TOP,
	synaptics_sysctl, "I",
	"Top noisy area, where weight_previous_na is used instead "
	@@ -5957,7 +5970,8 @@
	sc->syninfo.na_right = 563;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "na_right", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "na_right",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_NA_RIGHT,
	synaptics_sysctl, "I",
	"Right noisy area, where weight_previous_na is used instead "
	@@ -5967,7 +5981,8 @@
	sc->syninfo.na_bottom = 1408;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "na_bottom", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "na_bottom",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_NA_BOTTOM,
	synaptics_sysctl, "I",
	"Bottom noisy area, where weight_previous_na is used instead "
	@@ -5977,7 +5992,8 @@
	sc->syninfo.na_left = 1600;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "na_left", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "na_left",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_NA_LEFT,
	synaptics_sysctl, "I",
	"Left noisy area, where weight_previous_na is used instead "
	@@ -5987,7 +6003,8 @@
	sc->syninfo.window_min = 4;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "window_min", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "window_min",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_WINDOW_MIN,
	synaptics_sysctl, "I",
	"Minimum window size to start an action");
	@@ -5996,7 +6013,8 @@
	sc->syninfo.window_max = 10;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "window_max", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "window_max",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_WINDOW_MAX,
	synaptics_sysctl, "I",
	"Maximum window size");
	@@ -6005,7 +6023,8 @@
	sc->syninfo.multiplicator = 10000;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "multiplicator", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "multiplicator",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_MULTIPLICATOR,
	synaptics_sysctl, "I",
	"Multiplicator to increase precision in averages and divisions");
	@@ -6014,7 +6033,8 @@
	sc->syninfo.weight_current = 3;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "weight_current", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "weight_current",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_WEIGHT_CURRENT,
	synaptics_sysctl, "I",
	"Weight of the current movement in the new average");
	@@ -6023,7 +6043,8 @@
	sc->syninfo.weight_previous = 6;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "weight_previous", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "weight_previous",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_WEIGHT_PREVIOUS,
	synaptics_sysctl, "I",
	"Weight of the previous average");
	@@ -6032,7 +6053,8 @@
	sc->syninfo.weight_previous_na = 20;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "weight_previous_na", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "weight_previous_na",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_WEIGHT_PREVIOUS_NA,
	synaptics_sysctl, "I",
	"Weight of the previous average (inside the noisy area)");
	@@ -6041,7 +6063,8 @@
	sc->syninfo.weight_len_squared = 2000;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "weight_len_squared", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "weight_len_squared",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_WEIGHT_LEN_SQUARED,
	synaptics_sysctl, "I",
	"Length (squared) of segments where weight_previous "
	@@ -6051,7 +6074,8 @@
	sc->syninfo.div_min = 9;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "div_min", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "div_min",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_DIV_MIN,
	synaptics_sysctl, "I",
	"Divisor for fast movements");
	@@ -6060,7 +6084,8 @@
	sc->syninfo.div_max = 17;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "div_max", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "div_max",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_DIV_MAX,
	synaptics_sysctl, "I",
	"Divisor for slow movements");
	@@ -6069,7 +6094,8 @@
	sc->syninfo.div_max_na = 30;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "div_max_na", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "div_max_na",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_DIV_MAX_NA,
	synaptics_sysctl, "I",
	"Divisor with slow movements (inside the noisy area)");
	@@ -6078,7 +6104,8 @@
	sc->syninfo.div_len = 100;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "div_len", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "div_len",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_DIV_LEN,
	synaptics_sysctl, "I",
	"Length of segments where div_max starts to decrease");
	@@ -6087,7 +6114,8 @@
	sc->syninfo.tap_max_delta = 80;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "tap_max_delta", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "tap_max_delta",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_TAP_MAX_DELTA,
	synaptics_sysctl, "I",
	"Length of segments above which a tap is ignored");
	@@ -6096,7 +6124,8 @@
	sc->syninfo.tap_min_queue = 2;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "tap_min_queue", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "tap_min_queue",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_TAP_MIN_QUEUE,
	synaptics_sysctl, "I",
	"Number of packets required to consider a tap");
	@@ -6106,7 +6135,8 @@
	sc->syninfo.taphold_timeout = tap_timeout;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "taphold_timeout", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "taphold_timeout",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_TAPHOLD_TIMEOUT,
	synaptics_sysctl, "I",
	"Maximum elapsed time between two taps to consider a tap-hold "
	@@ -6116,7 +6146,8 @@
	sc->syninfo.vscroll_hor_area = 0; /* 1300 */
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "vscroll_hor_area", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "vscroll_hor_area",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_VSCROLL_HOR_AREA,
	synaptics_sysctl, "I",
	"Area reserved for horizontal virtual scrolling");
	@@ -6125,7 +6156,8 @@
	sc->syninfo.vscroll_ver_area = -400 - sc->syninfo.margin_right;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "vscroll_ver_area", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "vscroll_ver_area",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_VSCROLL_VER_AREA,
	synaptics_sysctl, "I",
	"Area reserved for vertical virtual scrolling");
	@@ -6134,7 +6166,8 @@
	sc->syninfo.vscroll_min_delta = 50;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "vscroll_min_delta", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "vscroll_min_delta",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_VSCROLL_MIN_DELTA,
	synaptics_sysctl, "I",
	"Minimum movement to consider virtual scrolling");
	@@ -6143,7 +6176,8 @@
	sc->syninfo.vscroll_div_min = 100;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "vscroll_div_min", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "vscroll_div_min",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_VSCROLL_DIV_MIN,
	synaptics_sysctl, "I",
	"Divisor for fast scrolling");
	@@ -6152,7 +6186,8 @@
	sc->syninfo.vscroll_div_max = 150;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "vscroll_div_max", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "vscroll_div_max",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_VSCROLL_DIV_MAX,
	synaptics_sysctl, "I",
	"Divisor for slow scrolling");
	@@ -6161,7 +6196,8 @@
	sc->syninfo.touchpad_off = 0;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "touchpad_off", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "touchpad_off",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_TOUCHPAD_OFF,
	synaptics_sysctl, "I",
	"Turn off touchpad");
	@@ -6169,7 +6205,8 @@
	sc->syninfo.three_finger_drag = 0;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "three_finger_drag", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "three_finger_drag",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_THREE_FINGER_DRAG,
	synaptics_sysctl, "I",
	"Enable dragging with three fingers");
	@@ -6178,7 +6215,8 @@
	sc->syninfo.natural_scroll = 0;
	SYSCTL_ADD_PROC(&sc->syninfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->syninfo.sysctl_tree), OID_AUTO,
	- "natural_scroll", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "natural_scroll",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, SYNAPTICS_SYSCTL_NATURAL_SCROLL,
	synaptics_sysctl, "I",
	"Enable natural scrolling");
	@@ -6763,14 +6801,15 @@
	/* Attach extra trackpoint sysctl nodes under hw.psm.trackpoint */
	sysctl_ctx_init(&sc->tpinfo.sysctl_ctx);
	sc->tpinfo.sysctl_tree = SYSCTL_ADD_NODE(&sc->tpinfo.sysctl_ctx,
	- SYSCTL_STATIC_CHILDREN(_hw_psm), OID_AUTO, "trackpoint", CTLFLAG_RD,
	- 0, "IBM/Lenovo TrackPoint");
	+ SYSCTL_STATIC_CHILDREN(_hw_psm), OID_AUTO, "trackpoint",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "IBM/Lenovo TrackPoint");

	/* hw.psm.trackpoint.sensitivity */
	sc->tpinfo.sensitivity = 0x80;
	SYSCTL_ADD_PROC(&sc->tpinfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->tpinfo.sysctl_tree), OID_AUTO,
	- "sensitivity", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "sensitivity",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, TRACKPOINT_SYSCTL_SENSITIVITY,
	trackpoint_sysctl, "I",
	"Sensitivity");
	@@ -6779,7 +6818,8 @@
	sc->tpinfo.inertia = 0x06;
	SYSCTL_ADD_PROC(&sc->tpinfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->tpinfo.sysctl_tree), OID_AUTO,
	- "negative_inertia", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "negative_inertia",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, TRACKPOINT_SYSCTL_NEGATIVE_INERTIA,
	trackpoint_sysctl, "I",
	"Negative inertia factor");
	@@ -6788,7 +6828,8 @@
	sc->tpinfo.uplateau = 0x61;
	SYSCTL_ADD_PROC(&sc->tpinfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->tpinfo.sysctl_tree), OID_AUTO,
	- "upper_plateau", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "upper_plateau",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, TRACKPOINT_SYSCTL_UPPER_PLATEAU,
	trackpoint_sysctl, "I",
	"Transfer function upper plateau speed");
	@@ -6797,7 +6838,8 @@
	sc->tpinfo.reach = 0x0a;
	SYSCTL_ADD_PROC(&sc->tpinfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->tpinfo.sysctl_tree), OID_AUTO,
	- "backup_range", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "backup_range",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, TRACKPOINT_SYSCTL_BACKUP_RANGE,
	trackpoint_sysctl, "I",
	"Backup range");
	@@ -6806,7 +6848,8 @@
	sc->tpinfo.draghys = 0xff;
	SYSCTL_ADD_PROC(&sc->tpinfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->tpinfo.sysctl_tree), OID_AUTO,
	- "drag_hysteresis", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "drag_hysteresis",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, TRACKPOINT_SYSCTL_DRAG_HYSTERESIS,
	trackpoint_sysctl, "I",
	"Drag hysteresis");
	@@ -6815,7 +6858,8 @@
	sc->tpinfo.mindrag = 0x14;
	SYSCTL_ADD_PROC(&sc->tpinfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->tpinfo.sysctl_tree), OID_AUTO,
	- "minimum_drag", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "minimum_drag",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, TRACKPOINT_SYSCTL_MINIMUM_DRAG,
	trackpoint_sysctl, "I",
	"Minimum drag");
	@@ -6824,7 +6868,8 @@
	sc->tpinfo.upthresh = 0xff;
	SYSCTL_ADD_PROC(&sc->tpinfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->tpinfo.sysctl_tree), OID_AUTO,
	- "up_threshold", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "up_threshold",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, TRACKPOINT_SYSCTL_UP_THRESHOLD,
	trackpoint_sysctl, "I",
	"Up threshold for release");
	@@ -6833,7 +6878,8 @@
	sc->tpinfo.threshold = 0x08;
	SYSCTL_ADD_PROC(&sc->tpinfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->tpinfo.sysctl_tree), OID_AUTO,
	- "threshold", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "threshold",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, TRACKPOINT_SYSCTL_THRESHOLD,
	trackpoint_sysctl, "I",
	"Threshold");
	@@ -6842,7 +6888,8 @@
	sc->tpinfo.jenks = 0x87;
	SYSCTL_ADD_PROC(&sc->tpinfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->tpinfo.sysctl_tree), OID_AUTO,
	- "jenks_curvature", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "jenks_curvature",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, TRACKPOINT_SYSCTL_JENKS_CURVATURE,
	trackpoint_sysctl, "I",
	"Jenks curvature");
	@@ -6851,7 +6898,8 @@
	sc->tpinfo.ztime = 0x26;
	SYSCTL_ADD_PROC(&sc->tpinfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->tpinfo.sysctl_tree), OID_AUTO,
	- "z_time", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "z_time",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, TRACKPOINT_SYSCTL_Z_TIME,
	trackpoint_sysctl, "I",
	"Z time constant");
	@@ -6860,7 +6908,8 @@
	sc->tpinfo.pts = 0x00;
	SYSCTL_ADD_PROC(&sc->tpinfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->tpinfo.sysctl_tree), OID_AUTO,
	- "press_to_select", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "press_to_select",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, TRACKPOINT_SYSCTL_PRESS_TO_SELECT,
	trackpoint_sysctl, "I",
	"Press to Select");
	@@ -6869,7 +6918,8 @@
	sc->tpinfo.skipback = 0x00;
	SYSCTL_ADD_PROC(&sc->tpinfo.sysctl_ctx,
	SYSCTL_CHILDREN(sc->tpinfo.sysctl_tree), OID_AUTO,
	- "skip_backups", CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_ANYBODY,
	+ "skip_backups",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT,
	sc, TRACKPOINT_SYSCTL_SKIP_BACKUPS,
	trackpoint_sysctl, "I",
	"Skip backups from drags");
	Index: head/sys/dev/bce/if_bce.c
	===================================================================
	--- head/sys/dev/bce/if_bce.c
	+++ head/sys/dev/bce/if_bce.c
	@@ -535,7 +535,8 @@
	/****************************************************************************/
	/* Tunable device values */
	/****************************************************************************/
	-static SYSCTL_NODE(_hw, OID_AUTO, bce, CTLFLAG_RD, 0, "bce driver parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, bce, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "bce driver parameters");

	/* Allowable values are TRUE or FALSE */
	static int bce_verbose = TRUE;
	@@ -9299,13 +9300,13 @@
	}

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "nvram_dump", CTLTYPE_OPAQUE \| CTLFLAG_RD,
	+ "nvram_dump", CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_nvram_dump, "S", "");

	#ifdef BCE_NVRAM_WRITE_SUPPORT
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "nvram_write", CTLTYPE_OPAQUE \| CTLFLAG_WR,
	+ "nvram_write", CTLTYPE_OPAQUE \| CTLFLAG_WR \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_nvram_write, "S", "");
	#endif
	@@ -9590,84 +9591,85 @@

	#ifdef BCE_DEBUG
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "driver_state", CTLTYPE_INT \| CTLFLAG_RW,
	+ "driver_state", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_driver_state, "I", "Drive state information");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "hw_state", CTLTYPE_INT \| CTLFLAG_RW,
	+ "hw_state", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_hw_state, "I", "Hardware state information");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "status_block", CTLTYPE_INT \| CTLFLAG_RW,
	+ "status_block", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_status_block, "I", "Dump status block");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "stats_block", CTLTYPE_INT \| CTLFLAG_RW,
	+ "stats_block", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_stats_block, "I", "Dump statistics block");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "stats_clear", CTLTYPE_INT \| CTLFLAG_RW,
	+ "stats_clear", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_stats_clear, "I", "Clear statistics block");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "shmem_state", CTLTYPE_INT \| CTLFLAG_RW,
	+ "shmem_state", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_shmem_state, "I", "Shared memory state information");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "bc_state", CTLTYPE_INT \| CTLFLAG_RW,
	+ "bc_state", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_bc_state, "I", "Bootcode state information");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dump_rx_bd_chain", CTLTYPE_INT \| CTLFLAG_RW,
	+ "dump_rx_bd_chain", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_dump_rx_bd_chain, "I", "Dump RX BD chain");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dump_rx_mbuf_chain", CTLTYPE_INT \| CTLFLAG_RW,
	+ "dump_rx_mbuf_chain", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_dump_rx_mbuf_chain, "I", "Dump RX MBUF chain");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dump_tx_chain", CTLTYPE_INT \| CTLFLAG_RW,
	+ "dump_tx_chain", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_dump_tx_chain, "I", "Dump tx_bd chain");

	if (bce_hdr_split == TRUE) {
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dump_pg_chain", CTLTYPE_INT \| CTLFLAG_RW,
	+ "dump_pg_chain",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_dump_pg_chain, "I", "Dump page chain");
	}

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dump_ctx", CTLTYPE_INT \| CTLFLAG_RW,
	+ "dump_ctx", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_dump_ctx, "I", "Dump context memory");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "breakpoint", CTLTYPE_INT \| CTLFLAG_RW,
	+ "breakpoint", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_breakpoint, "I", "Driver breakpoint");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "reg_read", CTLTYPE_INT \| CTLFLAG_RW,
	+ "reg_read", CTLTYPE_INT \| CTLFLAG_RW\| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_reg_read, "I", "Register read");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "nvram_read", CTLTYPE_INT \| CTLFLAG_RW,
	+ "nvram_read", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_nvram_read, "I", "NVRAM read");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "phy_read", CTLTYPE_INT \| CTLFLAG_RW,
	+ "phy_read", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	(void *)sc, 0,
	bce_sysctl_phy_read, "I", "PHY register read");

	Index: head/sys/dev/bfe/if_bfe.c
	===================================================================
	--- head/sys/dev/bfe/if_bfe.c
	+++ head/sys/dev/bfe/if_bfe.c
	@@ -478,8 +478,8 @@

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "stats", CTLTYPE_INT \| CTLFLAG_RW, sc, 0, sysctl_bfe_stats,
	- "I", "Statistics");
	+ "stats", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ sysctl_bfe_stats, "I", "Statistics");

	/* Set up ifnet structure */
	ifp = sc->bfe_ifp = if_alloc(IFT_ETHER);
	Index: head/sys/dev/bge/if_bge.c
	===================================================================
	--- head/sys/dev/bge/if_bge.c
	+++ head/sys/dev/bge/if_bge.c
	@@ -546,7 +546,8 @@

	static int bge_allow_asf = 1;

	-static SYSCTL_NODE(_hw, OID_AUTO, bge, CTLFLAG_RD, 0, "BGE driver parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, bge, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "BGE driver parameters");
	SYSCTL_INT(_hw_bge, OID_AUTO, allow_asf, CTLFLAG_RDTUN, &bge_allow_asf, 0,
	"Allow ASF mode if available");

	@@ -6247,20 +6248,20 @@

	#ifdef BGE_REGISTER_DEBUG
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "debug_info",
	- CTLTYPE_INT \| CTLFLAG_RW, sc, 0, bge_sysctl_debug_info, "I",
	- "Debug Information");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ bge_sysctl_debug_info, "I", "Debug Information");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "reg_read",
	- CTLTYPE_INT \| CTLFLAG_RW, sc, 0, bge_sysctl_reg_read, "I",
	- "MAC Register Read");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ bge_sysctl_reg_read, "I", "MAC Register Read");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "ape_read",
	- CTLTYPE_INT \| CTLFLAG_RW, sc, 0, bge_sysctl_ape_read, "I",
	- "APE Register Read");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ bge_sysctl_ape_read, "I", "APE Register Read");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "mem_read",
	- CTLTYPE_INT \| CTLFLAG_RW, sc, 0, bge_sysctl_mem_read, "I",
	- "Memory Read");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ bge_sysctl_mem_read, "I", "Memory Read");

	#endif

	@@ -6310,9 +6311,9 @@
	}

	#define BGE_SYSCTL_STAT(sc, ctx, desc, parent, node, oid) \
	- SYSCTL_ADD_PROC(ctx, parent, OID_AUTO, oid, CTLTYPE_UINT\|CTLFLAG_RD, \
	- sc, offsetof(struct bge_stats, node), bge_sysctl_stats, "IU", \
	- desc)
	+ SYSCTL_ADD_PROC(ctx, parent, OID_AUTO, oid, \
	+ CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, \
	+ offsetof(struct bge_stats, node), bge_sysctl_stats, "IU", desc)

	static void
	bge_add_sysctl_stats(struct bge_softc sc, struct sysctl_ctx_list ctx,
	@@ -6321,8 +6322,8 @@
	struct sysctl_oid *tree;
	struct sysctl_oid_list children, schildren;

	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "BGE Statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "BGE Statistics");
	schildren = children = SYSCTL_CHILDREN(tree);
	BGE_SYSCTL_STAT(sc, ctx, "Frames Dropped Due To Filters",
	children, COSFramesDroppedDueToFilters,
	@@ -6356,8 +6357,8 @@
	BGE_SYSCTL_STAT(sc, ctx, "NIC Send Threshold Hit",
	children, nicSendThresholdHit, "SendThresholdHit");

	- tree = SYSCTL_ADD_NODE(ctx, schildren, OID_AUTO, "rx", CTLFLAG_RD,
	- NULL, "BGE RX Statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, schildren, OID_AUTO, "rx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "BGE RX Statistics");
	children = SYSCTL_CHILDREN(tree);
	BGE_SYSCTL_STAT(sc, ctx, "Inbound Octets",
	children, rxstats.ifHCInOctets, "ifHCInOctets");
	@@ -6392,8 +6393,8 @@
	BGE_SYSCTL_STAT(sc, ctx, "Outbound Range Length Errors",
	children, rxstats.outRangeLengthError, "outRangeLengthError");

	- tree = SYSCTL_ADD_NODE(ctx, schildren, OID_AUTO, "tx", CTLFLAG_RD,
	- NULL, "BGE TX Statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, schildren, OID_AUTO, "tx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "BGE TX Statistics");
	children = SYSCTL_CHILDREN(tree);
	BGE_SYSCTL_STAT(sc, ctx, "Outbound Octets",
	children, txstats.ifHCOutOctets, "ifHCOutOctets");
	@@ -6452,8 +6453,8 @@
	struct bge_mac_stats *stats;

	stats = &sc->bge_mac_stats;
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "BGE Statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "BGE Statistics");
	schild = child = SYSCTL_CHILDREN(tree);
	BGE_SYSCTL_STAT_ADD64(ctx, child, "FramesDroppedDueToFilters",
	&stats->FramesDroppedDueToFilters, "Frames Dropped Due to Filters");
	@@ -6471,8 +6472,8 @@
	BGE_SYSCTL_STAT_ADD64(ctx, child, "RecvThresholdHit",
	&stats->RecvThresholdHit, "NIC Recv Threshold Hit");

	- tree = SYSCTL_ADD_NODE(ctx, schild, OID_AUTO, "rx", CTLFLAG_RD,
	- NULL, "BGE RX Statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, schild, OID_AUTO, "rx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "BGE RX Statistics");
	child = SYSCTL_CHILDREN(tree);
	BGE_SYSCTL_STAT_ADD64(ctx, child, "ifHCInOctets",
	&stats->ifHCInOctets, "Inbound Octets");
	@@ -6503,8 +6504,8 @@
	BGE_SYSCTL_STAT_ADD64(ctx, child, "UndersizePkts",
	&stats->etherStatsUndersizePkts, "Undersized Packets");

	- tree = SYSCTL_ADD_NODE(ctx, schild, OID_AUTO, "tx", CTLFLAG_RD,
	- NULL, "BGE TX Statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, schild, OID_AUTO, "tx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "BGE TX Statistics");
	child = SYSCTL_CHILDREN(tree);
	BGE_SYSCTL_STAT_ADD64(ctx, child, "ifHCOutOctets",
	&stats->ifHCOutOctets, "Outbound Octets");
	Index: head/sys/dev/bhnd/cores/pmu/bhnd_pmu.c
	===================================================================
	--- head/sys/dev/bhnd/cores/pmu/bhnd_pmu.c
	+++ head/sys/dev/bhnd/cores/pmu/bhnd_pmu.c
	@@ -191,15 +191,15 @@
	tree = device_get_sysctl_tree(dev);

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "bus_freq", CTLTYPE_UINT \| CTLFLAG_RD, sc, 0,
	+ "bus_freq", CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	bhnd_pmu_sysctl_bus_freq, "IU", "Bus clock frequency");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "cpu_freq", CTLTYPE_UINT \| CTLFLAG_RD, sc, 0,
	+ "cpu_freq", CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	bhnd_pmu_sysctl_cpu_freq, "IU", "CPU clock frequency");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "mem_freq", CTLTYPE_UINT \| CTLFLAG_RD, sc, 0,
	+ "mem_freq", CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	bhnd_pmu_sysctl_mem_freq, "IU", "Memory clock frequency");

	return (0);
	Index: head/sys/dev/bktr/bktr_os.c
	===================================================================
	--- head/sys/dev/bktr/bktr_os.c
	+++ head/sys/dev/bktr/bktr_os.c
	@@ -110,7 +110,8 @@
	int bt848_dolby = 0;
	#endif

	-static SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt");
	+static SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bt848 Driver mgmt");
	SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, "");
	SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, "");
	SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, "");
	Index: head/sys/dev/bnxt/bnxt_sysctl.c
	===================================================================
	--- head/sys/dev/bnxt/bnxt_sysctl.c
	+++ head/sys/dev/bnxt/bnxt_sysctl.c
	@@ -58,7 +58,7 @@
	ctx = device_get_sysctl_ctx(softc->dev);
	softc->hw_stats_oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(softc->dev)), OID_AUTO,
	- "hwstats", CTLFLAG_RD, 0, "hardware statistics");
	+ "hwstats", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "hardware statistics");
	if (!softc->hw_stats_oid) {
	sysctl_ctx_free(&softc->hw_stats);
	return ENOMEM;
	@@ -68,7 +68,8 @@
	ctx = device_get_sysctl_ctx(softc->dev);
	softc->ver_info->ver_oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(softc->dev)), OID_AUTO,
	- "ver", CTLFLAG_RD, 0, "hardware/firmware version information");
	+ "ver", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "hardware/firmware version information");
	if (!softc->ver_info->ver_oid) {
	sysctl_ctx_free(&softc->ver_info->ver_ctx);
	return ENOMEM;
	@@ -79,7 +80,8 @@
	ctx = device_get_sysctl_ctx(softc->dev);
	softc->nvm_info->nvm_oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(softc->dev)), OID_AUTO,
	- "nvram", CTLFLAG_RD, 0, "nvram information");
	+ "nvram", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "nvram information");
	if (!softc->nvm_info->nvm_oid) {
	sysctl_ctx_free(&softc->nvm_info->nvm_ctx);
	return ENOMEM;
	@@ -90,7 +92,7 @@
	ctx = device_get_sysctl_ctx(softc->dev);
	softc->hw_lro_oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(softc->dev)), OID_AUTO,
	- "hw_lro", CTLFLAG_RD, 0, "hardware lro");
	+ "hw_lro", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "hardware lro");
	if (!softc->hw_lro_oid) {
	sysctl_ctx_free(&softc->hw_lro_ctx);
	return ENOMEM;
	@@ -100,7 +102,7 @@
	ctx = device_get_sysctl_ctx(softc->dev);
	softc->flow_ctrl_oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(softc->dev)), OID_AUTO,
	- "fc", CTLFLAG_RD, 0, "flow ctrl");
	+ "fc", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "flow ctrl");
	if (!softc->flow_ctrl_oid) {
	sysctl_ctx_free(&softc->flow_ctrl_ctx);
	return ENOMEM;
	@@ -166,8 +168,8 @@
	sprintf(name, "txq%d", txr);
	sprintf(desc, "transmit queue %d", txr);
	oid = SYSCTL_ADD_NODE(&softc->hw_stats,
	- SYSCTL_CHILDREN(softc->hw_stats_oid), OID_AUTO, name, CTLFLAG_RD, 0,
	- desc);
	+ SYSCTL_CHILDREN(softc->hw_stats_oid), OID_AUTO, name,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, desc);
	if (!oid)
	return ENOMEM;

	@@ -210,8 +212,8 @@
	sprintf(name, "port_stats");
	sprintf(desc, "Port Stats");
	oid = SYSCTL_ADD_NODE(&softc->hw_stats,
	- SYSCTL_CHILDREN(softc->hw_stats_oid), OID_AUTO, name, CTLFLAG_RD, 0,
	- desc);
	+ SYSCTL_CHILDREN(softc->hw_stats_oid), OID_AUTO, name,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, desc);
	if (!oid)
	return ENOMEM;

	@@ -661,8 +663,8 @@
	sprintf(name, "rxq%d", rxr);
	sprintf(desc, "receive queue %d", rxr);
	oid = SYSCTL_ADD_NODE(&softc->hw_stats,
	- SYSCTL_CHILDREN(softc->hw_stats_oid), OID_AUTO, name, CTLFLAG_RD, 0,
	- desc);
	+ SYSCTL_CHILDREN(softc->hw_stats_oid), OID_AUTO, name,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, desc);
	if (!oid)
	return ENOMEM;

	@@ -861,12 +863,12 @@
	bnxt_chip_type[MAX_CHIP_TYPE] : bnxt_chip_type[vi->chip_type], 0,
	"RoCE firmware name");
	SYSCTL_ADD_PROC(&vi->ver_ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "package_ver", CTLTYPE_STRING\|CTLFLAG_RD, softc, 0,
	- bnxt_package_ver_sysctl, "A",
	+ "package_ver", CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ softc, 0, bnxt_package_ver_sysctl, "A",
	"currently installed package version");
	SYSCTL_ADD_PROC(&vi->ver_ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "hwrm_min_ver", CTLTYPE_STRING\|CTLFLAG_RWTUN, softc, 0,
	- bnxt_hwrm_min_ver_sysctl, "A",
	+ "hwrm_min_ver", CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT,
	+ softc, 0, bnxt_hwrm_min_ver_sysctl, "A",
	"minimum hwrm API vesion to support");

	return 0;
	@@ -1205,44 +1207,49 @@
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(softc->dev));;

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rss_key",
	- CTLTYPE_STRING\|CTLFLAG_RWTUN, softc, 0, bnxt_rss_key_sysctl, "A",
	- "RSS key");
	+ CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc, 0,
	+ bnxt_rss_key_sysctl, "A", "RSS key");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rss_type",
	- CTLTYPE_STRING\|CTLFLAG_RWTUN, softc, 0, bnxt_rss_type_sysctl, "A",
	- "RSS type bits");
	+ CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc, 0,
	+ bnxt_rss_type_sysctl, "A", "RSS type bits");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rx_stall",
	- CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0, bnxt_rx_stall_sysctl, "I",
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc, 0,
	+ bnxt_rx_stall_sysctl, "I",
	"buffer rx packets in hardware until the host posts new buffers");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "vlan_strip",
	- CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0, bnxt_vlan_strip_sysctl, "I",
	- "strip VLAN tag in the RX path");
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc, 0,
	+ bnxt_vlan_strip_sysctl, "I", "strip VLAN tag in the RX path");
	SYSCTL_ADD_STRING(ctx, children, OID_AUTO, "if_name", CTLFLAG_RD,
	iflib_get_ifp(softc->ctx)->if_xname, 0, "interface name");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "intr_coal_rx_usecs",
	- CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0, bnxt_set_coal_rx_usecs,
	- "I", "interrupt coalescing Rx Usecs");
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc, 0,
	+ bnxt_set_coal_rx_usecs, "I", "interrupt coalescing Rx Usecs");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "intr_coal_rx_frames",
	- CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0, bnxt_set_coal_rx_frames,
	- "I", "interrupt coalescing Rx Frames");
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc, 0,
	+ bnxt_set_coal_rx_frames, "I", "interrupt coalescing Rx Frames");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "intr_coal_rx_usecs_irq",
	- CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0, bnxt_set_coal_rx_usecs_irq,
	- "I", "interrupt coalescing Rx Usecs IRQ");
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc, 0,
	+ bnxt_set_coal_rx_usecs_irq, "I",
	+ "interrupt coalescing Rx Usecs IRQ");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "intr_coal_rx_frames_irq",
	- CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0, bnxt_set_coal_rx_frames_irq,
	- "I", "interrupt coalescing Rx Frames IRQ");
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc, 0,
	+ bnxt_set_coal_rx_frames_irq, "I",
	+ "interrupt coalescing Rx Frames IRQ");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "intr_coal_tx_usecs",
	- CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0, bnxt_set_coal_tx_usecs,
	- "I", "interrupt coalescing Tx Usces");
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc, 0,
	+ bnxt_set_coal_tx_usecs, "I", "interrupt coalescing Tx Usces");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "intr_coal_tx_frames",
	- CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0, bnxt_set_coal_tx_frames,
	- "I", "interrupt coalescing Tx Frames");
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc, 0,
	+ bnxt_set_coal_tx_frames, "I", "interrupt coalescing Tx Frames");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "intr_coal_tx_usecs_irq",
	- CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0, bnxt_set_coal_tx_usecs_irq,
	- "I", "interrupt coalescing Tx Usecs IRQ");
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc, 0,
	+ bnxt_set_coal_tx_usecs_irq, "I",
	+ "interrupt coalescing Tx Usecs IRQ");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "intr_coal_tx_frames_irq",
	- CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0, bnxt_set_coal_tx_frames_irq,
	- "I", "interrupt coalescing Tx Frames IRQ");
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc, 0,
	+ bnxt_set_coal_tx_frames_irq, "I",
	+ "interrupt coalescing Tx Frames IRQ");

	return 0;
	}
	@@ -1317,19 +1324,17 @@
	return ENOMEM;

	SYSCTL_ADD_PROC(&softc->flow_ctrl_ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "tx", CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0,
	- bnxt_flow_ctrl_tx, "A",
	- "Enable or Disable Tx Flow Ctrl: 0 / 1");
	+ "tx", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc, 0,
	+ bnxt_flow_ctrl_tx, "A", "Enable or Disable Tx Flow Ctrl: 0 / 1");

	SYSCTL_ADD_PROC(&softc->flow_ctrl_ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "rx", CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0,
	- bnxt_flow_ctrl_rx, "A",
	- "Enable or Disable Tx Flow Ctrl: 0 / 1");
	+ "rx", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc, 0,
	+ bnxt_flow_ctrl_rx, "A", "Enable or Disable Tx Flow Ctrl: 0 / 1");

	SYSCTL_ADD_PROC(&softc->flow_ctrl_ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "autoneg", CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0,
	- bnxt_flow_ctrl_autoneg, "A",
	- "Enable or Disable Autoneg Flow Ctrl: 0 / 1");
	+ "autoneg", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc,
	+ 0, bnxt_flow_ctrl_autoneg, "A",
	+ "Enable or Disable Autoneg Flow Ctrl: 0 / 1");

	return 0;
	}
	@@ -1343,31 +1348,31 @@
	return ENOMEM;

	SYSCTL_ADD_PROC(&softc->hw_lro_ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "enable", CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0,
	- bnxt_hw_lro_enable_disable, "A",
	- "Enable or Disable HW LRO: 0 / 1");
	+ "enable", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc,
	+ 0, bnxt_hw_lro_enable_disable, "A",
	+ "Enable or Disable HW LRO: 0 / 1");

	SYSCTL_ADD_PROC(&softc->hw_lro_ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "gro_mode", CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0,
	- bnxt_hw_lro_set_mode, "A",
	- "Set mode: 1 = GRO mode, 0 = RSC mode");
	+ "gro_mode", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc,
	+ 0, bnxt_hw_lro_set_mode, "A",
	+ "Set mode: 1 = GRO mode, 0 = RSC mode");

	SYSCTL_ADD_PROC(&softc->hw_lro_ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "max_agg_segs", CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0,
	- bnxt_hw_lro_set_max_agg_segs, "A",
	- "Set Max Agg Seg Value (unit is Log2): "
	- "0 (= 1 seg) / 1 (= 2 segs) / ... / 31 (= 2^31 segs)");
	+ "max_agg_segs", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT,
	+ softc, 0, bnxt_hw_lro_set_max_agg_segs, "A",
	+ "Set Max Agg Seg Value (unit is Log2): "
	+ "0 (= 1 seg) / 1 (= 2 segs) / ... / 31 (= 2^31 segs)");

	SYSCTL_ADD_PROC(&softc->hw_lro_ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "max_aggs", CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0,
	- bnxt_hw_lro_set_max_aggs, "A",
	- "Set Max Aggs Value (unit is Log2): "
	- "0 (= 1 agg) / 1 (= 2 aggs) / ... / 7 (= 2^7 segs)");
	+ "max_aggs", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT,
	+ softc, 0, bnxt_hw_lro_set_max_aggs, "A",
	+ "Set Max Aggs Value (unit is Log2): "
	+ "0 (= 1 agg) / 1 (= 2 aggs) / ... / 7 (= 2^7 segs)");

	SYSCTL_ADD_PROC(&softc->hw_lro_ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "min_agg_len", CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0,
	- bnxt_hw_lro_set_min_agg_len, "A",
	- "Min Agg Len: 1 to 9000");
	+ "min_agg_len", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT,
	+ softc, 0, bnxt_hw_lro_set_min_agg_len, "A",
	+ "Min Agg Len: 1 to 9000");

	return 0;
	}
	@@ -1407,7 +1412,8 @@
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(softc->dev));;

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "vlan_only",
	- CTLTYPE_INT\|CTLFLAG_RWTUN, softc, 0, bnxt_vlan_only_sysctl, "I",
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, softc, 0,
	+ bnxt_vlan_only_sysctl, "I",
	"require vlan tag on received packets when vlan is enabled");

	return 0;
	Index: head/sys/dev/bwn/if_bwn.c
	===================================================================
	--- head/sys/dev/bwn/if_bwn.c
	+++ head/sys/dev/bwn/if_bwn.c
	@@ -98,7 +98,7 @@

	#include "gpio_if.h"

	-static SYSCTL_NODE(_hw, OID_AUTO, bwn, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_hw, OID_AUTO, bwn, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Broadcom driver parameters");

	/*
	Index: head/sys/dev/bxe/bxe.c
	===================================================================
	--- head/sys/dev/bxe/bxe.c
	+++ head/sys/dev/bxe/bxe.c
	@@ -258,7 +258,8 @@

	/* Tunable device values... */

	-SYSCTL_NODE(_hw, OID_AUTO, bxe, CTLFLAG_RD, 0, "bxe driver parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, bxe, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "bxe driver parameters");

	/* Debug */
	unsigned long bxe_debug = 0;
	@@ -16163,44 +16164,41 @@
	CTLFLAG_RW, &sc->rx_budget, 0,
	"rx processing budget");

	- SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "pause_param",
	- CTLTYPE_UINT \| CTLFLAG_RW, sc, 0,
	- bxe_sysctl_pauseparam, "IU",
	- "need pause frames- DEF:0/TX:1/RX:2/BOTH:3/AUTO:4/AUTOTX:5/AUTORX:6/AUTORXTX:7/NONE:8");
	+ SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "pause_param",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ bxe_sysctl_pauseparam, "IU",
	+ "need pause frames- DEF:0/TX:1/RX:2/BOTH:3/AUTO:4/AUTOTX:5/AUTORX:6/AUTORXTX:7/NONE:8");


	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "state",
	- CTLTYPE_UINT \| CTLFLAG_RW, sc, 0,
	- bxe_sysctl_state, "IU", "dump driver state");
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ bxe_sysctl_state, "IU", "dump driver state");

	for (i = 0; i < BXE_NUM_ETH_STATS; i++) {
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- bxe_eth_stats_arr[i].string,
	- CTLTYPE_U64 \| CTLFLAG_RD, sc, i,
	- bxe_sysctl_eth_stat, "LU",
	- bxe_eth_stats_arr[i].string);
	+ bxe_eth_stats_arr[i].string,
	+ CTLTYPE_U64 \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, i,
	+ bxe_sysctl_eth_stat, "LU", bxe_eth_stats_arr[i].string);
	}

	/* add a new parent node for all queues "dev.bxe.#.queue" */
	queue_top = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "queue",
	- CTLFLAG_RD, NULL, "queue");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "queue");
	queue_top_children = SYSCTL_CHILDREN(queue_top);

	for (i = 0; i < sc->num_queues; i++) {
	/* add a new parent node for a single queue "dev.bxe.#.queue.#" */
	snprintf(queue_num_buf, sizeof(queue_num_buf), "%d", i);
	queue = SYSCTL_ADD_NODE(ctx, queue_top_children, OID_AUTO,
	- queue_num_buf, CTLFLAG_RD, NULL,
	- "single queue");
	+ queue_num_buf, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "single queue");
	queue_children = SYSCTL_CHILDREN(queue);

	for (j = 0; j < BXE_NUM_ETH_Q_STATS; j++) {
	q_stat = ((i << 16) \| j);
	SYSCTL_ADD_PROC(ctx, queue_children, OID_AUTO,
	- bxe_eth_q_stats_arr[j].string,
	- CTLTYPE_U64 \| CTLFLAG_RD, sc, q_stat,
	- bxe_sysctl_eth_q_stat, "LU",
	- bxe_eth_q_stats_arr[j].string);
	+ bxe_eth_q_stats_arr[j].string,
	+ CTLTYPE_U64 \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, q_stat,
	+ bxe_sysctl_eth_q_stat, "LU", bxe_eth_q_stats_arr[j].string);
	}
	}
	}
	Index: head/sys/dev/cadence/if_cgem.c
	===================================================================
	--- head/sys/dev/cadence/if_cgem.c
	+++ head/sys/dev/cadence/if_cgem.c
	@@ -1494,8 +1494,8 @@
	&sc->txdefragfails, 0,
	"Transmit m_defrag() failures");

	- tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "GEM statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "GEM statistics");
	child = SYSCTL_CHILDREN(tree);

	SYSCTL_ADD_UQUAD(ctx, child, OID_AUTO, "tx_bytes", CTLFLAG_RD,
	Index: head/sys/dev/cardbus/cardbus.c
	===================================================================
	--- head/sys/dev/cardbus/cardbus.c
	+++ head/sys/dev/cardbus/cardbus.c
	@@ -57,7 +57,8 @@
	#include "pcib_if.h"

	/* sysctl vars */
	-static SYSCTL_NODE(_hw, OID_AUTO, cardbus, CTLFLAG_RD, 0, "CardBus parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, cardbus, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "CardBus parameters");

	int cardbus_debug = 0;
	SYSCTL_INT(_hw_cardbus, OID_AUTO, debug, CTLFLAG_RWTUN,
	Index: head/sys/dev/coretemp/coretemp.c
	===================================================================
	--- head/sys/dev/coretemp/coretemp.c
	+++ head/sys/dev/coretemp/coretemp.c
	@@ -274,7 +274,8 @@

	oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(pdev)), OID_AUTO,
	- "coretemp", CTLFLAG_RD, NULL, "Per-CPU thermal information");
	+ "coretemp", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "Per-CPU thermal information");

	/*
	* Add the MIBs to dev.cpu.N and dev.cpu.N.coretemp.
	Index: head/sys/dev/cxgb/cxgb_main.c
	===================================================================
	--- head/sys/dev/cxgb/cxgb_main.c
	+++ head/sys/dev/cxgb/cxgb_main.c
	@@ -238,7 +238,8 @@
	*/
	static int msi_allowed = 2;

	-SYSCTL_NODE(_hw, OID_AUTO, cxgb, CTLFLAG_RD, 0, "CXGB driver parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, cxgb, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "CXGB driver parameters");
	SYSCTL_INT(_hw_cxgb, OID_AUTO, msi_allowed, CTLFLAG_RDTUN, &msi_allowed, 0,
	"MSI-X, MSI, INTx selector");

	Index: head/sys/dev/cxgb/cxgb_sge.c
	===================================================================
	--- head/sys/dev/cxgb/cxgb_sge.c
	+++ head/sys/dev/cxgb/cxgb_sge.c
	@@ -3451,13 +3451,13 @@

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	"intr_coal",
	- CTLTYPE_INT\|CTLFLAG_RW, sc,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc,
	0, t3_set_coalesce_usecs,
	"I", "interrupt coalescing timer (us)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	"pkt_timestamp",
	- CTLTYPE_INT \| CTLFLAG_RW, sc,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc,
	0, t3_pkt_timestamp,
	"I", "provide packet timestamp instead of connection hash");

	@@ -3469,7 +3469,8 @@

	snprintf(pi->namebuf, PORT_NAME_LEN, "port%d", i);
	poid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO,
	- pi->namebuf, CTLFLAG_RD, NULL, "port statistics");
	+ pi->namebuf, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "port statistics");
	poidlist = SYSCTL_CHILDREN(poid);
	SYSCTL_ADD_UINT(ctx, poidlist, OID_AUTO,
	"nqsets", CTLFLAG_RD, &pi->nqsets,
	@@ -3487,7 +3488,8 @@
	snprintf(qs->namebuf, QS_NAME_LEN, "qs%d", j);

	qspoid = SYSCTL_ADD_NODE(ctx, poidlist, OID_AUTO,
	- qs->namebuf, CTLFLAG_RD, NULL, "qset statistics");
	+ qs->namebuf, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "qset statistics");
	qspoidlist = SYSCTL_CHILDREN(qspoid);

	SYSCTL_ADD_UINT(ctx, qspoidlist, OID_AUTO, "fl0_empty",
	@@ -3498,19 +3500,23 @@
	"freelist #1 empty");

	rspqpoid = SYSCTL_ADD_NODE(ctx, qspoidlist, OID_AUTO,
	- rspq_name, CTLFLAG_RD, NULL, "rspq statistics");
	+ rspq_name, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "rspq statistics");
	rspqpoidlist = SYSCTL_CHILDREN(rspqpoid);

	txqpoid = SYSCTL_ADD_NODE(ctx, qspoidlist, OID_AUTO,
	- txq_names[0], CTLFLAG_RD, NULL, "txq statistics");
	+ txq_names[0], CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "txq statistics");
	txqpoidlist = SYSCTL_CHILDREN(txqpoid);

	ctrlqpoid = SYSCTL_ADD_NODE(ctx, qspoidlist, OID_AUTO,
	- txq_names[2], CTLFLAG_RD, NULL, "ctrlq statistics");
	+ txq_names[2], CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "ctrlq statistics");
	ctrlqpoidlist = SYSCTL_CHILDREN(ctrlqpoid);

	lropoid = SYSCTL_ADD_NODE(ctx, qspoidlist, OID_AUTO,
	- "lro_stats", CTLFLAG_RD, NULL, "LRO statistics");
	+ "lro_stats", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "LRO statistics");
	lropoidlist = SYSCTL_CHILDREN(lropoid);

	SYSCTL_ADD_UINT(ctx, rspqpoidlist, OID_AUTO, "size",
	@@ -3535,8 +3541,9 @@
	CTLFLAG_RW, &qs->rspq.rspq_dump_count,
	0, "#rspq entries to dump");
	SYSCTL_ADD_PROC(ctx, rspqpoidlist, OID_AUTO, "qdump",
	- CTLTYPE_STRING \| CTLFLAG_RD, &qs->rspq,
	- 0, t3_dump_rspq, "A", "dump of the response queue");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ &qs->rspq, 0, t3_dump_rspq, "A",
	+ "dump of the response queue");

	SYSCTL_ADD_UQUAD(ctx, txqpoidlist, OID_AUTO, "dropped",
	CTLFLAG_RD, &qs->txq[TXQ_ETH].txq_mr->br_drops,
	@@ -3595,8 +3602,9 @@
	CTLFLAG_RW, &qs->txq[TXQ_ETH].txq_dump_count,
	0, "txq #entries to dump");
	SYSCTL_ADD_PROC(ctx, txqpoidlist, OID_AUTO, "qdump",
	- CTLTYPE_STRING \| CTLFLAG_RD, &qs->txq[TXQ_ETH],
	- 0, t3_dump_txq_eth, "A", "dump of the transmit queue");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ &qs->txq[TXQ_ETH], 0, t3_dump_txq_eth, "A",
	+ "dump of the transmit queue");

	SYSCTL_ADD_UINT(ctx, ctrlqpoidlist, OID_AUTO, "dump_start",
	CTLFLAG_RW, &qs->txq[TXQ_CTRL].txq_dump_start,
	@@ -3605,8 +3613,9 @@
	CTLFLAG_RW, &qs->txq[TXQ_CTRL].txq_dump_count,
	0, "ctrl #entries to dump");
	SYSCTL_ADD_PROC(ctx, ctrlqpoidlist, OID_AUTO, "qdump",
	- CTLTYPE_STRING \| CTLFLAG_RD, &qs->txq[TXQ_CTRL],
	- 0, t3_dump_txq_ctrl, "A", "dump of the transmit queue");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ &qs->txq[TXQ_CTRL], 0, t3_dump_txq_ctrl, "A",
	+ "dump of the transmit queue");

	SYSCTL_ADD_U64(ctx, lropoidlist, OID_AUTO, "lro_queued",
	CTLFLAG_RD, &qs->lro.ctrl.lro_queued, 0, NULL);
	@@ -3620,7 +3629,7 @@

	/* Now add a node for mac stats. */
	poid = SYSCTL_ADD_NODE(ctx, poidlist, OID_AUTO, "mac_stats",
	- CTLFLAG_RD, NULL, "MAC statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "MAC statistics");
	poidlist = SYSCTL_CHILDREN(poid);

	/*
	@@ -3636,8 +3645,8 @@
	* all that here.
	*/
	#define CXGB_SYSCTL_ADD_QUAD(a) SYSCTL_ADD_OID(ctx, poidlist, OID_AUTO, #a, \
	- (CTLTYPE_U64 \| CTLFLAG_RD), pi, offsetof(struct mac_stats, a), \
	- sysctl_handle_macstat, "QU", 0)
	+ CTLTYPE_U64 \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, pi, \
	+ offsetof(struct mac_stats, a), sysctl_handle_macstat, "QU", 0)
	CXGB_SYSCTL_ADD_QUAD(tx_octets);
	CXGB_SYSCTL_ADD_QUAD(tx_octets_bad);
	CXGB_SYSCTL_ADD_QUAD(tx_frames);
	Index: head/sys/dev/cxgbe/crypto/t4_crypto.c
	===================================================================
	--- head/sys/dev/cxgbe/crypto/t4_crypto.c
	+++ head/sys/dev/cxgbe/crypto/t4_crypto.c
	@@ -2082,8 +2082,8 @@
	/*
	* dev.ccr.X.stats.
	*/
	- oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "statistics");
	+ oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "statistics");
	children = SYSCTL_CHILDREN(oid);

	SYSCTL_ADD_U64(ctx, children, OID_AUTO, "hash", CTLFLAG_RD,
	Index: head/sys/dev/cxgbe/cxgbei/cxgbei.c
	===================================================================
	--- head/sys/dev/cxgbe/cxgbei/cxgbei.c
	+++ head/sys/dev/cxgbe/cxgbei/cxgbei.c
	@@ -223,8 +223,8 @@
	oid = device_get_sysctl_tree(sc->dev); /* dev.t5nex.X */
	children = SYSCTL_CHILDREN(oid);

	- oid = SYSCTL_ADD_NODE(&ci->ctx, children, OID_AUTO, "iscsi", CTLFLAG_RD,
	- NULL, "iSCSI ULP statistics");
	+ oid = SYSCTL_ADD_NODE(&ci->ctx, children, OID_AUTO, "iscsi",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "iSCSI ULP statistics");
	children = SYSCTL_CHILDREN(oid);

	SYSCTL_ADD_COUNTER_U64(&ci->ctx, children, OID_AUTO, "ddp_setup_ok",
	Index: head/sys/dev/cxgbe/cxgbei/icl_cxgbei.c
	===================================================================
	--- head/sys/dev/cxgbe/cxgbei/icl_cxgbei.c
	+++ head/sys/dev/cxgbe/cxgbei/icl_cxgbei.c
	@@ -100,7 +100,8 @@
	#include "tom/t4_tom.h"
	#include "cxgbei.h"

	-SYSCTL_NODE(_kern_icl, OID_AUTO, cxgbei, CTLFLAG_RD, 0, "Chelsio iSCSI offload");
	+SYSCTL_NODE(_kern_icl, OID_AUTO, cxgbei, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Chelsio iSCSI offload");
	static int coalesce = 1;
	SYSCTL_INT(_kern_icl_cxgbei, OID_AUTO, coalesce, CTLFLAG_RWTUN,
	&coalesce, 0, "Try to coalesce PDUs before sending");
	Index: head/sys/dev/cxgbe/iw_cxgbe/cm.c
	===================================================================
	--- head/sys/dev/cxgbe/iw_cxgbe/cm.c
	+++ head/sys/dev/cxgbe/iw_cxgbe/cm.c
	@@ -1206,7 +1206,8 @@

	}

	-SYSCTL_NODE(_hw, OID_AUTO, iw_cxgbe, CTLFLAG_RD, 0, "iw_cxgbe driver parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, iw_cxgbe, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "iw_cxgbe driver parameters");

	static int dack_mode = 0;
	SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, dack_mode, CTLFLAG_RWTUN, &dack_mode, 0,
	Index: head/sys/dev/cxgbe/t4_main.c
	===================================================================
	--- head/sys/dev/cxgbe/t4_main.c
	+++ head/sys/dev/cxgbe/t4_main.c
	@@ -266,9 +266,12 @@
	* Tunables applicable to both T4 and T5 are under hw.cxgbe. Those specific to
	* T5 are under hw.cxl.
	*/
	-SYSCTL_NODE(_hw, OID_AUTO, cxgbe, CTLFLAG_RD, 0, "cxgbe(4) parameters");
	-SYSCTL_NODE(_hw, OID_AUTO, cxl, CTLFLAG_RD, 0, "cxgbe(4) T5+ parameters");
	-SYSCTL_NODE(_hw_cxgbe, OID_AUTO, toe, CTLFLAG_RD, 0, "cxgbe(4) TOE parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, cxgbe, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "cxgbe(4) parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, cxl, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "cxgbe(4) T5+ parameters");
	+SYSCTL_NODE(_hw_cxgbe, OID_AUTO, toe, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "cxgbe(4) TOE parameters");

	/*
	* Number of queues for tx and rx, NIC and offload.
	@@ -364,7 +367,8 @@
	static int t4_toe_rexmt_backoff[16] = {
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
	};
	-SYSCTL_NODE(_hw_cxgbe_toe, OID_AUTO, rexmt_backoff, CTLFLAG_RD, 0,
	+SYSCTL_NODE(_hw_cxgbe_toe, OID_AUTO, rexmt_backoff,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"cxgbe(4) TOE retransmit backoff values");
	SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 0, CTLFLAG_RDTUN,
	&t4_toe_rexmt_backoff[0], 0, "");
	@@ -604,7 +608,7 @@
	SYSCTL_INT(_hw_cxgbe, OID_AUTO, kern_tls, CTLFLAG_RDTUN, &t4_kern_tls, 0,
	"Enable KERN_TLS mode for all supported adapters");

	-SYSCTL_NODE(_hw_cxgbe, OID_AUTO, tls, CTLFLAG_RD, 0,
	+SYSCTL_NODE(_hw_cxgbe, OID_AUTO, tls, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"cxgbe(4) KERN_TLS parameters");

	static int t4_tls_inline_keys = 0;
	@@ -6230,21 +6234,22 @@
	sc->params.nports, "# of ports");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "doorbells",
	- CTLTYPE_STRING \| CTLFLAG_RD, doorbells, (uintptr_t)&sc->doorbells,
	- sysctl_bitfield_8b, "A", "available doorbells");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, doorbells,
	+ (uintptr_t)&sc->doorbells, sysctl_bitfield_8b, "A",
	+ "available doorbells");

	SYSCTL_ADD_INT(ctx, children, OID_AUTO, "core_clock", CTLFLAG_RD, NULL,
	sc->params.vpd.cclk, "core clock frequency (in KHz)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "holdoff_timers",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc->params.sge.timer_val,
	- sizeof(sc->params.sge.timer_val), sysctl_int_array, "A",
	- "interrupt holdoff timer values (us)");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ sc->params.sge.timer_val, sizeof(sc->params.sge.timer_val),
	+ sysctl_int_array, "A", "interrupt holdoff timer values (us)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "holdoff_pkt_counts",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc->params.sge.counter_val,
	- sizeof(sc->params.sge.counter_val), sysctl_int_array, "A",
	- "interrupt holdoff packet counter values");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ sc->params.sge.counter_val, sizeof(sc->params.sge.counter_val),
	+ sysctl_int_array, "A", "interrupt holdoff packet counter values");

	t4_sge_sysctls(sc, ctx, children);

	@@ -6302,8 +6307,9 @@

	#define SYSCTL_CAP(name, n, text) \
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, #name, \
	- CTLTYPE_STRING \| CTLFLAG_RD, caps_decoder[n], (uintptr_t)&sc->name, \
	- sysctl_bitfield_16b, "A", "available " text " capabilities")
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, caps_decoder[n], \
	+ (uintptr_t)&sc->name, sysctl_bitfield_16b, "A", \
	+ "available " text " capabilities")

	SYSCTL_CAP(nbmcaps, 0, "NBM");
	SYSCTL_CAP(linkcaps, 1, "link");
	@@ -6319,26 +6325,28 @@
	SYSCTL_ADD_INT(ctx, children, OID_AUTO, "nfilters", CTLFLAG_RD,
	NULL, sc->tids.nftids, "number of filters");

	- SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "temperature", CTLTYPE_INT \|
	- CTLFLAG_RD, sc, 0, sysctl_temperature, "I",
	- "chip temperature (in Celsius)");
	- SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "reset_sensor", CTLTYPE_INT \|
	- CTLFLAG_RW, sc, 0, sysctl_reset_sensor, "I",
	- "reset the chip's temperature sensor.");
	+ SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "temperature",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	+ sysctl_temperature, "I", "chip temperature (in Celsius)");
	+ SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "reset_sensor",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ sysctl_reset_sensor, "I", "reset the chip's temperature sensor.");

	- SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "loadavg", CTLTYPE_STRING \|
	- CTLFLAG_RD, sc, 0, sysctl_loadavg, "A",
	+ SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "loadavg",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	+ sysctl_loadavg, "A",
	"microprocessor load averages (debug firmwares only)");

	- SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "core_vdd", CTLTYPE_INT \|
	- CTLFLAG_RD, sc, 0, sysctl_vdd, "I", "core Vdd (in mV)");
	+ SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "core_vdd",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0, sysctl_vdd,
	+ "I", "core Vdd (in mV)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "local_cpus",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, LOCAL_CPUS,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, LOCAL_CPUS,
	sysctl_cpus, "A", "local CPUs");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "intr_cpus",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, INTR_CPUS,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, INTR_CPUS,
	sysctl_cpus, "A", "preferred CPUs for interrupts");

	SYSCTL_ADD_INT(ctx, children, OID_AUTO, "swintr", CTLFLAG_RW,
	@@ -6348,178 +6356,180 @@
	* dev.t4nex.X.misc. Marked CTLFLAG_SKIP to avoid information overload.
	*/
	oid = SYSCTL_ADD_NODE(ctx, c0, OID_AUTO, "misc",
	- CTLFLAG_RD \| CTLFLAG_SKIP, NULL,
	+ CTLFLAG_RD \| CTLFLAG_SKIP \| CTLFLAG_MPSAFE, NULL,
	"logs and miscellaneous information");
	children = SYSCTL_CHILDREN(oid);

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cctrl",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_cctrl, "A", "congestion control");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_ibq_tp0",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_cim_ibq_obq, "A", "CIM IBQ 0 (TP0)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_ibq_tp1",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 1,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 1,
	sysctl_cim_ibq_obq, "A", "CIM IBQ 1 (TP1)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_ibq_ulp",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 2,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 2,
	sysctl_cim_ibq_obq, "A", "CIM IBQ 2 (ULP)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_ibq_sge0",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 3,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 3,
	sysctl_cim_ibq_obq, "A", "CIM IBQ 3 (SGE0)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_ibq_sge1",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 4,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 4,
	sysctl_cim_ibq_obq, "A", "CIM IBQ 4 (SGE1)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_ibq_ncsi",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 5,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 5,
	sysctl_cim_ibq_obq, "A", "CIM IBQ 5 (NCSI)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_la",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0, sysctl_cim_la,
	- "A", "CIM logic analyzer");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	+ sysctl_cim_la, "A", "CIM logic analyzer");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_ma_la",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_cim_ma_la, "A", "CIM MA logic analyzer");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_ulp0",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0 + CIM_NUM_IBQ,
	- sysctl_cim_ibq_obq, "A", "CIM OBQ 0 (ULP0)");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ 0 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A", "CIM OBQ 0 (ULP0)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_ulp1",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 1 + CIM_NUM_IBQ,
	- sysctl_cim_ibq_obq, "A", "CIM OBQ 1 (ULP1)");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ 1 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A", "CIM OBQ 1 (ULP1)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_ulp2",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 2 + CIM_NUM_IBQ,
	- sysctl_cim_ibq_obq, "A", "CIM OBQ 2 (ULP2)");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ 2 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A", "CIM OBQ 2 (ULP2)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_ulp3",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 3 + CIM_NUM_IBQ,
	- sysctl_cim_ibq_obq, "A", "CIM OBQ 3 (ULP3)");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ 3 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A", "CIM OBQ 3 (ULP3)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_sge",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 4 + CIM_NUM_IBQ,
	- sysctl_cim_ibq_obq, "A", "CIM OBQ 4 (SGE)");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ 4 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A", "CIM OBQ 4 (SGE)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_ncsi",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 5 + CIM_NUM_IBQ,
	- sysctl_cim_ibq_obq, "A", "CIM OBQ 5 (NCSI)");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ 5 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A", "CIM OBQ 5 (NCSI)");

	if (chip_id(sc) > CHELSIO_T4) {
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_sge0_rx",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 6 + CIM_NUM_IBQ,
	- sysctl_cim_ibq_obq, "A", "CIM OBQ 6 (SGE0-RX)");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ 6 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A",
	+ "CIM OBQ 6 (SGE0-RX)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_sge1_rx",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 7 + CIM_NUM_IBQ,
	- sysctl_cim_ibq_obq, "A", "CIM OBQ 7 (SGE1-RX)");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ 7 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A",
	+ "CIM OBQ 7 (SGE1-RX)");
	}

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_pif_la",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_cim_pif_la, "A", "CIM PIF logic analyzer");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_qcfg",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_cim_qcfg, "A", "CIM queue configuration");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cpl_stats",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_cpl_stats, "A", "CPL statistics");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "ddp_stats",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_ddp_stats, "A", "non-TCP DDP statistics");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "devlog",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_devlog, "A", "firmware's device log");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "fcoe_stats",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_fcoe_stats, "A", "FCoE statistics");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "hw_sched",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_hw_sched, "A", "hardware scheduler ");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "l2t",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_l2t, "A", "hardware L2 table");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "smt",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_smt, "A", "hardware source MAC table");

	#ifdef INET6
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "clip",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_clip, "A", "active CLIP table entries");
	#endif

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "lb_stats",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_lb_stats, "A", "loopback statistics");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "meminfo",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_meminfo, "A", "memory regions");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "mps_tcam",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	chip_id(sc) <= CHELSIO_T5 ? sysctl_mps_tcam : sysctl_mps_tcam_t6,
	"A", "MPS TCAM entries");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "path_mtus",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_path_mtus, "A", "path MTUs");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "pm_stats",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_pm_stats, "A", "PM statistics");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rdma_stats",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_rdma_stats, "A", "RDMA statistics");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tcp_stats",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_tcp_stats, "A", "TCP statistics");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tids",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_tids, "A", "TID information");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tp_err_stats",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_tp_err_stats, "A", "TP error statistics");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tp_la_mask",
	- CTLTYPE_INT \| CTLFLAG_RW, sc, 0, sysctl_tp_la_mask, "I",
	- "TP logic analyzer event capture mask");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ sysctl_tp_la_mask, "I", "TP logic analyzer event capture mask");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tp_la",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_tp_la, "A", "TP logic analyzer");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tx_rate",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_tx_rate, "A", "Tx rate");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "ulprx_la",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_ulprx_la, "A", "ULPRX logic analyzer");

	if (chip_id(sc) >= CHELSIO_T5) {
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "wcwr_stats",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_wcwr_stats, "A", "write combined work requests");
	}

	@@ -6528,8 +6538,8 @@
	/*
	* dev.t4nex.0.tls.
	*/
	- oid = SYSCTL_ADD_NODE(ctx, c0, OID_AUTO, "tls", CTLFLAG_RD,
	- NULL, "KERN_TLS parameters");
	+ oid = SYSCTL_ADD_NODE(ctx, c0, OID_AUTO, "tls",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "KERN_TLS parameters");
	children = SYSCTL_CHILDREN(oid);

	SYSCTL_ADD_INT(ctx, children, OID_AUTO, "inline_keys",
	@@ -6550,8 +6560,8 @@
	/*
	* dev.t4nex.X.toe.
	*/
	- oid = SYSCTL_ADD_NODE(ctx, c0, OID_AUTO, "toe", CTLFLAG_RD,
	- NULL, "TOE parameters");
	+ oid = SYSCTL_ADD_NODE(ctx, c0, OID_AUTO, "toe",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "TOE parameters");
	children = SYSCTL_CHILDREN(oid);

	sc->tt.cong_algorithm = -1;
	@@ -6579,8 +6589,9 @@
	&sc->tt.tls, 0, "Inline TLS allowed");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tls_rx_ports",
	- CTLTYPE_INT \| CTLFLAG_RW, sc, 0, sysctl_tls_rx_ports,
	- "I", "TCP ports that use inline TLS+TOE RX");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ sysctl_tls_rx_ports, "I",
	+ "TCP ports that use inline TLS+TOE RX");

	sc->tt.tx_align = -1;
	SYSCTL_ADD_INT(ctx, children, OID_AUTO, "tx_align",
	@@ -6603,76 +6614,85 @@
	"autorcvbuf increment");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "timer_tick",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0, sysctl_tp_tick, "A",
	- "TP timer tick (us)");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	+ sysctl_tp_tick, "A", "TP timer tick (us)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "timestamp_tick",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 1, sysctl_tp_tick, "A",
	- "TCP timestamp tick (us)");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 1,
	+ sysctl_tp_tick, "A", "TCP timestamp tick (us)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "dack_tick",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 2, sysctl_tp_tick, "A",
	- "DACK tick (us)");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 2,
	+ sysctl_tp_tick, "A", "DACK tick (us)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "dack_timer",
	- CTLTYPE_UINT \| CTLFLAG_RD, sc, 0, sysctl_tp_dack_timer,
	- "IU", "DACK timer (us)");
	+ CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	+ sysctl_tp_dack_timer, "IU", "DACK timer (us)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rexmt_min",
	- CTLTYPE_ULONG \| CTLFLAG_RD, sc, A_TP_RXT_MIN,
	- sysctl_tp_timer, "LU", "Minimum retransmit interval (us)");
	+ CTLTYPE_ULONG \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ A_TP_RXT_MIN, sysctl_tp_timer, "LU",
	+ "Minimum retransmit interval (us)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rexmt_max",
	- CTLTYPE_ULONG \| CTLFLAG_RD, sc, A_TP_RXT_MAX,
	- sysctl_tp_timer, "LU", "Maximum retransmit interval (us)");
	+ CTLTYPE_ULONG \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ A_TP_RXT_MAX, sysctl_tp_timer, "LU",
	+ "Maximum retransmit interval (us)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "persist_min",
	- CTLTYPE_ULONG \| CTLFLAG_RD, sc, A_TP_PERS_MIN,
	- sysctl_tp_timer, "LU", "Persist timer min (us)");
	+ CTLTYPE_ULONG \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ A_TP_PERS_MIN, sysctl_tp_timer, "LU",
	+ "Persist timer min (us)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "persist_max",
	- CTLTYPE_ULONG \| CTLFLAG_RD, sc, A_TP_PERS_MAX,
	- sysctl_tp_timer, "LU", "Persist timer max (us)");
	+ CTLTYPE_ULONG \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ A_TP_PERS_MAX, sysctl_tp_timer, "LU",
	+ "Persist timer max (us)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "keepalive_idle",
	- CTLTYPE_ULONG \| CTLFLAG_RD, sc, A_TP_KEEP_IDLE,
	- sysctl_tp_timer, "LU", "Keepalive idle timer (us)");
	+ CTLTYPE_ULONG \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ A_TP_KEEP_IDLE, sysctl_tp_timer, "LU",
	+ "Keepalive idle timer (us)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "keepalive_interval",
	- CTLTYPE_ULONG \| CTLFLAG_RD, sc, A_TP_KEEP_INTVL,
	- sysctl_tp_timer, "LU", "Keepalive interval timer (us)");
	+ CTLTYPE_ULONG \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ A_TP_KEEP_INTVL, sysctl_tp_timer, "LU",
	+ "Keepalive interval timer (us)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "initial_srtt",
	- CTLTYPE_ULONG \| CTLFLAG_RD, sc, A_TP_INIT_SRTT,
	- sysctl_tp_timer, "LU", "Initial SRTT (us)");
	+ CTLTYPE_ULONG \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ A_TP_INIT_SRTT, sysctl_tp_timer, "LU", "Initial SRTT (us)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "finwait2_timer",
	- CTLTYPE_ULONG \| CTLFLAG_RD, sc, A_TP_FINWAIT2_TIMER,
	- sysctl_tp_timer, "LU", "FINWAIT2 timer (us)");
	+ CTLTYPE_ULONG \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ A_TP_FINWAIT2_TIMER, sysctl_tp_timer, "LU",
	+ "FINWAIT2 timer (us)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "syn_rexmt_count",
	- CTLTYPE_UINT \| CTLFLAG_RD, sc, S_SYNSHIFTMAX,
	- sysctl_tp_shift_cnt, "IU",
	+ CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ S_SYNSHIFTMAX, sysctl_tp_shift_cnt, "IU",
	"Number of SYN retransmissions before abort");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rexmt_count",
	- CTLTYPE_UINT \| CTLFLAG_RD, sc, S_RXTSHIFTMAXR2,
	- sysctl_tp_shift_cnt, "IU",
	+ CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ S_RXTSHIFTMAXR2, sysctl_tp_shift_cnt, "IU",
	"Number of retransmissions before abort");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "keepalive_count",
	- CTLTYPE_UINT \| CTLFLAG_RD, sc, S_KEEPALIVEMAXR2,
	- sysctl_tp_shift_cnt, "IU",
	+ CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ S_KEEPALIVEMAXR2, sysctl_tp_shift_cnt, "IU",
	"Number of keepalive probes before abort");

	oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "rexmt_backoff",
	- CTLFLAG_RD, NULL, "TOE retransmit backoffs");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "TOE retransmit backoffs");
	children = SYSCTL_CHILDREN(oid);
	for (i = 0; i < 16; i++) {
	snprintf(s, sizeof(s), "%u", i);
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, s,
	- CTLTYPE_UINT \| CTLFLAG_RD, sc, i, sysctl_tp_backoff,
	- "IU", "TOE retransmit backoff");
	+ CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ i, sysctl_tp_backoff, "IU",
	+ "TOE retransmit backoff");
	}
	}
	#endif
	@@ -6710,7 +6730,8 @@

	if (IS_MAIN_VI(vi)) {
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rsrv_noflowq",
	- CTLTYPE_INT \| CTLFLAG_RW, vi, 0, sysctl_noflowq, "IU",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, vi, 0,
	+ sysctl_noflowq, "IU",
	"Reserve queue 0 for non-flowid packets");
	}

	@@ -6723,11 +6744,11 @@
	CTLFLAG_RD, &vi->first_ofld_rxq, 0,
	"index of first TOE rx queue");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "holdoff_tmr_idx_ofld",
	- CTLTYPE_INT \| CTLFLAG_RW, vi, 0,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, vi, 0,
	sysctl_holdoff_tmr_idx_ofld, "I",
	"holdoff timer index for TOE queues");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "holdoff_pktc_idx_ofld",
	- CTLTYPE_INT \| CTLFLAG_RW, vi, 0,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, vi, 0,
	sysctl_holdoff_pktc_idx_ofld, "I",
	"holdoff packet counter index for TOE queues");
	}
	@@ -6758,18 +6779,18 @@
	#endif

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "holdoff_tmr_idx",
	- CTLTYPE_INT \| CTLFLAG_RW, vi, 0, sysctl_holdoff_tmr_idx, "I",
	- "holdoff timer index");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, vi, 0,
	+ sysctl_holdoff_tmr_idx, "I", "holdoff timer index");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "holdoff_pktc_idx",
	- CTLTYPE_INT \| CTLFLAG_RW, vi, 0, sysctl_holdoff_pktc_idx, "I",
	- "holdoff packet counter index");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, vi, 0,
	+ sysctl_holdoff_pktc_idx, "I", "holdoff packet counter index");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "qsize_rxq",
	- CTLTYPE_INT \| CTLFLAG_RW, vi, 0, sysctl_qsize_rxq, "I",
	- "rx queue size");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, vi, 0,
	+ sysctl_qsize_rxq, "I", "rx queue size");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "qsize_txq",
	- CTLTYPE_INT \| CTLFLAG_RW, vi, 0, sysctl_qsize_txq, "I",
	- "tx queue size");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, vi, 0,
	+ sysctl_qsize_txq, "I", "tx queue size");
	}

	static void
	@@ -6791,28 +6812,32 @@
	oid = device_get_sysctl_tree(pi->dev);
	children = SYSCTL_CHILDREN(oid);

	- SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "linkdnrc", CTLTYPE_STRING \|
	- CTLFLAG_RD, pi, 0, sysctl_linkdnrc, "A", "reason why link is down");
	+ SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "linkdnrc",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, pi, 0,
	+ sysctl_linkdnrc, "A", "reason why link is down");
	if (pi->port_type == FW_PORT_TYPE_BT_XAUI) {
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "temperature",
	- CTLTYPE_INT \| CTLFLAG_RD, pi, 0, sysctl_btphy, "I",
	- "PHY temperature (in Celsius)");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, pi, 0,
	+ sysctl_btphy, "I", "PHY temperature (in Celsius)");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "fw_version",
	- CTLTYPE_INT \| CTLFLAG_RD, pi, 1, sysctl_btphy, "I",
	- "PHY firmware version");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, pi, 1,
	+ sysctl_btphy, "I", "PHY firmware version");
	}

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "pause_settings",
	- CTLTYPE_STRING \| CTLFLAG_RW, pi, 0, sysctl_pause_settings, "A",
	- "PAUSE settings (bit 0 = rx_pause, 1 = tx_pause, 2 = pause_autoneg)");
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, pi, 0,
	+ sysctl_pause_settings, "A",
	+ "PAUSE settings (bit 0 = rx_pause, 1 = tx_pause, 2 = pause_autoneg)");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "fec",
	- CTLTYPE_STRING \| CTLFLAG_RW, pi, 0, sysctl_fec, "A",
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, pi, 0,
	+ sysctl_fec, "A",
	"FECs to use (bit 0 = RS, 1 = FC, 2 = none, 5 = auto, 6 = module)");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "module_fec",
	- CTLTYPE_STRING, pi, 0, sysctl_module_fec, "A",
	+ CTLTYPE_STRING \| CTLFLAG_NEEDGIANT, pi, 0, sysctl_module_fec, "A",
	"FEC recommended by the cable/transceiver");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "autoneg",
	- CTLTYPE_INT \| CTLFLAG_RW, pi, 0, sysctl_autoneg, "I",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, pi, 0,
	+ sysctl_autoneg, "I",
	"autonegotiation (-1 = not supported)");

	SYSCTL_ADD_INT(ctx, children, OID_AUTO, "pcaps", CTLFLAG_RD,
	@@ -6835,7 +6860,8 @@
	/*
	* dev.(cxgbe\|cxl).X.tc.
	*/
	- oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "tc", CTLFLAG_RD, NULL,
	+ oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "tc",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"Tx scheduler traffic classes (cl_rl)");
	children2 = SYSCTL_CHILDREN(oid);
	SYSCTL_ADD_UINT(ctx, children2, OID_AUTO, "pktsize",
	@@ -6849,32 +6875,33 @@

	snprintf(name, sizeof(name), "%d", i);
	children2 = SYSCTL_CHILDREN(SYSCTL_ADD_NODE(ctx,
	- SYSCTL_CHILDREN(oid), OID_AUTO, name, CTLFLAG_RD, NULL,
	- "traffic class"));
	+ SYSCTL_CHILDREN(oid), OID_AUTO, name,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "traffic class"));
	SYSCTL_ADD_PROC(ctx, children2, OID_AUTO, "flags",
	- CTLTYPE_STRING \| CTLFLAG_RD, tc_flags, (uintptr_t)&tc->flags,
	- sysctl_bitfield_8b, "A", "flags");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, tc_flags,
	+ (uintptr_t)&tc->flags, sysctl_bitfield_8b, "A", "flags");
	SYSCTL_ADD_UINT(ctx, children2, OID_AUTO, "refcount",
	CTLFLAG_RD, &tc->refcount, 0, "references to this class");
	SYSCTL_ADD_PROC(ctx, children2, OID_AUTO, "params",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, (pi->port_id << 16) \| i,
	- sysctl_tc_params, "A", "traffic class parameters");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ (pi->port_id << 16) \| i, sysctl_tc_params, "A",
	+ "traffic class parameters");
	}

	/*
	* dev.cxgbe.X.stats.
	*/
	- oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "port statistics");
	+ oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "port statistics");
	children = SYSCTL_CHILDREN(oid);
	SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "tx_parse_error", CTLFLAG_RD,
	&pi->tx_parse_error, 0,
	"# of tx packets with invalid length or # of segments");

	#define SYSCTL_ADD_T4_REG64(pi, name, desc, reg) \
	- SYSCTL_ADD_OID(ctx, children, OID_AUTO, name, \
	- CTLTYPE_U64 \| CTLFLAG_RD, sc, reg, \
	- sysctl_handle_t4_reg64, "QU", desc)
	+ SYSCTL_ADD_OID(ctx, children, OID_AUTO, name, \
	+ CTLTYPE_U64 \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, reg, \
	+ sysctl_handle_t4_reg64, "QU", desc)

	SYSCTL_ADD_T4_REG64(pi, "tx_octets", "# of octets in good frames",
	PORT_REG(pi->tx_chan, A_MPS_PORT_STAT_TX_PORT_BYTES_L));
	Index: head/sys/dev/cxgbe/t4_sge.c
	===================================================================
	--- head/sys/dev/cxgbe/t4_sge.c
	+++ head/sys/dev/cxgbe/t4_sge.c
	@@ -935,8 +935,8 @@
	struct sge_params *sp = &sc->params.sge;

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "buffer_sizes",
	- CTLTYPE_STRING \| CTLFLAG_RD, sc, 0, sysctl_bufsizes, "A",
	- "freelist buffer sizes");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	+ sysctl_bufsizes, "A", "freelist buffer sizes");

	SYSCTL_ADD_INT(ctx, children, OID_AUTO, "fl_pktshift", CTLFLAG_RD,
	NULL, sp->fl_pktshift, "payload DMA offset in rx buffer (bytes)");
	@@ -1006,7 +1006,7 @@
	* Control queues, one per port.
	*/
	oid = SYSCTL_ADD_NODE(&sc->ctx, children, OID_AUTO, "ctrlq",
	- CTLFLAG_RD, NULL, "control queues");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "control queues");
	for_each_port(sc, i) {
	struct sge_wrq *ctrlq = &sc->sge.ctrlq[i];

	@@ -1094,7 +1094,7 @@
	* doesn't set off any congestion signal in the chip.
	*/
	oid = SYSCTL_ADD_NODE(&vi->ctx, children, OID_AUTO, "nm_rxq",
	- CTLFLAG_RD, NULL, "rx queues");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "rx queues");
	for_each_nm_rxq(vi, i, nm_rxq) {
	rc = alloc_nm_rxq(vi, nm_rxq, intr_idx, i, oid);
	if (rc != 0)
	@@ -1103,7 +1103,7 @@
	}

	oid = SYSCTL_ADD_NODE(&vi->ctx, children, OID_AUTO, "nm_txq",
	- CTLFLAG_RD, NULL, "tx queues");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "tx queues");
	for_each_nm_txq(vi, i, nm_txq) {
	iqidx = vi->first_nm_rxq + (i % vi->nnmrxq);
	rc = alloc_nm_txq(vi, nm_txq, iqidx, i, oid);
	@@ -1122,7 +1122,7 @@
	*/
	maxp = mtu_to_max_payload(sc, mtu);
	oid = SYSCTL_ADD_NODE(&vi->ctx, children, OID_AUTO, "rxq",
	- CTLFLAG_RD, NULL, "rx queues");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "rx queues");
	for_each_rxq(vi, i, rxq) {

	init_iq(&rxq->iq, sc, vi->tmr_idx, vi->pktc_idx, vi->qsize_rxq);
	@@ -1143,7 +1143,7 @@
	#endif
	#ifdef TCP_OFFLOAD
	oid = SYSCTL_ADD_NODE(&vi->ctx, children, OID_AUTO, "ofld_rxq",
	- CTLFLAG_RD, NULL, "rx queues for offloaded TCP connections");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "rx queues for offloaded TCP connections");
	for_each_ofld_rxq(vi, i, ofld_rxq) {

	init_iq(&ofld_rxq->iq, sc, vi->ofld_tmr_idx, vi->ofld_pktc_idx,
	@@ -1164,8 +1164,8 @@
	/*
	* Now the tx queues.
	*/
	- oid = SYSCTL_ADD_NODE(&vi->ctx, children, OID_AUTO, "txq", CTLFLAG_RD,
	- NULL, "tx queues");
	+ oid = SYSCTL_ADD_NODE(&vi->ctx, children, OID_AUTO, "txq",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "tx queues");
	for_each_txq(vi, i, txq) {
	iqidx = vi->first_rxq + (i % vi->nrxq);
	snprintf(name, sizeof(name), "%s txq%d",
	@@ -1179,7 +1179,7 @@
	}
	#if defined(TCP_OFFLOAD) \|\| defined(RATELIMIT)
	oid = SYSCTL_ADD_NODE(&vi->ctx, children, OID_AUTO, "ofld_txq",
	- CTLFLAG_RD, NULL, "tx queues for TOE/ETHOFLD");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "tx queues for TOE/ETHOFLD");
	for_each_ofld_txq(vi, i, ofld_txq) {
	struct sysctl_oid *oid2;

	@@ -1198,7 +1198,7 @@

	snprintf(name, sizeof(name), "%d", i);
	oid2 = SYSCTL_ADD_NODE(&vi->ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- name, CTLFLAG_RD, NULL, "offload tx queue");
	+ name, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "offload tx queue");

	rc = alloc_wrq(sc, vi, ofld_txq, oid2);
	if (rc != 0)
	@@ -3381,14 +3381,14 @@
	SYSCTL_ADD_INT(ctx, children, OID_AUTO, "dmalen", CTLFLAG_RD, NULL,
	iq->qsize * IQ_ESIZE, "descriptor ring size in bytes");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "abs_id",
	- CTLTYPE_INT \| CTLFLAG_RD, &iq->abs_id, 0, sysctl_uint16, "I",
	- "absolute id of the queue");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &iq->abs_id, 0,
	+ sysctl_uint16, "I", "absolute id of the queue");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cntxt_id",
	- CTLTYPE_INT \| CTLFLAG_RD, &iq->cntxt_id, 0, sysctl_uint16, "I",
	- "SGE context id of the queue");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &iq->cntxt_id, 0,
	+ sysctl_uint16, "I", "SGE context id of the queue");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cidx",
	- CTLTYPE_INT \| CTLFLAG_RD, &iq->cidx, 0, sysctl_uint16, "I",
	- "consumer index");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &iq->cidx, 0,
	+ sysctl_uint16, "I", "consumer index");
	}

	static void
	@@ -3397,8 +3397,8 @@
	{
	struct sysctl_oid_list *children = SYSCTL_CHILDREN(oid);

	- oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "fl", CTLFLAG_RD, NULL,
	- "freelist");
	+ oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "fl",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "freelist");
	children = SYSCTL_CHILDREN(oid);

	SYSCTL_ADD_UAUTO(ctx, children, OID_AUTO, "ba", CTLFLAG_RD,
	@@ -3407,8 +3407,8 @@
	fl->sidx * EQ_ESIZE + sc->params.sge.spg_len,
	"desc ring size in bytes");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cntxt_id",
	- CTLTYPE_INT \| CTLFLAG_RD, &fl->cntxt_id, 0, sysctl_uint16, "I",
	- "SGE context id of the freelist");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &fl->cntxt_id, 0,
	+ sysctl_uint16, "I", "SGE context id of the freelist");
	SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "padding", CTLFLAG_RD, NULL,
	fl_pad ? 1 : 0, "padding enabled");
	SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "packing", CTLFLAG_RD, NULL,
	@@ -3449,8 +3449,8 @@
	return (rc);
	}

	- oid = SYSCTL_ADD_NODE(&sc->ctx, children, OID_AUTO, "fwq", CTLFLAG_RD,
	- NULL, "firmware event queue");
	+ oid = SYSCTL_ADD_NODE(&sc->ctx, children, OID_AUTO, "fwq",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "firmware event queue");
	add_iq_sysctls(&sc->ctx, oid, fwq);

	return (0);
	@@ -3477,8 +3477,8 @@

	children = SYSCTL_CHILDREN(oid);
	snprintf(name, sizeof(name), "%d", idx);
	- oid = SYSCTL_ADD_NODE(&sc->ctx, children, OID_AUTO, name, CTLFLAG_RD,
	- NULL, "ctrl queue");
	+ oid = SYSCTL_ADD_NODE(&sc->ctx, children, OID_AUTO, name,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "ctrl queue");
	rc = alloc_wrq(sc, NULL, ctrlq, oid);

	return (rc);
	@@ -3542,8 +3542,8 @@
	children = SYSCTL_CHILDREN(oid);

	snprintf(name, sizeof(name), "%d", idx);
	- oid = SYSCTL_ADD_NODE(&vi->ctx, children, OID_AUTO, name, CTLFLAG_RD,
	- NULL, "rx queue");
	+ oid = SYSCTL_ADD_NODE(&vi->ctx, children, OID_AUTO, name,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "rx queue");
	children = SYSCTL_CHILDREN(oid);

	add_iq_sysctls(&vi->ctx, oid, &rxq->iq);
	@@ -3600,8 +3600,8 @@
	children = SYSCTL_CHILDREN(oid);

	snprintf(name, sizeof(name), "%d", idx);
	- oid = SYSCTL_ADD_NODE(&vi->ctx, children, OID_AUTO, name, CTLFLAG_RD,
	- NULL, "rx queue");
	+ oid = SYSCTL_ADD_NODE(&vi->ctx, children, OID_AUTO, name,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "rx queue");
	add_iq_sysctls(&vi->ctx, oid, &ofld_rxq->iq);
	add_fl_sysctls(pi->adapter, &vi->ctx, oid, &ofld_rxq->fl);

	@@ -3662,28 +3662,28 @@
	children = SYSCTL_CHILDREN(oid);

	snprintf(name, sizeof(name), "%d", idx);
	- oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, name, CTLFLAG_RD, NULL,
	- "rx queue");
	+ oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, name,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "rx queue");
	children = SYSCTL_CHILDREN(oid);

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "abs_id",
	- CTLTYPE_INT \| CTLFLAG_RD, &nm_rxq->iq_abs_id, 0, sysctl_uint16,
	- "I", "absolute id of the queue");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &nm_rxq->iq_abs_id,
	+ 0, sysctl_uint16, "I", "absolute id of the queue");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cntxt_id",
	- CTLTYPE_INT \| CTLFLAG_RD, &nm_rxq->iq_cntxt_id, 0, sysctl_uint16,
	- "I", "SGE context id of the queue");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &nm_rxq->iq_cntxt_id,
	+ 0, sysctl_uint16, "I", "SGE context id of the queue");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cidx",
	- CTLTYPE_INT \| CTLFLAG_RD, &nm_rxq->iq_cidx, 0, sysctl_uint16, "I",
	- "consumer index");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &nm_rxq->iq_cidx, 0,
	+ sysctl_uint16, "I", "consumer index");

	children = SYSCTL_CHILDREN(oid);
	- oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "fl", CTLFLAG_RD, NULL,
	- "freelist");
	+ oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "fl",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "freelist");
	children = SYSCTL_CHILDREN(oid);

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cntxt_id",
	- CTLTYPE_INT \| CTLFLAG_RD, &nm_rxq->fl_cntxt_id, 0, sysctl_uint16,
	- "I", "SGE context id of the freelist");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &nm_rxq->fl_cntxt_id,
	+ 0, sysctl_uint16, "I", "SGE context id of the freelist");
	SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "cidx", CTLFLAG_RD,
	&nm_rxq->fl_cidx, 0, "consumer index");
	SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "pidx", CTLFLAG_RD,
	@@ -3743,18 +3743,18 @@
	nm_txq->cntxt_id = INVALID_NM_TXQ_CNTXT_ID;

	snprintf(name, sizeof(name), "%d", idx);
	- oid = SYSCTL_ADD_NODE(&vi->ctx, children, OID_AUTO, name, CTLFLAG_RD,
	- NULL, "netmap tx queue");
	+ oid = SYSCTL_ADD_NODE(&vi->ctx, children, OID_AUTO, name,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "netmap tx queue");
	children = SYSCTL_CHILDREN(oid);

	SYSCTL_ADD_UINT(&vi->ctx, children, OID_AUTO, "cntxt_id", CTLFLAG_RD,
	&nm_txq->cntxt_id, 0, "SGE context id of the queue");
	SYSCTL_ADD_PROC(&vi->ctx, children, OID_AUTO, "cidx",
	- CTLTYPE_INT \| CTLFLAG_RD, &nm_txq->cidx, 0, sysctl_uint16, "I",
	- "consumer index");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &nm_txq->cidx, 0,
	+ sysctl_uint16, "I", "consumer index");
	SYSCTL_ADD_PROC(&vi->ctx, children, OID_AUTO, "pidx",
	- CTLTYPE_INT \| CTLFLAG_RD, &nm_txq->pidx, 0, sysctl_uint16, "I",
	- "producer index");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &nm_txq->pidx, 0,
	+ sysctl_uint16, "I", "producer index");

	return (rc);
	}
	@@ -4071,11 +4071,11 @@
	SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "cntxt_id", CTLFLAG_RD,
	&wrq->eq.cntxt_id, 0, "SGE context id of the queue");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cidx",
	- CTLTYPE_INT \| CTLFLAG_RD, &wrq->eq.cidx, 0, sysctl_uint16, "I",
	- "consumer index");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &wrq->eq.cidx, 0,
	+ sysctl_uint16, "I", "consumer index");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "pidx",
	- CTLTYPE_INT \| CTLFLAG_RD, &wrq->eq.pidx, 0, sysctl_uint16, "I",
	- "producer index");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &wrq->eq.pidx, 0,
	+ sysctl_uint16, "I", "producer index");
	SYSCTL_ADD_INT(ctx, children, OID_AUTO, "sidx", CTLFLAG_RD, NULL,
	wrq->eq.sidx, "status page index");
	SYSCTL_ADD_UQUAD(ctx, children, OID_AUTO, "tx_wrs_direct", CTLFLAG_RD,
	@@ -4151,8 +4151,8 @@
	M_ZERO \| M_WAITOK);

	snprintf(name, sizeof(name), "%d", idx);
	- oid = SYSCTL_ADD_NODE(&vi->ctx, children, OID_AUTO, name, CTLFLAG_RD,
	- NULL, "tx queue");
	+ oid = SYSCTL_ADD_NODE(&vi->ctx, children, OID_AUTO, name,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "tx queue");
	children = SYSCTL_CHILDREN(oid);

	SYSCTL_ADD_UAUTO(&vi->ctx, children, OID_AUTO, "ba", CTLFLAG_RD,
	@@ -4165,17 +4165,17 @@
	SYSCTL_ADD_UINT(&vi->ctx, children, OID_AUTO, "cntxt_id", CTLFLAG_RD,
	&eq->cntxt_id, 0, "SGE context id of the queue");
	SYSCTL_ADD_PROC(&vi->ctx, children, OID_AUTO, "cidx",
	- CTLTYPE_INT \| CTLFLAG_RD, &eq->cidx, 0, sysctl_uint16, "I",
	- "consumer index");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &eq->cidx, 0,
	+ sysctl_uint16, "I", "consumer index");
	SYSCTL_ADD_PROC(&vi->ctx, children, OID_AUTO, "pidx",
	- CTLTYPE_INT \| CTLFLAG_RD, &eq->pidx, 0, sysctl_uint16, "I",
	- "producer index");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &eq->pidx, 0,
	+ sysctl_uint16, "I", "producer index");
	SYSCTL_ADD_INT(&vi->ctx, children, OID_AUTO, "sidx", CTLFLAG_RD, NULL,
	eq->sidx, "status page index");

	SYSCTL_ADD_PROC(&vi->ctx, children, OID_AUTO, "tc",
	- CTLTYPE_INT \| CTLFLAG_RW, vi, idx, sysctl_tc, "I",
	- "traffic class (-1 means none)");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, vi, idx, sysctl_tc,
	+ "I", "traffic class (-1 means none)");

	SYSCTL_ADD_UQUAD(&vi->ctx, children, OID_AUTO, "txcsum", CTLFLAG_RD,
	&txq->txcsum, "# of times hardware assisted with checksum");
	Index: head/sys/dev/dcons/dcons_os.c
	===================================================================
	--- head/sys/dev/dcons/dcons_os.c
	+++ head/sys/dev/dcons/dcons_os.c
	@@ -102,7 +102,8 @@

	static struct dcons_softc sc[DCONS_NPORT];

	-static SYSCTL_NODE(_kern, OID_AUTO, dcons, CTLFLAG_RD, 0, "Dumb Console");
	+static SYSCTL_NODE(_kern, OID_AUTO, dcons, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Dumb Console");
	SYSCTL_INT(_kern_dcons, OID_AUTO, poll_hz, CTLFLAG_RW, &poll_hz, 0,
	"dcons polling rate");

	Index: head/sys/dev/efidev/efirt.c
	===================================================================
	--- head/sys/dev/efidev/efirt.c
	+++ head/sys/dev/efidev/efirt.c
	@@ -109,7 +109,8 @@
	}

	static struct mtx efi_lock;
	-static SYSCTL_NODE(_hw, OID_AUTO, efi, CTLFLAG_RWTUN, NULL, "EFI");
	+static SYSCTL_NODE(_hw, OID_AUTO, efi, CTLFLAG_RWTUN \| CTLFLAG_MPSAFE, NULL,
	+ "EFI");
	static bool efi_poweroff = true;
	SYSCTL_BOOL(_hw_efi, OID_AUTO, poweroff, CTLFLAG_RWTUN, &efi_poweroff, 0,
	"If true, use EFI runtime services to power off in preference to ACPI");
	Index: head/sys/dev/ena/ena_sysctl.c
	===================================================================
	--- head/sys/dev/ena/ena_sysctl.c
	+++ head/sys/dev/ena/ena_sysctl.c
	@@ -38,7 +38,8 @@
	static int ena_sysctl_buf_ring_size(SYSCTL_HANDLER_ARGS);
	static int ena_sysctl_rx_queue_size(SYSCTL_HANDLER_ARGS);

	-static SYSCTL_NODE(_hw, OID_AUTO, ena, CTLFLAG_RD, 0, "ENA driver parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, ena, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "ENA driver parameters");

	/*
	* Logging level for changing verbosity of the output
	@@ -150,12 +151,12 @@
	snprintf(namebuf, QUEUE_NAME_LEN, "queue%d", i);

	queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO,
	- namebuf, CTLFLAG_RD, NULL, "Queue Name");
	+ namebuf, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Queue Name");
	queue_list = SYSCTL_CHILDREN(queue_node);

	/* TX specific stats */
	tx_node = SYSCTL_ADD_NODE(ctx, queue_list, OID_AUTO,
	- "tx_ring", CTLFLAG_RD, NULL, "TX ring");
	+ "tx_ring", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "TX ring");
	tx_list = SYSCTL_CHILDREN(tx_node);

	tx_stats = &tx_ring->tx_stats;
	@@ -203,7 +204,7 @@

	/* RX specific stats */
	rx_node = SYSCTL_ADD_NODE(ctx, queue_list, OID_AUTO,
	- "rx_ring", CTLFLAG_RD, NULL, "RX ring");
	+ "rx_ring", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "RX ring");
	rx_list = SYSCTL_CHILDREN(rx_node);

	rx_stats = &rx_ring->rx_stats;
	@@ -242,7 +243,7 @@

	/* Stats read from device */
	hw_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "hw_stats",
	- CTLFLAG_RD, NULL, "Statistics from hardware");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Statistics from hardware");
	hw_list = SYSCTL_CHILDREN(hw_node);

	SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "rx_packets", CTLFLAG_RD,
	@@ -258,7 +259,7 @@

	/* ENA Admin queue stats */
	admin_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "admin_stats",
	- CTLFLAG_RD, NULL, "ENA Admin Queue statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "ENA Admin Queue statistics");
	admin_list = SYSCTL_CHILDREN(admin_node);

	SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "aborted_cmd", CTLFLAG_RD,
	@@ -289,15 +290,15 @@
	child = SYSCTL_CHILDREN(tree);

	/* Tuneable number of buffers in the buf-ring (drbr) */
	- SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "buf_ring_size", CTLTYPE_INT \|
	- CTLFLAG_RW, adapter, 0, ena_sysctl_buf_ring_size, "I",
	- "Size of the bufring");
	+ SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "buf_ring_size",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, adapter, 0,
	+ ena_sysctl_buf_ring_size, "I", "Size of the bufring");

	/* Tuneable number of Rx ring size */
	- SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rx_queue_size", CTLTYPE_INT \|
	- CTLFLAG_RW, adapter, 0, ena_sysctl_rx_queue_size, "I",
	- "Size of the Rx ring. The size should be a power of 2. "
	- "Max value is 8K");
	+ SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rx_queue_size",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, adapter, 0,
	+ ena_sysctl_rx_queue_size, "I", "Size of the Rx ring. "
	+ "The size should be a power of 2. Max value is 8K");
	}


	Index: head/sys/dev/et/if_et.c
	===================================================================
	--- head/sys/dev/et/if_et.c
	+++ head/sys/dev/et/if_et.c
	@@ -2450,10 +2450,11 @@
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev));

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rx_intr_npkts",
	- CTLTYPE_INT \| CTLFLAG_RW, sc, 0, et_sysctl_rx_intr_npkts, "I",
	- "RX IM, # packets per RX interrupt");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ et_sysctl_rx_intr_npkts, "I", "RX IM, # packets per RX interrupt");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rx_intr_delay",
	- CTLTYPE_INT \| CTLFLAG_RW, sc, 0, et_sysctl_rx_intr_delay, "I",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ et_sysctl_rx_intr_delay, "I",
	"RX IM, RX interrupt delay (x10 usec)");
	SYSCTL_ADD_INT(ctx, children, OID_AUTO, "tx_intr_nsegs",
	CTLFLAG_RW, &sc->sc_tx_intr_nsegs, 0,
	@@ -2461,8 +2462,8 @@
	SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "timer",
	CTLFLAG_RW, &sc->sc_timer, 0, "TX timer");

	- tree = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "ET statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "ET statistics");
	parent = SYSCTL_CHILDREN(tree);

	/* TX/RX statistics. */
	@@ -2483,8 +2484,8 @@
	"1519 to 1522 bytes frames");

	/* RX statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx", CTLFLAG_RD,
	- NULL, "RX MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "RX MAC statistics");
	children = SYSCTL_CHILDREN(tree);
	ET_SYSCTL_STAT_ADD64(ctx, children, "bytes",
	&stats->rx_bytes, "Good bytes");
	@@ -2522,8 +2523,8 @@
	&stats->rx_drop, "Dropped frames");

	/* TX statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx", CTLFLAG_RD,
	- NULL, "TX MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "TX MAC statistics");
	children = SYSCTL_CHILDREN(tree);
	ET_SYSCTL_STAT_ADD64(ctx, children, "bytes",
	&stats->tx_bytes, "Good bytes");
	Index: head/sys/dev/etherswitch/mtkswitch/mtkswitch.c
	===================================================================
	--- head/sys/dev/etherswitch/mtkswitch/mtkswitch.c
	+++ head/sys/dev/etherswitch/mtkswitch/mtkswitch.c
	@@ -64,7 +64,8 @@
	#define DEBUG

	#if defined(DEBUG)
	-static SYSCTL_NODE(_debug, OID_AUTO, mtkswitch, CTLFLAG_RD, 0, "mtkswitch");
	+static SYSCTL_NODE(_debug, OID_AUTO, mtkswitch, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "mtkswitch");
	#endif

	static inline int mtkswitch_portforphy(int phy);
	Index: head/sys/dev/etherswitch/rtl8366/rtl8366rb.c
	===================================================================
	--- head/sys/dev/etherswitch/rtl8366/rtl8366rb.c
	+++ head/sys/dev/etherswitch/rtl8366/rtl8366rb.c
	@@ -107,7 +107,8 @@
	static int callout_blocked = 0;
	static int iic_select_retries = 0;
	static int phy_access_retries = 0;
	-static SYSCTL_NODE(_debug, OID_AUTO, rtl8366rb, CTLFLAG_RD, 0, "rtl8366rb");
	+static SYSCTL_NODE(_debug, OID_AUTO, rtl8366rb, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "rtl8366rb");
	SYSCTL_INT(_debug_rtl8366rb, OID_AUTO, callout_blocked, CTLFLAG_RW, &callout_blocked, 0,
	"number of times the callout couldn't acquire the bus");
	SYSCTL_INT(_debug_rtl8366rb, OID_AUTO, iic_select_retries, CTLFLAG_RW, &iic_select_retries, 0,
	Index: head/sys/dev/evdev/evdev.c
	===================================================================
	--- head/sys/dev/evdev/evdev.c
	+++ head/sys/dev/evdev/evdev.c
	@@ -69,7 +69,8 @@
	int evdev_rcpt_mask = EVDEV_RCPT_SYSMOUSE \| EVDEV_RCPT_KBDMUX;
	int evdev_sysmouse_t_axis = 0;

	-SYSCTL_NODE(_kern, OID_AUTO, evdev, CTLFLAG_RW, 0, "Evdev args");
	+SYSCTL_NODE(_kern, OID_AUTO, evdev, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Evdev args");
	#ifdef EVDEV_SUPPORT
	SYSCTL_INT(_kern_evdev, OID_AUTO, rcpt_mask, CTLFLAG_RW, &evdev_rcpt_mask, 0,
	"Who is receiving events: bit0 - sysmouse, bit1 - kbdmux, "
	@@ -77,7 +78,7 @@
	SYSCTL_INT(_kern_evdev, OID_AUTO, sysmouse_t_axis, CTLFLAG_RW,
	&evdev_sysmouse_t_axis, 0, "Extract T-axis from 0-none, 1-ums, 2-psm");
	#endif
	-SYSCTL_NODE(_kern_evdev, OID_AUTO, input, CTLFLAG_RD, 0,
	+SYSCTL_NODE(_kern_evdev, OID_AUTO, input, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Evdev input devices");

	static void evdev_start_repeat(struct evdev_dev *, uint16_t);
	@@ -209,7 +210,8 @@

	ev_sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&evdev->ev_sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_kern_evdev_input), OID_AUTO,
	- ev_unit_str, CTLFLAG_RD, NULL, "", "device index");
	+ ev_unit_str, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "",
	+ "device index");

	SYSCTL_ADD_STRING(&evdev->ev_sysctl_ctx,
	SYSCTL_CHILDREN(ev_sysctl_tree), OID_AUTO, "name", CTLFLAG_RD,
	Index: head/sys/dev/extres/clk/clk.c
	===================================================================
	--- head/sys/dev/extres/clk/clk.c
	+++ head/sys/dev/extres/clk/clk.c
	@@ -50,7 +50,8 @@
	#endif
	#include <dev/extres/clk/clk.h>

	-SYSCTL_NODE(_hw, OID_AUTO, clock, CTLFLAG_RD, NULL, "Clocks");
	+SYSCTL_NODE(_hw, OID_AUTO, clock, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "Clocks");

	MALLOC_DEFINE(M_CLOCK, "clocks", "Clock framework");

	@@ -400,12 +401,11 @@
	#endif

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	- SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "clocks",
	- CTLTYPE_STRING \| CTLFLAG_RD,
	- clkdom, 0, clkdom_sysctl,
	- "A",
	- "Clock list for the domain");
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	+ OID_AUTO, "clocks",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ clkdom, 0, clkdom_sysctl, "A",
	+ "Clock list for the domain");

	return (clkdom);
	}
	@@ -630,7 +630,7 @@
	clknode_oid = SYSCTL_ADD_NODE(&clknode->sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_hw_clock),
	OID_AUTO, clknode->name,
	- CTLFLAG_RD, 0, "A clock node");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "A clock node");

	SYSCTL_ADD_U64(&clknode->sysctl_ctx,
	SYSCTL_CHILDREN(clknode_oid),
	@@ -639,21 +639,21 @@
	SYSCTL_ADD_PROC(&clknode->sysctl_ctx,
	SYSCTL_CHILDREN(clknode_oid),
	OID_AUTO, "parent",
	- CTLTYPE_STRING \| CTLFLAG_RD,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	clknode, CLKNODE_SYSCTL_PARENT, clknode_sysctl,
	"A",
	"The clock parent");
	SYSCTL_ADD_PROC(&clknode->sysctl_ctx,
	SYSCTL_CHILDREN(clknode_oid),
	OID_AUTO, "parents",
	- CTLTYPE_STRING \| CTLFLAG_RD,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	clknode, CLKNODE_SYSCTL_PARENTS_LIST, clknode_sysctl,
	"A",
	"The clock parents list");
	SYSCTL_ADD_PROC(&clknode->sysctl_ctx,
	SYSCTL_CHILDREN(clknode_oid),
	OID_AUTO, "childrens",
	- CTLTYPE_STRING \| CTLFLAG_RD,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	clknode, CLKNODE_SYSCTL_CHILDREN_LIST, clknode_sysctl,
	"A",
	"The clock childrens list");
	Index: head/sys/dev/extres/regulator/regulator.c
	===================================================================
	--- head/sys/dev/extres/regulator/regulator.c
	+++ head/sys/dev/extres/regulator/regulator.c
	@@ -51,7 +51,8 @@

	#include "regdev_if.h"

	-SYSCTL_NODE(_hw, OID_AUTO, regulator, CTLFLAG_RD, NULL, "Regulators");
	+SYSCTL_NODE(_hw, OID_AUTO, regulator, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "Regulators");

	MALLOC_DEFINE(M_REGULATOR, "regulator", "Regulator framework");

	@@ -402,7 +403,7 @@
	regnode_oid = SYSCTL_ADD_NODE(&regnode->sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_hw_regulator),
	OID_AUTO, regnode->name,
	- CTLFLAG_RD, 0, "A regulator node");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "A regulator node");

	SYSCTL_ADD_INT(&regnode->sysctl_ctx,
	SYSCTL_CHILDREN(regnode_oid),
	@@ -453,7 +454,7 @@
	SYSCTL_ADD_PROC(&regnode->sysctl_ctx,
	SYSCTL_CHILDREN(regnode_oid),
	OID_AUTO, "uvolt",
	- CTLTYPE_INT \| CTLFLAG_RD,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	regnode, 0, regnode_uvolt_sysctl,
	"I",
	"Current voltage (in uV)");
	Index: head/sys/dev/fb/vesa.c
	===================================================================
	--- head/sys/dev/fb/vesa.c
	+++ head/sys/dev/fb/vesa.c
	@@ -102,7 +102,8 @@
	/* VESA video adapter */
	static video_adapter_t *vesa_adp;

	-static SYSCTL_NODE(_debug, OID_AUTO, vesa, CTLFLAG_RD, NULL, "VESA debugging");
	+static SYSCTL_NODE(_debug, OID_AUTO, vesa, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "VESA debugging");
	static int vesa_shadow_rom;
	SYSCTL_INT(_debug_vesa, OID_AUTO, shadow_rom, CTLFLAG_RDTUN, &vesa_shadow_rom,
	0, "Enable video BIOS shadow");
	Index: head/sys/dev/fdc/fdc.c
	===================================================================
	--- head/sys/dev/fdc/fdc.c
	+++ head/sys/dev/fdc/fdc.c
	@@ -270,7 +270,8 @@
	static void fdc_reset(struct fdc_data *);
	static int fd_probe_disk(struct fd_data , int );

	-static SYSCTL_NODE(_debug, OID_AUTO, fdc, CTLFLAG_RW, 0, "fdc driver");
	+static SYSCTL_NODE(_debug, OID_AUTO, fdc, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "fdc driver");

	static int fifo_threshold = 8;
	SYSCTL_INT(_debug_fdc, OID_AUTO, fifo, CTLFLAG_RW, &fifo_threshold, 0,
	Index: head/sys/dev/fdt/fdt_common.c
	===================================================================
	--- head/sys/dev/fdt/fdt_common.c
	+++ head/sys/dev/fdt/fdt_common.c
	@@ -63,7 +63,8 @@
	#define FDT_REG_CELLS 4
	#define FDT_RANGES_SIZE 48

	-SYSCTL_NODE(_hw, OID_AUTO, fdt, CTLFLAG_RD, 0, "Flattened Device Tree");
	+SYSCTL_NODE(_hw, OID_AUTO, fdt, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Flattened Device Tree");

	vm_paddr_t fdt_immr_pa;
	vm_offset_t fdt_immr_va;
	Index: head/sys/dev/firewire/firewire.c
	===================================================================
	--- head/sys/dev/firewire/firewire.c
	+++ head/sys/dev/firewire/firewire.c
	@@ -68,7 +68,8 @@
	int firewire_debug = 0, try_bmr = 1, hold_count = 0;
	SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0,
	"FireWire driver debug flag");
	-SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem");
	+SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "FireWire Subsystem");
	SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0,
	"Try to be a bus manager");
	SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0,
	Index: head/sys/dev/firewire/fwmem.c
	===================================================================
	--- head/sys/dev/firewire/fwmem.c
	+++ head/sys/dev/firewire/fwmem.c
	@@ -65,8 +65,9 @@
	static int fwmem_speed = 2, fwmem_debug = 0;
	static struct fw_eui64 fwmem_eui64;
	SYSCTL_DECL(_hw_firewire);
	-static SYSCTL_NODE(_hw_firewire, OID_AUTO, fwmem, CTLFLAG_RD, 0,
	- "FireWire Memory Access");
	+static SYSCTL_NODE(_hw_firewire, OID_AUTO, fwmem,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "FireWire Memory Access");
	SYSCTL_UINT(_hw_firewire_fwmem, OID_AUTO, eui64_hi, CTLFLAG_RW,
	&fwmem_eui64.hi, 0, "Fwmem target EUI64 high");
	SYSCTL_UINT(_hw_firewire_fwmem, OID_AUTO, eui64_lo, CTLFLAG_RW,
	Index: head/sys/dev/firewire/if_fwe.c
	===================================================================
	--- head/sys/dev/firewire/if_fwe.c
	+++ head/sys/dev/firewire/if_fwe.c
	@@ -85,8 +85,8 @@
	static MALLOC_DEFINE(M_FWE, "if_fwe", "Ethernet over FireWire interface");
	SYSCTL_INT(_debug, OID_AUTO, if_fwe_debug, CTLFLAG_RWTUN, &fwedebug, 0, "");
	SYSCTL_DECL(_hw_firewire);
	-static SYSCTL_NODE(_hw_firewire, OID_AUTO, fwe, CTLFLAG_RD, 0,
	- "Ethernet emulation subsystem");
	+static SYSCTL_NODE(_hw_firewire, OID_AUTO, fwe, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Ethernet emulation subsystem");
	SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, stream_ch, CTLFLAG_RWTUN, &stream_ch, 0,
	"Stream channel to use");
	SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, tx_speed, CTLFLAG_RWTUN, &tx_speed, 0,
	Index: head/sys/dev/firewire/if_fwip.c
	===================================================================
	--- head/sys/dev/firewire/if_fwip.c
	+++ head/sys/dev/firewire/if_fwip.c
	@@ -99,7 +99,7 @@
	static MALLOC_DEFINE(M_FWIP, "if_fwip", "IP over FireWire interface");
	SYSCTL_INT(_debug, OID_AUTO, if_fwip_debug, CTLFLAG_RW, &fwipdebug, 0, "");
	SYSCTL_DECL(_hw_firewire);
	-static SYSCTL_NODE(_hw_firewire, OID_AUTO, fwip, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_hw_firewire, OID_AUTO, fwip, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Firewire ip subsystem");
	SYSCTL_INT(_hw_firewire_fwip, OID_AUTO, rx_queue_len, CTLFLAG_RWTUN, &rx_queue_len,
	0, "Length of the receive queue");
	Index: head/sys/dev/firewire/sbp.c
	===================================================================
	--- head/sys/dev/firewire/sbp.c
	+++ head/sys/dev/firewire/sbp.c
	@@ -112,8 +112,8 @@
	static int sbp_tags = 0;

	SYSCTL_DECL(_hw_firewire);
	-static SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0,
	- "SBP-II Subsystem");
	+static SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "SBP-II Subsystem");
	SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RWTUN, &debug, 0,
	"SBP debug flag");
	SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RWTUN, &auto_login, 0,
	Index: head/sys/dev/fxp/if_fxp.c
	===================================================================
	--- head/sys/dev/fxp/if_fxp.c
	+++ head/sys/dev/fxp/if_fxp.c
	@@ -3153,12 +3153,12 @@
	ctx = device_get_sysctl_ctx(sc->dev);
	child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev));

	- SYSCTL_ADD_PROC(ctx, child,
	- OID_AUTO, "int_delay", CTLTYPE_INT \| CTLFLAG_RW,
	+ SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "int_delay",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&sc->tunable_int_delay, 0, sysctl_hw_fxp_int_delay, "I",
	"FXP driver receive interrupt microcode bundling delay");
	- SYSCTL_ADD_PROC(ctx, child,
	- OID_AUTO, "bundle_max", CTLTYPE_INT \| CTLFLAG_RW,
	+ SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "bundle_max",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&sc->tunable_bundle_max, 0, sysctl_hw_fxp_bundle_max, "I",
	"FXP driver receive interrupt microcode bundle size limit");
	SYSCTL_ADD_INT(ctx, child,OID_AUTO, "rnr", CTLFLAG_RD, &sc->rnr, 0,
	@@ -3176,13 +3176,13 @@
	sc->rnr = 0;

	hsp = &sc->fxp_hwstats;
	- tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "FXP statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "FXP statistics");
	parent = SYSCTL_CHILDREN(tree);

	/* Rx MAC statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx", CTLFLAG_RD,
	- NULL, "Rx MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Rx MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	FXP_SYSCTL_STAT_ADD(ctx, child, "good_frames",
	&hsp->rx_good, "Good frames");
	@@ -3209,8 +3209,8 @@
	&hsp->rx_tco, "TCO frames");

	/* Tx MAC statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx", CTLFLAG_RD,
	- NULL, "Tx MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Tx MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	FXP_SYSCTL_STAT_ADD(ctx, child, "good_frames",
	&hsp->tx_good, "Good frames");
	Index: head/sys/dev/gpio/gpiobacklight.c
	===================================================================
	--- head/sys/dev/gpio/gpiobacklight.c
	+++ head/sys/dev/gpio/gpiobacklight.c
	@@ -131,7 +131,7 @@
	ctx = device_get_sysctl_ctx(dev);
	tree = device_get_sysctl_tree(dev);
	sc->sc_oid = SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "brightness", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ "brightness", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	gpiobacklight_sysctl, "I", "backlight brightness");

	return (0);
	Index: head/sys/dev/hifn/hifn7751.c
	===================================================================
	--- head/sys/dev/hifn/hifn7751.c
	+++ head/sys/dev/hifn/hifn7751.c
	@@ -180,8 +180,8 @@
	}
	#define WRITE_REG_1(sc, reg, val) hifn_write_reg_1(sc, reg, val)

	-static SYSCTL_NODE(_hw, OID_AUTO, hifn, CTLFLAG_RD, 0,
	- "Hifn driver parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, hifn, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Hifn driver parameters");

	#ifdef HIFN_DEBUG
	static int hifn_debug = 0;
	Index: head/sys/dev/hptmv/hptproc.c
	===================================================================
	--- head/sys/dev/hptmv/hptproc.c
	+++ head/sys/dev/hptmv/hptproc.c
	@@ -639,13 +639,16 @@

	#if __FreeBSD_version >= 1100024
	#define hptregister_node(name) \
	- SYSCTL_ROOT_NODE(OID_AUTO, name, CTLFLAG_RW, 0, "Get/Set " #name " state root node"); \
	- SYSCTL_OID(_ ## name, OID_AUTO, status, CTLTYPE_STRING\|CTLFLAG_RW, \
	- NULL, 0, hpt_status, "A", "Get/Set " #name " state")
	+ SYSCTL_ROOT_NODE(OID_AUTO, name, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, \
	+ "Get/Set " #name " state root node"); \
	+ SYSCTL_OID(_ ## name, OID_AUTO, status, \
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, \
	+ NULL, 0, hpt_status, "A", "Get/Set " #name " state")
	#else
	#define hptregister_node(name) \
	SYSCTL_NODE(, OID_AUTO, name, CTLFLAG_RW, 0, "Get/Set " #name " state root node"); \
	- SYSCTL_OID(_ ## name, OID_AUTO, status, CTLTYPE_STRING\|CTLFLAG_RW, \
	+ SYSCTL_OID(_ ## name, OID_AUTO, status, \
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_MPSAFE, \
	NULL, 0, hpt_status, "A", "Get/Set " #name " state")
	#endif

	Index: head/sys/dev/hwpmc/hwpmc_mod.c
	===================================================================
	--- head/sys/dev/hwpmc/hwpmc_mod.c
	+++ head/sys/dev/hwpmc/hwpmc_mod.c
	@@ -275,7 +275,8 @@
	*/

	SYSCTL_DECL(_kern_hwpmc);
	-SYSCTL_NODE(_kern_hwpmc, OID_AUTO, stats, CTLFLAG_RW, 0, "HWPMC stats");
	+SYSCTL_NODE(_kern_hwpmc, OID_AUTO, stats, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "HWPMC stats");


	/* Stats. */
	@@ -313,8 +314,9 @@
	TUNABLE_STR(PMC_SYSCTL_NAME_PREFIX "debugflags", pmc_debugstr,
	sizeof(pmc_debugstr));
	SYSCTL_PROC(_kern_hwpmc, OID_AUTO, debugflags,
	- CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_NOFETCH,
	- 0, 0, pmc_debugflags_sysctl_handler, "A", "debug flags");
	+ CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_NOFETCH \| CTLFLAG_NEEDGIANT,
	+ 0, 0, pmc_debugflags_sysctl_handler, "A",
	+ "debug flags");
	#endif


	Index: head/sys/dev/hyperv/netvsc/if_hn.c
	===================================================================
	--- head/sys/dev/hyperv/netvsc/if_hn.c
	+++ head/sys/dev/hyperv/netvsc/if_hn.c
	@@ -576,12 +576,16 @@
	&hn_tx_agg_pkts, 0, "Packet transmission aggregation packet limit");

	/* VF list */
	-SYSCTL_PROC(_hw_hn, OID_AUTO, vflist, CTLFLAG_RD \| CTLTYPE_STRING,
	- 0, 0, hn_vflist_sysctl, "A", "VF list");
	+SYSCTL_PROC(_hw_hn, OID_AUTO, vflist,
	+ CTLFLAG_RD \| CTLTYPE_STRING \| CTLFLAG_NEEDGIANT, 0, 0,
	+ hn_vflist_sysctl, "A",
	+ "VF list");

	/* VF mapping */
	-SYSCTL_PROC(_hw_hn, OID_AUTO, vfmap, CTLFLAG_RD \| CTLTYPE_STRING,
	- 0, 0, hn_vfmap_sysctl, "A", "VF mapping");
	+SYSCTL_PROC(_hw_hn, OID_AUTO, vfmap,
	+ CTLFLAG_RD \| CTLTYPE_STRING \| CTLFLAG_NEEDGIANT, 0, 0,
	+ hn_vfmap_sysctl, "A",
	+ "VF mapping");

	/* Transparent VF */
	static int hn_xpnt_vf = 1;
	Index: head/sys/dev/if_ndis/if_ndis_usb.c
	===================================================================
	--- head/sys/dev/if_ndis/if_ndis_usb.c
	+++ head/sys/dev/if_ndis/if_ndis_usb.c
	@@ -68,7 +68,8 @@
	#include <compat/ndis/usbd_var.h>
	#include <dev/if_ndis/if_ndisvar.h>

	-SYSCTL_NODE(_hw, OID_AUTO, ndisusb, CTLFLAG_RD, 0, "NDIS USB driver parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, ndisusb, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "NDIS USB driver parameters");

	MODULE_DEPEND(ndis, usb, 1, 1, 1);

	Index: head/sys/dev/iicbus/ad7417.c
	===================================================================
	--- head/sys/dev/iicbus/ad7417.c
	+++ head/sys/dev/iicbus/ad7417.c
	@@ -416,7 +416,7 @@
	ctx = device_get_sysctl_ctx(dev);
	sensroot_oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "sensor",
	- CTLFLAG_RD, 0, "AD7417 Sensor Information");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "AD7417 Sensor Information");

	/* Now we can fill the properties into the allocated struct. */
	sc->sc_nsensors = ad7417_fill_sensor_prop(dev);
	@@ -432,9 +432,8 @@
	sysctl_name[j] = 0;

	oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(sensroot_oid),
	- OID_AUTO,
	- sysctl_name, CTLFLAG_RD, 0,
	- "Sensor Information");
	+ OID_AUTO, sysctl_name, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Sensor Information");

	if (sc->sc_sensors[i].type == ADC7417_TEMP_SENSOR) {
	unit = "temp";
	@@ -445,10 +444,10 @@
	}
	/* I use i to pass the sensor id. */
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- unit, CTLTYPE_INT \| CTLFLAG_RD, dev,
	- i, ad7417_sensor_sysctl,
	- sc->sc_sensors[i].type == ADC7417_TEMP_SENSOR ?
	- "IK" : "I", desc);
	+ unit, CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, dev,
	+ i, ad7417_sensor_sysctl,
	+ sc->sc_sensors[i].type == ADC7417_TEMP_SENSOR ? "IK" : "I",
	+ desc);
	}
	/* Dump sensor location, ID & type. */
	if (bootverbose) {
	Index: head/sys/dev/iicbus/ad7418.c
	===================================================================
	--- head/sys/dev/iicbus/ad7418.c
	+++ head/sys/dev/iicbus/ad7418.c
	@@ -118,11 +118,11 @@
	sx_init(&sc->sc_lock, "ad7418");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "temp", CTLTYPE_INT \| CTLFLAG_RD, sc, 0,
	- ad7418_sysctl_temp, "I", "operating temperature");
	+ "temp", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	+ ad7418_sysctl_temp, "I", "operating temperature");
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "volt", CTLTYPE_INT \| CTLFLAG_RD, sc, 0,
	- ad7418_sysctl_voltage, "I", "input voltage");
	+ "volt", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	+ ad7418_sysctl_voltage, "I", "input voltage");

	/* enable chip if configured in shutdown mode */
	conf = ad7418_read_1(dev, AD7418_CONF);
	Index: head/sys/dev/iicbus/ads111x.c
	===================================================================
	--- head/sys/dev/iicbus/ads111x.c
	+++ head/sys/dev/iicbus/ads111x.c
	@@ -407,16 +407,18 @@
	devtree = device_get_sysctl_tree(sc->dev);
	snprintf(chanstr, sizeof(chanstr), "%d", chan);
	chantree = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(devtree), OID_AUTO,
	- chanstr, CTLFLAG_RD, NULL, "channel data");
	+ chanstr, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "channel data");
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(chantree), OID_AUTO,
	- "gain_index", CTLTYPE_INT \| CTLFLAG_RWTUN, sc, chan,
	- ads111x_sysctl_gainidx, "I", "programmable gain amp setting, 0-7");
	+ "gain_index", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT,
	+ sc, chan, ads111x_sysctl_gainidx, "I",
	+ "programmable gain amp setting, 0-7");
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(chantree), OID_AUTO,
	- "rate_index", CTLTYPE_INT \| CTLFLAG_RWTUN, sc, chan,
	- ads111x_sysctl_rateidx, "I", "sample rate setting, 0-7");
	+ "rate_index", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT,
	+ sc, chan, ads111x_sysctl_rateidx, "I", "sample rate setting, 0-7");
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(chantree), OID_AUTO,
	- "voltage", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_SKIP, sc, chan,
	- ads111x_sysctl_voltage, "I", "sampled voltage in microvolts");
	+ "voltage",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_SKIP \| CTLFLAG_NEEDGIANT, sc,
	+ chan, ads111x_sysctl_voltage, "I", "sampled voltage in microvolts");

	c->configured = true;
	}
	@@ -556,13 +558,13 @@
	ctx = device_get_sysctl_ctx(dev);
	tree = device_get_sysctl_tree(dev);
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "config", CTLTYPE_INT \| CTLFLAG_RWTUN, sc, 0,
	+ "config", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, sc, 0,
	ads111x_sysctl_config, "I", "configuration register word");
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "lo_thresh", CTLTYPE_INT \| CTLFLAG_RWTUN, sc, 0,
	+ "lo_thresh", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, sc, 0,
	ads111x_sysctl_lothresh, "I", "comparator low threshold");
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "hi_thresh", CTLTYPE_INT \| CTLFLAG_RWTUN, sc, 0,
	+ "hi_thresh", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, sc, 0,
	ads111x_sysctl_hithresh, "I", "comparator high threshold");

	/* Set up channels based on metadata or default config. */
	Index: head/sys/dev/iicbus/adt746x.c
	===================================================================
	--- head/sys/dev/iicbus/adt746x.c
	+++ head/sys/dev/iicbus/adt746x.c
	@@ -495,7 +495,7 @@
	ctx = device_get_sysctl_ctx(dev);
	fanroot_oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "fans",
	- CTLFLAG_RD, 0, "ADT Fan Information");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "ADT Fan Information");

	/* Now we can fill the properties into the allocated struct. */
	sc->sc_nfans = adt746x_fill_fan_prop(dev);
	@@ -517,12 +517,13 @@
	adt746x_fan_get_pwm(&sc->sc_fans[i]);

	oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(fanroot_oid),
	- OID_AUTO, sysctl_name, CTLFLAG_RD, 0, "Fan Information");
	+ OID_AUTO, sysctl_name, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Fan Information");

	/* I use i to pass the fan id. */
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "pwm", CTLTYPE_INT \| CTLFLAG_RW, dev, i,
	- adt746x_fanrpm_sysctl, "I", "Fan PWM in %");
	+ "pwm", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, dev,
	+ i, adt746x_fanrpm_sysctl, "I", "Fan PWM in %");
	}

	/* Dump fan location & type. */
	@@ -621,7 +622,7 @@
	ctx = device_get_sysctl_ctx(dev);
	sensroot_oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "sensors",
	- CTLFLAG_RD, 0, "ADT Sensor Information");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "ADT Sensor Information");

	/* Add the sysctl for the sensors. */
	for (i = 0; i < sc->sc_nsensors; i++) {
	@@ -632,9 +633,8 @@
	}
	sysctl_name[j] = 0;
	oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(sensroot_oid),
	- OID_AUTO,
	- sysctl_name, CTLFLAG_RD, 0,
	- "Sensor Information");
	+ OID_AUTO, sysctl_name, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Sensor Information");
	if (sc->sc_sensors[i].type == ADT746X_SENSOR_TEMP) {
	unit = "temp";
	desc = "sensor unit (C)";
	@@ -647,10 +647,10 @@
	}
	/* I use i to pass the sensor id. */
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- unit, CTLTYPE_INT \| CTLFLAG_RD, dev, i,
	- adt746x_sensor_sysctl,
	- sc->sc_sensors[i].type == ADT746X_SENSOR_TEMP ?
	- "IK" : "I", desc);
	+ unit, CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, dev, i,
	+ adt746x_sensor_sysctl,
	+ sc->sc_sensors[i].type == ADT746X_SENSOR_TEMP ?
	+ "IK" : "I", desc);
	}

	/* Dump sensor location & type. */
	Index: head/sys/dev/iicbus/ds1631.c
	===================================================================
	--- head/sys/dev/iicbus/ds1631.c
	+++ head/sys/dev/iicbus/ds1631.c
	@@ -314,7 +314,7 @@
	ctx = device_get_sysctl_ctx(dev);
	sensroot_oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "sensor",
	- CTLFLAG_RD, 0, "DS1631 Sensor Information");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "DS1631 Sensor Information");

	if (OF_getprop(child, "hwsensor-zone", &sc->sc_sensor.zone,
	sizeof(int)) < 0)
	@@ -358,8 +358,8 @@

	sprintf(sysctl_desc,"%s %s", sc->sc_sensor.name, "(C)");
	oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(sensroot_oid),
	- OID_AUTO, sysctl_name, CTLFLAG_RD, 0,
	- "Sensor Information");
	+ OID_AUTO, sysctl_name, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Sensor Information");
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, "temp",
	CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, dev,
	0, ds1631_sensor_sysctl, "IK", sysctl_desc);
	Index: head/sys/dev/iicbus/ds1775.c
	===================================================================
	--- head/sys/dev/iicbus/ds1775.c
	+++ head/sys/dev/iicbus/ds1775.c
	@@ -189,7 +189,7 @@
	ctx = device_get_sysctl_ctx(dev);
	sensroot_oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "sensor",
	- CTLFLAG_RD, 0, "DS1775 Sensor Information");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "DS1775 Sensor Information");

	if (OF_getprop(child, "hwsensor-zone", &sc->sc_sensor.zone,
	sizeof(int)) < 0)
	@@ -225,8 +225,8 @@

	sprintf(sysctl_desc,"%s %s", sc->sc_sensor.name, "(C)");
	oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(sensroot_oid),
	- OID_AUTO, sysctl_name, CTLFLAG_RD, 0,
	- "Sensor Information");
	+ OID_AUTO, sysctl_name, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Sensor Information");
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, "temp",
	CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, dev,
	0, ds1775_sensor_sysctl, "IK", sysctl_desc);
	Index: head/sys/dev/iicbus/max6690.c
	===================================================================
	--- head/sys/dev/iicbus/max6690.c
	+++ head/sys/dev/iicbus/max6690.c
	@@ -276,7 +276,7 @@
	ctx = device_get_sysctl_ctx(dev);
	sensroot_oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "sensor",
	- CTLFLAG_RD, 0, "MAX6690 Sensor Information");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "MAX6690 Sensor Information");

	/* Now we can fill the properties into the allocated struct. */
	sc->sc_nsensors = max6690_fill_sensor_prop(dev);
	@@ -298,13 +298,12 @@
	sprintf(sysctl_desc,"%s %s", sc->sc_sensors[i].therm.name,
	"(C)");
	oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(sensroot_oid),
	- OID_AUTO,
	- sysctl_name, CTLFLAG_RD, 0,
	- "Sensor Information");
	+ OID_AUTO, sysctl_name, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Sensor Information");
	/* I use i to pass the sensor id. */
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, "temp",
	- CTLTYPE_INT \| CTLFLAG_RD, dev, i % 2,
	- max6690_sensor_sysctl, "IK", sysctl_desc);
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, dev, i % 2,
	+ max6690_sensor_sysctl, "IK", sysctl_desc);

	}
	/* Dump sensor location & ID. */
	Index: head/sys/dev/ioat/ioat.c
	===================================================================
	--- head/sys/dev/ioat/ioat.c
	+++ head/sys/dev/ioat/ioat.c
	@@ -114,7 +114,8 @@
	} while (0)

	MALLOC_DEFINE(M_IOAT, "ioat", "ioat driver memory allocations");
	-SYSCTL_NODE(_hw, OID_AUTO, ioat, CTLFLAG_RD, 0, "ioat node");
	+SYSCTL_NODE(_hw, OID_AUTO, ioat, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "ioat node");

	static int g_force_legacy_interrupts;
	SYSCTL_INT(_hw_ioat, OID_AUTO, force_legacy_interrupts, CTLFLAG_RDTUN,
	@@ -1932,8 +1933,8 @@
	&ioat->intrdelay_max, 0,
	"Maximum configurable INTRDELAY on this channel (microseconds)");

	- tmp = SYSCTL_ADD_NODE(ctx, par, OID_AUTO, "state", CTLFLAG_RD, NULL,
	- "IOAT channel internal state");
	+ tmp = SYSCTL_ADD_NODE(ctx, par, OID_AUTO, "state",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "IOAT channel internal state");
	state = SYSCTL_CHILDREN(tmp);

	SYSCTL_ADD_UINT(ctx, state, OID_AUTO, "ring_size_order", CTLFLAG_RD,
	@@ -1951,23 +1952,24 @@
	"submitter processing");

	SYSCTL_ADD_PROC(ctx, state, OID_AUTO, "chansts",
	- CTLTYPE_STRING \| CTLFLAG_RD, ioat, 0, sysctl_handle_chansts, "A",
	- "String of the channel status");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, ioat, 0,
	+ sysctl_handle_chansts, "A", "String of the channel status");

	SYSCTL_ADD_U16(ctx, state, OID_AUTO, "intrdelay", CTLFLAG_RD,
	&ioat->cached_intrdelay, 0,
	"Current INTRDELAY on this channel (cached, microseconds)");

	- tmp = SYSCTL_ADD_NODE(ctx, par, OID_AUTO, "hammer", CTLFLAG_RD, NULL,
	+ tmp = SYSCTL_ADD_NODE(ctx, par, OID_AUTO, "hammer",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"Big hammers (mostly for testing)");
	hammer = SYSCTL_CHILDREN(tmp);

	SYSCTL_ADD_PROC(ctx, hammer, OID_AUTO, "force_hw_reset",
	- CTLTYPE_INT \| CTLFLAG_RW, ioat, 0, sysctl_handle_reset, "I",
	- "Set to non-zero to reset the hardware");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, ioat, 0,
	+ sysctl_handle_reset, "I", "Set to non-zero to reset the hardware");

	- tmp = SYSCTL_ADD_NODE(ctx, par, OID_AUTO, "stats", CTLFLAG_RD, NULL,
	- "IOAT channel statistics");
	+ tmp = SYSCTL_ADD_NODE(ctx, par, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "IOAT channel statistics");
	statpar = SYSCTL_CHILDREN(tmp);

	SYSCTL_ADD_UQUAD(ctx, statpar, OID_AUTO, "interrupts",
	@@ -1990,8 +1992,8 @@
	"The raw CHANERR when the channel was last halted");

	SYSCTL_ADD_PROC(ctx, statpar, OID_AUTO, "desc_per_interrupt",
	- CTLTYPE_STRING \| CTLFLAG_RD, ioat, 0, sysctl_handle_dpi, "A",
	- "Descriptors per interrupt");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, ioat, 0,
	+ sysctl_handle_dpi, "A", "Descriptors per interrupt");
	}

	static void
	Index: head/sys/dev/ioat/ioat_test.c
	===================================================================
	--- head/sys/dev/ioat/ioat_test.c
	+++ head/sys/dev/ioat/ioat_test.c
	@@ -576,8 +576,9 @@
	enable_ioat_test(enabled);
	return (0);
	}
	-SYSCTL_PROC(_hw_ioat, OID_AUTO, enable_ioat_test, CTLTYPE_INT \| CTLFLAG_RW,
	- 0, 0, sysctl_enable_ioat_test, "I",
	+SYSCTL_PROC(_hw_ioat, OID_AUTO, enable_ioat_test,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, 0,
	+ sysctl_enable_ioat_test, "I",
	"Non-zero: Enable the /dev/ioat_test device");

	void
	Index: head/sys/dev/ipmi/ipmi.c
	===================================================================
	--- head/sys/dev/ipmi/ipmi.c
	+++ head/sys/dev/ipmi/ipmi.c
	@@ -93,7 +93,7 @@
	static int wd_pretimeout_countdown = 120; /* sec */
	static int cycle_wait = 10; /* sec */

	-static SYSCTL_NODE(_hw, OID_AUTO, ipmi, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_hw, OID_AUTO, ipmi, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"IPMI driver parameters");
	SYSCTL_INT(_hw_ipmi, OID_AUTO, on, CTLFLAG_RWTUN,
	&on, 0, "");
	Index: head/sys/dev/ipw/if_ipw.c
	===================================================================
	--- head/sys/dev/ipw/if_ipw.c
	+++ head/sys/dev/ipw/if_ipw.c
	@@ -330,13 +330,14 @@
	*/
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "radio",
	- CTLTYPE_INT \| CTLFLAG_RD, sc, 0, ipw_sysctl_radio, "I",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	+ ipw_sysctl_radio, "I",
	"radio transmitter switch state (0=off, 1=on)");

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats",
	- CTLTYPE_OPAQUE \| CTLFLAG_RD, sc, 0, ipw_sysctl_stats, "S",
	- "statistics");
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	+ ipw_sysctl_stats, "S", "statistics");

	/*
	* Hook our interrupt after all initialization is complete.
	Index: head/sys/dev/isci/isci_sysctl.c
	===================================================================
	--- head/sys/dev/isci/isci_sysctl.c
	+++ head/sys/dev/isci/isci_sysctl.c
	@@ -249,40 +249,44 @@
	struct sysctl_oid *sysctl_tree = device_get_sysctl_tree(isci->device);

	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "coalesce_timeout", CTLTYPE_UINT \| CTLFLAG_RW, isci, 0,
	- isci_sysctl_coalesce_timeout, "IU",
	+ "coalesce_timeout", CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ isci, 0, isci_sysctl_coalesce_timeout, "IU",
	"Interrupt coalescing timeout (in microseconds)");

	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "coalesce_number", CTLTYPE_UINT \| CTLFLAG_RW, isci, 0,
	- isci_sysctl_coalesce_number, "IU",
	+ "coalesce_number", CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ isci, 0, isci_sysctl_coalesce_number, "IU",
	"Interrupt coalescing number");

	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "reset_remote_device_on_controller0", CTLTYPE_UINT\| CTLFLAG_RW,
	- isci, 0, isci_sysctl_reset_remote_device_on_controller0, "IU",
	+ "reset_remote_device_on_controller0",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, isci, 0,
	+ isci_sysctl_reset_remote_device_on_controller0, "IU",
	"Reset remote device on controller 0");

	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "reset_remote_device_on_controller1", CTLTYPE_UINT\| CTLFLAG_RW,
	+ "reset_remote_device_on_controller1",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	isci, 0, isci_sysctl_reset_remote_device_on_controller1, "IU",
	"Reset remote device on controller 1");

	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "stop_phy", CTLTYPE_UINT\| CTLFLAG_RW, isci, 0, isci_sysctl_stop_phy,
	- "IU", "Stop PHY on a controller");
	+ "stop_phy", CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, isci,
	+ 0, isci_sysctl_stop_phy, "IU", "Stop PHY on a controller");

	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "start_phy", CTLTYPE_UINT\| CTLFLAG_RW, isci, 0,
	- isci_sysctl_start_phy, "IU", "Start PHY on a controller");
	+ "start_phy", CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, isci,
	+ 0, isci_sysctl_start_phy, "IU", "Start PHY on a controller");

	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "log_frozen_lun_masks", CTLTYPE_UINT\| CTLFLAG_RW, isci, 0,
	+ "log_frozen_lun_masks",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, isci, 0,
	isci_sysctl_log_frozen_lun_masks, "IU",
	"Log frozen lun masks to kernel log");

	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "fail_on_task_timeout", CTLTYPE_UINT \| CTLFLAG_RW, isci, 0,
	+ "fail_on_task_timeout",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, isci, 0,
	isci_sysctl_fail_on_task_timeout, "IU",
	"Fail a command that has encountered a task management timeout");
	}
	Index: head/sys/dev/iscsi_initiator/isc_sm.c
	===================================================================
	--- head/sys/dev/iscsi_initiator/isc_sm.c
	+++ head/sys/dev/iscsi_initiator/isc_sm.c
	@@ -637,14 +637,14 @@
	SYSCTL_CHILDREN(sp->isc->oid),
	OID_AUTO,
	devtoname(sp->dev) + 5, // iscsi0
	- CTLFLAG_RD,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE,
	0,
	"initiator");
	SYSCTL_ADD_PROC(&sp->clist,
	SYSCTL_CHILDREN(sp->oid),
	OID_AUTO,
	"targetname",
	- CTLTYPE_STRING \| CTLFLAG_RD,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	(void *)&sp->opt.targetName, 0,
	sysctl_handle_string, "A", "target name");

	@@ -652,7 +652,7 @@
	SYSCTL_CHILDREN(sp->oid),
	OID_AUTO,
	"targeaddress",
	- CTLTYPE_STRING \| CTLFLAG_RD,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	(void *)&sp->opt.targetAddress, 0,
	sysctl_handle_string, "A", "target address");

	@@ -660,7 +660,7 @@
	SYSCTL_CHILDREN(sp->oid),
	OID_AUTO,
	"stats",
	- CTLTYPE_STRING \| CTLFLAG_RD,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	(void *)sp, 0,
	isc_dump_stats, "A", "statistics");

	Index: head/sys/dev/iscsi_initiator/iscsi.c
	===================================================================
	--- head/sys/dev/iscsi_initiator/iscsi.c
	+++ head/sys/dev/iscsi_initiator/iscsi.c
	@@ -737,7 +737,7 @@
	SYSCTL_STATIC_CHILDREN(_net),
	OID_AUTO,
	"iscsi_initiator",
	- CTLFLAG_RD,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE,
	0,
	"iSCSI Subsystem");

	Index: head/sys/dev/iser/icl_iser.c
	===================================================================
	--- head/sys/dev/iser/icl_iser.c
	+++ head/sys/dev/iser/icl_iser.c
	@@ -26,7 +26,8 @@

	#include "icl_iser.h"

	-SYSCTL_NODE(_kern, OID_AUTO, iser, CTLFLAG_RW, 0, "iSER module");
	+SYSCTL_NODE(_kern, OID_AUTO, iser, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "iSER module");
	int iser_debug = 0;
	SYSCTL_INT(_kern_iser, OID_AUTO, debug, CTLFLAG_RWTUN,
	&iser_debug, 0, "Enable iser debug messages");
	Index: head/sys/dev/isl/isl.c
	===================================================================
	--- head/sys/dev/isl/isl.c
	+++ head/sys/dev/isl/isl.c
	@@ -205,38 +205,38 @@

	if (use_als) {
	SYSCTL_ADD_PROC(sysctl_ctx,
	- SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "als", CTLTYPE_INT \| CTLFLAG_RD,
	- sc, ISL_METHOD_ALS, isl_sysctl, "I",
	- "Current ALS sensor read-out");
	+ SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, "als",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ ISL_METHOD_ALS, isl_sysctl, "I",
	+ "Current ALS sensor read-out");
	}

	if (use_ir) {
	SYSCTL_ADD_PROC(sysctl_ctx,
	- SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "ir", CTLTYPE_INT \| CTLFLAG_RD,
	- sc, ISL_METHOD_IR, isl_sysctl, "I",
	- "Current IR sensor read-out");
	+ SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, "ir",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ ISL_METHOD_IR, isl_sysctl, "I",
	+ "Current IR sensor read-out");
	}

	if (use_prox) {
	SYSCTL_ADD_PROC(sysctl_ctx,
	- SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "prox", CTLTYPE_INT \| CTLFLAG_RD,
	- sc, ISL_METHOD_PROX, isl_sysctl, "I",
	- "Current proximity sensor read-out");
	+ SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, "prox",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ ISL_METHOD_PROX, isl_sysctl, "I",
	+ "Current proximity sensor read-out");
	}

	SYSCTL_ADD_PROC(sysctl_ctx,
	- SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "resolution", CTLTYPE_INT \| CTLFLAG_RD,
	- sc, ISL_METHOD_RESOLUTION, isl_sysctl, "I",
	- "Current proximity sensor resolution");
	+ SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, "resolution",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ ISL_METHOD_RESOLUTION, isl_sysctl, "I",
	+ "Current proximity sensor resolution");

	SYSCTL_ADD_PROC(sysctl_ctx,
	- SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "range", CTLTYPE_INT \| CTLFLAG_RD,
	- sc, ISL_METHOD_RANGE, isl_sysctl, "I",
	+ SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, "range",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc,
	+ ISL_METHOD_RANGE, isl_sysctl, "I",
	"Current proximity sensor range");

	return (0);
	Index: head/sys/dev/isp/isp_freebsd.c
	===================================================================
	--- head/sys/dev/isp/isp_freebsd.c
	+++ head/sys/dev/isp/isp_freebsd.c
	@@ -203,7 +203,8 @@
	if (chan > 0) {
	snprintf(name, sizeof(name), "chan%d", chan);
	tree = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(tree),
	- OID_AUTO, name, CTLFLAG_RW, 0, "Virtual channel");
	+ OID_AUTO, name, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Virtual channel");
	}
	SYSCTL_ADD_QUAD(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	"wwnn", CTLFLAG_RD, &fcp->isp_wwnn,
	@@ -223,8 +224,8 @@
	"Cause a Lost Frame on a Read");
	#endif
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "role", CTLTYPE_INT \| CTLFLAG_RW, isp, chan,
	- isp_role_sysctl, "I", "Current role");
	+ "role", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ isp, chan, isp_role_sysctl, "I", "Current role");
	SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	"speed", CTLFLAG_RD, &fcp->isp_gbspeed, 0,
	"Connection speed in gigabits");
	Index: head/sys/dev/iwi/if_iwi.c
	===================================================================
	--- head/sys/dev/iwi/if_iwi.c
	+++ head/sys/dev/iwi/if_iwi.c
	@@ -3334,12 +3334,13 @@
	struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "radio",
	- CTLTYPE_INT \| CTLFLAG_RD, sc, 0, iwi_sysctl_radio, "I",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	+ iwi_sysctl_radio, "I",
	"radio transmitter switch state (0=off, 1=on)");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "stats",
	- CTLTYPE_OPAQUE \| CTLFLAG_RD, sc, 0, iwi_sysctl_stats, "S",
	- "statistics");
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	+ iwi_sysctl_stats, "S", "statistics");

	sc->bluetooth = 0;
	SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "bluetooth",
	@@ -3513,8 +3514,8 @@
	callout_init_mtx(&sc->sc_ledtimer, &sc->sc_mtx, 0);

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "softled", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	- iwi_sysctl_softled, "I", "enable/disable software LED support");
	+ "softled", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ iwi_sysctl_softled, "I", "enable/disable software LED support");
	SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	"ledpin", CTLFLAG_RW, &sc->sc_ledpin, 0,
	"pin setting to turn activity LED on");
	Index: head/sys/dev/jme/if_jme.c
	===================================================================
	--- head/sys/dev/jme/if_jme.c
	+++ head/sys/dev/jme/if_jme.c
	@@ -994,24 +994,24 @@
	child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->jme_dev));

	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "tx_coal_to",
	- CTLTYPE_INT \| CTLFLAG_RW, &sc->jme_tx_coal_to, 0,
	- sysctl_hw_jme_tx_coal_to, "I", "jme tx coalescing timeout");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sc->jme_tx_coal_to,
	+ 0, sysctl_hw_jme_tx_coal_to, "I", "jme tx coalescing timeout");

	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "tx_coal_pkt",
	- CTLTYPE_INT \| CTLFLAG_RW, &sc->jme_tx_coal_pkt, 0,
	- sysctl_hw_jme_tx_coal_pkt, "I", "jme tx coalescing packet");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sc->jme_tx_coal_pkt,
	+ 0, sysctl_hw_jme_tx_coal_pkt, "I", "jme tx coalescing packet");

	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rx_coal_to",
	- CTLTYPE_INT \| CTLFLAG_RW, &sc->jme_rx_coal_to, 0,
	- sysctl_hw_jme_rx_coal_to, "I", "jme rx coalescing timeout");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sc->jme_rx_coal_to,
	+ 0, sysctl_hw_jme_rx_coal_to, "I", "jme rx coalescing timeout");

	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rx_coal_pkt",
	- CTLTYPE_INT \| CTLFLAG_RW, &sc->jme_rx_coal_pkt, 0,
	- sysctl_hw_jme_rx_coal_pkt, "I", "jme rx coalescing packet");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sc->jme_rx_coal_pkt,
	+ 0, sysctl_hw_jme_rx_coal_pkt, "I", "jme rx coalescing packet");

	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "process_limit",
	- CTLTYPE_INT \| CTLFLAG_RW, &sc->jme_process_limit, 0,
	- sysctl_hw_jme_proc_limit, "I",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &sc->jme_process_limit, 0, sysctl_hw_jme_proc_limit, "I",
	"max number of Rx events to process");

	/* Pull in device tunables. */
	@@ -1084,13 +1084,13 @@
	if ((sc->jme_flags & JME_FLAG_HWMIB) == 0)
	return;

	- tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "JME statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "JME statistics");
	parent = SYSCTL_CHILDREN(tree);

	/* Rx statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx", CTLFLAG_RD,
	- NULL, "Rx MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Rx MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	JME_SYSCTL_STAT_ADD32(ctx, child, "good_frames",
	&stats->rx_good_frames, "Good frames");
	@@ -1106,8 +1106,8 @@
	&stats->rx_bad_frames, "Bad frames");

	/* Tx statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx", CTLFLAG_RD,
	- NULL, "Tx MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Tx MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	JME_SYSCTL_STAT_ADD32(ctx, child, "good_frames",
	&stats->tx_good_frames, "Good frames");
	Index: head/sys/dev/kbd/kbd.c
	===================================================================
	--- head/sys/dev/kbd/kbd.c
	+++ head/sys/dev/kbd/kbd.c
	@@ -85,7 +85,8 @@
	static keyboard_t **keyboard = &kbd_ini;

	static int keymap_restrict_change;
	-static SYSCTL_NODE(_hw, OID_AUTO, kbd, CTLFLAG_RD, 0, "kbd");
	+static SYSCTL_NODE(_hw, OID_AUTO, kbd, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "kbd");
	SYSCTL_INT(_hw_kbd, OID_AUTO, keymap_restrict_change, CTLFLAG_RW,
	&keymap_restrict_change, 0, "restrict ability to change keymap");

	Index: head/sys/dev/liquidio/lio_sysctl.c
	===================================================================
	--- head/sys/dev/liquidio/lio_sysctl.c
	+++ head/sys/dev/liquidio/lio_sysctl.c
	@@ -155,48 +155,46 @@
	oct_dev->fw_info.lio_firmware_version, 0,
	"Firmware version");
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "stats_interval",
	- CTLTYPE_INT \| CTLFLAG_RW, lio, 0,
	- lio_set_stats_interval, "I",
	- "Set Stats Updation Timer in milli seconds");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, lio, 0,
	+ lio_set_stats_interval, "I",
	+ "Set Stats Updation Timer in milli seconds");
	SYSCTL_ADD_UQUAD(ctx, child, OID_AUTO, "link_state_changes",
	CTLFLAG_RD, &lio->link_changes, "Link Change Counter");
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "eeprom-dump",
	CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE, lio, 0,
	lio_get_eeprom, "A", "EEPROM information");
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "fc",
	- CTLTYPE_INT \| CTLFLAG_RW, lio, 0,
	- lio_get_set_pauseparam, "I",
	- "Get and set pause parameters.\n" \
	- "0 - off\n" \
	- "1 - rx pause\n" \
	- "2 - tx pause \n" \
	- "3 - rx and tx pause");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, lio, 0,
	+ lio_get_set_pauseparam, "I",
	+ "Get and set pause parameters.\n" \
	+ "0 - off\n" \
	+ "1 - rx pause\n" \
	+ "2 - tx pause \n" \
	+ "3 - rx and tx pause");
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "register-dump",
	- CTLTYPE_STRING \| CTLFLAG_RD,
	- lio, 0, lio_get_regs, "A",
	- "Dump registers in raw format");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, lio, 0,
	+ lio_get_regs, "A", "Dump registers in raw format");
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "fwmsglevel",
	- CTLTYPE_INT \| CTLFLAG_RW, lio, 0,
	- lio_get_set_fwmsglevel,
	- "I", "Get or set firmware message level");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, lio, 0,
	+ lio_get_set_fwmsglevel, "I", "Get or set firmware message level");
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rxq_descriptors",
	- CTLTYPE_INT \| CTLFLAG_RW, lio, LIO_SET_RING_RX,
	- lio_set_ringparam, "I", "Set RX ring parameter");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, lio, LIO_SET_RING_RX,
	+ lio_set_ringparam, "I", "Set RX ring parameter");
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "txq_descriptors",
	- CTLTYPE_INT \| CTLFLAG_RW, lio, LIO_SET_RING_TX,
	- lio_set_ringparam, "I", "Set TX ring parameter");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, lio, LIO_SET_RING_TX,
	+ lio_set_ringparam, "I", "Set TX ring parameter");
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "max_rxq_descriptors",
	- CTLTYPE_INT \| CTLFLAG_RD, lio, LIO_SET_RING_RX,
	- lio_get_ringparam, "I", "Max RX descriptors");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, lio, LIO_SET_RING_RX,
	+ lio_get_ringparam, "I", "Max RX descriptors");
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "max_txq_descriptors",
	- CTLTYPE_INT \| CTLFLAG_RD, lio, LIO_SET_RING_TX,
	- lio_get_ringparam, "I", "Max TX descriptors");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, lio, LIO_SET_RING_TX,
	+ lio_get_ringparam, "I", "Max TX descriptors");
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "active_queues",
	- CTLTYPE_INT \| CTLFLAG_RW, lio, 0, lio_set_channels,
	- "I", "Set channels information");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, lio, 0,
	+ lio_set_channels, "I", "Set channels information");
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "max_queues",
	- CTLTYPE_INT \| CTLFLAG_RD, lio, 0, lio_get_channels,
	- "I", "Get channels information");
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, lio, 0,
	+ lio_get_channels, "I", "Get channels information");
	SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "tx_budget",
	CTLFLAG_RW, &oct_dev->tx_budget,
	0, "TX process pkt budget");
	@@ -206,7 +204,7 @@

	/* IRQ Coalescing Parameters */
	root_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "coalesce",
	- CTLFLAG_RD, NULL, "Get and Set Coalesce");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Get and Set Coalesce");

	root_list = SYSCTL_CHILDREN(root_node);

	@@ -271,13 +269,13 @@
	"QU", NULL);

	/* Root Node of all the Stats */
	- root_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "Root Node of all the Stats");
	+ root_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Root Node of all the Stats");
	root_list = SYSCTL_CHILDREN(root_node);

	/* Firmware Tx Stats */
	- stat_node = SYSCTL_ADD_NODE(ctx, root_list, OID_AUTO, "fwtx",CTLFLAG_RD,
	- NULL, "Firmware Tx Statistics");
	+ stat_node = SYSCTL_ADD_NODE(ctx, root_list, OID_AUTO, "fwtx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Firmware Tx Statistics");
	stat_list = SYSCTL_CHILDREN(stat_node);

	SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "tx_total_sent", CTLFLAG_RD,
	@@ -317,7 +315,7 @@

	/* MAC Tx Stats */
	stat_node = SYSCTL_ADD_NODE(ctx, root_list, OID_AUTO, "mactx",
	- CTLFLAG_RD, NULL, "MAC Tx Statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "MAC Tx Statistics");
	stat_list = SYSCTL_CHILDREN(stat_node);

	SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "mac_tx_total_pkts",
	@@ -370,7 +368,7 @@

	/* Firmware Rx Stats */
	stat_node = SYSCTL_ADD_NODE(ctx, root_list, OID_AUTO, "fwrx",
	- CTLFLAG_RD, NULL, "Firmware Rx Statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Firmware Rx Statistics");
	stat_list = SYSCTL_CHILDREN(stat_node);

	SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "rx_total_rcvd", CTLFLAG_RD,
	@@ -437,7 +435,7 @@
	"Firmware Rx Packets Forward Rate");
	/* MAC Rx Stats */
	stat_node = SYSCTL_ADD_NODE(ctx, root_list, OID_AUTO, "macrx",
	- CTLFLAG_RD, NULL, "MAC Rx Statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "MAC Rx Statistics");
	stat_list = SYSCTL_CHILDREN(stat_node);

	SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "mac_rx_total_rcvd",
	@@ -484,7 +482,7 @@

	snprintf(namebuf, QUEUE_NAME_LEN, "tx-%d", i);
	queue_node = SYSCTL_ADD_NODE(ctx, root_list, OID_AUTO, namebuf,
	- CTLFLAG_RD, NULL, "Input Queue Name");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Input Queue Name");
	queue_list = SYSCTL_CHILDREN(queue_node);

	/* packets to network port */
	@@ -567,8 +565,7 @@

	snprintf(namebuf, QUEUE_NAME_LEN, "rx-%d", i);
	queue_node = SYSCTL_ADD_NODE(ctx, root_list, OID_AUTO, namebuf,
	- CTLFLAG_RD, NULL,
	- "Output Queue Name");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Output Queue Name");
	queue_list = SYSCTL_CHILDREN(queue_node);

	/* packets send to TCP/IP network stack */
	Index: head/sys/dev/malo/if_malo.c
	===================================================================
	--- head/sys/dev/malo/if_malo.c
	+++ head/sys/dev/malo/if_malo.c
	@@ -64,7 +64,7 @@

	#include <dev/malo/if_malo.h>

	-SYSCTL_NODE(_hw, OID_AUTO, malo, CTLFLAG_RD, 0,
	+SYSCTL_NODE(_hw, OID_AUTO, malo, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Marvell 88w8335 driver parameters");

	static int malo_txcoalesce = 8; /* # tx pkts to q before poking f/w*/
	Index: head/sys/dev/malo/if_malo_pci.c
	===================================================================
	--- head/sys/dev/malo/if_malo_pci.c
	+++ head/sys/dev/malo/if_malo_pci.c
	@@ -84,7 +84,7 @@
	* Tunable variables.
	*/
	SYSCTL_DECL(_hw_malo);
	-static SYSCTL_NODE(_hw_malo, OID_AUTO, pci, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_hw_malo, OID_AUTO, pci, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Marvell 88W8335 driver PCI parameters");

	static int msi_disable = 0; /* MSI disabled */
	Index: head/sys/dev/mfi/mfi.c
	===================================================================
	--- head/sys/dev/mfi/mfi.c
	+++ head/sys/dev/mfi/mfi.c
	@@ -130,7 +130,8 @@
	static void mfi_check_command_post(struct mfi_softc sc, struct mfi_command cm);
	static int mfi_check_for_sscd(struct mfi_softc sc, struct mfi_command cm);

	-SYSCTL_NODE(_hw, OID_AUTO, mfi, CTLFLAG_RD, 0, "MFI driver parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, mfi, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "MFI driver parameters");
	static int mfi_event_locale = MFI_EVT_LOCALE_ALL;
	SYSCTL_INT(_hw_mfi, OID_AUTO, event_locale, CTLFLAG_RWTUN, &mfi_event_locale,
	0, "event message locale");
	Index: head/sys/dev/mge/if_mge.c
	===================================================================
	--- head/sys/dev/mge/if_mge.c
	+++ head/sys/dev/mge/if_mge.c
	@@ -2143,15 +2143,15 @@
	ctx = device_get_sysctl_ctx(sc->dev);
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev));
	tree = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "int_coal",
	- CTLFLAG_RD, 0, "MGE Interrupts coalescing");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "MGE Interrupts coalescing");
	children = SYSCTL_CHILDREN(tree);

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rx_time",
	- CTLTYPE_UINT \| CTLFLAG_RW, sc, MGE_IC_RX, mge_sysctl_ic,
	- "I", "IC RX time threshold");
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, MGE_IC_RX,
	+ mge_sysctl_ic, "I", "IC RX time threshold");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tx_time",
	- CTLTYPE_UINT \| CTLFLAG_RW, sc, MGE_IC_TX, mge_sysctl_ic,
	- "I", "IC TX time threshold");
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, MGE_IC_TX,
	+ mge_sysctl_ic, "I", "IC TX time threshold");
	}

	static int
	Index: head/sys/dev/mlx4/mlx4_core/mlx4_main.c
	===================================================================
	--- head/sys/dev/mlx4/mlx4_core/mlx4_main.c
	+++ head/sys/dev/mlx4/mlx4_core/mlx4_main.c
	@@ -3792,7 +3792,8 @@
	ctx = &dev->hw_ctx;
	sysctl_ctx_init(ctx);
	node = SYSCTL_ADD_NODE(ctx,SYSCTL_CHILDREN(pdev->dev.kobj.oidp),
	- OID_AUTO, "hw" , CTLFLAG_RD, 0, "mlx4 dev hw information");
	+ OID_AUTO, "hw" , CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "mlx4 dev hw information");
	if (node != NULL) {
	node_list = SYSCTL_CHILDREN(node);
	SYSCTL_ADD_STRING(ctx, node_list, OID_AUTO,
	Index: head/sys/dev/mlx4/mlx4_en/mlx4_en_netdev.c
	===================================================================
	--- head/sys/dev/mlx4/mlx4_en/mlx4_en_netdev.c
	+++ head/sys/dev/mlx4/mlx4_en/mlx4_en_netdev.c
	@@ -2664,9 +2664,10 @@

	sysctl_ctx_init(ctx);
	priv->conf_sysctl = SYSCTL_ADD_NODE(ctx, SYSCTL_STATIC_CHILDREN(_hw),
	- OID_AUTO, dev->if_xname, CTLFLAG_RD, 0, "mlx4 10gig ethernet");
	+ OID_AUTO, dev->if_xname, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "mlx4 10gig ethernet");
	node = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(priv->conf_sysctl), OID_AUTO,
	- "conf", CTLFLAG_RD, NULL, "Configuration");
	+ "conf", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Configuration");
	node_list = SYSCTL_CHILDREN(node);

	SYSCTL_ADD_UINT(ctx, node_list, OID_AUTO, "msg_enable",
	@@ -2698,7 +2699,8 @@
	"PCI device name");
	/* Add coalescer configuration. */
	coal = SYSCTL_ADD_NODE(ctx, node_list, OID_AUTO,
	- "coalesce", CTLFLAG_RD, NULL, "Interrupt coalesce configuration");
	+ "coalesce", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "Interrupt coalesce configuration");
	coal_list = SYSCTL_CHILDREN(coal);
	SYSCTL_ADD_UINT(ctx, coal_list, OID_AUTO, "pkt_rate_low",
	CTLFLAG_RW, &priv->pkt_rate_low, 0,
	@@ -2738,7 +2740,7 @@
	ctx = &priv->stat_ctx;
	sysctl_ctx_init(ctx);
	priv->stat_sysctl = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(priv->conf_sysctl), OID_AUTO,
	- "stat", CTLFLAG_RD, NULL, "Statistics");
	+ "stat", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Statistics");
	node_list = SYSCTL_CHILDREN(priv->stat_sysctl);

	#ifdef MLX4_EN_PERF_STAT
	@@ -2860,7 +2862,7 @@
	tx_ring = priv->tx_ring[i];
	snprintf(namebuf, sizeof(namebuf), "tx_ring%d", i);
	ring_node = SYSCTL_ADD_NODE(ctx, node_list, OID_AUTO, namebuf,
	- CTLFLAG_RD, NULL, "TX Ring");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "TX Ring");
	ring_list = SYSCTL_CHILDREN(ring_node);
	SYSCTL_ADD_U64(ctx, ring_list, OID_AUTO, "packets",
	CTLFLAG_RD, &tx_ring->packets, 0, "TX packets");
	@@ -2877,7 +2879,7 @@
	rx_ring = priv->rx_ring[i];
	snprintf(namebuf, sizeof(namebuf), "rx_ring%d", i);
	ring_node = SYSCTL_ADD_NODE(ctx, node_list, OID_AUTO, namebuf,
	- CTLFLAG_RD, NULL, "RX Ring");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "RX Ring");
	ring_list = SYSCTL_CHILDREN(ring_node);
	SYSCTL_ADD_U64(ctx, ring_list, OID_AUTO, "packets",
	CTLFLAG_RD, &rx_ring->packets, 0, "RX packets");
	Index: head/sys/dev/mlx5/mlx5_core/mlx5_main.c
	===================================================================
	--- head/sys/dev/mlx5/mlx5_core/mlx5_main.c
	+++ head/sys/dev/mlx5/mlx5_core/mlx5_main.c
	@@ -56,7 +56,8 @@
	MODULE_DEPEND(mlx5, firmware, 1, 1, 1);
	MODULE_VERSION(mlx5, 1);

	-SYSCTL_NODE(_hw, OID_AUTO, mlx5, CTLFLAG_RW, 0, "mlx5 hardware controls");
	+SYSCTL_NODE(_hw, OID_AUTO, mlx5, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "mlx5 hardware controls");

	int mlx5_core_debug_mask;
	SYSCTL_INT(_hw_mlx5, OID_AUTO, debug_mask, CTLFLAG_RWTUN,
	@@ -1332,7 +1333,7 @@

	pme_sysctl_node = SYSCTL_ADD_NODE(&dev->sysctl_ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(bsddev)),
	- OID_AUTO, "pme_stats", CTLFLAG_RD, NULL,
	+ OID_AUTO, "pme_stats", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"Port module event statistics");
	if (pme_sysctl_node == NULL) {
	err = -ENOMEM;
	@@ -1340,7 +1341,7 @@
	}
	pme_err_sysctl_node = SYSCTL_ADD_NODE(&dev->sysctl_ctx,
	SYSCTL_CHILDREN(pme_sysctl_node),
	- OID_AUTO, "errors", CTLFLAG_RD, NULL,
	+ OID_AUTO, "errors", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"Port module event error statistics");
	if (pme_err_sysctl_node == NULL) {
	err = -ENOMEM;
	Index: head/sys/dev/mlx5/mlx5_en/mlx5_en_ethtool.c
	===================================================================
	--- head/sys/dev/mlx5/mlx5_en/mlx5_en_ethtool.c
	+++ head/sys/dev/mlx5/mlx5_en/mlx5_en_ethtool.c
	@@ -39,7 +39,7 @@
	sysctl_ctx_init(ctx);

	node = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO,
	- buffer, CTLFLAG_RD, NULL, "Statistics");
	+ buffer, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Statistics");
	if (node == NULL)
	return;
	for (x = 0; x != num; x++) {
	@@ -59,7 +59,7 @@
	sysctl_ctx_init(ctx);

	node = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO,
	- buffer, CTLFLAG_RD, NULL, "Statistics");
	+ buffer, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Statistics");
	if (node == NULL)
	return;
	for (x = 0; x != num; x++) {
	@@ -1317,7 +1317,7 @@
	/* create root node */
	node = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(priv->sysctl_ifnet), OID_AUTO,
	- "diagnostics", CTLFLAG_RD, NULL, "Diagnostics");
	+ "diagnostics", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Diagnostics");
	if (node == NULL)
	return;

	@@ -1389,7 +1389,7 @@
	/* create root node */
	node = SYSCTL_ADD_NODE(&priv->sysctl_ctx,
	SYSCTL_CHILDREN(priv->sysctl_ifnet), OID_AUTO,
	- "conf", CTLFLAG_RW, NULL, "Configuration");
	+ "conf", CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL, "Configuration");
	if (node == NULL)
	return;
	for (x = 0; x != MLX5E_PARAMS_NUM; x++) {
	@@ -1431,7 +1431,8 @@
	/* create fec node */
	fec_node = SYSCTL_ADD_NODE(&priv->sysctl_ctx,
	SYSCTL_CHILDREN(node), OID_AUTO,
	- "fec", CTLFLAG_RW, NULL, "Forward Error Correction");
	+ "fec", CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ "Forward Error Correction");
	if (fec_node == NULL)
	return;

	@@ -1493,7 +1494,8 @@
	/* create qos node */
	qos_node = SYSCTL_ADD_NODE(&priv->sysctl_ctx,
	SYSCTL_CHILDREN(node), OID_AUTO,
	- "qos", CTLFLAG_RW, NULL, "Quality Of Service configuration");
	+ "qos", CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ "Quality Of Service configuration");
	if (qos_node == NULL)
	return;

	Index: head/sys/dev/mlx5/mlx5_en/mlx5_en_hw_tls.c
	===================================================================
	--- head/sys/dev/mlx5/mlx5_en/mlx5_en_hw_tls.c
	+++ head/sys/dev/mlx5/mlx5_en/mlx5_en_hw_tls.c
	@@ -143,7 +143,7 @@

	node = SYSCTL_ADD_NODE(&priv->sysctl_ctx,
	SYSCTL_CHILDREN(priv->sysctl_ifnet), OID_AUTO,
	- "tls", CTLFLAG_RW, NULL, "Hardware TLS offload");
	+ "tls", CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL, "Hardware TLS offload");
	if (node == NULL)
	return (0);

	Index: head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
	===================================================================
	--- head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
	+++ head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
	@@ -1108,7 +1108,7 @@
	static int mlx5e_fast_calibration = 1;
	static int mlx5e_normal_calibration = 30;

	-static SYSCTL_NODE(_hw_mlx5, OID_AUTO, calibr, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_hw_mlx5, OID_AUTO, calibr, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"MLX5 timestamp calibration parameteres");

	SYSCTL_INT(_hw_mlx5_calibr, OID_AUTO, duration, CTLFLAG_RWTUN,
	@@ -3843,8 +3843,8 @@
	mlx5e_add_hw_stats(struct mlx5e_priv *priv)
	{
	SYSCTL_ADD_PROC(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_hw),
	- OID_AUTO, "fw_version", CTLTYPE_STRING \| CTLFLAG_RD, priv, 0,
	- sysctl_firmware, "A", "HCA firmware version");
	+ OID_AUTO, "fw_version", CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ priv, 0, sysctl_firmware, "A", "HCA firmware version");

	SYSCTL_ADD_STRING(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_hw),
	OID_AUTO, "board_id", CTLFLAG_RD, priv->mdev->board_id, 0,
	@@ -4321,14 +4321,16 @@
	/* ifnet sysctl tree */
	sysctl_ctx_init(&priv->sysctl_ctx);
	priv->sysctl_ifnet = SYSCTL_ADD_NODE(&priv->sysctl_ctx, SYSCTL_STATIC_CHILDREN(_dev),
	- OID_AUTO, ifp->if_dname, CTLFLAG_RD, 0, "MLX5 ethernet - interface name");
	+ OID_AUTO, ifp->if_dname, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "MLX5 ethernet - interface name");
	if (priv->sysctl_ifnet == NULL) {
	mlx5_core_err(mdev, "SYSCTL_ADD_NODE() failed\n");
	goto err_free_sysctl;
	}
	snprintf(unit, sizeof(unit), "%d", ifp->if_dunit);
	priv->sysctl_ifnet = SYSCTL_ADD_NODE(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
	- OID_AUTO, unit, CTLFLAG_RD, 0, "MLX5 ethernet - interface unit");
	+ OID_AUTO, unit, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "MLX5 ethernet - interface unit");
	if (priv->sysctl_ifnet == NULL) {
	mlx5_core_err(mdev, "SYSCTL_ADD_NODE() failed\n");
	goto err_free_sysctl;
	@@ -4337,7 +4339,8 @@
	/* HW sysctl tree */
	child = SYSCTL_CHILDREN(device_get_sysctl_tree(mdev->pdev->dev.bsddev));
	priv->sysctl_hw = SYSCTL_ADD_NODE(&priv->sysctl_ctx, child,
	- OID_AUTO, "hw", CTLFLAG_RD, 0, "MLX5 ethernet dev hw");
	+ OID_AUTO, "hw", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "MLX5 ethernet dev hw");
	if (priv->sysctl_hw == NULL) {
	mlx5_core_err(mdev, "SYSCTL_ADD_NODE() failed\n");
	goto err_free_sysctl;
	Index: head/sys/dev/mlx5/mlx5_en/mlx5_en_rl.c
	===================================================================
	--- head/sys/dev/mlx5/mlx5_en/mlx5_en_rl.c
	+++ head/sys/dev/mlx5/mlx5_en/mlx5_en_rl.c
	@@ -770,7 +770,7 @@
	/* create root node */
	node = SYSCTL_ADD_NODE(&rl->ctx,
	SYSCTL_CHILDREN(priv->sysctl_ifnet), OID_AUTO,
	- "rate_limit", CTLFLAG_RW, NULL, "Rate limiting support");
	+ "rate_limit", CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL, "Rate limiting support");

	if (node != NULL) {
	/* create SYSCTLs */
	@@ -782,7 +782,7 @@
	}

	stats = SYSCTL_ADD_NODE(&rl->ctx, SYSCTL_CHILDREN(node),
	- OID_AUTO, "stats", CTLFLAG_RD, NULL,
	+ OID_AUTO, "stats", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"Rate limiting statistics");
	if (stats != NULL) {
	/* create SYSCTLs */
	Index: head/sys/dev/mlx5/mlx5_ib/mlx5_ib_cong.c
	===================================================================
	--- head/sys/dev/mlx5/mlx5_ib/mlx5_ib_cong.c
	+++ head/sys/dev/mlx5/mlx5_ib/mlx5_ib_cong.c
	@@ -423,12 +423,14 @@
	return (err);

	parent = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(dev->ib_dev.dev.kobj.oidp),
	- OID_AUTO, "cong", CTLFLAG_RW, NULL, "Congestion control");
	+ OID_AUTO, "cong", CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ "Congestion control");
	if (parent == NULL)
	return (-ENOMEM);

	node = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(parent),
	- OID_AUTO, "conf", CTLFLAG_RW, NULL, "Configuration");
	+ OID_AUTO, "conf", CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ "Configuration");
	if (node == NULL) {
	sysctl_ctx_free(&dev->congestion.ctx);
	return (-ENOMEM);
	@@ -444,7 +446,8 @@
	}

	node = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(parent),
	- OID_AUTO, "stats", CTLFLAG_RD, NULL, "Statistics");
	+ OID_AUTO, "stats", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "Statistics");
	if (node == NULL) {
	sysctl_ctx_free(&dev->congestion.ctx);
	return (-ENOMEM);
	Index: head/sys/dev/mmc/mmc.c
	===================================================================
	--- head/sys/dev/mmc/mmc.c
	+++ head/sys/dev/mmc/mmc.c
	@@ -134,7 +134,8 @@
	{ 0x0, 0x0, NULL, 0x0 }
	};

	-static SYSCTL_NODE(_hw, OID_AUTO, mmc, CTLFLAG_RD, NULL, "mmc driver");
	+static SYSCTL_NODE(_hw, OID_AUTO, mmc, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "mmc driver");

	static int mmc_debug;
	SYSCTL_INT(_hw_mmc, OID_AUTO, debug, CTLFLAG_RWTUN, &mmc_debug, 0,
	Index: head/sys/dev/mmc/mmcsd.c
	===================================================================
	--- head/sys/dev/mmc/mmcsd.c
	+++ head/sys/dev/mmc/mmcsd.c
	@@ -156,7 +156,8 @@
	"NO MEMORY"
	};

	-static SYSCTL_NODE(_hw, OID_AUTO, mmcsd, CTLFLAG_RD, NULL, "mmcsd driver");
	+static SYSCTL_NODE(_hw, OID_AUTO, mmcsd, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "mmcsd driver");

	static int mmcsd_cache = 1;
	SYSCTL_INT(_hw_mmcsd, OID_AUTO, cache, CTLFLAG_RDTUN, &mmcsd_cache, 0,
	Index: head/sys/dev/mpr/mpr.c
	===================================================================
	--- head/sys/dev/mpr/mpr.c
	+++ head/sys/dev/mpr/mpr.c
	@@ -112,7 +112,8 @@
	static int mpr_dump_reqs(SYSCTL_HANDLER_ARGS);
	static void mpr_parse_debug(struct mpr_softc sc, char list);

	-SYSCTL_NODE(_hw, OID_AUTO, mpr, CTLFLAG_RD, 0, "MPR Driver Parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, mpr, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "MPR Driver Parameters");

	MALLOC_DEFINE(M_MPR, "mpr", "mpr driver memory");

	@@ -1799,7 +1800,7 @@
	sysctl_ctx_init(&sc->sysctl_ctx);
	sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_hw_mpr), OID_AUTO, tmpstr2,
	- CTLFLAG_RD, 0, tmpstr);
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, tmpstr);
	if (sc->sysctl_tree == NULL)
	return;
	sysctl_ctx = &sc->sysctl_ctx;
	@@ -1889,8 +1890,9 @@
	"spinup after SATA ID error");

	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
	- OID_AUTO, "dump_reqs", CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_SKIP, sc, 0,
	- mpr_dump_reqs, "I", "Dump Active Requests");
	+ OID_AUTO, "dump_reqs",
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_SKIP \| CTLFLAG_NEEDGIANT,
	+ sc, 0, mpr_dump_reqs, "I", "Dump Active Requests");

	SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
	OID_AUTO, "use_phy_num", CTLFLAG_RD, &sc->use_phynum, 0,
	Index: head/sys/dev/mps/mps.c
	===================================================================
	--- head/sys/dev/mps/mps.c
	+++ head/sys/dev/mps/mps.c
	@@ -110,7 +110,8 @@
	static int mps_dump_reqs(SYSCTL_HANDLER_ARGS);
	static void mps_parse_debug(struct mps_softc sc, char list);

	-SYSCTL_NODE(_hw, OID_AUTO, mps, CTLFLAG_RD, 0, "MPS Driver Parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, mps, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "MPS Driver Parameters");

	MALLOC_DEFINE(M_MPT2, "mps", "mpt2 driver memory");
	MALLOC_DECLARE(M_MPSUSER);
	@@ -1704,7 +1705,7 @@
	sysctl_ctx_init(&sc->sysctl_ctx);
	sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_hw_mps), OID_AUTO, tmpstr2,
	- CTLFLAG_RD, 0, tmpstr);
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, tmpstr);
	if (sc->sysctl_tree == NULL)
	return;
	sysctl_ctx = &sc->sysctl_ctx;
	@@ -1798,16 +1799,19 @@
	"spinup after SATA ID error");

	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
	- OID_AUTO, "mapping_table_dump", CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ OID_AUTO, "mapping_table_dump",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	mps_mapping_dump, "A", "Mapping Table Dump");

	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
	- OID_AUTO, "encl_table_dump", CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ OID_AUTO, "encl_table_dump",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	mps_mapping_encl_dump, "A", "Enclosure Table Dump");

	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
	- OID_AUTO, "dump_reqs", CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_SKIP, sc, 0,
	- mps_dump_reqs, "I", "Dump Active Requests");
	+ OID_AUTO, "dump_reqs",
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_SKIP \| CTLFLAG_NEEDGIANT,
	+ sc, 0, mps_dump_reqs, "I", "Dump Active Requests");

	SYSCTL_ADD_INT(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
	OID_AUTO, "use_phy_num", CTLFLAG_RD, &sc->use_phynum, 0,
	Index: head/sys/dev/mpt/mpt_raid.c
	===================================================================
	--- head/sys/dev/mpt/mpt_raid.c
	+++ head/sys/dev/mpt/mpt_raid.c
	@@ -1826,19 +1826,19 @@
	struct sysctl_oid *tree = device_get_sysctl_tree(mpt->dev);

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "vol_member_wce", CTLTYPE_STRING \| CTLFLAG_RW, mpt, 0,
	- mpt_raid_sysctl_vol_member_wce, "A",
	- "volume member WCE(On,Off,On-During-Rebuild,NC)");
	+ "vol_member_wce", CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ mpt, 0, mpt_raid_sysctl_vol_member_wce, "A",
	+ "volume member WCE(On,Off,On-During-Rebuild,NC)");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "vol_queue_depth", CTLTYPE_INT \| CTLFLAG_RW, mpt, 0,
	- mpt_raid_sysctl_vol_queue_depth, "I",
	- "default volume queue depth");
	+ "vol_queue_depth", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ mpt, 0, mpt_raid_sysctl_vol_queue_depth, "I",
	+ "default volume queue depth");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "vol_resync_rate", CTLTYPE_INT \| CTLFLAG_RW, mpt, 0,
	- mpt_raid_sysctl_vol_resync_rate, "I",
	- "volume resync priority (0 == NC, 1 - 255)");
	+ "vol_resync_rate", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ mpt, 0, mpt_raid_sysctl_vol_resync_rate, "I",
	+ "volume resync priority (0 == NC, 1 - 255)");
	SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	"nonoptimal_volumes", CTLFLAG_RD,
	&mpt->raid_nonopt_volumes, 0,
	Index: head/sys/dev/mrsas/mrsas.c
	===================================================================
	--- head/sys/dev/mrsas/mrsas.c
	+++ head/sys/dev/mrsas/mrsas.c
	@@ -178,7 +178,8 @@
	u_int32_t req_desc_hi);


	-SYSCTL_NODE(_hw, OID_AUTO, mrsas, CTLFLAG_RD, 0, "MRSAS Driver Parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, mrsas, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "MRSAS Driver Parameters");

	/*
	* PCI device struct and table
	@@ -429,7 +430,7 @@
	sysctl_ctx_init(&sc->sysctl_ctx);
	sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_hw_mrsas), OID_AUTO, tmpstr2,
	- CTLFLAG_RD, 0, tmpstr);
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, tmpstr);
	if (sc->sysctl_tree == NULL)
	return;
	sysctl_ctx = &sc->sysctl_ctx;
	Index: head/sys/dev/msk/if_msk.c
	===================================================================
	--- head/sys/dev/msk/if_msk.c
	+++ head/sys/dev/msk/if_msk.c
	@@ -1798,7 +1798,8 @@

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "process_limit", CTLTYPE_INT \| CTLFLAG_RW,
	+ OID_AUTO, "process_limit",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&sc->msk_process_limit, 0, sysctl_hw_msk_proc_limit, "I",
	"max number of Rx events to process");

	@@ -4480,11 +4481,13 @@
	#undef MSK_READ_MIB64

	#define MSK_SYSCTL_STAT32(sc, c, o, p, n, d) \
	- SYSCTL_ADD_PROC(c, p, OID_AUTO, o, CTLTYPE_UINT \| CTLFLAG_RD, \
	+ SYSCTL_ADD_PROC(c, p, OID_AUTO, o, \
	+ CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, \
	sc, offsetof(struct msk_hw_stats, n), msk_sysctl_stat32, \
	"IU", d)
	#define MSK_SYSCTL_STAT64(sc, c, o, p, n, d) \
	- SYSCTL_ADD_PROC(c, p, OID_AUTO, o, CTLTYPE_U64 \| CTLFLAG_RD, \
	+ SYSCTL_ADD_PROC(c, p, OID_AUTO, o, \
	+ CTLTYPE_U64 \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, \
	sc, offsetof(struct msk_hw_stats, n), msk_sysctl_stat64, \
	"QU", d)

	@@ -4498,11 +4501,11 @@
	ctx = device_get_sysctl_ctx(sc_if->msk_if_dev);
	child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc_if->msk_if_dev));

	- tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "MSK Statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "MSK Statistics");
	schild = SYSCTL_CHILDREN(tree);
	- tree = SYSCTL_ADD_NODE(ctx, schild, OID_AUTO, "rx", CTLFLAG_RD,
	- NULL, "MSK RX Statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, schild, OID_AUTO, "rx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "MSK RX Statistics");
	child = SYSCTL_CHILDREN(tree);
	MSK_SYSCTL_STAT32(sc_if, ctx, "ucast_frames",
	child, rx_ucast_frames, "Good unicast frames");
	@@ -4539,8 +4542,8 @@
	MSK_SYSCTL_STAT32(sc_if, ctx, "overflows",
	child, rx_fifo_oflows, "FIFO overflows");

	- tree = SYSCTL_ADD_NODE(ctx, schild, OID_AUTO, "tx", CTLFLAG_RD,
	- NULL, "MSK TX Statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, schild, OID_AUTO, "tx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "MSK TX Statistics");
	child = SYSCTL_CHILDREN(tree);
	MSK_SYSCTL_STAT32(sc_if, ctx, "ucast_frames",
	child, tx_ucast_frames, "Unicast frames");
	Index: head/sys/dev/mwl/if_mwl.c
	===================================================================
	--- head/sys/dev/mwl/if_mwl.c
	+++ head/sys/dev/mwl/if_mwl.c
	@@ -188,7 +188,8 @@
	static void mwl_sysctlattach(struct mwl_softc *);
	static void mwl_announce(struct mwl_softc *);

	-SYSCTL_NODE(_hw, OID_AUTO, mwl, CTLFLAG_RD, 0, "Marvell driver parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, mwl, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Marvell driver parameters");

	static int mwl_rxdesc = MWL_RXDESC; /* # rx desc's to allocate */
	SYSCTL_INT(_hw_mwl, OID_AUTO, rxdesc, CTLFLAG_RW, &mwl_rxdesc,
	@@ -4787,9 +4788,9 @@
	struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);

	sc->sc_debug = mwl_debug;
	- SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "debug", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	- mwl_sysctl_debug, "I", "control debugging printfs");
	+ SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "debug",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ mwl_sysctl_debug, "I", "control debugging printfs");
	#endif
	}

	Index: head/sys/dev/mwl/mwlhal.c
	===================================================================
	--- head/sys/dev/mwl/mwlhal.c
	+++ head/sys/dev/mwl/mwlhal.c
	@@ -192,7 +192,7 @@
	#endif /* MWLHAL_DEBUG */

	SYSCTL_DECL(_hw_mwl);
	-static SYSCTL_NODE(_hw_mwl, OID_AUTO, hal, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_hw_mwl, OID_AUTO, hal, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Marvell HAL parameters");

	static __inline void
	Index: head/sys/dev/mxge/if_mxge.c
	===================================================================
	--- head/sys/dev/mxge/if_mxge.c
	+++ head/sys/dev/mxge/if_mxge.c
	@@ -1507,22 +1507,19 @@

	/* performance related tunables */
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "intr_coal_delay",
	- CTLTYPE_INT\|CTLFLAG_RW, sc,
	- 0, mxge_change_intr_coal,
	- "I", "interrupt coalescing delay in usecs");
	+ "intr_coal_delay", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ sc, 0, mxge_change_intr_coal, "I",
	+ "interrupt coalescing delay in usecs");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "throttle",
	- CTLTYPE_INT\|CTLFLAG_RW, sc,
	- 0, mxge_change_throttle,
	- "I", "transmit throttling");
	+ "throttle", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, sc, 0,
	+ mxge_change_throttle, "I", "transmit throttling");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "flow_control_enabled",
	- CTLTYPE_INT\|CTLFLAG_RW, sc,
	- 0, mxge_change_flow_control,
	- "I", "interrupt coalescing delay in usecs");
	+ "flow_control_enabled",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, sc, 0,
	+ mxge_change_flow_control, "I",
	+ "interrupt coalescing delay in usecs");

	SYSCTL_ADD_INT(ctx, children, OID_AUTO,
	"deassert_wait",
	@@ -1532,77 +1529,61 @@
	/* stats block from firmware is in network byte order.
	Need to swap it */
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "link_up",
	- CTLTYPE_INT\|CTLFLAG_RD, &fw->link_up,
	- 0, mxge_handle_be32,
	- "I", "link up");
	+ "link_up", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ &fw->link_up, 0, mxge_handle_be32, "I", "link up");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "rdma_tags_available",
	- CTLTYPE_INT\|CTLFLAG_RD, &fw->rdma_tags_available,
	- 0, mxge_handle_be32,
	- "I", "rdma_tags_available");
	+ "rdma_tags_available", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ &fw->rdma_tags_available, 0, mxge_handle_be32, "I",
	+ "rdma_tags_available");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dropped_bad_crc32",
	- CTLTYPE_INT\|CTLFLAG_RD,
	- &fw->dropped_bad_crc32,
	- 0, mxge_handle_be32,
	- "I", "dropped_bad_crc32");
	+ "dropped_bad_crc32", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ &fw->dropped_bad_crc32, 0, mxge_handle_be32, "I",
	+ "dropped_bad_crc32");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dropped_bad_phy",
	- CTLTYPE_INT\|CTLFLAG_RD,
	- &fw->dropped_bad_phy,
	- 0, mxge_handle_be32,
	- "I", "dropped_bad_phy");
	+ "dropped_bad_phy", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ &fw->dropped_bad_phy, 0, mxge_handle_be32, "I", "dropped_bad_phy");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dropped_link_error_or_filtered",
	- CTLTYPE_INT\|CTLFLAG_RD,
	- &fw->dropped_link_error_or_filtered,
	- 0, mxge_handle_be32,
	- "I", "dropped_link_error_or_filtered");
	+ "dropped_link_error_or_filtered",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ &fw->dropped_link_error_or_filtered, 0, mxge_handle_be32, "I",
	+ "dropped_link_error_or_filtered");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dropped_link_overflow",
	- CTLTYPE_INT\|CTLFLAG_RD, &fw->dropped_link_overflow,
	- 0, mxge_handle_be32,
	- "I", "dropped_link_overflow");
	+ "dropped_link_overflow",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ &fw->dropped_link_overflow, 0, mxge_handle_be32, "I",
	+ "dropped_link_overflow");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dropped_multicast_filtered",
	- CTLTYPE_INT\|CTLFLAG_RD,
	- &fw->dropped_multicast_filtered,
	- 0, mxge_handle_be32,
	- "I", "dropped_multicast_filtered");
	+ "dropped_multicast_filtered",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ &fw->dropped_multicast_filtered, 0, mxge_handle_be32, "I",
	+ "dropped_multicast_filtered");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dropped_no_big_buffer",
	- CTLTYPE_INT\|CTLFLAG_RD, &fw->dropped_no_big_buffer,
	- 0, mxge_handle_be32,
	- "I", "dropped_no_big_buffer");
	+ "dropped_no_big_buffer",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ &fw->dropped_no_big_buffer, 0, mxge_handle_be32, "I",
	+ "dropped_no_big_buffer");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dropped_no_small_buffer",
	- CTLTYPE_INT\|CTLFLAG_RD,
	- &fw->dropped_no_small_buffer,
	- 0, mxge_handle_be32,
	- "I", "dropped_no_small_buffer");
	+ "dropped_no_small_buffer",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ &fw->dropped_no_small_buffer, 0, mxge_handle_be32, "I",
	+ "dropped_no_small_buffer");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dropped_overrun",
	- CTLTYPE_INT\|CTLFLAG_RD, &fw->dropped_overrun,
	- 0, mxge_handle_be32,
	- "I", "dropped_overrun");
	+ "dropped_overrun",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ &fw->dropped_overrun, 0, mxge_handle_be32, "I",
	+ "dropped_overrun");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dropped_pause",
	- CTLTYPE_INT\|CTLFLAG_RD,
	- &fw->dropped_pause,
	- 0, mxge_handle_be32,
	- "I", "dropped_pause");
	+ "dropped_pause", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ &fw->dropped_pause, 0, mxge_handle_be32, "I", "dropped_pause");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dropped_runt",
	- CTLTYPE_INT\|CTLFLAG_RD, &fw->dropped_runt,
	- 0, mxge_handle_be32,
	- "I", "dropped_runt");
	+ "dropped_runt", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ &fw->dropped_runt, 0, mxge_handle_be32, "I", "dropped_runt");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
	- "dropped_unicast_filtered",
	- CTLTYPE_INT\|CTLFLAG_RD, &fw->dropped_unicast_filtered,
	- 0, mxge_handle_be32,
	- "I", "dropped_unicast_filtered");
	+ "dropped_unicast_filtered",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ &fw->dropped_unicast_filtered, 0, mxge_handle_be32, "I",
	+ "dropped_unicast_filtered");

	/* verbose printing? */
	SYSCTL_ADD_INT(ctx, children, OID_AUTO,
	@@ -1614,7 +1595,7 @@
	sysctl_ctx_init(&sc->slice_sysctl_ctx);
	sc->slice_sysctl_tree =
	SYSCTL_ADD_NODE(&sc->slice_sysctl_ctx, children, OID_AUTO,
	- "slice", CTLFLAG_RD, 0, "");
	+ "slice", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");

	for (slice = 0; slice < sc->num_slices; slice++) {
	ss = &sc->ss[slice];
	@@ -1624,7 +1605,7 @@
	sprintf(slice_num, "%d", slice);
	ss->sysctl_tree =
	SYSCTL_ADD_NODE(ctx, children, OID_AUTO, slice_num,
	- CTLFLAG_RD, 0, "");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");
	children = SYSCTL_CHILDREN(ss->sysctl_tree);
	SYSCTL_ADD_INT(ctx, children, OID_AUTO,
	"rx_small_cnt",
	Index: head/sys/dev/neta/if_mvneta.c
	===================================================================
	--- head/sys/dev/neta/if_mvneta.c
	+++ head/sys/dev/neta/if_mvneta.c
	@@ -3479,10 +3479,10 @@
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev));

	tree = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "rx",
	- CTLFLAG_RD, 0, "NETA RX");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "NETA RX");
	rxchildren = SYSCTL_CHILDREN(tree);
	tree = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "mib",
	- CTLFLAG_RD, 0, "NETA MIB");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "NETA MIB");
	mchildren = SYSCTL_CHILDREN(tree);


	@@ -3502,8 +3502,9 @@
	mib_arg->index = i;
	SYSCTL_ADD_PROC(ctx, mchildren, OID_AUTO,
	mvneta_mib_list[i].sysctl_name,
	- CTLTYPE_U64\|CTLFLAG_RD, (void *)mib_arg, 0,
	- sysctl_read_mib, "I", mvneta_mib_list[i].desc);
	+ CTLTYPE_U64 \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ (void *)mib_arg, 0, sysctl_read_mib, "I",
	+ mvneta_mib_list[i].desc);
	}
	SYSCTL_ADD_UQUAD(ctx, mchildren, OID_AUTO, "rx_discard",
	CTLFLAG_RD, &sc->counter_pdfc, "Port Rx Discard Frame Counter");
	@@ -3513,8 +3514,8 @@
	CTLFLAG_RD, &sc->counter_watchdog, 0, "TX Watchdog Counter");

	SYSCTL_ADD_PROC(ctx, mchildren, OID_AUTO, "reset",
	- CTLTYPE_INT\|CTLFLAG_RW, (void *)sc, 0,
	- sysctl_clear_mib, "I", "Reset MIB counters");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ (void *)sc, 0, sysctl_clear_mib, "I", "Reset MIB counters");

	for (q = 0; q < MVNETA_RX_QNUM_MAX; q++) {
	rxarg = &sc->sysctl_rx_queue[q];
	@@ -3525,13 +3526,13 @@

	/* hw.mvneta.mvneta[unit].rx.[queue] */
	tree = SYSCTL_ADD_NODE(ctx, rxchildren, OID_AUTO,
	- sysctl_queue_names[q], CTLFLAG_RD, 0,
	+ sysctl_queue_names[q], CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	sysctl_queue_descrs[q]);
	qchildren = SYSCTL_CHILDREN(tree);

	/* hw.mvneta.mvneta[unit].rx.[queue].threshold_timer_us */
	SYSCTL_ADD_PROC(ctx, qchildren, OID_AUTO, "threshold_timer_us",
	- CTLTYPE_UINT \| CTLFLAG_RW, rxarg, 0,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, rxarg, 0,
	sysctl_set_queue_rxthtime, "I",
	"interrupt coalescing threshold timer [us]");
	}
	Index: head/sys/dev/netmap/netmap.c
	===================================================================
	--- head/sys/dev/netmap/netmap.c
	+++ head/sys/dev/netmap/netmap.c
	@@ -540,7 +540,8 @@
	SYSBEGIN(main_init);

	SYSCTL_DECL(_dev_netmap);
	-SYSCTL_NODE(_dev, OID_AUTO, netmap, CTLFLAG_RW, 0, "Netmap args");
	+SYSCTL_NODE(_dev, OID_AUTO, netmap, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Netmap args");
	SYSCTL_INT(_dev_netmap, OID_AUTO, verbose,
	CTLFLAG_RW, &netmap_verbose, 0, "Verbose mode");
	#ifdef CONFIG_NETMAP_DEBUG
	Index: head/sys/dev/nfe/if_nfe.c
	===================================================================
	--- head/sys/dev/nfe/if_nfe.c
	+++ head/sys/dev/nfe/if_nfe.c
	@@ -3121,8 +3121,8 @@
	stats = &sc->nfe_stats;
	ctx = device_get_sysctl_ctx(sc->nfe_dev);
	child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->nfe_dev));
	- SYSCTL_ADD_PROC(ctx, child,
	- OID_AUTO, "process_limit", CTLTYPE_INT \| CTLFLAG_RW,
	+ SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "process_limit",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&sc->nfe_process_limit, 0, sysctl_hw_nfe_proc_limit, "I",
	"max number of Rx events to process");

	@@ -3143,13 +3143,13 @@
	if ((sc->nfe_flags & (NFE_MIB_V1 \| NFE_MIB_V2 \| NFE_MIB_V3)) == 0)
	return;

	- tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "NFE statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "NFE statistics");
	parent = SYSCTL_CHILDREN(tree);

	/* Rx statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx", CTLFLAG_RD,
	- NULL, "Rx MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Rx MAC statistics");
	child = SYSCTL_CHILDREN(tree);

	NFE_SYSCTL_STAT_ADD32(ctx, child, "frame_errors",
	@@ -3186,8 +3186,8 @@
	}

	/* Tx statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx", CTLFLAG_RD,
	- NULL, "Tx MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Tx MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	NFE_SYSCTL_STAT_ADD64(ctx, child, "octets",
	&stats->tx_octets, "Octets");
	Index: head/sys/dev/nge/if_nge.c
	===================================================================
	--- head/sys/dev/nge/if_nge.c
	+++ head/sys/dev/nge/if_nge.c
	@@ -2652,8 +2652,8 @@
	ctx = device_get_sysctl_ctx(sc->nge_dev);
	child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->nge_dev));
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "int_holdoff",
	- CTLTYPE_INT \| CTLFLAG_RW, &sc->nge_int_holdoff, 0,
	- sysctl_hw_nge_int_holdoff, "I", "NGE interrupt moderation");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sc->nge_int_holdoff,
	+ 0, sysctl_hw_nge_int_holdoff, "I", "NGE interrupt moderation");
	/* Pull in device tunables. */
	sc->nge_int_holdoff = NGE_INT_HOLDOFF_DEFAULT;
	error = resource_int_value(device_get_name(sc->nge_dev),
	@@ -2671,13 +2671,13 @@
	}

	stats = &sc->nge_stats;
	- tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "NGE statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "NGE statistics");
	parent = SYSCTL_CHILDREN(tree);

	/* Rx statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx", CTLFLAG_RD,
	- NULL, "Rx MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Rx MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	NGE_SYSCTL_STAT_ADD32(ctx, child, "pkts_errs",
	&stats->rx_pkts_errs,
	@@ -2701,8 +2701,8 @@
	&stats->rx_pause, "Pause frames");

	/* Tx statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx", CTLFLAG_RD,
	- NULL, "Tx MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Tx MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	NGE_SYSCTL_STAT_ADD32(ctx, child, "pause",
	&stats->tx_pause, "Pause frames");
	Index: head/sys/dev/ntb/if_ntb/if_ntb.c
	===================================================================
	--- head/sys/dev/ntb/if_ntb/if_ntb.c
	+++ head/sys/dev/ntb/if_ntb/if_ntb.c
	@@ -75,7 +75,8 @@
	CSUM_IP_CHECKED \| CSUM_IP_VALID \| \
	CSUM_SCTP_VALID)

	-static SYSCTL_NODE(_hw, OID_AUTO, if_ntb, CTLFLAG_RW, 0, "if_ntb");
	+static SYSCTL_NODE(_hw, OID_AUTO, if_ntb, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "if_ntb");

	static unsigned g_if_ntb_num_queues = UINT_MAX;
	SYSCTL_UINT(_hw_if_ntb, OID_AUTO, num_queues, CTLFLAG_RWTUN,
	Index: head/sys/dev/ntb/ntb.c
	===================================================================
	--- head/sys/dev/ntb/ntb.c
	+++ head/sys/dev/ntb/ntb.c
	@@ -39,7 +39,8 @@
	#include "ntb.h"

	devclass_t ntb_hw_devclass;
	-SYSCTL_NODE(_hw, OID_AUTO, ntb, CTLFLAG_RW, 0, "NTB sysctls");
	+SYSCTL_NODE(_hw, OID_AUTO, ntb, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "NTB sysctls");

	struct ntb_child {
	device_t dev;
	Index: head/sys/dev/ntb/ntb_hw/ntb_hw_intel.c
	===================================================================
	--- head/sys/dev/ntb/ntb_hw/ntb_hw_intel.c
	+++ head/sys/dev/ntb/ntb_hw/ntb_hw_intel.c
	@@ -583,7 +583,7 @@
	.bar5_addr32 = XEON_B2B_BAR5_ADDR32,
	};

	-SYSCTL_NODE(_hw_ntb, OID_AUTO, xeon_b2b, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_hw_ntb, OID_AUTO, xeon_b2b, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"B2B MW segment overrides -- MUST be the same on both sides");

	SYSCTL_UQUAD(_hw_ntb_xeon_b2b, OID_AUTO, usd_bar2_addr64, CTLFLAG_RDTUN,
	@@ -2225,7 +2225,7 @@
	return (NTB_LNK_STA_WIDTH(ntb->lnk_sta));
	}

	-SYSCTL_NODE(_hw_ntb, OID_AUTO, debug_info, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_hw_ntb, OID_AUTO, debug_info, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Driver state, statistics, and HW registers");

	#define NTB_REGSZ_MASK (3ul << 30)
	@@ -2249,18 +2249,21 @@
	globals = SYSCTL_CHILDREN(device_get_sysctl_tree(ntb->device));

	SYSCTL_ADD_PROC(ctx, globals, OID_AUTO, "link_status",
	- CTLFLAG_RD \| CTLTYPE_STRING, ntb, 0,
	+ CTLFLAG_RD \| CTLTYPE_STRING \| CTLFLAG_NEEDGIANT, ntb, 0,
	sysctl_handle_link_status_human, "A",
	"Link status (human readable)");
	SYSCTL_ADD_PROC(ctx, globals, OID_AUTO, "active",
	- CTLFLAG_RD \| CTLTYPE_UINT, ntb, 0, sysctl_handle_link_status,
	- "IU", "Link status (1=active, 0=inactive)");
	+ CTLFLAG_RD \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, ntb, 0,
	+ sysctl_handle_link_status, "IU",
	+ "Link status (1=active, 0=inactive)");
	SYSCTL_ADD_PROC(ctx, globals, OID_AUTO, "admin_up",
	- CTLFLAG_RW \| CTLTYPE_UINT, ntb, 0, sysctl_handle_link_admin,
	- "IU", "Set/get interface status (1=UP, 0=DOWN)");
	+ CTLFLAG_RW \| CTLTYPE_UINT \| CTLFLAG_NEEDGIANT, ntb, 0,
	+ sysctl_handle_link_admin, "IU",
	+ "Set/get interface status (1=UP, 0=DOWN)");

	tree = SYSCTL_ADD_NODE(ctx, globals, OID_AUTO, "debug_info",
	- CTLFLAG_RD, NULL, "Driver state, statistics, and HW registers");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "Driver state, statistics, and HW registers");
	tree_par = SYSCTL_CHILDREN(tree);

	SYSCTL_ADD_UINT(ctx, tree_par, OID_AUTO, "conn_type", CTLFLAG_RD,
	@@ -2280,8 +2283,8 @@
	}

	SYSCTL_ADD_PROC(ctx, tree_par, OID_AUTO, "features",
	- CTLFLAG_RD \| CTLTYPE_STRING, ntb, 0, sysctl_handle_features, "A",
	- "Features/errata of this NTB device");
	+ CTLFLAG_RD \| CTLTYPE_STRING \| CTLFLAG_NEEDGIANT, ntb, 0,
	+ sysctl_handle_features, "A", "Features/errata of this NTB device");

	SYSCTL_ADD_UINT(ctx, tree_par, OID_AUTO, "ntb_ctl", CTLFLAG_RD,
	__DEVOLATILE(uint32_t *, &ntb->ntb_ctl), 0,
	@@ -2309,67 +2312,68 @@
	&ntb->db_mask, "Doorbell mask (cached)");

	tmptree = SYSCTL_ADD_NODE(ctx, tree_par, OID_AUTO, "registers",
	- CTLFLAG_RD, NULL, "Raw HW registers (big-endian)");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "Raw HW registers (big-endian)");
	regpar = SYSCTL_CHILDREN(tmptree);

	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "ntbcntl",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb, NTB_REG_32 \|
	- ntb->reg->ntb_ctl, sysctl_handle_register, "IU",
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	+ NTB_REG_32 \| ntb->reg->ntb_ctl, sysctl_handle_register, "IU",
	"NTB Control register");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "lnkcap",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb, NTB_REG_32 \|
	- 0x19c, sysctl_handle_register, "IU",
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	+ NTB_REG_32 \| 0x19c, sysctl_handle_register, "IU",
	"NTB Link Capabilities");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "lnkcon",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb, NTB_REG_32 \|
	- 0x1a0, sysctl_handle_register, "IU",
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	+ NTB_REG_32 \| 0x1a0, sysctl_handle_register, "IU",
	"NTB Link Control register");

	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "db_mask",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_64 \| NTB_DB_READ \| ntb->self_reg->db_mask,
	sysctl_handle_register, "QU", "Doorbell mask register");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "db_bell",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_64 \| NTB_DB_READ \| ntb->self_reg->db_bell,
	sysctl_handle_register, "QU", "Doorbell register");

	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "incoming_xlat23",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_64 \| ntb->xlat_reg->bar2_xlat,
	sysctl_handle_register, "QU", "Incoming XLAT23 register");
	if (HAS_FEATURE(ntb, NTB_SPLIT_BAR)) {
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "incoming_xlat4",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_32 \| ntb->xlat_reg->bar4_xlat,
	sysctl_handle_register, "IU", "Incoming XLAT4 register");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "incoming_xlat5",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_32 \| ntb->xlat_reg->bar5_xlat,
	sysctl_handle_register, "IU", "Incoming XLAT5 register");
	} else {
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "incoming_xlat45",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_64 \| ntb->xlat_reg->bar4_xlat,
	sysctl_handle_register, "QU", "Incoming XLAT45 register");
	}

	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "incoming_lmt23",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_64 \| ntb->xlat_reg->bar2_limit,
	sysctl_handle_register, "QU", "Incoming LMT23 register");
	if (HAS_FEATURE(ntb, NTB_SPLIT_BAR)) {
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "incoming_lmt4",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_32 \| ntb->xlat_reg->bar4_limit,
	sysctl_handle_register, "IU", "Incoming LMT4 register");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "incoming_lmt5",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_32 \| ntb->xlat_reg->bar5_limit,
	sysctl_handle_register, "IU", "Incoming LMT5 register");
	} else {
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "incoming_lmt45",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_64 \| ntb->xlat_reg->bar4_limit,
	sysctl_handle_register, "QU", "Incoming LMT45 register");
	}
	@@ -2378,67 +2382,67 @@
	return;

	tmptree = SYSCTL_ADD_NODE(ctx, regpar, OID_AUTO, "xeon_stats",
	- CTLFLAG_RD, NULL, "Xeon HW statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Xeon HW statistics");
	statpar = SYSCTL_CHILDREN(tmptree);
	SYSCTL_ADD_PROC(ctx, statpar, OID_AUTO, "upstream_mem_miss",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_16 \| XEON_USMEMMISS_OFFSET,
	sysctl_handle_register, "SU", "Upstream Memory Miss");

	tmptree = SYSCTL_ADD_NODE(ctx, regpar, OID_AUTO, "xeon_hw_err",
	- CTLFLAG_RD, NULL, "Xeon HW errors");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Xeon HW errors");
	errpar = SYSCTL_CHILDREN(tmptree);

	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "ppd",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_8 \| NTB_PCI_REG \| NTB_PPD_OFFSET,
	sysctl_handle_register, "CU", "PPD");

	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "pbar23_sz",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_8 \| NTB_PCI_REG \| XEON_PBAR23SZ_OFFSET,
	sysctl_handle_register, "CU", "PBAR23 SZ (log2)");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "pbar4_sz",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_8 \| NTB_PCI_REG \| XEON_PBAR4SZ_OFFSET,
	sysctl_handle_register, "CU", "PBAR4 SZ (log2)");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "pbar5_sz",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_8 \| NTB_PCI_REG \| XEON_PBAR5SZ_OFFSET,
	sysctl_handle_register, "CU", "PBAR5 SZ (log2)");

	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "sbar23_sz",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_8 \| NTB_PCI_REG \| XEON_SBAR23SZ_OFFSET,
	sysctl_handle_register, "CU", "SBAR23 SZ (log2)");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "sbar4_sz",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_8 \| NTB_PCI_REG \| XEON_SBAR4SZ_OFFSET,
	sysctl_handle_register, "CU", "SBAR4 SZ (log2)");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "sbar5_sz",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_8 \| NTB_PCI_REG \| XEON_SBAR5SZ_OFFSET,
	sysctl_handle_register, "CU", "SBAR5 SZ (log2)");

	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "devsts",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_16 \| NTB_PCI_REG \| XEON_DEVSTS_OFFSET,
	sysctl_handle_register, "SU", "DEVSTS");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "lnksts",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_16 \| NTB_PCI_REG \| XEON_LINK_STATUS_OFFSET,
	sysctl_handle_register, "SU", "LNKSTS");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "slnksts",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_16 \| NTB_PCI_REG \| XEON_SLINK_STATUS_OFFSET,
	sysctl_handle_register, "SU", "SLNKSTS");

	SYSCTL_ADD_PROC(ctx, errpar, OID_AUTO, "uncerrsts",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_32 \| NTB_PCI_REG \| XEON_UNCERRSTS_OFFSET,
	sysctl_handle_register, "IU", "UNCERRSTS");
	SYSCTL_ADD_PROC(ctx, errpar, OID_AUTO, "corerrsts",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_32 \| NTB_PCI_REG \| XEON_CORERRSTS_OFFSET,
	sysctl_handle_register, "IU", "CORERRSTS");

	@@ -2446,75 +2450,75 @@
	return;

	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "outgoing_xlat01l",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_32 \| XEON_B2B_XLAT_OFFSETL,
	sysctl_handle_register, "IU", "Outgoing XLAT0L register");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "outgoing_xlat01u",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_32 \| XEON_B2B_XLAT_OFFSETU,
	sysctl_handle_register, "IU", "Outgoing XLAT0U register");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "outgoing_xlat23",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_64 \| ntb->bar_info[NTB_B2B_BAR_1].pbarxlat_off,
	sysctl_handle_register, "QU", "Outgoing XLAT23 register");
	if (HAS_FEATURE(ntb, NTB_SPLIT_BAR)) {
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "outgoing_xlat4",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_32 \| ntb->bar_info[NTB_B2B_BAR_2].pbarxlat_off,
	sysctl_handle_register, "IU", "Outgoing XLAT4 register");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "outgoing_xlat5",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_32 \| ntb->bar_info[NTB_B2B_BAR_3].pbarxlat_off,
	sysctl_handle_register, "IU", "Outgoing XLAT5 register");
	} else {
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "outgoing_xlat45",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_64 \| ntb->bar_info[NTB_B2B_BAR_2].pbarxlat_off,
	sysctl_handle_register, "QU", "Outgoing XLAT45 register");
	}

	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "outgoing_lmt23",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_64 \| XEON_PBAR2LMT_OFFSET,
	sysctl_handle_register, "QU", "Outgoing LMT23 register");
	if (HAS_FEATURE(ntb, NTB_SPLIT_BAR)) {
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "outgoing_lmt4",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_32 \| XEON_PBAR4LMT_OFFSET,
	sysctl_handle_register, "IU", "Outgoing LMT4 register");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "outgoing_lmt5",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_32 \| XEON_PBAR5LMT_OFFSET,
	sysctl_handle_register, "IU", "Outgoing LMT5 register");
	} else {
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "outgoing_lmt45",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_64 \| XEON_PBAR4LMT_OFFSET,
	sysctl_handle_register, "QU", "Outgoing LMT45 register");
	}

	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "sbar01_base",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_64 \| ntb->xlat_reg->bar0_base,
	sysctl_handle_register, "QU", "Secondary BAR01 base register");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "sbar23_base",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_64 \| ntb->xlat_reg->bar2_base,
	sysctl_handle_register, "QU", "Secondary BAR23 base register");
	if (HAS_FEATURE(ntb, NTB_SPLIT_BAR)) {
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "sbar4_base",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_32 \| ntb->xlat_reg->bar4_base,
	sysctl_handle_register, "IU",
	"Secondary BAR4 base register");
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "sbar5_base",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_32 \| ntb->xlat_reg->bar5_base,
	sysctl_handle_register, "IU",
	"Secondary BAR5 base register");
	} else {
	SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "sbar45_base",
	- CTLFLAG_RD \| CTLTYPE_OPAQUE, ntb,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_NEEDGIANT, ntb,
	NTB_REG_64 \| ntb->xlat_reg->bar4_base,
	sysctl_handle_register, "QU",
	"Secondary BAR45 base register");
	Index: head/sys/dev/ntb/ntb_transport.c
	===================================================================
	--- head/sys/dev/ntb/ntb_transport.c
	+++ head/sys/dev/ntb/ntb_transport.c
	@@ -67,7 +67,9 @@

	#define NTB_TRANSPORT_VERSION 4

	-static SYSCTL_NODE(_hw, OID_AUTO, ntb_transport, CTLFLAG_RW, 0, "ntb_transport");
	+static SYSCTL_NODE(_hw, OID_AUTO, ntb_transport,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "ntb_transport");

	static unsigned g_ntb_transport_debug_level;
	SYSCTL_UINT(_hw_ntb_transport, OID_AUTO, debug_level, CTLFLAG_RWTUN,
	Index: head/sys/dev/ntb/test/ntb_tool.c
	===================================================================
	--- head/sys/dev/ntb/test/ntb_tool.c
	+++ head/sys/dev/ntb/test/ntb_tool.c
	@@ -1379,8 +1379,8 @@
	for (pidx = 0; pidx < tc->peer_cnt; pidx++) {
	snprintf(buf, sizeof(buf), "peer%d", pidx);

	- peer = SYSCTL_ADD_NODE(clist, top, OID_AUTO, buf, CTLFLAG_RW, 0,
	- buf);
	+ peer = SYSCTL_ADD_NODE(clist, top, OID_AUTO, buf,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, buf);
	peer_top = SYSCTL_CHILDREN(peer);

	SYSCTL_ADD_PROC(clist, peer_top, OID_AUTO, "port",
	Index: head/sys/dev/nvd/nvd.c
	===================================================================
	--- head/sys/dev/nvd/nvd.c
	+++ head/sys/dev/nvd/nvd.c
	@@ -101,7 +101,8 @@
	static TAILQ_HEAD(, nvd_controller) ctrlr_head;
	static TAILQ_HEAD(disk_list, nvd_disk) disk_head;

	-static SYSCTL_NODE(_hw, OID_AUTO, nvd, CTLFLAG_RD, 0, "nvd driver parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, nvd, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "nvd driver parameters");
	/*
	* The NVMe specification does not define a maximum or optimal delete size, so
	* technically max delete size is min(full size of the namespace, 2^32 - 1
	Index: head/sys/dev/nvme/nvme_sysctl.c
	===================================================================
	--- head/sys/dev/nvme/nvme_sysctl.c
	+++ head/sys/dev/nvme/nvme_sysctl.c
	@@ -44,7 +44,8 @@
	int nvme_use_nvd = NVME_USE_NVD;
	bool nvme_verbose_cmd_dump = false;

	-SYSCTL_NODE(_hw, OID_AUTO, nvme, CTLFLAG_RD, 0, "NVMe sysctl tunables");
	+SYSCTL_NODE(_hw, OID_AUTO, nvme, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "NVMe sysctl tunables");
	SYSCTL_INT(_hw_nvme, OID_AUTO, use_nvd, CTLFLAG_RDTUN,
	&nvme_use_nvd, 1, "1 = Create NVD devices, 0 = Create NDA devices");
	SYSCTL_BOOL(_hw_nvme, OID_AUTO, verbose_cmd_dump, CTLFLAG_RWTUN,
	@@ -288,8 +289,8 @@
	"Number of commands ending in failure after all retries");

	SYSCTL_ADD_PROC(ctrlr_ctx, que_list, OID_AUTO,
	- "dump_debug", CTLTYPE_UINT \| CTLFLAG_RW, qpair, 0,
	- nvme_sysctl_dump_debug, "IU", "Dump debug data");
	+ "dump_debug", CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ qpair, 0, nvme_sysctl_dump_debug, "IU", "Dump debug data");
	}

	void
	@@ -311,55 +312,57 @@
	"Number of I/O queue pairs");

	SYSCTL_ADD_PROC(ctrlr_ctx, ctrlr_list, OID_AUTO,
	- "int_coal_time", CTLTYPE_UINT \| CTLFLAG_RW, ctrlr, 0,
	- nvme_sysctl_int_coal_time, "IU",
	+ "int_coal_time", CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ ctrlr, 0, nvme_sysctl_int_coal_time, "IU",
	"Interrupt coalescing timeout (in microseconds)");

	SYSCTL_ADD_PROC(ctrlr_ctx, ctrlr_list, OID_AUTO,
	- "int_coal_threshold", CTLTYPE_UINT \| CTLFLAG_RW, ctrlr, 0,
	+ "int_coal_threshold",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, ctrlr, 0,
	nvme_sysctl_int_coal_threshold, "IU",
	"Interrupt coalescing threshold");

	SYSCTL_ADD_PROC(ctrlr_ctx, ctrlr_list, OID_AUTO,
	- "timeout_period", CTLTYPE_UINT \| CTLFLAG_RW, ctrlr, 0,
	- nvme_sysctl_timeout_period, "IU",
	+ "timeout_period", CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ ctrlr, 0, nvme_sysctl_timeout_period, "IU",
	"Timeout period (in seconds)");

	SYSCTL_ADD_PROC(ctrlr_ctx, ctrlr_list, OID_AUTO,
	- "num_cmds", CTLTYPE_S64 \| CTLFLAG_RD,
	+ "num_cmds", CTLTYPE_S64 \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	ctrlr, 0, nvme_sysctl_num_cmds, "IU",
	"Number of commands submitted");

	SYSCTL_ADD_PROC(ctrlr_ctx, ctrlr_list, OID_AUTO,
	- "num_intr_handler_calls", CTLTYPE_S64 \| CTLFLAG_RD,
	- ctrlr, 0, nvme_sysctl_num_intr_handler_calls, "IU",
	+ "num_intr_handler_calls",
	+ CTLTYPE_S64 \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, ctrlr, 0,
	+ nvme_sysctl_num_intr_handler_calls, "IU",
	"Number of times interrupt handler was invoked (will "
	"typically be less than number of actual interrupts "
	"generated due to coalescing)");

	SYSCTL_ADD_PROC(ctrlr_ctx, ctrlr_list, OID_AUTO,
	- "num_retries", CTLTYPE_S64 \| CTLFLAG_RD,
	+ "num_retries", CTLTYPE_S64 \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	ctrlr, 0, nvme_sysctl_num_retries, "IU",
	"Number of commands retried");

	SYSCTL_ADD_PROC(ctrlr_ctx, ctrlr_list, OID_AUTO,
	- "num_failures", CTLTYPE_S64 \| CTLFLAG_RD,
	+ "num_failures", CTLTYPE_S64 \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	ctrlr, 0, nvme_sysctl_num_failures, "IU",
	"Number of commands ending in failure after all retries");

	SYSCTL_ADD_PROC(ctrlr_ctx, ctrlr_list, OID_AUTO,
	- "reset_stats", CTLTYPE_UINT \| CTLFLAG_RW, ctrlr, 0,
	- nvme_sysctl_reset_stats, "IU", "Reset statistics to zero");
	+ "reset_stats", CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, ctrlr,
	+ 0, nvme_sysctl_reset_stats, "IU", "Reset statistics to zero");

	que_tree = SYSCTL_ADD_NODE(ctrlr_ctx, ctrlr_list, OID_AUTO, "adminq",
	- CTLFLAG_RD, NULL, "Admin Queue");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Admin Queue");

	nvme_sysctl_initialize_queue(&ctrlr->adminq, ctrlr_ctx, que_tree);

	for (i = 0; i < ctrlr->num_io_queues; i++) {
	snprintf(queue_name, QUEUE_NAME_LENGTH, "ioq%d", i);
	que_tree = SYSCTL_ADD_NODE(ctrlr_ctx, ctrlr_list, OID_AUTO,
	- queue_name, CTLFLAG_RD, NULL, "IO Queue");
	+ queue_name, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "IO Queue");
	nvme_sysctl_initialize_queue(&ctrlr->ioq[i], ctrlr_ctx,
	que_tree);
	}
	Index: head/sys/dev/oce/oce_sysctl.c
	===================================================================
	--- head/sys/dev/oce/oce_sysctl.c
	+++ head/sys/dev/oce/oce_sysctl.c
	@@ -128,16 +128,16 @@
	0,"PVID");

	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "loop_back",
	- CTLTYPE_INT \| CTLFLAG_RW, (void *)sc, 0,
	- oce_sysctl_loopback, "I", "Loop Back Tests");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, (void *)sc, 0,
	+ oce_sysctl_loopback, "I", "Loop Back Tests");

	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "fw_upgrade",
	- CTLTYPE_STRING \| CTLFLAG_RW, (void *)sc, 0,
	- oce_sys_fwupgrade, "A", "Firmware ufi file");
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, (void *)sc, 0,
	+ oce_sys_fwupgrade, "A", "Firmware ufi file");

	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "aic_enable",
	- CTLTYPE_INT \| CTLFLAG_RW, (void *)sc, 1,
	- oce_sys_aic_enable, "I", "aic flags");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, (void *)sc, 1,
	+ oce_sys_aic_enable, "I", "aic flags");

	/*
	* Dumps Transceiver data
	@@ -146,14 +146,14 @@
	* "sysctl -b dev.oce.0.sfp_vpd_dump_buffer > sfp.bin" for binary dump
	*/
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "sfp_vpd_dump",
	- CTLTYPE_INT \| CTLFLAG_RW, (void *)sc, 0, oce_sysctl_sfp_vpd_dump,
	- "I", "Initiate a sfp_vpd_dump operation");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, (void *)sc, 0,
	+ oce_sysctl_sfp_vpd_dump, "I", "Initiate a sfp_vpd_dump operation");
	SYSCTL_ADD_OPAQUE(ctx, child, OID_AUTO, "sfp_vpd_dump_buffer",
	CTLFLAG_RD, sfp_vpd_dump_buffer,
	TRANSCEIVER_DATA_SIZE, "IU", "Access sfp_vpd_dump buffer");

	stats_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats",
	- CTLFLAG_RD, NULL, "Ethernet Statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Ethernet Statistics");

	if (IS_BE(sc) \|\| IS_SH(sc))
	oce_add_stats_sysctls_be3(sc, ctx, stats_node);
	@@ -720,9 +720,8 @@
	stats = &sc->oce_stats_info;

	rx_stats_node = SYSCTL_ADD_NODE(ctx,
	- SYSCTL_CHILDREN(stats_node),
	- OID_AUTO,"rx", CTLFLAG_RD,
	- NULL, "RX Ethernet Statistics");
	+ SYSCTL_CHILDREN(stats_node), OID_AUTO,"rx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "RX Ethernet Statistics");
	rx_stat_list = SYSCTL_CHILDREN(rx_stats_node);


	@@ -757,9 +756,8 @@
	for (i = 0; i < sc->nrqs; i++) {
	sprintf(prefix, "queue%d",i);
	queue_stats_node = SYSCTL_ADD_NODE(ctx,
	- SYSCTL_CHILDREN(rx_stats_node),
	- OID_AUTO, prefix, CTLFLAG_RD,
	- NULL, "Queue name");
	+ SYSCTL_CHILDREN(rx_stats_node), OID_AUTO, prefix,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Queue name");
	queue_stats_list = SYSCTL_CHILDREN(queue_stats_node);

	SYSCTL_ADD_QUAD(ctx, queue_stats_list, OID_AUTO, "rx_pkts",
	@@ -790,9 +788,8 @@
	}

	rx_stats_node = SYSCTL_ADD_NODE(ctx,
	- SYSCTL_CHILDREN(rx_stats_node),
	- OID_AUTO, "err", CTLFLAG_RD,
	- NULL, "Receive Error Stats");
	+ SYSCTL_CHILDREN(rx_stats_node), OID_AUTO, "err",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Receive Error Stats");
	rx_stat_list = SYSCTL_CHILDREN(rx_stats_node);

	SYSCTL_ADD_UINT(ctx, rx_stat_list, OID_AUTO, "crc_errs",
	@@ -853,9 +850,9 @@
	"Input FIFO Overflow Drop");

	tx_stats_node = SYSCTL_ADD_NODE(ctx,
	- SYSCTL_CHILDREN(stats_node), OID_AUTO,
	- "tx",CTLFLAG_RD, NULL,
	- "TX Ethernet Statistics");
	+ SYSCTL_CHILDREN(stats_node), OID_AUTO,
	+ "tx", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "TX Ethernet Statistics");
	tx_stat_list = SYSCTL_CHILDREN(tx_stats_node);

	SYSCTL_ADD_QUAD(ctx, tx_stat_list, OID_AUTO, "total_tx_pkts",
	@@ -893,9 +890,8 @@
	for (i = 0; i < sc->nwqs; i++) {
	sprintf(prefix, "queue%d",i);
	queue_stats_node = SYSCTL_ADD_NODE(ctx,
	- SYSCTL_CHILDREN(tx_stats_node),
	- OID_AUTO, prefix, CTLFLAG_RD,
	- NULL, "Queue name");
	+ SYSCTL_CHILDREN(tx_stats_node), OID_AUTO, prefix,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Queue name");
	queue_stats_list = SYSCTL_CHILDREN(queue_stats_node);

	SYSCTL_ADD_QUAD(ctx, queue_stats_list, OID_AUTO, "tx_pkts",
	@@ -942,9 +938,9 @@
	stats = &sc->oce_stats_info;

	rx_stats_node = SYSCTL_ADD_NODE(ctx,
	- SYSCTL_CHILDREN(stats_node),
	- OID_AUTO, "rx", CTLFLAG_RD,
	- NULL, "RX Ethernet Statistics");
	+ SYSCTL_CHILDREN(stats_node), OID_AUTO, "rx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "RX Ethernet Statistics");
	rx_stat_list = SYSCTL_CHILDREN(rx_stats_node);


	@@ -976,9 +972,8 @@
	for (i = 0; i < sc->nrqs; i++) {
	sprintf(prefix, "queue%d",i);
	queue_stats_node = SYSCTL_ADD_NODE(ctx,
	- SYSCTL_CHILDREN(rx_stats_node),
	- OID_AUTO, prefix, CTLFLAG_RD,
	- NULL, "Queue name");
	+ SYSCTL_CHILDREN(rx_stats_node), OID_AUTO, prefix,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Queue name");
	queue_stats_list = SYSCTL_CHILDREN(queue_stats_node);

	SYSCTL_ADD_QUAD(ctx, queue_stats_list, OID_AUTO, "rx_pkts",
	@@ -1005,9 +1000,8 @@
	}

	rx_stats_node = SYSCTL_ADD_NODE(ctx,
	- SYSCTL_CHILDREN(rx_stats_node),
	- OID_AUTO, "err", CTLFLAG_RD,
	- NULL, "Receive Error Stats");
	+ SYSCTL_CHILDREN(rx_stats_node), OID_AUTO, "err",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Receive Error Stats");
	rx_stat_list = SYSCTL_CHILDREN(rx_stats_node);

	SYSCTL_ADD_UQUAD(ctx, rx_stat_list, OID_AUTO, "crc_errs",
	@@ -1059,9 +1053,8 @@
	"Input FIFO Overflow Drop");

	tx_stats_node = SYSCTL_ADD_NODE(ctx,
	- SYSCTL_CHILDREN(stats_node),
	- OID_AUTO, "tx", CTLFLAG_RD,
	- NULL, "TX Ethernet Statistics");
	+ SYSCTL_CHILDREN(stats_node), OID_AUTO, "tx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "TX Ethernet Statistics");
	tx_stat_list = SYSCTL_CHILDREN(tx_stats_node);

	SYSCTL_ADD_QUAD(ctx, tx_stat_list, OID_AUTO, "total_tx_pkts",
	@@ -1096,9 +1089,8 @@
	for (i = 0; i < sc->nwqs; i++) {
	sprintf(prefix, "queue%d",i);
	queue_stats_node = SYSCTL_ADD_NODE(ctx,
	- SYSCTL_CHILDREN(tx_stats_node),
	- OID_AUTO, prefix, CTLFLAG_RD,
	- NULL, "Queue name");
	+ SYSCTL_CHILDREN(tx_stats_node), OID_AUTO, prefix,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Queue name");
	queue_stats_list = SYSCTL_CHILDREN(queue_stats_node);

	SYSCTL_ADD_QUAD(ctx, queue_stats_list, OID_AUTO, "tx_pkts",
	Index: head/sys/dev/ocs_fc/ocs_ioctl.c
	===================================================================
	--- head/sys/dev/ocs_fc/ocs_ioctl.c
	+++ head/sys/dev/ocs_fc/ocs_ioctl.c
	@@ -1132,38 +1132,38 @@
	0, "SLI Interface");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "fw_upgrade",
	- CTLTYPE_STRING \| CTLFLAG_RW, (void *)ocs, 0,
	- ocs_sys_fwupgrade, "A", "Firmware grp file");
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, (void *)ocs, 0,
	+ ocs_sys_fwupgrade, "A", "Firmware grp file");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "wwnn", CTLTYPE_STRING \| CTLFLAG_RW,
	- ocs, 0, ocs_sysctl_wwnn, "A",
	- "World Wide Node Name, wwnn should be in the format 0x<XXXXXXXXXXXXXXXX>");
	+ "wwnn", CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ ocs, 0, ocs_sysctl_wwnn, "A",
	+ "World Wide Node Name, wwnn should be in the format 0x<XXXXXXXXXXXXXXXX>");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "wwpn", CTLTYPE_STRING \| CTLFLAG_RW,
	- ocs, 0, ocs_sysctl_wwpn, "A",
	- "World Wide Port Name, wwpn should be in the format 0x<XXXXXXXXXXXXXXXX>");
	+ "wwpn", CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ ocs, 0, ocs_sysctl_wwpn, "A",
	+ "World Wide Port Name, wwpn should be in the format 0x<XXXXXXXXXXXXXXXX>");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "current_topology", CTLTYPE_UINT \| CTLFLAG_RD,
	- ocs, 0, ocs_sysctl_current_topology, "IU",
	- "Current Topology, 1-NPort; 2-Loop; 3-None");
	+ "current_topology", CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ ocs, 0, ocs_sysctl_current_topology, "IU",
	+ "Current Topology, 1-NPort; 2-Loop; 3-None");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "current_speed", CTLTYPE_UINT \| CTLFLAG_RD,
	- ocs, 0, ocs_sysctl_current_speed, "IU",
	- "Current Speed");
	+ "current_speed", CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ ocs, 0, ocs_sysctl_current_speed, "IU",
	+ "Current Speed");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "configured_topology", CTLTYPE_UINT \| CTLFLAG_RW,
	- ocs, 0, ocs_sysctl_config_topology, "IU",
	- "Configured Topology, 0-Auto; 1-NPort; 2-Loop");
	+ "configured_topology", CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ ocs, 0, ocs_sysctl_config_topology, "IU",
	+ "Configured Topology, 0-Auto; 1-NPort; 2-Loop");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "configured_speed", CTLTYPE_UINT \| CTLFLAG_RW,
	- ocs, 0, ocs_sysctl_config_speed, "IU",
	- "Configured Speed, 0-Auto, 2000, 4000, 8000, 16000, 32000");
	+ "configured_speed", CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ ocs, 0, ocs_sysctl_config_speed, "IU",
	+ "Configured Speed, 0-Auto, 2000, 4000, 8000, 16000, 32000");

	SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	"businfo", CTLFLAG_RD,
	@@ -1171,14 +1171,12 @@
	0, "Bus Info");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "fcid", CTLTYPE_STRING \| CTLFLAG_RD,
	- ocs, 0, ocs_sysctl_fcid, "A",
	- "Port FC ID");
	+ "fcid", CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ ocs, 0, ocs_sysctl_fcid, "A", "Port FC ID");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "port_state", CTLTYPE_STRING \| CTLFLAG_RW,
	- ocs, 0, ocs_sysctl_port_state, "A",
	- "configured port state");
	+ "port_state", CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ ocs, 0, ocs_sysctl_port_state, "A", "configured port state");

	for (i = 0; i < ocs->num_vports; i++) {
	fcp = FCPORT(ocs, i+1);
	@@ -1186,17 +1184,17 @@
	memset(name, 0, sizeof(name));
	snprintf(name, sizeof(name), "vport%d", i);
	vtree = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(tree),
	- OID_AUTO, name, CTLFLAG_RW, 0, "Virtual port");
	+ OID_AUTO, name, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Virtual port");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(vtree), OID_AUTO,
	- "wwnn", CTLTYPE_STRING \| CTLFLAG_RW,
	- fcp, 0, ocs_sysctl_vport_wwnn, "A",
	- "World Wide Node Name");
	+ "wwnn", CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ fcp, 0, ocs_sysctl_vport_wwnn, "A",
	+ "World Wide Node Name");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(vtree), OID_AUTO,
	- "wwpn", CTLTYPE_STRING \| CTLFLAG_RW,
	- fcp, 0, ocs_sysctl_vport_wwpn, "A",
	- "World Wide Port Name");
	+ "wwpn", CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ fcp, 0, ocs_sysctl_vport_wwpn, "A", "World Wide Port Name");

	}

	Index: head/sys/dev/ow/ow.c
	===================================================================
	--- head/sys/dev/ow/ow.c
	+++ head/sys/dev/ow/ow.c
	@@ -160,10 +160,11 @@
	.t_lowr = 1, /* 1 <= t < 2 */
	};

	-SYSCTL_NODE(_hw, OID_AUTO, ow, CTLFLAG_RD, 0, "1-Wire protocol");
	-SYSCTL_NODE(_hw_ow, OID_AUTO, regular, CTLFLAG_RD, 0,
	+SYSCTL_NODE(_hw, OID_AUTO, ow, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "1-Wire protocol");
	+SYSCTL_NODE(_hw_ow, OID_AUTO, regular, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Regular mode timings");
	-SYSCTL_NODE(_hw_ow, OID_AUTO, overdrive, CTLFLAG_RD, 0,
	+SYSCTL_NODE(_hw_ow, OID_AUTO, overdrive, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Overdrive mode timings");

	#define _OW_TIMING_SYSCTL(mode, param) \
	@@ -183,7 +184,7 @@
	return (0); \
	} \
	SYSCTL_PROC(_hw_ow_ ## mode, OID_AUTO, param, \
	- CTLTYPE_INT \| CTLFLAG_RWTUN, 0, sizeof(int), \
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, 0, sizeof(int), \
	sysctl_ow_timing_ ## mode ## _ ## param, "I", \
	"1-Wire timing parameter in microseconds (-1 resets to default)")

	Index: head/sys/dev/ow/ow_temp.c
	===================================================================
	--- head/sys/dev/ow/ow_temp.c
	+++ head/sys/dev/ow/ow_temp.c
	@@ -198,7 +198,8 @@
	sc->type = ow_get_family(dev);
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "temperature", CTLFLAG_RD \| CTLTYPE_INT,
	+ OID_AUTO, "temperature",
	+ CTLFLAG_RD \| CTLTYPE_INT \| CTLFLAG_NEEDGIANT,
	&sc->temp, 0, sysctl_handle_int,
	"IK3", "Current Temperature");
	SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
	Index: head/sys/dev/pccard/pccard.c
	===================================================================
	--- head/sys/dev/pccard/pccard.c
	+++ head/sys/dev/pccard/pccard.c
	@@ -63,7 +63,8 @@
	#define PCCARDDEBUG

	/* sysctl vars */
	-static SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD, 0, "PCCARD parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "PCCARD parameters");

	int pccard_debug = 0;
	SYSCTL_INT(_hw_pccard, OID_AUTO, debug, CTLFLAG_RWTUN,
	Index: head/sys/dev/pccbb/pccbb.c
	===================================================================
	--- head/sys/dev/pccbb/pccbb.c
	+++ head/sys/dev/pccbb/pccbb.c
	@@ -127,7 +127,8 @@
	devclass_t cbb_devclass;

	/* sysctl vars */
	-static SYSCTL_NODE(_hw, OID_AUTO, cbb, CTLFLAG_RD, 0, "CBB parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, cbb, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "CBB parameters");

	/* There's no way to say TUNEABLE_LONG to get the right types */
	u_long cbb_start_mem = CBB_START_MEM;
	Index: head/sys/dev/pccbb/pccbb_isa.c
	===================================================================
	--- head/sys/dev/pccbb/pccbb_isa.c
	+++ head/sys/dev/pccbb/pccbb_isa.c
	@@ -72,7 +72,8 @@
	*****************************************************************************/

	/* sysctl vars */
	-static SYSCTL_NODE(_hw, OID_AUTO, pcic, CTLFLAG_RD, 0, "PCIC parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, pcic, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "PCIC parameters");

	static int isa_intr_mask = EXCA_INT_MASK_ALLOWED;
	SYSCTL_INT(_hw_pcic, OID_AUTO, intr_mask, CTLFLAG_RDTUN, &isa_intr_mask, 0,
	Index: head/sys/dev/puc/puc.c
	===================================================================
	--- head/sys/dev/puc/puc.c
	+++ head/sys/dev/puc/puc.c
	@@ -73,7 +73,8 @@

	static MALLOC_DEFINE(M_PUC, "PUC", "PUC driver");

	-SYSCTL_NODE(_hw, OID_AUTO, puc, CTLFLAG_RD, 0, "puc(9) driver configuration");
	+SYSCTL_NODE(_hw, OID_AUTO, puc, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "puc(9) driver configuration");

	struct puc_bar *
	puc_get_bar(struct puc_softc *sc, int rid)
	Index: head/sys/dev/qlnx/qlnxe/qlnx_os.c
	===================================================================
	--- head/sys/dev/qlnx/qlnxe/qlnx_os.c
	+++ head/sys/dev/qlnx/qlnxe/qlnx_os.c
	@@ -276,7 +276,8 @@



	-SYSCTL_NODE(_hw, OID_AUTO, qlnxe, CTLFLAG_RD, 0, "qlnxe driver parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, qlnxe, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "qlnxe driver parameters");

	/* Number of Queues: 0 (Auto) or 1 to 32 (fixed queue number) */
	static int qlnxe_queue_count = QLNX_DEFAULT_RSS;
	@@ -1549,7 +1550,7 @@
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(ha->pci_dev));

	ctx_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "spstat",
	- CTLFLAG_RD, NULL, "spstat");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "spstat");
	children = SYSCTL_CHILDREN(ctx_oid);

	SYSCTL_ADD_QUAD(ctx, children,
	@@ -1574,7 +1575,7 @@
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(ha->pci_dev));

	ctx_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "fpstat",
	- CTLFLAG_RD, NULL, "fpstat");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "fpstat");
	children = SYSCTL_CHILDREN(ctx_oid);

	for (i = 0; i < ha->num_rss; i++) {
	@@ -1583,7 +1584,7 @@
	snprintf(name_str, sizeof(name_str), "%d", i);

	ctx_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, name_str,
	- CTLFLAG_RD, NULL, name_str);
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, name_str);
	node_children = SYSCTL_CHILDREN(ctx_oid);

	/* Tx Related */
	@@ -1849,7 +1850,7 @@
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(ha->pci_dev));

	ctx_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "hwstat",
	- CTLFLAG_RD, NULL, "hwstat");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "hwstat");
	children = SYSCTL_CHILDREN(ctx_oid);

	SYSCTL_ADD_QUAD(ctx, children,
	@@ -2310,23 +2311,21 @@
	"tx_coalesce_usecs");

	SYSCTL_ADD_PROC(ctx, children,
	- OID_AUTO, "trigger_dump", (CTLTYPE_INT \| CTLFLAG_RW),
	- (void *)ha, 0,
	- qlnx_trigger_dump_sysctl, "I", "trigger_dump");
	+ OID_AUTO, "trigger_dump",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ (void *)ha, 0, qlnx_trigger_dump_sysctl, "I", "trigger_dump");

	SYSCTL_ADD_PROC(ctx, children,
	- OID_AUTO, "set_rx_coalesce_usecs",
	- (CTLTYPE_INT \| CTLFLAG_RW),
	- (void *)ha, 0,
	- qlnx_set_rx_coalesce, "I",
	- "rx interrupt coalesce period microseconds");
	+ OID_AUTO, "set_rx_coalesce_usecs",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ (void *)ha, 0, qlnx_set_rx_coalesce, "I",
	+ "rx interrupt coalesce period microseconds");

	SYSCTL_ADD_PROC(ctx, children,
	- OID_AUTO, "set_tx_coalesce_usecs",
	- (CTLTYPE_INT \| CTLFLAG_RW),
	- (void *)ha, 0,
	- qlnx_set_tx_coalesce, "I",
	- "tx interrupt coalesce period microseconds");
	+ OID_AUTO, "set_tx_coalesce_usecs",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ (void *)ha, 0, qlnx_set_tx_coalesce, "I",
	+ "tx interrupt coalesce period microseconds");

	ha->rx_pkt_threshold = 128;
	SYSCTL_ADD_UINT(ctx, children,
	Index: head/sys/dev/qlnx/qlnxr/qlnxr_os.c
	===================================================================
	--- head/sys/dev/qlnx/qlnxr/qlnxr_os.c
	+++ head/sys/dev/qlnx/qlnxr/qlnxr_os.c
	@@ -34,7 +34,8 @@

	#include "qlnxr_def.h"

	-SYSCTL_NODE(_dev, OID_AUTO, qnxr, CTLFLAG_RW, 0, "Qlogic RDMA module");
	+SYSCTL_NODE(_dev, OID_AUTO, qnxr, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Qlogic RDMA module");

	uint32_t delayed_ack = 0;
	SYSCTL_UINT(_dev_qnxr, OID_AUTO, delayed_ack, CTLFLAG_RW, &delayed_ack, 1,
	Index: head/sys/dev/qlxgb/qla_os.c
	===================================================================
	--- head/sys/dev/qlxgb/qla_os.c
	+++ head/sys/dev/qlxgb/qla_os.c
	@@ -151,10 +151,9 @@
	device_t dev = ha->pci_dev;

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	- SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "stats", CTLTYPE_INT \| CTLFLAG_RD,
	- (void *)ha, 0,
	- qla_sysctl_get_stats, "I", "Statistics");
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	+ OID_AUTO, "stats", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ (void *)ha, 0, qla_sysctl_get_stats, "I", "Statistics");

	SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	Index: head/sys/dev/qlxgbe/ql_hw.c
	===================================================================
	--- head/sys/dev/qlxgbe/ql_hw.c
	+++ head/sys/dev/qlxgbe/ql_hw.c
	@@ -263,7 +263,7 @@
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(ha->pci_dev));

	ctx_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "stats_hw_mac",
	- CTLFLAG_RD, NULL, "stats_hw_mac");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "stats_hw_mac");
	children = SYSCTL_CHILDREN(ctx_oid);

	SYSCTL_ADD_QUAD(ctx, children,
	@@ -480,7 +480,7 @@
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(ha->pci_dev));

	ctx_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "stats_hw_rcv",
	- CTLFLAG_RD, NULL, "stats_hw_rcv");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "stats_hw_rcv");
	children = SYSCTL_CHILDREN(ctx_oid);

	SYSCTL_ADD_QUAD(ctx, children,
	@@ -600,7 +600,7 @@
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(ha->pci_dev));

	ctx_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "stats_hw_xmt",
	- CTLFLAG_RD, NULL, "stats_hw_xmt");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "stats_hw_xmt");
	children = SYSCTL_CHILDREN(ctx_oid);

	for (i = 0; i < ha->hw.num_tx_rings; i++) {
	@@ -609,7 +609,7 @@
	snprintf(name_str, sizeof(name_str), "%d", i);

	ctx_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, name_str,
	- CTLFLAG_RD, NULL, name_str);
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, name_str);
	node_children = SYSCTL_CHILDREN(ctx_oid);

	/* Tx Related */
	@@ -779,7 +779,7 @@
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(ha->pci_dev));

	ctx_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "stats_drvr_sds",
	- CTLFLAG_RD, NULL, "stats_drvr_sds");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "stats_drvr_sds");
	children = SYSCTL_CHILDREN(ctx_oid);

	for (i = 0; i < ha->hw.num_sds_rings; i++) {
	@@ -788,7 +788,7 @@
	snprintf(name_str, sizeof(name_str), "%d", i);

	ctx_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, name_str,
	- CTLFLAG_RD, NULL, name_str);
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, name_str);
	node_children = SYSCTL_CHILDREN(ctx_oid);

	SYSCTL_ADD_QUAD(ctx, node_children,
	@@ -818,7 +818,7 @@
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(ha->pci_dev));

	ctx_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "stats_drvr_rds",
	- CTLFLAG_RD, NULL, "stats_drvr_rds");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "stats_drvr_rds");
	children = SYSCTL_CHILDREN(ctx_oid);

	for (i = 0; i < ha->hw.num_rds_rings; i++) {
	@@ -827,7 +827,7 @@
	snprintf(name_str, sizeof(name_str), "%d", i);

	ctx_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, name_str,
	- CTLFLAG_RD, NULL, name_str);
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, name_str);
	node_children = SYSCTL_CHILDREN(ctx_oid);

	SYSCTL_ADD_QUAD(ctx, node_children,
	@@ -863,7 +863,7 @@
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(ha->pci_dev));

	ctx_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "stats_drvr_xmt",
	- CTLFLAG_RD, NULL, "stats_drvr_xmt");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "stats_drvr_xmt");
	children = SYSCTL_CHILDREN(ctx_oid);

	for (i = 0; i < ha->hw.num_tx_rings; i++) {
	@@ -872,7 +872,7 @@
	snprintf(name_str, sizeof(name_str), "%d", i);

	ctx_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, name_str,
	- CTLFLAG_RD, NULL, name_str);
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, name_str);
	node_children = SYSCTL_CHILDREN(ctx_oid);

	SYSCTL_ADD_QUAD(ctx, node_children,
	@@ -979,35 +979,32 @@
	"\tto take effect \n");

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	- SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "port_cfg", CTLTYPE_INT \| CTLFLAG_RW,
	- (void *)ha, 0,
	- qla_sysctl_port_cfg, "I",
	- "Set Port Configuration if values below "
	- "otherwise Get Port Configuration\n"
	- "\tBits 0-3 ; 1 = DCBX Enable; 0 = DCBX Disable\n"
	- "\tBits 4-7 : 0 = no pause; 1 = std ; 2 = ppm \n"
	- "\tBits 8-11: std pause cfg; 0 = xmt and rcv;"
	- " 1 = xmt only; 2 = rcv only;\n"
	- );
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	+ "port_cfg", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ (void *)ha, 0, qla_sysctl_port_cfg, "I",
	+ "Set Port Configuration if values below "
	+ "otherwise Get Port Configuration\n"
	+ "\tBits 0-3 ; 1 = DCBX Enable; 0 = DCBX Disable\n"
	+ "\tBits 4-7 : 0 = no pause; 1 = std ; 2 = ppm \n"
	+ "\tBits 8-11: std pause cfg; 0 = xmt and rcv;"
	+ " 1 = xmt only; 2 = rcv only;\n");

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	- SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "set_cam_search_mode", CTLTYPE_INT \| CTLFLAG_RW,
	- (void *)ha, 0,
	- qla_sysctl_set_cam_search_mode, "I",
	- "Set CAM Search Mode"
	- "\t 1 = search mode internal\n"
	- "\t 2 = search mode auto\n");
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	+ "set_cam_search_mode", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ (void *)ha, 0, qla_sysctl_set_cam_search_mode, "I",
	+ "Set CAM Search Mode"
	+ "\t 1 = search mode internal\n"
	+ "\t 2 = search mode auto\n");

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	- SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "get_cam_search_mode", CTLTYPE_INT \| CTLFLAG_RW,
	- (void *)ha, 0,
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	+ "get_cam_search_mode",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, (void *)ha, 0,
	qla_sysctl_get_cam_search_mode, "I",
	- "Get CAM Search Mode"
	- "\t 1 = search mode internal\n"
	- "\t 2 = search mode auto\n");
	+ "Get CAM Search Mode"
	+ "\t 1 = search mode internal\n"
	+ "\t 2 = search mode auto\n");

	ha->hw.enable_9kb = 1;

	@@ -1097,10 +1094,9 @@
	"\t\t\t 16: tx_buf[next_prod_index].mbuf != NULL\n" );

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	- SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "peg_stop", CTLTYPE_INT \| CTLFLAG_RW,
	- (void *)ha, 0,
	- qla_sysctl_stop_pegs, "I", "Peg Stop");
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	+ "peg_stop", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ (void *)ha, 0, qla_sysctl_stop_pegs, "I", "Peg Stop");

	#endif /* #ifdef QL_DBG */

	Index: head/sys/dev/qlxgbe/ql_os.c
	===================================================================
	--- head/sys/dev/qlxgbe/ql_os.c
	+++ head/sys/dev/qlxgbe/ql_os.c
	@@ -176,10 +176,9 @@
	ha->fw_ver_str, 0, "firmware version");

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	- SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "link_status", CTLTYPE_INT \| CTLFLAG_RW,
	- (void *)ha, 0,
	- qla_sysctl_get_link_status, "I", "Link Status");
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	+ "link_status", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ (void *)ha, 0, qla_sysctl_get_link_status, "I", "Link Status");

	ha->dbg_level = 0;
	SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
	Index: head/sys/dev/qlxge/qls_hw.c
	===================================================================
	--- head/sys/dev/qlxge/qls_hw.c
	+++ head/sys/dev/qlxge/qls_hw.c
	@@ -160,16 +160,16 @@
	ha->num_tx_rings, "Number of Transmit Rings");

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	- SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "mpi_dump", CTLTYPE_INT \| CTLFLAG_RW,
	- (void *)ha, 0,
	- qls_syctl_mpi_dump, "I", "MPI Dump");
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	+ OID_AUTO, "mpi_dump",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, (void *)ha, 0,
	+ qls_syctl_mpi_dump, "I", "MPI Dump");

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	- SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "link_status", CTLTYPE_INT \| CTLFLAG_RW,
	- (void *)ha, 0,
	- qls_syctl_link_status, "I", "Link Status");
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	+ OID_AUTO, "link_status",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, (void *)ha, 0,
	+ qls_syctl_link_status, "I", "Link Status");
	}

	/*
	Index: head/sys/dev/qlxge/qls_os.c
	===================================================================
	--- head/sys/dev/qlxge/qls_os.c
	+++ head/sys/dev/qlxge/qls_os.c
	@@ -280,10 +280,10 @@
	&qls_dbg_level, qls_dbg_level, "Debug Level");

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	- SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "drvr_stats", CTLTYPE_INT \| CTLFLAG_RW,
	- (void *)ha, 0,
	- qls_sysctl_get_drvr_stats, "I", "Driver Maintained Statistics");
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	+ OID_AUTO, "drvr_stats",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, (void *)ha, 0,
	+ qls_sysctl_get_drvr_stats, "I", "Driver Maintained Statistics");

	return;
	}
	Index: head/sys/dev/re/if_re.c
	===================================================================
	--- head/sys/dev/re/if_re.c
	+++ head/sys/dev/re/if_re.c
	@@ -3969,14 +3969,15 @@
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->rl_dev));

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "stats",
	- CTLTYPE_INT \| CTLFLAG_RW, sc, 0, re_sysctl_stats, "I",
	- "Statistics Information");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ re_sysctl_stats, "I", "Statistics Information");
	if ((sc->rl_flags & (RL_FLAG_MSI \| RL_FLAG_MSIX)) == 0)
	return;

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "int_rx_mod",
	- CTLTYPE_INT \| CTLFLAG_RW, &sc->rl_int_rx_mod, 0,
	- sysctl_hw_re_int_mod, "I", "re RX interrupt moderation");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &sc->rl_int_rx_mod, 0, sysctl_hw_re_int_mod, "I",
	+ "re RX interrupt moderation");
	/* Pull in device tunables. */
	sc->rl_int_rx_mod = RL_TIMER_DEFAULT;
	error = resource_int_value(device_get_name(sc->rl_dev),
	Index: head/sys/dev/rndtest/rndtest.c
	===================================================================
	--- head/sys/dev/rndtest/rndtest.c
	+++ head/sys/dev/rndtest/rndtest.c
	@@ -72,8 +72,8 @@

	#define RNDTEST_NTESTS nitems(rndtest_funcs)

	-static SYSCTL_NODE(_kern, OID_AUTO, rndtest, CTLFLAG_RD, 0,
	- "RNG test parameters");
	+static SYSCTL_NODE(_kern, OID_AUTO, rndtest, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "RNG test parameters");
	static int rndtest_retest = 120; /* interval in seconds */
	SYSCTL_INT(_kern_rndtest, OID_AUTO, retest, CTLFLAG_RW, &rndtest_retest,
	0, "retest interval (seconds)");
	Index: head/sys/dev/rt/if_rt.c
	===================================================================
	--- head/sys/dev/rt/if_rt.c
	+++ head/sys/dev/rt/if_rt.c
	@@ -184,7 +184,8 @@
	static int rt_ifmedia_upd(struct ifnet *);
	static void rt_ifmedia_sts(struct ifnet , struct ifmediareq );

	-static SYSCTL_NODE(_hw, OID_AUTO, rt, CTLFLAG_RD, 0, "RT driver parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, rt, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "RT driver parameters");
	#ifdef IF_RT_DEBUG
	static int rt_debug = 0;
	SYSCTL_INT(_hw_rt, OID_AUTO, debug, CTLFLAG_RWTUN, &rt_debug, 0,
	@@ -2581,7 +2582,7 @@

	/* statistic counters */
	stats = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "stats", CTLFLAG_RD, 0, "statistic");
	+ "stats", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "statistic");

	SYSCTL_ADD_ULONG(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
	"interrupts", CTLFLAG_RD, &sc->interrupts,
	Index: head/sys/dev/safe/safe.c
	===================================================================
	--- head/sys/dev/safe/safe.c
	+++ head/sys/dev/safe/safe.c
	@@ -143,7 +143,7 @@

	static int safe_free_entry(struct safe_softc , struct safe_ringentry );

	-static SYSCTL_NODE(_hw, OID_AUTO, safe, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_hw, OID_AUTO, safe, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"SafeNet driver parameters");

	#ifdef SAFE_DEBUG
	@@ -2162,6 +2162,8 @@
	}
	return error;
	}
	-SYSCTL_PROC(_hw_safe, OID_AUTO, dump, CTLTYPE_STRING \| CTLFLAG_RW,
	- 0, 0, sysctl_hw_safe_dump, "A", "Dump driver state");
	+SYSCTL_PROC(_hw_safe, OID_AUTO, dump,
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, 0,
	+ sysctl_hw_safe_dump, "A",
	+ "Dump driver state");
	#endif /* SAFE_DEBUG */
	Index: head/sys/dev/sdhci/sdhci.c
	===================================================================
	--- head/sys/dev/sdhci/sdhci.c
	+++ head/sys/dev/sdhci/sdhci.c
	@@ -67,7 +67,8 @@

	#include "opt_mmccam.h"

	-SYSCTL_NODE(_hw, OID_AUTO, sdhci, CTLFLAG_RD, 0, "sdhci driver");
	+SYSCTL_NODE(_hw, OID_AUTO, sdhci, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "sdhci driver");

	static int sdhci_debug = 0;
	SYSCTL_INT(_hw_sdhci, OID_AUTO, debug, CTLFLAG_RWTUN, &sdhci_debug, 0,
	Index: head/sys/dev/sfxge/sfxge.c
	===================================================================
	--- head/sys/dev/sfxge/sfxge.c
	+++ head/sys/dev/sfxge/sfxge.c
	@@ -86,8 +86,8 @@
	MALLOC_DEFINE(M_SFXGE, "sfxge", "Solarflare 10GigE driver");


	-SYSCTL_NODE(_hw, OID_AUTO, sfxge, CTLFLAG_RD, 0,
	- "SFXGE driver parameters");
	+SYSCTL_NODE(_hw, OID_AUTO, sfxge, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "SFXGE driver parameters");

	#define SFXGE_PARAM_RX_RING SFXGE_PARAM(rx_ring)
	static int sfxge_rx_ring_entries = SFXGE_NDESCS;
	@@ -704,10 +704,9 @@
	TUNABLE_INT_FETCH(mcdi_log_param_name, &sc->mcdi_logging);
	#endif

	- sc->stats_node = SYSCTL_ADD_NODE(
	- device_get_sysctl_ctx(dev),
	- SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "stats", CTLFLAG_RD, NULL, "Statistics");
	+ sc->stats_node = SYSCTL_ADD_NODE(device_get_sysctl_ctx(dev),
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Statistics");
	if (sc->stats_node == NULL) {
	error = ENOMEM;
	goto fail;
	@@ -970,10 +969,10 @@
	if (efx_vpd_get(sc->enp, sc->vpd_data, sc->vpd_size, &value) != 0)
	return;

	- SYSCTL_ADD_PROC(
	- ctx, list, OID_AUTO, keyword, CTLTYPE_STRING\|CTLFLAG_RD,
	- sc, tag << 16 \| EFX_VPD_KEYWORD(keyword[0], keyword[1]),
	- sfxge_vpd_handler, "A", "");
	+ SYSCTL_ADD_PROC(ctx, list, OID_AUTO, keyword,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ sc, tag << 16 \| EFX_VPD_KEYWORD(keyword[0], keyword[1]),
	+ sfxge_vpd_handler, "A", "");
	}

	static int
	@@ -1007,9 +1006,9 @@
	device_printf(sc->dev, "%s\n", value.evv_value);
	}

	- vpd_node = SYSCTL_ADD_NODE(
	- ctx, SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)),
	- OID_AUTO, "vpd", CTLFLAG_RD, NULL, "Vital Product Data");
	+ vpd_node = SYSCTL_ADD_NODE(ctx,
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)), OID_AUTO, "vpd",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Vital Product Data");
	vpd_list = SYSCTL_CHILDREN(vpd_node);

	/* Add sysctls for all expected and any vendor-defined keywords. */
	Index: head/sys/dev/sfxge/sfxge_ev.c
	===================================================================
	--- head/sys/dev/sfxge/sfxge_ev.c
	+++ head/sys/dev/sfxge/sfxge_ev.c
	@@ -494,18 +494,16 @@

	snprintf(name, sizeof(name), "%u", evq->index);
	evq_stats_node = SYSCTL_ADD_NODE(ctx,
	- SYSCTL_CHILDREN(sc->evqs_stats_node),
	- OID_AUTO, name, CTLFLAG_RD, NULL, "");
	+ SYSCTL_CHILDREN(sc->evqs_stats_node), OID_AUTO, name,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	if (evq_stats_node == NULL)
	return (ENOMEM);

	for (id = 0; id < EV_NQSTATS; id++) {
	- SYSCTL_ADD_PROC(
	- ctx, SYSCTL_CHILDREN(evq_stats_node),
	- OID_AUTO, efx_ev_qstat_name(sc->enp, id),
	- CTLTYPE_U64\|CTLFLAG_RD,
	- evq, id, sfxge_evq_stat_handler, "Q",
	- "");
	+ SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(evq_stats_node),
	+ OID_AUTO, efx_ev_qstat_name(sc->enp, id),
	+ CTLTYPE_U64 \| CTLFLAG_RD \| CTLFLAG_MPSAFE, evq, id,
	+ sfxge_evq_stat_handler, "Q", "");
	}

	return (0);
	@@ -564,11 +562,9 @@
	for (id = 0; id < EV_NQSTATS; id++) {
	snprintf(name, sizeof(name), "ev_%s",
	efx_ev_qstat_name(sc->enp, id));
	- SYSCTL_ADD_PROC(
	- ctx, stat_list,
	- OID_AUTO, name, CTLTYPE_U64\|CTLFLAG_RD,
	- sc, id, sfxge_ev_stat_handler, "Q",
	- "");
	+ SYSCTL_ADD_PROC(ctx, stat_list, OID_AUTO, name,
	+ CTLTYPE_U64 \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ sc, id, sfxge_ev_stat_handler, "Q", "");
	}
	}

	@@ -1004,14 +1000,15 @@
	*/
	sc->ev_moderation = SFXGE_MODERATION;
	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
	- OID_AUTO, "int_mod", CTLTYPE_UINT\|CTLFLAG_RW,
	- sc, 0, sfxge_int_mod_handler, "IU",
	- "sfxge interrupt moderation (us)");
	+ OID_AUTO, "int_mod", CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ sc, 0, sfxge_int_mod_handler, "IU",
	+ "sfxge interrupt moderation (us)");

	#if EFSYS_OPT_QSTATS
	sc->evqs_stats_node = SYSCTL_ADD_NODE(
	- device_get_sysctl_ctx(sc->dev), SYSCTL_CHILDREN(sc->stats_node),
	- OID_AUTO, "evq", CTLFLAG_RD, NULL, "Event queues stats");
	+ device_get_sysctl_ctx(sc->dev), SYSCTL_CHILDREN(sc->stats_node),
	+ OID_AUTO, "evq", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "Event queues stats");
	if (sc->evqs_stats_node == NULL) {
	rc = ENOMEM;
	goto fail_evqs_stats_node;
	Index: head/sys/dev/sfxge/sfxge_port.c
	===================================================================
	--- head/sys/dev/sfxge/sfxge_port.c
	+++ head/sys/dev/sfxge/sfxge_port.c
	@@ -194,11 +194,9 @@
	/* Initialise the named stats */
	for (id = 0; id < EFX_MAC_NSTATS; id++) {
	name = efx_mac_stat_name(sc->enp, id);
	- SYSCTL_ADD_PROC(
	- ctx, stat_list,
	- OID_AUTO, name, CTLTYPE_U64\|CTLFLAG_RD,
	- sc, id, sfxge_mac_stat_handler, "Q",
	- "");
	+ SYSCTL_ADD_PROC(ctx, stat_list, OID_AUTO, name,
	+ CTLTYPE_U64 \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ sc, id, sfxge_mac_stat_handler, "Q", "");
	}
	}

	@@ -650,12 +648,10 @@
	if (!(stat_mask & ((uint64_t)1 << id)))
	continue;
	name = efx_phy_stat_name(sc->enp, id);
	- SYSCTL_ADD_PROC(
	- ctx, stat_list,
	- OID_AUTO, name, CTLTYPE_UINT\|CTLFLAG_RD,
	- sc, id, sfxge_phy_stat_handler,
	- id == EFX_PHY_STAT_OUI ? "IX" : "IU",
	- "");
	+ SYSCTL_ADD_PROC(ctx, stat_list, OID_AUTO, name,
	+ CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ sc, id, sfxge_phy_stat_handler,
	+ id == EFX_PHY_STAT_OUI ? "IX" : "IU", "");
	}
	}

	@@ -787,10 +783,10 @@
	* ifmedia, provide sysctls for it. */
	port->wanted_fc = EFX_FCNTL_RESPOND \| EFX_FCNTL_GENERATE;
	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "wanted_fc", CTLTYPE_UINT\|CTLFLAG_RW, sc, 0,
	+ "wanted_fc", CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, sc, 0,
	sfxge_port_wanted_fc_handler, "IU", "wanted flow control mode");
	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "link_fc", CTLTYPE_UINT\|CTLFLAG_RD, sc, 0,
	+ "link_fc", CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, sc, 0,
	sfxge_port_link_fc_handler, "IU", "link flow control mode");
	#endif

	@@ -806,7 +802,8 @@
	sfxge_mac_stat_init(sc);

	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
	- "stats_update_period_ms", CTLTYPE_UINT\|CTLFLAG_RW, sc, 0,
	+ "stats_update_period_ms",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, sc, 0,
	sfxge_port_stats_update_period_ms_handler, "IU",
	"interface statistics refresh period");

	Index: head/sys/dev/sfxge/sfxge_rx.c
	===================================================================
	--- head/sys/dev/sfxge/sfxge_rx.c
	+++ head/sys/dev/sfxge/sfxge_rx.c
	@@ -73,8 +73,8 @@

	#ifdef SFXGE_LRO

	-SYSCTL_NODE(_hw_sfxge, OID_AUTO, lro, CTLFLAG_RD, NULL,
	- "Large receive offload (LRO) parameters");
	+SYSCTL_NODE(_hw_sfxge, OID_AUTO, lro, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "Large receive offload (LRO) parameters");

	#define SFXGE_LRO_PARAM(_param) SFXGE_PARAM(lro._param)

	@@ -1356,12 +1356,10 @@
	stat_list = SYSCTL_CHILDREN(sc->stats_node);

	for (id = 0; id < nitems(sfxge_rx_stats); id++) {
	- SYSCTL_ADD_PROC(
	- ctx, stat_list,
	- OID_AUTO, sfxge_rx_stats[id].name,
	- CTLTYPE_UINT\|CTLFLAG_RD,
	- sc, id, sfxge_rx_stat_handler, "IU",
	- "");
	+ SYSCTL_ADD_PROC(ctx, stat_list, OID_AUTO,
	+ sfxge_rx_stats[id].name,
	+ CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ sc, id, sfxge_rx_stat_handler, "IU", "");
	}
	}

	Index: head/sys/dev/sfxge/sfxge_tx.c
	===================================================================
	--- head/sys/dev/sfxge/sfxge_tx.c
	+++ head/sys/dev/sfxge/sfxge_tx.c
	@@ -1760,8 +1760,7 @@
	unsigned int id;

	stat_node = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(txq_node), OID_AUTO,
	- "stats", CTLFLAG_RD, NULL,
	- "Tx queue statistics");
	+ "stats", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Tx queue statistics");
	if (stat_node == NULL)
	return (ENOMEM);

	@@ -1872,7 +1871,7 @@

	snprintf(name, sizeof(name), "%u", txq_index);
	txq_node = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(sc->txqs_node),
	- OID_AUTO, name, CTLFLAG_RD, NULL, "");
	+ OID_AUTO, name, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	if (txq_node == NULL) {
	rc = ENOMEM;
	goto fail_txq_node;
	@@ -1892,8 +1891,8 @@
	SFXGE_TXQ_LOCK_INIT(txq, device_get_nameunit(sc->dev), txq_index);

	dpl_node = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(txq_node), OID_AUTO,
	- "dpl", CTLFLAG_RD, NULL,
	- "Deferred packet list statistics");
	+ "dpl", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "Deferred packet list statistics");
	if (dpl_node == NULL) {
	rc = ENOMEM;
	goto fail_dpl_node;
	@@ -1966,12 +1965,10 @@
	stat_list = SYSCTL_CHILDREN(sc->stats_node);

	for (id = 0; id < nitems(sfxge_tx_stats); id++) {
	- SYSCTL_ADD_PROC(
	- ctx, stat_list,
	- OID_AUTO, sfxge_tx_stats[id].name,
	- CTLTYPE_ULONG\|CTLFLAG_RD,
	- sc, id, sfxge_tx_stat_handler, "LU",
	- "");
	+ SYSCTL_ADD_PROC(ctx, stat_list, OID_AUTO,
	+ sfxge_tx_stats[id].name,
	+ CTLTYPE_ULONG \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ sc, id, sfxge_tx_stat_handler, "LU", "");
	}
	}

	@@ -2054,10 +2051,9 @@
	(!encp->enc_fw_assisted_tso_v2_enabled))
	sc->tso_fw_assisted &= ~SFXGE_FATSOV2;

	- sc->txqs_node = SYSCTL_ADD_NODE(
	- device_get_sysctl_ctx(sc->dev),
	- SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)),
	- OID_AUTO, "txq", CTLFLAG_RD, NULL, "Tx queues");
	+ sc->txqs_node = SYSCTL_ADD_NODE(device_get_sysctl_ctx(sc->dev),
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)), OID_AUTO,
	+ "txq", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Tx queues");
	if (sc->txqs_node == NULL) {
	rc = ENOMEM;
	goto fail_txq_node;
	Index: head/sys/dev/sk/if_sk.c
	===================================================================
	--- head/sys/dev/sk/if_sk.c
	+++ head/sys/dev/sk/if_sk.c
	@@ -1596,7 +1596,8 @@

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "int_mod", CTLTYPE_INT\|CTLFLAG_RW,
	+ OID_AUTO, "int_mod",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&sc->sk_int_mod, 0, sysctl_hw_sk_int_mod, "I",
	"SK interrupt moderation");

	Index: head/sys/dev/sound/clone.c
	===================================================================
	--- head/sys/dev/sound/clone.c
	+++ head/sys/dev/sound/clone.c
	@@ -158,8 +158,9 @@

	return (err);
	}
	-SYSCTL_PROC(_hw_snd, OID_AUTO, timestamp_precision, CTLTYPE_INT \| CTLFLAG_RW,
	- 0, sizeof(int), sysctl_hw_snd_timestamp_precision, "I",
	+SYSCTL_PROC(_hw_snd, OID_AUTO, timestamp_precision,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_hw_snd_timestamp_precision, "I",
	"timestamp precision (0=s 1=hz 2=us 3=ns)");
	#endif

	Index: head/sys/dev/sound/midi/midi.c
	===================================================================
	--- head/sys/dev/sound/midi/midi.c
	+++ head/sys/dev/sound/midi/midi.c
	@@ -243,8 +243,10 @@
	/*
	* Misc declr.
	*/
	-SYSCTL_NODE(_hw, OID_AUTO, midi, CTLFLAG_RD, 0, "Midi driver");
	-static SYSCTL_NODE(_hw_midi, OID_AUTO, stat, CTLFLAG_RD, 0, "Status device");
	+SYSCTL_NODE(_hw, OID_AUTO, midi, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Midi driver");
	+static SYSCTL_NODE(_hw_midi, OID_AUTO, stat, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Status device");

	int midi_debug;
	/* XXX: should this be moved into debug.midi? */
	Index: head/sys/dev/sound/midi/sequencer.c
	===================================================================
	--- head/sys/dev/sound/midi/sequencer.c
	+++ head/sys/dev/sound/midi/sequencer.c
	@@ -159,7 +159,8 @@
	* we currently own.
	*/

	-SYSCTL_NODE(_hw_midi, OID_AUTO, seq, CTLFLAG_RD, 0, "Midi sequencer");
	+SYSCTL_NODE(_hw_midi, OID_AUTO, seq, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Midi sequencer");

	int seq_debug;
	/* XXX: should this be moved into debug.midi? */
	Index: head/sys/dev/sound/pci/atiixp.c
	===================================================================
	--- head/sys/dev/sound/pci/atiixp.c
	+++ head/sys/dev/sound/pci/atiixp.c
	@@ -1096,8 +1096,8 @@

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(sc->dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)), OID_AUTO,
	- "polling", CTLTYPE_INT \| CTLFLAG_RW, sc->dev, sizeof(sc->dev),
	- sysctl_atiixp_polling, "I", "Enable polling mode");
	+ "polling", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, sc->dev,
	+ sizeof(sc->dev), sysctl_atiixp_polling, "I", "Enable polling mode");

	snprintf(status, SND_STATUSLEN, "at memory 0x%jx irq %jd %s",
	rman_get_start(sc->reg), rman_get_start(sc->irq),
	Index: head/sys/dev/sound/pci/emu10kx.c
	===================================================================
	--- head/sys/dev/sound/pci/emu10kx.c
	+++ head/sys/dev/sound/pci/emu10kx.c
	@@ -1577,10 +1577,9 @@
	*/
	snprintf(sysctl_name, 32, "_%s", mix_name);
	SYSCTL_ADD_PROC(sc->ctx,
	- SYSCTL_CHILDREN(sc->root),
	- OID_AUTO, sysctl_name,
	- CTLTYPE_INT \| CTLFLAG_RW, sc, mix_id,
	- sysctl_emu_mixer_control, "I", "");
	+ SYSCTL_CHILDREN(sc->root), OID_AUTO, sysctl_name,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, mix_id,
	+ sysctl_emu_mixer_control, "I", "");
	}

	return (volgpr);
	@@ -1618,11 +1617,10 @@
	emu_digitalswitch(struct emu_sc_info *sc)
	{
	/* XXX temporary? */
	- SYSCTL_ADD_PROC(sc->ctx,
	- SYSCTL_CHILDREN(sc->root),
	- OID_AUTO, "_digital",
	- CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	- sysctl_emu_digitalswitch_control, "I", "Enable digital output");
	+ SYSCTL_ADD_PROC(sc->ctx, SYSCTL_CHILDREN(sc->root), OID_AUTO,
	+ "_digital", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ sc, 0, sysctl_emu_digitalswitch_control, "I",
	+ "Enable digital output");

	return;
	}
	Index: head/sys/dev/sound/pci/es137x.c
	===================================================================
	--- head/sys/dev/sound/pci/es137x.c
	+++ head/sys/dev/sound/pci/es137x.c
	@@ -1647,8 +1647,8 @@
	<861wujij2q.fsf@xps.des.no> */
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "spdif_enabled", CTLTYPE_INT \| CTLFLAG_RW, dev, sizeof(dev),
	- sysctl_es137x_spdif_enable, "I",
	+ "spdif_enabled", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ dev, sizeof(dev), sysctl_es137x_spdif_enable, "I",
	"Enable S/PDIF output on primary playback channel");
	} else if (devid == ES1370_PCI_ID) {
	/*
	@@ -1663,7 +1663,8 @@
	<861wujij2q.fsf@xps.des.no> */
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "fixed_rate", CTLTYPE_INT \| CTLFLAG_RW,
	+ OID_AUTO, "fixed_rate",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	dev, sizeof(dev), sysctl_es137x_fixed_rate, "I",
	"Enable fixed rate playback/recording");
	}
	@@ -1680,8 +1681,8 @@
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	OID_AUTO, "single_pcm_mixer",
	- CTLTYPE_INT \| CTLFLAG_RW, dev, sizeof(dev),
	- sysctl_es137x_single_pcm_mixer, "I",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, dev,
	+ sizeof(dev), sysctl_es137x_single_pcm_mixer, "I",
	"Single PCM mixer controller for both DAC1/DAC2");
	}
	}
	@@ -1693,14 +1694,13 @@
	multimedia@ in msg-id <861wujij2q.fsf@xps.des.no> */
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "latency_timer", CTLTYPE_INT \| CTLFLAG_RW, dev, sizeof(dev),
	- sysctl_es137x_latency_timer, "I",
	+ "latency_timer", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ dev, sizeof(dev), sysctl_es137x_latency_timer, "I",
	"PCI Latency Timer configuration");
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "polling", CTLTYPE_INT \| CTLFLAG_RW, dev, sizeof(dev),
	- sysctl_es_polling, "I",
	- "Enable polling mode");
	+ "polling", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, dev,
	+ sizeof(dev), sysctl_es_polling, "I", "Enable polling mode");
	}

	static int
	Index: head/sys/dev/sound/pci/hda/hdaa.c
	===================================================================
	--- head/sys/dev/sound/pci/hda/hdaa.c
	+++ head/sys/dev/sound/pci/hda/hdaa.c
	@@ -6671,7 +6671,7 @@
	devinfo, 0, hdaa_sysctl_gpo_config, "A", "GPO configuration");
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "reconfig", CTLTYPE_INT \| CTLFLAG_RW,
	+ "reconfig", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	dev, 0, hdaa_sysctl_reconfig, "I", "Reprocess configuration");
	SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	Index: head/sys/dev/sound/pci/hda/hdac.c
	===================================================================
	--- head/sys/dev/sound/pci/hda/hdac.c
	+++ head/sys/dev/sound/pci/hda/hdac.c
	@@ -1565,12 +1565,12 @@

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(sc->dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)), OID_AUTO,
	- "pindump", CTLTYPE_INT \| CTLFLAG_RW, sc->dev, sizeof(sc->dev),
	- sysctl_hdac_pindump, "I", "Dump pin states/data");
	+ "pindump", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc->dev,
	+ sizeof(sc->dev), sysctl_hdac_pindump, "I", "Dump pin states/data");
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(sc->dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)), OID_AUTO,
	- "polling", CTLTYPE_INT \| CTLFLAG_RW, sc->dev, sizeof(sc->dev),
	- sysctl_hdac_polling, "I", "Enable polling mode");
	+ "polling", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc->dev,
	+ sizeof(sc->dev), sysctl_hdac_polling, "I", "Enable polling mode");
	}

	/****************************************************************************
	Index: head/sys/dev/sound/pci/maestro.c
	===================================================================
	--- head/sys/dev/sound/pci/maestro.c
	+++ head/sys/dev/sound/pci/maestro.c
	@@ -190,7 +190,8 @@
	/* XXX: this should move to a device specific sysctl dev.pcm.X.debug.Y via
	device_get_sysctl_*() as discussed on multimedia@ in msg-id
	<861wujij2q.fsf@xps.des.no> */
	-static SYSCTL_NODE(_debug, OID_AUTO, maestro, CTLFLAG_RD, 0, "");
	+static SYSCTL_NODE(_debug, OID_AUTO, maestro, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "");
	SYSCTL_UINT(_debug_maestro, OID_AUTO, powerstate_active, CTLFLAG_RW,
	&powerstate_active, 0, "The Dx power state when active (0-1)");
	SYSCTL_UINT(_debug_maestro, OID_AUTO, powerstate_idle, CTLFLAG_RW,
	Index: head/sys/dev/sound/pci/via8233.c
	===================================================================
	--- head/sys/dev/sound/pci/via8233.c
	+++ head/sys/dev/sound/pci/via8233.c
	@@ -258,19 +258,18 @@
	as discussed on multimedia@ in msg-id <861wujij2q.fsf@xps.des.no> */
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "spdif_enabled", CTLTYPE_INT \| CTLFLAG_RW, dev, sizeof(dev),
	- sysctl_via8233_spdif_enable, "I",
	+ "spdif_enabled", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ dev, sizeof(dev), sysctl_via8233_spdif_enable, "I",
	"Enable S/PDIF output on primary playback channel");
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "dxs_src", CTLTYPE_INT \| CTLFLAG_RW, dev, sizeof(dev),
	- sysctl_via8233_dxs_src, "I",
	+ "dxs_src", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ dev, sizeof(dev), sysctl_via8233_dxs_src, "I",
	"Enable VIA DXS Sample Rate Converter");
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "polling", CTLTYPE_INT \| CTLFLAG_RW, dev, sizeof(dev),
	- sysctl_via_polling, "I",
	- "Enable polling mode");
	+ "polling", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ dev, sizeof(dev), sysctl_via_polling, "I", "Enable polling mode");
	}

	static __inline uint32_t
	Index: head/sys/dev/sound/pcm/ac97.c
	===================================================================
	--- head/sys/dev/sound/pcm/ac97.c
	+++ head/sys/dev/sound/pcm/ac97.c
	@@ -919,7 +919,8 @@
	return;
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(codec->dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(codec->dev)),
	- OID_AUTO, "eapd", CTLTYPE_INT \| CTLFLAG_RW,
	+ OID_AUTO, "eapd",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	codec, sizeof(codec), sysctl_hw_snd_ac97_eapd,
	"I", "AC97 External Amplifier");
	}
	Index: head/sys/dev/sound/pcm/channel.c
	===================================================================
	--- head/sys/dev/sound/pcm/channel.c
	+++ head/sys/dev/sound/pcm/channel.c
	@@ -68,9 +68,10 @@

	return err;
	}
	-SYSCTL_PROC(_hw_snd, OID_AUTO, latency, CTLTYPE_INT \| CTLFLAG_RWTUN,
	- 0, sizeof(int), sysctl_hw_snd_latency, "I",
	- "buffering latency (0=low ... 10=high)");
	+SYSCTL_PROC(_hw_snd, OID_AUTO, latency,
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_hw_snd_latency, "I",
	+ "buffering latency (0=low ... 10=high)");

	int chn_latency_profile = CHN_LATENCY_PROFILE_DEFAULT;

	@@ -90,9 +91,10 @@

	return err;
	}
	-SYSCTL_PROC(_hw_snd, OID_AUTO, latency_profile, CTLTYPE_INT \| CTLFLAG_RWTUN,
	- 0, sizeof(int), sysctl_hw_snd_latency_profile, "I",
	- "buffering latency profile (0=aggressive 1=safe)");
	+SYSCTL_PROC(_hw_snd, OID_AUTO, latency_profile,
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_hw_snd_latency_profile, "I",
	+ "buffering latency profile (0=aggressive 1=safe)");

	static int chn_timeout = CHN_TIMEOUT;

	@@ -112,9 +114,10 @@

	return err;
	}
	-SYSCTL_PROC(_hw_snd, OID_AUTO, timeout, CTLTYPE_INT \| CTLFLAG_RWTUN,
	- 0, sizeof(int), sysctl_hw_snd_timeout, "I",
	- "interrupt timeout (1 - 10) seconds");
	+SYSCTL_PROC(_hw_snd, OID_AUTO, timeout,
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_hw_snd_timeout, "I",
	+ "interrupt timeout (1 - 10) seconds");

	static int chn_vpc_autoreset = 1;
	SYSCTL_INT(_hw_snd, OID_AUTO, vpc_autoreset, CTLFLAG_RWTUN,
	@@ -166,9 +169,10 @@

	return (0);
	}
	-SYSCTL_PROC(_hw_snd, OID_AUTO, vpc_0db, CTLTYPE_INT \| CTLFLAG_RWTUN,
	- 0, sizeof(int), sysctl_hw_snd_vpc_0db, "I",
	- "0db relative level");
	+SYSCTL_PROC(_hw_snd, OID_AUTO, vpc_0db,
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_hw_snd_vpc_0db, "I",
	+ "0db relative level");

	static int
	sysctl_hw_snd_vpc_reset(SYSCTL_HANDLER_ARGS)
	@@ -185,9 +189,10 @@

	return (0);
	}
	-SYSCTL_PROC(_hw_snd, OID_AUTO, vpc_reset, CTLTYPE_INT \| CTLFLAG_RW,
	- 0, sizeof(int), sysctl_hw_snd_vpc_reset, "I",
	- "reset volume on all channels");
	+SYSCTL_PROC(_hw_snd, OID_AUTO, vpc_reset,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_hw_snd_vpc_reset, "I",
	+ "reset volume on all channels");

	static int chn_usefrags = 0;
	static int chn_syncdelay = -1;
	Index: head/sys/dev/sound/pcm/feeder_eq.c
	===================================================================
	--- head/sys/dev/sound/pcm/feeder_eq.c
	+++ head/sys/dev/sound/pcm/feeder_eq.c
	@@ -684,8 +684,8 @@

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "eq", CTLTYPE_INT \| CTLFLAG_RWTUN, d, sizeof(d),
	- sysctl_dev_pcm_eq, "I",
	+ "eq", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_MPSAFE, d,
	+ sizeof(d), sysctl_dev_pcm_eq, "I",
	"Bass/Treble Equalizer (0=disable, 1=enable, 2=bypass)");

	(void)snprintf(buf, sizeof(buf), "Bass/Treble Equalizer Preamp "
	@@ -696,7 +696,7 @@

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "eq_preamp", CTLTYPE_STRING \| CTLFLAG_RWTUN, d, sizeof(d),
	- sysctl_dev_pcm_eq_preamp, "A", buf);
	+ "eq_preamp", CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_MPSAFE,
	+ d, sizeof(d), sysctl_dev_pcm_eq_preamp, "A", buf);
	}
	#endif
	Index: head/sys/dev/sound/pcm/feeder_rate.c
	===================================================================
	--- head/sys/dev/sound/pcm/feeder_rate.c
	+++ head/sys/dev/sound/pcm/feeder_rate.c
	@@ -185,8 +185,9 @@

	return (0);
	}
	-SYSCTL_PROC(_hw_snd, OID_AUTO, feeder_rate_min, CTLTYPE_INT \| CTLFLAG_RWTUN,
	- 0, sizeof(int), sysctl_hw_snd_feeder_rate_min, "I",
	+SYSCTL_PROC(_hw_snd, OID_AUTO, feeder_rate_min,
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_hw_snd_feeder_rate_min, "I",
	"minimum allowable rate");

	static int
	@@ -207,8 +208,9 @@

	return (0);
	}
	-SYSCTL_PROC(_hw_snd, OID_AUTO, feeder_rate_max, CTLTYPE_INT \| CTLFLAG_RWTUN,
	- 0, sizeof(int), sysctl_hw_snd_feeder_rate_max, "I",
	+SYSCTL_PROC(_hw_snd, OID_AUTO, feeder_rate_max,
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_hw_snd_feeder_rate_max, "I",
	"maximum allowable rate");

	static int
	@@ -229,8 +231,9 @@

	return (0);
	}
	-SYSCTL_PROC(_hw_snd, OID_AUTO, feeder_rate_round, CTLTYPE_INT \| CTLFLAG_RWTUN,
	- 0, sizeof(int), sysctl_hw_snd_feeder_rate_round, "I",
	+SYSCTL_PROC(_hw_snd, OID_AUTO, feeder_rate_round,
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_hw_snd_feeder_rate_round, "I",
	"sample rate converter rounding threshold");

	static int
	@@ -281,8 +284,9 @@

	return (0);
	}
	-SYSCTL_PROC(_hw_snd, OID_AUTO, feeder_rate_quality, CTLTYPE_INT \| CTLFLAG_RWTUN,
	- 0, sizeof(int), sysctl_hw_snd_feeder_rate_quality, "I",
	+SYSCTL_PROC(_hw_snd, OID_AUTO, feeder_rate_quality,
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_hw_snd_feeder_rate_quality, "I",
	"sample rate converter quality ("__XSTRING(Z_QUALITY_MIN)"=low .. "
	__XSTRING(Z_QUALITY_MAX)"=high)");
	#endif /* _KERNEL */
	Index: head/sys/dev/sound/pcm/mixer.c
	===================================================================
	--- head/sys/dev/sound/pcm/mixer.c
	+++ head/sys/dev/sound/pcm/mixer.c
	@@ -888,9 +888,9 @@
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	OID_AUTO, "hwvol_step", CTLFLAG_RWTUN, &m->hwvol_step, 0, "");
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	- SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "hwvol_mixer", CTLTYPE_STRING \| CTLFLAG_RWTUN, m, 0,
	- sysctl_hw_snd_hwvol_mixer, "A", "");
	+ SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	+ "hwvol_mixer", CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_MPSAFE,
	+ m, 0, sysctl_hw_snd_hwvol_mixer, "A", "");
	return 0;
	}

	Index: head/sys/dev/sound/pcm/sndstat.c
	===================================================================
	--- head/sys/dev/sound/pcm/sndstat.c
	+++ head/sys/dev/sound/pcm/sndstat.c
	@@ -100,8 +100,10 @@
	}
	return (error);
	}
	-SYSCTL_PROC(_hw_snd, OID_AUTO, verbose, CTLTYPE_INT \| CTLFLAG_RWTUN,
	- 0, sizeof(int), sysctl_hw_sndverbose, "I", "verbosity level");
	+SYSCTL_PROC(_hw_snd, OID_AUTO, verbose,
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_hw_sndverbose, "I",
	+ "verbosity level");

	static int
	sndstat_open(struct cdev i_dev, int flags, int mode, struct thread td)
	Index: head/sys/dev/sound/pcm/sound.c
	===================================================================
	--- head/sys/dev/sound/pcm/sound.c
	+++ head/sys/dev/sound/pcm/sound.c
	@@ -58,7 +58,8 @@

	int snd_maxautovchans = 16;

	-SYSCTL_NODE(_hw, OID_AUTO, snd, CTLFLAG_RD, 0, "Sound driver");
	+SYSCTL_NODE(_hw, OID_AUTO, snd, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Sound driver");

	static void pcm_sysinit(device_t);

	@@ -443,9 +444,9 @@
	}
	/* XXX: do we need a way to let the user change the default unit? */
	SYSCTL_PROC(_hw_snd, OID_AUTO, default_unit,
	- CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_ANYBODY,
	- 0, sizeof(int), sysctl_hw_snd_default_unit, "I",
	- "default sound device");
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_ANYBODY \| CTLFLAG_NEEDGIANT, 0,
	+ sizeof(int), sysctl_hw_snd_default_unit, "I",
	+ "default sound device");

	static int
	sysctl_hw_snd_maxautovchans(SYSCTL_HANDLER_ARGS)
	@@ -473,8 +474,10 @@
	}
	return (error);
	}
	-SYSCTL_PROC(_hw_snd, OID_AUTO, maxautovchans, CTLTYPE_INT \| CTLFLAG_RWTUN,
	- 0, sizeof(int), sysctl_hw_snd_maxautovchans, "I", "maximum virtual channel");
	+SYSCTL_PROC(_hw_snd, OID_AUTO, maxautovchans,
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_hw_snd_maxautovchans, "I",
	+ "maximum virtual channel");

	struct pcm_channel *
	pcm_chn_create(struct snddev_info d, struct pcm_channel parent, kobj_class_t cls, int dir, int num, void *devinfo)
	@@ -1007,8 +1010,9 @@

	return (err);
	}
	-SYSCTL_PROC(_hw_snd, OID_AUTO, clone_gc, CTLTYPE_INT \| CTLFLAG_RWTUN,
	- 0, sizeof(int), sysctl_hw_snd_clone_gc, "I",
	+SYSCTL_PROC(_hw_snd, OID_AUTO, clone_gc,
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_hw_snd_clone_gc, "I",
	"global clone garbage collector");
	#endif

	@@ -1024,25 +1028,25 @@
	OID_AUTO, "buffersize", CTLFLAG_RD, &d->bufsz, 0, "allocated buffer size");
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "bitperfect", CTLTYPE_INT \| CTLFLAG_RWTUN, d, sizeof(d),
	- sysctl_dev_pcm_bitperfect, "I",
	+ "bitperfect", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, d,
	+ sizeof(d), sysctl_dev_pcm_bitperfect, "I",
	"bit-perfect playback/recording (0=disable, 1=enable)");
	#ifdef SND_DEBUG
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "clone_flags", CTLTYPE_UINT \| CTLFLAG_RWTUN, d, sizeof(d),
	- sysctl_dev_pcm_clone_flags, "IU",
	+ "clone_flags", CTLTYPE_UINT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT,
	+ d, sizeof(d), sysctl_dev_pcm_clone_flags, "IU",
	"clone flags");
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "clone_deadline", CTLTYPE_INT \| CTLFLAG_RWTUN, d, sizeof(d),
	- sysctl_dev_pcm_clone_deadline, "I",
	+ "clone_deadline", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT,
	+ d, sizeof(d), sysctl_dev_pcm_clone_deadline, "I",
	"clone expiration deadline (ms)");
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "clone_gc", CTLTYPE_INT \| CTLFLAG_RWTUN, d, sizeof(d),
	- sysctl_dev_pcm_clone_gc, "I",
	- "clone garbage collector");
	+ "clone_gc",
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, d, sizeof(d),
	+ sysctl_dev_pcm_clone_gc, "I", "clone garbage collector");
	#endif
	if (d->flags & SD_F_AUTOVCHAN)
	vchan_initsys(dev);
	@@ -1126,11 +1130,11 @@
	sysctl_ctx_init(&d->play_sysctl_ctx);
	d->play_sysctl_tree = SYSCTL_ADD_NODE(&d->play_sysctl_ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "play",
	- CTLFLAG_RD, 0, "playback channels node");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "playback channels node");
	sysctl_ctx_init(&d->rec_sysctl_ctx);
	d->rec_sysctl_tree = SYSCTL_ADD_NODE(&d->rec_sysctl_ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "rec",
	- CTLFLAG_RD, 0, "record channels node");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "record channels node");

	if (numplay > 0 \|\| numrec > 0)
	d->flags \|= SD_F_AUTOVCHAN;
	Index: head/sys/dev/sound/pcm/vchan.c
	===================================================================
	--- head/sys/dev/sound/pcm/vchan.c
	+++ head/sys/dev/sound/pcm/vchan.c
	@@ -948,45 +948,52 @@
	/* Play */
	SYSCTL_ADD_PROC(&d->play_sysctl_ctx,
	SYSCTL_CHILDREN(d->play_sysctl_tree),
	- OID_AUTO, "vchans", CTLTYPE_INT \| CTLFLAG_RWTUN,
	+ OID_AUTO, "vchans", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_MPSAFE,
	VCHAN_SYSCTL_DATA(unit, PLAY), VCHAN_SYSCTL_DATA_SIZE,
	sysctl_dev_pcm_vchans, "I", "total allocated virtual channel");
	SYSCTL_ADD_PROC(&d->play_sysctl_ctx,
	SYSCTL_CHILDREN(d->play_sysctl_tree),
	- OID_AUTO, "vchanmode", CTLTYPE_STRING \| CTLFLAG_RWTUN,
	+ OID_AUTO, "vchanmode",
	+ CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_MPSAFE,
	VCHAN_SYSCTL_DATA(unit, PLAY), VCHAN_SYSCTL_DATA_SIZE,
	sysctl_dev_pcm_vchanmode, "A",
	"vchan format/rate selection: 0=fixed, 1=passthrough, 2=adaptive");
	SYSCTL_ADD_PROC(&d->play_sysctl_ctx,
	SYSCTL_CHILDREN(d->play_sysctl_tree),
	- OID_AUTO, "vchanrate", CTLTYPE_INT \| CTLFLAG_RWTUN,
	+ OID_AUTO, "vchanrate",
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_MPSAFE,
	VCHAN_SYSCTL_DATA(unit, PLAY), VCHAN_SYSCTL_DATA_SIZE,
	sysctl_dev_pcm_vchanrate, "I", "virtual channel mixing speed/rate");
	SYSCTL_ADD_PROC(&d->play_sysctl_ctx,
	SYSCTL_CHILDREN(d->play_sysctl_tree),
	- OID_AUTO, "vchanformat", CTLTYPE_STRING \| CTLFLAG_RWTUN,
	+ OID_AUTO, "vchanformat",
	+ CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_MPSAFE,
	VCHAN_SYSCTL_DATA(unit, PLAY), VCHAN_SYSCTL_DATA_SIZE,
	sysctl_dev_pcm_vchanformat, "A", "virtual channel mixing format");
	/* Rec */
	SYSCTL_ADD_PROC(&d->rec_sysctl_ctx,
	SYSCTL_CHILDREN(d->rec_sysctl_tree),
	- OID_AUTO, "vchans", CTLTYPE_INT \| CTLFLAG_RWTUN,
	+ OID_AUTO, "vchans",
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_MPSAFE,
	VCHAN_SYSCTL_DATA(unit, REC), VCHAN_SYSCTL_DATA_SIZE,
	sysctl_dev_pcm_vchans, "I", "total allocated virtual channel");
	SYSCTL_ADD_PROC(&d->rec_sysctl_ctx,
	SYSCTL_CHILDREN(d->rec_sysctl_tree),
	- OID_AUTO, "vchanmode", CTLTYPE_STRING \| CTLFLAG_RWTUN,
	+ OID_AUTO, "vchanmode",
	+ CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_MPSAFE,
	VCHAN_SYSCTL_DATA(unit, REC), VCHAN_SYSCTL_DATA_SIZE,
	sysctl_dev_pcm_vchanmode, "A",
	"vchan format/rate selection: 0=fixed, 1=passthrough, 2=adaptive");
	SYSCTL_ADD_PROC(&d->rec_sysctl_ctx,
	SYSCTL_CHILDREN(d->rec_sysctl_tree),
	- OID_AUTO, "vchanrate", CTLTYPE_INT \| CTLFLAG_RWTUN,
	+ OID_AUTO, "vchanrate",
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_MPSAFE,
	VCHAN_SYSCTL_DATA(unit, REC), VCHAN_SYSCTL_DATA_SIZE,
	sysctl_dev_pcm_vchanrate, "I", "virtual channel mixing speed/rate");
	SYSCTL_ADD_PROC(&d->rec_sysctl_ctx,
	SYSCTL_CHILDREN(d->rec_sysctl_tree),
	- OID_AUTO, "vchanformat", CTLTYPE_STRING \| CTLFLAG_RWTUN,
	+ OID_AUTO, "vchanformat",
	+ CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_MPSAFE,
	VCHAN_SYSCTL_DATA(unit, REC), VCHAN_SYSCTL_DATA_SIZE,
	sysctl_dev_pcm_vchanformat, "A", "virtual channel mixing format");
	}
	Index: head/sys/dev/ste/if_ste.c
	===================================================================
	--- head/sys/dev/ste/if_ste.c
	+++ head/sys/dev/ste/if_ste.c
	@@ -2053,13 +2053,13 @@
	resource_int_value(device_get_name(sc->ste_dev),
	device_get_unit(sc->ste_dev), "int_rx_mod", &sc->ste_int_rx_mod);

	- tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "STE statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "STE statistics");
	parent = SYSCTL_CHILDREN(tree);

	/* Rx statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx", CTLFLAG_RD,
	- NULL, "Rx MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Rx MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	STE_SYSCTL_STAT_ADD64(ctx, child, "good_octets",
	&stats->rx_bytes, "Good octets");
	@@ -2073,8 +2073,8 @@
	&stats->rx_lost_frames, "Lost frames");

	/* Tx statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx", CTLFLAG_RD,
	- NULL, "Tx MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Tx MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	STE_SYSCTL_STAT_ADD64(ctx, child, "good_octets",
	&stats->tx_bytes, "Good octets");
	Index: head/sys/dev/stge/if_stge.c
	===================================================================
	--- head/sys/dev/stge/if_stge.c
	+++ head/sys/dev/stge/if_stge.c
	@@ -476,13 +476,15 @@

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "rxint_nframe", CTLTYPE_INT\|CTLFLAG_RW, &sc->sc_rxint_nframe, 0,
	- sysctl_hw_stge_rxint_nframe, "I", "stge rx interrupt nframe");
	+ "rxint_nframe", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &sc->sc_rxint_nframe, 0, sysctl_hw_stge_rxint_nframe, "I",
	+ "stge rx interrupt nframe");

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "rxint_dmawait", CTLTYPE_INT\|CTLFLAG_RW, &sc->sc_rxint_dmawait, 0,
	- sysctl_hw_stge_rxint_dmawait, "I", "stge rx interrupt dmawait");
	+ "rxint_dmawait", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &sc->sc_rxint_dmawait, 0, sysctl_hw_stge_rxint_dmawait, "I",
	+ "stge rx interrupt dmawait");

	/* Pull in device tunables. */
	sc->sc_rxint_nframe = STGE_RXINT_NFRAME_DEFAULT;
	Index: head/sys/dev/syscons/syscons.c
	===================================================================
	--- head/sys/dev/syscons/syscons.c
	+++ head/sys/dev/syscons/syscons.c
	@@ -146,8 +146,11 @@
	#endif
	static int sc_susp_scr;

	-static SYSCTL_NODE(_hw, OID_AUTO, syscons, CTLFLAG_RD, 0, "syscons");
	-static SYSCTL_NODE(_hw_syscons, OID_AUTO, saver, CTLFLAG_RD, 0, "saver");
	+static SYSCTL_NODE(_hw, OID_AUTO, syscons, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "syscons");
	+static SYSCTL_NODE(_hw_syscons, OID_AUTO, saver,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "saver");
	SYSCTL_INT(_hw_syscons_saver, OID_AUTO, keybonly, CTLFLAG_RW,
	&sc_saver_keyb_only, 0, "screen saver interrupted by input only");
	SYSCTL_INT(
	Index: head/sys/dev/tsec/if_tsec.c
	===================================================================
	--- head/sys/dev/tsec/if_tsec.c
	+++ head/sys/dev/tsec/if_tsec.c
	@@ -1680,22 +1680,22 @@
	ctx = device_get_sysctl_ctx(sc->dev);
	children = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev));
	tree = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "int_coal",
	- CTLFLAG_RD, 0, "TSEC Interrupts coalescing");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "TSEC Interrupts coalescing");
	children = SYSCTL_CHILDREN(tree);

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rx_time",
	- CTLTYPE_UINT \| CTLFLAG_RW, sc, TSEC_IC_RX, tsec_sysctl_ic_time,
	- "I", "IC RX time threshold (0-65535)");
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, sc, TSEC_IC_RX,
	+ tsec_sysctl_ic_time, "I", "IC RX time threshold (0-65535)");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rx_count",
	- CTLTYPE_UINT \| CTLFLAG_RW, sc, TSEC_IC_RX, tsec_sysctl_ic_count,
	- "I", "IC RX frame count threshold (0-255)");
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, sc, TSEC_IC_RX,
	+ tsec_sysctl_ic_count, "I", "IC RX frame count threshold (0-255)");

	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tx_time",
	- CTLTYPE_UINT \| CTLFLAG_RW, sc, TSEC_IC_TX, tsec_sysctl_ic_time,
	- "I", "IC TX time threshold (0-65535)");
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, sc, TSEC_IC_TX,
	+ tsec_sysctl_ic_time, "I", "IC TX time threshold (0-65535)");
	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tx_count",
	- CTLTYPE_UINT \| CTLFLAG_RW, sc, TSEC_IC_TX, tsec_sysctl_ic_count,
	- "I", "IC TX frame count threshold (0-255)");
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, sc, TSEC_IC_TX,
	+ tsec_sysctl_ic_count, "I", "IC TX frame count threshold (0-255)");
	}

	/*
	Index: head/sys/dev/twa/tw_osl_freebsd.c
	===================================================================
	--- head/sys/dev/twa/tw_osl_freebsd.c
	+++ head/sys/dev/twa/tw_osl_freebsd.c
	@@ -309,8 +309,8 @@

	sysctl_ctx_init(&sc->sysctl_ctxt);
	sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctxt,
	- SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
	- device_get_nameunit(dev), CTLFLAG_RD, 0, "");
	+ SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO, device_get_nameunit(dev),
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");
	if (sc->sysctl_tree == NULL) {
	tw_osli_printf(sc, "error = %d",
	TW_CL_SEVERITY_ERROR_STRING,
	Index: head/sys/dev/twe/twe_freebsd.c
	===================================================================
	--- head/sys/dev/twe/twe_freebsd.c
	+++ head/sys/dev/twe/twe_freebsd.c
	@@ -202,7 +202,7 @@
	*/
	sysctl_tree = SYSCTL_ADD_NODE(device_get_sysctl_ctx(dev),
	SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
	- device_get_nameunit(dev), CTLFLAG_RD, 0, "");
	+ device_get_nameunit(dev), CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");
	if (sysctl_tree == NULL) {
	twe_printf(sc, "cannot add sysctl tree node\n");
	return (ENXIO);
	Index: head/sys/dev/tws/tws.c
	===================================================================
	--- head/sys/dev/tws/tws.c
	+++ head/sys/dev/tws/tws.c
	@@ -216,9 +216,8 @@
	/* sysctl context setup */
	sysctl_ctx_init(&sc->tws_clist);
	sc->tws_oidp = SYSCTL_ADD_NODE(&sc->tws_clist,
	- SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
	- device_get_nameunit(dev),
	- CTLFLAG_RD, 0, "");
	+ SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
	+ device_get_nameunit(dev), CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");
	if ( sc->tws_oidp == NULL ) {
	tws_log(sc, SYSCTL_TREE_NODE_ADD);
	goto attach_fail_1;
	Index: head/sys/dev/uart/uart_core.c
	===================================================================
	--- head/sys/dev/uart/uart_core.c
	+++ head/sys/dev/uart/uart_core.c
	@@ -209,8 +209,8 @@
	#endif
	TUNABLE_INT_FETCH("hw.uart.pps_mode", &sc->sc_pps_mode);
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "pps_mode",
	- CTLTYPE_INT \| CTLFLAG_RWTUN, sc, 0, uart_pps_mode_sysctl, "I",
	- "pulse mode: 0/1/2=disabled/CTS/DCD; "
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, sc, 0,
	+ uart_pps_mode_sysctl, "I", "pulse mode: 0/1/2=disabled/CTS/DCD; "
	"add 0x10 to invert, 0x20 for narrow pulse");

	if (!uart_pps_mode_valid(sc->sc_pps_mode)) {
	Index: head/sys/dev/ubsec/ubsec.c
	===================================================================
	--- head/sys/dev/ubsec/ubsec.c
	+++ head/sys/dev/ubsec/ubsec.c
	@@ -173,7 +173,7 @@
	static void ubsec_kshift_r(u_int, u_int8_t , u_int, u_int8_t , u_int);
	static void ubsec_kshift_l(u_int, u_int8_t , u_int, u_int8_t , u_int);

	-static SYSCTL_NODE(_hw, OID_AUTO, ubsec, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_hw, OID_AUTO, ubsec, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Broadcom driver parameters");

	#ifdef UBSEC_DEBUG
	Index: head/sys/dev/vge/if_vge.c
	===================================================================
	--- head/sys/dev/vge/if_vge.c
	+++ head/sys/dev/vge/if_vge.c
	@@ -2532,13 +2532,13 @@
	resource_int_value(device_get_name(sc->vge_dev),
	device_get_unit(sc->vge_dev), "tx_coal_pkt", &sc->vge_tx_coal_pkt);

	- tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "VGE statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "VGE statistics");
	parent = SYSCTL_CHILDREN(tree);

	/* Rx statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx", CTLFLAG_RD,
	- NULL, "RX MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "RX MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	VGE_SYSCTL_STAT_ADD32(ctx, child, "frames",
	&stats->rx_frames, "frames");
	@@ -2582,8 +2582,8 @@
	&stats->rx_lenerrs, "Frames with length mismatched");

	/* Tx statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx", CTLFLAG_RD,
	- NULL, "TX MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "TX MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	VGE_SYSCTL_STAT_ADD32(ctx, child, "good_frames",
	&stats->tx_good_frames, "Good frames");
	Index: head/sys/dev/virtio/block/virtio_blk.c
	===================================================================
	--- head/sys/dev/virtio/block/virtio_blk.c
	+++ head/sys/dev/virtio/block/virtio_blk.c
	@@ -1392,8 +1392,9 @@
	child = SYSCTL_CHILDREN(tree);

	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "writecache_mode",
	- CTLTYPE_INT \| CTLFLAG_RW, sc, 0, vtblk_write_cache_sysctl,
	- "I", "Write cache mode (writethrough (0) or writeback (1))");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, sc, 0,
	+ vtblk_write_cache_sysctl, "I",
	+ "Write cache mode (writethrough (0) or writeback (1))");
	}

	static int
	Index: head/sys/dev/virtio/network/if_vtnet.c
	===================================================================
	--- head/sys/dev/virtio/network/if_vtnet.c
	+++ head/sys/dev/virtio/network/if_vtnet.c
	@@ -234,7 +234,8 @@
	DEBUGNET_DEFINE(vtnet);

	/* Tunables. */
	-static SYSCTL_NODE(_hw, OID_AUTO, vtnet, CTLFLAG_RD, 0, "VNET driver parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, vtnet, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "VNET driver parameters");
	static int vtnet_csum_disable = 0;
	TUNABLE_INT("hw.vtnet.csum_disable", &vtnet_csum_disable);
	SYSCTL_INT(_hw_vtnet, OID_AUTO, csum_disable, CTLFLAG_RDTUN,
	@@ -3751,7 +3752,7 @@

	snprintf(namebuf, sizeof(namebuf), "rxq%d", rxq->vtnrx_id);
	node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf,
	- CTLFLAG_RD, NULL, "Receive Queue");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Receive Queue");
	list = SYSCTL_CHILDREN(node);

	stats = &rxq->vtnrx_stats;
	@@ -3784,7 +3785,7 @@

	snprintf(namebuf, sizeof(namebuf), "txq%d", txq->vtntx_id);
	node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf,
	- CTLFLAG_RD, NULL, "Transmit Queue");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Transmit Queue");
	list = SYSCTL_CHILDREN(node);

	stats = &txq->vtntx_stats;
	Index: head/sys/dev/vmware/pvscsi/pvscsi.c
	===================================================================
	--- head/sys/dev/vmware/pvscsi/pvscsi.c
	+++ head/sys/dev/vmware/pvscsi/pvscsi.c
	@@ -130,7 +130,7 @@

	#ifdef PVSCSI_DEBUG_LOGGING
	static int pvscsi_log_level = 0;
	-static SYSCTL_NODE(_hw, OID_AUTO, pvscsi, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_hw, OID_AUTO, pvscsi, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"PVSCSI driver parameters");
	SYSCTL_INT(_hw_pvscsi, OID_AUTO, log_level, CTLFLAG_RWTUN, &pvscsi_log_level,
	0, "PVSCSI debug log level");
	Index: head/sys/dev/vmware/vmxnet3/if_vmx.c
	===================================================================
	--- head/sys/dev/vmware/vmxnet3/if_vmx.c
	+++ head/sys/dev/vmware/vmxnet3/if_vmx.c
	@@ -2168,16 +2168,16 @@
	txstats = &txq->vxtxq_ts->stats;

	snprintf(namebuf, sizeof(namebuf), "txq%d", txq->vxtxq_id);
	- node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf, CTLFLAG_RD,
	- NULL, "Transmit Queue");
	+ node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Transmit Queue");
	txq->vxtxq_sysctl = list = SYSCTL_CHILDREN(node);

	/*
	* Add statistics reported by the host. These are updated by the
	* iflib txq timer on txq 0.
	*/
	- txsnode = SYSCTL_ADD_NODE(ctx, list, OID_AUTO, "hstats", CTLFLAG_RD,
	- NULL, "Host Statistics");
	+ txsnode = SYSCTL_ADD_NODE(ctx, list, OID_AUTO, "hstats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Host Statistics");
	txslist = SYSCTL_CHILDREN(txsnode);
	SYSCTL_ADD_UQUAD(ctx, txslist, OID_AUTO, "tso_packets", CTLFLAG_RD,
	&txstats->TSO_packets, "TSO packets");
	@@ -2209,16 +2209,16 @@
	rxstats = &rxq->vxrxq_rs->stats;

	snprintf(namebuf, sizeof(namebuf), "rxq%d", rxq->vxrxq_id);
	- node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf, CTLFLAG_RD,
	- NULL, "Receive Queue");
	+ node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Receive Queue");
	rxq->vxrxq_sysctl = list = SYSCTL_CHILDREN(node);

	/*
	* Add statistics reported by the host. These are updated by the
	* iflib txq timer on txq 0.
	*/
	- rxsnode = SYSCTL_ADD_NODE(ctx, list, OID_AUTO, "hstats", CTLFLAG_RD,
	- NULL, "Host Statistics");
	+ rxsnode = SYSCTL_ADD_NODE(ctx, list, OID_AUTO, "hstats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Host Statistics");
	rxslist = SYSCTL_CHILDREN(rxsnode);
	SYSCTL_ADD_UQUAD(ctx, rxslist, OID_AUTO, "lro_packets", CTLFLAG_RD,
	&rxstats->LRO_packets, "LRO packets");
	@@ -2257,7 +2257,7 @@
	struct vmxnet3_txqueue *txq = &sc->vmx_txq[i];

	node = SYSCTL_ADD_NODE(ctx, txq->vxtxq_sysctl, OID_AUTO,
	- "debug", CTLFLAG_RD, NULL, "");
	+ "debug", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	list = SYSCTL_CHILDREN(node);

	SYSCTL_ADD_UINT(ctx, list, OID_AUTO, "cmd_next", CTLFLAG_RD,
	@@ -2278,7 +2278,7 @@
	struct vmxnet3_rxqueue *rxq = &sc->vmx_rxq[i];

	node = SYSCTL_ADD_NODE(ctx, rxq->vxrxq_sysctl, OID_AUTO,
	- "debug", CTLFLAG_RD, NULL, "");
	+ "debug", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	list = SYSCTL_CHILDREN(node);

	SYSCTL_ADD_UINT(ctx, list, OID_AUTO, "cmd0_ndesc", CTLFLAG_RD,
	Index: head/sys/dev/vr/if_vr.c
	===================================================================
	--- head/sys/dev/vr/if_vr.c
	+++ head/sys/dev/vr/if_vr.c
	@@ -626,8 +626,8 @@
	callout_init_mtx(&sc->vr_stat_callout, &sc->vr_mtx, 0);
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "stats", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	- vr_sysctl_stats, "I", "Statistics");
	+ OID_AUTO, "stats", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ sc, 0, vr_sysctl_stats, "I", "Statistics");

	error = 0;

	Index: head/sys/dev/vt/vt_core.c
	===================================================================
	--- head/sys/dev/vt/vt_core.c
	+++ head/sys/dev/vt/vt_core.c
	@@ -120,7 +120,8 @@
	#define VT_UNIT(vw) ((vw)->vw_device->vd_unit * VT_MAXWINDOWS + \
	(vw)->vw_number)

	-static SYSCTL_NODE(_kern, OID_AUTO, vt, CTLFLAG_RD, 0, "vt(9) parameters");
	+static SYSCTL_NODE(_kern, OID_AUTO, vt, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "vt(9) parameters");
	static VT_SYSCTL_INT(enable_altgr, 1, "Enable AltGr key (Do not assume R.Alt as Alt)");
	static VT_SYSCTL_INT(enable_bell, 1, "Enable bell");
	static VT_SYSCTL_INT(debug, 0, "vt(9) debug level");
	Index: head/sys/dev/vte/if_vte.c
	===================================================================
	--- head/sys/dev/vte/if_vte.c
	+++ head/sys/dev/vte/if_vte.c
	@@ -564,11 +564,13 @@
	child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->vte_dev));

	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "int_rx_mod",
	- CTLTYPE_INT \| CTLFLAG_RW, &sc->vte_int_rx_mod, 0,
	- sysctl_hw_vte_int_mod, "I", "vte RX interrupt moderation");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &sc->vte_int_rx_mod, 0, sysctl_hw_vte_int_mod, "I",
	+ "vte RX interrupt moderation");
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "int_tx_mod",
	- CTLTYPE_INT \| CTLFLAG_RW, &sc->vte_int_tx_mod, 0,
	- sysctl_hw_vte_int_mod, "I", "vte TX interrupt moderation");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &sc->vte_int_tx_mod, 0, sysctl_hw_vte_int_mod, "I",
	+ "vte TX interrupt moderation");
	/* Pull in device tunables. */
	sc->vte_int_rx_mod = VTE_IM_RX_BUNDLE_DEFAULT;
	error = resource_int_value(device_get_name(sc->vte_dev),
	@@ -596,13 +598,13 @@
	}
	}

	- tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
	- NULL, "VTE statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "VTE statistics");
	parent = SYSCTL_CHILDREN(tree);

	/* RX statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx", CTLFLAG_RD,
	- NULL, "RX MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "RX MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	VTE_SYSCTL_STAT_ADD32(ctx, child, "good_frames",
	&stats->rx_frames, "Good frames");
	@@ -625,8 +627,8 @@
	&stats->rx_pause_frames, "Pause control frames");

	/* TX statistics. */
	- tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx", CTLFLAG_RD,
	- NULL, "TX MAC statistics");
	+ tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "TX MAC statistics");
	child = SYSCTL_CHILDREN(tree);
	VTE_SYSCTL_STAT_ADD32(ctx, child, "good_frames",
	&stats->tx_frames, "Good frames");
	Index: head/sys/dev/watchdog/watchdog.c
	===================================================================
	--- head/sys/dev/watchdog/watchdog.c
	+++ head/sys/dev/watchdog/watchdog.c
	@@ -70,7 +70,8 @@
	static u_int wd_last_u_sysctl; /* last timeout value set by kern_do_pat */
	static u_int wd_last_u_sysctl_secs; /* wd_last_u in seconds */

	-SYSCTL_NODE(_hw, OID_AUTO, watchdog, CTLFLAG_RD, 0, "Main watchdog device");
	+SYSCTL_NODE(_hw, OID_AUTO, watchdog, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Main watchdog device");
	SYSCTL_UINT(_hw_watchdog, OID_AUTO, wd_last_u, CTLFLAG_RD,
	&wd_last_u_sysctl, 0, "Watchdog last update time");
	SYSCTL_UINT(_hw_watchdog, OID_AUTO, wd_last_u_secs, CTLFLAG_RD,
	Index: head/sys/dev/wbwd/wbwd.c
	===================================================================
	--- head/sys/dev/wbwd/wbwd.c
	+++ head/sys/dev/wbwd/wbwd.c
	@@ -628,14 +628,15 @@
	"debug_verbose", CTLFLAG_RW, &sc->debug_verbose, 0,
	"Enables extra debugging information");
	SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "debug",
	- CTLTYPE_STRING\|CTLFLAG_RD, sc, 0, sysctl_wb_debug, "A",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	+ sysctl_wb_debug, "A",
	"Selected register information from last change by driver");
	SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "debug_current",
	- CTLTYPE_STRING\|CTLFLAG_RD\|CTLFLAG_SKIP, sc, 0,
	- sysctl_wb_debug_current, "A",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_SKIP \| CTLFLAG_NEEDGIANT,
	+ sc, 0, sysctl_wb_debug_current, "A",
	"Selected register information (may interfere)");
	SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "force_timeout",
	- CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_SKIP, sc, 0,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SKIP \| CTLFLAG_NEEDGIANT, sc, 0,
	sysctl_wb_force_test_nmi, "I", "Enable to force watchdog to fire.");

	/* Register watchdog. */
	Index: head/sys/dev/wi/if_wi.c
	===================================================================
	--- head/sys/dev/wi/if_wi.c
	+++ head/sys/dev/wi/if_wi.c
	@@ -171,8 +171,8 @@
	return wi_write_rid(sc, rid, &val, sizeof(val));
	}

	-static SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0,
	- "Wireless driver parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Wireless driver parameters");

	static struct timeval lasttxerror; /* time of last tx error msg */
	static int curtxeps; /* current tx error msgs/sec */
	Index: head/sys/fs/cd9660/cd9660_vnops.c
	===================================================================
	--- head/sys/fs/cd9660/cd9660_vnops.c
	+++ head/sys/fs/cd9660/cd9660_vnops.c
	@@ -844,7 +844,8 @@
	return (0);
	}

	-SYSCTL_NODE(_vfs, OID_AUTO, cd9660, CTLFLAG_RW, 0, "cd9660 filesystem");
	+SYSCTL_NODE(_vfs, OID_AUTO, cd9660, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "cd9660 filesystem");
	static int use_buf_pager = 1;
	SYSCTL_INT(_vfs_cd9660, OID_AUTO, use_buf_pager, CTLFLAG_RWTUN,
	&use_buf_pager, 0,
	Index: head/sys/fs/devfs/devfs_devs.c
	===================================================================
	--- head/sys/fs/devfs/devfs_devs.c
	+++ head/sys/fs/devfs/devfs_devs.c
	@@ -63,7 +63,8 @@
	static MALLOC_DEFINE(M_DEVFS3, "DEVFS3", "DEVFS data 3");
	static MALLOC_DEFINE(M_CDEVP, "DEVFS1", "DEVFS cdev_priv storage");

	-SYSCTL_NODE(_vfs, OID_AUTO, devfs, CTLFLAG_RW, 0, "DEVFS filesystem");
	+SYSCTL_NODE(_vfs, OID_AUTO, devfs, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "DEVFS filesystem");

	static unsigned devfs_generation;
	SYSCTL_UINT(_vfs_devfs, OID_AUTO, generation, CTLFLAG_RD,
	Index: head/sys/fs/ext2fs/ext2_alloc.c
	===================================================================
	--- head/sys/fs/ext2fs/ext2_alloc.c
	+++ head/sys/fs/ext2fs/ext2_alloc.c
	@@ -187,7 +187,8 @@
	* the previous block allocation will be used.
	*/

	-static SYSCTL_NODE(_vfs, OID_AUTO, ext2fs, CTLFLAG_RW, 0, "EXT2FS filesystem");
	+static SYSCTL_NODE(_vfs, OID_AUTO, ext2fs, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "EXT2FS filesystem");

	static int doasyncfree = 1;

	Index: head/sys/fs/ext2fs/ext2_lookup.c
	===================================================================
	--- head/sys/fs/ext2fs/ext2_lookup.c
	+++ head/sys/fs/ext2fs/ext2_lookup.c
	@@ -85,7 +85,8 @@
	static int dirchk = 0;
	#endif

	-static SYSCTL_NODE(_vfs, OID_AUTO, e2fs, CTLFLAG_RD, 0, "EXT2FS filesystem");
	+static SYSCTL_NODE(_vfs, OID_AUTO, e2fs, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "EXT2FS filesystem");
	SYSCTL_INT(_vfs_e2fs, OID_AUTO, dircheck, CTLFLAG_RW, &dirchk, 0, "");

	/*
	Index: head/sys/fs/msdosfs/msdosfs_vnops.c
	===================================================================
	--- head/sys/fs/msdosfs/msdosfs_vnops.c
	+++ head/sys/fs/msdosfs/msdosfs_vnops.c
	@@ -1803,7 +1803,8 @@
	return (0);
	}

	-SYSCTL_NODE(_vfs, OID_AUTO, msdosfs, CTLFLAG_RW, 0, "msdos filesystem");
	+SYSCTL_NODE(_vfs, OID_AUTO, msdosfs, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "msdos filesystem");
	static int use_buf_pager = 1;
	SYSCTL_INT(_vfs_msdosfs, OID_AUTO, use_buf_pager, CTLFLAG_RWTUN,
	&use_buf_pager, 0,
	Index: head/sys/fs/nfs/nfs_commonport.c
	===================================================================
	--- head/sys/fs/nfs/nfs_commonport.c
	+++ head/sys/fs/nfs/nfs_commonport.c
	@@ -82,7 +82,8 @@
	static struct ext_nfsstats oldnfsstats;
	static struct nfsstatsov1 nfsstatsov1;

	-SYSCTL_NODE(_vfs, OID_AUTO, nfs, CTLFLAG_RW, 0, "NFS filesystem");
	+SYSCTL_NODE(_vfs, OID_AUTO, nfs, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "NFS filesystem");
	SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_test, CTLFLAG_RW, &nfs_realign_test,
	0, "Number of realign tests done");
	SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_count, CTLFLAG_RW, &nfs_realign_count,
	Index: head/sys/fs/nfsclient/nfs_clnfsiod.c
	===================================================================
	--- head/sys/fs/nfsclient/nfs_clnfsiod.c
	+++ head/sys/fs/nfsclient/nfs_clnfsiod.c
	@@ -124,8 +124,9 @@
	NFSUNLOCKIOD();
	return (0);
	}
	-SYSCTL_PROC(_vfs_nfs, OID_AUTO, iodmin, CTLTYPE_UINT \| CTLFLAG_RW, 0,
	- sizeof (nfs_iodmin), sysctl_iodmin, "IU",
	+SYSCTL_PROC(_vfs_nfs, OID_AUTO, iodmin,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, sizeof (nfs_iodmin),
	+ sysctl_iodmin, "IU",
	"Min number of nfsiod kthreads to keep as spares");

	static int
	@@ -160,8 +161,9 @@
	NFSUNLOCKIOD();
	return (0);
	}
	-SYSCTL_PROC(_vfs_nfs, OID_AUTO, iodmax, CTLTYPE_UINT \| CTLFLAG_RW, 0,
	- sizeof (ncl_iodmax), sysctl_iodmax, "IU",
	+SYSCTL_PROC(_vfs_nfs, OID_AUTO, iodmax,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, sizeof (ncl_iodmax),
	+ sysctl_iodmax, "IU",
	"Max number of nfsiod kthreads");

	static int
	Index: head/sys/fs/nfsserver/nfs_fha_new.c
	===================================================================
	--- head/sys/fs/nfsserver/nfs_fha_new.c
	+++ head/sys/fs/nfsserver/nfs_fha_new.c
	@@ -94,8 +94,8 @@
	*/
	sysctl_ctx_init(&softc->sysctl_ctx);
	softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
	- SYSCTL_STATIC_CHILDREN(_vfs_nfsd), OID_AUTO, "fha", CTLFLAG_RD,
	- 0, "NFS File Handle Affinity (FHA)");
	+ SYSCTL_STATIC_CHILDREN(_vfs_nfsd), OID_AUTO, "fha",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "NFS File Handle Affinity (FHA)");
	if (softc->sysctl_tree == NULL) {
	printf("%s: unable to allocate sysctl tree\n", __func__);
	return;
	Index: head/sys/fs/nfsserver/nfs_nfsdport.c
	===================================================================
	--- head/sys/fs/nfsserver/nfs_nfsdport.c
	+++ head/sys/fs/nfsserver/nfs_nfsdport.c
	@@ -147,7 +147,8 @@

	int nfs_pnfsio(task_fn_t , void );

	-SYSCTL_NODE(_vfs, OID_AUTO, nfsd, CTLFLAG_RW, 0, "NFS server");
	+SYSCTL_NODE(_vfs, OID_AUTO, nfsd, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "NFS server");
	SYSCTL_INT(_vfs_nfsd, OID_AUTO, mirrormnt, CTLFLAG_RW,
	&nfsrv_enable_crossmntpt, 0, "Enable nfsd to cross mount points");
	SYSCTL_INT(_vfs_nfsd, OID_AUTO, commit_blks, CTLFLAG_RW, &nfs_commit_blks,
	Index: head/sys/fs/smbfs/smbfs_vfsops.c
	===================================================================
	--- head/sys/fs/smbfs/smbfs_vfsops.c
	+++ head/sys/fs/smbfs/smbfs_vfsops.c
	@@ -56,7 +56,8 @@

	static int smbfs_version = SMBFS_VERSION;

	-SYSCTL_NODE(_vfs, OID_AUTO, smbfs, CTLFLAG_RW, 0, "SMB/CIFS filesystem");
	+SYSCTL_NODE(_vfs, OID_AUTO, smbfs, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "SMB/CIFS filesystem");
	SYSCTL_INT(_vfs_smbfs, OID_AUTO, version, CTLFLAG_RD, &smbfs_version, 0, "");
	SYSCTL_INT(_vfs_smbfs, OID_AUTO, debuglevel, CTLFLAG_RW, &smbfs_debuglevel, 0, "");

	Index: head/sys/fs/tmpfs/tmpfs_subr.c
	===================================================================
	--- head/sys/fs/tmpfs/tmpfs_subr.c
	+++ head/sys/fs/tmpfs/tmpfs_subr.c
	@@ -68,7 +68,8 @@
	#include <fs/tmpfs/tmpfs_fifoops.h>
	#include <fs/tmpfs/tmpfs_vnops.h>

	-SYSCTL_NODE(_vfs, OID_AUTO, tmpfs, CTLFLAG_RW, 0, "tmpfs file system");
	+SYSCTL_NODE(_vfs, OID_AUTO, tmpfs, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "tmpfs file system");

	static long tmpfs_pages_reserved = TMPFS_PAGES_MINRESERVED;

	Index: head/sys/gdb/gdb_main.c
	===================================================================
	--- head/sys/gdb/gdb_main.c
	+++ head/sys/gdb/gdb_main.c
	@@ -44,7 +44,8 @@
	#include <gdb/gdb.h>
	#include <gdb/gdb_int.h>

	-SYSCTL_NODE(_debug, OID_AUTO, gdb, CTLFLAG_RW, 0, "GDB settings");
	+SYSCTL_NODE(_debug, OID_AUTO, gdb, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "GDB settings");

	static dbbe_init_f gdb_init;
	static dbbe_trap_f gdb_trap;
	Index: head/sys/gdb/netgdb.c
	===================================================================
	--- head/sys/gdb/netgdb.c
	+++ head/sys/gdb/netgdb.c
	@@ -82,7 +82,7 @@
	#include <gdb/netgdb.h>

	FEATURE(netgdb, "NetGDB support");
	-SYSCTL_NODE(_debug_gdb, OID_AUTO, netgdb, CTLFLAG_RD, NULL,
	+SYSCTL_NODE(_debug_gdb, OID_AUTO, netgdb, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"NetGDB parameters");

	static unsigned netgdb_debug;
	Index: head/sys/geom/cache/g_cache.c
	===================================================================
	--- head/sys/geom/cache/g_cache.c
	+++ head/sys/geom/cache/g_cache.c
	@@ -51,7 +51,7 @@
	static MALLOC_DEFINE(M_GCACHE, "gcache_data", "GEOM_CACHE Data");

	SYSCTL_DECL(_kern_geom);
	-static SYSCTL_NODE(_kern_geom, OID_AUTO, cache, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom, OID_AUTO, cache, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_CACHE stuff");
	static u_int g_cache_debug = 0;
	SYSCTL_UINT(_kern_geom_cache, OID_AUTO, debug, CTLFLAG_RW, &g_cache_debug, 0,
	@@ -84,10 +84,14 @@
	(u_int )arg1 = val;
	return (0);
	}
	-SYSCTL_PROC(_kern_geom_cache, OID_AUTO, used_lo, CTLTYPE_UINT\|CTLFLAG_RW,
	- &g_cache_used_lo, 0, sysctl_handle_pct, "IU", "");
	-SYSCTL_PROC(_kern_geom_cache, OID_AUTO, used_hi, CTLTYPE_UINT\|CTLFLAG_RW,
	- &g_cache_used_hi, 0, sysctl_handle_pct, "IU", "");
	+SYSCTL_PROC(_kern_geom_cache, OID_AUTO, used_lo,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &g_cache_used_lo, 0,
	+ sysctl_handle_pct, "IU",
	+ "");
	+SYSCTL_PROC(_kern_geom_cache, OID_AUTO, used_hi,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &g_cache_used_hi, 0,
	+ sysctl_handle_pct, "IU",
	+ "");


	static int g_cache_destroy(struct g_cache_softc *sc, boolean_t force);
	Index: head/sys/geom/concat/g_concat.c
	===================================================================
	--- head/sys/geom/concat/g_concat.c
	+++ head/sys/geom/concat/g_concat.c
	@@ -48,7 +48,7 @@
	static MALLOC_DEFINE(M_CONCAT, "concat_data", "GEOM_CONCAT Data");

	SYSCTL_DECL(_kern_geom);
	-static SYSCTL_NODE(_kern_geom, OID_AUTO, concat, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom, OID_AUTO, concat, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_CONCAT stuff");
	static u_int g_concat_debug = 0;
	SYSCTL_UINT(_kern_geom_concat, OID_AUTO, debug, CTLFLAG_RWTUN, &g_concat_debug, 0,
	Index: head/sys/geom/gate/g_gate.c
	===================================================================
	--- head/sys/geom/gate/g_gate.c
	+++ head/sys/geom/gate/g_gate.c
	@@ -62,7 +62,7 @@
	static MALLOC_DEFINE(M_GATE, "gg_data", "GEOM Gate Data");

	SYSCTL_DECL(_kern_geom);
	-static SYSCTL_NODE(_kern_geom, OID_AUTO, gate, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom, OID_AUTO, gate, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_GATE configuration");
	static int g_gate_debug = 0;
	SYSCTL_INT(_kern_geom_gate, OID_AUTO, debug, CTLFLAG_RWTUN, &g_gate_debug, 0,
	Index: head/sys/geom/geom_dev.c
	===================================================================
	--- head/sys/geom/geom_dev.c
	+++ head/sys/geom/geom_dev.c
	@@ -112,7 +112,8 @@
	*/
	static uint64_t g_dev_del_max_sectors = 262144;
	SYSCTL_DECL(_kern_geom);
	-SYSCTL_NODE(_kern_geom, OID_AUTO, dev, CTLFLAG_RW, 0, "GEOM_DEV stuff");
	+SYSCTL_NODE(_kern_geom, OID_AUTO, dev, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "GEOM_DEV stuff");
	SYSCTL_QUAD(_kern_geom_dev, OID_AUTO, delete_max_sectors, CTLFLAG_RW,
	&g_dev_del_max_sectors, 0, "Maximum number of sectors in a single "
	"delete request sent to the provider. Larger requests are chunked "
	Index: head/sys/geom/geom_disk.c
	===================================================================
	--- head/sys/geom/geom_disk.c
	+++ head/sys/geom/geom_disk.c
	@@ -92,7 +92,7 @@
	};

	SYSCTL_DECL(_kern_geom);
	-static SYSCTL_NODE(_kern_geom, OID_AUTO, disk, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom, OID_AUTO, disk, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_DISK stuff");

	DECLARE_GEOM_CLASS(g_disk_class, g_disk);
	@@ -742,7 +742,7 @@
	snprintf(tmpstr, sizeof(tmpstr), "GEOM disk %s", gp->name);
	sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_kern_geom_disk), OID_AUTO, gp->name,
	- CTLFLAG_RD, 0, tmpstr);
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, tmpstr);
	if (sc->sysctl_tree != NULL) {
	SYSCTL_ADD_STRING(&sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, "led",
	@@ -750,8 +750,8 @@
	"LED name");
	SYSCTL_ADD_PROC(&sc->sysctl_ctx,
	SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, "flags",
	- CTLTYPE_STRING \| CTLFLAG_RD, dp, 0, g_disk_sysctl_flags,
	- "A", "Report disk flags");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, dp, 0,
	+ g_disk_sysctl_flags, "A", "Report disk flags");
	}
	pp->private = sc;
	dp->d_geom = gp;
	Index: head/sys/geom/geom_kern.c
	===================================================================
	--- head/sys/geom/geom_kern.c
	+++ head/sys/geom/geom_kern.c
	@@ -204,19 +204,23 @@
	return (sysctl_kern_geom_confany(req, g_confxml, &hint));
	}

	-SYSCTL_NODE(_kern, OID_AUTO, geom, CTLFLAG_RW, 0, "GEOMetry management");
	+SYSCTL_NODE(_kern, OID_AUTO, geom, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "GEOMetry management");

	-SYSCTL_PROC(_kern_geom, OID_AUTO, confxml, CTLTYPE_STRING\|CTLFLAG_RD,
	- 0, 0, sysctl_kern_geom_confxml, "",
	- "Dump the GEOM config in XML");
	+SYSCTL_PROC(_kern_geom, OID_AUTO, confxml,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, 0, 0,
	+ sysctl_kern_geom_confxml, "",
	+ "Dump the GEOM config in XML");

	-SYSCTL_PROC(_kern_geom, OID_AUTO, confdot, CTLTYPE_STRING\|CTLFLAG_RD,
	- 0, 0, sysctl_kern_geom_confdot, "",
	- "Dump the GEOM config in dot");
	+SYSCTL_PROC(_kern_geom, OID_AUTO, confdot,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, 0, 0,
	+ sysctl_kern_geom_confdot, "",
	+ "Dump the GEOM config in dot");

	-SYSCTL_PROC(_kern_geom, OID_AUTO, conftxt, CTLTYPE_STRING\|CTLFLAG_RD,
	- 0, 0, sysctl_kern_geom_conftxt, "",
	- "Dump the GEOM config in txt");
	+SYSCTL_PROC(_kern_geom, OID_AUTO, conftxt,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, 0, 0,
	+ sysctl_kern_geom_conftxt, "",
	+ "Dump the GEOM config in txt");

	SYSCTL_INT(_kern_geom, OID_AUTO, debugflags, CTLFLAG_RWTUN,
	&g_debugflags, 0, "Set various trace levels for GEOM debugging");
	Index: head/sys/geom/journal/g_journal.c
	===================================================================
	--- head/sys/geom/journal/g_journal.c
	+++ head/sys/geom/journal/g_journal.c
	@@ -95,7 +95,8 @@
	static u_int g_journal_record_entries = GJ_RECORD_HEADER_NENTRIES;
	static u_int g_journal_do_optimize = 1;

	-static SYSCTL_NODE(_kern_geom, OID_AUTO, journal, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom, OID_AUTO, journal,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_JOURNAL stuff");
	SYSCTL_INT(_kern_geom_journal, OID_AUTO, debug, CTLFLAG_RWTUN, &g_journal_debug, 0,
	"Debug level");
	@@ -128,7 +129,8 @@
	return (0);
	}
	SYSCTL_PROC(_kern_geom_journal, OID_AUTO, record_entries,
	- CTLTYPE_UINT \| CTLFLAG_RW, NULL, 0, g_journal_record_entries_sysctl, "I",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ g_journal_record_entries_sysctl, "I",
	"Maximum number of entires in one journal record");
	SYSCTL_UINT(_kern_geom_journal, OID_AUTO, optimize, CTLFLAG_RW,
	&g_journal_do_optimize, 0, "Try to combine bios on flush and copy");
	@@ -141,7 +143,8 @@
	static u_int g_journal_cache_alloc_failures = 0;
	static u_long g_journal_cache_low = 0;

	-static SYSCTL_NODE(_kern_geom_journal, OID_AUTO, cache, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom_journal, OID_AUTO, cache,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_JOURNAL cache");
	SYSCTL_ULONG(_kern_geom_journal_cache, OID_AUTO, used, CTLFLAG_RD,
	&g_journal_cache_used, 0, "Number of allocated bytes");
	@@ -160,7 +163,8 @@
	return (0);
	}
	SYSCTL_PROC(_kern_geom_journal_cache, OID_AUTO, limit,
	- CTLTYPE_ULONG \| CTLFLAG_RWTUN, NULL, 0, g_journal_cache_limit_sysctl, "I",
	+ CTLTYPE_ULONG \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ g_journal_cache_limit_sysctl, "I",
	"Maximum number of allocated bytes");
	SYSCTL_UINT(_kern_geom_journal_cache, OID_AUTO, divisor, CTLFLAG_RDTUN,
	&g_journal_cache_divisor, 0,
	@@ -182,7 +186,8 @@
	return (0);
	}
	SYSCTL_PROC(_kern_geom_journal_cache, OID_AUTO, switch,
	- CTLTYPE_UINT \| CTLFLAG_RW, NULL, 0, g_journal_cache_switch_sysctl, "I",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ g_journal_cache_switch_sysctl, "I",
	"Force switch when we hit this percent of cache use");
	SYSCTL_UINT(_kern_geom_journal_cache, OID_AUTO, misses, CTLFLAG_RW,
	&g_journal_cache_misses, 0, "Number of cache misses");
	@@ -196,7 +201,8 @@
	static u_long g_journal_stats_journal_full = 0;
	static u_long g_journal_stats_low_mem = 0;

	-static SYSCTL_NODE(_kern_geom_journal, OID_AUTO, stats, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom_journal, OID_AUTO, stats,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_JOURNAL statistics");
	SYSCTL_ULONG(_kern_geom_journal_stats, OID_AUTO, skipped_bytes, CTLFLAG_RW,
	&g_journal_stats_bytes_skipped, 0, "Number of skipped bytes");
	Index: head/sys/geom/label/g_label.h
	===================================================================
	--- head/sys/geom/label/g_label.h
	+++ head/sys/geom/label/g_label.h
	@@ -56,7 +56,8 @@
	SYSCTL_DECL(_kern_geom_label);

	#define G_LABEL_INIT(kind, label, descr) \
	- SYSCTL_NODE(_kern_geom_label, OID_AUTO, kind, CTLFLAG_RD, \
	+ SYSCTL_NODE(_kern_geom_label, OID_AUTO, kind, \
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, \
	NULL, ""); \
	SYSCTL_INT(_kern_geom_label_##kind, OID_AUTO, enable, \
	CTLFLAG_RWTUN, &label.ld_enabled, 1, descr)
	Index: head/sys/geom/label/g_label.c
	===================================================================
	--- head/sys/geom/label/g_label.c
	+++ head/sys/geom/label/g_label.c
	@@ -52,7 +52,8 @@
	FEATURE(geom_label, "GEOM labeling support");

	SYSCTL_DECL(_kern_geom);
	-SYSCTL_NODE(_kern_geom, OID_AUTO, label, CTLFLAG_RW, 0, "GEOM_LABEL stuff");
	+SYSCTL_NODE(_kern_geom, OID_AUTO, label, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "GEOM_LABEL stuff");
	u_int g_label_debug = 0;
	SYSCTL_UINT(_kern_geom_label, OID_AUTO, debug, CTLFLAG_RWTUN, &g_label_debug, 0,
	"Debug level");
	Index: head/sys/geom/linux_lvm/g_linux_lvm.c
	===================================================================
	--- head/sys/geom/linux_lvm/g_linux_lvm.c
	+++ head/sys/geom/linux_lvm/g_linux_lvm.c
	@@ -79,7 +79,7 @@
	static int llvm_textconf_decode_sg(char *, char , struct g_llvm_lv *);

	SYSCTL_DECL(_kern_geom);
	-SYSCTL_NODE(_kern_geom, OID_AUTO, linux_lvm, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_kern_geom, OID_AUTO, linux_lvm, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_LINUX_LVM stuff");
	static u_int g_llvm_debug = 0;
	SYSCTL_UINT(_kern_geom_linux_lvm, OID_AUTO, debug, CTLFLAG_RWTUN, &g_llvm_debug, 0,
	Index: head/sys/geom/mirror/g_mirror.c
	===================================================================
	--- head/sys/geom/mirror/g_mirror.c
	+++ head/sys/geom/mirror/g_mirror.c
	@@ -55,7 +55,7 @@
	static MALLOC_DEFINE(M_MIRROR, "mirror_data", "GEOM_MIRROR Data");

	SYSCTL_DECL(_kern_geom);
	-static SYSCTL_NODE(_kern_geom, OID_AUTO, mirror, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom, OID_AUTO, mirror, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_MIRROR stuff");
	int g_mirror_debug = 0;
	SYSCTL_INT(_kern_geom_mirror, OID_AUTO, debug, CTLFLAG_RWTUN, &g_mirror_debug, 0,
	Index: head/sys/geom/mountver/g_mountver.c
	===================================================================
	--- head/sys/geom/mountver/g_mountver.c
	+++ head/sys/geom/mountver/g_mountver.c
	@@ -49,7 +49,7 @@


	SYSCTL_DECL(_kern_geom);
	-static SYSCTL_NODE(_kern_geom, OID_AUTO, mountver, CTLFLAG_RW,
	+static SYSCTL_NODE(_kern_geom, OID_AUTO, mountver, CTLFLAG_RW \| CTLFLAG_MPSAFE,
	0, "GEOM_MOUNTVER stuff");
	static u_int g_mountver_debug = 0;
	static u_int g_mountver_check_ident = 1;
	Index: head/sys/geom/multipath/g_multipath.c
	===================================================================
	--- head/sys/geom/multipath/g_multipath.c
	+++ head/sys/geom/multipath/g_multipath.c
	@@ -53,7 +53,8 @@
	FEATURE(geom_multipath, "GEOM multipath support");

	SYSCTL_DECL(_kern_geom);
	-static SYSCTL_NODE(_kern_geom, OID_AUTO, multipath, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom, OID_AUTO, multipath,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_MULTIPATH tunables");
	static u_int g_multipath_debug = 0;
	SYSCTL_UINT(_kern_geom_multipath, OID_AUTO, debug, CTLFLAG_RW,
	Index: head/sys/geom/nop/g_nop.c
	===================================================================
	--- head/sys/geom/nop/g_nop.c
	+++ head/sys/geom/nop/g_nop.c
	@@ -47,7 +47,8 @@


	SYSCTL_DECL(_kern_geom);
	-static SYSCTL_NODE(_kern_geom, OID_AUTO, nop, CTLFLAG_RW, 0, "GEOM_NOP stuff");
	+static SYSCTL_NODE(_kern_geom, OID_AUTO, nop, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "GEOM_NOP stuff");
	static u_int g_nop_debug = 0;
	SYSCTL_UINT(_kern_geom_nop, OID_AUTO, debug, CTLFLAG_RW, &g_nop_debug, 0,
	"Debug level");
	Index: head/sys/geom/part/g_part.c
	===================================================================
	--- head/sys/geom/part/g_part.c
	+++ head/sys/geom/part/g_part.c
	@@ -133,7 +133,7 @@
	};

	SYSCTL_DECL(_kern_geom);
	-SYSCTL_NODE(_kern_geom, OID_AUTO, part, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_kern_geom, OID_AUTO, part, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_PART stuff");
	static u_int check_integrity = 1;
	SYSCTL_UINT(_kern_geom_part, OID_AUTO, check_integrity,
	Index: head/sys/geom/part/g_part_gpt.c
	===================================================================
	--- head/sys/geom/part/g_part_gpt.c
	+++ head/sys/geom/part/g_part_gpt.c
	@@ -55,7 +55,8 @@
	FEATURE(geom_part_gpt, "GEOM partitioning class for GPT partitions support");

	SYSCTL_DECL(_kern_geom_part);
	-static SYSCTL_NODE(_kern_geom_part, OID_AUTO, gpt, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom_part, OID_AUTO, gpt,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_PART_GPT GUID Partition Table");

	static u_int allow_nesting = 0;
	Index: head/sys/geom/part/g_part_ldm.c
	===================================================================
	--- head/sys/geom/part/g_part_ldm.c
	+++ head/sys/geom/part/g_part_ldm.c
	@@ -53,7 +53,8 @@
	FEATURE(geom_part_ldm, "GEOM partitioning class for LDM support");

	SYSCTL_DECL(_kern_geom_part);
	-static SYSCTL_NODE(_kern_geom_part, OID_AUTO, ldm, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom_part, OID_AUTO, ldm,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_PART_LDM Logical Disk Manager");

	static u_int ldm_debug = 0;
	Index: head/sys/geom/part/g_part_mbr.c
	===================================================================
	--- head/sys/geom/part/g_part_mbr.c
	+++ head/sys/geom/part/g_part_mbr.c
	@@ -52,7 +52,8 @@
	FEATURE(geom_part_mbr, "GEOM partitioning class for MBR support");

	SYSCTL_DECL(_kern_geom_part);
	-static SYSCTL_NODE(_kern_geom_part, OID_AUTO, mbr, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom_part, OID_AUTO, mbr,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_PART_MBR Master Boot Record");

	static u_int enforce_chs = 0;
	Index: head/sys/geom/raid/g_raid.h
	===================================================================
	--- head/sys/geom/raid/g_raid.h
	+++ head/sys/geom/raid/g_raid.h
	@@ -337,7 +337,8 @@
	DECLARE_MODULE(g_raid_md_##name, g_raid_md_##name##_mod, \
	SI_SUB_DRIVERS, SI_ORDER_SECOND); \
	MODULE_DEPEND(g_raid_md_##name, geom_raid, 0, 0, 0); \
	- SYSCTL_NODE(_kern_geom_raid, OID_AUTO, name, CTLFLAG_RD, \
	+ SYSCTL_NODE(_kern_geom_raid, OID_AUTO, name, \
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, \
	NULL, label " metadata module"); \
	SYSCTL_INT(_kern_geom_raid_##name, OID_AUTO, enable, \
	CTLFLAG_RWTUN, &g_raid_md_##name##_class.mdc_enable, 0, \
	@@ -374,7 +375,8 @@
	DECLARE_MODULE(g_raid_tr_##name, g_raid_tr_##name##_mod, \
	SI_SUB_DRIVERS, SI_ORDER_FIRST); \
	MODULE_DEPEND(g_raid_tr_##name, geom_raid, 0, 0, 0); \
	- SYSCTL_NODE(_kern_geom_raid, OID_AUTO, name, CTLFLAG_RD, \
	+ SYSCTL_NODE(_kern_geom_raid, OID_AUTO, name, \
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, \
	NULL, label " transformation module"); \
	SYSCTL_INT(_kern_geom_raid_##name, OID_AUTO, enable, \
	CTLFLAG_RWTUN, &g_raid_tr_##name##_class.trc_enable, 0, \
	Index: head/sys/geom/raid/g_raid.c
	===================================================================
	--- head/sys/geom/raid/g_raid.c
	+++ head/sys/geom/raid/g_raid.c
	@@ -54,7 +54,8 @@
	static MALLOC_DEFINE(M_RAID, "raid_data", "GEOM_RAID Data");

	SYSCTL_DECL(_kern_geom);
	-SYSCTL_NODE(_kern_geom, OID_AUTO, raid, CTLFLAG_RW, 0, "GEOM_RAID stuff");
	+SYSCTL_NODE(_kern_geom, OID_AUTO, raid, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "GEOM_RAID stuff");
	int g_raid_enable = 1;
	SYSCTL_INT(_kern_geom_raid, OID_AUTO, enable, CTLFLAG_RWTUN,
	&g_raid_enable, 0, "Enable on-disk metadata taste");
	Index: head/sys/geom/raid3/g_raid3.c
	===================================================================
	--- head/sys/geom/raid3/g_raid3.c
	+++ head/sys/geom/raid3/g_raid3.c
	@@ -54,7 +54,7 @@
	static MALLOC_DEFINE(M_RAID3, "raid3_data", "GEOM_RAID3 Data");

	SYSCTL_DECL(_kern_geom);
	-static SYSCTL_NODE(_kern_geom, OID_AUTO, raid3, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom, OID_AUTO, raid3, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_RAID3 stuff");
	u_int g_raid3_debug = 0;
	SYSCTL_UINT(_kern_geom_raid3, OID_AUTO, debug, CTLFLAG_RWTUN, &g_raid3_debug, 0,
	@@ -85,7 +85,8 @@
	SYSCTL_UINT(_kern_geom_raid3, OID_AUTO, n4k, CTLFLAG_RDTUN, &g_raid3_n4k, 0,
	"Maximum number of 4kB allocations");

	-static SYSCTL_NODE(_kern_geom_raid3, OID_AUTO, stat, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom_raid3, OID_AUTO, stat,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_RAID3 statistics");
	static u_int g_raid3_parity_mismatch = 0;
	SYSCTL_UINT(_kern_geom_raid3_stat, OID_AUTO, parity_mismatch, CTLFLAG_RD,
	Index: head/sys/geom/shsec/g_shsec.c
	===================================================================
	--- head/sys/geom/shsec/g_shsec.c
	+++ head/sys/geom/shsec/g_shsec.c
	@@ -71,7 +71,7 @@
	};

	SYSCTL_DECL(_kern_geom);
	-static SYSCTL_NODE(_kern_geom, OID_AUTO, shsec, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom, OID_AUTO, shsec, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_SHSEC stuff");
	static u_int g_shsec_debug = 0;
	SYSCTL_UINT(_kern_geom_shsec, OID_AUTO, debug, CTLFLAG_RWTUN, &g_shsec_debug, 0,
	Index: head/sys/geom/stripe/g_stripe.c
	===================================================================
	--- head/sys/geom/stripe/g_stripe.c
	+++ head/sys/geom/stripe/g_stripe.c
	@@ -71,7 +71,7 @@
	};

	SYSCTL_DECL(_kern_geom);
	-static SYSCTL_NODE(_kern_geom, OID_AUTO, stripe, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom, OID_AUTO, stripe, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_STRIPE stuff");
	static u_int g_stripe_debug = 0;
	SYSCTL_UINT(_kern_geom_stripe, OID_AUTO, debug, CTLFLAG_RWTUN, &g_stripe_debug, 0,
	@@ -88,8 +88,10 @@
	g_stripe_fast = fast;
	return (error);
	}
	-SYSCTL_PROC(_kern_geom_stripe, OID_AUTO, fast, CTLTYPE_INT \| CTLFLAG_RWTUN,
	- NULL, 0, g_sysctl_stripe_fast, "I", "Fast, but memory-consuming, mode");
	+SYSCTL_PROC(_kern_geom_stripe, OID_AUTO, fast,
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ g_sysctl_stripe_fast, "I",
	+ "Fast, but memory-consuming, mode");
	static u_int g_stripe_maxmem = MAXPHYS * 100;
	SYSCTL_UINT(_kern_geom_stripe, OID_AUTO, maxmem, CTLFLAG_RDTUN, &g_stripe_maxmem,
	0, "Maximum memory that can be allocated in \"fast\" mode (in bytes)");
	Index: head/sys/geom/uzip/g_uzip.c
	===================================================================
	--- head/sys/geom/uzip/g_uzip.c
	+++ head/sys/geom/uzip/g_uzip.c
	@@ -103,7 +103,8 @@
	sizeof(g_uzip_noattach_to));

	SYSCTL_DECL(_kern_geom);
	-SYSCTL_NODE(_kern_geom, OID_AUTO, uzip, CTLFLAG_RW, 0, "GEOM_UZIP stuff");
	+SYSCTL_NODE(_kern_geom, OID_AUTO, uzip, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "GEOM_UZIP stuff");
	static u_int g_uzip_debug = GEOM_UZIP_DBG_DEFAULT;
	SYSCTL_UINT(_kern_geom_uzip, OID_AUTO, debug, CTLFLAG_RWTUN, &g_uzip_debug, 0,
	"Debug level (0-4)");
	Index: head/sys/geom/vinum/geom_vinum.c
	===================================================================
	--- head/sys/geom/vinum/geom_vinum.c
	+++ head/sys/geom/vinum/geom_vinum.c
	@@ -50,7 +50,7 @@
	#include <geom/vinum/geom_vinum_raid5.h>

	SYSCTL_DECL(_kern_geom);
	-static SYSCTL_NODE(_kern_geom, OID_AUTO, vinum, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom, OID_AUTO, vinum, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_VINUM stuff");
	u_int g_vinum_debug = 0;
	SYSCTL_UINT(_kern_geom_vinum, OID_AUTO, debug, CTLFLAG_RWTUN, &g_vinum_debug, 0,
	Index: head/sys/geom/virstor/g_virstor.c
	===================================================================
	--- head/sys/geom/virstor/g_virstor.c
	+++ head/sys/geom/virstor/g_virstor.c
	@@ -83,7 +83,8 @@

	/* Declare sysctl's and loader tunables */
	SYSCTL_DECL(_kern_geom);
	-static SYSCTL_NODE(_kern_geom, OID_AUTO, virstor, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom, OID_AUTO, virstor,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_GVIRSTOR information");

	static u_int g_virstor_debug = 2; /* XXX: lower to 2 when released to public */
	Index: head/sys/geom/zero/g_zero.c
	===================================================================
	--- head/sys/geom/zero/g_zero.c
	+++ head/sys/geom/zero/g_zero.c
	@@ -46,11 +46,13 @@
	static int g_zero_clear_sysctl(SYSCTL_HANDLER_ARGS);

	SYSCTL_DECL(_kern_geom);
	-static SYSCTL_NODE(_kern_geom, OID_AUTO, zero, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern_geom, OID_AUTO, zero, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"GEOM_ZERO stuff");
	static int g_zero_clear = 1;
	-SYSCTL_PROC(_kern_geom_zero, OID_AUTO, clear, CTLTYPE_INT\|CTLFLAG_RW,
	- &g_zero_clear, 0, g_zero_clear_sysctl, "I", "Clear read data buffer");
	+SYSCTL_PROC(_kern_geom_zero, OID_AUTO, clear,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &g_zero_clear, 0,
	+ g_zero_clear_sysctl, "I",
	+ "Clear read data buffer");
	static int g_zero_byte = 0;
	SYSCTL_INT(_kern_geom_zero, OID_AUTO, byte, CTLFLAG_RW, &g_zero_byte, 0,
	"Byte (octet) value to clear the buffers with");
	Index: head/sys/gnu/gcov/gcov_subr.c
	===================================================================
	--- head/sys/gnu/gcov/gcov_subr.c
	+++ head/sys/gnu/gcov/gcov_subr.c
	@@ -161,9 +161,13 @@

	SYSINIT(gcov_init, SI_SUB_EVENTHANDLER, SI_ORDER_ANY, gcov_init, NULL);

	-static SYSCTL_NODE(_debug, OID_AUTO, gcov, CTLFLAG_RD, NULL,
	+static SYSCTL_NODE(_debug, OID_AUTO, gcov, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"gcov code coverage");
	-SYSCTL_PROC(_debug_gcov, OID_AUTO, reset, CTLTYPE_INT \| CTLFLAG_RW,
	- NULL, 0, gcov_stats_reset_sysctl, "I", "Reset all profiling counts");
	-SYSCTL_PROC(_debug_gcov, OID_AUTO, enable, CTLTYPE_INT \| CTLFLAG_RW,
	- NULL, 0, gcov_stats_enable_sysctl, "I", "Enable code coverage");
	+SYSCTL_PROC(_debug_gcov, OID_AUTO, reset,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ gcov_stats_reset_sysctl, "I",
	+ "Reset all profiling counts");
	+SYSCTL_PROC(_debug_gcov, OID_AUTO, enable,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ gcov_stats_enable_sysctl, "I",
	+ "Enable code coverage");
	Index: head/sys/i386/i386/elan-mmcr.c
	===================================================================
	--- head/sys/i386/i386/elan-mmcr.c
	+++ head/sys/i386/i386/elan-mmcr.c
	@@ -221,8 +221,10 @@
	return (0);
	}

	-SYSCTL_OID(_machdep, OID_AUTO, elan_gpio_config, CTLTYPE_STRING \| CTLFLAG_RW,
	- NULL, 0, sysctl_machdep_elan_gpio_config, "A", "Elan CPU GPIO pin config");
	+SYSCTL_OID(_machdep, OID_AUTO, elan_gpio_config,
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ sysctl_machdep_elan_gpio_config, "A",
	+ "Elan CPU GPIO pin config");

	#ifdef CPU_ELAN_PPS
	static void
	@@ -321,8 +323,10 @@
	return (error);
	}

	-SYSCTL_PROC(_machdep, OID_AUTO, elan_freq, CTLTYPE_UINT \| CTLFLAG_RW,
	- 0, sizeof (u_int), sysctl_machdep_elan_freq, "IU", "");
	+SYSCTL_PROC(_machdep, OID_AUTO, elan_freq,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, sizeof (u_int),
	+ sysctl_machdep_elan_freq, "IU",
	+ "");

	/*
	* Positively identifying the Elan can only be done through the PCI id of
	Index: head/sys/i386/i386/longrun.c
	===================================================================
	--- head/sys/i386/i386/longrun.c
	+++ head/sys/i386/i386/longrun.c
	@@ -276,31 +276,34 @@

	sysctl_ctx_init(&crusoe_sysctl_ctx);
	crusoe_sysctl_tree = SYSCTL_ADD_NODE(&crusoe_sysctl_ctx,
	- SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
	- "crusoe", CTLFLAG_RD, 0,
	- "Transmeta Crusoe LongRun support");
	+ SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO, "crusoe",
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Transmeta Crusoe LongRun support");
	SYSCTL_ADD_PROC(&crusoe_sysctl_ctx, SYSCTL_CHILDREN(crusoe_sysctl_tree),
	- OID_AUTO, "longrun", CTLTYPE_INT \| CTLFLAG_RW,
	- &crusoe_longrun, 0, tmx86_longrun_sysctl, "I",
	- "LongRun mode [0-3]");
	+ OID_AUTO, "longrun", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &crusoe_longrun, 0, tmx86_longrun_sysctl, "I",
	+ "LongRun mode [0-3]");
	SYSCTL_ADD_PROC(&crusoe_sysctl_ctx, SYSCTL_CHILDREN(crusoe_sysctl_tree),
	- OID_AUTO, "frequency", CTLTYPE_INT \| CTLFLAG_RD,
	- &crusoe_frequency, 0, tmx86_status_sysctl, "I",
	- "Current frequency (MHz)");
	+ OID_AUTO, "frequency", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ &crusoe_frequency, 0, tmx86_status_sysctl, "I",
	+ "Current frequency (MHz)");
	SYSCTL_ADD_PROC(&crusoe_sysctl_ctx, SYSCTL_CHILDREN(crusoe_sysctl_tree),
	- OID_AUTO, "voltage", CTLTYPE_INT \| CTLFLAG_RD,
	- &crusoe_voltage, 0, tmx86_status_sysctl, "I",
	- "Current voltage (mV)");
	+ OID_AUTO, "voltage", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ &crusoe_voltage, 0, tmx86_status_sysctl, "I",
	+ "Current voltage (mV)");
	SYSCTL_ADD_PROC(&crusoe_sysctl_ctx, SYSCTL_CHILDREN(crusoe_sysctl_tree),
	- OID_AUTO, "percentage", CTLTYPE_INT \| CTLFLAG_RD,
	- &crusoe_percentage, 0, tmx86_status_sysctl, "I",
	- "Processing performance (%)");
	+ OID_AUTO, "percentage",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &crusoe_percentage,
	+ 0, tmx86_status_sysctl, "I", "Processing performance (%)");
	SYSCTL_ADD_PROC(&crusoe_sysctl_ctx, SYSCTL_CHILDREN(crusoe_sysctl_tree),
	- OID_AUTO, "performance_longrun", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_RW,
	- &crusoe_performance_longrun, 0, tmx86_longrun_profile_sysctl, "I", "");
	+ OID_AUTO, "performance_longrun",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &crusoe_performance_longrun, 0, tmx86_longrun_profile_sysctl, "I",
	+ "");
	SYSCTL_ADD_PROC(&crusoe_sysctl_ctx, SYSCTL_CHILDREN(crusoe_sysctl_tree),
	- OID_AUTO, "economy_longrun", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_RW,
	- &crusoe_economy_longrun, 0, tmx86_longrun_profile_sysctl, "I", "");
	+ OID_AUTO, "economy_longrun",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &crusoe_economy_longrun, 0, tmx86_longrun_profile_sysctl, "I", "");

	/* register performance profile change handler */
	EVENTHANDLER_REGISTER(power_profile_change, tmx86_longrun_power_profile, NULL, 0);
	Index: head/sys/i386/i386/machdep.c
	===================================================================
	--- head/sys/i386/i386/machdep.c
	+++ head/sys/i386/i386/machdep.c
	@@ -2666,8 +2666,10 @@
	}
	return (error);
	}
	-SYSCTL_PROC(_machdep, OID_AUTO, smap, CTLTYPE_OPAQUE\|CTLFLAG_RD, NULL, 0,
	- smap_sysctl_handler, "S,bios_smap_xattr", "Raw BIOS SMAP data");
	+SYSCTL_PROC(_machdep, OID_AUTO, smap,
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	+ smap_sysctl_handler, "S,bios_smap_xattr",
	+ "Raw BIOS SMAP data");

	void
	spinlock_enter(void)
	Index: head/sys/i386/i386/mp_clock.c
	===================================================================
	--- head/sys/i386/i386/mp_clock.c
	+++ head/sys/i386/i386/mp_clock.c
	@@ -81,8 +81,10 @@
	return (error);
	}

	-SYSCTL_PROC(_machdep, OID_AUTO, piix_freq, CTLTYPE_INT \| CTLFLAG_RW,
	- 0, sizeof(u_int), sysctl_machdep_piix_freq, "I", "");
	+SYSCTL_PROC(_machdep, OID_AUTO, piix_freq,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, sizeof(u_int),
	+ sysctl_machdep_piix_freq, "I",
	+ "");

	static unsigned
	piix_get_timecount(struct timecounter *tc)
	Index: head/sys/i386/i386/pmap_base.c
	===================================================================
	--- head/sys/i386/i386/pmap_base.c
	+++ head/sys/i386/i386/pmap_base.c
	@@ -107,7 +107,8 @@
	#endif
	#include <x86/ifunc.h>

	-static SYSCTL_NODE(_vm, OID_AUTO, pmap, CTLFLAG_RD, 0, "VM/pmap parameters");
	+static SYSCTL_NODE(_vm, OID_AUTO, pmap, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "VM/pmap parameters");

	#include <machine/vmparam.h>
	#include <vm/vm.h>
	@@ -164,7 +165,7 @@
	&shpgperproc, 0,
	"Page share factor per proc");

	-static SYSCTL_NODE(_vm_pmap, OID_AUTO, pde, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_vm_pmap, OID_AUTO, pde, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"2/4MB page mapping counters");

	u_long pmap_pde_demotions;
	Index: head/sys/i386/i386/prof_machdep.c
	===================================================================
	--- head/sys/i386/i386/prof_machdep.c
	+++ head/sys/i386/i386/prof_machdep.c
	@@ -300,8 +300,10 @@
	return (error);
	}

	-SYSCTL_PROC(_machdep, OID_AUTO, cputime_clock, CTLTYPE_INT \| CTLFLAG_RW,
	- 0, sizeof(u_int), sysctl_machdep_cputime_clock, "I", "");
	+SYSCTL_PROC(_machdep, OID_AUTO, cputime_clock,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, sizeof(u_int),
	+ sysctl_machdep_cputime_clock, "I",
	+ "");

	/*
	* The start and stop routines need not be here since we turn off profiling
	Index: head/sys/kern/imgact_binmisc.c
	===================================================================
	--- head/sys/kern/imgact_binmisc.c
	+++ head/sys/kern/imgact_binmisc.c
	@@ -506,7 +506,7 @@
	return (error);
	}

	-SYSCTL_NODE(_kern, OID_AUTO, binmisc, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_kern, OID_AUTO, binmisc, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Image activator for miscellaneous binaries");

	SYSCTL_PROC(_kern_binmisc, OID_AUTO, add,
	Index: head/sys/kern/imgact_elf.c
	===================================================================
	--- head/sys/kern/imgact_elf.c
	+++ head/sys/kern/imgact_elf.c
	@@ -102,7 +102,8 @@
	static vm_prot_t __elfN(trans_prot)(Elf_Word);
	static Elf_Word __elfN(untrans_prot)(vm_prot_t);

	-SYSCTL_NODE(_kern, OID_AUTO, __CONCAT(elf, __ELF_WORD_SIZE), CTLFLAG_RW, 0,
	+SYSCTL_NODE(_kern, OID_AUTO, __CONCAT(elf, __ELF_WORD_SIZE),
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"");

	#define CORE_BUF_SIZE (16 * 1024)
	@@ -156,7 +157,8 @@
	sysctl_pie_base, "LU",
	"PIE load base without randomization");

	-SYSCTL_NODE(__CONCAT(_kern_elf, __ELF_WORD_SIZE), OID_AUTO, aslr, CTLFLAG_RW, 0,
	+SYSCTL_NODE(__CONCAT(_kern_elf, __ELF_WORD_SIZE), OID_AUTO, aslr,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"");
	#define ASLR_NODE_OID __CONCAT(__CONCAT(_kern_elf, __ELF_WORD_SIZE), _aslr)

	Index: head/sys/kern/kern_acct.c
	===================================================================
	--- head/sys/kern/kern_acct.c
	+++ head/sys/kern/kern_acct.c
	@@ -187,8 +187,9 @@
	acctchkfreq = value;
	return (0);
	}
	-SYSCTL_PROC(_kern, OID_AUTO, acct_chkfreq, CTLTYPE_INT\|CTLFLAG_RW,
	- &acctchkfreq, 0, sysctl_acct_chkfreq, "I",
	+SYSCTL_PROC(_kern, OID_AUTO, acct_chkfreq,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &acctchkfreq, 0,
	+ sysctl_acct_chkfreq, "I",
	"frequency for checking the free space");

	SYSCTL_INT(_kern, OID_AUTO, acct_configured, CTLFLAG_RD, &acct_configured, 0,
	Index: head/sys/kern/kern_clock.c
	===================================================================
	--- head/sys/kern/kern_clock.c
	+++ head/sys/kern/kern_clock.c
	@@ -304,7 +304,7 @@

	SYSINIT(deadlkres, SI_SUB_CLOCKS, SI_ORDER_ANY, kthread_start, &deadlkres_kd);

	-static SYSCTL_NODE(_debug, OID_AUTO, deadlkres, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_debug, OID_AUTO, deadlkres, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Deadlock resolver");
	SYSCTL_INT(_debug_deadlkres, OID_AUTO, slptime_threshold, CTLFLAG_RW,
	&slptime_threshold, 0,
	Index: head/sys/kern/kern_cons.c
	===================================================================
	--- head/sys/kern/kern_cons.c
	+++ head/sys/kern/kern_cons.c
	@@ -360,8 +360,10 @@
	return (error);
	}

	-SYSCTL_PROC(_kern, OID_AUTO, console, CTLTYPE_STRING\|CTLFLAG_RW,
	- 0, 0, sysctl_kern_console, "A", "Console device control");
	+SYSCTL_PROC(_kern, OID_AUTO, console,
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, 0,
	+ sysctl_kern_console, "A",
	+ "Console device control");

	/*
	* User has changed the state of the console muting.
	@@ -378,9 +380,10 @@
	return (error);
	}

	-SYSCTL_PROC(_kern, OID_AUTO, consmute, CTLTYPE_INT\|CTLFLAG_RW,
	- 0, sizeof(cn_mute), sysctl_kern_consmute, "I",
	- "State of the console muting");
	+SYSCTL_PROC(_kern, OID_AUTO, consmute,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, sizeof(cn_mute),
	+ sysctl_kern_consmute, "I",
	+ "State of the console muting");

	void
	cngrab()
	Index: head/sys/kern/kern_cpu.c
	===================================================================
	--- head/sys/kern/kern_cpu.c
	+++ head/sys/kern/kern_cpu.c
	@@ -136,7 +136,7 @@

	static int cf_lowest_freq;
	static int cf_verbose;
	-static SYSCTL_NODE(_debug, OID_AUTO, cpufreq, CTLFLAG_RD, NULL,
	+static SYSCTL_NODE(_debug, OID_AUTO, cpufreq, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"cpufreq debugging");
	SYSCTL_INT(_debug_cpufreq, OID_AUTO, lowest, CTLFLAG_RWTUN, &cf_lowest_freq, 1,
	"Don't provide levels below this frequency.");
	@@ -183,11 +183,12 @@
	M_DEVBUF, M_WAITOK);
	SYSCTL_ADD_PROC(&sc->sysctl_ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(parent)),
	- OID_AUTO, "freq", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	- cpufreq_curr_sysctl, "I", "Current CPU frequency");
	+ OID_AUTO, "freq", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ sc, 0, cpufreq_curr_sysctl, "I", "Current CPU frequency");
	SYSCTL_ADD_PROC(&sc->sysctl_ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(parent)),
	- OID_AUTO, "freq_levels", CTLTYPE_STRING \| CTLFLAG_RD, sc, 0,
	+ OID_AUTO, "freq_levels",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sc, 0,
	cpufreq_levels_sysctl, "A", "CPU frequency levels");

	/*
	@@ -1080,7 +1081,8 @@
	/* Add a sysctl to get each driver's settings separately. */
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "freq_settings", CTLTYPE_STRING \| CTLFLAG_RD, dev, 0,
	+ OID_AUTO, "freq_settings",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, dev, 0,
	cpufreq_settings_sysctl, "A", "CPU frequency driver settings");

	/*
	Index: head/sys/kern/kern_et.c
	===================================================================
	--- head/sys/kern/kern_et.c
	+++ head/sys/kern/kern_et.c
	@@ -45,8 +45,11 @@
	struct mtx et_eventtimers_mtx;
	MTX_SYSINIT(et_eventtimers_init, &et_eventtimers_mtx, "et_mtx", MTX_DEF);

	-SYSCTL_NODE(_kern, OID_AUTO, eventtimer, CTLFLAG_RW, 0, "Event timers");
	-static SYSCTL_NODE(_kern_eventtimer, OID_AUTO, et, CTLFLAG_RW, 0, "");
	+SYSCTL_NODE(_kern, OID_AUTO, eventtimer, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Event timers");
	+static SYSCTL_NODE(_kern_eventtimer, OID_AUTO, et,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "");

	/*
	* Register a new event timer hardware.
	@@ -70,7 +73,8 @@
	KASSERT(et->et_start, ("et_register: timer has no start function"));
	et->et_sysctl = SYSCTL_ADD_NODE_WITH_LABEL(NULL,
	SYSCTL_STATIC_CHILDREN(_kern_eventtimer_et), OID_AUTO, et->et_name,
	- CTLFLAG_RW, 0, "event timer description", "eventtimer");
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "event timer description", "eventtimer");
	SYSCTL_ADD_INT(NULL, SYSCTL_CHILDREN(et->et_sysctl), OID_AUTO,
	"flags", CTLFLAG_RD, &(et->et_flags), 0,
	"Event timer capabilities");
	Index: head/sys/kern/kern_fail.c
	===================================================================
	--- head/sys/kern/kern_fail.c
	+++ head/sys/kern/kern_fail.c
	@@ -1131,7 +1131,8 @@
	}

	/* The fail point sysctl tree. */
	-SYSCTL_NODE(_debug, OID_AUTO, fail_point, CTLFLAG_RW, 0, "fail points");
	+SYSCTL_NODE(_debug, OID_AUTO, fail_point, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "fail points");

	/* Debugging/testing stuff for fail point */
	static int
	@@ -1142,5 +1143,6 @@
	return (0);
	}
	SYSCTL_OID(_debug_fail_point, OID_AUTO, test_trigger_fail_point,
	- CTLTYPE_STRING \| CTLFLAG_RD, NULL, 0, sysctl_test_fail_point, "A",
	- "Trigger test fail points");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ sysctl_test_fail_point, "A",
	+ "Trigger test fail points");
	Index: head/sys/kern/kern_ffclock.c
	===================================================================
	--- head/sys/kern/kern_ffclock.c
	+++ head/sys/kern/kern_ffclock.c
	@@ -155,9 +155,9 @@
	* live under the ffclock subnode.
	*/

	-SYSCTL_NODE(_kern, OID_AUTO, sysclock, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_kern, OID_AUTO, sysclock, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"System clock related configuration");
	-SYSCTL_NODE(_kern_sysclock, OID_AUTO, ffclock, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_kern_sysclock, OID_AUTO, ffclock, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Feed-forward clock configuration");

	static char *sysclocks[] = {"feedback", "feed-forward"};
	@@ -191,8 +191,9 @@
	return (error);
	}

	-SYSCTL_PROC(_kern_sysclock, OID_AUTO, available, CTLTYPE_STRING \| CTLFLAG_RD,
	- 0, 0, sysctl_kern_sysclock_available, "A",
	+SYSCTL_PROC(_kern_sysclock, OID_AUTO, available,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, 0, 0,
	+ sysctl_kern_sysclock_available, "A",
	"List of available system clocks");

	/*
	@@ -231,8 +232,9 @@
	return (error);
	}

	-SYSCTL_PROC(_kern_sysclock, OID_AUTO, active, CTLTYPE_STRING \| CTLFLAG_RW,
	- 0, 0, sysctl_kern_sysclock_active, "A",
	+SYSCTL_PROC(_kern_sysclock, OID_AUTO, active,
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, 0,
	+ sysctl_kern_sysclock_active, "A",
	"Name of the active system clock which is currently serving time");

	static int sysctl_kern_ffclock_ffcounter_bypass = 0;
	Index: head/sys/kern/kern_fork.c
	===================================================================
	--- head/sys/kern/kern_fork.c
	+++ head/sys/kern/kern_fork.c
	@@ -236,8 +236,10 @@
	return (error);
	}

	-SYSCTL_PROC(_kern, OID_AUTO, randompid, CTLTYPE_INT\|CTLFLAG_RW,
	- 0, 0, sysctl_kern_randompid, "I", "Random PID modulus. Special values: 0: disable, 1: choose random value");
	+SYSCTL_PROC(_kern, OID_AUTO, randompid,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, 0,
	+ sysctl_kern_randompid, "I",
	+ "Random PID modulus. Special values: 0: disable, 1: choose random value");

	extern bitstr_t proc_id_pidmap;
	extern bitstr_t proc_id_grpidmap;
	Index: head/sys/kern/kern_intr.c
	===================================================================
	--- head/sys/kern/kern_intr.c
	+++ head/sys/kern/kern_intr.c
	@@ -1591,8 +1591,10 @@
	return (sysctl_handle_opaque(oidp, intrnames, sintrnames, req));
	}

	-SYSCTL_PROC(_hw, OID_AUTO, intrnames, CTLTYPE_OPAQUE \| CTLFLAG_RD,
	- NULL, 0, sysctl_intrnames, "", "Interrupt Names");
	+SYSCTL_PROC(_hw, OID_AUTO, intrnames,
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ sysctl_intrnames, "",
	+ "Interrupt Names");

	static int
	sysctl_intrcnt(SYSCTL_HANDLER_ARGS)
	@@ -1618,8 +1620,10 @@
	return (sysctl_handle_opaque(oidp, intrcnt, sintrcnt, req));
	}

	-SYSCTL_PROC(_hw, OID_AUTO, intrcnt, CTLTYPE_OPAQUE \| CTLFLAG_RD,
	- NULL, 0, sysctl_intrcnt, "", "Interrupt Counts");
	+SYSCTL_PROC(_hw, OID_AUTO, intrcnt,
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ sysctl_intrcnt, "",
	+ "Interrupt Counts");

	#ifdef DDB
	/*
	Index: head/sys/kern/kern_jail.c
	===================================================================
	--- head/sys/kern/kern_jail.c
	+++ head/sys/kern/kern_jail.c
	@@ -3404,7 +3404,7 @@
	/*
	* Jail-related sysctls.
	*/
	-static SYSCTL_NODE(_security, OID_AUTO, jail, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_security, OID_AUTO, jail, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Jails");

	static int
	@@ -3643,7 +3643,7 @@
	* is returned in the string itself, and the other parameters exist merely
	* to make themselves and their types known.
	*/
	-SYSCTL_NODE(_security_jail, OID_AUTO, param, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_security_jail, OID_AUTO, param, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Jail parameters");

	int
	@@ -3853,7 +3853,7 @@
	parent = prefix
	? SYSCTL_ADD_NODE(NULL,
	SYSCTL_CHILDREN(&sysctl___security_jail_param_allow),
	- OID_AUTO, prefix, 0, 0, prefix_descr)
	+ OID_AUTO, prefix, CTLFLAG_MPSAFE, 0, prefix_descr)
	: &sysctl___security_jail_param_allow;
	(void)SYSCTL_ADD_PROC(NULL, SYSCTL_CHILDREN(parent), OID_AUTO,
	name, CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	Index: head/sys/kern/kern_kcov.c
	===================================================================
	--- head/sys/kern/kern_kcov.c
	+++ head/sys/kern/kern_kcov.c
	@@ -149,7 +149,8 @@
	.d_name = "kcov",
	};

	-SYSCTL_NODE(_kern, OID_AUTO, kcov, CTLFLAG_RW, 0, "Kernel coverage");
	+SYSCTL_NODE(_kern, OID_AUTO, kcov, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Kernel coverage");

	static u_int kcov_max_entries = KCOV_MAXENTRIES;
	SYSCTL_UINT(_kern_kcov, OID_AUTO, max_entries, CTLFLAG_RW,
	Index: head/sys/kern/kern_ktr.c
	===================================================================
	--- head/sys/kern/kern_ktr.c
	+++ head/sys/kern/kern_ktr.c
	@@ -102,7 +102,8 @@
	struct ktr_entry *ktr_buf = ktr_buf_init;
	cpuset_t ktr_cpumask = CPUSET_T_INITIALIZER(KTR_CPUMASK);

	-static SYSCTL_NODE(_debug, OID_AUTO, ktr, CTLFLAG_RD, 0, "KTR options");
	+static SYSCTL_NODE(_debug, OID_AUTO, ktr, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "KTR options");

	SYSCTL_INT(_debug_ktr, OID_AUTO, version, CTLFLAG_RD,
	&ktr_version, 0, "Version of the KTR interface");
	@@ -150,8 +151,10 @@

	return (error);
	}
	-SYSCTL_PROC(_debug_ktr, OID_AUTO, clear, CTLTYPE_INT\|CTLFLAG_RW, 0, 0,
	- sysctl_debug_ktr_clear, "I", "Clear KTR Buffer");
	+SYSCTL_PROC(_debug_ktr, OID_AUTO, clear,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, 0,
	+ sysctl_debug_ktr_clear, "I",
	+ "Clear KTR Buffer");

	/*
	* This is a sysctl proc so that it is serialized as !MPSAFE along with
	@@ -171,8 +174,9 @@
	return (error);
	}

	-SYSCTL_PROC(_debug_ktr, OID_AUTO, mask, CTLTYPE_U64 \| CTLFLAG_RWTUN, 0, 0,
	- sysctl_debug_ktr_mask, "QU",
	+SYSCTL_PROC(_debug_ktr, OID_AUTO, mask,
	+ CTLTYPE_U64 \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_debug_ktr_mask, "QU",
	"Bitmask of KTR event classes for which logging is enabled");

	#if KTR_ENTRIES > KTR_BOOT_ENTRIES
	@@ -242,8 +246,10 @@
	return (error);
	}

	-SYSCTL_PROC(_debug_ktr, OID_AUTO, entries, CTLTYPE_INT\|CTLFLAG_RW, 0, 0,
	- sysctl_debug_ktr_entries, "I", "Number of entries in the KTR buffer");
	+SYSCTL_PROC(_debug_ktr, OID_AUTO, entries,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_debug_ktr_entries, "I",
	+ "Number of entries in the KTR buffer");

	#ifdef KTR_VERBOSE
	int ktr_verbose = KTR_VERBOSE;
	@@ -305,8 +311,9 @@
	return (error);
	}
	SYSCTL_PROC(_debug_ktr, OID_AUTO, alq_enable,
	- CTLTYPE_INT\|CTLFLAG_RW, 0, 0, sysctl_debug_ktr_alq_enable,
	- "I", "Enable KTR logging");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, 0,
	+ sysctl_debug_ktr_alq_enable, "I",
	+ "Enable KTR logging");
	#endif

	void
	Index: head/sys/kern/kern_ktrace.c
	===================================================================
	--- head/sys/kern/kern_ktrace.c
	+++ head/sys/kern/kern_ktrace.c
	@@ -131,7 +131,8 @@

	static STAILQ_HEAD(, ktr_request) ktr_free;

	-static SYSCTL_NODE(_kern, OID_AUTO, ktrace, CTLFLAG_RD, 0, "KTRACE options");
	+static SYSCTL_NODE(_kern, OID_AUTO, ktrace, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "KTRACE options");

	static u_int ktr_requestpool = KTRACE_REQUEST_POOL;
	TUNABLE_INT("kern.ktrace.request_pool", &ktr_requestpool);
	@@ -233,8 +234,9 @@
	return (ENOSPC);
	return (0);
	}
	-SYSCTL_PROC(_kern_ktrace, OID_AUTO, request_pool, CTLTYPE_UINT\|CTLFLAG_RW,
	- &ktr_requestpool, 0, sysctl_kern_ktrace_request_pool, "IU",
	+SYSCTL_PROC(_kern_ktrace, OID_AUTO, request_pool,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &ktr_requestpool, 0,
	+ sysctl_kern_ktrace_request_pool, "IU",
	"Pool buffer size for ktrace(1)");

	static u_int
	Index: head/sys/kern/kern_linker.c
	===================================================================
	--- head/sys/kern/kern_linker.c
	+++ head/sys/kern/kern_linker.c
	@@ -2260,5 +2260,7 @@
	return (SYSCTL_OUT(req, "", 1));
	}

	-SYSCTL_PROC(_kern, OID_AUTO, function_list, CTLTYPE_OPAQUE \| CTLFLAG_RD,
	- NULL, 0, sysctl_kern_function_list, "", "kernel function list");
	+SYSCTL_PROC(_kern, OID_AUTO, function_list,
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	+ sysctl_kern_function_list, "",
	+ "kernel function list");
	Index: head/sys/kern/kern_malloc.c
	===================================================================
	--- head/sys/kern/kern_malloc.c
	+++ head/sys/kern/kern_malloc.c
	@@ -232,7 +232,7 @@
	static time_t t_malloc_fail;

	#if defined(MALLOC_MAKE_FAILURES) \|\| (MALLOC_DEBUG_MAXZONES > 1)
	-static SYSCTL_NODE(_debug, OID_AUTO, malloc, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_debug, OID_AUTO, malloc, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Kernel malloc debugging options");
	#endif

	@@ -1266,8 +1266,9 @@
	return (error);
	}

	-SYSCTL_PROC(_kern, OID_AUTO, malloc_stats, CTLFLAG_RD\|CTLTYPE_STRUCT,
	- 0, 0, sysctl_kern_malloc_stats, "s,malloc_type_ustats",
	+SYSCTL_PROC(_kern, OID_AUTO, malloc_stats,
	+ CTLFLAG_RD \| CTLTYPE_STRUCT \| CTLFLAG_MPSAFE, 0, 0,
	+ sysctl_kern_malloc_stats, "s,malloc_type_ustats",
	"Return malloc types");

	SYSCTL_INT(_kern, OID_AUTO, malloc_count, CTLFLAG_RD, &kmemcount, 0,
	@@ -1471,6 +1472,8 @@
	return (error);
	}

	-SYSCTL_OID(_kern, OID_AUTO, mprof, CTLTYPE_STRING\|CTLFLAG_RD,
	- NULL, 0, sysctl_kern_mprof, "A", "Malloc Profiling");
	+SYSCTL_OID(_kern, OID_AUTO, mprof,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ sysctl_kern_mprof, "A",
	+ "Malloc Profiling");
	#endif /* MALLOC_PROFILE */
	Index: head/sys/kern/kern_mbuf.c
	===================================================================
	--- head/sys/kern/kern_mbuf.c
	+++ head/sys/kern/kern_mbuf.c
	@@ -193,8 +193,9 @@
	}
	return (error);
	}
	-SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbclusters, CTLTYPE_INT\|CTLFLAG_RW,
	-&nmbclusters, 0, sysctl_nmbclusters, "IU",
	+SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbclusters,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &nmbclusters, 0,
	+ sysctl_nmbclusters, "IU",
	"Maximum number of mbuf clusters allowed");

	static int
	@@ -214,8 +215,9 @@
	}
	return (error);
	}
	-SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbjumbop, CTLTYPE_INT\|CTLFLAG_RW,
	-&nmbjumbop, 0, sysctl_nmbjumbop, "IU",
	+SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbjumbop,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &nmbjumbop, 0,
	+ sysctl_nmbjumbop, "IU",
	"Maximum number of mbuf page size jumbo clusters allowed");

	static int
	@@ -235,8 +237,9 @@
	}
	return (error);
	}
	-SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbjumbo9, CTLTYPE_INT\|CTLFLAG_RW,
	-&nmbjumbo9, 0, sysctl_nmbjumbo9, "IU",
	+SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbjumbo9,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &nmbjumbo9, 0,
	+ sysctl_nmbjumbo9, "IU",
	"Maximum number of mbuf 9k jumbo clusters allowed");

	static int
	@@ -256,8 +259,9 @@
	}
	return (error);
	}
	-SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbjumbo16, CTLTYPE_INT\|CTLFLAG_RW,
	-&nmbjumbo16, 0, sysctl_nmbjumbo16, "IU",
	+SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbjumbo16,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &nmbjumbo16, 0,
	+ sysctl_nmbjumbo16, "IU",
	"Maximum number of mbuf 16k jumbo clusters allowed");

	static int
	@@ -277,8 +281,9 @@
	}
	return (error);
	}
	-SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbufs, CTLTYPE_INT\|CTLFLAG_RW,
	-&nmbufs, 0, sysctl_nmbufs, "IU",
	+SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbufs,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &nmbufs, 0, sysctl_nmbufs, "IU",
	"Maximum number of mbufs allowed");

	/*
	Index: head/sys/kern/kern_mib.c
	===================================================================
	--- head/sys/kern/kern_mib.c
	+++ head/sys/kern/kern_mib.c
	@@ -60,38 +60,38 @@
	#include <sys/systm.h>
	#include <sys/unistd.h>

	-SYSCTL_ROOT_NODE(0, sysctl, CTLFLAG_RW, 0,
	- "Sysctl internal magic");
	-SYSCTL_ROOT_NODE(CTL_KERN, kern, CTLFLAG_RW\|CTLFLAG_CAPRD, 0,
	- "High kernel, proc, limits &c");
	-SYSCTL_ROOT_NODE(CTL_VM, vm, CTLFLAG_RW, 0,
	- "Virtual memory");
	-SYSCTL_ROOT_NODE(CTL_VFS, vfs, CTLFLAG_RW, 0,
	- "File system");
	-SYSCTL_ROOT_NODE(CTL_NET, net, CTLFLAG_RW, 0,
	- "Network, (see socket.h)");
	-SYSCTL_ROOT_NODE(CTL_DEBUG, debug, CTLFLAG_RW, 0,
	- "Debugging");
	-SYSCTL_NODE(_debug, OID_AUTO, sizeof, CTLFLAG_RW, 0,
	- "Sizeof various things");
	-SYSCTL_ROOT_NODE(CTL_HW, hw, CTLFLAG_RW, 0,
	- "hardware");
	-SYSCTL_ROOT_NODE(CTL_MACHDEP, machdep, CTLFLAG_RW, 0,
	- "machine dependent");
	-SYSCTL_NODE(_machdep, OID_AUTO, mitigations, CTLFLAG_RW, 0,
	- "Machine dependent platform mitigations.");
	-SYSCTL_ROOT_NODE(CTL_USER, user, CTLFLAG_RW, 0,
	- "user-level");
	-SYSCTL_ROOT_NODE(CTL_P1003_1B, p1003_1b, CTLFLAG_RW, 0,
	- "p1003_1b, (see p1003_1b.h)");
	+SYSCTL_ROOT_NODE(0, sysctl, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Sysctl internal magic");
	+SYSCTL_ROOT_NODE(CTL_KERN, kern, CTLFLAG_RW \| CTLFLAG_CAPRD \| CTLFLAG_MPSAFE, 0,
	+ "High kernel, proc, limits &c");
	+SYSCTL_ROOT_NODE(CTL_VM, vm, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Virtual memory");
	+SYSCTL_ROOT_NODE(CTL_VFS, vfs, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "File system");
	+SYSCTL_ROOT_NODE(CTL_NET, net, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Network, (see socket.h)");
	+SYSCTL_ROOT_NODE(CTL_DEBUG, debug, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Debugging");
	+SYSCTL_NODE(_debug, OID_AUTO, sizeof, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Sizeof various things");
	+SYSCTL_ROOT_NODE(CTL_HW, hw, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "hardware");
	+SYSCTL_ROOT_NODE(CTL_MACHDEP, machdep, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "machine dependent");
	+SYSCTL_NODE(_machdep, OID_AUTO, mitigations, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Machine dependent platform mitigations.");
	+SYSCTL_ROOT_NODE(CTL_USER, user, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "user-level");
	+SYSCTL_ROOT_NODE(CTL_P1003_1B, p1003_1b, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "p1003_1b, (see p1003_1b.h)");

	-SYSCTL_ROOT_NODE(OID_AUTO, compat, CTLFLAG_RW, 0,
	- "Compatibility code");
	-SYSCTL_ROOT_NODE(OID_AUTO, security, CTLFLAG_RW, 0,
	- "Security");
	+SYSCTL_ROOT_NODE(OID_AUTO, compat, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Compatibility code");
	+SYSCTL_ROOT_NODE(OID_AUTO, security, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Security");
	#ifdef REGRESSION
	-SYSCTL_ROOT_NODE(OID_AUTO, regression, CTLFLAG_RW, 0,
	- "Regression test MIB");
	+SYSCTL_ROOT_NODE(OID_AUTO, regression, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Regression test MIB");
	#endif

	SYSCTL_STRING(_kern, OID_AUTO, ident, CTLFLAG_RD\|CTLFLAG_MPSAFE,
	@@ -182,8 +182,9 @@
	val = ctob(p);
	return (sysctl_handle_long(oidp, &val, 0, req));
	}
	-SYSCTL_PROC(_hw, HW_PHYSMEM, physmem, CTLTYPE_ULONG \| CTLFLAG_RD,
	- 0, 0, sysctl_hw_physmem, "LU",
	+SYSCTL_PROC(_hw, HW_PHYSMEM, physmem,
	+ CTLTYPE_ULONG \| CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, 0,
	+ sysctl_hw_physmem, "LU",
	"Amount of physical memory (in bytes)");

	static int
	@@ -197,8 +198,9 @@
	val = ctob(p);
	return (sysctl_handle_long(oidp, &val, 0, req));
	}
	-SYSCTL_PROC(_hw, HW_REALMEM, realmem, CTLTYPE_ULONG \| CTLFLAG_RD,
	- 0, 0, sysctl_hw_realmem, "LU",
	+SYSCTL_PROC(_hw, HW_REALMEM, realmem,
	+ CTLTYPE_ULONG \| CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, 0,
	+ sysctl_hw_realmem, "LU",
	"Amount of memory (in bytes) reported by the firmware");

	static int
	@@ -213,8 +215,9 @@
	val = ctob(p);
	return (sysctl_handle_long(oidp, &val, 0, req));
	}
	-SYSCTL_PROC(_hw, HW_USERMEM, usermem, CTLTYPE_ULONG \| CTLFLAG_RD,
	- 0, 0, sysctl_hw_usermem, "LU",
	+SYSCTL_PROC(_hw, HW_USERMEM, usermem,
	+ CTLTYPE_ULONG \| CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, 0,
	+ sysctl_hw_usermem, "LU",
	"Amount of memory (in bytes) which is not wired");

	SYSCTL_LONG(_hw, OID_AUTO, availpages, CTLFLAG_RD, &physmem, 0,
	@@ -244,8 +247,10 @@
	error = SYSCTL_OUT(req, pagesizes, sizeof(pagesizes));
	return (error);
	}
	-SYSCTL_PROC(_hw, OID_AUTO, pagesizes, CTLTYPE_ULONG \| CTLFLAG_RD,
	- NULL, 0, sysctl_hw_pagesizes, "LU", "Supported page sizes");
	+SYSCTL_PROC(_hw, OID_AUTO, pagesizes,
	+ CTLTYPE_ULONG \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	+ sysctl_hw_pagesizes, "LU",
	+ "Supported page sizes");

	#ifdef SCTL_MASK32
	int adaptive_machine_arch = 1;
	@@ -393,8 +398,9 @@
	}

	SYSCTL_PROC(_kern, KERN_SECURELVL, securelevel,
	- CTLTYPE_INT\|CTLFLAG_RW\|CTLFLAG_PRISON, 0, 0, sysctl_kern_securelvl,
	- "I", "Current secure level");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_PRISON \| CTLFLAG_MPSAFE, 0, 0,
	+ sysctl_kern_securelvl, "I",
	+ "Current secure level");

	#ifdef INCLUDE_CONFIG_FILE
	/* Actual kernel configuration options. */
	@@ -531,7 +537,8 @@
	CTLTYPE_STRING \| CTLFLAG_CAPRD \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	NULL, 0, sysctl_build_id, "A", "Operating system build-id");

	-SYSCTL_NODE(_kern, OID_AUTO, features, CTLFLAG_RD, 0, "Kernel Features");
	+SYSCTL_NODE(_kern, OID_AUTO, features, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Kernel Features");

	#ifdef COMPAT_FREEBSD4
	FEATURE(compat_freebsd4, "Compatible with FreeBSD 4");
	Index: head/sys/kern/kern_mutex.c
	===================================================================
	--- head/sys/kern/kern_mutex.c
	+++ head/sys/kern/kern_mutex.c
	@@ -141,7 +141,8 @@

	#ifdef ADAPTIVE_MUTEXES
	#ifdef MUTEX_CUSTOM_BACKOFF
	-static SYSCTL_NODE(_debug, OID_AUTO, mtx, CTLFLAG_RD, NULL, "mtx debugging");
	+static SYSCTL_NODE(_debug, OID_AUTO, mtx, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "mtx debugging");

	static struct lock_delay_config __read_frequently mtx_delay;

	@@ -157,7 +158,8 @@
	#endif

	#ifdef MUTEX_SPIN_CUSTOM_BACKOFF
	-static SYSCTL_NODE(_debug, OID_AUTO, mtx_spin, CTLFLAG_RD, NULL,
	+static SYSCTL_NODE(_debug, OID_AUTO, mtx_spin,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"mtx spin debugging");

	static struct lock_delay_config __read_frequently mtx_spin_delay;
	Index: head/sys/kern/kern_ntptime.c
	===================================================================
	--- head/sys/kern/kern_ntptime.c
	+++ head/sys/kern/kern_ntptime.c
	@@ -309,7 +309,8 @@
	return (sysctl_handle_opaque(oidp, &ntv, sizeof(ntv), req));
	}

	-SYSCTL_NODE(_kern, OID_AUTO, ntp_pll, CTLFLAG_RW, 0, "");
	+SYSCTL_NODE(_kern, OID_AUTO, ntp_pll, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "");
	SYSCTL_PROC(_kern_ntp_pll, OID_AUTO, gettime, CTLTYPE_OPAQUE \| CTLFLAG_RD \|
	CTLFLAG_MPSAFE, 0, sizeof(struct ntptimeval) , ntp_sysctl, "S,ntptimeval",
	"");
	Index: head/sys/kern/kern_pmc.c
	===================================================================
	--- head/sys/kern/kern_pmc.c
	+++ head/sys/kern/kern_pmc.c
	@@ -108,7 +108,8 @@
	* PMC Soft use a global table to store registered events.
	*/

	-SYSCTL_NODE(_kern, OID_AUTO, hwpmc, CTLFLAG_RW, 0, "HWPMC parameters");
	+SYSCTL_NODE(_kern, OID_AUTO, hwpmc, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "HWPMC parameters");

	static int pmc_softevents = 16;
	SYSCTL_INT(_kern_hwpmc, OID_AUTO, softevents, CTLFLAG_RDTUN,
	Index: head/sys/kern/kern_poll.c
	===================================================================
	--- head/sys/kern/kern_poll.c
	+++ head/sys/kern/kern_poll.c
	@@ -101,8 +101,8 @@
	static uint32_t poll_burst_max = 150; /* good for 100Mbit net and HZ=1000 */
	static uint32_t poll_each_burst = 5;

	-static SYSCTL_NODE(_kern, OID_AUTO, polling, CTLFLAG_RW, 0,
	- "Device polling parameters");
	+static SYSCTL_NODE(_kern, OID_AUTO, polling, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Device polling parameters");

	SYSCTL_UINT(_kern_polling, OID_AUTO, burst, CTLFLAG_RD,
	&poll_burst, 0, "Current polling burst size");
	@@ -132,8 +132,10 @@

	return (0);
	}
	-SYSCTL_PROC(_kern_polling, OID_AUTO, burst_max, CTLTYPE_UINT \| CTLFLAG_RW,
	- 0, sizeof(uint32_t), poll_burst_max_sysctl, "I", "Max Polling burst size");
	+SYSCTL_PROC(_kern_polling, OID_AUTO, burst_max,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, sizeof(uint32_t),
	+ poll_burst_max_sysctl, "I",
	+ "Max Polling burst size");

	static int poll_each_burst_sysctl(SYSCTL_HANDLER_ARGS)
	{
	@@ -156,9 +158,10 @@

	return (0);
	}
	-SYSCTL_PROC(_kern_polling, OID_AUTO, each_burst, CTLTYPE_UINT \| CTLFLAG_RW,
	- 0, sizeof(uint32_t), poll_each_burst_sysctl, "I",
	- "Max size of each burst");
	+SYSCTL_PROC(_kern_polling, OID_AUTO, each_burst,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, sizeof(uint32_t),
	+ poll_each_burst_sysctl, "I",
	+ "Max size of each burst");

	static uint32_t poll_in_idle_loop=0; /* do we poll in idle loop ? */
	SYSCTL_UINT(_kern_polling, OID_AUTO, idle_poll, CTLFLAG_RW,
	@@ -182,9 +185,10 @@

	return (0);
	}
	-SYSCTL_PROC(_kern_polling, OID_AUTO, user_frac, CTLTYPE_UINT \| CTLFLAG_RW,
	- 0, sizeof(uint32_t), user_frac_sysctl, "I",
	- "Desired user fraction of cpu time");
	+SYSCTL_PROC(_kern_polling, OID_AUTO, user_frac,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, sizeof(uint32_t),
	+ user_frac_sysctl, "I",
	+ "Desired user fraction of cpu time");

	static uint32_t reg_frac_count = 0;
	static uint32_t reg_frac = 20 ;
	@@ -207,9 +211,10 @@

	return (0);
	}
	-SYSCTL_PROC(_kern_polling, OID_AUTO, reg_frac, CTLTYPE_UINT \| CTLFLAG_RW,
	- 0, sizeof(uint32_t), reg_frac_sysctl, "I",
	- "Every this many cycles check registers");
	+SYSCTL_PROC(_kern_polling, OID_AUTO, reg_frac,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, sizeof(uint32_t),
	+ reg_frac_sysctl, "I",
	+ "Every this many cycles check registers");

	static uint32_t short_ticks;
	SYSCTL_UINT(_kern_polling, OID_AUTO, short_ticks, CTLFLAG_RD,
	Index: head/sys/kern/kern_proc.c
	===================================================================
	--- head/sys/kern/kern_proc.c
	+++ head/sys/kern/kern_proc.c
	@@ -3033,7 +3033,8 @@
	return (error);
	}

	-SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD, 0, "Process table");
	+SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Process table");

	SYSCTL_PROC(_kern_proc, KERN_PROC_ALL, all, CTLFLAG_RD\|CTLTYPE_STRUCT\|
	CTLFLAG_MPSAFE, 0, 0, sysctl_kern_proc, "S,proc",
	Index: head/sys/kern/kern_prot.c
	===================================================================
	--- head/sys/kern/kern_prot.c
	+++ head/sys/kern/kern_prot.c
	@@ -84,7 +84,8 @@

	static MALLOC_DEFINE(M_CRED, "cred", "credentials");

	-SYSCTL_NODE(_security, OID_AUTO, bsd, CTLFLAG_RW, 0, "BSD security policy");
	+SYSCTL_NODE(_security, OID_AUTO, bsd, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "BSD security policy");

	static void crsetgroups_locked(struct ucred *cr, int ngrp,
	gid_t *groups);
	@@ -1678,8 +1679,8 @@
	* systems.
	*/
	SYSCTL_PROC(_security_bsd, OID_AUTO, unprivileged_proc_debug,
	- CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_PRISON \| CTLFLAG_SECURE, 0, 0,
	- sysctl_unprivileged_proc_debug, "I",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_PRISON \| CTLFLAG_SECURE \|
	+ CTLFLAG_MPSAFE, 0, 0, sysctl_unprivileged_proc_debug, "I",
	"Unprivileged processes may use process debugging facilities");

	/*-
	Index: head/sys/kern/kern_racct.c
	===================================================================
	--- head/sys/kern/kern_racct.c
	+++ head/sys/kern/kern_racct.c
	@@ -79,7 +79,8 @@
	bool __read_frequently racct_enable = true;
	#endif

	-SYSCTL_NODE(_kern, OID_AUTO, racct, CTLFLAG_RW, 0, "Resource Accounting");
	+SYSCTL_NODE(_kern, OID_AUTO, racct, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Resource Accounting");
	SYSCTL_BOOL(_kern_racct, OID_AUTO, enable, CTLFLAG_RDTUN, &racct_enable,
	0, "Enable RACCT/RCTL");
	SYSCTL_UINT(_kern_racct, OID_AUTO, pcpu_threshold, CTLFLAG_RW, &pcpu_threshold,
	Index: head/sys/kern/kern_rwlock.c
	===================================================================
	--- head/sys/kern/kern_rwlock.c
	+++ head/sys/kern/kern_rwlock.c
	@@ -97,7 +97,8 @@
	#ifdef RWLOCK_CUSTOM_BACKOFF
	static u_short __read_frequently rowner_retries;
	static u_short __read_frequently rowner_loops;
	-static SYSCTL_NODE(_debug, OID_AUTO, rwlock, CTLFLAG_RD, NULL,
	+static SYSCTL_NODE(_debug, OID_AUTO, rwlock,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"rwlock debugging");
	SYSCTL_U16(_debug_rwlock, OID_AUTO, retry, CTLFLAG_RW, &rowner_retries, 0, "");
	SYSCTL_U16(_debug_rwlock, OID_AUTO, loops, CTLFLAG_RW, &rowner_loops, 0, "");
	Index: head/sys/kern/kern_sendfile.c
	===================================================================
	--- head/sys/kern/kern_sendfile.c
	+++ head/sys/kern/kern_sendfile.c
	@@ -126,8 +126,10 @@
	COUNTER_ARRAY_ZERO(sfstat, sizeof(s) / sizeof(uint64_t));
	return (SYSCTL_OUT(req, &s, sizeof(s)));
	}
	-SYSCTL_PROC(_kern_ipc, OID_AUTO, sfstat, CTLTYPE_OPAQUE \| CTLFLAG_RW,
	- NULL, 0, sfstat_sysctl, "I", "sendfile statistics");
	+SYSCTL_PROC(_kern_ipc, OID_AUTO, sfstat,
	+ CTLTYPE_OPAQUE \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ sfstat_sysctl, "I",
	+ "sendfile statistics");

	static void
	sendfile_free_mext(struct mbuf *m)
	Index: head/sys/kern/kern_shutdown.c
	===================================================================
	--- head/sys/kern/kern_shutdown.c
	+++ head/sys/kern/kern_shutdown.c
	@@ -158,7 +158,7 @@
	SYSCTL_BOOL(_kern, OID_AUTO, powercycle_on_panic, CTLFLAG_RWTUN,
	&powercycle_on_panic, 0, "Do a power cycle instead of a reboot on a panic");

	-static SYSCTL_NODE(_kern, OID_AUTO, shutdown, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern, OID_AUTO, shutdown, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Shutdown environment");

	#ifndef DIAGNOSTIC
	@@ -687,7 +687,8 @@
	static int kassert_suppress_in_panic = 0;
	static int kassert_warnings = 0;

	-SYSCTL_NODE(_debug, OID_AUTO, kassert, CTLFLAG_RW, NULL, "kassert options");
	+SYSCTL_NODE(_debug, OID_AUTO, kassert, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ "kassert options");

	#ifdef KASSERT_PANIC_OPTIONAL
	#define KASSERT_RWTUN CTLFLAG_RWTUN
	@@ -734,8 +735,9 @@
	static int kassert_sysctl_kassert(SYSCTL_HANDLER_ARGS);

	SYSCTL_PROC(_debug_kassert, OID_AUTO, kassert,
	- CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE, NULL, 0,
	- kassert_sysctl_kassert, "I", "set to trigger a test kassert");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ kassert_sysctl_kassert, "I",
	+ "set to trigger a test kassert");

	static int
	kassert_sysctl_kassert(SYSCTL_HANDLER_ARGS)
	@@ -1011,8 +1013,9 @@
	sbuf_delete(&sb);
	return (error);
	}
	-SYSCTL_PROC(_kern_shutdown, OID_AUTO, dumpdevname, CTLTYPE_STRING \| CTLFLAG_RD,
	- &dumper_configs, 0, dumpdevname_sysctl_handler, "A",
	+SYSCTL_PROC(_kern_shutdown, OID_AUTO, dumpdevname,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, &dumper_configs, 0,
	+ dumpdevname_sysctl_handler, "A",
	"Device(s) for kernel dumps");

	static int _dump_append(struct dumperinfo di, void virtual,
	Index: head/sys/kern/kern_sig.c
	===================================================================
	--- head/sys/kern/kern_sig.c
	+++ head/sys/kern/kern_sig.c
	@@ -134,7 +134,7 @@
	SYSCTL_INT(_kern, OID_AUTO, forcesigexit, CTLFLAG_RW,
	&kern_forcesigexit, 0, "Force trap signal to be handled");

	-static SYSCTL_NODE(_kern, OID_AUTO, sigqueue, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern, OID_AUTO, sigqueue, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"POSIX real time signal");

	static int max_pending_per_proc = 128;
	@@ -3351,9 +3351,10 @@
	num_cores = new_val;
	return (0);
	}
	-SYSCTL_PROC(_debug, OID_AUTO, ncores, CTLTYPE_INT\|CTLFLAG_RW,
	- 0, sizeof(int), sysctl_debug_num_cores_check, "I",
	- "Maximum number of generated process corefiles while using index format");
	+SYSCTL_PROC(_debug, OID_AUTO, ncores,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_debug_num_cores_check, "I",
	+ "Maximum number of generated process corefiles while using index format");

	#define GZIP_SUFFIX ".gz"
	#define ZSTD_SUFFIX ".zst"
	@@ -3374,8 +3375,9 @@
	compress_user_cores = val;
	return (error);
	}
	-SYSCTL_PROC(_kern, OID_AUTO, compress_user_cores, CTLTYPE_INT \| CTLFLAG_RWTUN,
	- 0, sizeof(int), sysctl_compress_user_cores, "I",
	+SYSCTL_PROC(_kern, OID_AUTO, compress_user_cores,
	+ CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_compress_user_cores, "I",
	"Enable compression of user corefiles ("
	__XSTRING(COMPRESS_GZIP) " = gzip, "
	__XSTRING(COMPRESS_ZSTD) " = zstd)");
	Index: head/sys/kern/kern_switch.c
	===================================================================
	--- head/sys/kern/kern_switch.c
	+++ head/sys/kern/kern_switch.c
	@@ -80,7 +80,8 @@
	* with SCHED_STAT_DEFINE().
	*/
	#ifdef SCHED_STATS
	-SYSCTL_NODE(_kern_sched, OID_AUTO, stats, CTLFLAG_RW, 0, "switch stats");
	+SYSCTL_NODE(_kern_sched, OID_AUTO, stats, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "switch stats");

	/* Switch reasons from mi_switch(). */
	DPCPU_DEFINE(long, sched_switch_stats[SWT_COUNT]);
	@@ -141,8 +142,10 @@
	return (0);
	}

	-SYSCTL_PROC(_kern_sched_stats, OID_AUTO, reset, CTLTYPE_INT \| CTLFLAG_WR, NULL,
	- 0, sysctl_stats_reset, "I", "Reset scheduler statistics");
	+SYSCTL_PROC(_kern_sched_stats, OID_AUTO, reset,
	+ CTLTYPE_INT \| CTLFLAG_WR \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ sysctl_stats_reset, "I",
	+ "Reset scheduler statistics");
	#endif

	/************************************************************************
	Index: head/sys/kern/kern_sx.c
	===================================================================
	--- head/sys/kern/kern_sx.c
	+++ head/sys/kern/kern_sx.c
	@@ -146,7 +146,8 @@
	#ifdef SX_CUSTOM_BACKOFF
	static u_short __read_frequently asx_retries;
	static u_short __read_frequently asx_loops;
	-static SYSCTL_NODE(_debug, OID_AUTO, sx, CTLFLAG_RD, NULL, "sxlock debugging");
	+static SYSCTL_NODE(_debug, OID_AUTO, sx, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "sxlock debugging");
	SYSCTL_U16(_debug_sx, OID_AUTO, retries, CTLFLAG_RW, &asx_retries, 0, "");
	SYSCTL_U16(_debug_sx, OID_AUTO, loops, CTLFLAG_RW, &asx_loops, 0, "");

	Index: head/sys/kern/kern_tc.c
	===================================================================
	--- head/sys/kern/kern_tc.c
	+++ head/sys/kern/kern_tc.c
	@@ -104,11 +104,16 @@
	volatile time_t time_uptime = 1;

	static int sysctl_kern_boottime(SYSCTL_HANDLER_ARGS);
	-SYSCTL_PROC(_kern, KERN_BOOTTIME, boottime, CTLTYPE_STRUCT\|CTLFLAG_RD,
	- NULL, 0, sysctl_kern_boottime, "S,timeval", "System boottime");
	+SYSCTL_PROC(_kern, KERN_BOOTTIME, boottime,
	+ CTLTYPE_STRUCT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	+ sysctl_kern_boottime, "S,timeval",
	+ "System boottime");

	-SYSCTL_NODE(_kern, OID_AUTO, timecounter, CTLFLAG_RW, 0, "");
	-static SYSCTL_NODE(_kern_timecounter, OID_AUTO, tc, CTLFLAG_RW, 0, "");
	+SYSCTL_NODE(_kern, OID_AUTO, timecounter, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "");
	+static SYSCTL_NODE(_kern_timecounter, OID_AUTO, tc,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "");

	static int timestepwarnings;
	SYSCTL_INT(_kern_timecounter, OID_AUTO, stepwarnings, CTLFLAG_RW,
	@@ -1169,16 +1174,19 @@
	*/
	tc_root = SYSCTL_ADD_NODE_WITH_LABEL(NULL,
	SYSCTL_STATIC_CHILDREN(_kern_timecounter_tc), OID_AUTO, tc->tc_name,
	- CTLFLAG_RW, 0, "timecounter description", "timecounter");
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "timecounter description", "timecounter");
	SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(tc_root), OID_AUTO,
	"mask", CTLFLAG_RD, &(tc->tc_counter_mask), 0,
	"mask for implemented bits");
	SYSCTL_ADD_PROC(NULL, SYSCTL_CHILDREN(tc_root), OID_AUTO,
	- "counter", CTLTYPE_UINT \| CTLFLAG_RD, tc, sizeof(*tc),
	- sysctl_kern_timecounter_get, "IU", "current timecounter value");
	+ "counter", CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, tc,
	+ sizeof(*tc), sysctl_kern_timecounter_get, "IU",
	+ "current timecounter value");
	SYSCTL_ADD_PROC(NULL, SYSCTL_CHILDREN(tc_root), OID_AUTO,
	- "frequency", CTLTYPE_U64 \| CTLFLAG_RD, tc, sizeof(*tc),
	- sysctl_kern_timecounter_freq, "QU", "timecounter frequency");
	+ "frequency", CTLTYPE_U64 \| CTLFLAG_RD \| CTLFLAG_MPSAFE, tc,
	+ sizeof(*tc), sysctl_kern_timecounter_freq, "QU",
	+ "timecounter frequency");
	SYSCTL_ADD_INT(NULL, SYSCTL_CHILDREN(tc_root), OID_AUTO,
	"quality", CTLFLAG_RD, &(tc->tc_quality), 0,
	"goodness of time counter");
	@@ -1478,8 +1486,9 @@
	return (EINVAL);
	}

	-SYSCTL_PROC(_kern_timecounter, OID_AUTO, hardware, CTLTYPE_STRING \| CTLFLAG_RW,
	- 0, 0, sysctl_kern_timecounter_hardware, "A",
	+SYSCTL_PROC(_kern_timecounter, OID_AUTO, hardware,
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, 0,
	+ sysctl_kern_timecounter_hardware, "A",
	"Timecounter hardware selected");

	/* Report the available timecounter hardware. */
	@@ -1501,8 +1510,10 @@
	return (error);
	}

	-SYSCTL_PROC(_kern_timecounter, OID_AUTO, choice, CTLTYPE_STRING \| CTLFLAG_RD,
	- 0, 0, sysctl_kern_timecounter_choice, "A", "Timecounter hardware detected");
	+SYSCTL_PROC(_kern_timecounter, OID_AUTO, choice,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, 0,
	+ sysctl_kern_timecounter_choice, "A",
	+ "Timecounter hardware detected");

	/*
	* RFC 2783 PPS-API implementation.
	Index: head/sys/kern/kern_thr.c
	===================================================================
	--- head/sys/kern/kern_thr.c
	+++ head/sys/kern/kern_thr.c
	@@ -64,7 +64,7 @@

	#include <security/audit/audit.h>

	-static SYSCTL_NODE(_kern, OID_AUTO, threads, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern, OID_AUTO, threads, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"thread allocation");

	static int max_threads_per_proc = 1500;
	Index: head/sys/kern/kern_umtx.c
	===================================================================
	--- head/sys/kern/kern_umtx.c
	+++ head/sys/kern/kern_umtx.c
	@@ -247,7 +247,8 @@
	static MALLOC_DEFINE(M_UMTX, "umtx", "UMTX queue memory");
	static int umtx_pi_allocated;

	-static SYSCTL_NODE(_debug, OID_AUTO, umtx, CTLFLAG_RW, 0, "umtx debug");
	+static SYSCTL_NODE(_debug, OID_AUTO, umtx, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "umtx debug");
	SYSCTL_INT(_debug_umtx, OID_AUTO, umtx_pi_allocated, CTLFLAG_RD,
	&umtx_pi_allocated, 0, "Allocated umtx_pi");
	static int umtx_verbose_rb = 1;
	@@ -258,7 +259,8 @@
	#ifdef UMTX_PROFILING
	static long max_length;
	SYSCTL_LONG(_debug_umtx, OID_AUTO, max_length, CTLFLAG_RD, &max_length, 0, "max_length");
	-static SYSCTL_NODE(_debug_umtx, OID_AUTO, chains, CTLFLAG_RD, 0, "umtx chain stats");
	+static SYSCTL_NODE(_debug_umtx, OID_AUTO, chains, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "umtx chain stats");
	#endif

	static void abs_timeout_update(struct abs_timeout *timo);
	@@ -302,7 +304,8 @@
	snprintf(chain_name, sizeof(chain_name), "%d", i);
	chain_oid = SYSCTL_ADD_NODE(NULL,
	SYSCTL_STATIC_CHILDREN(_debug_umtx_chains), OID_AUTO,
	- chain_name, CTLFLAG_RD, NULL, "umtx hash stats");
	+ chain_name, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "umtx hash stats");
	SYSCTL_ADD_INT(NULL, SYSCTL_CHILDREN(chain_oid), OID_AUTO,
	"max_length0", CTLFLAG_RD, &umtxq_chains[0][i].max_length, 0, NULL);
	SYSCTL_ADD_INT(NULL, SYSCTL_CHILDREN(chain_oid), OID_AUTO,
	@@ -416,10 +419,12 @@

	SYSCTL_PROC(_debug_umtx_chains, OID_AUTO, clear,
	CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, 0,
	- sysctl_debug_umtx_chains_clear, "I", "Clear umtx chains statistics");
	+ sysctl_debug_umtx_chains_clear, "I",
	+ "Clear umtx chains statistics");
	SYSCTL_PROC(_debug_umtx_chains, OID_AUTO, peaks,
	CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, 0,
	- sysctl_debug_umtx_chains_peaks, "A", "Highest peaks in chains max length");
	+ sysctl_debug_umtx_chains_peaks, "A",
	+ "Highest peaks in chains max length");
	#endif

	static void
	Index: head/sys/kern/posix4_mib.c
	===================================================================
	--- head/sys/kern/posix4_mib.c
	+++ head/sys/kern/posix4_mib.c
	@@ -62,7 +62,8 @@
	SYSCTL_INT(_p1003_1b, num, name, CTLFLAG_RD \| CTLFLAG_CAPRD, \
	facility + num - 1, 0, "");
	#define P1B_SYSCTL_RW(num, name) \
	- SYSCTL_PROC(_p1003_1b, num, name, CTLTYPE_INT \| CTLFLAG_RW, NULL, num, \
	+ SYSCTL_PROC(_p1003_1b, num, name, \
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, num, \
	p31b_sysctl_proc, "I", "");

	#else
	@@ -75,7 +76,8 @@
	#define P1B_SYSCTL_RW(num, name) \
	SYSCTL_PROC(_p1003_1b, OID_AUTO, name, CTLTYPE_INT \| CTLFLAG_RW, NULL, \
	num, p31b_sysctl_proc, "I", "");
	-SYSCTL_NODE(_kern, OID_AUTO, p1003_1b, CTLFLAG_RW, 0, "P1003.1B");
	+SYSCTL_NODE(_kern, OID_AUTO, p1003_1b, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "P1003.1B");

	#endif

	Index: head/sys/kern/sched_4bsd.c
	===================================================================
	--- head/sys/kern/sched_4bsd.c
	+++ head/sys/kern/sched_4bsd.c
	@@ -209,18 +209,21 @@
	return (0);
	}

	-SYSCTL_NODE(_kern, OID_AUTO, sched, CTLFLAG_RD, 0, "Scheduler");
	+SYSCTL_NODE(_kern, OID_AUTO, sched, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Scheduler");

	SYSCTL_STRING(_kern_sched, OID_AUTO, name, CTLFLAG_RD, "4BSD", 0,
	"Scheduler name");
	-SYSCTL_PROC(_kern_sched, OID_AUTO, quantum, CTLTYPE_INT \| CTLFLAG_RW,
	- NULL, 0, sysctl_kern_quantum, "I",
	+SYSCTL_PROC(_kern_sched, OID_AUTO, quantum,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL, 0,
	+ sysctl_kern_quantum, "I",
	"Quantum for timeshare threads in microseconds");
	SYSCTL_INT(_kern_sched, OID_AUTO, slice, CTLFLAG_RW, &sched_slice, 0,
	"Quantum for timeshare threads in stathz ticks");
	#ifdef SMP
	/* Enable forwarding of wakeups to all other cpus */
	-static SYSCTL_NODE(_kern_sched, OID_AUTO, ipiwakeup, CTLFLAG_RD, NULL,
	+static SYSCTL_NODE(_kern_sched, OID_AUTO, ipiwakeup,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"Kernel SMP");

	static int runq_fuzz = 1;
	Index: head/sys/kern/sched_ule.c
	===================================================================
	--- head/sys/kern/sched_ule.c
	+++ head/sys/kern/sched_ule.c
	@@ -3083,11 +3083,13 @@
	return (0);
	}

	-SYSCTL_NODE(_kern, OID_AUTO, sched, CTLFLAG_RW, 0, "Scheduler");
	+SYSCTL_NODE(_kern, OID_AUTO, sched, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Scheduler");
	SYSCTL_STRING(_kern_sched, OID_AUTO, name, CTLFLAG_RD, "ULE", 0,
	"Scheduler name");
	-SYSCTL_PROC(_kern_sched, OID_AUTO, quantum, CTLTYPE_INT \| CTLFLAG_RW,
	- NULL, 0, sysctl_kern_quantum, "I",
	+SYSCTL_PROC(_kern_sched, OID_AUTO, quantum,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL, 0,
	+ sysctl_kern_quantum, "I",
	"Quantum for timeshare threads in microseconds");
	SYSCTL_INT(_kern_sched, OID_AUTO, slice, CTLFLAG_RW, &sched_slice, 0,
	"Quantum for timeshare threads in stathz ticks");
	Index: head/sys/kern/subr_bus.c
	===================================================================
	--- head/sys/kern/subr_bus.c
	+++ head/sys/kern/subr_bus.c
	@@ -72,8 +72,10 @@

	#include <ddb/ddb.h>

	-SYSCTL_NODE(_hw, OID_AUTO, bus, CTLFLAG_RW, NULL, NULL);
	-SYSCTL_ROOT_NODE(OID_AUTO, dev, CTLFLAG_RW, NULL, NULL);
	+SYSCTL_NODE(_hw, OID_AUTO, bus, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ NULL);
	+SYSCTL_ROOT_NODE(OID_AUTO, dev, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ NULL);

	/*
	* Used to attach drivers to devclasses.
	@@ -238,9 +240,10 @@
	sysctl_ctx_init(&dc->sysctl_ctx);
	dc->sysctl_tree = SYSCTL_ADD_NODE(&dc->sysctl_ctx,
	SYSCTL_STATIC_CHILDREN(_dev), OID_AUTO, dc->name,
	- CTLFLAG_RD, NULL, "");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	SYSCTL_ADD_PROC(&dc->sysctl_ctx, SYSCTL_CHILDREN(dc->sysctl_tree),
	- OID_AUTO, "%parent", CTLTYPE_STRING \| CTLFLAG_RD,
	+ OID_AUTO, "%parent",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dc, DEVCLASS_SYSCTL_PARENT, devclass_sysctl_handler, "A",
	"parent class");
	}
	@@ -302,25 +305,29 @@
	dev->sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&dev->sysctl_ctx,
	SYSCTL_CHILDREN(dc->sysctl_tree), OID_AUTO,
	dev->nameunit + strlen(dc->name),
	- CTLFLAG_RD, NULL, "", "device_index");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "", "device_index");
	SYSCTL_ADD_PROC(&dev->sysctl_ctx, SYSCTL_CHILDREN(dev->sysctl_tree),
	- OID_AUTO, "%desc", CTLTYPE_STRING \| CTLFLAG_RD,
	+ OID_AUTO, "%desc", CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, DEVICE_SYSCTL_DESC, device_sysctl_handler, "A",
	"device description");
	SYSCTL_ADD_PROC(&dev->sysctl_ctx, SYSCTL_CHILDREN(dev->sysctl_tree),
	- OID_AUTO, "%driver", CTLTYPE_STRING \| CTLFLAG_RD,
	+ OID_AUTO, "%driver",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, DEVICE_SYSCTL_DRIVER, device_sysctl_handler, "A",
	"device driver name");
	SYSCTL_ADD_PROC(&dev->sysctl_ctx, SYSCTL_CHILDREN(dev->sysctl_tree),
	- OID_AUTO, "%location", CTLTYPE_STRING \| CTLFLAG_RD,
	+ OID_AUTO, "%location",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, DEVICE_SYSCTL_LOCATION, device_sysctl_handler, "A",
	"device location relative to parent");
	SYSCTL_ADD_PROC(&dev->sysctl_ctx, SYSCTL_CHILDREN(dev->sysctl_tree),
	- OID_AUTO, "%pnpinfo", CTLTYPE_STRING \| CTLFLAG_RD,
	+ OID_AUTO, "%pnpinfo",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, DEVICE_SYSCTL_PNPINFO, device_sysctl_handler, "A",
	"device identification");
	SYSCTL_ADD_PROC(&dev->sysctl_ctx, SYSCTL_CHILDREN(dev->sysctl_tree),
	- OID_AUTO, "%parent", CTLTYPE_STRING \| CTLFLAG_RD,
	+ OID_AUTO, "%parent",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	dev, DEVICE_SYSCTL_PARENT, device_sysctl_handler, "A",
	"parent device");
	if (bus_get_domain(dev, &domain) == 0)
	@@ -5456,7 +5463,7 @@

	return (SYSCTL_OUT(req, &ubus, sizeof(ubus)));
	}
	-SYSCTL_NODE(_hw_bus, OID_AUTO, info, CTLFLAG_RW, sysctl_bus,
	+SYSCTL_NODE(_hw_bus, OID_AUTO, info, CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sysctl_bus,
	"bus-related data");

	static int
	@@ -5531,7 +5538,8 @@
	return (error);
	}

	-SYSCTL_NODE(_hw_bus, OID_AUTO, devices, CTLFLAG_RD, sysctl_devices,
	+SYSCTL_NODE(_hw_bus, OID_AUTO, devices,
	+ CTLFLAG_RD \| CTLFLAG_NEEDGIANT, sysctl_devices,
	"system device tree");

	int
	Index: head/sys/kern/subr_devstat.c
	===================================================================
	--- head/sys/kern/subr_devstat.c
	+++ head/sys/kern/subr_devstat.c
	@@ -436,11 +436,13 @@
	* Sysctl entries for devstat. The first one is a node that all the rest
	* hang off of.
	*/
	-static SYSCTL_NODE(_kern, OID_AUTO, devstat, CTLFLAG_RD, NULL,
	+static SYSCTL_NODE(_kern, OID_AUTO, devstat, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"Device Statistics");

	-SYSCTL_PROC(_kern_devstat, OID_AUTO, all, CTLFLAG_RD\|CTLTYPE_OPAQUE,
	- NULL, 0, sysctl_devstat, "S,devstat", "All devices in the devstat list");
	+SYSCTL_PROC(_kern_devstat, OID_AUTO, all,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_MPSAFE, NULL, 0,
	+ sysctl_devstat, "S,devstat",
	+ "All devices in the devstat list");
	/*
	* Export the number of devices in the system so that userland utilities
	* can determine how much memory to allocate to hold all the devices.
	Index: head/sys/kern/subr_epoch.c
	===================================================================
	--- head/sys/kern/subr_epoch.c
	+++ head/sys/kern/subr_epoch.c
	@@ -92,8 +92,10 @@
	#define MAX_EPOCHS 64

	CTASSERT(sizeof(ck_epoch_entry_t) == sizeof(struct epoch_context));
	-SYSCTL_NODE(_kern, OID_AUTO, epoch, CTLFLAG_RW, 0, "epoch information");
	-SYSCTL_NODE(_kern_epoch, OID_AUTO, stats, CTLFLAG_RW, 0, "epoch stats");
	+SYSCTL_NODE(_kern, OID_AUTO, epoch, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "epoch information");
	+SYSCTL_NODE(_kern_epoch, OID_AUTO, stats, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "epoch stats");

	/* Stats. */
	static counter_u64_t block_count;
	Index: head/sys/kern/subr_kdb.c
	===================================================================
	--- head/sys/kern/subr_kdb.c
	+++ head/sys/kern/subr_kdb.c
	@@ -86,33 +86,43 @@
	static int kdb_sysctl_trap_code(SYSCTL_HANDLER_ARGS);
	static int kdb_sysctl_stack_overflow(SYSCTL_HANDLER_ARGS);

	-static SYSCTL_NODE(_debug, OID_AUTO, kdb, CTLFLAG_RW, NULL, "KDB nodes");
	+static SYSCTL_NODE(_debug, OID_AUTO, kdb, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ "KDB nodes");

	-SYSCTL_PROC(_debug_kdb, OID_AUTO, available, CTLTYPE_STRING \| CTLFLAG_RD, NULL,
	- 0, kdb_sysctl_available, "A", "list of available KDB backends");
	+SYSCTL_PROC(_debug_kdb, OID_AUTO, available,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	+ kdb_sysctl_available, "A",
	+ "list of available KDB backends");

	-SYSCTL_PROC(_debug_kdb, OID_AUTO, current, CTLTYPE_STRING \| CTLFLAG_RW, NULL,
	- 0, kdb_sysctl_current, "A", "currently selected KDB backend");
	+SYSCTL_PROC(_debug_kdb, OID_AUTO, current,
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL, 0,
	+ kdb_sysctl_current, "A",
	+ "currently selected KDB backend");

	SYSCTL_PROC(_debug_kdb, OID_AUTO, enter,
	- CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE, NULL, 0,
	- kdb_sysctl_enter, "I", "set to enter the debugger");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE \| CTLFLAG_MPSAFE, NULL, 0,
	+ kdb_sysctl_enter, "I",
	+ "set to enter the debugger");

	SYSCTL_PROC(_debug_kdb, OID_AUTO, panic,
	- CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE, NULL, 0,
	- kdb_sysctl_panic, "I", "set to panic the kernel");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE \| CTLFLAG_MPSAFE, NULL, 0,
	+ kdb_sysctl_panic, "I",
	+ "set to panic the kernel");

	SYSCTL_PROC(_debug_kdb, OID_AUTO, trap,
	- CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE, NULL, 0,
	- kdb_sysctl_trap, "I", "set to cause a page fault via data access");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE \| CTLFLAG_MPSAFE, NULL, 0,
	+ kdb_sysctl_trap, "I",
	+ "set to cause a page fault via data access");

	SYSCTL_PROC(_debug_kdb, OID_AUTO, trap_code,
	- CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE, NULL, 0,
	- kdb_sysctl_trap_code, "I", "set to cause a page fault via code access");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE \| CTLFLAG_MPSAFE, NULL, 0,
	+ kdb_sysctl_trap_code, "I",
	+ "set to cause a page fault via code access");

	SYSCTL_PROC(_debug_kdb, OID_AUTO, stack_overflow,
	- CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE, NULL, 0,
	- kdb_sysctl_stack_overflow, "I", "set to cause a stack overflow");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE \| CTLFLAG_MPSAFE, NULL, 0,
	+ kdb_sysctl_stack_overflow, "I",
	+ "set to cause a stack overflow");

	SYSCTL_INT(_debug_kdb, OID_AUTO, break_to_debugger,
	CTLFLAG_RWTUN \| CTLFLAG_SECURE,
	Index: head/sys/kern/subr_lock.c
	===================================================================
	--- head/sys/kern/subr_lock.c
	+++ head/sys/kern/subr_lock.c
	@@ -107,8 +107,10 @@
	lock->lo_flags &= ~LO_INITIALIZED;
	}

	-static SYSCTL_NODE(_debug, OID_AUTO, lock, CTLFLAG_RD, NULL, "lock debugging");
	-static SYSCTL_NODE(_debug_lock, OID_AUTO, delay, CTLFLAG_RD, NULL,
	+static SYSCTL_NODE(_debug, OID_AUTO, lock, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "lock debugging");
	+static SYSCTL_NODE(_debug_lock, OID_AUTO, delay,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"lock delay");

	static u_int __read_mostly starvation_limit = 131072;
	@@ -725,7 +727,8 @@
	critical_exit();
	}

	-static SYSCTL_NODE(_debug_lock, OID_AUTO, prof, CTLFLAG_RD, NULL,
	+static SYSCTL_NODE(_debug_lock, OID_AUTO, prof,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"lock profiling");
	SYSCTL_INT(_debug_lock_prof, OID_AUTO, skipspin, CTLFLAG_RW,
	&lock_prof_skipspin, 0, "Skip profiling on spinlocks.");
	@@ -733,11 +736,17 @@
	&lock_prof_skipcount, 0, "Sample approximately every N lock acquisitions.");
	SYSCTL_INT(_debug_lock_prof, OID_AUTO, rejected, CTLFLAG_RD,
	&lock_prof_rejected, 0, "Number of rejected profiling records");
	-SYSCTL_PROC(_debug_lock_prof, OID_AUTO, stats, CTLTYPE_STRING \| CTLFLAG_RD,
	- NULL, 0, dump_lock_prof_stats, "A", "Lock profiling statistics");
	-SYSCTL_PROC(_debug_lock_prof, OID_AUTO, reset, CTLTYPE_INT \| CTLFLAG_RW,
	- NULL, 0, reset_lock_prof_stats, "I", "Reset lock profiling statistics");
	-SYSCTL_PROC(_debug_lock_prof, OID_AUTO, enable, CTLTYPE_INT \| CTLFLAG_RW,
	- NULL, 0, enable_lock_prof, "I", "Enable lock profiling");
	+SYSCTL_PROC(_debug_lock_prof, OID_AUTO, stats,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	+ dump_lock_prof_stats, "A",
	+ "Lock profiling statistics");
	+SYSCTL_PROC(_debug_lock_prof, OID_AUTO, reset,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ reset_lock_prof_stats, "I",
	+ "Reset lock profiling statistics");
	+SYSCTL_PROC(_debug_lock_prof, OID_AUTO, enable,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL, 0,
	+ enable_lock_prof, "I",
	+ "Enable lock profiling");

	#endif
	Index: head/sys/kern/subr_param.c
	===================================================================
	--- head/sys/kern/subr_param.c
	+++ head/sys/kern/subr_param.c
	@@ -137,8 +137,9 @@
	"Maximum stack size");
	SYSCTL_ULONG(_kern, OID_AUTO, sgrowsiz, CTLFLAG_RWTUN \| CTLFLAG_NOFETCH, &sgrowsiz, 0,
	"Amount to grow stack on a stack fault");
	-SYSCTL_PROC(_kern, OID_AUTO, vm_guest, CTLFLAG_RD \| CTLTYPE_STRING,
	- NULL, 0, sysctl_kern_vm_guest, "A",
	+SYSCTL_PROC(_kern, OID_AUTO, vm_guest,
	+ CTLFLAG_RD \| CTLTYPE_STRING \| CTLFLAG_MPSAFE, NULL, 0,
	+ sysctl_kern_vm_guest, "A",
	"Virtual machine guest detected?");

	/*
	Index: head/sys/kern/subr_prof.c
	===================================================================
	--- head/sys/kern/subr_prof.c
	+++ head/sys/kern/subr_prof.c
	@@ -386,7 +386,9 @@
	/* NOTREACHED */
	}

	-static SYSCTL_NODE(_kern, KERN_PROF, prof, CTLFLAG_RW, sysctl_kern_prof, "");
	+static SYSCTL_NODE(_kern, KERN_PROF, prof,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, sysctl_kern_prof,
	+ "");
	#endif /* GPROF */

	/*
	Index: head/sys/kern/subr_rman.c
	===================================================================
	--- head/sys/kern/subr_rman.c
	+++ head/sys/kern/subr_rman.c
	@@ -1068,7 +1068,8 @@
	return (error);
	}

	-static SYSCTL_NODE(_hw_bus, OID_AUTO, rman, CTLFLAG_RD, sysctl_rman,
	+static SYSCTL_NODE(_hw_bus, OID_AUTO, rman, CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ sysctl_rman,
	"kernel resource manager");

	#ifdef DDB
	Index: head/sys/kern/subr_rtc.c
	===================================================================
	--- head/sys/kern/subr_rtc.c
	+++ head/sys/kern/subr_rtc.c
	@@ -81,8 +81,8 @@
	"Enable debug printing of RTC clock I/O; 1=reads, 2=writes, 3=both.");

	static int sysctl_clock_do_io(SYSCTL_HANDLER_ARGS);
	-SYSCTL_PROC(_debug, OID_AUTO, clock_do_io, CTLTYPE_INT \| CTLFLAG_RW,
	- 0, 0, sysctl_clock_do_io, "I",
	+SYSCTL_PROC(_debug, OID_AUTO, clock_do_io,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, 0, sysctl_clock_do_io, "I",
	"Trigger one-time IO on RTC clocks; 1=read (and discard), 2=write");

	/* XXX: should be kern. now, it's no longer machdep. */
	Index: head/sys/kern/subr_sleepqueue.c
	===================================================================
	--- head/sys/kern/subr_sleepqueue.c
	+++ head/sys/kern/subr_sleepqueue.c
	@@ -147,8 +147,10 @@

	#ifdef SLEEPQUEUE_PROFILING
	u_int sleepq_max_depth;
	-static SYSCTL_NODE(_debug, OID_AUTO, sleepq, CTLFLAG_RD, 0, "sleepq profiling");
	-static SYSCTL_NODE(_debug_sleepq, OID_AUTO, chains, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_debug, OID_AUTO, sleepq, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "sleepq profiling");
	+static SYSCTL_NODE(_debug_sleepq, OID_AUTO, chains,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"sleepq chain stats");
	SYSCTL_UINT(_debug_sleepq, OID_AUTO, max_depth, CTLFLAG_RD, &sleepq_max_depth,
	0, "maxmimum depth achieved of a single chain");
	@@ -195,7 +197,8 @@
	snprintf(chain_name, sizeof(chain_name), "%u", i);
	chain_oid = SYSCTL_ADD_NODE(NULL,
	SYSCTL_STATIC_CHILDREN(_debug_sleepq_chains), OID_AUTO,
	- chain_name, CTLFLAG_RD, NULL, "sleepq chain stats");
	+ chain_name, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "sleepq chain stats");
	SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(chain_oid), OID_AUTO,
	"depth", CTLFLAG_RD, &sleepq_chains[i].sc_depth, 0, NULL);
	SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(chain_oid), OID_AUTO,
	@@ -1426,13 +1429,18 @@
	return (error);
	}

	-SYSCTL_PROC(_debug_sleepq, OID_AUTO, stats, CTLTYPE_STRING \| CTLFLAG_RD,
	- NULL, 0, dump_sleepq_prof_stats, "A", "Sleepqueue profiling statistics");
	-SYSCTL_PROC(_debug_sleepq, OID_AUTO, reset, CTLTYPE_INT \| CTLFLAG_RW,
	- NULL, 0, reset_sleepq_prof_stats, "I",
	+SYSCTL_PROC(_debug_sleepq, OID_AUTO, stats,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ dump_sleepq_prof_stats, "A",
	+ "Sleepqueue profiling statistics");
	+SYSCTL_PROC(_debug_sleepq, OID_AUTO, reset,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL, 0,
	+ reset_sleepq_prof_stats, "I",
	"Reset sleepqueue profiling statistics");
	-SYSCTL_PROC(_debug_sleepq, OID_AUTO, enable, CTLTYPE_INT \| CTLFLAG_RW,
	- NULL, 0, enable_sleepq_prof, "I", "Enable sleepqueue profiling");
	+SYSCTL_PROC(_debug_sleepq, OID_AUTO, enable,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL, 0,
	+ enable_sleepq_prof, "I",
	+ "Enable sleepqueue profiling");
	#endif

	#ifdef DDB
	Index: head/sys/kern/subr_smp.c
	===================================================================
	--- head/sys/kern/subr_smp.c
	+++ head/sys/kern/subr_smp.c
	@@ -76,7 +76,8 @@
	volatile int smp_started;
	u_int mp_maxid;

	-static SYSCTL_NODE(_kern, OID_AUTO, smp, CTLFLAG_RD\|CTLFLAG_CAPRD, NULL,
	+static SYSCTL_NODE(_kern, OID_AUTO, smp,
	+ CTLFLAG_RD \| CTLFLAG_CAPRD \| CTLFLAG_MPSAFE, NULL,
	"Kernel SMP");

	SYSCTL_INT(_kern_smp, OID_AUTO, maxid, CTLFLAG_RD\|CTLFLAG_CAPRD, &mp_maxid, 0,
	Index: head/sys/kern/subr_smr.c
	===================================================================
	--- head/sys/kern/subr_smr.c
	+++ head/sys/kern/subr_smr.c
	@@ -199,7 +199,8 @@
	*/
	#define SMR_SEQ_ADVANCE MAX(SMR_SEQ_INCR, SMR_LAZY_GRACE_MAX)

	-static SYSCTL_NODE(_debug, OID_AUTO, smr, CTLFLAG_RW, NULL, "SMR Stats");
	+static SYSCTL_NODE(_debug, OID_AUTO, smr, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ "SMR Stats");
	static counter_u64_t advance = EARLY_COUNTER;
	SYSCTL_COUNTER_U64(_debug_smr, OID_AUTO, advance, CTLFLAG_RW, &advance, "");
	static counter_u64_t advance_wait = EARLY_COUNTER;
	Index: head/sys/kern/subr_stats.c
	===================================================================
	--- head/sys/kern/subr_stats.c
	+++ head/sys/kern/subr_stats.c
	@@ -3890,11 +3890,12 @@
	return (err);
	}

	-SYSCTL_NODE(_kern, OID_AUTO, stats, CTLFLAG_RW, NULL,
	+SYSCTL_NODE(_kern, OID_AUTO, stats, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	"stats(9) MIB");

	-SYSCTL_PROC(_kern_stats, OID_AUTO, templates, CTLTYPE_STRING\|CTLFLAG_RD,
	- NULL, 0, stats_tpl_list_available, "A",
	+SYSCTL_PROC(_kern_stats, OID_AUTO, templates,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	+ stats_tpl_list_available, "A",
	"list the name/hash of all available stats(9) templates");

	#else /* ! _KERNEL */
	Index: head/sys/kern/subr_turnstile.c
	===================================================================
	--- head/sys/kern/subr_turnstile.c
	+++ head/sys/kern/subr_turnstile.c
	@@ -141,9 +141,10 @@

	#ifdef TURNSTILE_PROFILING
	u_int turnstile_max_depth;
	-static SYSCTL_NODE(_debug, OID_AUTO, turnstile, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_debug, OID_AUTO, turnstile, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"turnstile profiling");
	-static SYSCTL_NODE(_debug_turnstile, OID_AUTO, chains, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_debug_turnstile, OID_AUTO, chains,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"turnstile chain stats");
	SYSCTL_UINT(_debug_turnstile, OID_AUTO, max_depth, CTLFLAG_RD,
	&turnstile_max_depth, 0, "maximum depth achieved of a single chain");
	@@ -406,7 +407,8 @@
	snprintf(chain_name, sizeof(chain_name), "%d", i);
	chain_oid = SYSCTL_ADD_NODE(NULL,
	SYSCTL_STATIC_CHILDREN(_debug_turnstile_chains), OID_AUTO,
	- chain_name, CTLFLAG_RD, NULL, "turnstile chain stats");
	+ chain_name, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "turnstile chain stats");
	SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(chain_oid), OID_AUTO,
	"depth", CTLFLAG_RD, &turnstile_chains[i].tc_depth, 0,
	NULL);
	Index: head/sys/kern/subr_witness.c
	===================================================================
	--- head/sys/kern/subr_witness.c
	+++ head/sys/kern/subr_witness.c
	@@ -361,7 +361,7 @@
	static int witness_voutput(const char *fmt, va_list ap) __printflike(1, 0);
	static void witness_setflag(struct lock_object *lock, int flag, int set);

	-static SYSCTL_NODE(_debug, OID_AUTO, witness, CTLFLAG_RW, NULL,
	+static SYSCTL_NODE(_debug, OID_AUTO, witness, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	"Witness Locking");

	/*
	@@ -372,8 +372,10 @@
	* completely disabled.
	*/
	static int witness_watch = 1;
	-SYSCTL_PROC(_debug_witness, OID_AUTO, watch, CTLFLAG_RWTUN \| CTLTYPE_INT, NULL, 0,
	- sysctl_debug_witness_watch, "I", "witness is watching lock operations");
	+SYSCTL_PROC(_debug_witness, OID_AUTO, watch,
	+ CTLFLAG_RWTUN \| CTLTYPE_INT \| CTLFLAG_MPSAFE, NULL, 0,
	+ sysctl_debug_witness_watch, "I",
	+ "witness is watching lock operations");

	#ifdef KDB
	/*
	@@ -424,21 +426,26 @@
	};

	static enum witness_channel witness_channel = WITNESS_CONSOLE;
	-SYSCTL_PROC(_debug_witness, OID_AUTO, output_channel, CTLTYPE_STRING \|
	- CTLFLAG_RWTUN, NULL, 0, sysctl_debug_witness_channel, "A",
	+SYSCTL_PROC(_debug_witness, OID_AUTO, output_channel,
	+ CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_MPSAFE, NULL, 0,
	+ sysctl_debug_witness_channel, "A",
	"Output channel for warnings");

	/*
	* Call this to print out the relations between locks.
	*/
	-SYSCTL_PROC(_debug_witness, OID_AUTO, fullgraph, CTLTYPE_STRING \| CTLFLAG_RD,
	- NULL, 0, sysctl_debug_witness_fullgraph, "A", "Show locks relation graphs");
	+SYSCTL_PROC(_debug_witness, OID_AUTO, fullgraph,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	+ sysctl_debug_witness_fullgraph, "A",
	+ "Show locks relation graphs");

	/*
	* Call this to print out the witness faulty stacks.
	*/
	-SYSCTL_PROC(_debug_witness, OID_AUTO, badstacks, CTLTYPE_STRING \| CTLFLAG_RD,
	- NULL, 0, sysctl_debug_witness_badstacks, "A", "Show bad witness stacks");
	+SYSCTL_PROC(_debug_witness, OID_AUTO, badstacks,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	+ sysctl_debug_witness_badstacks, "A",
	+ "Show bad witness stacks");

	static struct mtx w_mtx;

	Index: head/sys/kern/sys_socket.c
	===================================================================
	--- head/sys/kern/sys_socket.c
	+++ head/sys/kern/sys_socket.c
	@@ -77,7 +77,7 @@
	#include <vm/vm_extern.h>
	#include <vm/vm_map.h>

	-static SYSCTL_NODE(_kern_ipc, OID_AUTO, aio, CTLFLAG_RD, NULL,
	+static SYSCTL_NODE(_kern_ipc, OID_AUTO, aio, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"socket AIO stats");

	static int empty_results;
	Index: head/sys/kern/uipc_accf.c
	===================================================================
	--- head/sys/kern/uipc_accf.c
	+++ head/sys/kern/uipc_accf.c
	@@ -62,7 +62,8 @@

	static int unloadable = 0;

	-SYSCTL_NODE(_net, OID_AUTO, accf, CTLFLAG_RW, 0, "Accept filters");
	+SYSCTL_NODE(_net, OID_AUTO, accf, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Accept filters");
	SYSCTL_INT(_net_accf, OID_AUTO, unloadable, CTLFLAG_RW, &unloadable, 0,
	"Allow unload of accept filters (not recommended)");

	Index: head/sys/kern/uipc_ktls.c
	===================================================================
	--- head/sys/kern/uipc_ktls.c
	+++ head/sys/kern/uipc_ktls.c
	@@ -87,9 +87,9 @@
	static uma_zone_t ktls_session_zone;
	static uint16_t ktls_cpuid_lookup[MAXCPU];

	-SYSCTL_NODE(_kern_ipc, OID_AUTO, tls, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_kern_ipc, OID_AUTO, tls, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Kernel TLS offload");
	-SYSCTL_NODE(_kern_ipc_tls, OID_AUTO, stats, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_kern_ipc_tls, OID_AUTO, stats, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Kernel TLS offload stats");

	static int ktls_allow_unload;
	@@ -162,12 +162,12 @@
	SYSCTL_COUNTER_U64(_kern_ipc_tls_stats, OID_AUTO, switch_failed, CTLFLAG_RD,
	&ktls_switch_failed, "TLS sessions unable to switch between SW and ifnet");

	-SYSCTL_NODE(_kern_ipc_tls, OID_AUTO, sw, CTLFLAG_RD, 0,
	+SYSCTL_NODE(_kern_ipc_tls, OID_AUTO, sw, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Software TLS session stats");
	-SYSCTL_NODE(_kern_ipc_tls, OID_AUTO, ifnet, CTLFLAG_RD, 0,
	+SYSCTL_NODE(_kern_ipc_tls, OID_AUTO, ifnet, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Hardware (ifnet) TLS session stats");
	#ifdef TCP_OFFLOAD
	-SYSCTL_NODE(_kern_ipc_tls, OID_AUTO, toe, CTLFLAG_RD, 0,
	+SYSCTL_NODE(_kern_ipc_tls, OID_AUTO, toe, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"TOE TLS session stats");
	#endif

	Index: head/sys/kern/uipc_mbuf.c
	===================================================================
	--- head/sys/kern/uipc_mbuf.c
	+++ head/sys/kern/uipc_mbuf.c
	@@ -2113,10 +2113,14 @@
	return (error);
	}

	-SYSCTL_PROC(_kern_ipc, OID_AUTO, mbufprofile, CTLTYPE_STRING\|CTLFLAG_RD,
	- NULL, 0, mbprof_handler, "A", "mbuf profiling statistics");
	+SYSCTL_PROC(_kern_ipc, OID_AUTO, mbufprofile,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ mbprof_handler, "A",
	+ "mbuf profiling statistics");

	-SYSCTL_PROC(_kern_ipc, OID_AUTO, mbufprofileclr, CTLTYPE_INT\|CTLFLAG_RW,
	- NULL, 0, mbprof_clr_handler, "I", "clear mbuf profiling statistics");
	+SYSCTL_PROC(_kern_ipc, OID_AUTO, mbufprofileclr,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ mbprof_clr_handler, "I",
	+ "clear mbuf profiling statistics");
	#endif

	Index: head/sys/kern/uipc_mqueue.c
	===================================================================
	--- head/sys/kern/uipc_mqueue.c
	+++ head/sys/kern/uipc_mqueue.c
	@@ -199,7 +199,7 @@
	/* following real data... */
	};

	-static SYSCTL_NODE(_kern, OID_AUTO, mqueue, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_kern, OID_AUTO, mqueue, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"POSIX real time message queue");

	static int default_maxmsg = 10;
	Index: head/sys/kern/uipc_sockbuf.c
	===================================================================
	--- head/sys/kern/uipc_sockbuf.c
	+++ head/sys/kern/uipc_sockbuf.c
	@@ -1523,7 +1523,9 @@
	/* This takes the place of kern.maxsockbuf, which moved to kern.ipc. */
	static int dummy;
	SYSCTL_INT(_kern, KERN_DUMMY, dummy, CTLFLAG_RW \| CTLFLAG_SKIP, &dummy, 0, "");
	-SYSCTL_OID(_kern_ipc, KIPC_MAXSOCKBUF, maxsockbuf, CTLTYPE_ULONG\|CTLFLAG_RW,
	- &sb_max, 0, sysctl_handle_sb_max, "LU", "Maximum socket buffer size");
	+SYSCTL_OID(_kern_ipc, KIPC_MAXSOCKBUF, maxsockbuf,
	+ CTLTYPE_ULONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sb_max, 0,
	+ sysctl_handle_sb_max, "LU",
	+ "Maximum socket buffer size");
	SYSCTL_ULONG(_kern_ipc, KIPC_SOCKBUF_WASTE, sockbuf_waste_factor, CTLFLAG_RW,
	&sb_efficiency, 0, "Socket buffer size waste factor");
	Index: head/sys/kern/uipc_socket.c
	===================================================================
	--- head/sys/kern/uipc_socket.c
	+++ head/sys/kern/uipc_socket.c
	@@ -235,12 +235,13 @@
	somaxconn = val;
	return (0);
	}
	-SYSCTL_PROC(_kern_ipc, OID_AUTO, soacceptqueue, CTLTYPE_UINT \| CTLFLAG_RW,
	- 0, sizeof(int), sysctl_somaxconn, "I",
	+SYSCTL_PROC(_kern_ipc, OID_AUTO, soacceptqueue,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_somaxconn, "I",
	"Maximum listen socket pending connection accept queue size");
	SYSCTL_PROC(_kern_ipc, KIPC_SOMAXCONN, somaxconn,
	- CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_SKIP,
	- 0, sizeof(int), sysctl_somaxconn, "I",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_SKIP \| CTLFLAG_NEEDGIANT, 0,
	+ sizeof(int), sysctl_somaxconn, "I",
	"Maximum listen socket pending connection accept queue size (compat)");

	static int numopensockets;
	@@ -265,7 +266,8 @@
	* General IPC sysctl name space, used by sockets and a variety of other IPC
	* types.
	*/
	-SYSCTL_NODE(_kern, KERN_IPC, ipc, CTLFLAG_RW, 0, "IPC");
	+SYSCTL_NODE(_kern, KERN_IPC, ipc, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "IPC");

	/*
	* Initialize the socket subsystem and set up the socket
	@@ -369,8 +371,9 @@
	}
	return (error);
	}
	-SYSCTL_PROC(_kern_ipc, OID_AUTO, maxsockets, CTLTYPE_INT\|CTLFLAG_RW,
	- &maxsockets, 0, sysctl_maxsockets, "IU",
	+SYSCTL_PROC(_kern_ipc, OID_AUTO, maxsockets,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &maxsockets, 0,
	+ sysctl_maxsockets, "IU",
	"Maximum number of sockets available");

	/*
	Index: head/sys/kern/uipc_usrreq.c
	===================================================================
	--- head/sys/kern/uipc_usrreq.c
	+++ head/sys/kern/uipc_usrreq.c
	@@ -163,11 +163,16 @@
	static u_long unpsp_sendspace = PIPSIZ; /* really max datagram size */
	static u_long unpsp_recvspace = PIPSIZ;

	-static SYSCTL_NODE(_net, PF_LOCAL, local, CTLFLAG_RW, 0, "Local domain");
	-static SYSCTL_NODE(_net_local, SOCK_STREAM, stream, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net, PF_LOCAL, local, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Local domain");
	+static SYSCTL_NODE(_net_local, SOCK_STREAM, stream,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"SOCK_STREAM");
	-static SYSCTL_NODE(_net_local, SOCK_DGRAM, dgram, CTLFLAG_RW, 0, "SOCK_DGRAM");
	-static SYSCTL_NODE(_net_local, SOCK_SEQPACKET, seqpacket, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_local, SOCK_DGRAM, dgram,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "SOCK_DGRAM");
	+static SYSCTL_NODE(_net_local, SOCK_SEQPACKET, seqpacket,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"SOCK_SEQPACKET");

	SYSCTL_ULONG(_net_local_stream, OID_AUTO, sendspace, CTLFLAG_RW,
	@@ -1898,14 +1903,16 @@
	return (error);
	}

	-SYSCTL_PROC(_net_local_dgram, OID_AUTO, pcblist, CTLTYPE_OPAQUE \| CTLFLAG_RD,
	+SYSCTL_PROC(_net_local_dgram, OID_AUTO, pcblist,
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	(void *)(intptr_t)SOCK_DGRAM, 0, unp_pcblist, "S,xunpcb",
	"List of active local datagram sockets");
	-SYSCTL_PROC(_net_local_stream, OID_AUTO, pcblist, CTLTYPE_OPAQUE \| CTLFLAG_RD,
	+SYSCTL_PROC(_net_local_stream, OID_AUTO, pcblist,
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	(void *)(intptr_t)SOCK_STREAM, 0, unp_pcblist, "S,xunpcb",
	"List of active local stream sockets");
	SYSCTL_PROC(_net_local_seqpacket, OID_AUTO, pcblist,
	- CTLTYPE_OPAQUE \| CTLFLAG_RD,
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	(void *)(intptr_t)SOCK_SEQPACKET, 0, unp_pcblist, "S,xunpcb",
	"List of active local seqpacket sockets");

	Index: head/sys/kern/vfs_aio.c
	===================================================================
	--- head/sys/kern/vfs_aio.c
	+++ head/sys/kern/vfs_aio.c
	@@ -107,7 +107,7 @@
	static MALLOC_DEFINE(M_LIO, "lio", "listio aio control block list");
	static MALLOC_DEFINE(M_AIOS, "aios", "aio_suspend aio control block list");

	-static SYSCTL_NODE(_vfs, OID_AUTO, aio, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_vfs, OID_AUTO, aio, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Async IO management");

	static int enable_aio_unsafe = 0;
	Index: head/sys/kern/vfs_cache.c
	===================================================================
	--- head/sys/kern/vfs_cache.c
	+++ head/sys/kern/vfs_cache.c
	@@ -343,7 +343,7 @@
	/*
	* The new name cache statistics
	*/
	-static SYSCTL_NODE(_vfs, OID_AUTO, cache, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_vfs, OID_AUTO, cache, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Name cache statistics");
	#define STATNODE_ULONG(name, descr) \
	SYSCTL_ULONG(_vfs_cache, OID_AUTO, name, CTLFLAG_RD, &name, 0, descr);
	@@ -581,7 +581,8 @@
	/*
	* Grab an atomic snapshot of the name cache hash chain lengths
	*/
	-static SYSCTL_NODE(_debug, OID_AUTO, hashstat, CTLFLAG_RW, NULL,
	+static SYSCTL_NODE(_debug, OID_AUTO, hashstat,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	"hash table stats");

	static int
	Index: head/sys/libkern/iconv.c
	===================================================================
	--- head/sys/libkern/iconv.c
	+++ head/sys/libkern/iconv.c
	@@ -42,7 +42,8 @@

	SYSCTL_DECL(_kern_iconv);

	-SYSCTL_NODE(_kern, OID_AUTO, iconv, CTLFLAG_RW, NULL, "kernel iconv interface");
	+SYSCTL_NODE(_kern, OID_AUTO, iconv, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ "kernel iconv interface");

	MALLOC_DEFINE(M_ICONV, "iconv", "ICONV structures");
	static MALLOC_DEFINE(M_ICONVDATA, "iconv_data", "ICONV data");
	@@ -348,8 +349,10 @@
	return error;
	}

	-SYSCTL_PROC(_kern_iconv, OID_AUTO, drvlist, CTLFLAG_RD \| CTLTYPE_OPAQUE,
	- NULL, 0, iconv_sysctl_drvlist, "S,xlat", "registered converters");
	+SYSCTL_PROC(_kern_iconv, OID_AUTO, drvlist,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_MPSAFE, NULL, 0,
	+ iconv_sysctl_drvlist, "S,xlat",
	+ "registered converters");

	/*
	* List all available charset pairs.
	@@ -379,8 +382,10 @@
	return error;
	}

	-SYSCTL_PROC(_kern_iconv, OID_AUTO, cslist, CTLFLAG_RD \| CTLTYPE_OPAQUE,
	- NULL, 0, iconv_sysctl_cslist, "S,xlat", "registered charset pairs");
	+SYSCTL_PROC(_kern_iconv, OID_AUTO, cslist,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_MPSAFE, NULL, 0,
	+ iconv_sysctl_cslist, "S,xlat",
	+ "registered charset pairs");

	int
	iconv_add(const char converter, const char to, const char *from)
	@@ -446,8 +451,10 @@
	return error;
	}

	-SYSCTL_PROC(_kern_iconv, OID_AUTO, add, CTLFLAG_RW \| CTLTYPE_OPAQUE,
	- NULL, 0, iconv_sysctl_add, "S,xlat", "register charset pair");
	+SYSCTL_PROC(_kern_iconv, OID_AUTO, add,
	+ CTLFLAG_RW \| CTLTYPE_OPAQUE \| CTLFLAG_MPSAFE, NULL, 0,
	+ iconv_sysctl_add, "S,xlat",
	+ "register charset pair");

	/*
	* Default stubs for converters
	Index: head/sys/mips/atheros/ar531x/ar5315_machdep.c
	===================================================================
	--- head/sys/mips/atheros/ar531x/ar5315_machdep.c
	+++ head/sys/mips/atheros/ar531x/ar5315_machdep.c
	@@ -109,7 +109,7 @@
	}

	#if defined(SOC_VENDOR) \|\| defined(SOC_MODEL) \|\| defined(SOC_REV)
	-static SYSCTL_NODE(_hw, OID_AUTO, soc, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_hw, OID_AUTO, soc, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"System on Chip information");
	#endif
	#if defined(SOC_VENDOR)
	@@ -129,7 +129,8 @@
	#endif

	#if defined(DEVICE_VENDOR) \|\| defined(DEVICE_MODEL) \|\| defined(DEVICE_REV)
	-static SYSCTL_NODE(_hw, OID_AUTO, device, CTLFLAG_RD, 0, "Board information");
	+static SYSCTL_NODE(_hw, OID_AUTO, device, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Board information");
	#endif
	#if defined(DEVICE_VENDOR)
	static char hw_device_vendor[] = DEVICE_VENDOR;
	Index: head/sys/mips/atheros/if_arge.c
	===================================================================
	--- head/sys/mips/atheros/if_arge.c
	+++ head/sys/mips/atheros/if_arge.c
	@@ -292,7 +292,7 @@
	int i;

	tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "intr",
	- CTLFLAG_RD, NULL, "Interrupt statistics");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Interrupt statistics");
	child = SYSCTL_CHILDREN(tree);
	for (i = 0; i < 32; i++) {
	snprintf(sn, sizeof(sn), "%d", i);
	Index: head/sys/mips/cavium/octe/mv88e61xxphy.c
	===================================================================
	--- head/sys/mips/cavium/octe/mv88e61xxphy.c
	+++ head/sys/mips/cavium/octe/mv88e61xxphy.c
	@@ -172,7 +172,7 @@
	* Add per-port sysctl tree/handlers.
	*/
	port_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "port",
	- CTLFLAG_RD, NULL, "Switch Ports");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Switch Ports");
	port_tree = SYSCTL_CHILDREN(port_node);
	for (port = 0; port < MV88E61XX_PORTS; port++) {
	struct mv88e61xxphy_port_softc *psc;
	@@ -181,41 +181,41 @@

	portbuf[0] = '0' + port;
	portN_node = SYSCTL_ADD_NODE(ctx, port_tree, OID_AUTO, portbuf,
	- CTLFLAG_RD, NULL, "Switch Port");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Switch Port");
	portN_tree = SYSCTL_CHILDREN(portN_node);

	SYSCTL_ADD_PROC(ctx, portN_tree, OID_AUTO, "duplex",
	- CTLFLAG_RD \| CTLTYPE_INT, psc,
	+ CTLFLAG_RD \| CTLTYPE_INT \| CTLFLAG_NEEDGIANT, psc,
	MV88E61XXPHY_LINK_SYSCTL_DUPLEX,
	mv88e61xxphy_sysctl_link_proc, "IU",
	"Media duplex status (0 = half duplex; 1 = full duplex)");

	SYSCTL_ADD_PROC(ctx, portN_tree, OID_AUTO, "link",
	- CTLFLAG_RD \| CTLTYPE_INT, psc,
	+ CTLFLAG_RD \| CTLTYPE_INT \| CTLFLAG_NEEDGIANT, psc,
	MV88E61XXPHY_LINK_SYSCTL_LINK,
	mv88e61xxphy_sysctl_link_proc, "IU",
	"Link status (0 = down; 1 = up)");

	SYSCTL_ADD_PROC(ctx, portN_tree, OID_AUTO, "media",
	- CTLFLAG_RD \| CTLTYPE_INT, psc,
	+ CTLFLAG_RD \| CTLTYPE_INT \| CTLFLAG_NEEDGIANT, psc,
	MV88E61XXPHY_LINK_SYSCTL_MEDIA,
	mv88e61xxphy_sysctl_link_proc, "IU",
	"Media speed (0 = unknown; 10 = 10Mbps; 100 = 100Mbps; 1000 = 1Gbps)");

	SYSCTL_ADD_PROC(ctx, portN_tree, OID_AUTO, "domain",
	- CTLFLAG_RW \| CTLTYPE_INT, psc,
	+ CTLFLAG_RW \| CTLTYPE_INT \| CTLFLAG_NEEDGIANT, psc,
	MV88E61XXPHY_PORT_SYSCTL_DOMAIN,
	mv88e61xxphy_sysctl_port_proc, "IU",
	"Broadcast domain (ports can only talk to other ports in the same domain)");

	SYSCTL_ADD_PROC(ctx, portN_tree, OID_AUTO, "vlan",
	- CTLFLAG_RW \| CTLTYPE_INT, psc,
	+ CTLFLAG_RW \| CTLTYPE_INT \| CTLFLAG_NEEDGIANT, psc,
	MV88E61XXPHY_PORT_SYSCTL_VLAN,
	mv88e61xxphy_sysctl_port_proc, "IU",
	"Tag packets from/for this port with a given VLAN.");

	SYSCTL_ADD_PROC(ctx, portN_tree, OID_AUTO, "priority",
	- CTLFLAG_RW \| CTLTYPE_INT, psc,
	+ CTLFLAG_RW \| CTLTYPE_INT \| CTLFLAG_NEEDGIANT, psc,
	MV88E61XXPHY_PORT_SYSCTL_PRIORITY,
	mv88e61xxphy_sysctl_port_proc, "IU",
	"Default packet priority for this port.");
	Index: head/sys/mips/cavium/octeon_machdep.c
	===================================================================
	--- head/sys/mips/cavium/octeon_machdep.c
	+++ head/sys/mips/cavium/octeon_machdep.c
	@@ -446,8 +446,9 @@
	return (0);
	}

	-SYSCTL_PROC(_machdep, OID_AUTO, led_display, CTLTYPE_STRING \| CTLFLAG_WR,
	- NULL, 0, sysctl_machdep_led_display, "A",
	+SYSCTL_PROC(_machdep, OID_AUTO, led_display,
	+ CTLTYPE_STRING \| CTLFLAG_WR \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ sysctl_machdep_led_display, "A",
	"String to display on LED display");

	void
	Index: head/sys/mips/cavium/usb/octusb.c
	===================================================================
	--- head/sys/mips/cavium/usb/octusb.c
	+++ head/sys/mips/cavium/usb/octusb.c
	@@ -83,7 +83,8 @@
	#ifdef USB_DEBUG
	static int octusbdebug = 0;

	-static SYSCTL_NODE(_hw_usb, OID_AUTO, octusb, CTLFLAG_RW, 0, "OCTUSB");
	+static SYSCTL_NODE(_hw_usb, OID_AUTO, octusb, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "OCTUSB");
	SYSCTL_INT(_hw_usb_octusb, OID_AUTO, debug, CTLFLAG_RWTUN,
	&octusbdebug, 0, "OCTUSB debug level");
	#endif
	Index: head/sys/mips/ingenic/jz4780_aic.c
	===================================================================
	--- head/sys/mips/ingenic/jz4780_aic.c
	+++ head/sys/mips/ingenic/jz4780_aic.c
	@@ -769,7 +769,8 @@
	/* Create device sysctl node. */
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
	- OID_AUTO, "internal_codec", CTLTYPE_INT \| CTLFLAG_RW,
	+ OID_AUTO, "internal_codec",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	scp, 0, sysctl_hw_pcm_internal_codec, "I",
	"use internal audio codec");

	Index: head/sys/mips/mips/busdma_machdep.c
	===================================================================
	--- head/sys/mips/mips/busdma_machdep.c
	+++ head/sys/mips/mips/busdma_machdep.c
	@@ -142,7 +142,8 @@
	static int busdma_zonecount;
	static STAILQ_HEAD(, bounce_zone) bounce_zone_list;

	-static SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD, 0, "Busdma parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD, 0,
	+ "Busdma parameters");
	SYSCTL_INT(_hw_busdma, OID_AUTO, total_bpages, CTLFLAG_RD, &total_bpages, 0,
	"Total bounce pages");

	@@ -1374,7 +1375,7 @@
	sysctl_ctx_init(&bz->sysctl_tree);
	bz->sysctl_tree_top = SYSCTL_ADD_NODE(&bz->sysctl_tree,
	SYSCTL_STATIC_CHILDREN(_hw_busdma), OID_AUTO, bz->zoneid,
	- CTLFLAG_RD, 0, "");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");
	if (bz->sysctl_tree_top == NULL) {
	sysctl_ctx_free(&bz->sysctl_tree);
	return (0); /* XXX error code? */
	Index: head/sys/mips/mips/pmap.c
	===================================================================
	--- head/sys/mips/mips/pmap.c
	+++ head/sys/mips/mips/pmap.c
	@@ -1382,7 +1382,8 @@
	#endif
	};

	-static SYSCTL_NODE(_vm, OID_AUTO, pmap, CTLFLAG_RD, 0, "VM/pmap parameters");
	+static SYSCTL_NODE(_vm, OID_AUTO, pmap, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "VM/pmap parameters");

	SYSCTL_INT(_vm_pmap, OID_AUTO, pv_entry_count, CTLFLAG_RD, &pv_entry_count, 0,
	"Current number of pv entries");
	Index: head/sys/mips/mips/tick.c
	===================================================================
	--- head/sys/mips/mips/tick.c
	+++ head/sys/mips/mips/tick.c
	@@ -178,8 +178,9 @@
	return (error);
	}

	-SYSCTL_PROC(_machdep, OID_AUTO, counter_freq, CTLTYPE_U64 \| CTLFLAG_RW,
	- NULL, 0, sysctl_machdep_counter_freq, "QU",
	+SYSCTL_PROC(_machdep, OID_AUTO, counter_freq,
	+ CTLTYPE_U64 \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ sysctl_machdep_counter_freq, "QU",
	"Timecounter frequency in Hz");

	static unsigned
	Index: head/sys/mips/nlm/cms.c
	===================================================================
	--- head/sys/mips/nlm/cms.c
	+++ head/sys/mips/nlm/cms.c
	@@ -493,5 +493,7 @@
	return (error);
	}

	-SYSCTL_PROC(_debug, OID_AUTO, msgring, CTLTYPE_STRING \| CTLFLAG_RD, 0, 0,
	- sys_print_debug, "A", "msgring debug info");
	+SYSCTL_PROC(_debug, OID_AUTO, msgring,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, 0, 0,
	+ sys_print_debug, "A",
	+ "msgring debug info");
	Index: head/sys/mips/nlm/dev/net/xlpge.c
	===================================================================
	--- head/sys/mips/nlm/dev/net/xlpge.c
	+++ head/sys/mips/nlm/dev/net/xlpge.c
	@@ -1159,10 +1159,10 @@
	tree = device_get_sysctl_tree(dev);
	child = SYSCTL_CHILDREN(tree);

	-#define XLPGE_STAT(name, offset, desc) \
	- SYSCTL_ADD_PROC(ctx, child, OID_AUTO, name, \
	- CTLTYPE_UINT \| CTLFLAG_RD, sc, offset, \
	- xlpge_stats_sysctl, "IU", desc)
	+#define XLPGE_STAT(name, offset, desc) \
	+ SYSCTL_ADD_PROC(ctx, child, OID_AUTO, name, \
	+ CTLTYPE_UINT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, \
	+ sc, offset, xlpge_stats_sysctl, "IU", desc)

	XLPGE_STAT("tr127", nlm_sgmii_stats_tr127, "TxRx 64 - 127 Bytes");
	XLPGE_STAT("tr255", nlm_sgmii_stats_tr255, "TxRx 128 - 255 Bytes");
	Index: head/sys/mips/nlm/tick.c
	===================================================================
	--- head/sys/mips/nlm/tick.c
	+++ head/sys/mips/nlm/tick.c
	@@ -179,8 +179,9 @@
	return (error);
	}

	-SYSCTL_PROC(_machdep, OID_AUTO, counter_freq, CTLTYPE_U64 \| CTLFLAG_RW,
	- NULL, 0, sysctl_machdep_counter_freq, "QU",
	+SYSCTL_PROC(_machdep, OID_AUTO, counter_freq,
	+ CTLTYPE_U64 \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ sysctl_machdep_counter_freq, "QU",
	"Timecounter frequency in Hz");

	static unsigned
	Index: head/sys/net/bpf.c
	===================================================================
	--- head/sys/net/bpf.c
	+++ head/sys/net/bpf.c
	@@ -214,7 +214,8 @@
	static void bpf_drvinit(void *);
	static int bpf_stats_sysctl(SYSCTL_HANDLER_ARGS);

	-SYSCTL_NODE(_net, OID_AUTO, bpf, CTLFLAG_RW, 0, "bpf sysctl");
	+SYSCTL_NODE(_net, OID_AUTO, bpf, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "bpf sysctl");
	int bpf_maxinsns = BPF_MAXINSNS;
	SYSCTL_INT(_net_bpf, OID_AUTO, maxinsns, CTLFLAG_RW,
	&bpf_maxinsns, 0, "Maximum bpf program instructions");
	Index: head/sys/net/bpf_jitter.c
	===================================================================
	--- head/sys/net/bpf_jitter.c
	+++ head/sys/net/bpf_jitter.c
	@@ -57,7 +57,8 @@
	#ifdef _KERNEL
	MALLOC_DEFINE(M_BPFJIT, "BPF_JIT", "BPF JIT compiler");

	-SYSCTL_NODE(_net, OID_AUTO, bpf_jitter, CTLFLAG_RW, 0, "BPF JIT compiler");
	+SYSCTL_NODE(_net, OID_AUTO, bpf_jitter, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "BPF JIT compiler");
	int bpf_jitter_enable = 1;
	SYSCTL_INT(_net_bpf_jitter, OID_AUTO, enable, CTLFLAG_RW,
	&bpf_jitter_enable, 0, "enable BPF JIT compiler");
	Index: head/sys/net/debugnet.c
	===================================================================
	--- head/sys/net/debugnet.c
	+++ head/sys/net/debugnet.c
	@@ -72,7 +72,7 @@

	FEATURE(debugnet, "Debugnet support");

	-SYSCTL_NODE(_net, OID_AUTO, debugnet, CTLFLAG_RD, NULL,
	+SYSCTL_NODE(_net, OID_AUTO, debugnet, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"debugnet parameters");

	unsigned debugnet_debug;
	Index: head/sys/net/ieee8023ad_lacp.c
	===================================================================
	--- head/sys/net/ieee8023ad_lacp.c
	+++ head/sys/net/ieee8023ad_lacp.c
	@@ -197,7 +197,8 @@

	VNET_DEFINE_STATIC(int, lacp_debug);
	#define V_lacp_debug VNET(lacp_debug)
	-SYSCTL_NODE(_net_link_lagg, OID_AUTO, lacp, CTLFLAG_RD, 0, "ieee802.3ad");
	+SYSCTL_NODE(_net_link_lagg, OID_AUTO, lacp, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "ieee802.3ad");
	SYSCTL_INT(_net_link_lagg_lacp, OID_AUTO, debug, CTLFLAG_RWTUN \| CTLFLAG_VNET,
	&VNET_NAME(lacp_debug), 0, "Enable LACP debug logging (1=debug, 2=trace)");

	Index: head/sys/net/if.c
	===================================================================
	--- head/sys/net/if.c
	+++ head/sys/net/if.c
	@@ -192,8 +192,10 @@
	#endif
	};

	-SYSCTL_NODE(_net, PF_LINK, link, CTLFLAG_RW, 0, "Link layers");
	-SYSCTL_NODE(_net_link, 0, generic, CTLFLAG_RW, 0, "Generic link-management");
	+SYSCTL_NODE(_net, PF_LINK, link, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Link layers");
	+SYSCTL_NODE(_net_link, 0, generic, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Generic link-management");

	SYSCTL_INT(_net_link, OID_AUTO, ifqmaxlen, CTLFLAG_RDTUN,
	&ifqmaxlen, 0, "max send queue size");
	Index: head/sys/net/if_bridge.c
	===================================================================
	--- head/sys/net/if_bridge.c
	+++ head/sys/net/if_bridge.c
	@@ -401,7 +401,8 @@
	};

	SYSCTL_DECL(_net_link);
	-static SYSCTL_NODE(_net_link, IFT_BRIDGE, bridge, CTLFLAG_RW, 0, "Bridge");
	+static SYSCTL_NODE(_net_link, IFT_BRIDGE, bridge, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bridge");

	/* only pass IP[46] packets when pfil is enabled */
	VNET_DEFINE_STATIC(int, pfil_onlyip) = 1;
	@@ -663,7 +664,7 @@
	return (error);
	}
	SYSCTL_PROC(_net_link_bridge, OID_AUTO, ipfw,
	- CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_VNET,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_VNET \| CTLFLAG_NEEDGIANT,
	&VNET_NAME(pfil_ipfw), 0, &sysctl_pfil_ipfw, "I",
	"Layer2 filter with IPFW");

	Index: head/sys/net/if_enc.c
	===================================================================
	--- head/sys/net/if_enc.c
	+++ head/sys/net/if_enc.c
	@@ -120,9 +120,12 @@
	#define V_filter_mask_out VNET(filter_mask_out)
	#define V_bpf_mask_out VNET(bpf_mask_out)

	-static SYSCTL_NODE(_net, OID_AUTO, enc, CTLFLAG_RW, 0, "enc sysctl");
	-static SYSCTL_NODE(_net_enc, OID_AUTO, in, CTLFLAG_RW, 0, "enc input sysctl");
	-static SYSCTL_NODE(_net_enc, OID_AUTO, out, CTLFLAG_RW, 0, "enc output sysctl");
	+static SYSCTL_NODE(_net, OID_AUTO, enc, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "enc sysctl");
	+static SYSCTL_NODE(_net_enc, OID_AUTO, in, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "enc input sysctl");
	+static SYSCTL_NODE(_net_enc, OID_AUTO, out, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "enc output sysctl");
	SYSCTL_INT(_net_enc_in, OID_AUTO, ipsec_filter_mask,
	CTLFLAG_RW \| CTLFLAG_VNET, &VNET_NAME(filter_mask_in), 0,
	"IPsec input firewall filter mask");
	Index: head/sys/net/if_epair.c
	===================================================================
	--- head/sys/net/if_epair.c
	+++ head/sys/net/if_epair.c
	@@ -81,7 +81,8 @@
	#include <net/vnet.h>

	SYSCTL_DECL(_net_link);
	-static SYSCTL_NODE(_net_link, OID_AUTO, epair, CTLFLAG_RW, 0, "epair sysctl");
	+static SYSCTL_NODE(_net_link, OID_AUTO, epair, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "epair sysctl");

	#ifdef EPAIR_DEBUG
	static int epair_debug = 0;
	@@ -132,8 +133,9 @@
	return (EINVAL);
	return (netisr_setqlimit(&epair_nh, qlimit));
	}
	-SYSCTL_PROC(_net_link_epair, OID_AUTO, netisr_maxqlen, CTLTYPE_INT\|CTLFLAG_RW,
	- 0, 0, sysctl_epair_netisr_maxqlen, "I",
	+SYSCTL_PROC(_net_link_epair, OID_AUTO, netisr_maxqlen,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, 0,
	+ sysctl_epair_netisr_maxqlen, "I",
	"Maximum if_epair(4) netisr \"hw\" queue length");

	struct epair_softc {
	Index: head/sys/net/if_ethersubr.c
	===================================================================
	--- head/sys/net/if_ethersubr.c
	+++ head/sys/net/if_ethersubr.c
	@@ -1052,7 +1052,8 @@
	#endif

	SYSCTL_DECL(_net_link);
	-SYSCTL_NODE(_net_link, IFT_ETHER, ether, CTLFLAG_RW, 0, "Ethernet");
	+SYSCTL_NODE(_net_link, IFT_ETHER, ether, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Ethernet");

	#if 0
	/*
	@@ -1334,9 +1335,10 @@
	return (m);
	}

	-static SYSCTL_NODE(_net_link, IFT_L2VLAN, vlan, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_link, IFT_L2VLAN, vlan, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"IEEE 802.1Q VLAN");
	-static SYSCTL_NODE(_net_link_vlan, PF_LINK, link, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_link_vlan, PF_LINK, link,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"for consistency");

	VNET_DEFINE_STATIC(int, soft_pad);
	Index: head/sys/net/if_gif.c
	===================================================================
	--- head/sys/net/if_gif.c
	+++ head/sys/net/if_gif.c
	@@ -114,7 +114,7 @@
	#define V_gif_cloner VNET(gif_cloner)

	SYSCTL_DECL(_net_link);
	-static SYSCTL_NODE(_net_link, IFT_GIF, gif, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_link, IFT_GIF, gif, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Generic Tunnel Interface");
	#ifndef MAX_GIF_NEST
	/*
	Index: head/sys/net/if_gre.c
	===================================================================
	--- head/sys/net/if_gre.c
	+++ head/sys/net/if_gre.c
	@@ -115,7 +115,7 @@
	static void gre_delete_tunnel(struct gre_softc *);

	SYSCTL_DECL(_net_link);
	-static SYSCTL_NODE(_net_link, IFT_TUNNEL, gre, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_link, IFT_TUNNEL, gre, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Generic Routing Encapsulation");
	#ifndef MAX_GRE_NEST
	/*
	Index: head/sys/net/if_lagg.c
	===================================================================
	--- head/sys/net/if_lagg.c
	+++ head/sys/net/if_lagg.c
	@@ -268,7 +268,7 @@
	};

	SYSCTL_DECL(_net_link);
	-SYSCTL_NODE(_net_link, OID_AUTO, lagg, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_net_link, OID_AUTO, lagg, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Link Aggregation");

	/* Allow input on any failover links */
	Index: head/sys/net/if_me.c
	===================================================================
	--- head/sys/net/if_me.c
	+++ head/sys/net/if_me.c
	@@ -124,7 +124,7 @@
	static void me_delete_tunnel(struct me_softc *);

	SYSCTL_DECL(_net_link);
	-static SYSCTL_NODE(_net_link, IFT_TUNNEL, me, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_link, IFT_TUNNEL, me, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Minimal Encapsulation for IP (RFC 2004)");
	#ifndef MAX_ME_NEST
	#define MAX_ME_NEST 1
	Index: head/sys/net/if_mib.c
	===================================================================
	--- head/sys/net/if_mib.c
	+++ head/sys/net/if_mib.c
	@@ -65,8 +65,9 @@
	*/

	SYSCTL_DECL(_net_link_generic);
	-static SYSCTL_NODE(_net_link_generic, IFMIB_SYSTEM, system, CTLFLAG_RW, 0,
	- "Variables global to all interfaces");
	+static SYSCTL_NODE(_net_link_generic, IFMIB_SYSTEM, system,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Variables global to all interfaces");

	SYSCTL_INT(_net_link_generic_system, IFMIB_IFCOUNT, ifcount,
	CTLFLAG_VNET \| CTLFLAG_RD, &VNET_NAME(if_index), 0,
	@@ -150,6 +151,7 @@
	return error;
	}

	-static SYSCTL_NODE(_net_link_generic, IFMIB_IFDATA, ifdata, CTLFLAG_RW,
	- sysctl_ifdata, "Interface table");
	+static SYSCTL_NODE(_net_link_generic, IFMIB_IFDATA, ifdata,
	+ CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sysctl_ifdata,
	+ "Interface table");

	Index: head/sys/net/if_stf.c
	===================================================================
	--- head/sys/net/if_stf.c
	+++ head/sys/net/if_stf.c
	@@ -122,7 +122,8 @@
	#include <security/mac/mac_framework.h>

	SYSCTL_DECL(_net_link);
	-static SYSCTL_NODE(_net_link, IFT_STF, stf, CTLFLAG_RW, 0, "6to4 Interface");
	+static SYSCTL_NODE(_net_link, IFT_STF, stf, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "6to4 Interface");

	static int stf_permit_rfc1918 = 0;
	SYSCTL_INT(_net_link_stf, OID_AUTO, permit_rfc1918, CTLFLAG_RWTUN,
	Index: head/sys/net/if_tuntap.c
	===================================================================
	--- head/sys/net/if_tuntap.c
	+++ head/sys/net/if_tuntap.c
	@@ -195,13 +195,13 @@

	SYSCTL_DECL(_net_link);
	/* tun */
	-static SYSCTL_NODE(_net_link, OID_AUTO, tun, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_link, OID_AUTO, tun, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"IP tunnel software network interface");
	SYSCTL_INT(_net_link_tun, OID_AUTO, devfs_cloning, CTLFLAG_RWTUN, &tundclone, 0,
	"Enable legacy devfs interface creation");

	/* tap */
	-static SYSCTL_NODE(_net_link, OID_AUTO, tap, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_link, OID_AUTO, tap, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Ethernet tunnel software network interface");
	SYSCTL_INT(_net_link_tap, OID_AUTO, user_open, CTLFLAG_RW, &tap_allow_uopen, 0,
	"Enable legacy devfs interface creation for all users");
	Index: head/sys/net/if_vxlan.c
	===================================================================
	--- head/sys/net/if_vxlan.c
	+++ head/sys/net/if_vxlan.c
	@@ -399,7 +399,7 @@
	static eventhandler_tag vxlan_ifdetach_event_tag;

	SYSCTL_DECL(_net_link);
	-SYSCTL_NODE(_net_link, OID_AUTO, vxlan, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_net_link, OID_AUTO, vxlan, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Virtual eXtensible Local Area Network");

	static int vxlan_legacy_port = 0;
	@@ -3060,10 +3060,10 @@
	sysctl_ctx_init(ctx);
	sc->vxl_sysctl_node = SYSCTL_ADD_NODE(ctx,
	SYSCTL_STATIC_CHILDREN(_net_link_vxlan), OID_AUTO, namebuf,
	- CTLFLAG_RD, NULL, "");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");

	node = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(sc->vxl_sysctl_node),
	- OID_AUTO, "ftable", CTLFLAG_RD, NULL, "");
	+ OID_AUTO, "ftable", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(node), OID_AUTO, "count",
	CTLFLAG_RD, &sc->vxl_ftable_cnt, 0,
	"Number of entries in fowarding table");
	@@ -3079,7 +3079,7 @@
	"Dump the forwarding table entries");

	node = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(sc->vxl_sysctl_node),
	- OID_AUTO, "stats", CTLFLAG_RD, NULL, "");
	+ OID_AUTO, "stats", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(node), OID_AUTO,
	"ftable_nospace", CTLFLAG_RD, &stats->ftable_nospace, 0,
	"Fowarding table reached maximum entries");
	Index: head/sys/net/iflib.c
	===================================================================
	--- head/sys/net/iflib.c
	+++ head/sys/net/iflib.c
	@@ -575,8 +575,8 @@
	#endif /* !INVARIANTS */
	#endif

	-static SYSCTL_NODE(_net, OID_AUTO, iflib, CTLFLAG_RD, 0,
	- "iflib driver parameters");
	+static SYSCTL_NODE(_net, OID_AUTO, iflib, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "iflib driver parameters");

	/*
	* XXX need to ensure that this can't accidentally cause the head to be moved backwards
	@@ -6280,7 +6280,7 @@
	info->iidi_value = value;
	SYSCTL_ADD_PROC(device_get_sysctl_ctx(ctx->ifc_dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(ctx->ifc_dev)),
	- OID_AUTO, name, CTLTYPE_INT\|CTLFLAG_RW,
	+ OID_AUTO, name, CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	info, 0, iflib_sysctl_int_delay, "I", description);
	}

	@@ -6542,7 +6542,7 @@
	ctx_list = device_get_sysctl_ctx(dev);
	child = SYSCTL_CHILDREN(device_get_sysctl_tree(dev));
	ctx->ifc_sysctl_node = node = SYSCTL_ADD_NODE(ctx_list, child, OID_AUTO, "iflib",
	- CTLFLAG_RD, NULL, "IFLIB fields");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "IFLIB fields");
	oid_list = SYSCTL_CHILDREN(node);

	SYSCTL_ADD_CONST_STRING(ctx_list, oid_list, OID_AUTO, "driver_version",
	@@ -6577,13 +6577,13 @@

	/* XXX change for per-queue sizes */
	SYSCTL_ADD_PROC(ctx_list, oid_list, OID_AUTO, "override_ntxds",
	- CTLTYPE_STRING\|CTLFLAG_RWTUN, ctx, IFLIB_NTXD_HANDLER,
	- mp_ndesc_handler, "A",
	- "list of # of TX descriptors to use, 0 = use default #");
	+ CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, ctx,
	+ IFLIB_NTXD_HANDLER, mp_ndesc_handler, "A",
	+ "list of # of TX descriptors to use, 0 = use default #");
	SYSCTL_ADD_PROC(ctx_list, oid_list, OID_AUTO, "override_nrxds",
	- CTLTYPE_STRING\|CTLFLAG_RWTUN, ctx, IFLIB_NRXD_HANDLER,
	- mp_ndesc_handler, "A",
	- "list of # of RX descriptors to use, 0 = use default #");
	+ CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, ctx,
	+ IFLIB_NRXD_HANDLER, mp_ndesc_handler, "A",
	+ "list of # of RX descriptors to use, 0 = use default #");
	}

	static void
	@@ -6616,7 +6616,7 @@
	for (i = 0, txq = ctx->ifc_txqs; i < scctx->isc_ntxqsets; i++, txq++) {
	snprintf(namebuf, NAME_BUFLEN, qfmt, i);
	queue_node = SYSCTL_ADD_NODE(ctx_list, child, OID_AUTO, namebuf,
	- CTLFLAG_RD, NULL, "Queue Name");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Queue Name");
	queue_list = SYSCTL_CHILDREN(queue_node);
	#if MEMORY_LOGGING
	SYSCTL_ADD_QUAD(ctx_list, queue_list, OID_AUTO, "txq_dequeued",
	@@ -6666,8 +6666,9 @@
	CTLFLAG_RD,
	&txq->ift_cleaned, "total cleaned");
	SYSCTL_ADD_PROC(ctx_list, queue_list, OID_AUTO, "ring_state",
	- CTLTYPE_STRING \| CTLFLAG_RD, __DEVOLATILE(uint64_t *, &txq->ift_br->state),
	- 0, mp_ring_state_handler, "A", "soft ring state");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ __DEVOLATILE(uint64_t *, &txq->ift_br->state), 0,
	+ mp_ring_state_handler, "A", "soft ring state");
	SYSCTL_ADD_COUNTER_U64(ctx_list, queue_list, OID_AUTO, "r_enqueues",
	CTLFLAG_RD, &txq->ift_br->enqueues,
	"# of enqueues to the mp_ring for this queue");
	@@ -6697,7 +6698,7 @@
	for (i = 0, rxq = ctx->ifc_rxqs; i < scctx->isc_nrxqsets; i++, rxq++) {
	snprintf(namebuf, NAME_BUFLEN, qfmt, i);
	queue_node = SYSCTL_ADD_NODE(ctx_list, child, OID_AUTO, namebuf,
	- CTLFLAG_RD, NULL, "Queue Name");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "Queue Name");
	queue_list = SYSCTL_CHILDREN(queue_node);
	if (sctx->isc_flags & IFLIB_HAS_RXCQ) {
	SYSCTL_ADD_U16(ctx_list, queue_list, OID_AUTO, "rxq_cq_cidx",
	@@ -6708,7 +6709,7 @@
	for (j = 0, fl = rxq->ifr_fl; j < rxq->ifr_nfl; j++, fl++) {
	snprintf(namebuf, NAME_BUFLEN, "rxq_fl%d", j);
	fl_node = SYSCTL_ADD_NODE(ctx_list, queue_list, OID_AUTO, namebuf,
	- CTLFLAG_RD, NULL, "freelist Name");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "freelist Name");
	fl_list = SYSCTL_CHILDREN(fl_node);
	SYSCTL_ADD_U16(ctx_list, fl_list, OID_AUTO, "pidx",
	CTLFLAG_RD,
	Index: head/sys/net/netisr.c
	===================================================================
	--- head/sys/net/netisr.c
	+++ head/sys/net/netisr.c
	@@ -127,7 +127,8 @@
	#define NETISR_WUNLOCK() rm_wunlock(&netisr_rmlock)
	/* #define NETISR_LOCKING */

	-static SYSCTL_NODE(_net, OID_AUTO, isr, CTLFLAG_RW, 0, "netisr");
	+static SYSCTL_NODE(_net, OID_AUTO, isr, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "netisr");

	/*-
	* Three global direct dispatch policies are supported:
	@@ -152,7 +153,8 @@
	#define NETISR_DISPATCH_POLICY_MAXSTR 20 /* Used for temporary buffers. */
	static u_int netisr_dispatch_policy = NETISR_DISPATCH_POLICY_DEFAULT;
	static int sysctl_netisr_dispatch_policy(SYSCTL_HANDLER_ARGS);
	-SYSCTL_PROC(_net_isr, OID_AUTO, dispatch, CTLTYPE_STRING \| CTLFLAG_RWTUN,
	+SYSCTL_PROC(_net_isr, OID_AUTO, dispatch,
	+ CTLTYPE_STRING \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT,
	0, 0, sysctl_netisr_dispatch_policy, "A",
	"netisr dispatch policy");

	Index: head/sys/net/raw_cb.c
	===================================================================
	--- head/sys/net/raw_cb.c
	+++ head/sys/net/raw_cb.c
	@@ -61,7 +61,7 @@
	struct mtx rawcb_mtx;
	VNET_DEFINE(struct rawcb_list_head, rawcb_list);

	-static SYSCTL_NODE(_net, OID_AUTO, raw, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net, OID_AUTO, raw, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Raw socket infrastructure");

	static u_long raw_sendspace = RAWSNDQ;
	Index: head/sys/net/route.c
	===================================================================
	--- head/sys/net/route.c
	+++ head/sys/net/route.c
	@@ -179,8 +179,10 @@
	return (error);
	}

	-SYSCTL_PROC(_net, OID_AUTO, my_fibnum, CTLTYPE_INT\|CTLFLAG_RD,
	- NULL, 0, &sysctl_my_fibnum, "I", "default FIB of caller");
	+SYSCTL_PROC(_net, OID_AUTO, my_fibnum,
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	+ &sysctl_my_fibnum, "I",
	+ "default FIB of caller");

	static __inline struct rib_head **
	rt_tables_get_rnh_ptr(int table, int fam)
	Index: head/sys/net/rss_config.c
	===================================================================
	--- head/sys/net/rss_config.c
	+++ head/sys/net/rss_config.c
	@@ -81,7 +81,8 @@
	*/

	SYSCTL_DECL(_net_inet);
	-SYSCTL_NODE(_net_inet, OID_AUTO, rss, CTLFLAG_RW, 0, "Receive-side steering");
	+SYSCTL_NODE(_net_inet, OID_AUTO, rss, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Receive-side steering");

	/*
	* Toeplitz is the only required hash function in the RSS spec, so use it by
	@@ -549,5 +550,5 @@
	return (error);
	}
	SYSCTL_PROC(_net_inet_rss, OID_AUTO, bucket_mapping,
	- CTLTYPE_STRING \| CTLFLAG_RD, NULL, 0,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	sysctl_rss_bucket_mapping, "", "RSS bucket -> CPU mapping");
	Index: head/sys/net/rtsock.c
	===================================================================
	--- head/sys/net/rtsock.c
	+++ head/sys/net/rtsock.c
	@@ -158,7 +158,8 @@
	#define RTSOCK_UNLOCK() mtx_unlock(&rtsock_mtx)
	#define RTSOCK_LOCK_ASSERT() mtx_assert(&rtsock_mtx, MA_OWNED)

	-static SYSCTL_NODE(_net, OID_AUTO, route, CTLFLAG_RD, 0, "");
	+static SYSCTL_NODE(_net, OID_AUTO, route, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "");

	struct walkarg {
	int w_tmemsize;
	@@ -211,7 +212,8 @@
	return (EINVAL);
	return (netisr_setqlimit(&rtsock_nh, qlimit));
	}
	-SYSCTL_PROC(_net_route, OID_AUTO, netisr_maxqlen, CTLTYPE_INT\|CTLFLAG_RW,
	+SYSCTL_PROC(_net_route, OID_AUTO, netisr_maxqlen,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	0, 0, sysctl_route_netisr_maxqlen, "I",
	"maximum routing socket dispatch queue length");

	Index: head/sys/net/vnet.h
	===================================================================
	--- head/sys/net/vnet.h
	+++ head/sys/net/vnet.h
	@@ -142,7 +142,8 @@
	sizeof(type) / sizeof(uint64_t)); \
	return (SYSCTL_OUT(req, &s, sizeof(type))); \
	} \
	-SYSCTL_PROC(parent, nbr, name, CTLFLAG_VNET \| CTLTYPE_OPAQUE \| CTLFLAG_RW, \
	+SYSCTL_PROC(parent, nbr, name, \
	+ CTLFLAG_VNET \| CTLTYPE_OPAQUE \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, \
	NULL, 0, array ## _sysctl, "I", desc)
	#endif /* SYSCTL_OID */

	Index: head/sys/netgraph/bluetooth/common/ng_bluetooth.c
	===================================================================
	--- head/sys/netgraph/bluetooth/common/ng_bluetooth.c
	+++ head/sys/netgraph/bluetooth/common/ng_bluetooth.c
	@@ -57,7 +57,8 @@
	* Define sysctl tree that shared by other parts of Bluetooth stack
	*/

	-SYSCTL_NODE(_net, OID_AUTO, bluetooth, CTLFLAG_RW, 0, "Bluetooth family");
	+SYSCTL_NODE(_net, OID_AUTO, bluetooth, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bluetooth family");
	SYSCTL_INT(_net_bluetooth, OID_AUTO, version,
	CTLFLAG_RD, SYSCTL_NULL_INT_PTR, NG_BLUETOOTH_VERSION, "Version of the stack");

	@@ -65,8 +66,8 @@
	* HCI
	*/

	-SYSCTL_NODE(_net_bluetooth, OID_AUTO, hci, CTLFLAG_RW,
	- 0, "Bluetooth HCI family");
	+SYSCTL_NODE(_net_bluetooth, OID_AUTO, hci, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bluetooth HCI family");

	static int
	bluetooth_set_hci_command_timeout_value(SYSCTL_HANDLER_ARGS)
	@@ -87,7 +88,7 @@
	} /* bluetooth_set_hci_command_timeout_value */

	SYSCTL_PROC(_net_bluetooth_hci, OID_AUTO, command_timeout,
	- CTLTYPE_INT \| CTLFLAG_RW,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&bluetooth_hci_command_timeout_value, 5,
	bluetooth_set_hci_command_timeout_value,
	"I", "HCI command timeout (sec)");
	@@ -111,7 +112,7 @@
	} /* bluetooth_set_hci_connect_timeout_value */

	SYSCTL_PROC(_net_bluetooth_hci, OID_AUTO, connection_timeout,
	- CTLTYPE_INT \| CTLFLAG_RW,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&bluetooth_hci_connect_timeout_value, 60,
	bluetooth_set_hci_connect_timeout_value,
	"I", "HCI connect timeout (sec)");
	@@ -124,8 +125,8 @@
	* L2CAP
	*/

	-SYSCTL_NODE(_net_bluetooth, OID_AUTO, l2cap, CTLFLAG_RW,
	- 0, "Bluetooth L2CAP family");
	+SYSCTL_NODE(_net_bluetooth, OID_AUTO, l2cap, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bluetooth L2CAP family");

	static int
	bluetooth_set_l2cap_rtx_timeout_value(SYSCTL_HANDLER_ARGS)
	@@ -147,7 +148,7 @@
	} /* bluetooth_set_l2cap_rtx_timeout_value */

	SYSCTL_PROC(_net_bluetooth_l2cap, OID_AUTO, rtx_timeout,
	- CTLTYPE_INT \| CTLFLAG_RW,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&bluetooth_l2cap_rtx_timeout_value, 60,
	bluetooth_set_l2cap_rtx_timeout_value,
	"I", "L2CAP RTX timeout (sec)");
	@@ -171,7 +172,7 @@
	} /* bluetooth_set_l2cap_ertx_timeout_value */

	SYSCTL_PROC(_net_bluetooth_l2cap, OID_AUTO, ertx_timeout,
	- CTLTYPE_INT \| CTLFLAG_RW,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&bluetooth_l2cap_ertx_timeout_value, 300,
	bluetooth_set_l2cap_ertx_timeout_value,
	"I", "L2CAP ERTX timeout (sec)");
	@@ -220,15 +221,15 @@
	* RFCOMM
	*/

	-SYSCTL_NODE(_net_bluetooth, OID_AUTO, rfcomm, CTLFLAG_RW,
	- 0, "Bluetooth RFCOMM family");
	+SYSCTL_NODE(_net_bluetooth, OID_AUTO, rfcomm, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bluetooth RFCOMM family");

	/*
	* SCO
	*/

	-SYSCTL_NODE(_net_bluetooth, OID_AUTO, sco, CTLFLAG_RW,
	- 0, "Bluetooth SCO family");
	+SYSCTL_NODE(_net_bluetooth, OID_AUTO, sco, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bluetooth SCO family");

	static int
	bluetooth_set_sco_rtx_timeout_value(SYSCTL_HANDLER_ARGS)
	@@ -249,7 +250,7 @@
	} /* bluetooth_set_sco_rtx_timeout_value */

	SYSCTL_PROC(_net_bluetooth_sco, OID_AUTO, rtx_timeout,
	- CTLTYPE_INT \| CTLFLAG_RW,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&bluetooth_sco_rtx_timeout_value, 60,
	bluetooth_set_sco_rtx_timeout_value,
	"I", "SCO RTX timeout (sec)");
	Index: head/sys/netgraph/bluetooth/socket/ng_btsocket.c
	===================================================================
	--- head/sys/netgraph/bluetooth/socket/ng_btsocket.c
	+++ head/sys/netgraph/bluetooth/socket/ng_btsocket.c
	@@ -234,14 +234,18 @@
	* Socket sysctl tree
	*/

	-SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW,
	- 0, "Bluetooth HCI sockets family");
	-SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW,
	- 0, "Bluetooth L2CAP sockets family");
	-SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, CTLFLAG_RW,
	- 0, "Bluetooth RFCOMM sockets family");
	-SYSCTL_NODE(_net_bluetooth_sco, OID_AUTO, sockets, CTLFLAG_RW,
	- 0, "Bluetooth SCO sockets family");
	+SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bluetooth HCI sockets family");
	+SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bluetooth L2CAP sockets family");
	+SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bluetooth RFCOMM sockets family");
	+SYSCTL_NODE(_net_bluetooth_sco, OID_AUTO, sockets,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bluetooth SCO sockets family");

	/*
	* Module
	Index: head/sys/netgraph/bluetooth/socket/ng_btsocket_hci_raw.c
	===================================================================
	--- head/sys/netgraph/bluetooth/socket/ng_btsocket_hci_raw.c
	+++ head/sys/netgraph/bluetooth/socket/ng_btsocket_hci_raw.c
	@@ -128,8 +128,9 @@

	/* Sysctl tree */
	SYSCTL_DECL(_net_bluetooth_hci_sockets);
	-static SYSCTL_NODE(_net_bluetooth_hci_sockets, OID_AUTO, raw, CTLFLAG_RW,
	- 0, "Bluetooth raw HCI sockets family");
	+static SYSCTL_NODE(_net_bluetooth_hci_sockets, OID_AUTO, raw,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bluetooth raw HCI sockets family");
	SYSCTL_UINT(_net_bluetooth_hci_sockets_raw, OID_AUTO, debug_level, CTLFLAG_RW,
	&ng_btsocket_hci_raw_debug_level, NG_BTSOCKET_WARN_LEVEL,
	"Bluetooth raw HCI sockets debug level");
	Index: head/sys/netgraph/bluetooth/socket/ng_btsocket_l2cap.c
	===================================================================
	--- head/sys/netgraph/bluetooth/socket/ng_btsocket_l2cap.c
	+++ head/sys/netgraph/bluetooth/socket/ng_btsocket_l2cap.c
	@@ -113,8 +113,9 @@

	/* Sysctl tree */
	SYSCTL_DECL(_net_bluetooth_l2cap_sockets);
	-static SYSCTL_NODE(_net_bluetooth_l2cap_sockets, OID_AUTO, seq, CTLFLAG_RW,
	- 0, "Bluetooth SEQPACKET L2CAP sockets family");
	+static SYSCTL_NODE(_net_bluetooth_l2cap_sockets, OID_AUTO, seq,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bluetooth SEQPACKET L2CAP sockets family");
	SYSCTL_UINT(_net_bluetooth_l2cap_sockets_seq, OID_AUTO, debug_level,
	CTLFLAG_RW,
	&ng_btsocket_l2cap_debug_level, NG_BTSOCKET_WARN_LEVEL,
	Index: head/sys/netgraph/bluetooth/socket/ng_btsocket_l2cap_raw.c
	===================================================================
	--- head/sys/netgraph/bluetooth/socket/ng_btsocket_l2cap_raw.c
	+++ head/sys/netgraph/bluetooth/socket/ng_btsocket_l2cap_raw.c
	@@ -128,8 +128,9 @@

	/* Sysctl tree */
	SYSCTL_DECL(_net_bluetooth_l2cap_sockets);
	-static SYSCTL_NODE(_net_bluetooth_l2cap_sockets, OID_AUTO, raw, CTLFLAG_RW,
	- 0, "Bluetooth raw L2CAP sockets family");
	+static SYSCTL_NODE(_net_bluetooth_l2cap_sockets, OID_AUTO, raw,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bluetooth raw L2CAP sockets family");
	SYSCTL_UINT(_net_bluetooth_l2cap_sockets_raw, OID_AUTO, debug_level,
	CTLFLAG_RW,
	&ng_btsocket_l2cap_raw_debug_level, NG_BTSOCKET_WARN_LEVEL,
	Index: head/sys/netgraph/bluetooth/socket/ng_btsocket_rfcomm.c
	===================================================================
	--- head/sys/netgraph/bluetooth/socket/ng_btsocket_rfcomm.c
	+++ head/sys/netgraph/bluetooth/socket/ng_btsocket_rfcomm.c
	@@ -205,8 +205,9 @@

	/* Sysctl tree */
	SYSCTL_DECL(_net_bluetooth_rfcomm_sockets);
	-static SYSCTL_NODE(_net_bluetooth_rfcomm_sockets, OID_AUTO, stream, CTLFLAG_RW,
	- 0, "Bluetooth STREAM RFCOMM sockets family");
	+static SYSCTL_NODE(_net_bluetooth_rfcomm_sockets, OID_AUTO, stream,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bluetooth STREAM RFCOMM sockets family");
	SYSCTL_UINT(_net_bluetooth_rfcomm_sockets_stream, OID_AUTO, debug_level,
	CTLFLAG_RW,
	&ng_btsocket_rfcomm_debug_level, NG_BTSOCKET_INFO_LEVEL,
	Index: head/sys/netgraph/bluetooth/socket/ng_btsocket_sco.c
	===================================================================
	--- head/sys/netgraph/bluetooth/socket/ng_btsocket_sco.c
	+++ head/sys/netgraph/bluetooth/socket/ng_btsocket_sco.c
	@@ -112,8 +112,9 @@

	/* Sysctl tree */
	SYSCTL_DECL(_net_bluetooth_sco_sockets);
	-static SYSCTL_NODE(_net_bluetooth_sco_sockets, OID_AUTO, seq, CTLFLAG_RW,
	- 0, "Bluetooth SEQPACKET SCO sockets family");
	+static SYSCTL_NODE(_net_bluetooth_sco_sockets, OID_AUTO, seq,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Bluetooth SEQPACKET SCO sockets family");
	SYSCTL_UINT(_net_bluetooth_sco_sockets_seq, OID_AUTO, debug_level,
	CTLFLAG_RW,
	&ng_btsocket_sco_debug_level, NG_BTSOCKET_WARN_LEVEL,
	Index: head/sys/netgraph/ng_base.c
	===================================================================
	--- head/sys/netgraph/ng_base.c
	+++ head/sys/netgraph/ng_base.c
	@@ -3250,7 +3250,8 @@
	(NULL)
	};
	DECLARE_MODULE(netgraph, netgraph_mod, SI_SUB_NETGRAPH, SI_ORDER_FIRST);
	-SYSCTL_NODE(_net, OID_AUTO, graph, CTLFLAG_RW, 0, "netgraph Family");
	+SYSCTL_NODE(_net, OID_AUTO, graph, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "netgraph Family");
	SYSCTL_INT(_net_graph, OID_AUTO, abi_version, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, NG_ABI_VERSION,"");
	SYSCTL_INT(_net_graph, OID_AUTO, msg_version, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, NG_VERSION, "");

	@@ -3384,8 +3385,10 @@
	return (0);
	}

	-SYSCTL_PROC(_debug, OID_AUTO, ng_dump_items, CTLTYPE_INT \| CTLFLAG_RW,
	- 0, sizeof(int), sysctl_debug_ng_dump_items, "I", "Number of allocated items");
	+SYSCTL_PROC(_debug, OID_AUTO, ng_dump_items,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, 0, sizeof(int),
	+ sysctl_debug_ng_dump_items, "I",
	+ "Number of allocated items");
	#endif /* NETGRAPH_DEBUG */

	/***********************************************************************
	Index: head/sys/netgraph/ng_iface.c
	===================================================================
	--- head/sys/netgraph/ng_iface.c
	+++ head/sys/netgraph/ng_iface.c
	@@ -93,7 +93,7 @@
	#define M_NETGRAPH_IFACE M_NETGRAPH
	#endif

	-static SYSCTL_NODE(_net_graph, OID_AUTO, iface, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_graph, OID_AUTO, iface, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Point to point netgraph interface");
	VNET_DEFINE_STATIC(int, ng_iface_max_nest) = 2;
	#define V_ng_iface_max_nest VNET(ng_iface_max_nest)
	Index: head/sys/netgraph/ng_mppc.c
	===================================================================
	--- head/sys/netgraph/ng_mppc.c
	+++ head/sys/netgraph/ng_mppc.c
	@@ -107,7 +107,8 @@
	*/
	#define MPPE_MAX_REKEY 1000

	-SYSCTL_NODE(_net_graph, OID_AUTO, mppe, CTLFLAG_RW, 0, "MPPE");
	+SYSCTL_NODE(_net_graph, OID_AUTO, mppe, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "MPPE");

	static int mppe_block_on_max_rekey = 0;
	SYSCTL_INT(_net_graph_mppe, OID_AUTO, block_on_max_rekey, CTLFLAG_RWTUN,
	Index: head/sys/netgraph/ng_pptpgre.c
	===================================================================
	--- head/sys/netgraph/ng_pptpgre.c
	+++ head/sys/netgraph/ng_pptpgre.c
	@@ -145,7 +145,8 @@
	#define SESSHASHSIZE 0x0020
	#define SESSHASH(x) (((x) ^ ((x) >> 8)) & (SESSHASHSIZE - 1))

	-SYSCTL_NODE(_net_graph, OID_AUTO, pptpgre, CTLFLAG_RW, 0, "PPTPGRE");
	+SYSCTL_NODE(_net_graph, OID_AUTO, pptpgre, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "PPTPGRE");

	/*
	* Reorder queue maximum length. Zero disables reorder.
	Index: head/sys/netgraph/ng_socket.c
	===================================================================
	--- head/sys/netgraph/ng_socket.c
	+++ head/sys/netgraph/ng_socket.c
	@@ -1208,8 +1208,10 @@
	VNET_DOMAIN_SET(ng);

	SYSCTL_INT(_net_graph, OID_AUTO, family, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, AF_NETGRAPH, "");
	-static SYSCTL_NODE(_net_graph, OID_AUTO, data, CTLFLAG_RW, 0, "DATA");
	+static SYSCTL_NODE(_net_graph, OID_AUTO, data, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "DATA");
	SYSCTL_INT(_net_graph_data, OID_AUTO, proto, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, NG_DATA, "");
	-static SYSCTL_NODE(_net_graph, OID_AUTO, control, CTLFLAG_RW, 0, "CONTROL");
	+static SYSCTL_NODE(_net_graph, OID_AUTO, control, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "CONTROL");
	SYSCTL_INT(_net_graph_control, OID_AUTO, proto, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, NG_CONTROL, "");

	Index: head/sys/netinet/accf_http.c
	===================================================================
	--- head/sys/netinet/accf_http.c
	+++ head/sys/netinet/accf_http.c
	@@ -71,8 +71,9 @@

	static int parse_http_version = 1;

	-static SYSCTL_NODE(_net_inet_accf, OID_AUTO, http, CTLFLAG_RW, 0,
	-"HTTP accept filter");
	+static SYSCTL_NODE(_net_inet_accf, OID_AUTO, http,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "HTTP accept filter");
	SYSCTL_INT(_net_inet_accf_http, OID_AUTO, parsehttpversion, CTLFLAG_RW,
	&parse_http_version, 1,
	"Parse http version so that non 1.x requests work");
	Index: head/sys/netinet/cc/cc.c
	===================================================================
	--- head/sys/netinet/cc/cc.c
	+++ head/sys/netinet/cc/cc.c
	@@ -317,14 +317,16 @@
	SYSINIT(cc, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_FIRST, cc_init, NULL);

	/* Declare sysctl tree and populate it. */
	-SYSCTL_NODE(_net_inet_tcp, OID_AUTO, cc, CTLFLAG_RW, NULL,
	+SYSCTL_NODE(_net_inet_tcp, OID_AUTO, cc, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	"Congestion control related settings");

	SYSCTL_PROC(_net_inet_tcp_cc, OID_AUTO, algorithm,
	- CTLFLAG_VNET \| CTLTYPE_STRING \| CTLFLAG_RW,
	- NULL, 0, cc_default_algo, "A", "Default congestion control algorithm");
	+ CTLFLAG_VNET \| CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ NULL, 0, cc_default_algo, "A",
	+ "Default congestion control algorithm");

	-SYSCTL_PROC(_net_inet_tcp_cc, OID_AUTO, available, CTLTYPE_STRING\|CTLFLAG_RD,
	+SYSCTL_PROC(_net_inet_tcp_cc, OID_AUTO, available,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	NULL, 0, cc_list_available, "A",
	"List available congestion control algorithms");

	Index: head/sys/netinet/cc/cc_cdg.c
	===================================================================
	--- head/sys/netinet/cc/cc_cdg.c
	+++ head/sys/netinet/cc/cc_cdg.c
	@@ -670,7 +670,7 @@
	cdg_init_vnet, NULL);

	SYSCTL_DECL(_net_inet_tcp_cc_cdg);
	-SYSCTL_NODE(_net_inet_tcp_cc, OID_AUTO, cdg, CTLFLAG_RW, NULL,
	+SYSCTL_NODE(_net_inet_tcp_cc, OID_AUTO, cdg, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	"CAIA delay-gradient congestion control related settings");

	SYSCTL_STRING(_net_inet_tcp_cc_cdg, OID_AUTO, version,
	@@ -683,19 +683,19 @@
	"alpha_inc RTTs during congestion avoidance mode.");

	SYSCTL_PROC(_net_inet_tcp_cc_cdg, OID_AUTO, beta_delay,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW, &VNET_NAME(cdg_beta_delay), 70,
	- &cdg_beta_handler, "IU",
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(cdg_beta_delay), 70, &cdg_beta_handler, "IU",
	"Delay-based window decrease factor as a percentage "
	"(on delay-based backoff, w = w * beta_delay / 100)");

	SYSCTL_PROC(_net_inet_tcp_cc_cdg, OID_AUTO, beta_loss,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW, &VNET_NAME(cdg_beta_loss), 50,
	- &cdg_beta_handler, "IU",
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(cdg_beta_loss), 50, &cdg_beta_handler, "IU",
	"Loss-based window decrease factor as a percentage "
	"(on loss-based backoff, w = w * beta_loss / 100)");

	SYSCTL_PROC(_net_inet_tcp_cc_cdg, OID_AUTO, exp_backoff_scale,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW,
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&VNET_NAME(cdg_exp_backoff_scale), 2, &cdg_exp_backoff_scale_handler, "IU",
	"Scaling parameter for the probabilistic exponential backoff");

	Index: head/sys/netinet/cc/cc_chd.c
	===================================================================
	--- head/sys/netinet/cc/cc_chd.c
	+++ head/sys/netinet/cc/cc_chd.c
	@@ -465,21 +465,21 @@
	}

	SYSCTL_DECL(_net_inet_tcp_cc_chd);
	-SYSCTL_NODE(_net_inet_tcp_cc, OID_AUTO, chd, CTLFLAG_RW, NULL,
	+SYSCTL_NODE(_net_inet_tcp_cc, OID_AUTO, chd, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	"CAIA Hamilton delay-based congestion control related settings");

	SYSCTL_PROC(_net_inet_tcp_cc_chd, OID_AUTO, loss_fair,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW,
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&VNET_NAME(chd_loss_fair), 1, &chd_loss_fair_handler,
	"IU", "Flag to enable shadow window functionality.");

	SYSCTL_PROC(_net_inet_tcp_cc_chd, OID_AUTO, pmax,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW,
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&VNET_NAME(chd_pmax), 5, &chd_pmax_handler,
	"IU", "Per RTT maximum backoff probability as a percentage");

	SYSCTL_PROC(_net_inet_tcp_cc_chd, OID_AUTO, queue_threshold,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW,
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&VNET_NAME(chd_qthresh), 20, &chd_qthresh_handler,
	"IU", "Queueing congestion threshold in ticks");

	Index: head/sys/netinet/cc/cc_dctcp.c
	===================================================================
	--- head/sys/netinet/cc/cc_dctcp.c
	+++ head/sys/netinet/cc/cc_dctcp.c
	@@ -446,22 +446,23 @@
	}

	SYSCTL_DECL(_net_inet_tcp_cc_dctcp);
	-SYSCTL_NODE(_net_inet_tcp_cc, OID_AUTO, dctcp, CTLFLAG_RW, NULL,
	+SYSCTL_NODE(_net_inet_tcp_cc, OID_AUTO, dctcp,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	"dctcp congestion control related settings");

	SYSCTL_PROC(_net_inet_tcp_cc_dctcp, OID_AUTO, alpha,
	- CTLFLAG_VNET\|CTLTYPE_UINT\|CTLFLAG_RW, &VNET_NAME(dctcp_alpha), 0,
	- &dctcp_alpha_handler,
	- "IU", "dctcp alpha parameter at start of session");
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(dctcp_alpha), 0, &dctcp_alpha_handler, "IU",
	+ "dctcp alpha parameter at start of session");

	SYSCTL_PROC(_net_inet_tcp_cc_dctcp, OID_AUTO, shift_g,
	- CTLFLAG_VNET\|CTLTYPE_UINT\|CTLFLAG_RW, &VNET_NAME(dctcp_shift_g), 4,
	- &dctcp_shift_g_handler,
	- "IU", "dctcp shift parameter");
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(dctcp_shift_g), 4, &dctcp_shift_g_handler, "IU",
	+ "dctcp shift parameter");

	SYSCTL_PROC(_net_inet_tcp_cc_dctcp, OID_AUTO, slowstart,
	- CTLFLAG_VNET\|CTLTYPE_UINT\|CTLFLAG_RW, &VNET_NAME(dctcp_slowstart), 0,
	- &dctcp_slowstart_handler,
	- "IU", "half CWND reduction after the first slow start");
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(dctcp_slowstart), 0, &dctcp_slowstart_handler, "IU",
	+ "half CWND reduction after the first slow start");

	DECLARE_CC_MODULE(dctcp, &dctcp_cc_algo);
	Index: head/sys/netinet/cc/cc_hd.c
	===================================================================
	--- head/sys/netinet/cc/cc_hd.c
	+++ head/sys/netinet/cc/cc_hd.c
	@@ -232,21 +232,23 @@
	}

	SYSCTL_DECL(_net_inet_tcp_cc_hd);
	-SYSCTL_NODE(_net_inet_tcp_cc, OID_AUTO, hd, CTLFLAG_RW, NULL,
	+SYSCTL_NODE(_net_inet_tcp_cc, OID_AUTO, hd, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	"Hamilton delay-based congestion control related settings");

	SYSCTL_PROC(_net_inet_tcp_cc_hd, OID_AUTO, queue_threshold,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW, &VNET_NAME(hd_qthresh), 20,
	- &hd_qthresh_handler, "IU", "queueing congestion threshold (qth) in ticks");
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(hd_qthresh), 20, &hd_qthresh_handler, "IU",
	+ "queueing congestion threshold (qth) in ticks");

	SYSCTL_PROC(_net_inet_tcp_cc_hd, OID_AUTO, pmax,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW, &VNET_NAME(hd_pmax), 5,
	- &hd_pmax_handler, "IU",
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(hd_pmax), 5, &hd_pmax_handler, "IU",
	"per packet maximum backoff probability as a percentage");

	SYSCTL_PROC(_net_inet_tcp_cc_hd, OID_AUTO, queue_min,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW, &VNET_NAME(hd_qmin), 5,
	- &hd_qmin_handler, "IU", "minimum queueing delay threshold (qmin) in ticks");
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(hd_qmin), 5, &hd_qmin_handler, "IU",
	+ "minimum queueing delay threshold (qmin) in ticks");

	DECLARE_CC_MODULE(hd, &hd_cc_algo);
	MODULE_DEPEND(hd, ertt, 1, 1, 1);
	Index: head/sys/netinet/cc/cc_htcp.c
	===================================================================
	--- head/sys/netinet/cc/cc_htcp.c
	+++ head/sys/netinet/cc/cc_htcp.c
	@@ -520,8 +520,8 @@


	SYSCTL_DECL(_net_inet_tcp_cc_htcp);
	-SYSCTL_NODE(_net_inet_tcp_cc, OID_AUTO, htcp, CTLFLAG_RW,
	- NULL, "H-TCP related settings");
	+SYSCTL_NODE(_net_inet_tcp_cc, OID_AUTO, htcp, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ "H-TCP related settings");
	SYSCTL_UINT(_net_inet_tcp_cc_htcp, OID_AUTO, adaptive_backoff,
	CTLFLAG_VNET \| CTLFLAG_RW, &VNET_NAME(htcp_adaptive_backoff), 0,
	"enable H-TCP adaptive backoff");
	Index: head/sys/netinet/cc/cc_newreno.c
	===================================================================
	--- head/sys/netinet/cc/cc_newreno.c
	+++ head/sys/netinet/cc/cc_newreno.c
	@@ -381,17 +381,18 @@
	}

	SYSCTL_DECL(_net_inet_tcp_cc_newreno);
	-SYSCTL_NODE(_net_inet_tcp_cc, OID_AUTO, newreno, CTLFLAG_RW, NULL,
	+SYSCTL_NODE(_net_inet_tcp_cc, OID_AUTO, newreno,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	"New Reno related settings");

	SYSCTL_PROC(_net_inet_tcp_cc_newreno, OID_AUTO, beta,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW,
	- &VNET_NAME(newreno_beta), 3, &newreno_beta_handler, "IU",
	- "New Reno beta, specified as number between 1 and 100");
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(newreno_beta), 3, &newreno_beta_handler, "IU",
	+ "New Reno beta, specified as number between 1 and 100");

	SYSCTL_PROC(_net_inet_tcp_cc_newreno, OID_AUTO, beta_ecn,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW,
	- &VNET_NAME(newreno_beta_ecn), 3, &newreno_beta_handler, "IU",
	- "New Reno beta ecn, specified as number between 1 and 100");
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(newreno_beta_ecn), 3, &newreno_beta_handler, "IU",
	+ "New Reno beta ecn, specified as number between 1 and 100");

	DECLARE_CC_MODULE(newreno, &newreno_cc_algo);
	Index: head/sys/netinet/cc/cc_vegas.c
	===================================================================
	--- head/sys/netinet/cc/cc_vegas.c
	+++ head/sys/netinet/cc/cc_vegas.c
	@@ -286,16 +286,17 @@
	}

	SYSCTL_DECL(_net_inet_tcp_cc_vegas);
	-SYSCTL_NODE(_net_inet_tcp_cc, OID_AUTO, vegas, CTLFLAG_RW, NULL,
	+SYSCTL_NODE(_net_inet_tcp_cc, OID_AUTO, vegas,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	"Vegas related settings");

	SYSCTL_PROC(_net_inet_tcp_cc_vegas, OID_AUTO, alpha,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW,
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&VNET_NAME(vegas_alpha), 1, &vegas_alpha_handler, "IU",
	"vegas alpha, specified as number of \"buffers\" (0 < alpha < beta)");

	SYSCTL_PROC(_net_inet_tcp_cc_vegas, OID_AUTO, beta,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW,
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&VNET_NAME(vegas_beta), 3, &vegas_beta_handler, "IU",
	"vegas beta, specified as number of \"buffers\" (0 < alpha < beta)");

	Index: head/sys/netinet/if_ether.c
	===================================================================
	--- head/sys/netinet/if_ether.c
	+++ head/sys/netinet/if_ether.c
	@@ -91,8 +91,12 @@
	};

	SYSCTL_DECL(_net_link_ether);
	-static SYSCTL_NODE(_net_link_ether, PF_INET, inet, CTLFLAG_RW, 0, "");
	-static SYSCTL_NODE(_net_link_ether, PF_ARP, arp, CTLFLAG_RW, 0, "");
	+static SYSCTL_NODE(_net_link_ether, PF_INET, inet,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "");
	+static SYSCTL_NODE(_net_link_ether, PF_ARP, arp,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "");

	/* timer values */
	VNET_DEFINE_STATIC(int, arpt_keep) = (2060); / once resolved, good for 20
	Index: head/sys/netinet/in_mcast.c
	===================================================================
	--- head/sys/netinet/in_mcast.c
	+++ head/sys/netinet/in_mcast.c
	@@ -177,7 +177,8 @@
	static int inp_set_source_filters(struct inpcb , struct sockopt );
	static int sysctl_ip_mcast_filters(SYSCTL_HANDLER_ARGS);

	-static SYSCTL_NODE(_net_inet_ip, OID_AUTO, mcast, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_inet_ip, OID_AUTO, mcast,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"IPv4 multicast");

	static u_long in_mcast_maxgrpsrc = IP_MAX_GROUP_SRC_FILTER;
	Index: head/sys/netinet/in_pcb.c
	===================================================================
	--- head/sys/netinet/in_pcb.c
	+++ head/sys/netinet/in_pcb.c
	@@ -172,27 +172,34 @@

	#undef RANGECHK

	-static SYSCTL_NODE(_net_inet_ip, IPPROTO_IP, portrange, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_inet_ip, IPPROTO_IP, portrange,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"IP Ports");

	SYSCTL_PROC(_net_inet_ip_portrange, OID_AUTO, lowfirst,
	- CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW,
	- &VNET_NAME(ipport_lowfirstauto), 0, &sysctl_net_ipport_check, "I", "");
	+ CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(ipport_lowfirstauto), 0, &sysctl_net_ipport_check, "I",
	+ "");
	SYSCTL_PROC(_net_inet_ip_portrange, OID_AUTO, lowlast,
	- CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW,
	- &VNET_NAME(ipport_lowlastauto), 0, &sysctl_net_ipport_check, "I", "");
	+ CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(ipport_lowlastauto), 0, &sysctl_net_ipport_check, "I",
	+ "");
	SYSCTL_PROC(_net_inet_ip_portrange, OID_AUTO, first,
	- CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW,
	- &VNET_NAME(ipport_firstauto), 0, &sysctl_net_ipport_check, "I", "");
	+ CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(ipport_firstauto), 0, &sysctl_net_ipport_check, "I",
	+ "");
	SYSCTL_PROC(_net_inet_ip_portrange, OID_AUTO, last,
	- CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW,
	- &VNET_NAME(ipport_lastauto), 0, &sysctl_net_ipport_check, "I", "");
	+ CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(ipport_lastauto), 0, &sysctl_net_ipport_check, "I",
	+ "");
	SYSCTL_PROC(_net_inet_ip_portrange, OID_AUTO, hifirst,
	- CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW,
	- &VNET_NAME(ipport_hifirstauto), 0, &sysctl_net_ipport_check, "I", "");
	+ CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(ipport_hifirstauto), 0, &sysctl_net_ipport_check, "I",
	+ "");
	SYSCTL_PROC(_net_inet_ip_portrange, OID_AUTO, hilast,
	- CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW,
	- &VNET_NAME(ipport_hilastauto), 0, &sysctl_net_ipport_check, "I", "");
	+ CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(ipport_hilastauto), 0, &sysctl_net_ipport_check, "I",
	+ "");
	SYSCTL_INT(_net_inet_ip_portrange, OID_AUTO, reservedhigh,
	CTLFLAG_VNET \| CTLFLAG_RW \| CTLFLAG_SECURE,
	&VNET_NAME(ipport_reservedhigh), 0, "");
	@@ -216,7 +223,7 @@
	counter_u64_t rate_limit_alloc_fail;
	counter_u64_t rate_limit_set_ok;

	-static SYSCTL_NODE(_net_inet_ip, OID_AUTO, rl, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_net_inet_ip, OID_AUTO, rl, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"IP Rate Limiting");
	SYSCTL_COUNTER_U64(_net_inet_ip_rl, OID_AUTO, active, CTLFLAG_RD,
	&rate_limit_active, "Active rate limited connections");
	Index: head/sys/netinet/in_proto.c
	===================================================================
	--- head/sys/netinet/in_proto.c
	+++ head/sys/netinet/in_proto.c
	@@ -320,25 +320,37 @@
	VNET_DOMAIN_SET(inet);
	#endif /* INET */

	-SYSCTL_NODE(_net, PF_INET, inet, CTLFLAG_RW, 0,
	- "Internet Family");
	+SYSCTL_NODE(_net, PF_INET, inet, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Internet Family");

	-SYSCTL_NODE(_net_inet, IPPROTO_IP, ip, CTLFLAG_RW, 0, "IP");
	-SYSCTL_NODE(_net_inet, IPPROTO_ICMP, icmp, CTLFLAG_RW, 0, "ICMP");
	-SYSCTL_NODE(_net_inet, IPPROTO_UDP, udp, CTLFLAG_RW, 0, "UDP");
	-SYSCTL_NODE(_net_inet, IPPROTO_TCP, tcp, CTLFLAG_RW, 0, "TCP");
	+SYSCTL_NODE(_net_inet, IPPROTO_IP, ip, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "IP");
	+SYSCTL_NODE(_net_inet, IPPROTO_ICMP, icmp, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "ICMP");
	+SYSCTL_NODE(_net_inet, IPPROTO_UDP, udp, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "UDP");
	+SYSCTL_NODE(_net_inet, IPPROTO_TCP, tcp, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "TCP");
	#ifdef SCTP
	-SYSCTL_NODE(_net_inet, IPPROTO_SCTP, sctp, CTLFLAG_RW, 0, "SCTP");
	+SYSCTL_NODE(_net_inet, IPPROTO_SCTP, sctp, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "SCTP");
	#endif
	-SYSCTL_NODE(_net_inet, IPPROTO_IGMP, igmp, CTLFLAG_RW, 0, "IGMP");
	+SYSCTL_NODE(_net_inet, IPPROTO_IGMP, igmp, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "IGMP");
	#if defined(IPSEC) \|\| defined(IPSEC_SUPPORT)
	/* XXX no protocol # to use, pick something "reserved" */
	-SYSCTL_NODE(_net_inet, 253, ipsec, CTLFLAG_RW, 0, "IPSEC");
	-SYSCTL_NODE(_net_inet, IPPROTO_AH, ah, CTLFLAG_RW, 0, "AH");
	-SYSCTL_NODE(_net_inet, IPPROTO_ESP, esp, CTLFLAG_RW, 0, "ESP");
	-SYSCTL_NODE(_net_inet, IPPROTO_IPCOMP, ipcomp, CTLFLAG_RW, 0, "IPCOMP");
	-SYSCTL_NODE(_net_inet, IPPROTO_IPIP, ipip, CTLFLAG_RW, 0, "IPIP");
	+SYSCTL_NODE(_net_inet, 253, ipsec, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "IPSEC");
	+SYSCTL_NODE(_net_inet, IPPROTO_AH, ah, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "AH");
	+SYSCTL_NODE(_net_inet, IPPROTO_ESP, esp, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "ESP");
	+SYSCTL_NODE(_net_inet, IPPROTO_IPCOMP, ipcomp, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "IPCOMP");
	+SYSCTL_NODE(_net_inet, IPPROTO_IPIP, ipip, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "IPIP");
	#endif /* IPSEC */
	-SYSCTL_NODE(_net_inet, IPPROTO_RAW, raw, CTLFLAG_RW, 0, "RAW");
	-SYSCTL_NODE(_net_inet, OID_AUTO, accf, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_net_inet, IPPROTO_RAW, raw, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "RAW");
	+SYSCTL_NODE(_net_inet, OID_AUTO, accf, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Accept filters");
	Index: head/sys/netinet/ip_divert.c
	===================================================================
	--- head/sys/netinet/ip_divert.c
	+++ head/sys/netinet/ip_divert.c
	@@ -737,10 +737,13 @@
	}

	#ifdef SYSCTL_NODE
	-static SYSCTL_NODE(_net_inet, IPPROTO_DIVERT, divert, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_inet, IPPROTO_DIVERT, divert,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"IPDIVERT");
	-SYSCTL_PROC(_net_inet_divert, OID_AUTO, pcblist, CTLTYPE_OPAQUE \| CTLFLAG_RD,
	- NULL, 0, div_pcblist, "S,xinpcb", "List of active divert sockets");
	+SYSCTL_PROC(_net_inet_divert, OID_AUTO, pcblist,
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ NULL, 0, div_pcblist, "S,xinpcb",
	+ "List of active divert sockets");
	#endif

	struct pr_usrreqs div_usrreqs = {
	Index: head/sys/netinet/ip_id.c
	===================================================================
	--- head/sys/netinet/ip_id.c
	+++ head/sys/netinet/ip_id.c
	@@ -137,14 +137,14 @@

	SYSCTL_DECL(_net_inet_ip);
	SYSCTL_PROC(_net_inet_ip, OID_AUTO, random_id,
	- CTLTYPE_INT \| CTLFLAG_VNET \| CTLFLAG_RW,
	+ CTLTYPE_INT \| CTLFLAG_VNET \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	&VNET_NAME(ip_do_randomid), 0, sysctl_ip_randomid, "IU",
	"Assign random ip_id values");
	SYSCTL_INT(_net_inet_ip, OID_AUTO, rfc6864, CTLFLAG_VNET \| CTLFLAG_RW,
	&VNET_NAME(ip_rfc6864), 0,
	"Use constant IP ID for atomic datagrams");
	SYSCTL_PROC(_net_inet_ip, OID_AUTO, random_id_period,
	- CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_VNET,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_VNET \| CTLFLAG_MPSAFE,
	&VNET_NAME(array_size), 0, sysctl_ip_id_change, "IU", "IP ID Array size");
	SYSCTL_INT(_net_inet_ip, OID_AUTO, random_id_collisions,
	CTLFLAG_RD \| CTLFLAG_VNET,
	Index: head/sys/netinet/ip_input.c
	===================================================================
	--- head/sys/netinet/ip_input.c
	+++ head/sys/netinet/ip_input.c
	@@ -230,7 +230,8 @@
	return (netisr_setqlimit(&ip_nh, qlimit));
	}
	SYSCTL_PROC(_net_inet_ip, IPCTL_INTRQMAXLEN, intr_queue_maxlen,
	- CTLTYPE_INT\|CTLFLAG_RW, 0, 0, sysctl_netinet_intr_queue_maxlen, "I",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, 0, 0,
	+ sysctl_netinet_intr_queue_maxlen, "I",
	"Maximum size of the IP input queue");

	static int
	@@ -251,7 +252,8 @@
	}

	SYSCTL_PROC(_net_inet_ip, IPCTL_INTRQDROPS, intr_queue_drops,
	- CTLTYPE_INT\|CTLFLAG_RD, 0, 0, sysctl_netinet_intr_queue_drops, "I",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ 0, 0, sysctl_netinet_intr_queue_drops, "I",
	"Number of packets dropped from the IP input queue");

	#ifdef RSS
	@@ -269,7 +271,8 @@
	return (netisr_setqlimit(&ip_direct_nh, qlimit));
	}
	SYSCTL_PROC(_net_inet_ip, IPCTL_INTRDQMAXLEN, intr_direct_queue_maxlen,
	- CTLTYPE_INT\|CTLFLAG_RW, 0, 0, sysctl_netinet_intr_direct_queue_maxlen,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ 0, 0, sysctl_netinet_intr_direct_queue_maxlen,
	"I", "Maximum size of the IP direct input queue");

	static int
	@@ -290,7 +293,8 @@
	}

	SYSCTL_PROC(_net_inet_ip, IPCTL_INTRDQDROPS, intr_direct_queue_drops,
	- CTLTYPE_INT\|CTLFLAG_RD, 0, 0, sysctl_netinet_intr_direct_queue_drops, "I",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, 0,
	+ sysctl_netinet_intr_direct_queue_drops, "I",
	"Number of packets dropped from the IP direct input queue");
	#endif /* RSS */

	Index: head/sys/netinet/ip_mroute.c
	===================================================================
	--- head/sys/netinet/ip_mroute.c
	+++ head/sys/netinet/ip_mroute.c
	@@ -237,7 +237,8 @@
	VNET_PCPUSTAT_SYSINIT(pimstat);
	VNET_PCPUSTAT_SYSUNINIT(pimstat);

	-SYSCTL_NODE(_net_inet, IPPROTO_PIM, pim, CTLFLAG_RW, 0, "PIM");
	+SYSCTL_NODE(_net_inet, IPPROTO_PIM, pim, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "PIM");
	SYSCTL_VNET_PCPUSTAT(_net_inet_pim, PIMCTL_STATS, stats, struct pimstat,
	pimstat, "PIM Statistics (struct pimstat, netinet/pim_var.h)");

	@@ -2797,8 +2798,9 @@
	return (error);
	}

	-static SYSCTL_NODE(_net_inet_ip, OID_AUTO, mfctable, CTLFLAG_RD,
	- sysctl_mfctable, "IPv4 Multicast Forwarding Table "
	+static SYSCTL_NODE(_net_inet_ip, OID_AUTO, mfctable,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, sysctl_mfctable,
	+ "IPv4 Multicast Forwarding Table "
	"(struct *mfc[mfchashsize], netinet/ip_mroute.h)");

	static void
	Index: head/sys/netinet/ip_reass.c
	===================================================================
	--- head/sys/netinet/ip_reass.c
	+++ head/sys/netinet/ip_reass.c
	@@ -147,8 +147,9 @@

	VNET_DEFINE_STATIC(uma_zone_t, ipq_zone);
	#define V_ipq_zone VNET(ipq_zone)
	-SYSCTL_PROC(_net_inet_ip, OID_AUTO, maxfragpackets, CTLFLAG_VNET \|
	- CTLTYPE_INT \| CTLFLAG_RW, NULL, 0, sysctl_maxfragpackets, "I",
	+SYSCTL_PROC(_net_inet_ip, OID_AUTO, maxfragpackets,
	+ CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ NULL, 0, sysctl_maxfragpackets, "I",
	"Maximum number of IPv4 fragment reassembly queue entries");
	SYSCTL_UMA_CUR(_net_inet_ip, OID_AUTO, fragpackets, CTLFLAG_VNET,
	&VNET_NAME(ipq_zone),
	Index: head/sys/netinet/libalias/alias.c
	===================================================================
	--- head/sys/netinet/libalias/alias.c
	+++ head/sys/netinet/libalias/alias.c
	@@ -153,7 +153,8 @@

	SYSCTL_DECL(_net_inet);
	SYSCTL_DECL(_net_inet_ip);
	-SYSCTL_NODE(_net_inet_ip, OID_AUTO, alias, CTLFLAG_RW, NULL, "Libalias sysctl API");
	+SYSCTL_NODE(_net_inet_ip, OID_AUTO, alias, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ "Libalias sysctl API");

	#endif

	Index: head/sys/netinet/netdump/netdump_client.c
	===================================================================
	--- head/sys/netinet/netdump/netdump_client.c
	+++ head/sys/netinet/netdump/netdump_client.c
	@@ -131,15 +131,17 @@

	FEATURE(netdump, "Netdump client support");

	-static SYSCTL_NODE(_net, OID_AUTO, netdump, CTLFLAG_RD, NULL,
	+static SYSCTL_NODE(_net, OID_AUTO, netdump, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"netdump parameters");

	static int nd_debug;
	SYSCTL_INT(_net_netdump, OID_AUTO, debug, CTLFLAG_RWTUN,
	&nd_debug, 0,
	"Debug message verbosity");
	-SYSCTL_PROC(_net_netdump, OID_AUTO, enabled, CTLFLAG_RD \| CTLTYPE_INT, NULL, 0,
	- netdump_enabled_sysctl, "I", "netdump configuration status");
	+SYSCTL_PROC(_net_netdump, OID_AUTO, enabled,
	+ CTLFLAG_RD \| CTLTYPE_INT \| CTLFLAG_MPSAFE, NULL, 0,
	+ netdump_enabled_sysctl, "I",
	+ "netdump configuration status");
	static char nd_path[MAXPATHLEN];
	SYSCTL_STRING(_net_netdump, OID_AUTO, path, CTLFLAG_RW,
	nd_path, sizeof(nd_path),
	Index: head/sys/netinet/raw_ip.c
	===================================================================
	--- head/sys/netinet/raw_ip.c
	+++ head/sys/netinet/raw_ip.c
	@@ -1137,8 +1137,9 @@
	}

	SYSCTL_PROC(_net_inet_raw, OID_AUTO/XXX/, pcblist,
	- CTLTYPE_OPAQUE \| CTLFLAG_RD, NULL, 0,
	- rip_pcblist, "S,xinpcb", "List of active raw IP sockets");
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	+ rip_pcblist, "S,xinpcb",
	+ "List of active raw IP sockets");

	#ifdef INET
	struct pr_usrreqs rip_usrreqs = {
	Index: head/sys/netinet/siftr.c
	===================================================================
	--- head/sys/netinet/siftr.c
	+++ head/sys/netinet/siftr.c
	@@ -300,16 +300,18 @@

	SYSCTL_DECL(_net_inet_siftr);

	-SYSCTL_NODE(_net_inet, OID_AUTO, siftr, CTLFLAG_RW, NULL,
	+SYSCTL_NODE(_net_inet, OID_AUTO, siftr, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	"siftr related settings");

	-SYSCTL_PROC(_net_inet_siftr, OID_AUTO, enabled, CTLTYPE_UINT\|CTLFLAG_RW,
	+SYSCTL_PROC(_net_inet_siftr, OID_AUTO, enabled,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&siftr_enabled, 0, &siftr_sysctl_enabled_handler, "IU",
	"switch siftr module operations on/off");

	-SYSCTL_PROC(_net_inet_siftr, OID_AUTO, logfile, CTLTYPE_STRING\|CTLFLAG_RW,
	- &siftr_logfile_shadow, sizeof(siftr_logfile_shadow), &siftr_sysctl_logfile_name_handler,
	- "A", "file to save siftr log messages to");
	+SYSCTL_PROC(_net_inet_siftr, OID_AUTO, logfile,
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &siftr_logfile_shadow,
	+ sizeof(siftr_logfile_shadow), &siftr_sysctl_logfile_name_handler, "A",
	+ "file to save siftr log messages to");

	SYSCTL_UINT(_net_inet_siftr, OID_AUTO, ppl, CTLFLAG_RW,
	&siftr_pkts_per_log, 1,
	Index: head/sys/netinet/tcp_fastopen.c
	===================================================================
	--- head/sys/netinet/tcp_fastopen.c
	+++ head/sys/netinet/tcp_fastopen.c
	@@ -255,7 +255,8 @@
	static void tcp_fastopen_ccache_entry_drop(struct tcp_fastopen_ccache_entry *,
	struct tcp_fastopen_ccache_bucket *);

	-SYSCTL_NODE(_net_inet_tcp, OID_AUTO, fastopen, CTLFLAG_RW, 0, "TCP Fast Open");
	+SYSCTL_NODE(_net_inet_tcp, OID_AUTO, fastopen, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "TCP Fast Open");

	VNET_DEFINE_STATIC(int, tcp_fastopen_acceptany) = 0;
	#define V_tcp_fastopen_acceptany VNET(tcp_fastopen_acceptany)
	@@ -267,14 +268,14 @@
	#define V_tcp_fastopen_autokey VNET(tcp_fastopen_autokey)
	static int sysctl_net_inet_tcp_fastopen_autokey(SYSCTL_HANDLER_ARGS);
	SYSCTL_PROC(_net_inet_tcp_fastopen, OID_AUTO, autokey,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW, NULL, 0,
	- &sysctl_net_inet_tcp_fastopen_autokey, "IU",
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ NULL, 0, &sysctl_net_inet_tcp_fastopen_autokey, "IU",
	"Number of seconds between auto-generation of a new key; zero disables");

	static int sysctl_net_inet_tcp_fastopen_ccache_bucket_limit(SYSCTL_HANDLER_ARGS);
	SYSCTL_PROC(_net_inet_tcp_fastopen, OID_AUTO, ccache_bucket_limit,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RWTUN, NULL, 0,
	- &sysctl_net_inet_tcp_fastopen_ccache_bucket_limit, "IU",
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT,
	+ NULL, 0, &sysctl_net_inet_tcp_fastopen_ccache_bucket_limit, "IU",
	"Max entries per bucket in client cookie cache");

	VNET_DEFINE_STATIC(unsigned int, tcp_fastopen_ccache_buckets) =
	@@ -287,8 +288,8 @@
	VNET_DEFINE(unsigned int, tcp_fastopen_client_enable) = 1;
	static int sysctl_net_inet_tcp_fastopen_client_enable(SYSCTL_HANDLER_ARGS);
	SYSCTL_PROC(_net_inet_tcp_fastopen, OID_AUTO, client_enable,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW, NULL, 0,
	- &sysctl_net_inet_tcp_fastopen_client_enable, "IU",
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ NULL, 0, &sysctl_net_inet_tcp_fastopen_client_enable, "IU",
	"Enable/disable TCP Fast Open client functionality");

	SYSCTL_INT(_net_inet_tcp_fastopen, OID_AUTO, keylen,
	@@ -326,33 +327,33 @@
	#define V_tcp_fastopen_psk_enable VNET(tcp_fastopen_psk_enable)
	static int sysctl_net_inet_tcp_fastopen_psk_enable(SYSCTL_HANDLER_ARGS);
	SYSCTL_PROC(_net_inet_tcp_fastopen, OID_AUTO, psk_enable,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW, NULL, 0,
	- &sysctl_net_inet_tcp_fastopen_psk_enable, "IU",
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ NULL, 0, &sysctl_net_inet_tcp_fastopen_psk_enable, "IU",
	"Enable/disable TCP Fast Open server pre-shared key mode");

	VNET_DEFINE(unsigned int, tcp_fastopen_server_enable) = 0;
	static int sysctl_net_inet_tcp_fastopen_server_enable(SYSCTL_HANDLER_ARGS);
	SYSCTL_PROC(_net_inet_tcp_fastopen, OID_AUTO, server_enable,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW, NULL, 0,
	- &sysctl_net_inet_tcp_fastopen_server_enable, "IU",
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ NULL, 0, &sysctl_net_inet_tcp_fastopen_server_enable, "IU",
	"Enable/disable TCP Fast Open server functionality");

	static int sysctl_net_inet_tcp_fastopen_setkey(SYSCTL_HANDLER_ARGS);
	SYSCTL_PROC(_net_inet_tcp_fastopen, OID_AUTO, setkey,
	- CTLFLAG_VNET \| CTLTYPE_OPAQUE \| CTLFLAG_WR, NULL, 0,
	- &sysctl_net_inet_tcp_fastopen_setkey, "",
	+ CTLFLAG_VNET \| CTLTYPE_OPAQUE \| CTLFLAG_WR \| CTLFLAG_MPSAFE,
	+ NULL, 0, &sysctl_net_inet_tcp_fastopen_setkey, "",
	"Install a new key");

	static int sysctl_net_inet_tcp_fastopen_setpsk(SYSCTL_HANDLER_ARGS);
	SYSCTL_PROC(_net_inet_tcp_fastopen, OID_AUTO, setpsk,
	- CTLFLAG_VNET \| CTLTYPE_OPAQUE \| CTLFLAG_WR, NULL, 0,
	- &sysctl_net_inet_tcp_fastopen_setpsk, "",
	+ CTLFLAG_VNET \| CTLTYPE_OPAQUE \| CTLFLAG_WR \| CTLFLAG_MPSAFE,
	+ NULL, 0, &sysctl_net_inet_tcp_fastopen_setpsk, "",
	"Install a new pre-shared key");

	static int sysctl_net_inet_tcp_fastopen_ccache_list(SYSCTL_HANDLER_ARGS);
	SYSCTL_PROC(_net_inet_tcp_fastopen, OID_AUTO, ccache_list,
	- CTLFLAG_VNET \| CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_SKIP, NULL, 0,
	- sysctl_net_inet_tcp_fastopen_ccache_list, "A",
	+ CTLFLAG_VNET \| CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_SKIP \| CTLFLAG_MPSAFE,
	+ NULL, 0, sysctl_net_inet_tcp_fastopen_ccache_list, "A",
	"List of all client cookie cache entries");

	VNET_DEFINE_STATIC(struct rmlock, tcp_fastopen_keylock);
	Index: head/sys/netinet/tcp_hostcache.c
	===================================================================
	--- head/sys/netinet/tcp_hostcache.c
	+++ head/sys/netinet/tcp_hostcache.c
	@@ -125,7 +125,8 @@
	static void tcp_hc_purge_internal(int);
	static void tcp_hc_purge(void *);

	-static SYSCTL_NODE(_net_inet_tcp, OID_AUTO, hostcache, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_inet_tcp, OID_AUTO, hostcache,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TCP Host cache");

	VNET_DEFINE(int, tcp_use_hostcache) = 1;
	@@ -163,12 +164,14 @@
	"Expire all entires on next purge run");

	SYSCTL_PROC(_net_inet_tcp_hostcache, OID_AUTO, list,
	- CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_SKIP, 0, 0,
	- sysctl_tcp_hc_list, "A", "List of all hostcache entries");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_SKIP \| CTLFLAG_MPSAFE,
	+ 0, 0, sysctl_tcp_hc_list, "A",
	+ "List of all hostcache entries");

	SYSCTL_PROC(_net_inet_tcp_hostcache, OID_AUTO, purgenow,
	- CTLTYPE_INT \| CTLFLAG_RW, NULL, 0,
	- sysctl_tcp_hc_purgenow, "I", "Immediately purge all entries");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ NULL, 0, sysctl_tcp_hc_purgenow, "I",
	+ "Immediately purge all entries");

	static MALLOC_DEFINE(M_HOSTCACHE, "hostcache", "TCP hostcache");

	Index: head/sys/netinet/tcp_hpts.c
	===================================================================
	--- head/sys/netinet/tcp_hpts.c
	+++ head/sys/netinet/tcp_hpts.c
	@@ -203,7 +203,8 @@
	int32_t tcp_min_hptsi_time = DEFAULT_MIN_SLEEP;
	static int32_t tcp_hpts_callout_skip_swi = 0;

	-SYSCTL_NODE(_net_inet_tcp, OID_AUTO, hpts, CTLFLAG_RW, 0, "TCP Hpts controls");
	+SYSCTL_NODE(_net_inet_tcp, OID_AUTO, hpts, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "TCP Hpts controls");

	#define timersub(tvp, uvp, vvp) \
	do { \
	@@ -293,7 +294,7 @@
	}

	SYSCTL_PROC(_net_inet_tcp_hpts, OID_AUTO, maxsleep,
	- CTLTYPE_UINT \| CTLFLAG_RW,
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&hpts_sleep_max, 0,
	&sysctl_net_inet_tcp_hpts_max_sleep, "IU",
	"Maximum time hpts will sleep");
	@@ -1903,7 +1904,7 @@
	SYSCTL_STATIC_CHILDREN(_net_inet_tcp_hpts),
	OID_AUTO,
	unit,
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"");
	SYSCTL_ADD_INT(&hpts->hpts_ctx,
	SYSCTL_CHILDREN(hpts->hpts_root),
	Index: head/sys/netinet/tcp_input.c
	===================================================================
	--- head/sys/netinet/tcp_input.c
	+++ head/sys/netinet/tcp_input.c
	@@ -188,7 +188,9 @@
	&VNET_NAME(tcp_abc_l_var), 2,
	"Cap the max cwnd increment during slow-start to this number of segments");

	-static SYSCTL_NODE(_net_inet_tcp, OID_AUTO, ecn, CTLFLAG_RW, 0, "TCP ECN");
	+static SYSCTL_NODE(_net_inet_tcp, OID_AUTO, ecn,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "TCP ECN");

	VNET_DEFINE(int, tcp_do_ecn) = 2;
	SYSCTL_INT(_net_inet_tcp_ecn, OID_AUTO, enable, CTLFLAG_VNET \| CTLFLAG_RW,
	Index: head/sys/netinet/tcp_log_buf.c
	===================================================================
	--- head/sys/netinet/tcp_log_buf.c
	+++ head/sys/netinet/tcp_log_buf.c
	@@ -82,7 +82,8 @@

	RB_PROTOTYPE_STATIC(tcp_log_id_tree, tcp_log_id_bucket, tlb_rb, tcp_log_id_cmp)

	-SYSCTL_NODE(_net_inet_tcp, OID_AUTO, bb, CTLFLAG_RW, 0, "TCP Black Box controls");
	+SYSCTL_NODE(_net_inet_tcp, OID_AUTO, bb, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "TCP Black Box controls");

	SYSCTL_BOOL(_net_inet_tcp_bb, OID_AUTO, log_verbose, CTLFLAG_RW, &tcp_log_verbose,
	0, "Force verbose logging for TCP traces");
	Index: head/sys/netinet/tcp_ratelimit.c
	===================================================================
	--- head/sys/netinet/tcp_ratelimit.c
	+++ head/sys/netinet/tcp_ratelimit.c
	@@ -285,7 +285,7 @@
	uint32_t rs_number_alive;
	uint32_t rs_number_dead;

	-SYSCTL_NODE(_net_inet_tcp, OID_AUTO, rl, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_net_inet_tcp, OID_AUTO, rl, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TCP Ratelimit stats");
	SYSCTL_UINT(_net_inet_tcp_rl, OID_AUTO, alive, CTLFLAG_RW,
	&rs_number_alive, 0,
	@@ -359,7 +359,7 @@
	SYSCTL_CHILDREN(rl_sysctl_root),
	OID_AUTO,
	"rate",
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Ratelist");
	for( i = 0; i < rs->rs_rate_cnt; i++) {
	sprintf(rate_num, "%d", i);
	@@ -367,7 +367,7 @@
	SYSCTL_CHILDREN(rl_rates),
	OID_AUTO,
	rate_num,
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Individual Rate");
	SYSCTL_ADD_U32(&rs->sysctl_ctx,
	SYSCTL_CHILDREN(rl_rate_num),
	@@ -565,7 +565,7 @@
	SYSCTL_STATIC_CHILDREN(_net_inet_tcp_rl),
	OID_AUTO,
	rs->rs_ifp->if_xname,
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"");
	rl_add_syctl_entries(rl_sysctl_root, rs);
	mtx_lock(&rs_mtx);
	@@ -583,7 +583,7 @@
	SYSCTL_STATIC_CHILDREN(_net_inet_tcp_rl),
	OID_AUTO,
	rs->rs_ifp->if_xname,
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"");
	rl_add_syctl_entries(rl_sysctl_root, rs);
	mtx_lock(&rs_mtx);
	@@ -744,7 +744,7 @@
	SYSCTL_STATIC_CHILDREN(_net_inet_tcp_rl),
	OID_AUTO,
	rs->rs_ifp->if_xname,
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"");
	rl_add_syctl_entries(rl_sysctl_root, rs);
	mtx_lock(&rs_mtx);
	Index: head/sys/netinet/tcp_reass.c
	===================================================================
	--- head/sys/netinet/tcp_reass.c
	+++ head/sys/netinet/tcp_reass.c
	@@ -98,10 +98,12 @@
	#define TCP_R_LOG_DUMP 10
	#define TCP_R_LOG_TRIM 11

	-static SYSCTL_NODE(_net_inet_tcp, OID_AUTO, reass, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_inet_tcp, OID_AUTO, reass,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TCP Segment Reassembly Queue");

	-static SYSCTL_NODE(_net_inet_tcp_reass, OID_AUTO, stats, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_inet_tcp_reass, OID_AUTO, stats,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TCP Segment Reassembly stats");


	Index: head/sys/netinet/tcp_sack.c
	===================================================================
	--- head/sys/netinet/tcp_sack.c
	+++ head/sys/netinet/tcp_sack.c
	@@ -128,7 +128,8 @@
	VNET_DECLARE(struct uma_zone *, sack_hole_zone);
	#define V_sack_hole_zone VNET(sack_hole_zone)

	-SYSCTL_NODE(_net_inet_tcp, OID_AUTO, sack, CTLFLAG_RW, 0, "TCP SACK");
	+SYSCTL_NODE(_net_inet_tcp, OID_AUTO, sack, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "TCP SACK");
	VNET_DEFINE(int, tcp_do_sack) = 1;
	#define V_tcp_do_sack VNET(tcp_do_sack)
	SYSCTL_INT(_net_inet_tcp_sack, OID_AUTO, enable, CTLFLAG_VNET \| CTLFLAG_RW,
	Index: head/sys/netinet/tcp_stacks/bbr.c
	===================================================================
	--- head/sys/netinet/tcp_stacks/bbr.c
	+++ head/sys/netinet/tcp_stacks/bbr.c
	@@ -1190,7 +1190,7 @@
	SYSCTL_CHILDREN(bbr_sysctl_root),
	OID_AUTO,
	"probertt",
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"");
	SYSCTL_ADD_S32(&bbr_sysctl_ctx,
	SYSCTL_CHILDREN(bbr_probertt),
	@@ -1258,7 +1258,7 @@
	SYSCTL_CHILDREN(bbr_sysctl_root),
	OID_AUTO,
	"pacing",
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"");
	SYSCTL_ADD_U32(&bbr_sysctl_ctx,
	SYSCTL_CHILDREN(bbr_hptsi),
	@@ -1360,7 +1360,7 @@
	SYSCTL_CHILDREN(bbr_sysctl_root),
	OID_AUTO,
	"measure",
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Measurement controls");
	SYSCTL_ADD_U32(&bbr_sysctl_ctx,
	SYSCTL_CHILDREN(bbr_measure),
	@@ -1427,7 +1427,7 @@
	SYSCTL_CHILDREN(bbr_sysctl_root),
	OID_AUTO,
	"states",
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"State controls");
	SYSCTL_ADD_S32(&bbr_sysctl_ctx,
	SYSCTL_CHILDREN(bbr_states),
	@@ -1519,7 +1519,7 @@
	SYSCTL_CHILDREN(bbr_sysctl_root),
	OID_AUTO,
	"startup",
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Startup controls");
	SYSCTL_ADD_S32(&bbr_sysctl_ctx,
	SYSCTL_CHILDREN(bbr_startup),
	@@ -1556,7 +1556,7 @@
	SYSCTL_CHILDREN(bbr_sysctl_root),
	OID_AUTO,
	"cwnd",
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Cwnd controls");
	SYSCTL_ADD_S32(&bbr_sysctl_ctx,
	SYSCTL_CHILDREN(bbr_cwnd),
	@@ -1629,7 +1629,7 @@
	SYSCTL_CHILDREN(bbr_sysctl_root),
	OID_AUTO,
	"timeout",
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Time out controls");
	SYSCTL_ADD_S32(&bbr_sysctl_ctx,
	SYSCTL_CHILDREN(bbr_timeout),
	@@ -1701,7 +1701,7 @@
	SYSCTL_CHILDREN(bbr_sysctl_root),
	OID_AUTO,
	"policer",
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Policer controls");
	SYSCTL_ADD_S32(&bbr_sysctl_ctx,
	SYSCTL_CHILDREN(bbr_policer),
	@@ -15135,7 +15135,7 @@
	#else
	__XSTRING(STACKNAME),
	#endif
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"");
	if (bbr_sysctl_root == NULL) {
	printf("Failed to add sysctl node\n");
	Index: head/sys/netinet/tcp_stacks/rack.c
	===================================================================
	--- head/sys/netinet/tcp_stacks/rack.c
	+++ head/sys/netinet/tcp_stacks/rack.c
	@@ -668,7 +668,7 @@
	SYSCTL_CHILDREN(rack_sysctl_root),
	OID_AUTO,
	"stats",
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Rack Counters");
	rack_badfr = counter_u64_alloc(M_WAITOK);
	SYSCTL_ADD_COUNTER_U64(&rack_sysctl_ctx,
	@@ -874,7 +874,7 @@
	SYSCTL_CHILDREN(rack_sysctl_root),
	OID_AUTO,
	"sack_attack",
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Rack Sack Attack Counters and Controls");
	SYSCTL_ADD_U32(&rack_sysctl_ctx,
	SYSCTL_CHILDREN(rack_attack),
	@@ -10512,7 +10512,7 @@
	#else
	__XSTRING(STACKNAME),
	#endif
	- CTLFLAG_RW, 0,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"");
	if (rack_sysctl_root == NULL) {
	printf("Failed to add sysctl node\n");
	Index: head/sys/netinet/tcp_stats.c
	===================================================================
	--- head/sys/netinet/tcp_stats.c
	+++ head/sys/netinet/tcp_stats.c
	@@ -79,7 +79,7 @@
	"Enable per-connection TCP stats gathering; 1 enables for all connections, "
	"2 enables random sampling across log id connection groups");
	SYSCTL_PROC(_net_inet_tcp, OID_AUTO, perconn_stats_sample_rates,
	- CTLTYPE_STRING \| CTLFLAG_RW, tcp_stats_tpl_sr_cb,
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, tcp_stats_tpl_sr_cb,
	sizeof(struct rm_priotracker), stats_tpl_sample_rates, "A",
	"TCP stats per template random sampling rates, in CSV tpl_spec=percent "
	"key-value pairs (see stats(9) for template spec details)");
	Index: head/sys/netinet/tcp_subr.c
	===================================================================
	--- head/sys/netinet/tcp_subr.c
	+++ head/sys/netinet/tcp_subr.c
	@@ -140,7 +140,8 @@

	#ifdef NETFLIX_EXP_DETECTION
	/* Sack attack detection thresholds and such */
	-SYSCTL_NODE(_net_inet_tcp, OID_AUTO, sack_attack, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_net_inet_tcp, OID_AUTO, sack_attack,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Sack Attack detection thresholds");
	int32_t tcp_force_detection = 0;
	SYSCTL_INT(_net_inet_tcp_sack_attack, OID_AUTO, force_detection,
	@@ -209,8 +210,8 @@
	}

	SYSCTL_PROC(_net_inet_tcp, TCPCTL_MSSDFLT, mssdflt,
	- CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW, &VNET_NAME(tcp_mssdflt), 0,
	- &sysctl_net_inet_tcp_mss_check, "I",
	+ CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(tcp_mssdflt), 0, &sysctl_net_inet_tcp_mss_check, "I",
	"Default TCP Maximum Segment Size");

	#ifdef INET6
	@@ -231,8 +232,8 @@
	}

	SYSCTL_PROC(_net_inet_tcp, TCPCTL_V6MSSDFLT, v6mssdflt,
	- CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW, &VNET_NAME(tcp_v6mssdflt), 0,
	- &sysctl_net_inet_tcp_mss_v6_check, "I",
	+ CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &VNET_NAME(tcp_v6mssdflt), 0, &sysctl_net_inet_tcp_mss_v6_check, "I",
	"Default TCP Maximum Segment Size for IPv6");
	#endif /* INET6 */

	@@ -311,7 +312,7 @@
	return (error);
	}
	SYSCTL_PROC(_net_inet_tcp, OID_AUTO, map_limit,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW,
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&VNET_NAME(tcp_map_entries_limit), 0,
	&sysctl_net_inet_tcp_map_limit_check, "IU",
	"Total sendmap entries limit");
	@@ -532,9 +533,9 @@
	}

	SYSCTL_PROC(_net_inet_tcp, OID_AUTO, functions_default,
	- CTLTYPE_STRING \| CTLFLAG_RW,
	- NULL, 0, sysctl_net_inet_default_tcp_functions, "A",
	- "Set/get the default TCP functions");
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ NULL, 0, sysctl_net_inet_default_tcp_functions, "A",
	+ "Set/get the default TCP functions");

	static int
	sysctl_net_inet_list_available(SYSCTL_HANDLER_ARGS)
	@@ -588,9 +589,9 @@
	}

	SYSCTL_PROC(_net_inet_tcp, OID_AUTO, functions_available,
	- CTLTYPE_STRING\|CTLFLAG_RD,
	- NULL, 0, sysctl_net_inet_list_available, "A",
	- "list available TCP Function sets");
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ NULL, 0, sysctl_net_inet_list_available, "A",
	+ "list available TCP Function sets");

	/*
	* Exports one (struct tcp_function_info) for each alias/name.
	@@ -2315,8 +2316,9 @@
	}

	SYSCTL_PROC(_net_inet_tcp, TCPCTL_PCBLIST, pcblist,
	- CTLTYPE_OPAQUE \| CTLFLAG_RD, NULL, 0,
	- tcp_pcblist, "S,xtcpcb", "List of active TCP connections");
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ NULL, 0, tcp_pcblist, "S,xtcpcb",
	+ "List of active TCP connections");

	#ifdef INET
	static int
	@@ -2354,8 +2356,9 @@
	}

	SYSCTL_PROC(_net_inet_tcp, OID_AUTO, getcred,
	- CTLTYPE_OPAQUE\|CTLFLAG_RW\|CTLFLAG_PRISON, 0, 0,
	- tcp_getcred, "S,xucred", "Get the xucred of a TCP connection");
	+ CTLTYPE_OPAQUE \| CTLFLAG_RW \| CTLFLAG_PRISON \| CTLFLAG_NEEDGIANT,
	+ 0, 0, tcp_getcred, "S,xucred",
	+ "Get the xucred of a TCP connection");
	#endif /* INET */

	#ifdef INET6
	@@ -2421,8 +2424,9 @@
	}

	SYSCTL_PROC(_net_inet6_tcp6, OID_AUTO, getcred,
	- CTLTYPE_OPAQUE\|CTLFLAG_RW\|CTLFLAG_PRISON, 0, 0,
	- tcp6_getcred, "S,xucred", "Get the xucred of a TCP6 connection");
	+ CTLTYPE_OPAQUE \| CTLFLAG_RW \| CTLFLAG_PRISON \| CTLFLAG_NEEDGIANT,
	+ 0, 0, tcp6_getcred, "S,xucred",
	+ "Get the xucred of a TCP6 connection");
	#endif /* INET6 */


	@@ -3153,8 +3157,9 @@
	}

	SYSCTL_PROC(_net_inet_tcp, TCPCTL_DROP, drop,
	- CTLFLAG_VNET \| CTLTYPE_STRUCT \| CTLFLAG_WR \| CTLFLAG_SKIP, NULL,
	- 0, sysctl_drop, "", "Drop TCP connection");
	+ CTLFLAG_VNET \| CTLTYPE_STRUCT \| CTLFLAG_WR \| CTLFLAG_SKIP \|
	+ CTLFLAG_NEEDGIANT, NULL, 0, sysctl_drop, "",
	+ "Drop TCP connection");

	#ifdef KERN_TLS
	static int
	@@ -3263,11 +3268,13 @@
	}

	SYSCTL_PROC(_net_inet_tcp, OID_AUTO, switch_to_sw_tls,
	- CTLFLAG_VNET \| CTLTYPE_STRUCT \| CTLFLAG_WR \| CTLFLAG_SKIP, NULL,
	- 0, sysctl_switch_tls, "", "Switch TCP connection to SW TLS");
	+ CTLFLAG_VNET \| CTLTYPE_STRUCT \| CTLFLAG_WR \| CTLFLAG_SKIP \|
	+ CTLFLAG_NEEDGIANT, NULL, 0, sysctl_switch_tls, "",
	+ "Switch TCP connection to SW TLS");
	SYSCTL_PROC(_net_inet_tcp, OID_AUTO, switch_to_ifnet_tls,
	- CTLFLAG_VNET \| CTLTYPE_STRUCT \| CTLFLAG_WR \| CTLFLAG_SKIP, NULL,
	- 1, sysctl_switch_tls, "", "Switch TCP connection to ifnet TLS");
	+ CTLFLAG_VNET \| CTLTYPE_STRUCT \| CTLFLAG_WR \| CTLFLAG_SKIP \|
	+ CTLFLAG_NEEDGIANT, NULL, 1, sysctl_switch_tls, "",
	+ "Switch TCP connection to ifnet TLS");
	#endif

	/*
	Index: head/sys/netinet/tcp_syncache.c
	===================================================================
	--- head/sys/netinet/tcp_syncache.c
	+++ head/sys/netinet/tcp_syncache.c
	@@ -172,7 +172,8 @@
	VNET_DEFINE_STATIC(struct tcp_syncache, tcp_syncache);
	#define V_tcp_syncache VNET(tcp_syncache)

	-static SYSCTL_NODE(_net_inet_tcp, OID_AUTO, syncache, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_inet_tcp, OID_AUTO, syncache,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TCP SYN cache");

	SYSCTL_UINT(_net_inet_tcp_syncache, OID_AUTO, bucketlimit, CTLFLAG_VNET \| CTLFLAG_RDTUN,
	@@ -208,7 +209,7 @@
	}

	SYSCTL_PROC(_net_inet_tcp_syncache, OID_AUTO, rexmtlimit,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW,
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&VNET_NAME(tcp_syncache.rexmt_limit), 0,
	sysctl_net_inet_tcp_syncache_rexmtlimit_check, "UI",
	"Limit on SYN/ACK retransmissions");
	Index: head/sys/netinet/tcp_timer.c
	===================================================================
	--- head/sys/netinet/tcp_timer.c
	+++ head/sys/netinet/tcp_timer.c
	@@ -82,46 +82,62 @@
	#endif

	int tcp_persmin;
	-SYSCTL_PROC(_net_inet_tcp, OID_AUTO, persmin, CTLTYPE_INT\|CTLFLAG_RW,
	- &tcp_persmin, 0, sysctl_msec_to_ticks, "I", "minimum persistence interval");
	+SYSCTL_PROC(_net_inet_tcp, OID_AUTO, persmin,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &tcp_persmin, 0, sysctl_msec_to_ticks, "I",
	+ "minimum persistence interval");

	int tcp_persmax;
	-SYSCTL_PROC(_net_inet_tcp, OID_AUTO, persmax, CTLTYPE_INT\|CTLFLAG_RW,
	- &tcp_persmax, 0, sysctl_msec_to_ticks, "I", "maximum persistence interval");
	+SYSCTL_PROC(_net_inet_tcp, OID_AUTO, persmax,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &tcp_persmax, 0, sysctl_msec_to_ticks, "I",
	+ "maximum persistence interval");

	int tcp_keepinit;
	-SYSCTL_PROC(_net_inet_tcp, TCPCTL_KEEPINIT, keepinit, CTLTYPE_INT\|CTLFLAG_RW,
	- &tcp_keepinit, 0, sysctl_msec_to_ticks, "I", "time to establish connection");
	+SYSCTL_PROC(_net_inet_tcp, TCPCTL_KEEPINIT, keepinit,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &tcp_keepinit, 0, sysctl_msec_to_ticks, "I",
	+ "time to establish connection");

	int tcp_keepidle;
	-SYSCTL_PROC(_net_inet_tcp, TCPCTL_KEEPIDLE, keepidle, CTLTYPE_INT\|CTLFLAG_RW,
	- &tcp_keepidle, 0, sysctl_msec_to_ticks, "I", "time before keepalive probes begin");
	+SYSCTL_PROC(_net_inet_tcp, TCPCTL_KEEPIDLE, keepidle,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &tcp_keepidle, 0, sysctl_msec_to_ticks, "I",
	+ "time before keepalive probes begin");

	int tcp_keepintvl;
	-SYSCTL_PROC(_net_inet_tcp, TCPCTL_KEEPINTVL, keepintvl, CTLTYPE_INT\|CTLFLAG_RW,
	- &tcp_keepintvl, 0, sysctl_msec_to_ticks, "I", "time between keepalive probes");
	+SYSCTL_PROC(_net_inet_tcp, TCPCTL_KEEPINTVL, keepintvl,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &tcp_keepintvl, 0, sysctl_msec_to_ticks, "I",
	+ "time between keepalive probes");

	int tcp_delacktime;
	-SYSCTL_PROC(_net_inet_tcp, TCPCTL_DELACKTIME, delacktime, CTLTYPE_INT\|CTLFLAG_RW,
	+SYSCTL_PROC(_net_inet_tcp, TCPCTL_DELACKTIME, delacktime,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&tcp_delacktime, 0, sysctl_msec_to_ticks, "I",
	"Time before a delayed ACK is sent");

	int tcp_msl;
	-SYSCTL_PROC(_net_inet_tcp, OID_AUTO, msl, CTLTYPE_INT\|CTLFLAG_RW,
	- &tcp_msl, 0, sysctl_msec_to_ticks, "I", "Maximum segment lifetime");
	+SYSCTL_PROC(_net_inet_tcp, OID_AUTO, msl,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &tcp_msl, 0, sysctl_msec_to_ticks, "I",
	+ "Maximum segment lifetime");

	int tcp_rexmit_initial;
	-SYSCTL_PROC(_net_inet_tcp, OID_AUTO, rexmit_initial, CTLTYPE_INT\|CTLFLAG_RW,
	+SYSCTL_PROC(_net_inet_tcp, OID_AUTO, rexmit_initial,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&tcp_rexmit_initial, 0, sysctl_msec_to_ticks, "I",
	"Initial Retransmission Timeout");

	int tcp_rexmit_min;
	-SYSCTL_PROC(_net_inet_tcp, OID_AUTO, rexmit_min, CTLTYPE_INT\|CTLFLAG_RW,
	+SYSCTL_PROC(_net_inet_tcp, OID_AUTO, rexmit_min,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&tcp_rexmit_min, 0, sysctl_msec_to_ticks, "I",
	"Minimum Retransmission Timeout");

	int tcp_rexmit_slop;
	-SYSCTL_PROC(_net_inet_tcp, OID_AUTO, rexmit_slop, CTLTYPE_INT\|CTLFLAG_RW,
	+SYSCTL_PROC(_net_inet_tcp, OID_AUTO, rexmit_slop,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&tcp_rexmit_slop, 0, sysctl_msec_to_ticks, "I",
	"Retransmission Timer Slop");

	@@ -136,8 +152,10 @@
	"Recycle closed FIN_WAIT_2 connections faster");

	int tcp_finwait2_timeout;
	-SYSCTL_PROC(_net_inet_tcp, OID_AUTO, finwait2_timeout, CTLTYPE_INT\|CTLFLAG_RW,
	- &tcp_finwait2_timeout, 0, sysctl_msec_to_ticks, "I", "FIN-WAIT2 timeout");
	+SYSCTL_PROC(_net_inet_tcp, OID_AUTO, finwait2_timeout,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ &tcp_finwait2_timeout, 0, sysctl_msec_to_ticks, "I",
	+ "FIN-WAIT2 timeout");

	int tcp_keepcnt = TCPTV_KEEPCNT;
	SYSCTL_INT(_net_inet_tcp, OID_AUTO, keepcnt, CTLFLAG_RW, &tcp_keepcnt, 0,
	Index: head/sys/netinet/tcp_timewait.c
	===================================================================
	--- head/sys/netinet/tcp_timewait.c
	+++ head/sys/netinet/tcp_timewait.c
	@@ -169,7 +169,8 @@
	return (error);
	}

	-SYSCTL_PROC(_net_inet_tcp, OID_AUTO, maxtcptw, CTLTYPE_INT\|CTLFLAG_RW,
	+SYSCTL_PROC(_net_inet_tcp, OID_AUTO, maxtcptw,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	&maxtcptw, 0, sysctl_maxtcptw, "IU",
	"Maximum number of compressed TCP TIME_WAIT entries");

	Index: head/sys/netinet/udp_usrreq.c
	===================================================================
	--- head/sys/netinet/udp_usrreq.c
	+++ head/sys/netinet/udp_usrreq.c
	@@ -916,8 +916,9 @@
	}

	SYSCTL_PROC(_net_inet_udp, UDPCTL_PCBLIST, pcblist,
	- CTLTYPE_OPAQUE \| CTLFLAG_RD, NULL, 0,
	- udp_pcblist, "S,xinpcb", "List of active UDP sockets");
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, 0,
	+ udp_pcblist, "S,xinpcb",
	+ "List of active UDP sockets");

	#ifdef INET
	static int
	@@ -957,8 +958,9 @@
	}

	SYSCTL_PROC(_net_inet_udp, OID_AUTO, getcred,
	- CTLTYPE_OPAQUE\|CTLFLAG_RW\|CTLFLAG_PRISON, 0, 0,
	- udp_getcred, "S,xucred", "Get the xucred of a UDP connection");
	+ CTLTYPE_OPAQUE \| CTLFLAG_RW \| CTLFLAG_PRISON \| CTLFLAG_MPSAFE,
	+ 0, 0, udp_getcred, "S,xucred",
	+ "Get the xucred of a UDP connection");
	#endif /* INET */

	int
	Index: head/sys/netinet6/frag6.c
	===================================================================
	--- head/sys/netinet6/frag6.c
	+++ head/sys/netinet6/frag6.c
	@@ -197,8 +197,8 @@
	return (0);
	}
	SYSCTL_PROC(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, maxfragpackets,
	- CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW, NULL, 0,
	- sysctl_ip6_maxfragpackets, "I",
	+ CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ NULL, 0, sysctl_ip6_maxfragpackets, "I",
	"Default maximum number of outstanding fragmented IPv6 packets. "
	"A value of 0 means no fragmented packets will be accepted, while a "
	"a value of -1 means no limit");
	Index: head/sys/netinet6/in6_mcast.c
	===================================================================
	--- head/sys/netinet6/in6_mcast.c
	+++ head/sys/netinet6/in6_mcast.c
	@@ -168,7 +168,8 @@

	SYSCTL_DECL(_net_inet6_ip6); /* XXX Not in any common header. */

	-static SYSCTL_NODE(_net_inet6_ip6, OID_AUTO, mcast, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_net_inet6_ip6, OID_AUTO, mcast,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"IPv6 multicast");

	static u_long in6_mcast_maxgrpsrc = IPV6_MAX_GROUP_SRC_FILTER;
	Index: head/sys/netinet6/in6_proto.c
	===================================================================
	--- head/sys/netinet6/in6_proto.c
	+++ head/sys/netinet6/in6_proto.c
	@@ -424,19 +424,25 @@
	/*
	* sysctl related items.
	*/
	-SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0,
	- "Internet6 Family");
	+SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Internet6 Family");

	/* net.inet6 */
	-SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6");
	-SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6");
	-SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6");
	-SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6");
	+SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "IP6");
	+SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "ICMP6");
	+SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "UDP6");
	+SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "TCP6");
	#ifdef SCTP
	-SYSCTL_NODE(_net_inet6, IPPROTO_SCTP, sctp6, CTLFLAG_RW, 0, "SCTP6");
	+SYSCTL_NODE(_net_inet6, IPPROTO_SCTP, sctp6, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "SCTP6");
	#endif
	#if defined(IPSEC) \|\| defined(IPSEC_SUPPORT)
	-SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6");
	+SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "IPSEC6");
	#endif /* IPSEC */

	/* net.inet6.ip6 */
	@@ -528,11 +534,11 @@
	CTLFLAG_VNET \| CTLFLAG_RW, &VNET_NAME(ip6_use_tempaddr), 0,
	"Create RFC3041 temporary addresses for autoconfigured addresses");
	SYSCTL_PROC(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime,
	- CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW,
	+ CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	NULL, 0, sysctl_ip6_temppltime, "I",
	"Maximum preferred lifetime for temporary addresses");
	SYSCTL_PROC(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime,
	- CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW,
	+ CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	NULL, 0, sysctl_ip6_tempvltime, "I",
	"Maximum valid lifetime for temporary addresses");
	SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, v6only,
	Index: head/sys/netinet6/in6_src.c
	===================================================================
	--- head/sys/netinet6/in6_src.c
	+++ head/sys/netinet6/in6_src.c
	@@ -1040,7 +1040,8 @@
	static int in6_src_sysctl(SYSCTL_HANDLER_ARGS);
	SYSCTL_DECL(_net_inet6_ip6);
	static SYSCTL_NODE(_net_inet6_ip6, IPV6CTL_ADDRCTLPOLICY, addrctlpolicy,
	- CTLFLAG_RD, in6_src_sysctl, "");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, in6_src_sysctl,
	+ "");

	static int
	in6_src_sysctl(SYSCTL_HANDLER_ARGS)
	Index: head/sys/netinet6/ip6_input.c
	===================================================================
	--- head/sys/netinet6/ip6_input.c
	+++ head/sys/netinet6/ip6_input.c
	@@ -159,7 +159,8 @@
	}
	SYSCTL_DECL(_net_inet6_ip6);
	SYSCTL_PROC(_net_inet6_ip6, IPV6CTL_INTRQMAXLEN, intr_queue_maxlen,
	- CTLTYPE_INT\|CTLFLAG_RW, 0, 0, sysctl_netinet6_intr_queue_maxlen, "I",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ 0, 0, sysctl_netinet6_intr_queue_maxlen, "I",
	"Maximum size of the IPv6 input queue");

	#ifdef RSS
	@@ -186,8 +187,9 @@
	return (netisr_setqlimit(&ip6_direct_nh, qlimit));
	}
	SYSCTL_PROC(_net_inet6_ip6, IPV6CTL_INTRDQMAXLEN, intr_direct_queue_maxlen,
	- CTLTYPE_INT\|CTLFLAG_RW, 0, 0, sysctl_netinet6_intr_direct_queue_maxlen,
	- "I", "Maximum size of the IPv6 direct input queue");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ 0, 0, sysctl_netinet6_intr_direct_queue_maxlen, "I",
	+ "Maximum size of the IPv6 direct input queue");

	#endif

	Index: head/sys/netinet6/ip6_mroute.c
	===================================================================
	--- head/sys/netinet6/ip6_mroute.c
	+++ head/sys/netinet6/ip6_mroute.c
	@@ -155,7 +155,9 @@

	SYSCTL_DECL(_net_inet6);
	SYSCTL_DECL(_net_inet6_ip6);
	-static SYSCTL_NODE(_net_inet6, IPPROTO_PIM, pim, CTLFLAG_RW, 0, "PIM");
	+static SYSCTL_NODE(_net_inet6, IPPROTO_PIM, pim,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "PIM");

	static struct mrt6stat mrt6stat;
	SYSCTL_STRUCT(_net_inet6_ip6, OID_AUTO, mrt6stat, CTLFLAG_RW,
	@@ -222,7 +224,8 @@
	free(out, M_TEMP);
	return (error);
	}
	-SYSCTL_PROC(_net_inet6_ip6, OID_AUTO, mif6table, CTLTYPE_OPAQUE \| CTLFLAG_RD,
	+SYSCTL_PROC(_net_inet6_ip6, OID_AUTO, mif6table,
	+ CTLTYPE_OPAQUE \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	NULL, 0, sysctl_mif6table, "S,mif6_sctl[MAXMIFS]",
	"IPv6 Multicast Interfaces (struct mif6_sctl[MAXMIFS], "
	"netinet6/ip6_mroute.h)");
	Index: head/sys/netinet6/mld6.c
	===================================================================
	--- head/sys/netinet6/mld6.c
	+++ head/sys/netinet6/mld6.c
	@@ -222,7 +222,7 @@

	SYSCTL_DECL(_net_inet6); /* Note: Not in any common header. */

	-SYSCTL_NODE(_net_inet6, OID_AUTO, mld, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_net_inet6, OID_AUTO, mld, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"IPv6 Multicast Listener Discovery");

	/*
	Index: head/sys/netinet6/udp6_usrreq.c
	===================================================================
	--- head/sys/netinet6/udp6_usrreq.c
	+++ head/sys/netinet6/udp6_usrreq.c
	@@ -682,8 +682,10 @@
	return (error);
	}

	-SYSCTL_PROC(_net_inet6_udp6, OID_AUTO, getcred, CTLTYPE_OPAQUE\|CTLFLAG_RW, 0,
	- 0, udp6_getcred, "S,xucred", "Get the xucred of a UDP6 connection");
	+SYSCTL_PROC(_net_inet6_udp6, OID_AUTO, getcred,
	+ CTLTYPE_OPAQUE \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ 0, 0, udp6_getcred, "S,xucred",
	+ "Get the xucred of a UDP6 connection");

	static int
	udp6_output(struct socket so, int flags_arg, struct mbuf m,
	Index: head/sys/netipsec/ipsec.c
	===================================================================
	--- head/sys/netipsec/ipsec.c
	+++ head/sys/netipsec/ipsec.c
	@@ -175,8 +175,9 @@

	/* net.inet.ipsec */
	SYSCTL_PROC(_net_inet_ipsec, IPSECCTL_DEF_POLICY, def_policy,
	- CTLTYPE_INT \| CTLFLAG_VNET \| CTLFLAG_RW, 0, 0, sysctl_def_policy, "I",
	- "IPsec default policy.");
	+ CTLTYPE_INT \| CTLFLAG_VNET \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_def_policy, "I",
	+ "IPsec default policy.");
	SYSCTL_INT(_net_inet_ipsec, IPSECCTL_DEF_ESP_TRANSLEV, esp_trans_deflev,
	CTLFLAG_VNET \| CTLFLAG_RW, &VNET_NAME(ip4_esp_trans_deflev), 0,
	"Default ESP transport mode level");
	@@ -261,8 +262,9 @@

	/* net.inet6.ipsec6 */
	SYSCTL_PROC(_net_inet6_ipsec6, IPSECCTL_DEF_POLICY, def_policy,
	- CTLTYPE_INT \| CTLFLAG_VNET \| CTLFLAG_RW, 0, 0, sysctl_def_policy, "I",
	- "IPsec default policy.");
	+ CTLTYPE_INT \| CTLFLAG_VNET \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_def_policy, "I",
	+ "IPsec default policy.");
	SYSCTL_INT(_net_inet6_ipsec6, IPSECCTL_DEF_ESP_TRANSLEV, esp_trans_deflev,
	CTLFLAG_VNET \| CTLFLAG_RW, &VNET_NAME(ip6_esp_trans_deflev), 0,
	"Default ESP transport mode level.");
	Index: head/sys/netipsec/key.c
	===================================================================
	--- head/sys/netipsec/key.c
	+++ head/sys/netipsec/key.c
	@@ -508,7 +508,9 @@
	SYSCTL_INT(_net_key, KEYCTL_PREFERED_OLDSA, preferred_oldsa,
	CTLFLAG_VNET \| CTLFLAG_RW, &VNET_NAME(key_preferred_oldsa), 0, "");

	-static SYSCTL_NODE(_net_key, OID_AUTO, spdcache, CTLFLAG_RW, 0, "SPD cache");
	+static SYSCTL_NODE(_net_key, OID_AUTO, spdcache,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "SPD cache");

	SYSCTL_UINT(_net_key_spdcache, OID_AUTO, maxentries,
	CTLFLAG_VNET \| CTLFLAG_RDTUN, &VNET_NAME(key_spdcache_maxentries), 0,
	Index: head/sys/netipsec/keysock.c
	===================================================================
	--- head/sys/netipsec/keysock.c
	+++ head/sys/netipsec/keysock.c
	@@ -431,7 +431,8 @@
	};

	/* sysctl */
	-SYSCTL_NODE(_net, PF_KEY, key, CTLFLAG_RW, 0, "Key Family");
	+SYSCTL_NODE(_net, PF_KEY, key, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Key Family");

	/*
	* Definitions of protocols supported in the KEY domain.
	Index: head/sys/netpfil/ipfw/dn_aqm_codel.c
	===================================================================
	--- head/sys/netpfil/ipfw/dn_aqm_codel.c
	+++ head/sys/netpfil/ipfw/dn_aqm_codel.c
	@@ -118,17 +118,20 @@
	SYSCTL_DECL(_net_inet);
	SYSCTL_DECL(_net_inet_ip);
	SYSCTL_DECL(_net_inet_ip_dummynet);
	-static SYSCTL_NODE(_net_inet_ip_dummynet, OID_AUTO,
	- codel, CTLFLAG_RW, 0, "CODEL");
	+static SYSCTL_NODE(_net_inet_ip_dummynet, OID_AUTO, codel,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "CODEL");

	#ifdef SYSCTL_NODE
	SYSCTL_PROC(_net_inet_ip_dummynet_codel, OID_AUTO, target,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0,codel_sysctl_target_handler, "L",
	- "CoDel target in microsecond");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ NULL, 0,codel_sysctl_target_handler, "L",
	+ "CoDel target in microsecond");

	SYSCTL_PROC(_net_inet_ip_dummynet_codel, OID_AUTO, interval,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0, codel_sysctl_interval_handler, "L",
	- "CoDel interval in microsecond");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ NULL, 0, codel_sysctl_interval_handler, "L",
	+ "CoDel interval in microsecond");
	#endif

	/* This function computes codel_interval/sqrt(count)
	Index: head/sys/netpfil/ipfw/dn_aqm_pie.c
	===================================================================
	--- head/sys/netpfil/ipfw/dn_aqm_pie.c
	+++ head/sys/netpfil/ipfw/dn_aqm_pie.c
	@@ -162,36 +162,37 @@
	SYSCTL_DECL(_net_inet);
	SYSCTL_DECL(_net_inet_ip);
	SYSCTL_DECL(_net_inet_ip_dummynet);
	-static SYSCTL_NODE(_net_inet_ip_dummynet, OID_AUTO,
	- pie, CTLFLAG_RW, 0, "PIE");
	+static SYSCTL_NODE(_net_inet_ip_dummynet, OID_AUTO, pie,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "PIE");

	#ifdef SYSCTL_NODE
	SYSCTL_PROC(_net_inet_ip_dummynet_pie, OID_AUTO, target,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0,
	- pie_sysctl_target_tupdate_maxb_handler, "L",
	- "queue target in microsecond");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ pie_sysctl_target_tupdate_maxb_handler, "L",
	+ "queue target in microsecond");
	SYSCTL_PROC(_net_inet_ip_dummynet_pie, OID_AUTO, tupdate,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0,
	- pie_sysctl_target_tupdate_maxb_handler, "L",
	- "the frequency of drop probability calculation in microsecond");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ pie_sysctl_target_tupdate_maxb_handler, "L",
	+ "the frequency of drop probability calculation in microsecond");
	SYSCTL_PROC(_net_inet_ip_dummynet_pie, OID_AUTO, max_burst,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0,
	- pie_sysctl_target_tupdate_maxb_handler, "L",
	- "Burst allowance interval in microsecond");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ pie_sysctl_target_tupdate_maxb_handler, "L",
	+ "Burst allowance interval in microsecond");

	SYSCTL_PROC(_net_inet_ip_dummynet_pie, OID_AUTO, max_ecnth,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0,
	- pie_sysctl_max_ecnth_handler, "L",
	- "ECN safeguard threshold scaled by 1000");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ pie_sysctl_max_ecnth_handler, "L",
	+ "ECN safeguard threshold scaled by 1000");

	SYSCTL_PROC(_net_inet_ip_dummynet_pie, OID_AUTO, alpha,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0,
	- pie_sysctl_alpha_beta_handler, "L",
	- "PIE alpha scaled by 1000");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ pie_sysctl_alpha_beta_handler, "L",
	+ "PIE alpha scaled by 1000");
	SYSCTL_PROC(_net_inet_ip_dummynet_pie, OID_AUTO, beta,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0,
	- pie_sysctl_alpha_beta_handler, "L",
	- "beta scaled by 1000");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ pie_sysctl_alpha_beta_handler, "L",
	+ "beta scaled by 1000");
	#endif


	Index: head/sys/netpfil/ipfw/dn_sched_fq_codel.c
	===================================================================
	--- head/sys/netpfil/ipfw/dn_sched_fq_codel.c
	+++ head/sys/netpfil/ipfw/dn_sched_fq_codel.c
	@@ -130,16 +130,19 @@
	SYSCTL_DECL(_net_inet_ip);
	SYSCTL_DECL(_net_inet_ip_dummynet);
	static SYSCTL_NODE(_net_inet_ip_dummynet, OID_AUTO, fqcodel,
	- CTLFLAG_RW, 0, "FQ_CODEL");
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "FQ_CODEL");

	#ifdef SYSCTL_NODE

	SYSCTL_PROC(_net_inet_ip_dummynet_fqcodel, OID_AUTO, target,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0, fqcodel_sysctl_target_handler, "L",
	- "FQ_CoDel target in microsecond");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ NULL, 0, fqcodel_sysctl_target_handler, "L",
	+ "FQ_CoDel target in microsecond");
	SYSCTL_PROC(_net_inet_ip_dummynet_fqcodel, OID_AUTO, interval,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0, fqcodel_sysctl_interval_handler, "L",
	- "FQ_CoDel interval in microsecond");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ NULL, 0, fqcodel_sysctl_interval_handler, "L",
	+ "FQ_CoDel interval in microsecond");

	SYSCTL_UINT(_net_inet_ip_dummynet_fqcodel, OID_AUTO, quantum,
	CTLFLAG_RW, &fq_codel_sysctl.quantum, 1514, "FQ_CoDel quantum");
	Index: head/sys/netpfil/ipfw/dn_sched_fq_pie.c
	===================================================================
	--- head/sys/netpfil/ipfw/dn_sched_fq_pie.c
	+++ head/sys/netpfil/ipfw/dn_sched_fq_pie.c
	@@ -238,37 +238,40 @@
	SYSCTL_DECL(_net_inet_ip);
	SYSCTL_DECL(_net_inet_ip_dummynet);
	static SYSCTL_NODE(_net_inet_ip_dummynet, OID_AUTO, fqpie,
	- CTLFLAG_RW, 0, "FQ_PIE");
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "FQ_PIE");

	#ifdef SYSCTL_NODE

	SYSCTL_PROC(_net_inet_ip_dummynet_fqpie, OID_AUTO, target,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0,
	- fqpie_sysctl_target_tupdate_maxb_handler, "L",
	- "queue target in microsecond");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ fqpie_sysctl_target_tupdate_maxb_handler, "L",
	+ "queue target in microsecond");

	SYSCTL_PROC(_net_inet_ip_dummynet_fqpie, OID_AUTO, tupdate,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0,
	- fqpie_sysctl_target_tupdate_maxb_handler, "L",
	- "the frequency of drop probability calculation in microsecond");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ fqpie_sysctl_target_tupdate_maxb_handler, "L",
	+ "the frequency of drop probability calculation in microsecond");

	SYSCTL_PROC(_net_inet_ip_dummynet_fqpie, OID_AUTO, max_burst,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0,
	- fqpie_sysctl_target_tupdate_maxb_handler, "L",
	- "Burst allowance interval in microsecond");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ fqpie_sysctl_target_tupdate_maxb_handler, "L",
	+ "Burst allowance interval in microsecond");

	SYSCTL_PROC(_net_inet_ip_dummynet_fqpie, OID_AUTO, max_ecnth,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0,
	- fqpie_sysctl_max_ecnth_handler, "L",
	- "ECN safeguard threshold scaled by 1000");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ fqpie_sysctl_max_ecnth_handler, "L",
	+ "ECN safeguard threshold scaled by 1000");

	SYSCTL_PROC(_net_inet_ip_dummynet_fqpie, OID_AUTO, alpha,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0,
	- fqpie_sysctl_alpha_beta_handler, "L", "PIE alpha scaled by 1000");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ fqpie_sysctl_alpha_beta_handler, "L",
	+ "PIE alpha scaled by 1000");

	SYSCTL_PROC(_net_inet_ip_dummynet_fqpie, OID_AUTO, beta,
	- CTLTYPE_LONG \| CTLFLAG_RW, NULL, 0,
	- fqpie_sysctl_alpha_beta_handler, "L", "beta scaled by 1000");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ fqpie_sysctl_alpha_beta_handler, "L",
	+ "beta scaled by 1000");

	SYSCTL_UINT(_net_inet_ip_dummynet_fqpie, OID_AUTO, quantum,
	CTLFLAG_RW, &fq_pie_sysctl.quantum, 1514, "quantum for FQ_PIE");
	Index: head/sys/netpfil/ipfw/ip_dn_io.c
	===================================================================
	--- head/sys/netpfil/ipfw/ip_dn_io.c
	+++ head/sys/netpfil/ipfw/ip_dn_io.c
	@@ -159,9 +159,12 @@
	SYSCTL_DECL(_net_inet);
	SYSCTL_DECL(_net_inet_ip);
	#ifdef NEW_AQM
	-SYSCTL_NODE(_net_inet_ip, OID_AUTO, dummynet, CTLFLAG_RW, 0, "Dummynet");
	+SYSCTL_NODE(_net_inet_ip, OID_AUTO, dummynet, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Dummynet");
	#else
	-static SYSCTL_NODE(_net_inet_ip, OID_AUTO, dummynet, CTLFLAG_RW, 0, "Dummynet");
	+static SYSCTL_NODE(_net_inet_ip, OID_AUTO, dummynet,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Dummynet");
	#endif

	/* wrapper to pass dn_cfg fields to SYSCTL_* */
	@@ -171,16 +174,19 @@


	SYSCTL_PROC(_net_inet_ip_dummynet, OID_AUTO, hash_size,
	- CTLTYPE_INT \| CTLFLAG_RW, 0, 0, sysctl_hash_size,
	- "I", "Default hash table size");
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_hash_size, "I",
	+ "Default hash table size");


	SYSCTL_PROC(_net_inet_ip_dummynet, OID_AUTO, pipe_slot_limit,
	- CTLTYPE_LONG \| CTLFLAG_RW, 0, 1, sysctl_limits,
	- "L", "Upper limit in slots for pipe queue.");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ 0, 1, sysctl_limits, "L",
	+ "Upper limit in slots for pipe queue.");
	SYSCTL_PROC(_net_inet_ip_dummynet, OID_AUTO, pipe_byte_limit,
	- CTLTYPE_LONG \| CTLFLAG_RW, 0, 0, sysctl_limits,
	- "L", "Upper limit in bytes for pipe queue.");
	+ CTLTYPE_LONG \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_limits, "L",
	+ "Upper limit in bytes for pipe queue.");
	SYSCTL_INT(_net_inet_ip_dummynet, OID_AUTO, io_fast,
	CTLFLAG_RW, DC(io_fast), 0, "Enable fast dummynet io.");
	SYSCTL_INT(_net_inet_ip_dummynet, OID_AUTO, debug,
	Index: head/sys/netpfil/ipfw/ip_fw2.c
	===================================================================
	--- head/sys/netpfil/ipfw/ip_fw2.c
	+++ head/sys/netpfil/ipfw/ip_fw2.c
	@@ -179,7 +179,8 @@

	SYSBEGIN(f3)

	-SYSCTL_NODE(_net_inet_ip, OID_AUTO, fw, CTLFLAG_RW, 0, "Firewall");
	+SYSCTL_NODE(_net_inet_ip, OID_AUTO, fw, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Firewall");
	SYSCTL_INT(_net_inet_ip_fw, OID_AUTO, one_pass,
	CTLFLAG_VNET \| CTLFLAG_RW \| CTLFLAG_SECURE3, &VNET_NAME(fw_one_pass), 0,
	"Only do a single pass through ipfw when using dummynet(4)");
	@@ -196,10 +197,11 @@
	&dummy_def, 0,
	"The default/max possible rule number.");
	SYSCTL_PROC(_net_inet_ip_fw, OID_AUTO, tables_max,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW, 0, 0, sysctl_ipfw_table_num, "IU",
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ 0, 0, sysctl_ipfw_table_num, "IU",
	"Maximum number of concurrently used tables");
	SYSCTL_PROC(_net_inet_ip_fw, OID_AUTO, tables_sets,
	- CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW,
	+ CTLFLAG_VNET \| CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	0, 0, sysctl_ipfw_tables_sets, "IU",
	"Use per-set namespace for tables");
	SYSCTL_INT(_net_inet_ip_fw, OID_AUTO, default_to_accept, CTLFLAG_RDTUN,
	@@ -212,7 +214,8 @@

	#ifdef INET6
	SYSCTL_DECL(_net_inet6_ip6);
	-SYSCTL_NODE(_net_inet6_ip6, OID_AUTO, fw, CTLFLAG_RW, 0, "Firewall");
	+SYSCTL_NODE(_net_inet6_ip6, OID_AUTO, fw, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Firewall");
	SYSCTL_INT(_net_inet6_ip6_fw, OID_AUTO, deny_unknown_exthdrs,
	CTLFLAG_VNET \| CTLFLAG_RW \| CTLFLAG_SECURE,
	&VNET_NAME(fw_deny_unknown_exthdrs), 0,
	Index: head/sys/netpfil/ipfw/ip_fw_dynamic.c
	===================================================================
	--- head/sys/netpfil/ipfw/ip_fw_dynamic.c
	+++ head/sys/netpfil/ipfw/ip_fw_dynamic.c
	@@ -453,14 +453,17 @@
	CTLFLAG_VNET \| CTLFLAG_RD, &VNET_NAME(curr_max_length), 0,
	"Current maximum length of states chains in hash buckets.");
	SYSCTL_PROC(_net_inet_ip_fw, OID_AUTO, dyn_buckets,
	- CTLFLAG_VNET \| CTLTYPE_U32 \| CTLFLAG_RW, 0, 0, sysctl_dyn_buckets,
	- "IU", "Max number of buckets for dynamic states hash table.");
	+ CTLFLAG_VNET \| CTLTYPE_U32 \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_dyn_buckets, "IU",
	+ "Max number of buckets for dynamic states hash table.");
	SYSCTL_PROC(_net_inet_ip_fw, OID_AUTO, dyn_max,
	- CTLFLAG_VNET \| CTLTYPE_U32 \| CTLFLAG_RW, 0, 0, sysctl_dyn_max,
	- "IU", "Max number of dynamic states.");
	+ CTLFLAG_VNET \| CTLTYPE_U32 \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_dyn_max, "IU",
	+ "Max number of dynamic states.");
	SYSCTL_PROC(_net_inet_ip_fw, OID_AUTO, dyn_parent_max,
	- CTLFLAG_VNET \| CTLTYPE_U32 \| CTLFLAG_RW, 0, 0, sysctl_dyn_parent_max,
	- "IU", "Max number of parent dynamic states.");
	+ CTLFLAG_VNET \| CTLTYPE_U32 \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_dyn_parent_max, "IU",
	+ "Max number of parent dynamic states.");
	SYSCTL_U32(_net_inet_ip_fw, OID_AUTO, dyn_ack_lifetime,
	CTLFLAG_VNET \| CTLFLAG_RW, &VNET_NAME(dyn_ack_lifetime), 0,
	"Lifetime of dynamic states for TCP ACK.");
	Index: head/sys/netpfil/ipfw/ip_fw_pfil.c
	===================================================================
	--- head/sys/netpfil/ipfw/ip_fw_pfil.c
	+++ head/sys/netpfil/ipfw/ip_fw_pfil.c
	@@ -93,19 +93,21 @@

	SYSCTL_DECL(_net_inet_ip_fw);
	SYSCTL_PROC(_net_inet_ip_fw, OID_AUTO, enable,
	- CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE3,
	- &VNET_NAME(fw_enable), 0, ipfw_chg_hook, "I", "Enable ipfw");
	+ CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE3 \|
	+ CTLFLAG_NEEDGIANT, &VNET_NAME(fw_enable), 0, ipfw_chg_hook, "I",
	+ "Enable ipfw");
	#ifdef INET6
	SYSCTL_DECL(_net_inet6_ip6_fw);
	SYSCTL_PROC(_net_inet6_ip6_fw, OID_AUTO, enable,
	- CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE3,
	- &VNET_NAME(fw6_enable), 0, ipfw_chg_hook, "I", "Enable ipfw+6");
	+ CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE3 \|
	+ CTLFLAG_NEEDGIANT, &VNET_NAME(fw6_enable), 0, ipfw_chg_hook, "I",
	+ "Enable ipfw+6");
	#endif /* INET6 */

	SYSCTL_DECL(_net_link_ether);
	SYSCTL_PROC(_net_link_ether, OID_AUTO, ipfw,
	- CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE3,
	- &VNET_NAME(fwlink_enable), 0, ipfw_chg_hook, "I",
	+ CTLFLAG_VNET \| CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_SECURE3 \|
	+ CTLFLAG_NEEDGIANT, &VNET_NAME(fwlink_enable), 0, ipfw_chg_hook, "I",
	"Pass ether pkts through firewall");

	SYSEND
	Index: head/sys/netpfil/ipfw/nat64/ip_fw_nat64.c
	===================================================================
	--- head/sys/netpfil/ipfw/nat64/ip_fw_nat64.c
	+++ head/sys/netpfil/ipfw/nat64/ip_fw_nat64.c
	@@ -72,7 +72,8 @@
	return (0);
	}
	SYSCTL_PROC(_net_inet_ip_fw, OID_AUTO, nat64_direct_output,
	- CTLFLAG_VNET \| CTLTYPE_U32 \| CTLFLAG_RW, 0, 0, sysctl_direct_output, "IU",
	+ CTLFLAG_VNET \| CTLTYPE_U32 \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_direct_output, "IU",
	"Use if_output directly instead of deffered netisr-based processing");

	static int
	Index: head/sys/netsmb/smb_conn.c
	===================================================================
	--- head/sys/netsmb/smb_conn.c
	+++ head/sys/netsmb/smb_conn.c
	@@ -54,7 +54,8 @@
	static struct smb_connobj smb_vclist;
	static int smb_vcnext = 1; /* next unique id for VC */

	-SYSCTL_NODE(_net, OID_AUTO, smb, CTLFLAG_RW, NULL, "SMB protocol");
	+SYSCTL_NODE(_net, OID_AUTO, smb, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ "SMB protocol");

	static MALLOC_DEFINE(M_SMBCONN, "smb_conn", "SMB connection");

	@@ -69,8 +70,10 @@

	static int smb_sysctl_treedump(SYSCTL_HANDLER_ARGS);

	-SYSCTL_PROC(_net_smb, OID_AUTO, treedump, CTLFLAG_RD \| CTLTYPE_OPAQUE,
	- NULL, 0, smb_sysctl_treedump, "S,treedump", "Requester tree");
	+SYSCTL_PROC(_net_smb, OID_AUTO, treedump,
	+ CTLFLAG_RD \| CTLTYPE_OPAQUE \| CTLFLAG_MPSAFE,
	+ NULL, 0, smb_sysctl_treedump, "S,treedump",
	+ "Requester tree");

	int
	smb_sm_init(void)
	Index: head/sys/nfs/nfs_fha.c
	===================================================================
	--- head/sys/nfs/nfs_fha.c
	+++ head/sys/nfs/nfs_fha.c
	@@ -98,8 +98,8 @@
	"single nfsd thread should be working on at any time");

	SYSCTL_ADD_OID(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
	- OID_AUTO, "fhe_stats", CTLTYPE_STRING \| CTLFLAG_RD, 0, 0,
	- softc->callbacks.fhe_stats_sysctl, "A", "");
	+ OID_AUTO, "fhe_stats", CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ 0, 0, softc->callbacks.fhe_stats_sysctl, "A", "");

	}

	Index: head/sys/nlm/nlm_prot_impl.c
	===================================================================
	--- head/sys/nlm/nlm_prot_impl.c
	+++ head/sys/nlm/nlm_prot_impl.c
	@@ -86,9 +86,11 @@
	/*
	* Support for sysctl vfs.nlm.sysid
	*/
	-static SYSCTL_NODE(_vfs, OID_AUTO, nlm, CTLFLAG_RW, NULL,
	+static SYSCTL_NODE(_vfs, OID_AUTO, nlm, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	"Network Lock Manager");
	-static SYSCTL_NODE(_vfs_nlm, OID_AUTO, sysid, CTLFLAG_RW, NULL, "");
	+static SYSCTL_NODE(_vfs_nlm, OID_AUTO, sysid,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ "");

	/*
	* Syscall hooks
	@@ -850,7 +852,8 @@
	sysctl_ctx_init(&host->nh_sysctl);
	oid = SYSCTL_ADD_NODE(&host->nh_sysctl,
	SYSCTL_STATIC_CHILDREN(_vfs_nlm_sysid),
	- OID_AUTO, host->nh_sysid_string, CTLFLAG_RD, NULL, "");
	+ OID_AUTO, host->nh_sysid_string, CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ NULL, "");
	SYSCTL_ADD_STRING(&host->nh_sysctl, SYSCTL_CHILDREN(oid), OID_AUTO,
	"hostname", CTLFLAG_RD, host->nh_caller_name, 0, "");
	SYSCTL_ADD_UINT(&host->nh_sysctl, SYSCTL_CHILDREN(oid), OID_AUTO,
	@@ -858,11 +861,11 @@
	SYSCTL_ADD_UINT(&host->nh_sysctl, SYSCTL_CHILDREN(oid), OID_AUTO,
	"monitored", CTLFLAG_RD, &host->nh_monstate, 0, "");
	SYSCTL_ADD_PROC(&host->nh_sysctl, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "lock_count", CTLTYPE_INT \| CTLFLAG_RD, host, 0,
	- nlm_host_lock_count_sysctl, "I", "");
	+ "lock_count", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, host,
	+ 0, nlm_host_lock_count_sysctl, "I", "");
	SYSCTL_ADD_PROC(&host->nh_sysctl, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "client_lock_count", CTLTYPE_INT \| CTLFLAG_RD, host, 0,
	- nlm_host_client_lock_count_sysctl, "I", "");
	+ "client_lock_count", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ host, 0, nlm_host_client_lock_count_sysctl, "I", "");

	mtx_lock(&nlm_global_lock);

	Index: head/sys/ofed/drivers/infiniband/ulp/sdp/sdp_main.c
	===================================================================
	--- head/sys/ofed/drivers/infiniband/ulp/sdp/sdp_main.c
	+++ head/sys/ofed/drivers/infiniband/ulp/sdp/sdp_main.c
	@@ -1881,10 +1881,12 @@
	return (error);
	}

	-SYSCTL_NODE(_net_inet, -1, sdp, CTLFLAG_RW, 0, "SDP");
	+SYSCTL_NODE(_net_inet, -1, sdp, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "SDP");

	SYSCTL_PROC(_net_inet_sdp, TCPCTL_PCBLIST, pcblist,
	- CTLFLAG_RD \| CTLTYPE_STRUCT, 0, 0, sdp_pcblist, "S,xtcpcb",
	+ CTLFLAG_RD \| CTLTYPE_STRUCT \| CTLFLAG_MPSAFE,
	+ 0, 0, sdp_pcblist, "S,xtcpcb",
	"List of active SDP connections");

	static void
	Index: head/sys/opencrypto/ktls_ocf.c
	===================================================================
	--- head/sys/opencrypto/ktls_ocf.c
	+++ head/sys/opencrypto/ktls_ocf.c
	@@ -60,7 +60,8 @@
	SYSCTL_DECL(_kern_ipc_tls);
	SYSCTL_DECL(_kern_ipc_tls_stats);

	-static SYSCTL_NODE(_kern_ipc_tls_stats, OID_AUTO, ocf, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_kern_ipc_tls_stats, OID_AUTO, ocf,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Kernel TLS offload via OCF stats");

	static counter_u64_t ocf_tls12_gcm_crypts;
	Index: head/sys/powerpc/amigaone/cpld_x5000.c
	===================================================================
	--- head/sys/powerpc/amigaone/cpld_x5000.c
	+++ head/sys/powerpc/amigaone/cpld_x5000.c
	@@ -184,7 +184,7 @@
	tree = device_get_sysctl_tree(dev);

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "cpu_fan", CTLTYPE_INT \| CTLFLAG_RD, sc, 0,
	+ "cpu_fan", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, sc, 0,
	cpld_fan_sysctl, "I", "CPU Fan speed in RPM");

	make_dev_args_init(&mda);
	Index: head/sys/powerpc/fpu/fpu_emu.c
	===================================================================
	--- head/sys/powerpc/fpu/fpu_emu.c
	+++ head/sys/powerpc/fpu/fpu_emu.c
	@@ -99,7 +99,8 @@
	#include <powerpc/fpu/fpu_extern.h>
	#include <powerpc/fpu/fpu_instr.h>

	-static SYSCTL_NODE(_hw, OID_AUTO, fpu_emu, CTLFLAG_RW, 0, "FPU emulator");
	+static SYSCTL_NODE(_hw, OID_AUTO, fpu_emu, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "FPU emulator");

	#define FPU_EMU_EVCNT_DECL(name) \
	static u_int fpu_emu_evcnt_##name; \
	Index: head/sys/powerpc/ofw/ofw_syscons.c
	===================================================================
	--- head/sys/powerpc/ofw/ofw_syscons.c
	+++ head/sys/powerpc/ofw/ofw_syscons.c
	@@ -60,7 +60,8 @@

	static int ofwfb_ignore_mmap_checks = 1;
	static int ofwfb_reset_on_switch = 1;
	-static SYSCTL_NODE(_hw, OID_AUTO, ofwfb, CTLFLAG_RD, 0, "ofwfb");
	+static SYSCTL_NODE(_hw, OID_AUTO, ofwfb, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "ofwfb");
	SYSCTL_INT(_hw_ofwfb, OID_AUTO, relax_mmap, CTLFLAG_RW,
	&ofwfb_ignore_mmap_checks, 0, "relaxed mmap bounds checking");
	SYSCTL_INT(_hw_ofwfb, OID_AUTO, reset_on_mode_switch, CTLFLAG_RW,
	Index: head/sys/powerpc/powermac/atibl.c
	===================================================================
	--- head/sys/powerpc/powermac/atibl.c
	+++ head/sys/powerpc/powermac/atibl.c
	@@ -160,7 +160,7 @@
	tree = device_get_sysctl_tree(dev);

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "level", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ "level", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	atibl_sysctl, "I", "Backlight level (0-100)");

	return (0);
	Index: head/sys/powerpc/powermac/fcu.c
	===================================================================
	--- head/sys/powerpc/powermac/fcu.c
	+++ head/sys/powerpc/powermac/fcu.c
	@@ -600,7 +600,7 @@
	ctx = device_get_sysctl_ctx(dev);
	fanroot_oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "fans",
	- CTLFLAG_RD, 0, "FCU Fan Information");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "FCU Fan Information");

	/* Now we can fill the properties into the allocated struct. */
	sc->sc_nfans = fcu_fill_fan_prop(dev);
	@@ -620,8 +620,8 @@

	if (sc->sc_fans[i].type == FCU_FAN_RPM) {
	oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(fanroot_oid),
	- OID_AUTO, sysctl_name,
	- CTLFLAG_RD, 0, "Fan Information");
	+ OID_AUTO, sysctl_name, CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ 0, "Fan Information");
	SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	"minrpm", CTLFLAG_RD,
	&(sc->sc_fans[i].fan.min_rpm), 0,
	@@ -632,16 +632,16 @@
	"Maximum allowed RPM");
	/* I use i to pass the fan id. */
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "rpm", CTLTYPE_INT \| CTLFLAG_RW, dev, i,
	- fcu_fanrpm_sysctl, "I", "Fan RPM");
	+ "rpm", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ dev, i, fcu_fanrpm_sysctl, "I", "Fan RPM");
	} else {
	fcu_fan_get_pwm(dev, &sc->sc_fans[i],
	&sc->sc_fans[i].setpoint,
	&sc->sc_fans[i].rpm);

	oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(fanroot_oid),
	- OID_AUTO, sysctl_name,
	- CTLFLAG_RD, 0, "Fan Information");
	+ OID_AUTO, sysctl_name, CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ 0, "Fan Information");
	SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	"minpwm", CTLFLAG_RD,
	&(sc->sc_fans[i].fan.min_rpm), 0,
	@@ -654,13 +654,13 @@
	* of info I want to display/modify.
	*/
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "pwm", CTLTYPE_INT \| CTLFLAG_RW, dev,
	- FCU_PWM_SYSCTL_PWM \| i,
	- fcu_fanrpm_sysctl, "I", "Fan PWM in %");
	+ "pwm", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ dev, FCU_PWM_SYSCTL_PWM \| i, fcu_fanrpm_sysctl, "I",
	+ "Fan PWM in %");
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "rpm", CTLTYPE_INT \| CTLFLAG_RD, dev,
	- FCU_PWM_SYSCTL_RPM \| i,
	- fcu_fanrpm_sysctl, "I", "Fan RPM");
	+ "rpm", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ dev, FCU_PWM_SYSCTL_RPM \| i, fcu_fanrpm_sysctl, "I",
	+ "Fan RPM");
	}
	}

	Index: head/sys/powerpc/powermac/nvbl.c
	===================================================================
	--- head/sys/powerpc/powermac/nvbl.c
	+++ head/sys/powerpc/powermac/nvbl.c
	@@ -144,8 +144,8 @@
	tree = device_get_sysctl_tree(dev);

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "level", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	- nvbl_sysctl, "I", "Backlight level (0-100)");
	+ "level", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ nvbl_sysctl, "I", "Backlight level (0-100)");

	return (0);
	}
	Index: head/sys/powerpc/powermac/pmu.c
	===================================================================
	--- head/sys/powerpc/powermac/pmu.c
	+++ head/sys/powerpc/powermac/pmu.c
	@@ -433,7 +433,7 @@
	tree = device_get_sysctl_tree(dev);

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "server_mode", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ "server_mode", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, sc, 0,
	pmu_server_mode, "I", "Enable reboot after power failure");

	if (sc->sc_batteries > 0) {
	@@ -443,59 +443,69 @@
	/* Only start the battery monitor if we have a battery. */
	kproc_start(&pmu_batt_kp);
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "monitor_batteries", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	+ "monitor_batteries",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	pmu_battmon, "I", "Post battery events to devd");


	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "acline", CTLTYPE_INT \| CTLFLAG_RD, sc, 0,
	- pmu_acline_state, "I", "AC Line Status");
	+ "acline", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, sc,
	+ 0, pmu_acline_state, "I", "AC Line Status");

	battroot = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "batteries", CTLFLAG_RD, 0, "Battery Information");
	+ "batteries", CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Battery Information");

	for (i = 0; i < sc->sc_batteries; i++) {
	battnum[0] = i + '0';
	battnum[1] = '\0';

	oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(battroot),
	- OID_AUTO, battnum, CTLFLAG_RD, 0,
	+ OID_AUTO, battnum, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Battery Information");

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "present", CTLTYPE_INT \| CTLFLAG_RD, sc,
	- PMU_BATSYSCTL_PRESENT \| i, pmu_battquery_sysctl,
	+ "present",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, sc,
	+ PMU_BATSYSCTL_PRESENT \| i, pmu_battquery_sysctl,
	"I", "Battery present");
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "charging", CTLTYPE_INT \| CTLFLAG_RD, sc,
	- PMU_BATSYSCTL_CHARGING \| i, pmu_battquery_sysctl,
	+ "charging",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, sc,
	+ PMU_BATSYSCTL_CHARGING \| i, pmu_battquery_sysctl,
	"I", "Battery charging");
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "charge", CTLTYPE_INT \| CTLFLAG_RD, sc,
	- PMU_BATSYSCTL_CHARGE \| i, pmu_battquery_sysctl,
	+ "charge",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, sc,
	+ PMU_BATSYSCTL_CHARGE \| i, pmu_battquery_sysctl,
	"I", "Battery charge (mAh)");
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "maxcharge", CTLTYPE_INT \| CTLFLAG_RD, sc,
	- PMU_BATSYSCTL_MAXCHARGE \| i, pmu_battquery_sysctl,
	+ "maxcharge",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, sc,
	+ PMU_BATSYSCTL_MAXCHARGE \| i, pmu_battquery_sysctl,
	"I", "Maximum battery capacity (mAh)");
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "rate", CTLTYPE_INT \| CTLFLAG_RD, sc,
	- PMU_BATSYSCTL_CURRENT \| i, pmu_battquery_sysctl,
	+ "rate",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, sc,
	+ PMU_BATSYSCTL_CURRENT \| i, pmu_battquery_sysctl,
	"I", "Battery discharge rate (mA)");
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "voltage", CTLTYPE_INT \| CTLFLAG_RD, sc,
	- PMU_BATSYSCTL_VOLTAGE \| i, pmu_battquery_sysctl,
	+ "voltage",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, sc,
	+ PMU_BATSYSCTL_VOLTAGE \| i, pmu_battquery_sysctl,
	"I", "Battery voltage (mV)");

	/* Knobs for mental compatibility with ACPI */

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "time", CTLTYPE_INT \| CTLFLAG_RD, sc,
	- PMU_BATSYSCTL_TIME \| i, pmu_battquery_sysctl,
	+ "time",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, sc,
	+ PMU_BATSYSCTL_TIME \| i, pmu_battquery_sysctl,
	"I", "Time Remaining (minutes)");
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	- "life", CTLTYPE_INT \| CTLFLAG_RD, sc,
	- PMU_BATSYSCTL_LIFE \| i, pmu_battquery_sysctl,
	+ "life",
	+ CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, sc,
	+ PMU_BATSYSCTL_LIFE \| i, pmu_battquery_sysctl,
	"I", "Capacity remaining (percent)");
	}
	}
	Index: head/sys/powerpc/powermac/smu.c
	===================================================================
	--- head/sys/powerpc/powermac/smu.c
	+++ head/sys/powerpc/powermac/smu.c
	@@ -379,8 +379,8 @@

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "server_mode", CTLTYPE_INT \| CTLFLAG_RW, dev, 0,
	- smu_server_mode, "I", "Enable reboot after power failure");
	+ "server_mode", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, dev,
	+ 0, smu_server_mode, "I", "Enable reboot after power failure");

	/*
	* Set up doorbell interrupt.
	@@ -1022,7 +1022,7 @@
	ctx = device_get_sysctl_ctx(dev);
	fanroot_oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "fans",
	- CTLFLAG_RD, 0, "SMU Fan Information");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "SMU Fan Information");

	/* Add sysctls */
	for (i = 0; i < sc->sc_nfans; i++) {
	@@ -1035,9 +1035,9 @@
	sysctl_name[j] = 0;
	if (fan->type == SMU_FAN_RPM) {
	oid = SYSCTL_ADD_NODE(ctx,
	- SYSCTL_CHILDREN(fanroot_oid),
	- OID_AUTO, sysctl_name,
	- CTLFLAG_RD, 0, "Fan Information");
	+ SYSCTL_CHILDREN(fanroot_oid), OID_AUTO,
	+ sysctl_name, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Fan Information");
	SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	"minrpm", CTLFLAG_RD,
	&fan->fan.min_rpm, 0,
	@@ -1056,9 +1056,9 @@

	} else {
	oid = SYSCTL_ADD_NODE(ctx,
	- SYSCTL_CHILDREN(fanroot_oid),
	- OID_AUTO, sysctl_name,
	- CTLFLAG_RD, 0, "Fan Information");
	+ SYSCTL_CHILDREN(fanroot_oid), OID_AUTO,
	+ sysctl_name, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Fan Information");
	SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
	"minpwm", CTLFLAG_RD,
	&fan->fan.min_rpm, 0,
	@@ -1205,7 +1205,7 @@
	ctx = device_get_sysctl_ctx(dev);
	sensroot_oid = SYSCTL_ADD_NODE(ctx,
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "sensors",
	- CTLFLAG_RD, 0, "SMU Sensor Information");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "SMU Sensor Information");

	for (child = OF_child(sensroot); child != 0; child = OF_peer(child)) {
	char sysctl_name[40], sysctl_desc[40];
	Index: head/sys/powerpc/powernv/opal_sensor.c
	===================================================================
	--- head/sys/powerpc/powernv/opal_sensor.c
	+++ head/sys/powerpc/powernv/opal_sensor.c
	@@ -206,9 +206,9 @@

	sc->sc_handle = sensor_id;
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "sensor", CTLTYPE_INT \| CTLFLAG_RD, sc, sensor_id,
	- opal_sensor_sysctl, (sc->sc_type == OPAL_SENSOR_TEMP) ? "IK" : "I",
	- "current value");
	+ "sensor", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE, sc,
	+ sensor_id, opal_sensor_sysctl,
	+ (sc->sc_type == OPAL_SENSOR_TEMP) ? "IK" : "I", "current value");

	SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "type",
	CTLFLAG_RD, __DECONST(char *, opal_sensor_types[sc->sc_type]),
	@@ -222,8 +222,8 @@
	&sensor_id, sizeof(sensor_id)) > 0) {
	sc->sc_min_handle = sensor_id;
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "sensor_min", CTLTYPE_INT \| CTLFLAG_RD, sc, sensor_id,
	- opal_sensor_sysctl,
	+ "sensor_min", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ sc, sensor_id, opal_sensor_sysctl,
	(sc->sc_type == OPAL_SENSOR_TEMP) ? "IK" : "I",
	"minimum value");
	}
	@@ -232,8 +232,8 @@
	&sensor_id, sizeof(sensor_id)) > 0) {
	sc->sc_max_handle = sensor_id;
	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "sensor_max", CTLTYPE_INT \| CTLFLAG_RD, sc, sensor_id,
	- opal_sensor_sysctl,
	+ "sensor_max", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ sc, sensor_id, opal_sensor_sysctl,
	(sc->sc_type == OPAL_SENSOR_TEMP) ? "IK" : "I",
	"maximum value");
	}
	Index: head/sys/powerpc/powerpc/busdma_machdep.c
	===================================================================
	--- head/sys/powerpc/powerpc/busdma_machdep.c
	+++ head/sys/powerpc/powerpc/busdma_machdep.c
	@@ -120,7 +120,8 @@
	static int busdma_zonecount;
	static STAILQ_HEAD(, bounce_zone) bounce_zone_list;

	-static SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD, 0, "Busdma parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Busdma parameters");
	SYSCTL_INT(_hw_busdma, OID_AUTO, total_bpages, CTLFLAG_RD, &total_bpages, 0,
	"Total bounce pages");

	@@ -1072,7 +1073,7 @@
	sysctl_ctx_init(&bz->sysctl_tree);
	bz->sysctl_tree_top = SYSCTL_ADD_NODE(&bz->sysctl_tree,
	SYSCTL_STATIC_CHILDREN(_hw_busdma), OID_AUTO, bz->zoneid,
	- CTLFLAG_RD, 0, "");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");
	if (bz->sysctl_tree_top == NULL) {
	sysctl_ctx_free(&bz->sysctl_tree);
	return (0); /* XXX error code? */
	Index: head/sys/powerpc/powerpc/elf32_machdep.c
	===================================================================
	--- head/sys/powerpc/powerpc/elf32_machdep.c
	+++ head/sys/powerpc/powerpc/elf32_machdep.c
	@@ -68,7 +68,8 @@
	extern const char *freebsd32_syscallnames[];
	static void ppc32_fixlimit(struct rlimit *rl, int which);

	-static SYSCTL_NODE(_compat, OID_AUTO, ppc32, CTLFLAG_RW, 0, "32-bit mode");
	+static SYSCTL_NODE(_compat, OID_AUTO, ppc32, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "32-bit mode");

	#define PPC32_MAXDSIZ (102410241024)
	static u_long ppc32_maxdsiz = PPC32_MAXDSIZ;
	Index: head/sys/powerpc/ps3/ps3disk.c
	===================================================================
	--- head/sys/powerpc/ps3/ps3disk.c
	+++ head/sys/powerpc/ps3/ps3disk.c
	@@ -68,7 +68,7 @@

	#define LV1_STORAGE_ATA_HDDOUT 0x23

	-static SYSCTL_NODE(_hw, OID_AUTO, ps3disk, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_hw, OID_AUTO, ps3disk, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"PS3 Disk driver parameters");

	#ifdef PS3DISK_DEBUG
	@@ -681,8 +681,8 @@
	sc->sc_debug = ps3disk_debug;

	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
	- "debug", CTLTYPE_INT \| CTLFLAG_RW, sc, 0,
	- ps3disk_sysctl_debug, "I", "control debugging printfs");
	+ "debug", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, sc, 0,
	+ ps3disk_sysctl_debug, "I", "control debugging printfs");
	#endif
	}

	Index: head/sys/riscv/riscv/busdma_bounce.c
	===================================================================
	--- head/sys/riscv/riscv/busdma_bounce.c
	+++ head/sys/riscv/riscv/busdma_bounce.c
	@@ -113,7 +113,8 @@
	static int busdma_zonecount;
	static STAILQ_HEAD(, bounce_zone) bounce_zone_list;

	-static SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD, 0, "Busdma parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Busdma parameters");
	SYSCTL_INT(_hw_busdma, OID_AUTO, total_bpages, CTLFLAG_RD, &total_bpages, 0,
	"Total bounce pages");

	@@ -1119,7 +1120,7 @@
	sysctl_ctx_init(&bz->sysctl_tree);
	bz->sysctl_tree_top = SYSCTL_ADD_NODE(&bz->sysctl_tree,
	SYSCTL_STATIC_CHILDREN(_hw_busdma), OID_AUTO, bz->zoneid,
	- CTLFLAG_RD, 0, "");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");
	if (bz->sysctl_tree_top == NULL) {
	sysctl_ctx_free(&bz->sysctl_tree);
	return (0); /* XXX error code? */
	Index: head/sys/riscv/riscv/pmap.c
	===================================================================
	--- head/sys/riscv/riscv/pmap.c
	+++ head/sys/riscv/riscv/pmap.c
	@@ -234,7 +234,7 @@
	static struct rwlock_padalign pvh_global_lock;
	static struct mtx_padalign allpmaps_lock;

	-static SYSCTL_NODE(_vm, OID_AUTO, pmap, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_vm, OID_AUTO, pmap, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"VM/pmap parameters");

	static int superpages_enabled = 1;
	@@ -242,7 +242,7 @@
	CTLFLAG_RDTUN, &superpages_enabled, 0,
	"Enable support for transparent superpages");

	-static SYSCTL_NODE(_vm_pmap, OID_AUTO, l2, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_vm_pmap, OID_AUTO, l2, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"2MB page mapping counters");

	static u_long pmap_l2_demotions;
	Index: head/sys/rpc/rpcsec_gss/svc_rpcsec_gss.c
	===================================================================
	--- head/sys/rpc/rpcsec_gss/svc_rpcsec_gss.c
	+++ head/sys/rpc/rpcsec_gss/svc_rpcsec_gss.c
	@@ -174,8 +174,10 @@
	u_int svc_rpc_gss_client_max = CLIENT_MAX;
	u_int svc_rpc_gss_client_hash_size = CLIENT_HASH_SIZE;

	-SYSCTL_NODE(_kern, OID_AUTO, rpc, CTLFLAG_RW, 0, "RPC");
	-SYSCTL_NODE(_kern_rpc, OID_AUTO, gss, CTLFLAG_RW, 0, "GSS");
	+SYSCTL_NODE(_kern, OID_AUTO, rpc, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "RPC");
	+SYSCTL_NODE(_kern_rpc, OID_AUTO, gss, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "GSS");

	SYSCTL_UINT(_kern_rpc_gss, OID_AUTO, client_max, CTLFLAG_RW,
	&svc_rpc_gss_client_max, 0,
	Index: head/sys/rpc/svc.c
	===================================================================
	--- head/sys/rpc/svc.c
	+++ head/sys/rpc/svc.c
	@@ -128,15 +128,15 @@
	sysctl_ctx_init(&pool->sp_sysctl);
	if (sysctl_base) {
	SYSCTL_ADD_PROC(&pool->sp_sysctl, sysctl_base, OID_AUTO,
	- "minthreads", CTLTYPE_INT \| CTLFLAG_RW,
	+ "minthreads", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	pool, 0, svcpool_minthread_sysctl, "I",
	"Minimal number of threads");
	SYSCTL_ADD_PROC(&pool->sp_sysctl, sysctl_base, OID_AUTO,
	- "maxthreads", CTLTYPE_INT \| CTLFLAG_RW,
	+ "maxthreads", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	pool, 0, svcpool_maxthread_sysctl, "I",
	"Maximal number of threads");
	SYSCTL_ADD_PROC(&pool->sp_sysctl, sysctl_base, OID_AUTO,
	- "threads", CTLTYPE_INT \| CTLFLAG_RD,
	+ "threads", CTLTYPE_INT \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	pool, 0, svcpool_threads_sysctl, "I",
	"Current number of threads");
	SYSCTL_ADD_INT(&pool->sp_sysctl, sysctl_base, OID_AUTO,
	Index: head/sys/security/audit/audit.c
	===================================================================
	--- head/sys/security/audit/audit.c
	+++ head/sys/security/audit/audit.c
	@@ -90,7 +90,7 @@
	MALLOC_DEFINE(M_AUDITTEXT, "audit_text", "Audit text storage");
	MALLOC_DEFINE(M_AUDITGIDSET, "audit_gidset", "Audit GID set storage");

	-static SYSCTL_NODE(_security, OID_AUTO, audit, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_security, OID_AUTO, audit, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TrustedBSD audit controls");

	/*
	Index: head/sys/security/mac/mac_framework.c
	===================================================================
	--- head/sys/security/mac/mac_framework.c
	+++ head/sys/security/mac/mac_framework.c
	@@ -103,7 +103,7 @@
	/*
	* Root sysctl node for all MAC and MAC policy controls.
	*/
	-SYSCTL_NODE(_security, OID_AUTO, mac, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_security, OID_AUTO, mac, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TrustedBSD MAC policy controls");

	/*
	Index: head/sys/security/mac_biba/mac_biba.c
	===================================================================
	--- head/sys/security/mac_biba/mac_biba.c
	+++ head/sys/security/mac_biba/mac_biba.c
	@@ -92,7 +92,8 @@

	SYSCTL_DECL(_security_mac);

	-static SYSCTL_NODE(_security_mac, OID_AUTO, biba, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_security_mac, OID_AUTO, biba,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TrustedBSD mac_biba policy controls");

	static int biba_label_size = sizeof(struct mac_biba);
	Index: head/sys/security/mac_bsdextended/mac_bsdextended.c
	===================================================================
	--- head/sys/security/mac_bsdextended/mac_bsdextended.c
	+++ head/sys/security/mac_bsdextended/mac_bsdextended.c
	@@ -72,7 +72,8 @@

	SYSCTL_DECL(_security_mac);

	-static SYSCTL_NODE(_security_mac, OID_AUTO, bsdextended, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_security_mac, OID_AUTO, bsdextended,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TrustedBSD extended BSD MAC policy controls");

	static int ugidfw_enabled = 1;
	Index: head/sys/security/mac_ifoff/mac_ifoff.c
	===================================================================
	--- head/sys/security/mac_ifoff/mac_ifoff.c
	+++ head/sys/security/mac_ifoff/mac_ifoff.c
	@@ -62,7 +62,8 @@

	SYSCTL_DECL(_security_mac);

	-static SYSCTL_NODE(_security_mac, OID_AUTO, ifoff, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_security_mac, OID_AUTO, ifoff,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TrustedBSD mac_ifoff policy controls");

	static int ifoff_enabled = 1;
	Index: head/sys/security/mac_lomac/mac_lomac.c
	===================================================================
	--- head/sys/security/mac_lomac/mac_lomac.c
	+++ head/sys/security/mac_lomac/mac_lomac.c
	@@ -93,7 +93,8 @@

	SYSCTL_DECL(_security_mac);

	-static SYSCTL_NODE(_security_mac, OID_AUTO, lomac, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_security_mac, OID_AUTO, lomac,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TrustedBSD mac_lomac policy controls");

	static int lomac_label_size = sizeof(struct mac_lomac);
	Index: head/sys/security/mac_mls/mac_mls.c
	===================================================================
	--- head/sys/security/mac_mls/mac_mls.c
	+++ head/sys/security/mac_mls/mac_mls.c
	@@ -93,7 +93,8 @@

	SYSCTL_DECL(_security_mac);

	-static SYSCTL_NODE(_security_mac, OID_AUTO, mls, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_security_mac, OID_AUTO, mls,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TrustedBSD mac_mls policy controls");

	static int mls_label_size = sizeof(struct mac_mls);
	Index: head/sys/security/mac_ntpd/mac_ntpd.c
	===================================================================
	--- head/sys/security/mac_ntpd/mac_ntpd.c
	+++ head/sys/security/mac_ntpd/mac_ntpd.c
	@@ -38,7 +38,8 @@

	SYSCTL_DECL(_security_mac);

	-static SYSCTL_NODE(_security_mac, OID_AUTO, ntpd, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_security_mac, OID_AUTO, ntpd,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"mac_ntpd policy controls");

	static int ntpd_enabled = 1;
	Index: head/sys/security/mac_partition/mac_partition.c
	===================================================================
	--- head/sys/security/mac_partition/mac_partition.c
	+++ head/sys/security/mac_partition/mac_partition.c
	@@ -65,7 +65,8 @@

	SYSCTL_DECL(_security_mac);

	-static SYSCTL_NODE(_security_mac, OID_AUTO, partition, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_security_mac, OID_AUTO, partition,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TrustedBSD mac_partition policy controls");

	static int partition_enabled = 1;
	Index: head/sys/security/mac_portacl/mac_portacl.c
	===================================================================
	--- head/sys/security/mac_portacl/mac_portacl.c
	+++ head/sys/security/mac_portacl/mac_portacl.c
	@@ -83,7 +83,8 @@

	SYSCTL_DECL(_security_mac);

	-static SYSCTL_NODE(_security_mac, OID_AUTO, portacl, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_security_mac, OID_AUTO, portacl,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TrustedBSD mac_portacl policy controls");

	static int portacl_enabled = 1;
	@@ -372,7 +373,9 @@
	}

	SYSCTL_PROC(_security_mac_portacl, OID_AUTO, rules,
	- CTLTYPE_STRING\|CTLFLAG_RW, 0, 0, sysctl_rules, "A", "Rules");
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ 0, 0, sysctl_rules, "A",
	+ "Rules");

	static int
	rules_check(struct ucred *cred, int family, int type, u_int16_t port)
	Index: head/sys/security/mac_seeotheruids/mac_seeotheruids.c
	===================================================================
	--- head/sys/security/mac_seeotheruids/mac_seeotheruids.c
	+++ head/sys/security/mac_seeotheruids/mac_seeotheruids.c
	@@ -63,7 +63,8 @@

	SYSCTL_DECL(_security_mac);

	-static SYSCTL_NODE(_security_mac, OID_AUTO, seeotheruids, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_security_mac, OID_AUTO, seeotheruids,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TrustedBSD mac_seeotheruids policy controls");

	static int seeotheruids_enabled = 1;
	Index: head/sys/security/mac_stub/mac_stub.c
	===================================================================
	--- head/sys/security/mac_stub/mac_stub.c
	+++ head/sys/security/mac_stub/mac_stub.c
	@@ -89,7 +89,8 @@

	SYSCTL_DECL(_security_mac);

	-static SYSCTL_NODE(_security_mac, OID_AUTO, stub, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_security_mac, OID_AUTO, stub,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TrustedBSD mac_stub policy controls");

	static int stub_enabled = 1;
	Index: head/sys/security/mac_test/mac_test.c
	===================================================================
	--- head/sys/security/mac_test/mac_test.c
	+++ head/sys/security/mac_test/mac_test.c
	@@ -80,7 +80,8 @@

	SYSCTL_DECL(_security_mac);

	-static SYSCTL_NODE(_security_mac, OID_AUTO, test, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_security_mac, OID_AUTO, test,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TrustedBSD mac_test policy controls");

	#define MAGIC_BPF 0xfe1ad1b6
	@@ -112,7 +113,8 @@
	SYSCTL_INT(_security_mac_test, OID_AUTO, slot, CTLFLAG_RD,
	&test_slot, 0, "Slot allocated by framework");

	-static SYSCTL_NODE(_security_mac_test, OID_AUTO, counter, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_security_mac_test, OID_AUTO, counter,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"TrustedBSD mac_test counters controls");

	#define COUNTER_DECL(variable) \
	Index: head/sys/security/mac_veriexec/mac_veriexec.c
	===================================================================
	--- head/sys/security/mac_veriexec/mac_veriexec.c
	+++ head/sys/security/mac_veriexec/mac_veriexec.c
	@@ -76,7 +76,7 @@

	SYSCTL_DECL(_security_mac);

	-SYSCTL_NODE(_security_mac, OID_AUTO, veriexec, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_security_mac, OID_AUTO, veriexec, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"MAC/veriexec policy controls");

	int mac_veriexec_debug;
	@@ -85,11 +85,13 @@

	static int mac_veriexec_state;
	SYSCTL_PROC(_security_mac_veriexec, OID_AUTO, state,
	- CTLTYPE_STRING \| CTLFLAG_RD, 0, 0, sysctl_mac_veriexec_state, "A",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_mac_veriexec_state, "A",
	"Verified execution subsystem state");

	SYSCTL_PROC(_security_mac_veriexec, OID_AUTO, db,
	- CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_SKIP, 0, 0, sysctl_mac_veriexec_db,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_SKIP \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_mac_veriexec_db,
	"A", "Verified execution fingerprint database");

	static int mac_veriexec_slot;
	Index: head/sys/security/mac_veriexec/veriexec_fingerprint.c
	===================================================================
	--- head/sys/security/mac_veriexec/veriexec_fingerprint.c
	+++ head/sys/security/mac_veriexec/veriexec_fingerprint.c
	@@ -64,7 +64,8 @@
	static int sysctl_mac_veriexec_algorithms(SYSCTL_HANDLER_ARGS);

	SYSCTL_PROC(_security_mac_veriexec, OID_AUTO, algorithms,
	- CTLTYPE_STRING \| CTLFLAG_RD, 0, 0, sysctl_mac_veriexec_algorithms, "A",
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_mac_veriexec_algorithms, "A",
	"Verified execution supported hashing algorithms");

	static int
	Index: head/sys/sys/jail.h
	===================================================================
	--- head/sys/sys/jail.h
	+++ head/sys/sys/jail.h
	@@ -353,9 +353,11 @@
	CTLTYPE_STRUCT \| CTLFLAG_MPSAFE \| (access), NULL, len, \
	sysctl_jail_param, fmt, descr)
	#define SYSCTL_JAIL_PARAM_NODE(module, descr) \
	- SYSCTL_NODE(_security_jail_param, OID_AUTO, module, 0, 0, descr)
	+ SYSCTL_NODE(_security_jail_param, OID_AUTO, module, CTLFLAG_MPSAFE, \
	+ 0, descr)
	#define SYSCTL_JAIL_PARAM_SUBNODE(parent, module, descr) \
	- SYSCTL_NODE(_security_jail_param_##parent, OID_AUTO, module, 0, 0, descr)
	+ SYSCTL_NODE(_security_jail_param_##parent, OID_AUTO, module, \
	+ CTLFLAG_MPSAFE, 0, descr)
	#define SYSCTL_JAIL_PARAM_SYS_NODE(module, access, descr) \
	SYSCTL_JAIL_PARAM_NODE(module, descr); \
	SYSCTL_JAIL_PARAM(_##module, , CTLTYPE_INT \| (access), "E,jailsys", \
	Index: head/sys/tests/epoch/epoch_test.c
	===================================================================
	--- head/sys/tests/epoch/epoch_test.c
	+++ head/sys/tests/epoch/epoch_test.c
	@@ -185,9 +185,12 @@
	return (0);
	}

	-SYSCTL_NODE(_kern, OID_AUTO, epochtest, CTLFLAG_RW, 0, "Epoch Test Framework");
	-SYSCTL_PROC(_kern_epochtest, OID_AUTO, runtest, (CTLTYPE_INT \| CTLFLAG_RW),
	- 0, 0, epochtest_execute, "I", "Execute an epoch test");
	+SYSCTL_NODE(_kern, OID_AUTO, epochtest, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Epoch Test Framework");
	+SYSCTL_PROC(_kern_epochtest, OID_AUTO, runtest,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE,
	+ 0, 0, epochtest_execute, "I",
	+ "Execute an epoch test");

	static int
	epoch_test_module_event_handler(module_t mod, int what, void *arg __unused)
	Index: head/sys/tests/framework/kern_testfrwk.c
	===================================================================
	--- head/sys/tests/framework/kern_testfrwk.c
	+++ head/sys/tests/framework/kern_testfrwk.c
	@@ -166,9 +166,12 @@

	static int kerntest_execute(SYSCTL_HANDLER_ARGS);

	-SYSCTL_NODE(_kern, OID_AUTO, testfrwk, CTLFLAG_RW, 0, "Kernel Test Framework");
	-SYSCTL_PROC(_kern_testfrwk, OID_AUTO, runtest, (CTLTYPE_STRUCT \| CTLFLAG_RW),
	- 0, 0, kerntest_execute, "IU", "Execute a kernel test");
	+SYSCTL_NODE(_kern, OID_AUTO, testfrwk, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Kernel Test Framework");
	+SYSCTL_PROC(_kern_testfrwk, OID_AUTO, runtest,
	+ CTLTYPE_STRUCT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ 0, 0, kerntest_execute, "IU",
	+ "Execute a kernel test");

	int
	kerntest_execute(SYSCTL_HANDLER_ARGS)
	Index: head/sys/ufs/ffs/ffs_alloc.c
	===================================================================
	--- head/sys/ufs/ffs/ffs_alloc.c
	+++ head/sys/ufs/ffs/ffs_alloc.c
	@@ -476,7 +476,8 @@
	* allocation will be used.
	*/

	-SYSCTL_NODE(_vfs, OID_AUTO, ffs, CTLFLAG_RW, 0, "FFS filesystem");
	+SYSCTL_NODE(_vfs, OID_AUTO, ffs, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "FFS filesystem");

	static int doasyncfree = 1;
	SYSCTL_INT(_vfs_ffs, OID_AUTO, doasyncfree, CTLFLAG_RW, &doasyncfree, 0,
	@@ -3101,56 +3102,74 @@

	static int sysctl_ffs_fsck(SYSCTL_HANDLER_ARGS);

	-SYSCTL_PROC(_vfs_ffs, FFS_ADJ_REFCNT, adjrefcnt, CTLFLAG_WR\|CTLTYPE_STRUCT,
	- 0, 0, sysctl_ffs_fsck, "S,fsck", "Adjust Inode Reference Count");
	+SYSCTL_PROC(_vfs_ffs, FFS_ADJ_REFCNT, adjrefcnt,
	+ CTLFLAG_WR \| CTLTYPE_STRUCT \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_ffs_fsck, "S,fsck",
	+ "Adjust Inode Reference Count");

	-static SYSCTL_NODE(_vfs_ffs, FFS_ADJ_BLKCNT, adjblkcnt, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Adjust Inode Used Blocks Count");
	+static SYSCTL_NODE(_vfs_ffs, FFS_ADJ_BLKCNT, adjblkcnt,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Adjust Inode Used Blocks Count");

	-static SYSCTL_NODE(_vfs_ffs, FFS_SET_SIZE, setsize, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Set the inode size");
	+static SYSCTL_NODE(_vfs_ffs, FFS_SET_SIZE, setsize,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Set the inode size");

	-static SYSCTL_NODE(_vfs_ffs, FFS_ADJ_NDIR, adjndir, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Adjust number of directories");
	+static SYSCTL_NODE(_vfs_ffs, FFS_ADJ_NDIR, adjndir,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Adjust number of directories");

	-static SYSCTL_NODE(_vfs_ffs, FFS_ADJ_NBFREE, adjnbfree, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Adjust number of free blocks");
	+static SYSCTL_NODE(_vfs_ffs, FFS_ADJ_NBFREE, adjnbfree,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Adjust number of free blocks");

	-static SYSCTL_NODE(_vfs_ffs, FFS_ADJ_NIFREE, adjnifree, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Adjust number of free inodes");
	+static SYSCTL_NODE(_vfs_ffs, FFS_ADJ_NIFREE, adjnifree,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Adjust number of free inodes");

	-static SYSCTL_NODE(_vfs_ffs, FFS_ADJ_NFFREE, adjnffree, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Adjust number of free frags");
	+static SYSCTL_NODE(_vfs_ffs, FFS_ADJ_NFFREE, adjnffree,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Adjust number of free frags");

	-static SYSCTL_NODE(_vfs_ffs, FFS_ADJ_NUMCLUSTERS, adjnumclusters, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Adjust number of free clusters");
	+static SYSCTL_NODE(_vfs_ffs, FFS_ADJ_NUMCLUSTERS, adjnumclusters,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Adjust number of free clusters");

	-static SYSCTL_NODE(_vfs_ffs, FFS_DIR_FREE, freedirs, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Free Range of Directory Inodes");
	+static SYSCTL_NODE(_vfs_ffs, FFS_DIR_FREE, freedirs,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Free Range of Directory Inodes");

	-static SYSCTL_NODE(_vfs_ffs, FFS_FILE_FREE, freefiles, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Free Range of File Inodes");
	+static SYSCTL_NODE(_vfs_ffs, FFS_FILE_FREE, freefiles,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Free Range of File Inodes");

	-static SYSCTL_NODE(_vfs_ffs, FFS_BLK_FREE, freeblks, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Free Range of Blocks");
	+static SYSCTL_NODE(_vfs_ffs, FFS_BLK_FREE, freeblks,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Free Range of Blocks");

	-static SYSCTL_NODE(_vfs_ffs, FFS_SET_FLAGS, setflags, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Change Filesystem Flags");
	+static SYSCTL_NODE(_vfs_ffs, FFS_SET_FLAGS, setflags,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Change Filesystem Flags");

	-static SYSCTL_NODE(_vfs_ffs, FFS_SET_CWD, setcwd, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Set Current Working Directory");
	+static SYSCTL_NODE(_vfs_ffs, FFS_SET_CWD, setcwd,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Set Current Working Directory");

	-static SYSCTL_NODE(_vfs_ffs, FFS_SET_DOTDOT, setdotdot, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Change Value of .. Entry");
	+static SYSCTL_NODE(_vfs_ffs, FFS_SET_DOTDOT, setdotdot,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Change Value of .. Entry");

	-static SYSCTL_NODE(_vfs_ffs, FFS_UNLINK, unlink, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Unlink a Duplicate Name");
	+static SYSCTL_NODE(_vfs_ffs, FFS_UNLINK, unlink,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Unlink a Duplicate Name");

	-static SYSCTL_NODE(_vfs_ffs, FFS_SET_INODE, setinode, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Update an On-Disk Inode");
	+static SYSCTL_NODE(_vfs_ffs, FFS_SET_INODE, setinode,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Update an On-Disk Inode");

	-static SYSCTL_NODE(_vfs_ffs, FFS_SET_BUFOUTPUT, setbufoutput, CTLFLAG_WR,
	- sysctl_ffs_fsck, "Set Buffered Writing for Descriptor");
	+static SYSCTL_NODE(_vfs_ffs, FFS_SET_BUFOUTPUT, setbufoutput,
	+ CTLFLAG_WR \| CTLFLAG_NEEDGIANT, sysctl_ffs_fsck,
	+ "Set Buffered Writing for Descriptor");

	#ifdef DIAGNOSTIC
	static int fsckcmds = 0;
	Index: head/sys/ufs/ffs/ffs_softdep.c
	===================================================================
	--- head/sys/ufs/ffs/ffs_softdep.c
	+++ head/sys/ufs/ffs/ffs_softdep.c
	@@ -613,15 +613,19 @@

	FEATURE(softupdates, "FFS soft-updates support");

	-static SYSCTL_NODE(_debug, OID_AUTO, softdep, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_debug, OID_AUTO, softdep, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"soft updates stats");
	-static SYSCTL_NODE(_debug_softdep, OID_AUTO, total, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_debug_softdep, OID_AUTO, total,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"total dependencies allocated");
	-static SYSCTL_NODE(_debug_softdep, OID_AUTO, highuse, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_debug_softdep, OID_AUTO, highuse,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"high use dependencies allocated");
	-static SYSCTL_NODE(_debug_softdep, OID_AUTO, current, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_debug_softdep, OID_AUTO, current,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"current dependencies allocated");
	-static SYSCTL_NODE(_debug_softdep, OID_AUTO, write, CTLFLAG_RW, 0,
	+static SYSCTL_NODE(_debug_softdep, OID_AUTO, write,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"current dependencies written");

	unsigned long dep_current[D_LAST + 1];
	Index: head/sys/ufs/ufs/ufs_dirhash.c
	===================================================================
	--- head/sys/ufs/ufs/ufs_dirhash.c
	+++ head/sys/ufs/ufs/ufs_dirhash.c
	@@ -90,7 +90,8 @@
	static int ufs_dirhashreclaimpercent = 10;
	static int ufsdirhash_set_reclaimpercent(SYSCTL_HANDLER_ARGS);
	SYSCTL_PROC(_vfs_ufs, OID_AUTO, dirhash_reclaimpercent,
	- CTLTYPE_INT \| CTLFLAG_RW, 0, 0, ufsdirhash_set_reclaimpercent, "I",
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ 0, 0, ufsdirhash_set_reclaimpercent, "I",
	"set percentage of dirhash cache to be removed in low VM events");


	Index: head/sys/ufs/ufs/ufs_vnops.c
	===================================================================
	--- head/sys/ufs/ufs/ufs_vnops.c
	+++ head/sys/ufs/ufs/ufs_vnops.c
	@@ -125,7 +125,8 @@
	static vop_close_t ufsfifo_close;
	static vop_kqfilter_t ufsfifo_kqfilter;

	-SYSCTL_NODE(_vfs, OID_AUTO, ufs, CTLFLAG_RD, 0, "UFS filesystem");
	+SYSCTL_NODE(_vfs, OID_AUTO, ufs, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "UFS filesystem");

	/*
	* A virgin directory (no blushing please).
	Index: head/sys/vm/memguard.c
	===================================================================
	--- head/sys/vm/memguard.c
	+++ head/sys/vm/memguard.c
	@@ -64,7 +64,8 @@
	#include <vm/uma_int.h>
	#include <vm/memguard.h>

	-static SYSCTL_NODE(_vm, OID_AUTO, memguard, CTLFLAG_RW, NULL, "MemGuard data");
	+static SYSCTL_NODE(_vm, OID_AUTO, memguard, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ "MemGuard data");
	/*
	* The vm_memguard_divisor variable controls how much of kernel_arena should be
	* reserved for MemGuard.
	Index: head/sys/vm/redzone.c
	===================================================================
	--- head/sys/vm/redzone.c
	+++ head/sys/vm/redzone.c
	@@ -38,7 +38,8 @@
	#include <vm/redzone.h>


	-static SYSCTL_NODE(_vm, OID_AUTO, redzone, CTLFLAG_RW, NULL, "RedZone data");
	+static SYSCTL_NODE(_vm, OID_AUTO, redzone, CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	+ "RedZone data");
	static u_long redzone_extra_mem = 0;
	SYSCTL_ULONG(_vm_redzone, OID_AUTO, extra_mem, CTLFLAG_RD, &redzone_extra_mem,
	0, "Extra memory allocated by redzone");
	Index: head/sys/vm/swap_pager.c
	===================================================================
	--- head/sys/vm/swap_pager.c
	+++ head/sys/vm/swap_pager.c
	@@ -156,7 +156,8 @@
	static u_long swap_total;
	static int sysctl_page_shift(SYSCTL_HANDLER_ARGS);

	-static SYSCTL_NODE(_vm_stats, OID_AUTO, swap, CTLFLAG_RD, 0, "VM swap stats");
	+static SYSCTL_NODE(_vm_stats, OID_AUTO, swap, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "VM swap stats");

	SYSCTL_PROC(_vm, OID_AUTO, swap_reserved, CTLTYPE_U64 \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	&swap_reserved, 0, sysctl_page_shift, "A",
	Index: head/sys/vm/uma_core.c
	===================================================================
	--- head/sys/vm/uma_core.c
	+++ head/sys/vm/uma_core.c
	@@ -325,7 +325,7 @@

	static uint64_t uma_zone_get_allocs(uma_zone_t zone);

	-static SYSCTL_NODE(_vm, OID_AUTO, debug, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_vm, OID_AUTO, debug, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"Memory allocation debugging");

	#ifdef INVARIANTS
	@@ -352,7 +352,8 @@

	SYSINIT(uma_startup3, SI_SUB_VM_CONF, SI_ORDER_SECOND, uma_startup3, NULL);

	-SYSCTL_NODE(_vm, OID_AUTO, uma, CTLFLAG_RW, 0, "Universal Memory Allocator");
	+SYSCTL_NODE(_vm, OID_AUTO, uma, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "Universal Memory Allocator");

	SYSCTL_PROC(_vm, OID_AUTO, zone_count, CTLFLAG_RD\|CTLFLAG_MPSAFE\|CTLTYPE_INT,
	0, 0, sysctl_vm_zone_count, "I", "Number of UMA zones");
	@@ -2373,7 +2374,7 @@
	* Basic parameters at the root.
	*/
	zone->uz_oid = SYSCTL_ADD_NODE(NULL, SYSCTL_STATIC_CHILDREN(_vm_uma),
	- OID_AUTO, zone->uz_ctlname, CTLFLAG_RD, NULL, "");
	+ OID_AUTO, zone->uz_ctlname, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	oid = zone->uz_oid;
	SYSCTL_ADD_U32(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
	"size", CTLFLAG_RD, &zone->uz_size, 0, "Allocation size");
	@@ -2396,7 +2397,7 @@
	else
	domains = 1;
	oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(zone->uz_oid), OID_AUTO,
	- "keg", CTLFLAG_RD, NULL, "");
	+ "keg", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	keg = zone->uz_keg;
	if ((zone->uz_flags & UMA_ZFLAG_CACHE) == 0) {
	SYSCTL_ADD_CONST_STRING(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
	@@ -2418,12 +2419,12 @@
	keg, 0, sysctl_handle_uma_slab_efficiency, "I",
	"Slab utilization (100 - internal fragmentation %)");
	domainoid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(oid),
	- OID_AUTO, "domain", CTLFLAG_RD, NULL, "");
	+ OID_AUTO, "domain", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	for (i = 0; i < domains; i++) {
	dom = &keg->uk_domain[i];
	oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(domainoid),
	- OID_AUTO, VM_DOMAIN(i)->vmd_name, CTLFLAG_RD,
	- NULL, "");
	+ OID_AUTO, VM_DOMAIN(i)->vmd_name,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	SYSCTL_ADD_U32(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
	"pages", CTLFLAG_RD, &dom->ud_pages, 0,
	"Total pages currently allocated from VM");
	@@ -2439,7 +2440,7 @@
	* Information about zone limits.
	*/
	oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(zone->uz_oid), OID_AUTO,
	- "limit", CTLFLAG_RD, NULL, "");
	+ "limit", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	SYSCTL_ADD_PROC(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
	"items", CTLFLAG_RD \| CTLTYPE_U64 \| CTLFLAG_MPSAFE,
	zone, 0, sysctl_handle_uma_zone_items, "QU",
	@@ -2461,11 +2462,12 @@
	* Per-domain zone information.
	*/
	domainoid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(zone->uz_oid),
	- OID_AUTO, "domain", CTLFLAG_RD, NULL, "");
	+ OID_AUTO, "domain", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	for (i = 0; i < domains; i++) {
	zdom = ZDOM_GET(zone, i);
	oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(domainoid),
	- OID_AUTO, VM_DOMAIN(i)->vmd_name, CTLFLAG_RD, NULL, "");
	+ OID_AUTO, VM_DOMAIN(i)->vmd_name,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	SYSCTL_ADD_LONG(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
	"nitems", CTLFLAG_RD, &zdom->uzd_nitems,
	"number of items in this domain");
	@@ -2484,7 +2486,7 @@
	* General statistics.
	*/
	oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(zone->uz_oid), OID_AUTO,
	- "stats", CTLFLAG_RD, NULL, "");
	+ "stats", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	SYSCTL_ADD_PROC(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
	"current", CTLFLAG_RD \| CTLTYPE_INT \| CTLFLAG_MPSAFE,
	zone, 1, sysctl_handle_uma_zone_cur, "I",
	Index: head/sys/vm/vm_meter.c
	===================================================================
	--- head/sys/vm/vm_meter.c
	+++ head/sys/vm/vm_meter.c
	@@ -313,12 +313,14 @@
	SYSCTL_PROC(_vm, VM_TOTAL, vmtotal, CTLTYPE_OPAQUE \| CTLFLAG_RD \|
	CTLFLAG_MPSAFE, NULL, 0, vmtotal, "S,vmtotal",
	"System virtual memory statistics");
	-SYSCTL_NODE(_vm, OID_AUTO, stats, CTLFLAG_RW, 0, "VM meter stats");
	-static SYSCTL_NODE(_vm_stats, OID_AUTO, sys, CTLFLAG_RW, 0,
	- "VM meter sys stats");
	-static SYSCTL_NODE(_vm_stats, OID_AUTO, vm, CTLFLAG_RW, 0,
	- "VM meter vm stats");
	-SYSCTL_NODE(_vm_stats, OID_AUTO, misc, CTLFLAG_RW, 0, "VM meter misc stats");
	+SYSCTL_NODE(_vm, OID_AUTO, stats, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "VM meter stats");
	+static SYSCTL_NODE(_vm_stats, OID_AUTO, sys, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "VM meter sys stats");
	+static SYSCTL_NODE(_vm_stats, OID_AUTO, vm, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "VM meter vm stats");
	+SYSCTL_NODE(_vm_stats, OID_AUTO, misc, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "VM meter misc stats");

	static int
	sysctl_handle_vmstat(SYSCTL_HANDLER_ARGS)
	@@ -501,9 +503,9 @@
	struct sysctl_oid *oid;

	vmd->vmd_oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(parent), OID_AUTO,
	- vmd->vmd_name, CTLFLAG_RD, NULL, "");
	+ vmd->vmd_name, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(vmd->vmd_oid), OID_AUTO,
	- "stats", CTLFLAG_RD, NULL, "");
	+ "stats", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	SYSCTL_ADD_UINT(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
	"free_count", CTLFLAG_RD, &vmd->vmd_free_count, 0,
	"Free pages");
	@@ -560,7 +562,7 @@
	int i;

	oid = SYSCTL_ADD_NODE(NULL, SYSCTL_STATIC_CHILDREN(_vm), OID_AUTO,
	- "domain", CTLFLAG_RD, NULL, "");
	+ "domain", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	for (i = 0; i < vm_ndomains; i++)
	vm_domain_stats_init(VM_DOMAIN(i), oid);
	}
	Index: head/sys/vm/vm_object.c
	===================================================================
	--- head/sys/vm/vm_object.c
	+++ head/sys/vm/vm_object.c
	@@ -149,7 +149,7 @@

	struct vm_object kernel_object_store;

	-static SYSCTL_NODE(_vm_stats, OID_AUTO, object, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_vm_stats, OID_AUTO, object, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"VM object stats");

	static counter_u64_t object_collapses = EARLY_COUNTER;
	Index: head/sys/vm/vm_page.c
	===================================================================
	--- head/sys/vm/vm_page.c
	+++ head/sys/vm/vm_page.c
	@@ -127,7 +127,7 @@
	static int vm_severe_waiters;
	static int vm_pageproc_waiters;

	-static SYSCTL_NODE(_vm_stats, OID_AUTO, page, CTLFLAG_RD, 0,
	+static SYSCTL_NODE(_vm_stats, OID_AUTO, page, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	"VM page statistics");

	static counter_u64_t pqstate_commit_retries = EARLY_COUNTER;
	Index: head/sys/vm/vm_pageout.c
	===================================================================
	--- head/sys/vm/vm_pageout.c
	+++ head/sys/vm/vm_pageout.c
	@@ -2133,7 +2133,7 @@
	vmd->vmd_free_target, PIDCTRL_BOUND,
	PIDCTRL_KPD, PIDCTRL_KID, PIDCTRL_KDD);
	oid = SYSCTL_ADD_NODE(NULL, SYSCTL_CHILDREN(vmd->vmd_oid), OID_AUTO,
	- "pidctrl", CTLFLAG_RD, NULL, "");
	+ "pidctrl", CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL, "");
	pidctrl_init_sysctl(&vmd->vmd_pid, SYSCTL_CHILDREN(oid));
	}

	Index: head/sys/vm/vm_phys.c
	===================================================================
	--- head/sys/vm/vm_phys.c
	+++ head/sys/vm/vm_phys.c
	@@ -148,17 +148,23 @@
	#endif

	static int sysctl_vm_phys_free(SYSCTL_HANDLER_ARGS);
	-SYSCTL_OID(_vm, OID_AUTO, phys_free, CTLTYPE_STRING \| CTLFLAG_RD,
	- NULL, 0, sysctl_vm_phys_free, "A", "Phys Free Info");
	+SYSCTL_OID(_vm, OID_AUTO, phys_free,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ sysctl_vm_phys_free, "A",
	+ "Phys Free Info");

	static int sysctl_vm_phys_segs(SYSCTL_HANDLER_ARGS);
	-SYSCTL_OID(_vm, OID_AUTO, phys_segs, CTLTYPE_STRING \| CTLFLAG_RD,
	- NULL, 0, sysctl_vm_phys_segs, "A", "Phys Seg Info");
	+SYSCTL_OID(_vm, OID_AUTO, phys_segs,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ sysctl_vm_phys_segs, "A",
	+ "Phys Seg Info");

	#ifdef NUMA
	static int sysctl_vm_phys_locality(SYSCTL_HANDLER_ARGS);
	-SYSCTL_OID(_vm, OID_AUTO, phys_locality, CTLTYPE_STRING \| CTLFLAG_RD,
	- NULL, 0, sysctl_vm_phys_locality, "A", "Phys Locality Info");
	+SYSCTL_OID(_vm, OID_AUTO, phys_locality,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ sysctl_vm_phys_locality, "A",
	+ "Phys Locality Info");
	#endif

	SYSCTL_INT(_vm, OID_AUTO, ndomains, CTLFLAG_RD,
	Index: head/sys/vm/vm_reserv.c
	===================================================================
	--- head/sys/vm/vm_reserv.c
	+++ head/sys/vm/vm_reserv.c
	@@ -261,7 +261,8 @@
	#define vm_reserv_domain_scan_lock(d) mtx_lock(&vm_rvd[(d)].marker.lock)
	#define vm_reserv_domain_scan_unlock(d) mtx_unlock(&vm_rvd[(d)].marker.lock)

	-static SYSCTL_NODE(_vm, OID_AUTO, reserv, CTLFLAG_RD, 0, "Reservation Info");
	+static SYSCTL_NODE(_vm, OID_AUTO, reserv, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Reservation Info");

	static counter_u64_t vm_reserv_broken = EARLY_COUNTER;
	SYSCTL_COUNTER_U64(_vm_reserv, OID_AUTO, broken, CTLFLAG_RD,
	@@ -278,8 +279,10 @@

	static int sysctl_vm_reserv_partpopq(SYSCTL_HANDLER_ARGS);

	-SYSCTL_OID(_vm_reserv, OID_AUTO, partpopq, CTLTYPE_STRING \| CTLFLAG_RD, NULL, 0,
	- sysctl_vm_reserv_partpopq, "A", "Partially populated reservation queues");
	+SYSCTL_OID(_vm_reserv, OID_AUTO, partpopq,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT, NULL, 0,
	+ sysctl_vm_reserv_partpopq, "A",
	+ "Partially populated reservation queues");

	static counter_u64_t vm_reserv_reclaimed = EARLY_COUNTER;
	SYSCTL_COUNTER_U64(_vm_reserv, OID_AUTO, reclaimed, CTLFLAG_RD,
	Index: head/sys/x86/bios/vpd.c
	===================================================================
	--- head/sys/x86/bios/vpd.c
	+++ head/sys/x86/bios/vpd.c
	@@ -105,14 +105,29 @@

	static int vpd_cksum (struct vpd *);

	-static SYSCTL_NODE(_hw, OID_AUTO, vpd, CTLFLAG_RD, NULL, NULL);
	-static SYSCTL_NODE(_hw_vpd, OID_AUTO, machine, CTLFLAG_RD, NULL, NULL);
	-static SYSCTL_NODE(_hw_vpd_machine, OID_AUTO, type, CTLFLAG_RD, NULL, NULL);
	-static SYSCTL_NODE(_hw_vpd_machine, OID_AUTO, model, CTLFLAG_RD, NULL, NULL);
	-static SYSCTL_NODE(_hw_vpd, OID_AUTO, build_id, CTLFLAG_RD, NULL, NULL);
	-static SYSCTL_NODE(_hw_vpd, OID_AUTO, serial, CTLFLAG_RD, NULL, NULL);
	-static SYSCTL_NODE(_hw_vpd_serial, OID_AUTO, box, CTLFLAG_RD, NULL, NULL);
	-static SYSCTL_NODE(_hw_vpd_serial, OID_AUTO, planar, CTLFLAG_RD, NULL, NULL);
	+static SYSCTL_NODE(_hw, OID_AUTO, vpd, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ NULL);
	+static SYSCTL_NODE(_hw_vpd, OID_AUTO, machine,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ NULL);
	+static SYSCTL_NODE(_hw_vpd_machine, OID_AUTO, type,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ NULL);
	+static SYSCTL_NODE(_hw_vpd_machine, OID_AUTO, model,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ NULL);
	+static SYSCTL_NODE(_hw_vpd, OID_AUTO, build_id,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ NULL);
	+static SYSCTL_NODE(_hw_vpd, OID_AUTO, serial,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ NULL);
	+static SYSCTL_NODE(_hw_vpd_serial, OID_AUTO, box,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ NULL);
	+static SYSCTL_NODE(_hw_vpd_serial, OID_AUTO, planar,
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ NULL);

	static void
	vpd_identify (driver_t *driver, device_t parent)
	Index: head/sys/x86/cpufreq/hwpstate_intel.c
	===================================================================
	--- head/sys/x86/cpufreq/hwpstate_intel.c
	+++ head/sys/x86/cpufreq/hwpstate_intel.c
	@@ -505,12 +505,12 @@

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_STATIC_CHILDREN(_debug), OID_AUTO, device_get_nameunit(dev),
	- CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_SKIP,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_SKIP \| CTLFLAG_NEEDGIANT,
	sc, 0, intel_hwp_dump_sysctl_handler, "A", "");

	SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
	SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
	- "epp", CTLTYPE_INT \| CTLFLAG_RWTUN, dev, 0,
	+ "epp", CTLTYPE_INT \| CTLFLAG_RWTUN \| CTLFLAG_NEEDGIANT, dev, 0,
	sysctl_epp_select, "I",
	"Efficiency/Performance Preference "
	"(range from 0, most performant, through 100, most efficient)");
	Index: head/sys/x86/iommu/intel_utils.c
	===================================================================
	--- head/sys/x86/iommu/intel_utils.c
	+++ head/sys/x86/iommu/intel_utils.c
	@@ -654,7 +654,8 @@
	return (error);
	}

	-static SYSCTL_NODE(_hw, OID_AUTO, dmar, CTLFLAG_RD, NULL, "");
	+static SYSCTL_NODE(_hw, OID_AUTO, dmar, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	+ "");
	SYSCTL_INT(_hw_dmar, OID_AUTO, tbl_pagecnt, CTLFLAG_RD,
	&dmar_tbl_pagecnt, 0,
	"Count of pages used for DMAR pagetables");
	Index: head/sys/x86/isa/clock.c
	===================================================================
	--- head/sys/x86/isa/clock.c
	+++ head/sys/x86/isa/clock.c
	@@ -473,7 +473,8 @@
	return (error);
	}

	-SYSCTL_PROC(_machdep, OID_AUTO, i8254_freq, CTLTYPE_INT \| CTLFLAG_RW,
	+SYSCTL_PROC(_machdep, OID_AUTO, i8254_freq,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	0, sizeof(u_int), sysctl_machdep_i8254_freq, "IU",
	"i8254 timer frequency");

	Index: head/sys/x86/x86/busdma_bounce.c
	===================================================================
	--- head/sys/x86/x86/busdma_bounce.c
	+++ head/sys/x86/x86/busdma_bounce.c
	@@ -114,7 +114,8 @@
	static int busdma_zonecount;
	static STAILQ_HEAD(, bounce_zone) bounce_zone_list;

	-static SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD, 0, "Busdma parameters");
	+static SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "Busdma parameters");
	SYSCTL_INT(_hw_busdma, OID_AUTO, total_bpages, CTLFLAG_RD, &total_bpages, 0,
	"Total bounce pages");

	@@ -1125,7 +1126,7 @@
	sysctl_ctx_init(&bz->sysctl_tree);
	bz->sysctl_tree_top = SYSCTL_ADD_NODE(&bz->sysctl_tree,
	SYSCTL_STATIC_CHILDREN(_hw_busdma), OID_AUTO, bz->zoneid,
	- CTLFLAG_RD, 0, "");
	+ CTLFLAG_RD \| CTLFLAG_MPSAFE, 0, "");
	if (bz->sysctl_tree_top == NULL) {
	sysctl_ctx_free(&bz->sysctl_tree);
	return (0); /* XXX error code? */
	Index: head/sys/x86/x86/cpu_machdep.c
	===================================================================
	--- head/sys/x86/x86/cpu_machdep.c
	+++ head/sys/x86/x86/cpu_machdep.c
	@@ -741,8 +741,10 @@
	return (error);
	}

	-SYSCTL_PROC(_machdep, OID_AUTO, idle_available, CTLTYPE_STRING \| CTLFLAG_RD,
	- 0, 0, idle_sysctl_available, "A", "list of available idle functions");
	+SYSCTL_PROC(_machdep, OID_AUTO, idle_available,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_NEEDGIANT,
	+ 0, 0, idle_sysctl_available, "A",
	+ "list of available idle functions");

	static bool
	cpu_idle_selector(const char *new_idle_name)
	@@ -786,8 +788,10 @@
	return (cpu_idle_selector(buf) ? 0 : EINVAL);
	}

	-SYSCTL_PROC(_machdep, OID_AUTO, idle, CTLTYPE_STRING \| CTLFLAG_RW, 0, 0,
	- cpu_idle_sysctl, "A", "currently selected idle function");
	+SYSCTL_PROC(_machdep, OID_AUTO, idle,
	+ CTLTYPE_STRING \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ 0, 0, cpu_idle_sysctl, "A",
	+ "currently selected idle function");

	static void
	cpu_idle_tun(void *unused __unused)
	@@ -878,7 +882,8 @@
	SYSCTL_INT(_hw, OID_AUTO, ibrs_active, CTLFLAG_RD, &hw_ibrs_active, 0,
	"Indirect Branch Restricted Speculation active");

	-SYSCTL_NODE(_machdep_mitigations, OID_AUTO, ibrs, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_machdep_mitigations, OID_AUTO, ibrs,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Indirect Branch Restricted Speculation active");

	SYSCTL_INT(_machdep_mitigations_ibrs, OID_AUTO, active, CTLFLAG_RD,
	@@ -929,7 +934,8 @@
	&hw_ssb_active, 0,
	"Speculative Store Bypass Disable active");

	-SYSCTL_NODE(_machdep_mitigations, OID_AUTO, ssb, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_machdep_mitigations, OID_AUTO, ssb,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Speculative Store Bypass Disable active");

	SYSCTL_INT(_machdep_mitigations_ssb, OID_AUTO, active, CTLFLAG_RD,
	@@ -1042,7 +1048,8 @@
	sysctl_hw_mds_disable_state_handler, "A",
	"Microarchitectural Data Sampling Mitigation state");

	-SYSCTL_NODE(_machdep_mitigations, OID_AUTO, mds, CTLFLAG_RW, 0,
	+SYSCTL_NODE(_machdep_mitigations, OID_AUTO, mds,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	"Microarchitectural Data Sampling Mitigation state");

	SYSCTL_PROC(_machdep_mitigations_mds, OID_AUTO, state,
	@@ -1325,8 +1332,9 @@
	}
	SYSINIT(taa_recalc, SI_SUB_SMP, SI_ORDER_ANY, taa_recalculate_boot, NULL);

	-SYSCTL_NODE(_machdep_mitigations, OID_AUTO, taa, CTLFLAG_RW, 0,
	- "TSX Asynchronous Abort Mitigation");
	+SYSCTL_NODE(_machdep_mitigations, OID_AUTO, taa,
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "TSX Asynchronous Abort Mitigation");

	static int
	sysctl_taa_handler(SYSCTL_HANDLER_ARGS)
	Index: head/sys/x86/x86/intr_machdep.c
	===================================================================
	--- head/sys/x86/x86/intr_machdep.c
	+++ head/sys/x86/x86/intr_machdep.c
	@@ -750,8 +750,10 @@
	sbuf_delete(&sbuf);
	return (error);
	}
	-SYSCTL_PROC(_hw, OID_AUTO, intrs, CTLTYPE_STRING \| CTLFLAG_RD,
	- 0, 0, sysctl_hw_intrs, "A", "interrupt:number @cpu: count");
	+SYSCTL_PROC(_hw, OID_AUTO, intrs,
	+ CTLTYPE_STRING \| CTLFLAG_RD \| CTLFLAG_MPSAFE,
	+ 0, 0, sysctl_hw_intrs, "A",
	+ "interrupt:number @cpu: count");

	/*
	* Compare two, possibly NULL, entries in the interrupt source array
	Index: head/sys/x86/x86/local_apic.c
	===================================================================
	--- head/sys/x86/x86/local_apic.c
	+++ head/sys/x86/x86/local_apic.c
	@@ -204,7 +204,8 @@
	#endif
	unsigned int max_apic_id;

	-SYSCTL_NODE(_hw, OID_AUTO, apic, CTLFLAG_RD, 0, "APIC options");
	+SYSCTL_NODE(_hw, OID_AUTO, apic, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
	+ "APIC options");
	SYSCTL_INT(_hw_apic, OID_AUTO, x2apic_mode, CTLFLAG_RD, &x2apic_mode, 0, "");
	SYSCTL_INT(_hw_apic, OID_AUTO, eoi_suppression, CTLFLAG_RD,
	&lapic_eoi_suppression, 0, "");
	Index: head/sys/x86/x86/mca.c
	===================================================================
	--- head/sys/x86/x86/mca.c
	+++ head/sys/x86/x86/mca.c
	@@ -102,7 +102,7 @@
	static int mca_banks; /* Number of per-CPU register banks. */
	static int mca_maxcount = -1; /* Limit on records stored. (-1 = unlimited) */

	-static SYSCTL_NODE(_hw, OID_AUTO, mca, CTLFLAG_RD, NULL,
	+static SYSCTL_NODE(_hw, OID_AUTO, mca, CTLFLAG_RD \| CTLFLAG_MPSAFE, NULL,
	"Machine Check Architecture");

	static int mca_enabled = 1;
	@@ -1041,7 +1041,8 @@
	0, sysctl_positive_int, "I",
	"Periodic interval in seconds to scan for machine checks");
	SYSCTL_ADD_NODE(NULL, SYSCTL_STATIC_CHILDREN(_hw_mca), OID_AUTO,
	- "records", CTLFLAG_RD, sysctl_mca_records, "Machine check records");
	+ "records", CTLFLAG_RD \| CTLFLAG_MPSAFE, sysctl_mca_records,
	+ "Machine check records");
	SYSCTL_ADD_PROC(NULL, SYSCTL_STATIC_CHILDREN(_hw_mca), OID_AUTO,
	"force_scan", CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL, 0,
	sysctl_mca_scan, "I", "Force an immediate scan for machine checks");
	Index: head/sys/x86/x86/mp_watchdog.c
	===================================================================
	--- head/sys/x86/x86/mp_watchdog.c
	+++ head/sys/x86/x86/mp_watchdog.c
	@@ -149,8 +149,10 @@
	watchdog_change(temp);
	return (0);
	}
	-SYSCTL_PROC(_debug, OID_AUTO, watchdog, CTLTYPE_INT\|CTLFLAG_RW, 0, 0,
	- sysctl_watchdog, "I", "");
	+SYSCTL_PROC(_debug, OID_AUTO, watchdog,
	+ CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_watchdog, "I",
	+ "");

	/*
	* Drop into the debugger by sending an IPI NMI to the boot processor.
	Index: head/sys/x86/x86/mp_x86.c
	===================================================================
	--- head/sys/x86/x86/mp_x86.c
	+++ head/sys/x86/x86/mp_x86.c
	@@ -1150,7 +1150,8 @@
	u_int xhits_gbl[MAXCPU];
	u_int xhits_pg[MAXCPU];
	u_int xhits_rng[MAXCPU];
	-static SYSCTL_NODE(_debug, OID_AUTO, xhits, CTLFLAG_RW, 0, "");
	+static SYSCTL_NODE(_debug, OID_AUTO, xhits, CTLFLAG_RW \| CTLFLAG_MPSAFE, 0,
	+ "");
	SYSCTL_OPAQUE(_debug_xhits, OID_AUTO, global, CTLFLAG_RW, &xhits_gbl,
	sizeof(xhits_gbl), "IU", "");
	SYSCTL_OPAQUE(_debug_xhits, OID_AUTO, page, CTLFLAG_RW, &xhits_pg,
	Index: head/sys/x86/x86/tsc.c
	===================================================================
	--- head/sys/x86/x86/tsc.c
	+++ head/sys/x86/x86/tsc.c
	@@ -754,8 +754,10 @@
	return (error);
	}

	-SYSCTL_PROC(_machdep, OID_AUTO, tsc_freq, CTLTYPE_U64 \| CTLFLAG_RW,
	- 0, 0, sysctl_machdep_tsc_freq, "QU", "Time Stamp Counter frequency");
	+SYSCTL_PROC(_machdep, OID_AUTO, tsc_freq,
	+ CTLTYPE_U64 \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	+ 0, 0, sysctl_machdep_tsc_freq, "QU",
	+ "Time Stamp Counter frequency");

	static u_int
	tsc_get_timecount(struct timecounter *tc __unused)

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