D12163.diff
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	Index: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
	===================================================================
	--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
	+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
	@@ -4199,8 +4199,6 @@
	}
	}

	-static long needfree = 0;
	-
	typedef enum free_memory_reason_t {
	FMR_UNKNOWN,
	FMR_NEEDFREE,
	@@ -4238,14 +4236,6 @@
	free_memory_reason_t r = FMR_UNKNOWN;

	#ifdef _KERNEL
	- if (needfree > 0) {
	- n = PAGESIZE * (-needfree);
	- if (n < lowest) {
	- lowest = n;
	- r = FMR_NEEDFREE;
	- }
	- }
	-
	/*
	* Cooperate with pagedaemon when it's time for it to scan
	* and reclaim some pages.
	@@ -4510,9 +4500,6 @@
	int64_t to_free =
	(arc_c >> arc_shrink_shift) - free_memory;
	if (to_free > 0) {
	-#ifdef _KERNEL
	- to_free = MAX(to_free, ptob(needfree));
	-#endif
	arc_shrink(to_free);
	}
	} else if (free_memory < arc_c >> arc_no_grow_shift) {
	@@ -4533,9 +4520,6 @@
	* infinite loop.
	*/
	if (arc_size <= arc_c \|\| evicted == 0) {
	-#ifdef _KERNEL
	- needfree = 0;
	-#endif
	/*
	* We're either no longer overflowing, or we
	* can't evict anything more, so we should wake
	@@ -6310,9 +6294,7 @@
	{

	mutex_enter(&arc_reclaim_lock);
	- /* XXX: Memory deficit should be passed as argument. */
	- needfree = btoc(arc_c >> arc_shrink_shift);
	- DTRACE_PROBE(arc__needfree);
	+ DTRACE_PROBE1(arc__needfree, int64_t, ((int64_t)freemem - zfs_arc_free_target) * PAGESIZE);
	cv_signal(&arc_reclaim_thread_cv);

	/*