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Differential D23759 Diff 69075 head/sys/kern/kern_umtx.c

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head/sys/kern/kern_umtx.c

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int umtx_shm_vnobj_persistent = 0; int umtx_shm_vnobj_persistent = 0;
SYSCTL_INT(_kern_ipc, OID_AUTO, umtx_vnode_persistent, CTLFLAG_RWTUN, SYSCTL_INT(_kern_ipc, OID_AUTO, umtx_vnode_persistent, CTLFLAG_RWTUN,
&umtx_shm_vnobj_persistent, 0, &umtx_shm_vnobj_persistent, 0,
"False forces destruction of umtx attached to file, on last close"); "False forces destruction of umtx attached to file, on last close");
static int umtx_max_rb = 1000; static int umtx_max_rb = 1000;
SYSCTL_INT(_kern_ipc, OID_AUTO, umtx_max_robust, CTLFLAG_RWTUN, SYSCTL_INT(_kern_ipc, OID_AUTO, umtx_max_robust, CTLFLAG_RWTUN,
&umtx_max_rb, 0, &umtx_max_rb, 0,
""); "Maximum number of robust mutexes allowed for each thread");
static uma_zone_t umtx_pi_zone; static uma_zone_t umtx_pi_zone;
static struct umtxq_chain umtxq_chains[2][UMTX_CHAINS]; static struct umtxq_chain umtxq_chains[2][UMTX_CHAINS];
static MALLOC_DEFINE(M_UMTX, "umtx", "UMTX queue memory"); static MALLOC_DEFINE(M_UMTX, "umtx", "UMTX queue memory");
static int umtx_pi_allocated; static int umtx_pi_allocated;
static SYSCTL_NODE(_debug, OID_AUTO, umtx, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, static SYSCTL_NODE(_debug, OID_AUTO, umtx, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
"umtx debug"); "umtx debug");
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