svn commit: r288536 - stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs

[Alexander Motin]

Author: mav
Date: Sat Oct  3 07:17:45 2015
New Revision: 288536
URL: https://svnweb.freebsd.org/changeset/base/288536

Log:
  MFC r281109: Add DTrace probe to the new ARC reclaim cause added in r281026.

Modified:
  stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
==============================================================================
--- stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c	Sat Oct  3 06:35:17 2015	(r288535)
+++ stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c	Sat Oct  3 07:17:45 2015	(r288536)
@@ -2674,8 +2674,12 @@ arc_reclaim_needed(void)
 	 * Above limits know nothing about real level of KVA fragmentation.
 	 * Start aggressive reclamation if too little sequential KVA left.
 	 */
-	if (vmem_size(heap_arena, VMEM_MAXFREE) < zfs_max_recordsize)
+	if (vmem_size(heap_arena, VMEM_MAXFREE) < zfs_max_recordsize) {
+		DTRACE_PROBE2(arc__reclaim_maxfree, uint64_t,
+		    vmem_size(heap_arena, VMEM_MAXFREE),
+		    uint64_t, zfs_max_recordsize);
 		return (1);
+	}
 
 #else	/* _KERNEL */
 	if (spa_get_random(100) == 0)