svn commit: r213549 - stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs

[Andriy Gapon]

Author: avg
Date: Fri Oct  8 07:33:22 2010
New Revision: 213549
URL: http://svn.freebsd.org/changeset/base/213549

Log:
  MFC r212780: zfs arc_reclaim_needed: more reasonable threshold for
  available pages

Modified:
  stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)
  stable/8/sys/dev/xen/xenpci/   (props changed)

Modified: stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
==============================================================================
--- stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c	Fri Oct  8 07:31:32 2010	(r213548)
+++ stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c	Fri Oct  8 07:33:22 2010	(r213549)
@@ -2161,10 +2161,10 @@ arc_reclaim_needed(void)
 		return (0);
 
 	/*
-	 * If pages are needed or we're within 2048 pages
-	 * of needing to page need to reclaim
+	 * Cooperate with pagedaemon when it's time for it to scan
+	 * and reclaim some pages.
 	 */
-	if (vm_pages_needed || (vm_paging_target() > -2048))
+	if (vm_paging_need())
 		return (1);
 
 #if 0