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| author | Mel Gorman | 2011-11-01 01:09:33 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2011-11-01 01:30:50 +0100 |
| commit | e0c23279c9f800c403f37511484d9014ac83adec (patch) | |
| tree | 9dcf058d3d1c691328ea5839dfe9c340e47ee3fa /mm/mlock.c | |
| parent | vmscan: limit direct reclaim for higher order allocations (diff) | |
| download | kernel-qcow2-linux-e0c23279c9f800c403f37511484d9014ac83adec.tar.gz kernel-qcow2-linux-e0c23279c9f800c403f37511484d9014ac83adec.tar.xz kernel-qcow2-linux-e0c23279c9f800c403f37511484d9014ac83adec.zip | |
vmscan: abort reclaim/compaction if compaction can proceed
If compaction can proceed, shrink_zones() stops doing any work but its
callers still call shrink_slab() which raises the priority and potentially
sleeps. This is unnecessary and wasteful so this patch aborts direct
reclaim/compaction entirely if compaction can proceed.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Acked-by: Johannes Weiner <jweiner@redhat.com>
Cc: Josh Boyer <jwboyer@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mlock.c')
0 files changed, 0 insertions, 0 deletions