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authorMel Gorman <mgorman@suse.de>2011-11-01 01:09:33 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-01 01:30:50 +0100
commite0c23279c9f800c403f37511484d9014ac83adec (patch)
tree9dcf058d3d1c691328ea5839dfe9c340e47ee3fa /net/nfc
parentvmscan: limit direct reclaim for higher order allocations (diff)
downloadlinux-e0c23279c9f800c403f37511484d9014ac83adec.tar.xz
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 'net/nfc')
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