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authorMel Gorman <mel@csn.ul.ie>2010-05-24 14:32:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-25 08:06:59 -0700
commit76ab0f530e4a01d4dc20cdc1d5e87753c579dc18 (patch)
tree8e1566df85e02f67876685c36d217fec4845f79f /mm/page_alloc.c
parent748446bb6b5a9390b546af38ec899c868a9dbcf0 (diff)
downloadlinux-76ab0f530e4a01d4dc20cdc1d5e87753c579dc18.tar.bz2
mm: compaction: add /proc trigger for memory compaction
Add a proc file /proc/sys/vm/compact_memory. When an arbitrary value is written to the file, all zones are compacted. The expected user of such a trigger is a job scheduler that prepares the system before the target application runs. Signed-off-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Rik van Riel <riel@redhat.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Reviewed-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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