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authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2010-10-26 14:21:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-26 16:52:07 -0700
commit08fc468f4eaf6683bae5bdb94743a09d8630cb80 (patch)
treea2225421eb8e01a8e9df588f5064be81059af91a /crypto
parent47185052165a4c5de0a461018238375dd982c2ec (diff)
downloadvexpress-lsk-08fc468f4eaf6683bae5bdb94743a09d8630cb80.tar.gz
vmscan: isolate_lru_pages(): stop neighbour search if neighbour cannot be isolated
isolate_lru_pages() does not just isolate LRU tail pages, but also isolates neighbour pages of the eviction page. The neighbour search does not stop even if neighbours cannot be isolated which is excessive as the lumpy reclaim will no longer result in a successful higher order allocation. This patch stops the PFN neighbour pages if an isolation fails and moves on to the next block. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Mel Gorman <mel@csn.ul.ie> Reviewed-by: Wu Fengguang <fengguang.wu@intel.com> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'crypto')
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