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authorMel Gorman <mgorman@suse.de>2011-07-25 17:12:30 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2011-10-03 11:40:04 -0700
commit66d52cb7c42a5df2a6aded5f29dba98ac2882064 (patch)
tree6d154119840cec22ecaeda4cc76a5d9d412d5e09 /REPORTING-BUGS
parent42274b5f8129467095e8b907b5bc9536caf30fa8 (diff)
mm: page allocator: reconsider zones for allocation after direct reclaim
commit 76d3fbf8fbf6cc78ceb63549e0e0c5bc8a88f838 upstream. With zone_reclaim_mode enabled, it's possible for zones to be considered full in the zonelist_cache so they are skipped in the future. If the process enters direct reclaim, the ZLC may still consider zones to be full even after reclaiming pages. Reconsider all zones for allocation if direct reclaim returns successfully. Signed-off-by: Mel Gorman <mgorman@suse.de> Cc: Minchan Kim <minchan.kim@gmail.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Christoph Lameter <cl@linux.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Stefan Priebe <s.priebe@profihost.ag> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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