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authorJiang Liu <jiang.liu@huawei.com>2012-07-31 23:43:32 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2012-08-01 01:42:44 (GMT)
commit340175b7d14d5617559d0c1a54fa0ea204d9edcd (patch)
tree7b2fb51d5bf1e54bf258a058fea347ee2d75ac7b /drivers
parent08dff7b7d629807dbb1f398c68dd9cd58dd657a1 (diff)
downloadlinux-340175b7d14d5617559d0c1a54fa0ea204d9edcd.tar.xz
mm/hotplug: free zone->pageset when a zone becomes empty
When a zone becomes empty after memory offlining, free zone->pageset. Otherwise it will cause memory leak when adding memory to the empty zone again because build_all_zonelists() will allocate zone->pageset for an empty zone. Signed-off-by: Jiang Liu <liuj97@gmail.com> Signed-off-by: Wei Wang <Bessel.Wang@huawei.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Michal Hocko <mhocko@suse.cz> Cc: Minchan Kim <minchan@kernel.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Tony Luck <tony.luck@intel.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: David Rientjes <rientjes@google.com> Cc: Keping Chen <chenkeping@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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