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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2009-10-01 15:44:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-10-01 16:11:13 -0700
commitef8745c1e7fc5413d760b3b958f3fd3a0beaad72 (patch)
treea1f1998dbcf06e84fe3539192e440e9d1bb876f2 /drivers
parent4e649152cbaa1aedd01821d200ab9d597fe469e4 (diff)
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op-kernel-dev-ef8745c1e7fc5413d760b3b958f3fd3a0beaad72.tar.gz
memcg: reduce check for softlimit excess
In charge/uncharge/reclaim path, usage_in_excess is calculated repeatedly and it takes res_counter's spin_lock every time. This patch removes unnecessary calls for res_count_soft_limit_excess. Reviewed-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Paul Menage <menage@google.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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