mm/compaction.c: avoid double mem_cgroup_del_lru()
authorMinchan Kim <minchan.kim@gmail.com>
Wed, 22 Dec 2010 01:24:16 +0000 (17:24 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 23 Dec 2010 03:43:33 +0000 (19:43 -0800)
commitdd9e5efe3aa9fc5b1ce484a531ecdba3a7a30bbf
tree2ccf4d51b423706db976c5eab214d0e23195461b
parent90a8a73c06cc32b609a880d48449d7083327e11a
mm/compaction.c: avoid double mem_cgroup_del_lru()

del_page_from_lru_list() already called mem_cgroup_del_lru().  So we must
not call it again.  It adds unnecessary overhead.

It was not a runtime bug because the TestClearPageCgroupAcctLRU() early in
mem_cgroup_del_lru_list() will prevent any double-deletion, etc.

Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/compaction.c