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| author | Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> | 2009-01-07 18:08:28 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-08 08:31:09 -0800 |
| commit | 3bb4edf24b26358eccfc69ac8b9a9c36ccc312da (patch) | |
| tree | 61093878836115496bd52646670d123809e1bc99 | |
| parent | 9836d89191edd4887ed026a9ce53d9dfac62ec1c (diff) | |
| download | linux-3bb4edf24b26358eccfc69ac8b9a9c36ccc312da.tar.gz linux-3bb4edf24b26358eccfc69ac8b9a9c36ccc312da.tar.bz2 linux-3bb4edf24b26358eccfc69ac8b9a9c36ccc312da.zip | |
memcg: don't trigger oom at page migration
I think triggering OOM at mem_cgroup_prepare_migration would be just a bit
overkill. Returning -ENOMEM would be enough for
mem_cgroup_prepare_migration. The caller would handle the case anyway.
Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/memcontrol.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 8d2e5c8a25b1..3ba72e6556cc 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1361,7 +1361,7 @@ int mem_cgroup_prepare_migration(struct page *page, struct mem_cgroup **ptr) unlock_page_cgroup(pc); if (mem) { - ret = mem_cgroup_try_charge(NULL, GFP_KERNEL, &mem); + ret = __mem_cgroup_try_charge(NULL, GFP_KERNEL, &mem, false); css_put(&mem->css); } *ptr = mem; |