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| author | Johannes Weiner <hannes@cmpxchg.org> | 2013-09-12 15:13:42 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-12 15:38:01 -0700 |
| commit | 519e52473ebe9db5cdef44670d5a97f1fd53d721 (patch) | |
| tree | 635fce64ff3658250745b9c8dfebd47e981a5b16 /mm/memcontrol.c | |
| parent | 3a13c4d761b4b979ba8767f42345fed3274991b0 (diff) | |
| download | linux-519e52473ebe9db5cdef44670d5a97f1fd53d721.tar.gz linux-519e52473ebe9db5cdef44670d5a97f1fd53d721.tar.bz2 linux-519e52473ebe9db5cdef44670d5a97f1fd53d721.zip | |
mm: memcg: enable memcg OOM killer only for user faults
System calls and kernel faults (uaccess, gup) can handle an out of memory
situation gracefully and just return -ENOMEM.
Enable the memcg OOM killer only for user faults, where it's really the
only option available.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: azurIt <azurit@pobox.sk>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol.c')
| -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 c4524458b7d0..0980bbf6438d 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2454,7 +2454,7 @@ static int mem_cgroup_do_charge(struct mem_cgroup *memcg, gfp_t gfp_mask, return CHARGE_RETRY; /* If we don't need to call oom-killer at el, return immediately */ - if (!oom_check) + if (!oom_check || !current->memcg_oom.may_oom) return CHARGE_NOMEM; /* check OOM */ if (!mem_cgroup_handle_oom(mem_over_limit, gfp_mask, get_order(csize))) |