diff options
| author | Shakeel Butt <[email protected]> | 2019-07-11 20:55:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2019-07-12 11:05:43 -0700 |
| commit | 38d384932ed1b58f0ed8dd17c66e0cd89acb354a (patch) | |
| tree | 5c01cc4955e93a5649cb732922e93478703a9529 | |
| parent | aeb309b81c6bada783c3695528a3e10748e97285 (diff) | |
memcg, oom: no oom-kill for __GFP_RETRY_MAYFAIL
The documentation of __GFP_RETRY_MAYFAIL clearly mentioned that the OOM
killer will not be triggered and indeed the page alloc does not invoke OOM
killer for such allocations. However we do trigger memcg OOM killer for
__GFP_RETRY_MAYFAIL. Fix that. This flag will used later to not trigger
oom-killer in the charging path for fanotify and inotify event
allocations.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Shakeel Butt <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Cc: Amir Goldstein <[email protected]>
Cc: Jan Kara <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Roman Gushchin <[email protected]>
Cc: Vladimir Davydov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | mm/memcontrol.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 591eafafbd8c..2ad94d0ce22f 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2279,7 +2279,6 @@ static int try_charge(struct mem_cgroup *memcg, gfp_t gfp_mask, unsigned long nr_reclaimed; bool may_swap = true; bool drained = false; - bool oomed = false; enum oom_status oom_status; if (mem_cgroup_is_root(memcg)) @@ -2366,7 +2365,7 @@ retry: if (nr_retries--) goto retry; - if (gfp_mask & __GFP_RETRY_MAYFAIL && oomed) + if (gfp_mask & __GFP_RETRY_MAYFAIL) goto nomem; if (gfp_mask & __GFP_NOFAIL) @@ -2385,7 +2384,6 @@ retry: switch (oom_status) { case OOM_SUCCESS: nr_retries = MEM_CGROUP_RECLAIM_RETRIES; - oomed = true; goto retry; case OOM_FAILED: goto force; |