diff options
| author |   Tejun Heo <tj@kernel.org> | 2015-06-24 16:58:21 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-24 17:49:45 -0700 |
| commit | f4b90b70b7a4f5c29c442399ffd531332356e1f5 (patch) | |
| tree | 30a0b611127c4219bd57622e1d6f32600492459e /mm | |
| parent | frontswap: allow multiple backends (diff) | |
| download | linux-dev-f4b90b70b7a4f5c29c442399ffd531332356e1f5.tar.xz linux-dev-f4b90b70b7a4f5c29c442399ffd531332356e1f5.zip | |
memcg: remove unused mem_cgroup->oom_wakeups
Since commit 4942642080ea ("mm: memcg: handle non-error OOM situations
more gracefully"), nobody uses mem_cgroup->oom_wakeups. Remove it.
While at it, also fold memcg_wakeup_oom() into memcg_oom_recover() which
is its only user. This cleanup was suggested by Michal.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memcontrol.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 8da44a083397..6a5f5d59f7d7 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -287,7 +287,6 @@ struct mem_cgroup { bool oom_lock; atomic_t under_oom; - atomic_t oom_wakeups; int swappiness; /* OOM-Killer disable */ @@ -1850,17 +1849,10 @@ static int memcg_oom_wake_function(wait_queue_t *wait, return autoremove_wake_function(wait, mode, sync, arg); } -static void memcg_wakeup_oom(struct mem_cgroup *memcg) -{ - atomic_inc(&memcg->oom_wakeups); - /* for filtering, pass "memcg" as argument. */ - __wake_up(&memcg_oom_waitq, TASK_NORMAL, 0, memcg); -} - static void memcg_oom_recover(struct mem_cgroup *memcg) { if (memcg && atomic_read(&memcg->under_oom)) - memcg_wakeup_oom(memcg); + __wake_up(&memcg_oom_waitq, TASK_NORMAL, 0, memcg); } static void mem_cgroup_oom(struct mem_cgroup *memcg, gfp_t mask, int order) |