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authorRoman Gushchin <guro@fb.com>2018-06-14 15:28:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-15 07:55:25 +0900
commitfe6bdfc8e1e131720abbe77a2eb990c94c9024cb (patch)
treea5621677932889c947a8a2c3543703a440c00f93 /mm/oom_kill.c
parentd7dc899abefb4412388a5d3ec690070197d07d20 (diff)
mm: fix oom_kill event handling
Commit e27be240df53 ("mm: memcg: make sure memory.events is uptodate when waking pollers") converted most of memcg event counters to per-memcg atomics, which made them less confusing for a user. The "oom_kill" counter remained untouched, so now it behaves differently than other counters (including "oom"). This adds nothing but confusion. Let's fix this by adding the MEMCG_OOM_KILL event, and follow the MEMCG_OOM approach. This also removes a hack from count_memcg_event_mm(), introduced earlier specially for the OOM_KILL counter. [akpm@linux-foundation.org: fix for droppage of memcg-replace-mm-owner-with-mm-memcg.patch] Link: http://lkml.kernel.org/r/20180508124637.29984-1-guro@fb.com Signed-off-by: Roman Gushchin <guro@fb.com> Acked-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/oom_kill.c')
-rw-r--r--mm/oom_kill.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 6694348b27e9..84081e77bc51 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -913,7 +913,7 @@ static void oom_kill_process(struct oom_control *oc, const char *message)
/* Raise event before sending signal: task reaper must see this */
count_vm_event(OOM_KILL);
- count_memcg_event_mm(mm, OOM_KILL);
+ memcg_memory_event_mm(mm, MEMCG_OOM_KILL);
/*
* We should send SIGKILL before granting access to memory reserves