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authorLinus Torvalds <torvalds@linux-foundation.org>2014-07-30 17:16:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-07-30 17:16:36 -0700
commit4d0bd657d77d599307649aa03991b05e3ddef059 (patch)
treea1b028afe393695ea8ccbe4a2ef7742b94d82ef7 /mm/memcontrol.c
parent26bcd8b72563b4c54892c4c2a409f6656fb8ae8b (diff)
parente0198b290dcd8313bdf313a0d083033d5c01d761 (diff)
Merge branch 'akpm' (patches from Andrew Morton)
Merge fixes from Andrew Morton: "10 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: Josh has moved kexec: export free_huge_page to VMCOREINFO mm: fix filemap.c pagecache_get_page() kernel-doc warnings mm: debugfs: move rounddown_pow_of_two() out from do_fault path memcg: oom_notify use-after-free fix hwpoison: call action_result() in failure path of hwpoison_user_mappings() hwpoison: fix hugetlbfs/thp precheck in hwpoison_user_mappings() rapidio/tsi721_dma: fix failure to obtain transaction descriptor mm, thp: do not allow thp faults to avoid cpuset restrictions mm/page-writeback.c: fix divide by zero in bdi_dirty_limits()
Diffstat (limited to 'mm/memcontrol.c')
-rw-r--r--mm/memcontrol.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index a2c7bcb0e6e..1f14a430c65 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5415,8 +5415,12 @@ static int mem_cgroup_oom_notify_cb(struct mem_cgroup *memcg)
{
struct mem_cgroup_eventfd_list *ev;
+ spin_lock(&memcg_oom_lock);
+
list_for_each_entry(ev, &memcg->oom_notify, list)
eventfd_signal(ev->eventfd, 1);
+
+ spin_unlock(&memcg_oom_lock);
return 0;
}