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authorTakashi Iwai <tiwai@suse.de>2014-10-27 14:11:07 +0100
committerTakashi Iwai <tiwai@suse.de>2014-10-27 14:11:07 +0100
commit85c24cd8d3676cbae9e8809e894e68025c6d497e (patch)
tree024c4b655c1a8e6943ed8e75b64be38980508cfe /mm/oom_kill.c
parent49d776ffb50f2e428aafb6a6576e58e80f1e886c (diff)
parentd1d0b6b668818571122d30d68a0b3f768bd83a52 (diff)
Merge branch 'for-linus' into for-next
Merged upstream branch to make further fireworks development easier (and avoid conflicts earlier). Conflicts: sound/firewire/bebob/bebob_focusrite.c
Diffstat (limited to 'mm/oom_kill.c')
-rw-r--r--mm/oom_kill.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index bbf405a3a18f..5340f6b91312 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -404,6 +404,23 @@ static void dump_header(struct task_struct *p, gfp_t gfp_mask, int order,
dump_tasks(memcg, nodemask);
}
+/*
+ * Number of OOM killer invocations (including memcg OOM killer).
+ * Primarily used by PM freezer to check for potential races with
+ * OOM killed frozen task.
+ */
+static atomic_t oom_kills = ATOMIC_INIT(0);
+
+int oom_kills_count(void)
+{
+ return atomic_read(&oom_kills);
+}
+
+void note_oom_kill(void)
+{
+ atomic_inc(&oom_kills);
+}
+
#define K(x) ((x) << (PAGE_SHIFT-10))
/*
* Must be called while holding a reference to p, which will be released upon