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mm, oom_adj: don't loop through tasks in __set_oom_adj when not necessary
[sfrench/cifs-2.6.git]
/
mm
/
oom_kill.c
diff --git
a/mm/oom_kill.c
b/mm/oom_kill.c
index e90f25d6385d7f2a9ca2546a5db78227bf444579..8b84661a641090aa4993bb69710e69643382873b 100644
(file)
--- a/
mm/oom_kill.c
+++ b/
mm/oom_kill.c
@@
-64,6
+64,8
@@
int sysctl_oom_dump_tasks = 1;
* and mark_oom_victim
*/
DEFINE_MUTEX(oom_lock);
+/* Serializes oom_score_adj and oom_score_adj_min updates */
+DEFINE_MUTEX(oom_adj_mutex);
static inline bool is_memcg_oom(struct oom_control *oc)
{