Setting oom_killer_disabled to false is atomic, there is no need for
further synchronization with ongoing allocations trying to OOM-kill.
Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
---
mm/oom_kill.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 2b665da..73763e4 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -488,9 +488,7 @@ bool oom_killer_disable(void)
*/
void oom_killer_enable(void)
{
- down_write(&oom_sem);
oom_killer_disabled = false;
- up_write(&oom_sem);
}
#define K(x) ((x) << (PAGE_SHIFT-10))
--
2.3.4
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