From: Michal Hocko <mhocko@xxxxxxxxxx>
Subject: mm/oom_kill.c: fix task_will_free_mem() comment
Attempt to demystify the task_will_free_mem() loop.
Cc: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/oom_kill.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff -puN mm/oom_kill.c~mm-oom_killc-fix-task_will_free_mem-comment mm/oom_kill.c
--- a/mm/oom_kill.c~mm-oom_killc-fix-task_will_free_mem-comment
+++ a/mm/oom_kill.c
@@ -803,8 +803,9 @@ static bool task_will_free_mem(struct ta
return true;
/*
- * This is really pessimistic but we do not have any reliable way
- * to check that external processes share with our mm
+ * Make sure that all tasks which share the mm with the given tasks
+ * are dying as well to make sure that a) nobody pins its mm and
+ * b) the task is also reapable by the oom reaper.
*/
rcu_read_lock();
for_each_process(p) {
_
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
