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authorTetsuo Handa <[email protected]>2015-11-05 18:47:54 -0800
committerLinus Torvalds <[email protected]>2015-11-05 19:34:48 -0800
commit840807a8f40bb25a8df5b6412bba6bc156643be5 (patch)
tree51410f5a9d55dd74f9c8c33bc2af9ab3010f6a8b
parent880b768937e90c433c0c8254a22b1eb63df005a4 (diff)
mm/oom_kill.c: suppress unnecessary "sharing same memory" message
oom_kill_process() sends SIGKILL to other thread groups sharing victim's mm. But printing "Kill process %d (%s) sharing same memory\n" lines makes no sense if they already have pending SIGKILL. This patch reduces the "Kill process" lines by printing that line with info level only if SIGKILL is not pending. Signed-off-by: Tetsuo Handa <[email protected]> Acked-by: Michal Hocko <[email protected]> Cc: David Rientjes <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
-rw-r--r--mm/oom_kill.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 5ba743aaba87..c170d9f0a158 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -583,9 +583,11 @@ void oom_kill_process(struct oom_control *oc, struct task_struct *p,
!(p->flags & PF_KTHREAD)) {
if (p->signal->oom_score_adj == OOM_SCORE_ADJ_MIN)
continue;
+ if (fatal_signal_pending(p))
+ continue;
task_lock(p); /* Protect ->comm from prctl() */
- pr_err("Kill process %d (%s) sharing same memory\n",
+ pr_info("Kill process %d (%s) sharing same memory\n",
task_pid_nr(p), p->comm);
task_unlock(p);
do_send_sig_info(SIGKILL, SEND_SIG_FORCED, p, true);