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authorTetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>2015-11-06 05:47:54 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-06 06:34:48 +0300
commit840807a8f40bb25a8df5b6412bba6bc156643be5 (patch)
tree51410f5a9d55dd74f9c8c33bc2af9ab3010f6a8b /mm/oom_kill.c
parent880b768937e90c433c0c8254a22b1eb63df005a4 (diff)
downloadlinux-840807a8f40bb25a8df5b6412bba6bc156643be5.tar.xz
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 <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Michal Hocko <mhocko@suse.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/oom_kill.c')
-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);