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| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2017-11-15 17:39:10 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-15 18:21:07 -0800 |
| commit | c50842c8e1cddcdb69d3ece4f4df005a0e6c5ceb (patch) | |
| tree | 3624b44f543ac020d49eb9e1b768049fe3066da8 | |
| parent | e492080e640c2d1235ddf3441cae634cfffef7e1 (diff) | |
| download | linux-c50842c8e1cddcdb69d3ece4f4df005a0e6c5ceb.tar.bz2 | |
mm,oom_reaper: remove pointless kthread_run() error check
Since oom_init() is called before userspace processes start, memory
allocation failure for creating the OOM reaper kernel thread will let
the OOM killer call panic() rather than wake up the OOM reaper.
Link: http://lkml.kernel.org/r/1510137800-4602-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/oom_kill.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 26add8a0d1f7..a501a0a1f0f8 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -640,9 +640,6 @@ static int oom_reaper(void *unused) static void wake_oom_reaper(struct task_struct *tsk) { - if (!oom_reaper_th) - return; - /* tsk is already queued? */ if (tsk == oom_reaper_list || tsk->oom_reaper_list) return; @@ -660,11 +657,6 @@ static void wake_oom_reaper(struct task_struct *tsk) static int __init oom_init(void) { oom_reaper_th = kthread_run(oom_reaper, NULL, "oom_reaper"); - if (IS_ERR(oom_reaper_th)) { - pr_err("Unable to start OOM reaper %ld. Continuing regardless\n", - PTR_ERR(oom_reaper_th)); - oom_reaper_th = NULL; - } return 0; } subsys_initcall(oom_init) |