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| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2016-10-07 16:59:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-07 18:46:28 -0700 |
| commit | 38531201c12144cd7d96abfdfe7449c2b01375e8 (patch) | |
| tree | 0075124f382060b23ce36dbe96d2a9bfc8be8ad9 | |
| parent | 7d2e7a22cf27e7569e6816ccc05dd74248048b30 (diff) | |
| download | linux-38531201c12144cd7d96abfdfe7449c2b01375e8.tar.bz2 | |
mm, oom: enforce exit_oom_victim on current task
There are no users of exit_oom_victim on !current task anymore so enforce
the API to always work on the current.
Link: http://lkml.kernel.org/r/1472119394-11342-8-git-send-email-mhocko@kernel.org
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Michal Hocko <mhocko@suse.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Vladimir Davydov <vdavydov@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/oom.h | 2 | ||||
| -rw-r--r-- | kernel/exit.c | 2 | ||||
| -rw-r--r-- | mm/oom_kill.c | 5 |
3 files changed, 4 insertions, 5 deletions
diff --git a/include/linux/oom.h b/include/linux/oom.h index 0f1b9da108e4..b4e36e92bc87 100644 --- a/include/linux/oom.h +++ b/include/linux/oom.h @@ -69,7 +69,7 @@ extern unsigned long oom_badness(struct task_struct *p, extern bool out_of_memory(struct oom_control *oc); -extern void exit_oom_victim(struct task_struct *tsk); +extern void exit_oom_victim(void); extern int register_oom_notifier(struct notifier_block *nb); extern int unregister_oom_notifier(struct notifier_block *nb); diff --git a/kernel/exit.c b/kernel/exit.c index 1e1d913914c0..9d68c45ebbe3 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -511,7 +511,7 @@ static void exit_mm(struct task_struct *tsk) mm_update_next_owner(mm); mmput(mm); if (test_thread_flag(TIF_MEMDIE)) - exit_oom_victim(tsk); + exit_oom_victim(); } static struct task_struct *find_alive_thread(struct task_struct *p) diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 895a51fe8e18..3b990544db6d 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -662,10 +662,9 @@ static void mark_oom_victim(struct task_struct *tsk) /** * exit_oom_victim - note the exit of an OOM victim */ -void exit_oom_victim(struct task_struct *tsk) +void exit_oom_victim(void) { - if (!test_and_clear_tsk_thread_flag(tsk, TIF_MEMDIE)) - return; + clear_thread_flag(TIF_MEMDIE); if (!atomic_dec_return(&oom_victims)) wake_up_all(&oom_victims_wait); |