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| author | David Rientjes <rientjes@google.com> | 2012-08-01 01:43:48 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-08-01 03:42:45 +0200 |
| commit | 876aafbfd9ba5bb352f1b14622c27f3fe9a99013 (patch) | |
| tree | fdd18b6caa0c9baa56b76feb9b05339919f283dd /mm/oom_kill.c | |
| parent | mm, oom: reduce dependency on tasklist_lock (diff) | |
| download | linux-876aafbfd9ba5bb352f1b14622c27f3fe9a99013.tar.xz linux-876aafbfd9ba5bb352f1b14622c27f3fe9a99013.zip | |
mm, memcg: move all oom handling to memcontrol.c
By globally defining check_panic_on_oom(), the memcg oom handler can be
moved entirely to mm/memcontrol.c. This removes the ugly #ifdef in the
oom killer and cleans up the code.
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.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.c | 23 |
1 files changed, 2 insertions, 21 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c index a3a32ae02e9d..198600861638 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -556,8 +556,8 @@ void oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order, /* * Determines whether the kernel must panic because of the panic_on_oom sysctl. */ -static void check_panic_on_oom(enum oom_constraint constraint, gfp_t gfp_mask, - int order, const nodemask_t *nodemask) +void check_panic_on_oom(enum oom_constraint constraint, gfp_t gfp_mask, + int order, const nodemask_t *nodemask) { if (likely(!sysctl_panic_on_oom)) return; @@ -575,25 +575,6 @@ static void check_panic_on_oom(enum oom_constraint constraint, gfp_t gfp_mask, sysctl_panic_on_oom == 2 ? "compulsory" : "system-wide"); } -#ifdef CONFIG_MEMCG -void mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask, - int order) -{ - /* - * If current has a pending SIGKILL, then automatically select it. The - * goal is to allow it to allocate so that it may quickly exit and free - * its memory. - */ - if (fatal_signal_pending(current)) { - set_thread_flag(TIF_MEMDIE); - return; - } - - check_panic_on_oom(CONSTRAINT_MEMCG, gfp_mask, order, NULL); - __mem_cgroup_out_of_memory(memcg, gfp_mask, order); -} -#endif - static BLOCKING_NOTIFIER_HEAD(oom_notify_list); int register_oom_notifier(struct notifier_block *nb) |