diff options
| author | KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> | 2010-08-09 17:19:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-09 20:45:01 -0700 |
| commit | a96cfd6e9176ad442233001b7d15e9ed42234320 (patch) | |
| tree | 6aa70841f3f2c3ff39a75d0014b9a235810ccd08 /mm/oom_kill.c | |
| parent | 113e27f36dff9895049df324f292474854750d21 (diff) | |
| download | lwn-a96cfd6e9176ad442233001b7d15e9ed42234320.tar.gz lwn-a96cfd6e9176ad442233001b7d15e9ed42234320.zip | |
oom: move OOM_DISABLE check from oom_kill_task to out_of_memory()
Presently if oom_kill_allocating_task is enabled and current have
OOM_DISABLED, following printk in oom_kill_process is called twice.
pr_err("%s: Kill process %d (%s) score %lu or sacrifice child\n",
message, task_pid_nr(p), p->comm, points);
So, OOM_DISABLE check should be more early.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: David Rientjes <rientjes@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Oleg Nesterov <oleg@redhat.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 | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 011181ed41e3..79b34831ad79 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -424,7 +424,7 @@ static void dump_header(struct task_struct *p, gfp_t gfp_mask, int order, static int oom_kill_task(struct task_struct *p) { p = find_lock_task_mm(p); - if (!p || p->signal->oom_adj == OOM_DISABLE) { + if (!p) { task_unlock(p); return 1; } @@ -686,7 +686,8 @@ void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask, read_lock(&tasklist_lock); if (sysctl_oom_kill_allocating_task && - !oom_unkillable_task(current, NULL, nodemask)) { + !oom_unkillable_task(current, NULL, nodemask) && + (current->signal->oom_adj != OOM_DISABLE)) { /* * oom_kill_process() needs tasklist_lock held. If it returns * non-zero, current could not be killed so we must fallback to |