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authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2010-08-09 17:19:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-09 20:45:01 -0700
commita96cfd6e9176ad442233001b7d15e9ed42234320 (patch)
tree6aa70841f3f2c3ff39a75d0014b9a235810ccd08 /mm
parent113e27f36dff9895049df324f292474854750d21 (diff)
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')
-rw-r--r--mm/oom_kill.c5
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