On 04/02, David Rientjes wrote:
>
> An oom_badness() score of 0 means "never kill" according to
> Documentation/filesystems/proc.txt, so explicitly exclude it from being
> selected for kill. These tasks have either detached their p->mm or are
> set to OOM_DISABLE.
Agreed, but
> @@ -336,6 +336,8 @@ static struct task_struct *select_bad_process(unsigned int *ppoints,
> continue;
>
> points = oom_badness(p, totalpages);
> + if (!points)
> + continue;
> if (points > *ppoints || !chosen) {
then "|| !chosen" can be killed.
with this patch !chosen <=> !*ppoints, and since points > 0
if (points > *ppoints) {
is enough.
Oleg.
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