Re: [PATCH] oom: do not kill tasks with oom_score_adjOOM_SCORE_ADJ_MIN

[David Rientjes]

On Fri, 4 Nov 2011, Michal Hocko wrote:

> diff --git a/mm/oom_kill.c b/mm/oom_kill.c
> index e916168..4883514 100644
> --- a/mm/oom_kill.c
> +++ b/mm/oom_kill.c
> @@ -185,6 +185,9 @@ unsigned int oom_badness(struct task_struct *p, struct mem_cgroup *mem,
>  	if (!p)
>  		return 0;
>  
> +	if (p->signal->oom_score_adj == OOM_SCORE_ADJ_MIN)
> +		return 0;
> +
>  	/*
>  	 * The memory controller may have a limit of 0 bytes, so avoid a divide
>  	 * by zero, if necessary.

This leaves p locked, you need to do task_unlock(p) first.

Once that's fixed, please add my

	Acked-by: David Rientjes <rientjes@xxxxxxxxxx>

and resubmit to Andrew for the 3.2 rc series.  Thanks!
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