Re: [PATCH 1/9] oom: don't try to kill oom_unkillable child

From: Minchan Kim
Date: Wed Jun 16 2010 - 10:41:41 EST


On Wed, Jun 16, 2010 at 08:29:13PM +0900, KOSAKI Motohiro wrote:
> Now, badness() doesn't care neigher CPUSET nor mempolicy. Then
> if the victim child process have disjoint nodemask, __out_of_memory()
> can makes kernel hang eventually.
>
> This patch fixes it.
>
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Reviewed-by: Minchan Kim <minchan.kim@xxxxxxxxx>

This patch inclues two things.

1. consider cpuset and mempolicy in oom_kill_process
2. Simplify mempolicy oom check with nodemask != NULL
in select_bad_process.

1) change behavior but 2) is just cleanup.
It should have been in another patch to reivew easily. :)

--
Kind regards,
Minchan Kim
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