Re: [PATCH 05/11] oom: /proc/<pid>/oom_score treat kernel thread honestly

From: KOSAKI Motohiro
Date: Wed Jun 30 2010 - 20:07:45 EST

> On Wed, Jun 30, 2010 at 06:30:19PM +0900, KOSAKI Motohiro wrote:
> > If kernel thread are using use_mm(), badness() return positive value.
> > This is not big issue because caller care it correctly. but there is
> > one exception, /proc/<pid>/oom_score call badness() directly and
> > don't care the task is regular process.
> >
> > another example, /proc/1/oom_score return !0 value. but it's unkillable.
> > This incorrectness makes confusing to admin a bit.
> Hmm. If it is a really problem, Could we solve it in proc_oom_score itself?

probably, no good idea. For maintainance view, all oom related code should
be gathered in oom_kill.c.
If you dislike to add messy into badness(), I hope to make badness_for_oom_score()
or something like instead.

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