Re: [patch] oom: give current access to memory reserves if it hasbeen killed

From: Oleg Nesterov
Date: Fri Apr 02 2010 - 16:58:03 EST

On 04/02, David Rientjes wrote:
> On Fri, 2 Apr 2010, Oleg Nesterov wrote:
> >
> > > I prefer to keep oom_badness() to be a positive range as
> > > it always has been (and /proc/pid/oom_score has always used an unsigned
> > > qualifier),
> >
> > Yes, I thought about /proc/pid/oom_score, but imho this is minor issue.
> > We can s/%lu/%ld/ though, or just report 0 if oom_badness() returns -1.
> > Or something.
> Just have it return 0, meaning never kill, and then ensure "chosen" is
> never set for an oom_badness() of 0, even if we don't have another task to
> kill. That's how Documentation/filesystems/proc.txt describes it anyway.

OK, agreed, this makes more sense and more clean. I misunderstood you even
more before.

Thanks, I'll redo/resend 3/4.


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