linux-kernel - Re: [PATCH 02/10] mm: system wide ALLOC_NO

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Date:	Thu, 9 Aug 2007 23:34:20 -0400
From:	"Daniel Phillips" <daniel.raymond.phillips@...il.com>
To:	"Christoph Lameter" <clameter@....com>
Cc:	"Daniel Phillips" <phillips@...nq.net>,
	"Peter Zijlstra" <a.p.zijlstra@...llo.nl>,
	"Matt Mackall" <mpm@...enic.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, "David Miller" <davem@...emloft.net>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Daniel Phillips" <phillips@...gle.com>
Subject: Re: [PATCH 02/10] mm: system wide ALLOC_NO_WATERMARK

On 8/9/07, Christoph Lameter <clameter@....com> wrote:
> The allocations problems that this patch addresses can be fixed by making reclaim
> more intelligent.

If you believe that the deadlock problems we address here can be
better fixed by making reclaim more intelligent then please post a
patch and we will test it.  I am highly skeptical, but the proof is in
the patch.

> If we can reclaim in an emergency even in ATOMIC contexts then things get much
> easier.

It is already easy, and it is already fixed in this patch series.
Sure, we can pare these patches down a little more, but you are going
to have a really hard time coming up with something simpler that
actually works.

Regards,

Daniel
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