linux-kernel - Re: [PATCH] mm: Warn once when a page is freed with PG

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Message-ID: <20090716160139.GB1883@cmpxchg.org>
Date:	Thu, 16 Jul 2009 18:01:39 +0200
From:	Johannes Weiner <hannes@...xchg.org>
To:	Christoph Lameter <cl@...ux-foundation.org>
Cc:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Mel Gorman <mel@....ul.ie>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Maxim Levitsky <maximlevitsky@...il.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Lee Schermerhorn <Lee.Schermerhorn@...com>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Jiri Slaby <jirislaby@...il.com>
Subject: Re: [PATCH] mm: Warn once when a page is freed with PG_mlocked set V2

On Thu, Jul 16, 2009 at 09:54:49AM -0400, Christoph Lameter wrote:
> On Thu, 16 Jul 2009, KOSAKI Motohiro wrote:
> 
> > I like this patch. but can you please separate two following patches?
> >   - introduce __TESTCLEARFLAG()
> >   - non-atomic test-clear of PG_mlocked on free
> 
> That would mean introducing the macro without any use case? It is fine the
> way it is I think.

Yeah, it's borderline.  In any case, I have the split version here as
well.  Andrew, you choose :)

> Reviewed-by: Christoph Lameter <cl@...ux-foundation.org>

Thanks,

	Hannes
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