From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Lameter <clameter@sgi.com>
Subject: Re: [RFC 13/26] SLUB: Add SlabReclaimable() to avoid repeated reclaim
 attempts
Date: Wed, 19 Sep 2007 11:00:53 -0700 (PDT)
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Cc: Andy Whitcroft <apw@shadowen.org>, linux-kernel@vger.kernel.org,
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	Christoph Hellwig <hch@lst.de>, Mel Gorman <mel@skynet.ie>,
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To: Rik van Riel <riel@redhat.com>
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On Wed, 19 Sep 2007, Rik van Riel wrote:

> Why is it safe to not use the normal page flag bit operators
> for these page flags operations?

Because SLUB always modifies page flags under PageLock.