linux-kernel - Re: [PATCH] xfs: reduce stack usage in xfs_page_state

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Message-ID: <20080428035023.GA14275@infradead.org>
Date:	Sun, 27 Apr 2008 23:50:23 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	David Chinner <dgc@....com>
Cc:	Denys Vlasenko <vda.linux@...glemail.com>, xfs@....sgi.com,
	Eric Sandeen <sandeen@...deen.net>,
	Adrian Bunk <bunk@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] xfs: reduce stack usage in xfs_page_state_convert()

On Mon, Apr 28, 2008 at 09:23:17AM +1000, David Chinner wrote:
> No. That code is complex enough with only one copy of it around. I don't
> want two copies that differ subtly and hence have two different sets
> of nasty, rarely hit corner cases in them.

Actually the split makes some sense.  I had a ready patch to split out
releasepage which makes the whole code a lot nicer.  I didn't go forward
with it because I had this idea that it would get replaced by Chris
extent_map stuff ASAP..

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