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

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Message-Id: <200804261651.02078.vda.linux@googlemail.com>
Date:	Sat, 26 Apr 2008 16:51:02 +0200
From:	Denys Vlasenko <vda.linux@...glemail.com>
To:	David Chinner <dgc@....com>
Cc:	xfs@....sgi.com, Eric Sandeen <sandeen@...deen.net>,
	Adrian Bunk <bunk@...nel.org>, linux-kernel@...r.kernel.org
Subject: [PATCH] xfs: reduce stack usage in xfs_bmap_btalloc()

Hi David,

This patch reduces xfs_bmap_btalloc() stack usage by 50 bytes
by moving part of its body into a helper function.

This results in some variables not taking stack space in
xfs_bmap_btalloc() anymore.

The helper itself does not call anything stack-deep.
Stack-deep call to xfs_alloc_vextent() happen
in xfs_bmap_btalloc(), as before.

Compile tested only.

Signed-off-by: Denys Vlasenko <vda.linux@...glemail.com>
--
vda

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