From: David Chinner <dgc@sgi.com>
Date: Mon, 18 Jun 2007 06:49:58 +0000 (+1000)
Subject: [XFS] Map unwritten extents correctly for I/o completion processing
X-Git-Tag: v2.6.23-rc1~1056^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=effd120edb7609069cca9f3d1cb4bfae464b2f85;p=pandora-kernel.git

[XFS] Map unwritten extents correctly for I/o completion processing

If we have multiple unwritten extents within a single page, we fail to
tell the I/o completion construction handlers we need a new handle for the
second and subsequent blocks in the page. While we still issue the I/O
correctly, we do not have the correct ranges recorded in the ioend
structures and hence when we go to convert the unwritten extents we screw
it up.

Make sure we start a new ioend every time the mapping changes so that we
convert the correct ranges on I/O completion.

SGI-PV: 964647
SGI-Modid: xfs-linux-melb:xfs-kern:28797a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>
---

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