From: Lachlan McIlroy <lachlan@sgi.com>
Date: Tue, 8 May 2007 03:50:12 +0000 (+1000)
Subject: [XFS] Fix race in xfs_write() b/w dmapi callout and direct I/O checks.
X-Git-Tag: v2.6.22-rc1~353^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=71dfd5a396d11512aa6c8ed0d35b268bc084bb9b;p=pandora-kernel.git

[XFS] Fix race in xfs_write() b/w dmapi callout and direct I/O checks.

In xfs_write() the iolock is dropped and reacquired in XFS_SEND_DATA()
which means that the file could change from not-cached to cached and we
need to redo the direct I/O checks. We should also redo the direct I/O
checks when the file size changes regardless if O_APPEND is set or not.

SGI-PV: 963483
SGI-Modid: xfs-linux-melb:xfs-kern:28440a

Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
---

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