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

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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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Lachlan McIlroy 2007-05-08 13:50:12 +10:00 • committed by Tim Shimmin

parent 3a02ee1828

commit 71dfd5a396

1 changed files with 26 additions and 27 deletions

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fs/xfs/linux-2.6/xfs_lrw.c

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