[XFS] Fix racy access to pb_flags. pagebuf_rele() modified pb_flags after

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the pagebuf had been unlocked if the buffer was delwri. At high load, this
could result in a race when the superblock was being synced that would
result the flags being incorrect and the iodone functions being executed
incorrectly. This then leads to iclog callback failures or AIL list
corruptions resulting in filesystem shutdowns.

SGI-PV: 923981
SGI-Modid: xfs-linux:xfs-kern:23616a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>

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David Chinner 2005-09-05 08:33:35 +10:00 • committed by Nathan Scott

parent ba403ab43e

commit 2f92658751

2 changed files with 51 additions and 18 deletions

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66

fs/xfs/linux-2.6/xfs_buf.c

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3

fs/xfs/linux-2.6/xfs_buf.h

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