xfs: fix memory reclaim recursion deadlock on locked inode buffer

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Calling into memory reclaim with a locked inode buffer can deadlock
if memory reclaim tries to lock the inode buffer during inode
teardown. Convert the relevant memory allocations to use KM_NOFS to
avoid this deadlock condition.

Reported-by: Peter Watkins <treestem@gmail.com>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

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Dave Chinner 2010-07-20 17:53:59 +10:00 • committed by Alex Elder

parent 438697064a

commit 4a7edddcb5

1 changed files with 11 additions and 9 deletions

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fs/xfs/xfs_inode.c

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