xfs: fix memory reclaim deadlock on agi buffer
Note xfs_iget can be called while holding a locked agi buffer. If it goes into memory reclaim then inode teardown may try to lock the same buffer. Prevent the deadlock by calling radix_tree_preload with GFP_NOFS. Signed-off-by:Peter Watkins <treestem@gmail.com> Reviewed-by:
Dave Chinner <dchinner@redhat.com> Signed-off-by:
Ben Myers <bpm@sgi.com>
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