tree cd9a68a6f7ecefc76e7e66e21fd936a60a1e2b6f
parent ea562ed6e7df5acd9392d993882c39e855099165
author Peter Watkins <treestem@gmail.com> 1336421497 -0400
committer Ben Myers <bpm@sgi.com> 1337615144 -0500

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>