xfs: fix inode validity check in xfs_iflush_cluster
commit 51b07f30 upstream. Some careless idiot(*) wrote crap code in commit 1a3e8f3d ("xfs: convert inode cache lookups to use RCU locking") back in late 2010, and so xfs_iflush_cluster checks the wrong inode for whether it is still valid under RCU protection. Fix it to lock and check the correct inode. (*) Careless-idiot: Dave Chinner <dchinner@redhat.com> cc: <stable@vger.kernel.org> # 3.10.x- Discovered-by:Brain Foster <bfoster@redhat.com> Signed-off-by:
Dave Chinner <dchinner@redhat.com> Reviewed-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
Dave Chinner <david@fromorbit.com> Signed-off-by:
Willy Tarreau <w@1wt.eu>
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