xfs: fix directory inode iolock lockdep false positive

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The change to add the IO lock to protect the directory extent map
during readdir operations has cause lockdep to have a heart attack
as it now sees a different locking order on inodes w.r.t. the
mmap_sem because readdir has a different ordering to write().

Add a new lockdep class for directory inodes to avoid this false
positive.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>

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Dave Chinner 2014-02-27 16:51:39 +11:00 • committed by Dave Chinner

parent a1358aa3d3

commit 93a8614e3a

1 changed files with 14 additions and 0 deletions

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fs/xfs/xfs_iops.c

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