TARUISI Hiroaki 98d377a089 Btrfs: add a function to lookup a directory path by following backrefs
This will be used by the inode lookup ioctl.

Signed-off-by: TARUISI Hiroaki <taruishi.hiroak@jp.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2010-03-15 10:55:09 -04:00
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