tree f15c11fc2c9b08e64555bbb601e582dc8f7325bd
parent bf1c6aca96c9d2f117dc7e590c2bc2304e7febe1
author Sage Weil <sage@newdream.net> 1311705055 -0700
committer Sage Weil <sage@newdream.net> 1311705055 -0700

ceph: avoid d_parent in ceph_dentry_hash; fix ceph_encode_fh() hashing bug

Have caller pass in a safely-obtained reference to the parent directory
for calculating a dentry's hash valud.

While we're here, simpify the flow through ceph_encode_fh() so that there
is a single exit point and cleanup.

Also fix a bug with the dentry hash calculation: calculate the hash for the
dentry we were given, not its parent.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>