From: Sage Weil <sage@newdream.net>
Date: Tue, 26 Jul 2011 18:30:55 +0000 (-0700)
Subject: ceph: avoid d_parent in ceph_dentry_hash; fix ceph_encode_fh() hashing bug
X-Git-Tag: v3.1-rc1~220^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e5f86dc377e7ff2b4195831153a85a3e76fefff2;p=pandora-kernel.git

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>
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