From: Sage Weil <sage@newdream.net>
Date: Tue, 26 Jul 2011 18:30:43 +0000 (-0700)
Subject: ceph: protect d_parent access in ceph_d_revalidate
X-Git-Tag: v3.1-rc1~220^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bf1c6aca96c9d2f117dc7e590c2bc2304e7febe1;p=pandora-kernel.git

ceph: protect d_parent access in ceph_d_revalidate

Protect d_parent with d_lock.  Carry a reference.  Simplify the flow so
that there is a single exit point and cleanup.

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