From: Sage Weil <sage@newdream.net>
Date: Tue, 26 Jul 2011 18:28:11 +0000 (-0700)
Subject: ceph: fix ceph_lookup_open intent usage
X-Git-Tag: v3.1-rc1~220^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=468640e32c7f6bfdaaa011095cc388786755d159;p=pandora-kernel.git

ceph: fix ceph_lookup_open intent usage

We weren't properly calling lookup_instantiate_filp when setting up the
lookup intent, which could lead to file leakage on errors.  So:

 - use separate helper for the hidden snapdir translation, immediately
   following the mds request
 - use ceph_finish_lookup for the final dentry/return value dance in the
   exit path
 - lookup_instantiate_filp on success

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
---

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