From: Yan, Zheng <zheng.z.yan@intel.com>
Date: Fri, 18 Apr 2014 14:01:38 +0000 (+0800)
Subject: ceph: remember subtree root dirfrag's auth MDS
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~24^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8d08503c130e96e3794f66fe47053051460b1584;p=pandora-kernel.git

ceph: remember subtree root dirfrag's auth MDS

remember dirfrag's auth MDS when it's different from its parent inode's
auth MDS.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
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