From ca18bede048e95a749d13410ce1da4ad0ffa7938 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zheng.z.yan@intel.com>
Date: Fri, 22 Nov 2013 14:21:44 +0800
Subject: [PATCH] ceph: handle -ESTALE reply

Send requests that operate on path to directory's auth MDS if
mode == USE_AUTH_MDS. Always retry using the auth MDS if got
-ESTALE reply from non-auth MDS. Also clean up the code that
handles auth MDS change.

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