From: Yan, Zheng <zheng.z.yan@intel.com>
Date: Tue, 2 Jul 2013 04:40:21 +0000 (+0800)
Subject: ceph: fix race between cap issue and revoke
X-Git-Tag: v3.11-rc1~69^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6ee6b95373dfa1d0a4c9bc76689ec10a60c1d6f2;p=pandora-kernel.git

ceph: fix race between cap issue and revoke

If we receive new caps from the auth MDS and the non-auth MDS is
revoking the newly issued caps, we should release the caps from
the non-auth MDS. The scenario is filelock's state changes from
SYNC to LOCK. Non-auth MDS revokes Fc cap, the client gets Fc cap
from the auth MDS at the same time.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>
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