From: Yan, Zheng <zheng.z.yan@intel.com>
Date: Fri, 22 Nov 2013 05:50:45 +0000 (+0800)
Subject: ceph: fix cache revoke race
X-Git-Tag: v3.14-rc1~71^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9563f88c1fa01341d125e396edc654a8dbcab2d2;p=pandora-kernel.git

ceph: fix cache revoke race

handle following sequence of events:

- non-auth MDS revokes Fc cap. queue invalidate work
- auth MDS issues Fc cap through request reply. i_rdcache_gen gets
  increased.
- invalidate work runs. it finds i_rdcache_revoking != i_rdcache_gen,
  so it does nothing.

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

Reading git-diff-tree failed