From: Yan, Zheng <zheng.z.yan@intel.com>
Date: Sat, 8 Mar 2014 12:12:23 +0000 (+0800)
Subject: ceph: update i_max_size even if inode version does not change
X-Git-Tag: v3.15-rc1~61^2~54
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8c93cd610c6c5a4c0dddfc6fe906814331b3af87;p=pandora-kernel.git

ceph: update i_max_size even if inode version does not change

handle following sequence of events:
 - client releases a inode with i_max_size > 0. The release message
   is queued. (is not sent to the auth MDS)
 - a 'lookup' request reply from non-auth MDS returns the same inode.
 - client opens the inode in write mode. The version of inode trace
   in 'open' request reply is equal to the cached inode's version.
 - client requests new max size. The MDS ignores the request because
   it does not affect client's write range

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