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ceph: check mds_wanted for imported cap 

The MDS may have incorrect wanted caps after importing caps. So the
client should check the value mds has and send cap update if necessary.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>
This commit is contained in:
Yan, Zheng 2013-01-04 15:30:10 +08:00 committed by Alex Elder
parent 66f58691c5
commit 390306c38d
1 changed files with 3 additions and 1 deletions
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4
fs/ceph/caps.c
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@ -2429,7 +2429,9 @@ static void handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
dout("mds wanted %s -> %s\n", dout("mds wanted %s -> %s\n",
ceph_cap_string(le32_to_cpu(grant->wanted)), ceph_cap_string(le32_to_cpu(grant->wanted)),
ceph_cap_string(wanted)); ceph_cap_string(wanted));
grant->wanted = cpu_to_le32(wanted); /* imported cap may not have correct mds_wanted */
if (le32_to_cpu(grant->op) == CEPH_CAP_OP_IMPORT)
check_caps = 1;
} }
cap->seq = seq; cap->seq = seq;