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ceph: implemented caps should always be superset of issued caps 

Added assertion, and cleared one case where the implemented caps were
not following the issued caps.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2010-03-08 15:27:53 -08:00
parent 220bf991b0
commit 978097c907
1 changed files with 2 additions and 0 deletions
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2
fs/ceph/caps.c
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@ -2334,6 +2334,7 @@ static int handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
revoked_rdcache)
reply = 2; /* send revoke ack in check_caps */
cap->issued = newcaps;
cap->implemented |= newcaps;
} else if (cap->issued == newcaps) {
dout("caps unchanged: %s -> %s\n",
ceph_cap_string(cap->issued), ceph_cap_string(newcaps));
@ -2346,6 +2347,7 @@ static int handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
* pending revocation */
wake = 1;
}
BUG_ON(cap->issued & ~cap->implemented);
spin_unlock(&inode->i_lock);
if (writeback)