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>
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index db122bb..57d9b44 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -2334,6 +2334,7 @@
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 @@
* pending revocation */
wake = 1;
}
+ BUG_ON(cap->issued & ~cap->implemented);
spin_unlock(&inode->i_lock);
if (writeback)
