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Commit 978097c9 authored by Sage Weil's avatar Sage Weil
Browse files

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: default avatarYehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: default avatarSage Weil <sage@newdream.net>
parent 220bf991

fs/ceph/caps.c

+2 −0
Original line number Diff line number Diff line
@@ -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)