Commit 535bbb53 authored by Sage Weil's avatar Sage Weil
Browse files

ceph: add version field to message header 



This makes it easier for individual message types to indicate
their particular encoding, and make future changes backward
compatible.

Signed-off-by: default avatarSage Weil <sage@newdream.net>
parent 57203306

fs/ceph/msgr.h

+2 −1
Original line number Diff line number Diff line
@@ -21,7 +21,7 @@ 
 * whenever the wire protocol changes.  try to keep this string length

 * constant.

 */

#define CEPH_BANNER "ceph v021"

#define CEPH_BANNER "ceph v022"

#define CEPH_BANNER_MAX_LEN 30
@@ -125,6 +125,7 @@ struct ceph_msg_header { 
	__le64 seq;       /* message seq# for this session */

	__le16 type;      /* message type */

	__le16 priority;  /* priority.  higher value == higher priority */

	__le16 version;   /* version of message encoding */



	__le32 front_len; /* bytes in main payload */

	__le32 middle_len;/* bytes in middle payload */