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authorSage Weil <sage@newdream.net>2009-10-13 12:55:26 -0700
committerSage Weil <sage@newdream.net>2009-10-13 12:55:26 -0700
commit535bbb530764b1b2b3b732837f0e61e1baae7109 (patch)
tree9e1fae00cbfdae92638f049e20d14863abc33716 /fs
parent572033069dbc2cff8d4a2d2b34c576e1813fda70 (diff)
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: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs')
-rw-r--r--fs/ceph/msgr.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/ceph/msgr.h b/fs/ceph/msgr.h
index 73921ae43fa..9abc879e25b 100644
--- a/fs/ceph/msgr.h
+++ b/fs/ceph/msgr.h
@@ -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 */