diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 93c1afe3f0b3..847ae64346fe 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -922,14 +922,14 @@ static int send_cap_msg(struct ceph_mds_session *session,
 	if (IS_ERR(msg))
 		return PTR_ERR(msg);
 
-	fc = msg->front.iov_base;
+	msg->hdr.tid = cpu_to_le64(flush_tid);
 
+	fc = msg->front.iov_base;
 	memset(fc, 0, sizeof(*fc));
 
 	fc->cap_id = cpu_to_le64(cid);
 	fc->op = cpu_to_le32(op);
 	fc->seq = cpu_to_le32(seq);
-	fc->client_tid = cpu_to_le64(flush_tid);
 	fc->issue_seq = cpu_to_le32(issue_seq);
 	fc->migrate_seq = cpu_to_le32(mseq);
 	fc->caps = cpu_to_le32(caps);
@@ -2329,7 +2329,7 @@ restart:
  * Handle FLUSH_ACK from MDS, indicating that metadata we sent to the
  * MDS has been safely committed.
  */
-static void handle_cap_flush_ack(struct inode *inode,
+static void handle_cap_flush_ack(struct inode *inode, u64 flush_tid,
 				 struct ceph_mds_caps *m,
 				 struct ceph_mds_session *session,
 				 struct ceph_cap *cap)
@@ -2340,7 +2340,6 @@ static void handle_cap_flush_ack(struct inode *inode,
 	unsigned seq = le32_to_cpu(m->seq);
 	int dirty = le32_to_cpu(m->dirty);
 	int cleaned = 0;
-	u64 flush_tid = le64_to_cpu(m->client_tid);
 	int drop = 0;
 	int i;
 
@@ -2396,13 +2395,12 @@ out:
  *
  * Caller hold s_mutex.
  */
-static void handle_cap_flushsnap_ack(struct inode *inode,
+static void handle_cap_flushsnap_ack(struct inode *inode, u64 flush_tid,
 				     struct ceph_mds_caps *m,
 				     struct ceph_mds_session *session)
 {
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	u64 follows = le64_to_cpu(m->snap_follows);
-	u64 flush_tid = le64_to_cpu(m->client_tid);
 	struct ceph_cap_snap *capsnap;
 	int drop = 0;
 
@@ -2587,12 +2585,14 @@ void ceph_handle_caps(struct ceph_mds_session *session,
 	struct ceph_vino vino;
 	u64 cap_id;
 	u64 size, max_size;
+	u64 tid;
 	int check_caps = 0;
 	int r;
 
 	dout("handle_caps from mds%d\n", mds);
 
 	/* decode */
+	tid = le64_to_cpu(msg->hdr.tid);
 	if (msg->front.iov_len < sizeof(*h))
 		goto bad;
 	h = msg->front.iov_base;
@@ -2621,7 +2621,7 @@ void ceph_handle_caps(struct ceph_mds_session *session,
 	/* these will work even if we don't have a cap yet */
 	switch (op) {
 	case CEPH_CAP_OP_FLUSHSNAP_ACK:
-		handle_cap_flushsnap_ack(inode, h, session);
+		handle_cap_flushsnap_ack(inode, tid, h, session);
 		goto done;
 
 	case CEPH_CAP_OP_EXPORT:
@@ -2662,7 +2662,7 @@ void ceph_handle_caps(struct ceph_mds_session *session,
 		break;
 
 	case CEPH_CAP_OP_FLUSH_ACK:
-		handle_cap_flush_ack(inode, h, session, cap);
+		handle_cap_flush_ack(inode, tid, h, session, cap);
 		break;
 
 	case CEPH_CAP_OP_TRUNC:
diff --git a/fs/ceph/ceph_fs.h b/fs/ceph/ceph_fs.h
index e2fd0247827e..e87dfa6ec8e5 100644
--- a/fs/ceph/ceph_fs.h
+++ b/fs/ceph/ceph_fs.h
@@ -35,7 +35,7 @@
  * internal cluster protocols separately from the public,
  * client-facing protocol.
  */
-#define CEPH_OSD_PROTOCOL     7 /* cluster internal */
+#define CEPH_OSD_PROTOCOL     8 /* cluster internal */
 #define CEPH_MDS_PROTOCOL     9 /* cluster internal */
 #define CEPH_MON_PROTOCOL     5 /* cluster internal */
 #define CEPH_OSDC_PROTOCOL   22 /* server/client */
@@ -136,7 +136,6 @@ struct ceph_mon_request_header {
 struct ceph_mon_statfs {
 	struct ceph_mon_request_header monhdr;
 	struct ceph_fsid fsid;
-	__le64 tid;
 } __attribute__ ((packed));
 
 struct ceph_statfs {
@@ -146,7 +145,6 @@ struct ceph_statfs {
 
 struct ceph_mon_statfs_reply {
 	struct ceph_fsid fsid;
-	__le64 tid;
 	__le64 version;
 	struct ceph_statfs st;
 } __attribute__ ((packed));
@@ -333,7 +331,7 @@ union ceph_mds_request_args {
 #define CEPH_MDS_FLAG_WANT_DENTRY   2  /* want dentry in reply */
 
 struct ceph_mds_request_head {
-	__le64 tid, oldest_client_tid;
+	__le64 oldest_client_tid;
 	__le32 mdsmap_epoch;           /* on client */
 	__le32 flags;                  /* CEPH_MDS_FLAG_* */
 	__u8 num_retry, num_fwd;       /* count retry, fwd attempts */
@@ -356,7 +354,6 @@ struct ceph_mds_request_release {
 
 /* client reply */
 struct ceph_mds_reply_head {
-	__le64 tid;
 	__le32 op;
 	__le32 result;
 	__le32 mdsmap_epoch;
@@ -542,7 +539,6 @@ struct ceph_mds_caps {
 	__le32 migrate_seq;
 	__le64 snap_follows;
 	__le32 snap_trace_len;
-	__le64 client_tid;          /* for FLUSH(SNAP) -> FLUSH(SNAP)_ACK */
 
 	/* authlock */
 	__le32 uid, gid, mode;
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 63ca3b1ad45f..ec884e2845db 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1339,6 +1339,8 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc,
 	if (IS_ERR(msg))
 		goto out_free2;
 
+	msg->hdr.tid = cpu_to_le64(req->r_tid);
+
 	head = msg->front.iov_base;
 	p = msg->front.iov_base + sizeof(*head);
 	end = msg->front.iov_base + msg->front.iov_len;
@@ -1431,7 +1433,6 @@ static int __prepare_send_request(struct ceph_mds_client *mdsc,
 	req->r_request = msg;
 
 	rhead = msg->front.iov_base;
-	rhead->tid = cpu_to_le64(req->r_tid);
 	rhead->oldest_client_tid = cpu_to_le64(__get_oldest_tid(mdsc));
 	if (req->r_got_unsafe)
 		flags |= CEPH_MDS_FLAG_REPLAY;
@@ -1664,7 +1665,7 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg)
 	}
 
 	/* get request, session */
-	tid = le64_to_cpu(head->tid);
+	tid = le64_to_cpu(msg->hdr.tid);
 	mutex_lock(&mdsc->mutex);
 	req = __lookup_request(mdsc, tid);
 	if (!req) {
diff --git a/fs/ceph/mon_client.c b/fs/ceph/mon_client.c
index 775a9c029c51..bb94006fc686 100644
--- a/fs/ceph/mon_client.c
+++ b/fs/ceph/mon_client.c
@@ -349,7 +349,7 @@ static void handle_statfs_reply(struct ceph_mon_client *monc,
 
 	if (msg->front.iov_len != sizeof(*reply))
 		goto bad;
-	tid = le64_to_cpu(reply->tid);
+	tid = le64_to_cpu(msg->hdr.tid);
 	dout("handle_statfs_reply %p tid %llu\n", msg, tid);
 
 	mutex_lock(&monc->mutex);
@@ -382,12 +382,12 @@ static int send_statfs(struct ceph_mon_client *monc,
 	if (IS_ERR(msg))
 		return PTR_ERR(msg);
 	req->request = msg;
+	msg->hdr.tid = cpu_to_le64(req->tid);
 	h = msg->front.iov_base;
 	h->monhdr.have_version = 0;
 	h->monhdr.session_mon = cpu_to_le16(-1);
 	h->monhdr.session_mon_tid = 0;
 	h->fsid = monc->monmap->fsid;
-	h->tid = cpu_to_le64(req->tid);
 	ceph_con_send(monc->con, msg);
 	return 0;
 }
diff --git a/fs/ceph/msgr.h b/fs/ceph/msgr.h
index c758e8f8f71b..e46d8b806dea 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 v024"
+#define CEPH_BANNER "ceph v025"
 #define CEPH_BANNER_MAX_LEN 30
 
 
@@ -132,6 +132,7 @@ struct ceph_msg_connect_reply {
  */
 struct ceph_msg_header {
 	__le64 seq;       /* message seq# for this session */
+	__le64 tid;       /* transaction id */
 	__le16 type;      /* message type */
 	__le16 priority;  /* priority.  higher value == higher priority */
 	__le16 version;   /* version of message encoding */
diff --git a/fs/ceph/osd_client.c b/fs/ceph/osd_client.c
index 374f0013956c..a0aac436d5d4 100644
--- a/fs/ceph/osd_client.c
+++ b/fs/ceph/osd_client.c
@@ -439,11 +439,9 @@ static struct ceph_osd *__lookup_osd(struct ceph_osd_client *osdc, int o)
 static void register_request(struct ceph_osd_client *osdc,
 			     struct ceph_osd_request *req)
 {
-	struct ceph_osd_request_head *head = req->r_request->front.iov_base;
-
 	mutex_lock(&osdc->request_mutex);
 	req->r_tid = ++osdc->last_tid;
-	head->tid = cpu_to_le64(req->r_tid);
+	req->r_request->hdr.tid = cpu_to_le64(req->r_tid);
 
 	dout("register_request %p tid %lld\n", req, req->r_tid);
 	__insert_request(osdc, req);
@@ -702,9 +700,9 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg,
 	u64 tid;
 	int numops, object_len, flags;
 
+	tid = le64_to_cpu(msg->hdr.tid);
 	if (msg->front.iov_len < sizeof(*rhead))
 		goto bad;
-	tid = le64_to_cpu(rhead->tid);
 	numops = le32_to_cpu(rhead->num_ops);
 	object_len = le32_to_cpu(rhead->object_len);
 	if (msg->front.iov_len != sizeof(*rhead) + object_len +
@@ -1002,7 +1000,6 @@ static int prepare_pages(struct ceph_connection *con, struct ceph_msg *m,
 {
 	struct ceph_osd *osd = con->private;
 	struct ceph_osd_client *osdc;
-	struct ceph_osd_reply_head *rhead = m->front.iov_base;
 	struct ceph_osd_request *req;
 	u64 tid;
 	int ret = -1;
@@ -1016,7 +1013,7 @@ static int prepare_pages(struct ceph_connection *con, struct ceph_msg *m,
 	if (unlikely(type != CEPH_MSG_OSD_OPREPLY))
 		return -1;  /* hmm! */
 
-	tid = le64_to_cpu(rhead->tid);
+	tid = le64_to_cpu(m->hdr.tid);
 	mutex_lock(&osdc->request_mutex);
 	req = __lookup_request(osdc, tid);
 	if (!req) {
diff --git a/fs/ceph/rados.h b/fs/ceph/rados.h
index 12bfb2f7c275..c5614d4ae34a 100644
--- a/fs/ceph/rados.h
+++ b/fs/ceph/rados.h
@@ -331,7 +331,6 @@ struct ceph_osd_op {
  * ceph_osd_op object operations.
  */
 struct ceph_osd_request_head {
-	__le64 tid;                        /* transaction id */
 	__le32 client_inc;                 /* client incarnation */
 	struct ceph_object_layout layout;  /* pgid */
 	__le32 osdmap_epoch;               /* client's osdmap epoch */
@@ -352,7 +351,6 @@ struct ceph_osd_request_head {
 } __attribute__ ((packed));
 
 struct ceph_osd_reply_head {
-	__le64 tid;                       /* transaction id */
 	__le32 client_inc;                /* client incarnation */
 	__le32 flags;
 	struct ceph_object_layout layout;