ceph: simplify ceph_msg_new

We only need to pass in front_len.  Callers can attach any other payload
pieces (middle, data) as they see fit.

Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/fs/ceph/osd_client.c b/fs/ceph/osd_client.c
index a51d0df..a44b3b6 100644
--- a/fs/ceph/osd_client.c
+++ b/fs/ceph/osd_client.c
@@ -164,7 +164,7 @@
 		msg = ceph_msgpool_get(&osdc->msgpool_op_reply, 0);
 	else
 		msg = ceph_msg_new(CEPH_MSG_OSD_OPREPLY,
-				   OSD_OPREPLY_FRONT_LEN, 0, 0, NULL);
+				   OSD_OPREPLY_FRONT_LEN);
 	if (!msg) {
 		ceph_osdc_put_request(req);
 		return NULL;
@@ -178,7 +178,7 @@
 	if (use_mempool)
 		msg = ceph_msgpool_get(&osdc->msgpool_op, 0);
 	else
-		msg = ceph_msg_new(CEPH_MSG_OSD_OP, msg_size, 0, 0, NULL);
+		msg = ceph_msg_new(CEPH_MSG_OSD_OP, msg_size);
 	if (!msg) {
 		ceph_osdc_put_request(req);
 		return NULL;
@@ -1392,7 +1392,7 @@
 	if (front > req->r_reply->front.iov_len) {
 		pr_warning("get_reply front %d > preallocated %d\n",
 			   front, (int)req->r_reply->front.iov_len);
-		m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front, 0, 0, NULL);
+		m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front);
 		if (!m)
 			goto out;
 		ceph_msg_put(req->r_reply);
@@ -1435,7 +1435,7 @@
 
 	switch (type) {
 	case CEPH_MSG_OSD_MAP:
-		return ceph_msg_new(type, front, 0, 0, NULL);
+		return ceph_msg_new(type, front);
 	case CEPH_MSG_OSD_OPREPLY:
 		return get_reply(con, hdr, skip);
 	default: