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/mon_client.c b/fs/ceph/mon_client.c
index 35f593e..9900706 100644
--- a/fs/ceph/mon_client.c
+++ b/fs/ceph/mon_client.c
@@ -191,7 +191,7 @@
 		struct ceph_mon_subscribe_item *i;
 		void *p, *end;
 
-		msg = ceph_msg_new(CEPH_MSG_MON_SUBSCRIBE, 96, 0, 0, NULL);
+		msg = ceph_msg_new(CEPH_MSG_MON_SUBSCRIBE, 96);
 		if (!msg)
 			return;
 
@@ -491,10 +491,10 @@
 	init_completion(&req->completion);
 
 	err = -ENOMEM;
-	req->request = ceph_msg_new(CEPH_MSG_STATFS, sizeof(*h), 0, 0, NULL);
+	req->request = ceph_msg_new(CEPH_MSG_STATFS, sizeof(*h));
 	if (!req->request)
 		goto out;
-	req->reply = ceph_msg_new(CEPH_MSG_STATFS_REPLY, 1024, 0, 0, NULL);
+	req->reply = ceph_msg_new(CEPH_MSG_STATFS_REPLY, 1024);
 	if (!req->reply)
 		goto out;
 
@@ -633,17 +633,15 @@
 	/* msg pools */
 	err = -ENOMEM;
 	monc->m_subscribe_ack = ceph_msg_new(CEPH_MSG_MON_SUBSCRIBE_ACK,
-				     sizeof(struct ceph_mon_subscribe_ack),
-				     0, 0, NULL);
+				     sizeof(struct ceph_mon_subscribe_ack));
 	if (!monc->m_subscribe_ack)
 		goto out_monmap;
 
-	monc->m_auth_reply = ceph_msg_new(CEPH_MSG_AUTH_REPLY, 4096, 0, 0,
-					  NULL);
+	monc->m_auth_reply = ceph_msg_new(CEPH_MSG_AUTH_REPLY, 4096);
 	if (!monc->m_auth_reply)
 		goto out_subscribe_ack;
 
-	monc->m_auth = ceph_msg_new(CEPH_MSG_AUTH, 4096, 0, 0, NULL);
+	monc->m_auth = ceph_msg_new(CEPH_MSG_AUTH, 4096);
 	monc->pending_auth = 0;
 	if (!monc->m_auth)
 		goto out_auth_reply;
@@ -818,7 +816,7 @@
 	case CEPH_MSG_MON_MAP:
 	case CEPH_MSG_MDS_MAP:
 	case CEPH_MSG_OSD_MAP:
-		m = ceph_msg_new(type, front_len, 0, 0, NULL);
+		m = ceph_msg_new(type, front_len);
 		break;
 	}