1 files changed, 0 insertions, 249 deletions

diff --git a/net/tipc/link.c b/net/tipc/link.c
index 68d2afb..93a8033 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -82,9 +82,6 @@ static void tipc_link_proto_rcv(struct tipc_link *l_ptr, struct sk_buff *buf);
 static int  tipc_link_tunnel_rcv(struct tipc_node *n_ptr,
 				 struct sk_buff **buf);
 static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tolerance);
-static int  tipc_link_iovec_long_xmit(struct tipc_port *sender,
-				      struct iovec const *msg_sect,
-				      unsigned int len, u32 destnode);
 static void link_state_event(struct tipc_link *l_ptr, u32 event);
 static void link_reset_statistics(struct tipc_link *l_ptr);
 static void link_print(struct tipc_link *l_ptr, const char *str);
@@ -1071,252 +1068,6 @@ void tipc_link_names_xmit(struct list_head *message_list, u32 dest)
 }
 
 /*
- * tipc_link_xmit_fast: Entry for data messages where the
- * destination link is known and the header is complete,
- * inclusive total message length. Very time critical.
- * Link is locked. Returns user data length.
- */
-static int tipc_link_xmit_fast(struct tipc_link *l_ptr, struct sk_buff *buf,
-			       u32 *used_max_pkt)
-{
-	struct tipc_msg *msg = buf_msg(buf);
-	int res = msg_data_sz(msg);
-
-	if (likely(!link_congested(l_ptr))) {
-		if (likely(msg_size(msg) <= l_ptr->max_pkt)) {
-			link_add_to_outqueue(l_ptr, buf, msg);
-			tipc_bearer_send(l_ptr->bearer_id, buf,
-					 &l_ptr->media_addr);
-			l_ptr->unacked_window = 0;
-			return res;
-		}
-		else
-			*used_max_pkt = l_ptr->max_pkt;
-	}
-	return __tipc_link_xmit(l_ptr, buf);  /* All other cases */
-}
-
-/*
- * tipc_link_iovec_xmit_fast: Entry for messages where the
- * destination processor is known and the header is complete,
- * except for total message length.
- * Returns user data length or errno.
- */
-int tipc_link_iovec_xmit_fast(struct tipc_port *sender,
-			      struct iovec const *msg_sect,
-			      unsigned int len, u32 destaddr)
-{
-	struct tipc_msg *hdr = &sender->phdr;
-	struct tipc_link *l_ptr;
-	struct sk_buff *buf;
-	struct tipc_node *node;
-	int res;
-	u32 selector = msg_origport(hdr) & 1;
-
-again:
-	/*
-	 * Try building message using port's max_pkt hint.
-	 * (Must not hold any locks while building message.)
-	 */
-	res = tipc_msg_build(hdr, msg_sect, len, sender->max_pkt, &buf);
-	/* Exit if build request was invalid */
-	if (unlikely(res < 0))
-		return res;
-
-	node = tipc_node_find(destaddr);
-	if (likely(node)) {
-		tipc_node_lock(node);
-		l_ptr = node->active_links[selector];
-		if (likely(l_ptr)) {
-			if (likely(buf)) {
-				res = tipc_link_xmit_fast(l_ptr, buf,
-							  &sender->max_pkt);
-exit:
-				tipc_node_unlock(node);
-				return res;
-			}
-
-			/* Exit if link (or bearer) is congested */
-			if (link_congested(l_ptr)) {
-				res = link_schedule_port(l_ptr,
-							 sender->ref, res);
-				goto exit;
-			}
-
-			/*
-			 * Message size exceeds max_pkt hint; update hint,
-			 * then re-try fast path or fragment the message
-			 */
-			sender->max_pkt = l_ptr->max_pkt;
-			tipc_node_unlock(node);
-
-
-			if ((msg_hdr_sz(hdr) + res) <= sender->max_pkt)
-				goto again;
-
-			return tipc_link_iovec_long_xmit(sender, msg_sect,
-							 len, destaddr);
-		}
-		tipc_node_unlock(node);
-	}
-
-	/* Couldn't find a link to the destination node */
-	kfree_skb(buf);
-	tipc_port_iovec_reject(sender, hdr, msg_sect, len, TIPC_ERR_NO_NODE);
-	return -ENETUNREACH;
-}
-
-/*
- * tipc_link_iovec_long_xmit(): Entry for long messages where the
- * destination node is known and the header is complete,
- * inclusive total message length.
- * Link and bearer congestion status have been checked to be ok,
- * and are ignored if they change.
- *
- * Note that fragments do not use the full link MTU so that they won't have
- * to undergo refragmentation if link changeover causes them to be sent
- * over another link with an additional tunnel header added as prefix.
- * (Refragmentation will still occur if the other link has a smaller MTU.)
- *
- * Returns user data length or errno.
- */
-static int tipc_link_iovec_long_xmit(struct tipc_port *sender,
-				     struct iovec const *msg_sect,
-				     unsigned int len, u32 destaddr)
-{
-	struct tipc_link *l_ptr;
-	struct tipc_node *node;
-	struct tipc_msg *hdr = &sender->phdr;
-	u32 dsz = len;
-	u32 max_pkt, fragm_sz, rest;
-	struct tipc_msg fragm_hdr;
-	struct sk_buff *buf, *buf_chain, *prev;
-	u32 fragm_crs, fragm_rest, hsz, sect_rest;
-	const unchar __user *sect_crs;
-	int curr_sect;
-	u32 fragm_no;
-	int res = 0;
-
-again:
-	fragm_no = 1;
-	max_pkt = sender->max_pkt - INT_H_SIZE;
-		/* leave room for tunnel header in case of link changeover */
-	fragm_sz = max_pkt - INT_H_SIZE;
-		/* leave room for fragmentation header in each fragment */
-	rest = dsz;
-	fragm_crs = 0;
-	fragm_rest = 0;
-	sect_rest = 0;
-	sect_crs = NULL;
-	curr_sect = -1;
-
-	/* Prepare reusable fragment header */
-	tipc_msg_init(&fragm_hdr, MSG_FRAGMENTER, FIRST_FRAGMENT,
-		 INT_H_SIZE, msg_destnode(hdr));
-	msg_set_size(&fragm_hdr, max_pkt);
-	msg_set_fragm_no(&fragm_hdr, 1);
-
-	/* Prepare header of first fragment */
-	buf_chain = buf = tipc_buf_acquire(max_pkt);
-	if (!buf)
-		return -ENOMEM;
-	buf->next = NULL;
-	skb_copy_to_linear_data(buf, &fragm_hdr, INT_H_SIZE);
-	hsz = msg_hdr_sz(hdr);
-	skb_copy_to_linear_data_offset(buf, INT_H_SIZE, hdr, hsz);
-
-	/* Chop up message */
-	fragm_crs = INT_H_SIZE + hsz;
-	fragm_rest = fragm_sz - hsz;
-
-	do {		/* For all sections */
-		u32 sz;
-
-		if (!sect_rest) {
-			sect_rest = msg_sect[++curr_sect].iov_len;
-			sect_crs = msg_sect[curr_sect].iov_base;
-		}
-
-		if (sect_rest < fragm_rest)
-			sz = sect_rest;
-		else
-			sz = fragm_rest;
-
-		if (copy_from_user(buf->data + fragm_crs, sect_crs, sz)) {
-			res = -EFAULT;
-error:
-			kfree_skb_list(buf_chain);
-			return res;
-		}
-		sect_crs += sz;
-		sect_rest -= sz;
-		fragm_crs += sz;
-		fragm_rest -= sz;
-		rest -= sz;
-
-		if (!fragm_rest && rest) {
-
-			/* Initiate new fragment: */
-			if (rest <= fragm_sz) {
-				fragm_sz = rest;
-				msg_set_type(&fragm_hdr, LAST_FRAGMENT);
-			} else {
-				msg_set_type(&fragm_hdr, FRAGMENT);
-			}
-			msg_set_size(&fragm_hdr, fragm_sz + INT_H_SIZE);
-			msg_set_fragm_no(&fragm_hdr, ++fragm_no);
-			prev = buf;
-			buf = tipc_buf_acquire(fragm_sz + INT_H_SIZE);
-			if (!buf) {
-				res = -ENOMEM;
-				goto error;
-			}
-
-			buf->next = NULL;
-			prev->next = buf;
-			skb_copy_to_linear_data(buf, &fragm_hdr, INT_H_SIZE);
-			fragm_crs = INT_H_SIZE;
-			fragm_rest = fragm_sz;
-		}
-	} while (rest > 0);
-
-	/*
-	 * Now we have a buffer chain. Select a link and check
-	 * that packet size is still OK
-	 */
-	node = tipc_node_find(destaddr);
-	if (likely(node)) {
-		tipc_node_lock(node);
-		l_ptr = node->active_links[sender->ref & 1];
-		if (!l_ptr) {
-			tipc_node_unlock(node);
-			goto reject;
-		}
-		if (l_ptr->max_pkt < max_pkt) {
-			sender->max_pkt = l_ptr->max_pkt;
-			tipc_node_unlock(node);
-			kfree_skb_list(buf_chain);
-			goto again;
-		}
-	} else {
-reject:
-		kfree_skb_list(buf_chain);
-		tipc_port_iovec_reject(sender, hdr, msg_sect, len,
-				       TIPC_ERR_NO_NODE);
-		return -ENETUNREACH;
-	}
-
-	/* Append chain of fragments to send queue & send them */
-	l_ptr->long_msg_seq_no++;
-	link_add_chain_to_outqueue(l_ptr, buf_chain, l_ptr->long_msg_seq_no);
-	l_ptr->stats.sent_fragments += fragm_no;
-	l_ptr->stats.sent_fragmented++;
-	tipc_link_push_queue(l_ptr);
-	tipc_node_unlock(node);
-	return dsz;
-}
-
-/*
  * tipc_link_push_packet: Push one unsent packet to the media
  */
 static u32 tipc_link_push_packet(struct tipc_link *l_ptr)