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Commit dc63d91e authored by Allan Stephens's avatar Allan Stephens Committed by Paul Gortmaker
Browse files

tipc: Introduce routine to enqueue a chain of messages on link tx queue 



Create a helper routine to enqueue a chain of sk_buffs to a link's
transmit queue.  It improves readability and the new function is
anticipated to be used more than just once in the future as well.

Signed-off-by: default avatarAllan Stephens <allan.stephens@windriver.com>
Signed-off-by: default avatarPaul Gortmaker <paul.gortmaker@windriver.com>
parent 26896904

net/tipc/link.c

+22 −16
Original line number Diff line number Diff line
@@ -843,6 +843,25 @@ static void link_add_to_outqueue(struct link *l_ptr, 
		l_ptr->stats.max_queue_sz = l_ptr->out_queue_size;

}



static void link_add_chain_to_outqueue(struct link *l_ptr,

				       struct sk_buff *buf_chain,

				       u32 long_msgno)

{

	struct sk_buff *buf;

	struct tipc_msg *msg;



	if (!l_ptr->next_out)

		l_ptr->next_out = buf_chain;

	while (buf_chain) {

		buf = buf_chain;

		buf_chain = buf_chain->next;



		msg = buf_msg(buf);

		msg_set_long_msgno(msg, long_msgno);

		link_add_to_outqueue(l_ptr, buf, msg);

	}

}



/*

 * tipc_link_send_buf() is the 'full path' for messages, called from

 * inside TIPC when the 'fast path' in tipc_send_buf
@@ -1276,25 +1295,12 @@ static int link_send_sections_long(struct tipc_port *sender, 
						 total_len, TIPC_ERR_NO_NODE);

	}



	/* Append whole chain to send queue: */

	/* Append chain of fragments to send queue & send them */



	buf = buf_chain;

	l_ptr->long_msg_seq_no++;

	if (!l_ptr->next_out)

		l_ptr->next_out = buf_chain;

	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++;

	while (buf) {

		struct sk_buff *next = buf->next;

		struct tipc_msg *msg = buf_msg(buf);



		l_ptr->stats.sent_fragments++;

		msg_set_long_msgno(msg, l_ptr->long_msg_seq_no);

		link_add_to_outqueue(l_ptr, buf, msg);

		buf = next;

	}



	/* Send it, if possible: */



	tipc_link_push_queue(l_ptr);

	tipc_node_unlock(node);

	return dsz;