tipc: Optimize routing of returned payload messages (017dac31) · Commits · 戴 / test

Reduces the work involved in transmitting a returned payload message by doing only the work necessary to route such a message directly to the specified destination port, rather than invoking the code used to route an arbitrary message to an arbitrary destination. Signed-off-by:

Allan Stephens <allan.stephens@windriver.com> Signed-off-by:

Paul Gortmaker <paul.gortmaker@windriver.com>

net/tipc/port.c

+6 −1

Original line number	Diff line number	Diff line
		@@ -360,6 +360,7 @@ int tipc_reject_msg(struct sk_buff *buf, u32 err)
		int hdr_sz;
		u32 imp = msg_importance(msg);
		u32 data_sz = msg_data_sz(msg);
		u32 src_node;

		if (data_sz > MAX_REJECT_SIZE)
		data_sz = MAX_REJECT_SIZE;
		@@ -416,7 +417,11 @@ int tipc_reject_msg(struct sk_buff *buf, u32 err)

		/* send returned message & dispose of rejected message */

		tipc_net_route_msg(rbuf);
		src_node = msg_prevnode(msg);
		if (src_node == tipc_own_addr)
		tipc_port_recv_msg(rbuf);
		else
		tipc_link_send(rbuf, src_node, msg_link_selector(rmsg));
		exit:
		buf_discard(buf);
		return data_sz;

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