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tipc: Optimize routing of returned payload messages 

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>
This commit is contained in:
Allan Stephens 2011-05-24 13:20:09 -04:00 committed by Paul Gortmaker
parent 76d12527f7
commit 017dac31dc
1 changed files with 6 additions and 1 deletions
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7
net/tipc/port.c
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@ -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;