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[PATCH 1/7 net-2.6.26] [TIPC]: Skip connection flow control in connectionless sockets

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From: Allan Stephens <allan.stephens@...>
To: David Miller <davem@...>
Cc: <netdev@...>, <allan.stephens@...>
Subject: [PATCH 1/7 net-2.6.26] [TIPC]: Skip connection flow control in connectionless sockets
Date: Monday, April 14, 2008 - 5:16 pm

This patch optimizes the receive path for SOCK_DGRAM and SOCK_RDM
messages by skipping over code that handles connection-based flow
control.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
---
 net/tipc/socket.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index ca6f52f..91aa2dc 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -919,7 +919,8 @@ restart:
 	/* Consume received message (optional) */
 
 	if (likely(!(flags & MSG_PEEK))) {
-		if (unlikely(++tsock->p->conn_unacked >= TIPC_FLOW_CONTROL_WIN))
+		if ((sock->state != SS_READY) &&
+		    (++tsock->p->conn_unacked >= TIPC_FLOW_CONTROL_WIN))
 			tipc_acknowledge(tsock->p->ref, tsock->p->conn_unacked);
 		advance_queue(tsock);
 	}
-- 
1.5.3.2

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Messages in current thread:
[PATCH 0/7 net-2.6.26] [TIPC]: More socket code enhancements, Allan Stephens, (Mon Apr 14, 5:16 pm)
Re: [PATCH 0/7 net-2.6.26] [TIPC]: More socket code enhancem..., David Miller, (Tue Apr 15, 3:23 am)
[PATCH 6/7 net-2.6.26] [TIPC]: Cosmetic changes to TIPC conn..., Allan Stephens, (Mon Apr 14, 5:16 pm)
[PATCH 5/7 net-2.6.26] [TIPC]: Add error check to detect non..., Allan Stephens, (Mon Apr 14, 5:16 pm)
[PATCH 4/7 net-2.6.26] [TIPC]: Correct "off by 1" error in s..., Allan Stephens, (Mon Apr 14, 5:16 pm)
[PATCH 7/7 net-2.6.26] [TIPC]: Overhaul of socket locking lo..., Allan Stephens, (Mon Apr 14, 5:16 pm)
[PATCH 3/7 net-2.6.26] [TIPC]: Ignore message padding when r..., Allan Stephens, (Mon Apr 14, 5:16 pm)
[PATCH 1/7 net-2.6.26] [TIPC]: Skip connection flow control ..., Allan Stephens, (Mon Apr 14, 5:16 pm)
[PATCH 2/7 net-2.6.26] [TIPC]: Allow stream receive to read ..., Allan Stephens, (Mon Apr 14, 5:16 pm)