Commit 693d03ae authored Apr 07, 2011 by Allan Stephens Committed by Paul Gortmaker Sep 01, 2011

tipc: Remove deferred queue head caching during broadcast message reception

Modifies TIPC's incoming broadcast packet handler so that it no longer
pre-reads information about the deferred packet queue, since the cached
value is unreliable once the associated node lock has been released.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

parent 5d3c488d

net/tipc/bcast.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -467,7 +467,6 @@ void tipc_bclink_recv_pkt(struct sk_buff *buf)
		/* Handle in-sequence broadcast message */

		receive:
		deferred = node->bclink.deferred_head;
		next_in = mod(node->bclink.last_in + 1);
		seqno = msg_seqno(msg);

		@@ -500,6 +499,7 @@ void tipc_bclink_recv_pkt(struct sk_buff *buf)
		}
		buf = NULL;
		tipc_node_lock(node);
		deferred = node->bclink.deferred_head;
		if (deferred && (buf_seqno(deferred) == mod(next_in + 1))) {
		buf = deferred;
		msg = buf_msg(buf);