Commit 693d03ae authored by Allan Stephens's avatar Allan Stephens Committed by Paul Gortmaker
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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: default avatarAllan Stephens <allan.stephens@windriver.com>
Signed-off-by: default avatarPaul 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);