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tipc: Remove deferred queue head caching during broadcast message reception

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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>
This commit is contained in:
Allan Stephens 2011-04-07 14:20:45 -04:00 committed by Paul Gortmaker
parent 5d3c488dfe
commit 693d03ae3c
1 changed files with 1 additions and 1 deletions
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2
net/tipc/bcast.c
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@ -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 @@ receive:
}
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);