openvswitch: Use flow hash during flow lookup operation.

Flow->hash can be used to detect hash collisions and avoid flow key compare in flow lookup.

Pravin B Shelar committed 13 years ago

Commit 8ddd0941 parent 5eb26b11 file · +1 −1Browse files

Unified · Split

net/openvswitch/flow_table.c+1−1

@@ -421,7 +421,7 @@ static struct sw_flow masked_flow_lookup(struct table_instance ti, · 420 unmodified lines
421	hash = flow_hash(&masked_key, key_start, key_end);	421	hash = flow_hash(&masked_key, key_start, key_end);
422	head = find_bucket(ti, hash);	422	head = find_bucket(ti, hash);
423	hlist_for_each_entry_rcu(flow, head, hash_node[ti->node_ver]) {	423	hlist_for_each_entry_rcu(flow, head, hash_node[ti->node_ver]) {
424	if (flow->mask == mask &&	424	if (flow->mask == mask && flow->hash == hash &&
425	flow_cmp_masked_key(flow, &masked_key,	425	flow_cmp_masked_key(flow, &masked_key,
426	key_start, key_end))	426	key_start, key_end))
427	return flow;	427	return flow;