AcoSail/kernel_optimize_test
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batman-adv: orig_hash_find() manages rcu_lock/unlock internally

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orig_hash_find() manages rcu_lock/unlock internally and doesn't need to
be surrounded by rcu_read_lock() / rcu_read_unlock() anymore

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Acked-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
This commit is contained in:
Antonio Quartulli 2011-04-16 11:30:57 +02:00 committed by Sven Eckelmann
parent af20b71047
commit b5a6f69c5c
1 changed files with 2 additions and 14 deletions
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16
net/batman-adv/routing.c
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@ -1310,13 +1310,10 @@ int route_unicast_packet(struct sk_buff *skb, struct hard_iface *recv_if)
}
/* get routing information */
rcu_read_lock();
orig_node = orig_hash_find(bat_priv, unicast_packet->dest);
if (!orig_node)
goto unlock;
rcu_read_unlock();
goto out;
/* find_router() increases neigh_nodes refcount if found. */
neigh_node = find_router(bat_priv, orig_node, recv_if);
@ -1362,10 +1359,7 @@ int route_unicast_packet(struct sk_buff *skb, struct hard_iface *recv_if)
/* route it */
send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
ret = NET_RX_SUCCESS;
goto out;
unlock:
rcu_read_unlock();
out:
if (neigh_node)
neigh_node_free_ref(neigh_node);
@ -1464,13 +1458,10 @@ int recv_bcast_packet(struct sk_buff *skb, struct hard_iface *recv_if)
if (bcast_packet->ttl < 2)
goto out;
rcu_read_lock();
orig_node = orig_hash_find(bat_priv, bcast_packet->orig);
if (!orig_node)
goto rcu_unlock;
rcu_read_unlock();
goto out;
spin_lock_bh(&orig_node->bcast_seqno_lock);
@ -1501,9 +1492,6 @@ int recv_bcast_packet(struct sk_buff *skb, struct hard_iface *recv_if)
ret = NET_RX_SUCCESS;
goto out;
rcu_unlock:
rcu_read_unlock();
goto out;
spin_unlock:
spin_unlock_bh(&orig_node->bcast_seqno_lock);
out: