[IPV4/IPV6]: Replace spin_lock_irq with spin_lock_bh

In light of my recent patch to net/ipv4/udp.c that replaced the
spin_lock_irq calls on the receive queue lock with spin_lock_bh,
here is a similar patch for all other occurences of spin_lock_irq
on receive/error queue locks in IPv4 and IPv6.

In these stacks, we know that they can only be entered from user
or softirq context.  Therefore it's safe to disable BH only.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 3 deletions

diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 47012b93cad2..f8b172f89811 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -360,14 +360,14 @@ int ip_recv_error(struct sock *sk, struct msghdr *msg, int len)
         err = copied;
 
         /* Reset and regenerate socket error */
-        spin_lock_irq(&sk->sk_error_queue.lock);
+        spin_lock_bh(&sk->sk_error_queue.lock);
         sk->sk_err = 0;
         if ((skb2 = skb_peek(&sk->sk_error_queue)) != NULL) {
                 sk->sk_err = SKB_EXT_ERR(skb2)->ee.ee_errno;
-                spin_unlock_irq(&sk->sk_error_queue.lock);
+                spin_unlock_bh(&sk->sk_error_queue.lock);
                 sk->sk_error_report(sk);
         } else
-                spin_unlock_irq(&sk->sk_error_queue.lock);
+                spin_unlock_bh(&sk->sk_error_queue.lock);
 
 out_free_skb:   
         kfree_skb(skb);