From 31e6d363abcd0d05766c82f1a9c905a4c974a199 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 17 Jun 2009 19:05:41 -0700 Subject: net: correct off-by-one write allocations reports commit 2b85a34e911bf483c27cfdd124aeb1605145dc80 (net: No more expensive sock_hold()/sock_put() on each tx) changed initial sk_wmem_alloc value. We need to take into account this offset when reporting sk_wmem_alloc to user, in PROC_FS files or various ioctls (SIOCOUTQ/TIOCOUTQ) Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/decnet/af_decnet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/decnet/af_decnet.c') diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index a5e3a593e472..d351b8db0df5 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -1240,7 +1240,7 @@ static int dn_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) return val; case TIOCOUTQ: - amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc); + amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk); if (amount < 0) amount = 0; err = put_user(amount, (int __user *)arg); -- cgit v1.2.3 From 10e85448019097e4fcfa535f612f51d0d31a34f4 Mon Sep 17 00:00:00 2001 From: Jesper Dangaard Brouer Date: Fri, 26 Jun 2009 10:46:08 +0000 Subject: decnet: Use rcu_barrier() on module unload. The decnet module unloading as been disabled with a '#if 0' statement, because it have had issues. We add a rcu_barrier() anyhow for correctness. The maintainer (Chrissie Caulfield) will look into the unload issue when time permits. Acked-by: Paul E. McKenney Acked-by: Chrissie Caulfield Signed-off-by: Jesper Dangaard Brouer Signed-off-by: David S. Miller --- net/decnet/af_decnet.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net/decnet/af_decnet.c') diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index d351b8db0df5..77d40289653c 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -2413,6 +2413,8 @@ static void __exit decnet_exit(void) proc_net_remove(&init_net, "decnet"); proto_unregister(&dn_proto); + + rcu_barrier_bh(); /* Wait for completion of call_rcu_bh()'s */ } module_exit(decnet_exit); #endif -- cgit v1.2.3