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 <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/llc/llc_proc.c b/net/llc/llc_proc.c
index d208b33..f97be47 100644
--- a/net/llc/llc_proc.c
+++ b/net/llc/llc_proc.c
@@ -134,8 +134,8 @@
 	seq_printf(seq, "@%02X ", llc->sap->laddr.lsap);
 	llc_ui_format_mac(seq, llc->daddr.mac);
 	seq_printf(seq, "@%02X %8d %8d %2d %3d %4d\n", llc->daddr.lsap,
-		   atomic_read(&sk->sk_wmem_alloc),
-		   atomic_read(&sk->sk_rmem_alloc) - llc->copied_seq,
+		   sk_wmem_alloc_get(sk),
+		   sk_rmem_alloc_get(sk) - llc->copied_seq,
 		   sk->sk_state,
 		   sk->sk_socket ? SOCK_INODE(sk->sk_socket)->i_uid : -1,
 		   llc->link);