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authorEric Dumazet <eric.dumazet@gmail.com>2009-06-17 22:05:41 -0400
committerDavid S. Miller <davem@davemloft.net>2009-06-18 03:29:12 -0400
commit31e6d363abcd0d05766c82f1a9c905a4c974a199 (patch)
treef2b5c46354d95f91e743ae748b8add0de8bffd17 /net/irda/af_irda.c
parentd3b238a03efd6d644ff93c8b10a1d38a596f2e34 (diff)
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>
Diffstat (limited to 'net/irda/af_irda.c')
-rw-r--r--net/irda/af_irda.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 3eb5bcc75f99..5922febe25c4 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -1762,7 +1762,8 @@ static int irda_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
1762 switch (cmd) { 1762 switch (cmd) {
1763 case TIOCOUTQ: { 1763 case TIOCOUTQ: {
1764 long amount; 1764 long amount;
1765 amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc); 1765
1766 amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
1766 if (amount < 0) 1767 if (amount < 0)
1767 amount = 0; 1768 amount = 0;
1768 if (put_user(amount, (unsigned int __user *)arg)) 1769 if (put_user(amount, (unsigned int __user *)arg))