net: correct off-by-one write allocations reports

commit 2b85a34e91
(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>
This commit is contained in:
Eric Dumazet
2009-06-17 19:05:41 -07:00
committed by David S. Miller
parent d3b238a03e
commit 31e6d363ab
25 changed files with 58 additions and 51 deletions

View File

@@ -156,10 +156,10 @@ static int inet_csk_diag_fill(struct sock *sk,
r->idiag_inode = sock_i_ino(sk);
if (minfo) {
minfo->idiag_rmem = atomic_read(&sk->sk_rmem_alloc);
minfo->idiag_rmem = sk_rmem_alloc_get(sk);
minfo->idiag_wmem = sk->sk_wmem_queued;
minfo->idiag_fmem = sk->sk_forward_alloc;
minfo->idiag_tmem = atomic_read(&sk->sk_wmem_alloc);
minfo->idiag_tmem = sk_wmem_alloc_get(sk);
}
handler->idiag_get_info(sk, r, info);

View File

@@ -799,7 +799,8 @@ static int raw_ioctl(struct sock *sk, int cmd, unsigned long arg)
{
switch (cmd) {
case SIOCOUTQ: {
int amount = atomic_read(&sk->sk_wmem_alloc);
int amount = sk_wmem_alloc_get(sk);
return put_user(amount, (int __user *)arg);
}
case SIOCINQ: {
@@ -935,8 +936,8 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
seq_printf(seq, "%4d: %08X:%04X %08X:%04X"
" %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n",
i, src, srcp, dest, destp, sp->sk_state,
atomic_read(&sp->sk_wmem_alloc),
atomic_read(&sp->sk_rmem_alloc),
sk_wmem_alloc_get(sp),
sk_rmem_alloc_get(sp),
0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
}

View File

@@ -840,7 +840,8 @@ int udp_ioctl(struct sock *sk, int cmd, unsigned long arg)
switch (cmd) {
case SIOCOUTQ:
{
int amount = atomic_read(&sk->sk_wmem_alloc);
int amount = sk_wmem_alloc_get(sk);
return put_user(amount, (int __user *)arg);
}
@@ -1721,8 +1722,8 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
seq_printf(f, "%4d: %08X:%04X %08X:%04X"
" %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d%n",
bucket, src, srcp, dest, destp, sp->sk_state,
atomic_read(&sp->sk_wmem_alloc),
atomic_read(&sp->sk_rmem_alloc),
sk_wmem_alloc_get(sp),
sk_rmem_alloc_get(sp),
0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
atomic_read(&sp->sk_refcnt), sp,
atomic_read(&sp->sk_drops), len);