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net: correct off-by-one write allocations reports

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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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
net/appletalk/atalk_proc.c
View File

@ -204,8 +204,8 @@ static int atalk_seq_socket_show(struct seq_file *seq, void *v)
"%02X %d\n",
s->sk_type, ntohs(at->src_net), at->src_node, at->src_port,
ntohs(at->dest_net), at->dest_node, at->dest_port,
atomic_read(&s->sk_wmem_alloc),
atomic_read(&s->sk_rmem_alloc),
sk_wmem_alloc_get(s),
sk_rmem_alloc_get(s),
s->sk_state, SOCK_INODE(s->sk_socket)->i_uid);
out:
return 0;

3
net/appletalk/ddp.c
View File

@ -1748,8 +1748,7 @@ static int atalk_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
switch (cmd) {
/* Protocol layer */
case TIOCOUTQ: {
long amount = sk->sk_sndbuf -
atomic_read(&sk->sk_wmem_alloc);
long amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
if (amount < 0)
amount = 0;

11
net/ax25/af_ax25.c
View File

@ -1690,7 +1690,8 @@ static int ax25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
switch (cmd) {
case TIOCOUTQ: {
long amount;
amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
if (amount < 0)
amount = 0;
res = put_user(amount, (int __user *)argp);
@ -1780,8 +1781,8 @@ static int ax25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
ax25_info.idletimer = ax25_display_timer(&ax25->idletimer) / (60 * HZ);
ax25_info.n2count = ax25->n2count;
ax25_info.state = ax25->state;
ax25_info.rcv_q = atomic_read(&sk->sk_rmem_alloc);
ax25_info.snd_q = atomic_read(&sk->sk_wmem_alloc);
ax25_info.rcv_q = sk_wmem_alloc_get(sk);
ax25_info.snd_q = sk_rmem_alloc_get(sk);
ax25_info.vs = ax25->vs;
ax25_info.vr = ax25->vr;
ax25_info.va = ax25->va;
@ -1921,8 +1922,8 @@ static int ax25_info_show(struct seq_file *seq, void *v)
if (ax25->sk != NULL) {
seq_printf(seq, " %d %d %lu\n",
atomic_read(&ax25->sk->sk_wmem_alloc),
atomic_read(&ax25->sk->sk_rmem_alloc),
sk_wmem_alloc_get(ax25->sk),
sk_rmem_alloc_get(ax25->sk),
sock_i_ino(ax25->sk));
} else {
seq_puts(seq, " * * *\n");

2
net/bluetooth/af_bluetooth.c
View File

@ -337,7 +337,7 @@ int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
if (sk->sk_state == BT_LISTEN)
return -EINVAL;
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);

2
net/decnet/af_decnet.c
View File

@ -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);

3
net/ieee802154/dgram.c
View File

@ -126,7 +126,8 @@ static int dgram_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);
}

4
net/ipv4/inet_diag.c
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);

7
net/ipv4/raw.c
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));
}

7
net/ipv4/udp.c
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);

7
net/ipv6/raw.c
View File

@ -1130,7 +1130,8 @@ static int rawv6_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:
@ -1236,8 +1237,8 @@ static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
dest->s6_addr32[0], dest->s6_addr32[1],
dest->s6_addr32[2], dest->s6_addr32[3], 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),

4
net/ipv6/udp.c
View File

@ -1061,8 +1061,8 @@ static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket
dest->s6_addr32[0], dest->s6_addr32[1],
dest->s6_addr32[2], dest->s6_addr32[3], 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),

2
net/ipx/af_ipx.c
View File

@ -1835,7 +1835,7 @@ static int ipx_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
switch (cmd) {
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;
rc = put_user(amount, (int __user *)argp);

4
net/ipx/ipx_proc.c
View File

@ -280,8 +280,8 @@ static int ipx_seq_socket_show(struct seq_file *seq, void *v)
}
seq_printf(seq, "%08X %08X %02X %03d\n",
atomic_read(&s->sk_wmem_alloc),
atomic_read(&s->sk_rmem_alloc),
sk_wmem_alloc_get(s),
sk_rmem_alloc_get(s),
s->sk_state, SOCK_INODE(s->sk_socket)->i_uid);
out:
return 0;

3
net/irda/af_irda.c
View File

@ -1762,7 +1762,8 @@ static int irda_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
switch (cmd) {
case TIOCOUTQ: {
long amount;
amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
if (amount < 0)
amount = 0;
if (put_user(amount, (unsigned int __user *)arg))

4
net/key/af_key.c
View File

@ -3662,8 +3662,8 @@ static int pfkey_seq_show(struct seq_file *f, void *v)
seq_printf(f ,"%p %-6d %-6u %-6u %-6u %-6lu\n",
s,
atomic_read(&s->sk_refcnt),
atomic_read(&s->sk_rmem_alloc),
atomic_read(&s->sk_wmem_alloc),
sk_rmem_alloc_get(s),
sk_wmem_alloc_get(s),
sock_i_uid(s),
sock_i_ino(s)
);

4
net/llc/llc_proc.c
View File

@ -134,8 +134,8 @@ static int llc_seq_socket_show(struct seq_file *seq, void *v)
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);

4
net/netlink/af_netlink.c
View File

@ -1914,8 +1914,8 @@ static int netlink_seq_show(struct seq_file *seq, void *v)
s->sk_protocol,
nlk->pid,
nlk->groups ? (u32)nlk->groups[0] : 0,
atomic_read(&s->sk_rmem_alloc),
atomic_read(&s->sk_wmem_alloc),
sk_rmem_alloc_get(s),
sk_wmem_alloc_get(s),
nlk->cb,
atomic_read(&s->sk_refcnt),
atomic_read(&s->sk_drops)

6
net/netrom/af_netrom.c
View File

@ -1205,7 +1205,7 @@ static int nr_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
long amount;
lock_sock(sk);
amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
if (amount < 0)
amount = 0;
release_sock(sk);
@ -1341,8 +1341,8 @@ static int nr_info_show(struct seq_file *seq, void *v)
nr->n2count,
nr->n2,
nr->window,
atomic_read(&s->sk_wmem_alloc),
atomic_read(&s->sk_rmem_alloc),
sk_wmem_alloc_get(s),
sk_rmem_alloc_get(s),
s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L);
bh_unlock_sock(s);

3
net/packet/af_packet.c
View File

@ -1987,7 +1987,8 @@ static int packet_ioctl(struct socket *sock, unsigned int cmd,
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:

7
net/rose/af_rose.c
View File

@ -1309,7 +1309,8 @@ static int rose_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
switch (cmd) {
case TIOCOUTQ: {
long amount;
amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
if (amount < 0)
amount = 0;
return put_user(amount, (unsigned int __user *) argp);
@ -1480,8 +1481,8 @@ static int rose_info_show(struct seq_file *seq, void *v)
rose->hb / HZ,
ax25_display_timer(&rose->idletimer) / (60 * HZ),
rose->idle / (60 * HZ),
atomic_read(&s->sk_wmem_alloc),
atomic_read(&s->sk_rmem_alloc),
sk_wmem_alloc_get(s),
sk_rmem_alloc_get(s),
s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L);
}

4
net/sched/em_meta.c
View File

@ -349,13 +349,13 @@ META_COLLECTOR(int_sk_type)
META_COLLECTOR(int_sk_rmem_alloc)
{
SKIP_NONLOCAL(skb);
dst->value = atomic_read(&skb->sk->sk_rmem_alloc);
dst->value = sk_rmem_alloc_get(skb->sk);
}
META_COLLECTOR(int_sk_wmem_alloc)
{
SKIP_NONLOCAL(skb);
dst->value = atomic_read(&skb->sk->sk_wmem_alloc);
dst->value = sk_wmem_alloc_get(skb->sk);
}
META_COLLECTOR(int_sk_omem_alloc)

4
net/sctp/socket.c
View File

@ -130,7 +130,7 @@ static inline int sctp_wspace(struct sctp_association *asoc)
if (asoc->ep->sndbuf_policy)
amt = asoc->sndbuf_used;
else
amt = atomic_read(&asoc->base.sk->sk_wmem_alloc);
amt = sk_wmem_alloc_get(asoc->base.sk);
if (amt >= asoc->base.sk->sk_sndbuf) {
if (asoc->base.sk->sk_userlocks & SOCK_SNDBUF_LOCK)
@ -6523,7 +6523,7 @@ static int sctp_writeable(struct sock *sk)
{
int amt = 0;
amt = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
amt = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
if (amt < 0)
amt = 0;
return amt;

2
net/unix/af_unix.c
View File

@ -1946,7 +1946,7 @@ static int unix_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
switch (cmd) {
case SIOCOUTQ:
amount = atomic_read(&sk->sk_wmem_alloc);
amount = sk_wmem_alloc_get(sk);
err = put_user(amount, (int __user *)arg);
break;
case SIOCINQ:

4
net/x25/af_x25.c
View File

@ -1271,8 +1271,8 @@ static int x25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
switch (cmd) {
case TIOCOUTQ: {
int amount = sk->sk_sndbuf -
atomic_read(&sk->sk_wmem_alloc);
int amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
if (amount < 0)
amount = 0;
rc = put_user(amount, (unsigned int __user *)argp);

4
net/x25/x25_proc.c
View File

@ -163,8 +163,8 @@ static int x25_seq_socket_show(struct seq_file *seq, void *v)
devname, x25->lci & 0x0FFF, x25->state, x25->vs, x25->vr,
x25->va, x25_display_timer(s) / HZ, x25->t2 / HZ,
x25->t21 / HZ, x25->t22 / HZ, x25->t23 / HZ,
atomic_read(&s->sk_wmem_alloc),
atomic_read(&s->sk_rmem_alloc),
sk_wmem_alloc_get(s),
sk_rmem_alloc_get(s),
s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L);
out:
return 0;