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inet: rename some inet_sock fields

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In order to have better cache layouts of struct sock (separate zones
for rx/tx paths), we need this preliminary patch.

Goal is to transfert fields used at lookup time in the first
read-mostly cache line (inside struct sock_common) and move sk_refcnt
to a separate cache line (only written by rx path)

This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr,
sport and id fields. This allows a future patch to define these
fields as macros, like sk_refcnt, without name clashes.

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 2009-10-15 06:30:45 +00:00 • committed by David S. Miller
parent 988ade6b8e
commit c720c7e838
47 changed files with 408 additions and 388 deletions
Download patch file Download diff file Expand all files Collapse all files

30
net/ipv4/raw.c
View file

@ -87,7 +87,7 @@ void raw_hash_sk(struct sock *sk)
struct raw_hashinfo *h = sk->sk_prot->h.raw_hash;
struct hlist_head *head;
head = &h->ht[inet_sk(sk)->num & (RAW_HTABLE_SIZE - 1)];
head = &h->ht[inet_sk(sk)->inet_num & (RAW_HTABLE_SIZE - 1)];
write_lock_bh(&h->lock);
sk_add_node(sk, head);
@ -115,9 +115,9 @@ static struct sock *__raw_v4_lookup(struct net *net, struct sock *sk,
sk_for_each_from(sk, node) {
struct inet_sock *inet = inet_sk(sk);
if (net_eq(sock_net(sk), net) && inet->num == num &&
!(inet->daddr && inet->daddr != raddr) &&
!(inet->rcv_saddr && inet->rcv_saddr != laddr) &&
if (net_eq(sock_net(sk), net) && inet->inet_num == num &&
!(inet->inet_daddr && inet->inet_daddr != raddr) &&
!(inet->inet_rcv_saddr && inet->inet_rcv_saddr != laddr) &&
!(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif))
goto found; /* gotcha */
}
@ -326,7 +326,7 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
int err;
if (length > rt->u.dst.dev->mtu) {
ip_local_error(sk, EMSGSIZE, rt->rt_dst, inet->dport,
ip_local_error(sk, EMSGSIZE, rt->rt_dst, inet->inet_dport,
rt->u.dst.dev->mtu);
return -EMSGSIZE;
}
@ -489,10 +489,10 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
err = -EDESTADDRREQ;
if (sk->sk_state != TCP_ESTABLISHED)
goto out;
daddr = inet->daddr;
daddr = inet->inet_daddr;
}
ipc.addr = inet->saddr;
ipc.addr = inet->inet_saddr;
ipc.opt = NULL;
ipc.shtx.flags = 0;
ipc.oif = sk->sk_bound_dev_if;
@ -634,9 +634,9 @@ static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
if (addr->sin_addr.s_addr && chk_addr_ret != RTN_LOCAL &&
chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST)
goto out;
inet->rcv_saddr = inet->saddr = addr->sin_addr.s_addr;
inet->inet_rcv_saddr = inet->inet_saddr = addr->sin_addr.s_addr;
if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST)
inet->saddr = 0; /* Use device */
inet->inet_saddr = 0; /* Use device */
sk_dst_reset(sk);
ret = 0;
out: return ret;
@ -706,7 +706,7 @@ static int raw_init(struct sock *sk)
{
struct raw_sock *rp = raw_sk(sk);
if (inet_sk(sk)->num == IPPROTO_ICMP)
if (inet_sk(sk)->inet_num == IPPROTO_ICMP)
memset(&rp->filter, 0, sizeof(rp->filter));
return 0;
}
@ -743,7 +743,7 @@ static int do_raw_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen)
{
if (optname == ICMP_FILTER) {
if (inet_sk(sk)->num != IPPROTO_ICMP)
if (inet_sk(sk)->inet_num != IPPROTO_ICMP)
return -EOPNOTSUPP;
else
return raw_seticmpfilter(sk, optval, optlen);
@ -773,7 +773,7 @@ static int do_raw_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
if (optname == ICMP_FILTER) {
if (inet_sk(sk)->num != IPPROTO_ICMP)
if (inet_sk(sk)->inet_num != IPPROTO_ICMP)
return -EOPNOTSUPP;
else
return raw_geticmpfilter(sk, optval, optlen);
@ -932,10 +932,10 @@ EXPORT_SYMBOL_GPL(raw_seq_stop);
static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
{
struct inet_sock *inet = inet_sk(sp);
__be32 dest = inet->daddr,
src = inet->rcv_saddr;
__be32 dest = inet->inet_daddr,
src = inet->inet_rcv_saddr;
__u16 destp = 0,
srcp = inet->num;
srcp = inet->inet_num;
seq_printf(seq, "%4d: %08X:%04X %08X:%04X"
" %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n",