inet: rename some inet_sock fields
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>
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 0970e92..4085db9 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -394,7 +394,7 @@
/* Refresh ephemeral port. */
if (!bp->port)
- bp->port = inet_sk(sk)->num;
+ bp->port = inet_sk(sk)->inet_num;
/* Add the address to the bind address list.
* Use GFP_ATOMIC since BHs will be disabled.
@@ -403,7 +403,7 @@
/* Copy back into socket for getsockname() use. */
if (!ret) {
- inet_sk(sk)->sport = htons(inet_sk(sk)->num);
+ inet_sk(sk)->inet_sport = htons(inet_sk(sk)->inet_num);
af->to_sk_saddr(addr, sk);
}
@@ -1115,7 +1115,7 @@
}
/* Initialize sk's dport and daddr for getpeername() */
- inet_sk(sk)->dport = htons(asoc->peer.port);
+ inet_sk(sk)->inet_dport = htons(asoc->peer.port);
af = sctp_get_af_specific(sa_addr->sa.sa_family);
af->to_sk_daddr(sa_addr, sk);
sk->sk_err = 0;
@@ -5851,7 +5851,7 @@
*/
success:
if (!sctp_sk(sk)->bind_hash) {
- inet_sk(sk)->num = snum;
+ inet_sk(sk)->inet_num = snum;
sk_add_bind_node(sk, &pp->owner);
sctp_sk(sk)->bind_hash = pp;
}
@@ -5923,7 +5923,7 @@
if (sctp_autobind(sk))
return -EAGAIN;
} else {
- if (sctp_get_port(sk, inet_sk(sk)->num)) {
+ if (sctp_get_port(sk, inet_sk(sk)->inet_num)) {
sk->sk_state = SCTP_SS_CLOSED;
return -EADDRINUSE;
}
@@ -6094,14 +6094,14 @@
static inline void __sctp_put_port(struct sock *sk)
{
struct sctp_bind_hashbucket *head =
- &sctp_port_hashtable[sctp_phashfn(inet_sk(sk)->num)];
+ &sctp_port_hashtable[sctp_phashfn(inet_sk(sk)->inet_num)];
struct sctp_bind_bucket *pp;
sctp_spin_lock(&head->lock);
pp = sctp_sk(sk)->bind_hash;
__sk_del_bind_node(sk);
sctp_sk(sk)->bind_hash = NULL;
- inet_sk(sk)->num = 0;
+ inet_sk(sk)->inet_num = 0;
sctp_bucket_destroy(pp);
sctp_spin_unlock(&head->lock);
}
@@ -6128,7 +6128,7 @@
/* Initialize a local sockaddr structure to INADDR_ANY. */
af = sctp_sk(sk)->pf->af;
- port = htons(inet_sk(sk)->num);
+ port = htons(inet_sk(sk)->inet_num);
af->inaddr_any(&autoaddr, port);
return sctp_do_bind(sk, &autoaddr, af->sockaddr_len);
@@ -6697,12 +6697,12 @@
/* Initialize sk's sport, dport, rcv_saddr and daddr for
* getsockname() and getpeername()
*/
- newinet->sport = inet->sport;
- newinet->saddr = inet->saddr;
- newinet->rcv_saddr = inet->rcv_saddr;
- newinet->dport = htons(asoc->peer.port);
+ newinet->inet_sport = inet->inet_sport;
+ newinet->inet_saddr = inet->inet_saddr;
+ newinet->inet_rcv_saddr = inet->inet_rcv_saddr;
+ newinet->inet_dport = htons(asoc->peer.port);
newinet->pmtudisc = inet->pmtudisc;
- newinet->id = asoc->next_tsn ^ jiffies;
+ newinet->inet_id = asoc->next_tsn ^ jiffies;
newinet->uc_ttl = inet->uc_ttl;
newinet->mc_loop = 1;
@@ -6741,13 +6741,13 @@
newsp->hmac = NULL;
/* Hook this new socket in to the bind_hash list. */
- head = &sctp_port_hashtable[sctp_phashfn(inet_sk(oldsk)->num)];
+ head = &sctp_port_hashtable[sctp_phashfn(inet_sk(oldsk)->inet_num)];
sctp_local_bh_disable();
sctp_spin_lock(&head->lock);
pp = sctp_sk(oldsk)->bind_hash;
sk_add_bind_node(newsk, &pp->owner);
sctp_sk(newsk)->bind_hash = pp;
- inet_sk(newsk)->num = inet_sk(oldsk)->num;
+ inet_sk(newsk)->inet_num = inet_sk(oldsk)->inet_num;
sctp_spin_unlock(&head->lock);
sctp_local_bh_enable();