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>

1 files changed, 15 insertions, 15 deletions

diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index fd737efed96..52ed7d7f9da 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -72,7 +72,7 @@ static struct sock *__raw_v6_lookup(struct net *net, struct sock *sk,
 	int is_multicast = ipv6_addr_is_multicast(loc_addr);
 
 	sk_for_each_from(sk, node)
-		if (inet_sk(sk)->num == num) {
+		if (inet_sk(sk)->inet_num == num) {
 			struct ipv6_pinfo *np = inet6_sk(sk);
 
 			if (!net_eq(sock_net(sk), net))
@@ -298,7 +298,7 @@ static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 			dev_put(dev);
 	}
 
-	inet->rcv_saddr = inet->saddr = v4addr;
+	inet->inet_rcv_saddr = inet->inet_saddr = v4addr;
 	ipv6_addr_copy(&np->rcv_saddr, &addr->sin6_addr);
 	if (!(addr_type & IPV6_ADDR_MULTICAST))
 		ipv6_addr_copy(&np->saddr, &addr->sin6_addr);
@@ -415,14 +415,14 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
 				   skb_network_header_len(skb));
 		if (!csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
 				     &ipv6_hdr(skb)->daddr,
-				     skb->len, inet->num, skb->csum))
+				     skb->len, inet->inet_num, skb->csum))
 			skb->ip_summed = CHECKSUM_UNNECESSARY;
 	}
 	if (!skb_csum_unnecessary(skb))
 		skb->csum = ~csum_unfold(csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
 							 &ipv6_hdr(skb)->daddr,
 							 skb->len,
-							 inet->num, 0));
+							 inet->inet_num, 0));
 
 	if (inet->hdrincl) {
 		if (skb_checksum_complete(skb)) {
@@ -765,8 +765,8 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
 		proto = ntohs(sin6->sin6_port);
 
 		if (!proto)
-			proto = inet->num;
-		else if (proto != inet->num)
+			proto = inet->inet_num;
+		else if (proto != inet->inet_num)
 			return(-EINVAL);
 
 		if (proto > 255)
@@ -799,7 +799,7 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
 		if (sk->sk_state != TCP_ESTABLISHED)
 			return -EDESTADDRREQ;
 
-		proto = inet->num;
+		proto = inet->inet_num;
 		daddr = &np->daddr;
 		fl.fl6_flowlabel = np->flow_label;
 	}
@@ -966,7 +966,7 @@ static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
 
 	switch (optname) {
 		case IPV6_CHECKSUM:
-			if (inet_sk(sk)->num == IPPROTO_ICMPV6 &&
+			if (inet_sk(sk)->inet_num == IPPROTO_ICMPV6 &&
 			    level == IPPROTO_IPV6) {
 				/*
 				 * RFC3542 tells that IPV6_CHECKSUM socket
@@ -1006,7 +1006,7 @@ static int rawv6_setsockopt(struct sock *sk, int level, int optname,
 			break;
 
 		case SOL_ICMPV6:
-			if (inet_sk(sk)->num != IPPROTO_ICMPV6)
+			if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
 				return -EOPNOTSUPP;
 			return rawv6_seticmpfilter(sk, level, optname, optval,
 						   optlen);
@@ -1029,7 +1029,7 @@ static int compat_rawv6_setsockopt(struct sock *sk, int level, int optname,
 	case SOL_RAW:
 		break;
 	case SOL_ICMPV6:
-		if (inet_sk(sk)->num != IPPROTO_ICMPV6)
+		if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
 			return -EOPNOTSUPP;
 		return rawv6_seticmpfilter(sk, level, optname, optval, optlen);
 	case SOL_IPV6:
@@ -1086,7 +1086,7 @@ static int rawv6_getsockopt(struct sock *sk, int level, int optname,
 			break;
 
 		case SOL_ICMPV6:
-			if (inet_sk(sk)->num != IPPROTO_ICMPV6)
+			if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
 				return -EOPNOTSUPP;
 			return rawv6_geticmpfilter(sk, level, optname, optval,
 						   optlen);
@@ -1109,7 +1109,7 @@ static int compat_rawv6_getsockopt(struct sock *sk, int level, int optname,
 	case SOL_RAW:
 		break;
 	case SOL_ICMPV6:
-		if (inet_sk(sk)->num != IPPROTO_ICMPV6)
+		if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
 			return -EOPNOTSUPP;
 		return rawv6_geticmpfilter(sk, level, optname, optval, optlen);
 	case SOL_IPV6:
@@ -1156,7 +1156,7 @@ static int rawv6_ioctl(struct sock *sk, int cmd, unsigned long arg)
 
 static void rawv6_close(struct sock *sk, long timeout)
 {
-	if (inet_sk(sk)->num == IPPROTO_RAW)
+	if (inet_sk(sk)->inet_num == IPPROTO_RAW)
 		ip6_ra_control(sk, -1);
 	ip6mr_sk_done(sk);
 	sk_common_release(sk);
@@ -1175,7 +1175,7 @@ static int rawv6_init_sk(struct sock *sk)
 {
 	struct raw6_sock *rp = raw6_sk(sk);
 
-	switch (inet_sk(sk)->num) {
+	switch (inet_sk(sk)->inet_num) {
 	case IPPROTO_ICMPV6:
 		rp->checksum = 1;
 		rp->offset   = 2;
@@ -1225,7 +1225,7 @@ static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
 	dest  = &np->daddr;
 	src   = &np->rcv_saddr;
 	destp = 0;
-	srcp  = inet_sk(sp)->num;
+	srcp  = inet_sk(sp)->inet_num;
 	seq_printf(seq,
 		   "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
 		   "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n",