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, 6 insertions, 5 deletions

diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
index 59f5b5e7c56..7a3cc2ffad8 100644
--- a/net/ipv4/tcp_probe.c
+++ b/net/ipv4/tcp_probe.c
@@ -94,7 +94,8 @@ static int jtcp_rcv_established(struct sock *sk, struct sk_buff *skb,
         const struct inet_sock *inet = inet_sk(sk);
 
         /* Only update if port matches */
-        if ((port == 0 || ntohs(inet->dport) == port || ntohs(inet->sport) == port)
+        if ((port == 0 || ntohs(inet->inet_dport) == port ||
+             ntohs(inet->inet_sport) == port)
             && (full || tp->snd_cwnd != tcp_probe.lastcwnd)) {
 
                 spin_lock(&tcp_probe.lock);
@@ -103,10 +104,10 @@ static int jtcp_rcv_established(struct sock *sk, struct sk_buff *skb,
                         struct tcp_log *p = tcp_probe.log + tcp_probe.head;
 
                         p->tstamp = ktime_get();
-                        p->saddr = inet->saddr;
-                        p->sport = inet->sport;
-                        p->daddr = inet->daddr;
-                        p->dport = inet->dport;
+                        p->saddr = inet->inet_saddr;
+                        p->sport = inet->inet_sport;
+                        p->daddr = inet->inet_daddr;
+                        p->dport = inet->inet_dport;
                         p->length = skb->len;
                         p->snd_nxt = tp->snd_nxt;
                         p->snd_una = tp->snd_una;