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, 4 insertions, 4 deletions

diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 612dc878e05c..d9f4cc2c7869 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -296,19 +296,19 @@ static void sctp_v4_from_sk(union sctp_addr *addr, struct sock *sk)
 {
         addr->v4.sin_family = AF_INET;
         addr->v4.sin_port = 0;
-        addr->v4.sin_addr.s_addr = inet_sk(sk)->rcv_saddr;
+        addr->v4.sin_addr.s_addr = inet_sk(sk)->inet_rcv_saddr;
 }
 
 /* Initialize sk->sk_rcv_saddr from sctp_addr. */
 static void sctp_v4_to_sk_saddr(union sctp_addr *addr, struct sock *sk)
 {
-        inet_sk(sk)->rcv_saddr = addr->v4.sin_addr.s_addr;
+        inet_sk(sk)->inet_rcv_saddr = addr->v4.sin_addr.s_addr;
 }
 
 /* Initialize sk->sk_daddr from sctp_addr. */
 static void sctp_v4_to_sk_daddr(union sctp_addr *addr, struct sock *sk)
 {
-        inet_sk(sk)->daddr = addr->v4.sin_addr.s_addr;
+        inet_sk(sk)->inet_daddr = addr->v4.sin_addr.s_addr;
 }
 
 /* Initialize a sctp_addr from an address parameter. */
@@ -598,7 +598,7 @@ static struct sock *sctp_v4_create_accept_sk(struct sock *sk,
 
         newinet = inet_sk(newsk);
 
-        newinet->daddr = asoc->peer.primary_addr.v4.sin_addr.s_addr;
+        newinet->inet_daddr = asoc->peer.primary_addr.v4.sin_addr.s_addr;
 
         sk_refcnt_debug_inc(newsk);