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/include/net/ip.h b/include/net/ip.h
index 2f47e54..376adf4 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -240,8 +240,8 @@
* does not change, they drop every other packet in
* a TCP stream using header compression.
*/
- iph->id = (sk && inet_sk(sk)->daddr) ?
- htons(inet_sk(sk)->id++) : 0;
+ iph->id = (sk && inet_sk(sk)->inet_daddr) ?
+ htons(inet_sk(sk)->inet_id++) : 0;
} else
__ip_select_ident(iph, dst, 0);
}
@@ -249,9 +249,9 @@
static inline void ip_select_ident_more(struct iphdr *iph, struct dst_entry *dst, struct sock *sk, int more)
{
if (iph->frag_off & htons(IP_DF)) {
- if (sk && inet_sk(sk)->daddr) {
- iph->id = htons(inet_sk(sk)->id);
- inet_sk(sk)->id += 1 + more;
+ if (sk && inet_sk(sk)->inet_daddr) {
+ iph->id = htons(inet_sk(sk)->inet_id);
+ inet_sk(sk)->inet_id += 1 + more;
} else
iph->id = 0;
} else
@@ -317,7 +317,7 @@
static __inline__ void inet_reset_saddr(struct sock *sk)
{
- inet_sk(sk)->rcv_saddr = inet_sk(sk)->saddr = 0;
+ inet_sk(sk)->inet_rcv_saddr = inet_sk(sk)->inet_saddr = 0;
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
if (sk->sk_family == PF_INET6) {
struct ipv6_pinfo *np = inet6_sk(sk);