inet: move ir_mark to fill a hole
On 64bit arches, we can save 8 bytes in inet_request_sock
by moving ir_mark to fill a hole.
While we are at it, inet_request_mark() can get a const qualifier
for listener socket.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 3d8c09a..c9ed918 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -94,11 +94,11 @@
acked : 1,
no_srccheck: 1;
kmemcheck_bitfield_end(flags);
+ u32 ir_mark;
union {
struct ip_options_rcu *opt;
struct sk_buff *pktopts;
};
- u32 ir_mark;
};
static inline struct inet_request_sock *inet_rsk(const struct request_sock *sk)
@@ -106,13 +106,12 @@
return (struct inet_request_sock *)sk;
}
-static inline u32 inet_request_mark(struct sock *sk, struct sk_buff *skb)
+static inline u32 inet_request_mark(const struct sock *sk, struct sk_buff *skb)
{
- if (!sk->sk_mark && sock_net(sk)->ipv4.sysctl_tcp_fwmark_accept) {
+ if (!sk->sk_mark && sock_net(sk)->ipv4.sysctl_tcp_fwmark_accept)
return skb->mark;
- } else {
- return sk->sk_mark;
- }
+
+ return sk->sk_mark;
}
struct inet_cork {