diff options
| author |   Eric Dumazet <edumazet@google.com> | 2021-10-25 09:48:17 -0700 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2021-10-25 18:02:12 -0700 |
| commit | ef57c1610dd8fba5031bf71e0db73356190de151 (patch) | |
| tree | 5ca9d14c1c8762c7e15fae0720d088d36661aac8 /net/ipv6 | |
| parent | tcp: move inet->rx_dst_ifindex to sk->sk_rx_dst_ifindex (diff) | |
| download | linux-dev-ef57c1610dd8fba5031bf71e0db73356190de151.tar.xz linux-dev-ef57c1610dd8fba5031bf71e0db73356190de151.zip | |
ipv6: move inet6_sk(sk)->rx_dst_cookie to sk->sk_rx_dst_cookie
Increase cache locality by moving rx_dst_coookie next to sk->sk_rx_dst
This removes one or two cache line misses in IPv6 early demux (TCP/UDP)
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/tcp_ipv6.c | 6 | ||||
| -rw-r--r-- | net/ipv6/udp.c | 4 |
2 files changed, 5 insertions, 5 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 3e8669b6d636..50d9578e945b 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -109,7 +109,7 @@ static void inet6_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb) sk->sk_rx_dst = dst; sk->sk_rx_dst_ifindex = skb->skb_iif; - tcp_inet6_sk(sk)->rx_dst_cookie = rt6_get_cookie(rt); + sk->sk_rx_dst_cookie = rt6_get_cookie(rt); } } @@ -1511,7 +1511,7 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb) if (dst) { if (sk->sk_rx_dst_ifindex != skb->skb_iif || INDIRECT_CALL_1(dst->ops->check, ip6_dst_check, - dst, np->rx_dst_cookie) == NULL) { + dst, sk->sk_rx_dst_cookie) == NULL) { dst_release(dst); sk->sk_rx_dst = NULL; } @@ -1872,7 +1872,7 @@ INDIRECT_CALLABLE_SCOPE void tcp_v6_early_demux(struct sk_buff *skb) struct dst_entry *dst = READ_ONCE(sk->sk_rx_dst); if (dst) - dst = dst_check(dst, tcp_inet6_sk(sk)->rx_dst_cookie); + dst = dst_check(dst, sk->sk_rx_dst_cookie); if (dst && sk->sk_rx_dst_ifindex == skb->skb_iif) skb_dst_set_noref(skb, dst); diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 8d785232b479..14a94cddcf0b 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -884,7 +884,7 @@ static void udp6_sk_rx_dst_set(struct sock *sk, struct dst_entry *dst) if (udp_sk_rx_dst_set(sk, dst)) { const struct rt6_info *rt = (const struct rt6_info *)dst; - inet6_sk(sk)->rx_dst_cookie = rt6_get_cookie(rt); + sk->sk_rx_dst_cookie = rt6_get_cookie(rt); } } @@ -1073,7 +1073,7 @@ INDIRECT_CALLABLE_SCOPE void udp_v6_early_demux(struct sk_buff *skb) dst = READ_ONCE(sk->sk_rx_dst); if (dst) - dst = dst_check(dst, inet6_sk(sk)->rx_dst_cookie); + dst = dst_check(dst, sk->sk_rx_dst_cookie); if (dst) { /* set noref for now. * any place which wants to hold dst has to call |