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| author | Eric Dumazet <edumazet@google.com> | 2023-09-12 09:17:27 +0000 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2023-09-14 16:16:36 +0200 |
| commit | ac9a7f4ce5dda1472e8f44096f33066c6ec1a3b4 (patch) | |
| tree | 70a7b9065ac78d7a5825886380984469fab4ca28 /include/net/udp_tunnel.h | |
| parent | f5f52f0884a595ff99ab1a608643fe4025fca2d5 (diff) | |
| download | linux-ac9a7f4ce5dda1472e8f44096f33066c6ec1a3b4.tar.gz linux-ac9a7f4ce5dda1472e8f44096f33066c6ec1a3b4.tar.bz2 linux-ac9a7f4ce5dda1472e8f44096f33066c6ec1a3b4.zip | |
udp: lockless UDP_ENCAP_L2TPINUDP / UDP_GRO
Move udp->encap_enabled to udp->udp_flags.
Add udp_test_and_set_bit() helper to allow lockless
udp_tunnel_encap_enable() implementation.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'include/net/udp_tunnel.h')
| -rw-r--r-- | include/net/udp_tunnel.h | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h index 0ca9b7a11baf..29251c3519cf 100644 --- a/include/net/udp_tunnel.h +++ b/include/net/udp_tunnel.h @@ -174,16 +174,13 @@ static inline int udp_tunnel_handle_offloads(struct sk_buff *skb, bool udp_csum) } #endif -static inline void udp_tunnel_encap_enable(struct socket *sock) +static inline void udp_tunnel_encap_enable(struct sock *sk) { - struct udp_sock *up = udp_sk(sock->sk); - - if (up->encap_enabled) + if (udp_test_and_set_bit(ENCAP_ENABLED, sk)) return; - up->encap_enabled = 1; #if IS_ENABLED(CONFIG_IPV6) - if (sock->sk->sk_family == PF_INET6) + if (READ_ONCE(sk->sk_family) == PF_INET6) ipv6_stub->udpv6_encap_enable(); #endif udp_encap_enable(); |