diff options
| author | Paolo Abeni <pabeni@redhat.com> | 2019-07-03 16:06:55 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-07-03 13:51:54 -0700 |
| commit | 164c51fe82de2265bd6b2aac3aaa45cc92fa28f4 (patch) | |
| tree | cde1061c7041caf5d0a12f4245c0b72adfcea352 | |
| parent | a648a592dc7c20873eb0aee78fa93e869714f42a (diff) | |
| download | linux-164c51fe82de2265bd6b2aac3aaa45cc92fa28f4.tar.bz2 | |
ipv6: use indirect call wrappers for {tcp, udpv6}_{recv, send}msg()
This avoids an indirect call per syscall for common ipv6 transports
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv6/af_inet6.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 4d5ed473f722..ef37e0574f54 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -564,6 +564,8 @@ int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) } EXPORT_SYMBOL(inet6_ioctl); +INDIRECT_CALLABLE_DECLARE(int udpv6_sendmsg(struct sock *, struct msghdr *, + size_t)); int inet6_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) { struct sock *sk = sock->sk; @@ -571,9 +573,12 @@ int inet6_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) if (unlikely(inet_send_prepare(sk))) return -EAGAIN; - return sk->sk_prot->sendmsg(sk, msg, size); + return INDIRECT_CALL_2(sk->sk_prot->sendmsg, tcp_sendmsg, udpv6_sendmsg, + sk, msg, size); } +INDIRECT_CALLABLE_DECLARE(int udpv6_recvmsg(struct sock *, struct msghdr *, + size_t, int, int, int *)); int inet6_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, int flags) { @@ -584,8 +589,9 @@ int inet6_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, if (likely(!(flags & MSG_ERRQUEUE))) sock_rps_record_flow(sk); - err = sk->sk_prot->recvmsg(sk, msg, size, flags & MSG_DONTWAIT, - flags & ~MSG_DONTWAIT, &addr_len); + err = INDIRECT_CALL_2(sk->sk_prot->recvmsg, tcp_recvmsg, udpv6_recvmsg, + sk, msg, size, flags & MSG_DONTWAIT, + flags & ~MSG_DONTWAIT, &addr_len); if (err >= 0) msg->msg_namelen = addr_len; return err; |