Commit 6f24080e authored by Paolo Abeni's avatar Paolo Abeni Committed by David S. Miller

ipv4: use indirect call wrappers for {tcp, udp}_{recv, send}msg()

This avoids an indirect call per syscall for common ipv4 transports

v1 -> v2:
 - avoid unneeded reclaration for udp_sendmsg, as suggested by Willem
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 164c51fe
......@@ -804,7 +804,8 @@ int inet_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, udp_sendmsg,
sk, msg, size);
}
EXPORT_SYMBOL(inet_sendmsg);
......@@ -822,6 +823,8 @@ ssize_t inet_sendpage(struct socket *sock, struct page *page, int offset,
}
EXPORT_SYMBOL(inet_sendpage);
INDIRECT_CALLABLE_DECLARE(int udp_recvmsg(struct sock *, struct msghdr *,
size_t, int, int, int *));
int inet_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
int flags)
{
......@@ -832,7 +835,8 @@ int inet_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,
err = INDIRECT_CALL_2(sk->sk_prot->recvmsg, tcp_recvmsg, udp_recvmsg,
sk, msg, size, flags & MSG_DONTWAIT,
flags & ~MSG_DONTWAIT, &addr_len);
if (err >= 0)
msg->msg_namelen = addr_len;
......
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