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udp: use indirect call wrapper for data ready() 

In most cases UDP sockets use the default data ready callback.
Leverage the indirect call wrapper for such callback to avoid an
indirect call in fastpath.

The above gives small but measurable performance gain under UDP flood.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/d47d53e6f8ee7a11228ca2f025d6243cc04b77f3.1689691004.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Paolo Abeni 2023-07-18 16:38:09 +02:00 committed by Jakub Kicinski
parent 5dd2b6faaa
commit 0558e16745
1 changed files with 1 additions and 1 deletions
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2
net/ipv4/udp.c
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@ -1553,7 +1553,7 @@ int __udp_enqueue_schedule_skb(struct sock *sk, struct sk_buff *skb)
spin_unlock(&list->lock);
if (!sock_flag(sk, SOCK_DEAD))
sk->sk_data_ready(sk);
INDIRECT_CALL_1(sk->sk_data_ready, sock_def_readable, sk);
busylock_release(busy);
return 0;