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Subject[PATCH net-next v2 02/10] udp6: shuffle up->pending AF_INET bits
Date
Corked AF_INET for ipv6 socket doesn't appear to be the hottest case,
so move it out of the common path under up->pending check to remove
overhead.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
net/ipv6/udp.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 528b81ef19c9..e221a6957b1f 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1363,9 +1363,6 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
}
}

- if (up->pending == AF_INET)
- return udp_sendmsg(sk, msg, len);
-
/* Rough check on arithmetic overflow,
better check is made in ip6_append_data().
*/
@@ -1374,6 +1371,8 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)

getfrag = is_udplite ? udplite_getfrag : ip_generic_getfrag;
if (up->pending) {
+ if (up->pending == AF_INET)
+ return udp_sendmsg(sk, msg, len);
/*
* There are pending frames.
* The socket lock must be held while it's corked.
--
2.34.1
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