diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2023-05-15 17:06:36 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-05-17 08:37:54 +0100 |
| commit | eea96a3e2c909a055005ac65dde356b36cabc4ed (patch) | |
| tree | 6a6cbb1c04d7e0c8a1ade0856567122a8bdf94c1 /net | |
| parent | 833e24aeb4d9a4803af3b836464df01293ce9041 (diff) | |
net/tcp: don't peek at tail for io_uring zc
Move tcp_write_queue_tail() to SOCK_ZEROCOPY specific flag as zerocopy
setup for msghdr->ubuf_info doesn't need to peek into the last request.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/tcp.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 4d6392c16b7a..40f591f7fce1 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1229,13 +1229,12 @@ int tcp_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t size) flags = msg->msg_flags; if ((flags & MSG_ZEROCOPY) && size) { - skb = tcp_write_queue_tail(sk); - if (msg->msg_ubuf) { uarg = msg->msg_ubuf; net_zcopy_get(uarg); zc = sk->sk_route_caps & NETIF_F_SG; } else if (sock_flag(sk, SOCK_ZEROCOPY)) { + skb = tcp_write_queue_tail(sk); uarg = msg_zerocopy_realloc(sk, size, skb_zcopy(skb)); if (!uarg) { err = -ENOBUFS; |