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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-23 19:55:50 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-23 19:55:50 +0300 |
| commit | 942e01ab90151a16b79b5c0cb8e77530d1ee3dbb (patch) | |
| tree | d703a4ca1471314aff9aa3092c2681099f8dfe3d /net | |
| parent | d47136c2801540e80f41ec7e063d8d592568ad76 (diff) | |
| parent | cc767e7c6913f770741d9fad1efa4957c2623744 (diff) | |
| download | linux-942e01ab90151a16b79b5c0cb8e77530d1ee3dbb.tar.xz | |
Merge tag 'io_uring-6.1-2022-10-22' of git://git.kernel.dk/linux
Pull io_uring follow-up from Jens Axboe:
"Currently the zero-copy has automatic fallback to normal transmit, and
it was decided that it'd be cleaner to return an error instead if the
socket type doesn't support it.
Zero-copy does work with UDP and TCP, it's more of a future proofing
kind of thing (eg for samba)"
* tag 'io_uring-6.1-2022-10-22' of git://git.kernel.dk/linux:
io_uring/net: fail zc sendmsg when unsupported by socket
io_uring/net: fail zc send when unsupported by socket
net: flag sockets supporting msghdr originated zerocopy
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/tcp.c | 1 | ||||
| -rw-r--r-- | net/ipv4/udp.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index f8232811a5be..ef14efa1fb70 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -457,6 +457,7 @@ void tcp_init_sock(struct sock *sk) WRITE_ONCE(sk->sk_sndbuf, READ_ONCE(sock_net(sk)->ipv4.sysctl_tcp_wmem[1])); WRITE_ONCE(sk->sk_rcvbuf, READ_ONCE(sock_net(sk)->ipv4.sysctl_tcp_rmem[1])); + set_bit(SOCK_SUPPORT_ZC, &sk->sk_socket->flags); sk_sockets_allocated_inc(sk); } EXPORT_SYMBOL(tcp_init_sock); diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index c83e5271030b..6a320a614e54 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -1624,6 +1624,7 @@ int udp_init_sock(struct sock *sk) { skb_queue_head_init(&udp_sk(sk)->reader_queue); sk->sk_destruct = udp_destruct_sock; + set_bit(SOCK_SUPPORT_ZC, &sk->sk_socket->flags); return 0; } |