diff options
| author | Arseniy Krasnov <avkrasnov@salutedevices.com> | 2023-10-10 21:15:16 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-10-15 14:19:42 +0200 |
| commit | dcc55d7bb23016e7ae335c8558e1937d7a551b35 (patch) | |
| tree | 0a0ab4a42daffea10367a824b0f40f3a2a118205 /net | |
| parent | vsock: check for MSG_ZEROCOPY support on send (diff) | |
| download | linux-dcc55d7bb23016e7ae335c8558e1937d7a551b35.tar.xz linux-dcc55d7bb23016e7ae335c8558e1937d7a551b35.zip | |
vsock: enable SOCK_SUPPORT_ZC bit
This bit is used by io_uring in case of zerocopy tx mode. io_uring code
checks, that socket has this feature. This patch sets it in two places:
1) For socket in 'connect()' call.
2) For new socket which is returned by 'accept()' call.
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/vmw_vsock/af_vsock.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 71108b1f0dfc..37b1c0432941 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1406,6 +1406,9 @@ static int vsock_connect(struct socket *sock, struct sockaddr *addr, goto out; } + if (vsock_msgzerocopy_allow(transport)) + set_bit(SOCK_SUPPORT_ZC, &sk->sk_socket->flags); + err = vsock_auto_bind(vsk); if (err) goto out; @@ -1560,6 +1563,9 @@ static int vsock_accept(struct socket *sock, struct socket *newsock, int flags, } else { newsock->state = SS_CONNECTED; sock_graft(connected, newsock); + if (vsock_msgzerocopy_allow(vconnected->transport)) + set_bit(SOCK_SUPPORT_ZC, + &connected->sk_socket->flags); } release_sock(connected); |