| Message ID | 20230701063947.3422088-10-AVKrasnov@sberdevices.ru (mailing list archive) |
|---|---|
| State | RFC |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | vsock: MSG_ZEROCOPY flag support | expand |
On Sat, Jul 01, 2023 at 09:39:39AM +0300, Arseniy Krasnov wrote: >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@sberdevices.ru> >--- > net/vmw_vsock/af_vsock.c | 6 ++++++ > 1 file changed, 6 insertions(+) Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> > >diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c >index 033006e1b5ad..da22ae0ef477 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); >-- >2.25.1 >
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 033006e1b5ad..da22ae0ef477 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);
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@sberdevices.ru> --- net/vmw_vsock/af_vsock.c | 6 ++++++ 1 file changed, 6 insertions(+)