Messages in this thread | | | Date | Thu, 6 Jul 2023 18:55:13 +0200 | From | Stefano Garzarella <> | Subject | Re: [RFC PATCH v5 09/17] vsock: enable SOCK_SUPPORT_ZC bit |
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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 >
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