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vsock/loopback: support MSG_ZEROCOPY for transport

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Add 'msgzerocopy_allow()' callback for loopback transport.

Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arseniy Krasnov 2023-10-10 22:15:19 +03:00 committed by David S. Miller
parent e2fcc326b4
commit cfdca39046
1 changed files with 6 additions and 0 deletions
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6
net/vmw_vsock/vsock_loopback.c
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@ -47,6 +47,10 @@ static int vsock_loopback_cancel_pkt(struct vsock_sock *vsk)
}
static bool vsock_loopback_seqpacket_allow(u32 remote_cid);
static bool vsock_loopback_msgzerocopy_allow(void)
{
return true;
}
static struct virtio_transport loopback_transport = {
.transport = {
@ -79,6 +83,8 @@ static struct virtio_transport loopback_transport = {
.seqpacket_allow = vsock_loopback_seqpacket_allow,
.seqpacket_has_data = virtio_transport_seqpacket_has_data,
.msgzerocopy_allow = vsock_loopback_msgzerocopy_allow,
.notify_poll_in = virtio_transport_notify_poll_in,
.notify_poll_out = virtio_transport_notify_poll_out,
.notify_recv_init = virtio_transport_notify_recv_init,