Commit 39f1ed33 authored by Arseniy Krasnov's avatar Arseniy Krasnov Committed by Paolo Abeni
Browse files

virtio/vsock: check SO_RCVLOWAT before wake up reader 



This adds extra condition to wake up data reader: do it only when number
of readable bytes >= SO_RCVLOWAT. Otherwise, there is no sense to kick
user,because it will wait until SO_RCVLOWAT bytes will be dequeued. This
check is performed in vsock_data_ready().

Signed-off-by: default avatarArseniy Krasnov <AVKrasnov@sberdevices.ru>
Reviewed-by: default avatarStefano Garzarella <sgarzare@redhat.com>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent f2fdcf67

net/vmw_vsock/virtio_transport_common.c

+1 −1
Original line number Diff line number Diff line
@@ -1081,7 +1081,7 @@ virtio_transport_recv_connected(struct sock *sk, 
	switch (le16_to_cpu(pkt->hdr.op)) {

	case VIRTIO_VSOCK_OP_RW:

		virtio_transport_recv_enqueue(vsk, pkt);

		sk->sk_data_ready(sk);

		vsock_data_ready(sk);

		return err;

	case VIRTIO_VSOCK_OP_CREDIT_REQUEST:

		virtio_transport_send_credit_update(vsk);