[RFC PATCH v2 2/9] virtio/vsock: use 'target' in notify_poll_in, callback

[Arseniy Krasnov]

This callback controls setting of POLLIN,POLLRDNORM output bits of poll()
syscall,but in some cases,it is incorrectly to set it, when socket has
at least 1 bytes of available data. Use 'target' which is already exists
and equal to sk_rcvlowat in this case.

Signed-off-by: Arseniy Krasnov <AVKrasnov@xxxxxxxxxxxxxx>
---
 net/vmw_vsock/virtio_transport_common.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index ec2c2afbf0d0..8f6356ebcdd1 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -634,10 +634,7 @@ virtio_transport_notify_poll_in(struct vsock_sock *vsk,
 				size_t target,
 				bool *data_ready_now)
 {
-	if (vsock_stream_has_data(vsk))
-		*data_ready_now = true;
-	else
-		*data_ready_now = false;
+	*data_ready_now = vsock_stream_has_data(vsk) >= target;
 
 	return 0;
 }
-- 
2.25.1