Commit e061aed9 authored by Arseniy Krasnov's avatar Arseniy Krasnov Committed by Paolo Abeni
Browse files

vmci/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 avatarVishnu Dasa <vdasa@vmware.com>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 39f1ed33

net/vmw_vsock/vmci_transport_notify.c

+1 −1
Original line number Diff line number Diff line
@@ -307,7 +307,7 @@ vmci_transport_handle_wrote(struct sock *sk, 
	struct vsock_sock *vsk = vsock_sk(sk);

	PKT_FIELD(vsk, sent_waiting_read) = false;

#endif

	sk->sk_data_ready(sk);

	vsock_data_ready(sk);

}



static void vmci_transport_notify_pkt_socket_init(struct sock *sk)

net/vmw_vsock/vmci_transport_notify_qstate.c

+2 −2
Original line number Diff line number Diff line
@@ -84,7 +84,7 @@ vmci_transport_handle_wrote(struct sock *sk, 
			    bool bottom_half,

			    struct sockaddr_vm *dst, struct sockaddr_vm *src)

{

	sk->sk_data_ready(sk);

	vsock_data_ready(sk);

}



static void vsock_block_update_write_window(struct sock *sk)
@@ -282,7 +282,7 @@ vmci_transport_notify_pkt_recv_post_dequeue( 
		/* See the comment in

		 * vmci_transport_notify_pkt_send_post_enqueue().

		 */

		sk->sk_data_ready(sk);

		vsock_data_ready(sk);

	}



	return err;