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Date: Thu, 14 May 2020 14:50:58 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Stefano Garzarella <sgarzare@...hat.com>,
"David S . Miller" <davem@...emloft.net>,
Sasha Levin <sashal@...nel.org>, kvm@...r.kernel.org,
virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 5.6 13/62] vhost/vsock: fix packet delivery order to monitoring devices
From: Stefano Garzarella <sgarzare@...hat.com>
[ Upstream commit 107bc0766b9feb5113074c753735a3f115c2141f ]
We want to deliver packets to monitoring devices before it is
put in the virtqueue, to avoid that replies can appear in the
packet capture before the transmitted packet.
Signed-off-by: Stefano Garzarella <sgarzare@...hat.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/vhost/vsock.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index bb3f63386b475..53294c2f8cff4 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -181,14 +181,14 @@ vhost_transport_do_send_pkt(struct vhost_vsock *vsock,
break;
}
- vhost_add_used(vq, head, sizeof(pkt->hdr) + payload_len);
- added = true;
-
- /* Deliver to monitoring devices all correctly transmitted
- * packets.
+ /* Deliver to monitoring devices all packets that we
+ * will transmit.
*/
virtio_transport_deliver_tap_pkt(pkt);
+ vhost_add_used(vq, head, sizeof(pkt->hdr) + payload_len);
+ added = true;
+
pkt->off += payload_len;
total_len += payload_len;
--
2.20.1
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