43 lines
1.5 KiB
Diff
43 lines
1.5 KiB
Diff
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From 7b404cae7fa2850d476c29258f03b8e77a5b4bd0 Mon Sep 17 00:00:00 2001
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From: Adrian Moreno <amorenoz@redhat.com>
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Date: Tue, 24 Sep 2019 18:20:44 +0200
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Subject: [PATCH] vhost-user: save features if the char dev is closed
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That way the state can be correctly restored when the device is opened
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again. This might happen if the backend is restarted.
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Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1738768
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Reported-by: Pei Zhang <pezhang@redhat.com>
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Fixes: 6ab79a20af3a ("do not call vhost_net_cleanup() on running net from char user event")
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Cc: ddstreet@canonical.com
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Cc: Michael S. Tsirkin <mst@redhat.com>
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Cc: qemu-stable@nongnu.org
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Signed-off-by: Adrian Moreno <amorenoz@redhat.com>
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Message-Id: <20190924162044.11414-1-amorenoz@redhat.com>
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Acked-by: Jason Wang <jasowang@redhat.com>
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Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
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Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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(cherry picked from commit c6beefd674fff8d41b90365dfccad32e53a5abcb)
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Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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---
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net/vhost-user.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/net/vhost-user.c b/net/vhost-user.c
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index 51921de443..014199d600 100644
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--- a/net/vhost-user.c
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+++ b/net/vhost-user.c
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@@ -235,6 +235,10 @@ static void chr_closed_bh(void *opaque)
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s = DO_UPCAST(NetVhostUserState, nc, ncs[0]);
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+ if (s->vhost_net) {
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+ s->acked_features = vhost_net_get_acked_features(s->vhost_net);
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+ }
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+
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qmp_set_link(name, false, &err);
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qemu_chr_fe_set_handlers(&s->chr, NULL, NULL, net_vhost_user_event,
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--
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2.23.0
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