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authorJens Freimann <jfreimann@redhat.com>2019-11-20 16:49:48 +0100
committerJason Wang <jasowang@redhat.com>2019-11-25 23:30:28 +0800
commit284f42a520cd9f5905abac2fa50397423890de8f (patch)
tree33e471c9d4372ce0b59533e99a97f1d1d61b42f1 /migration
parent122e6d2a9c1bf8aa1d51409c15809a82621515b1 (diff)
downloadqemu-284f42a520cd9f5905abac2fa50397423890de8f.zip
net/virtio: fix dev_unplug_pending
.dev_unplug_pending is set up by virtio-net code indepent of failover support was set for the device or not. This gives a wrong result when we check for existing primary devices in migration code. Fix this by actually calling dev_unplug_pending() instead of just checking if the function pointer was set. When the feature was not negotiated dev_unplug_pending() will always return false. This prevents us from going into the wait-unplug state when there's no primary device present. Fixes: 9711cd0dfc3f ("net/virtio: add failover support") Signed-off-by: Jens Freimann <jfreimann@redhat.com> Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'migration')
-rw-r--r--migration/savevm.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/migration/savevm.c b/migration/savevm.c
index 966a9c3bdb..a71b930b91 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -1119,7 +1119,8 @@ int qemu_savevm_nr_failover_devices(void)
int n = 0;
QTAILQ_FOREACH(se, &savevm_state.handlers, entry) {
- if (se->vmsd && se->vmsd->dev_unplug_pending) {
+ if (se->vmsd && se->vmsd->dev_unplug_pending &&
+ se->vmsd->dev_unplug_pending(se->opaque)) {
n++;
}
}