Re: [PATCH] xen-netfront: wait xenbus state change when load module manually
From: David Miller <davem@davemloft.net>
Date: 2018-07-29 15:30:48
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From: Xiao Liang <redacted> Date: Fri, 27 Jul 2018 17:56:08 +0800
quoted hunk ↗ jump to hunk
@@ -1330,6 +1331,11 @@ static struct net_device *xennet_create_dev(struct xenbus_device *dev) netif_carrier_off(netdev); xenbus_switch_state(dev, XenbusStateInitialising); + wait_event(module_load_q, + xenbus_read_driver_state(dev->otherend) != + XenbusStateClosed && + xenbus_read_driver_state(dev->otherend) != + XenbusStateUnknown); return netdev; exit:
What performs the wakeups that will trigger for this sleep site? Thank you.