RE: [PATCH 1/1] Drivers: hv: vmbus: Add timeout to vmbus_wait_for_unload

From: Dexuan Cui
Date: Sun Sep 13 2020 - 15:56:52 EST


> From: linux-hyperv-owner@xxxxxxxxxxxxxxx
> <linux-hyperv-owner@xxxxxxxxxxxxxxx> On Behalf Of Michael Kelley
> Sent: Sunday, September 13, 2020 12:47 PM
>
> vmbus_wait_for_unload() looks for a CHANNELMSG_UNLOAD_RESPONSE
> message
> coming from Hyper-V. But if the message isn't found for some reason,
> the panic path gets hung forever. Add a timeout of 10 seconds to prevent
> this.
>
> Fixes: 415719160de3 ("Drivers: hv: vmbus: avoid scheduling in interrupt
> context in vmbus_initiate_unload()")
> Signed-off-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>

Reviewed-by: Dexuan Cui <decui@xxxxxxxxxxxxx>