RE: [PATCH v4 2/4] hv_utils: Support host-initiated restart request

[Michael Kelley]

From: Dexuan Cui <decui@xxxxxxxxxxxxx> Sent: Saturday, January 25, 2020 9:50 PM
> 
> The hv_utils driver currently supports a "shutdown" operation initiated
> from the Hyper-V host. Newer versions of Hyper-V also support a "restart"
> operation. So add support for the updated protocol version that has
> "restart" support, and perform a clean reboot when such a message is
> received from Hyper-V.
> 
> To test the restart functionality, run this PowerShell command on the
> Hyper-V host:
> 
> Restart-VM  <vmname>  -Type Reboot
> 
> Signed-off-by: Dexuan Cui <decui@xxxxxxxxxxxxx>
> 
> ---
> Changes in v2:
>    It's the same as v1.
> 
> Changes in v3 (I addressed Michael's comments):
>     Used a better version of changelog from  Michael.
>     Added a comment about the meaning of shutdown_msg->flags.
>     Call schedule_work() at the end of the function for consistency.
> 
> Changes in v4 (Thanks to Michael!):
>     Used a compact way to handle the work items.
> 
>  drivers/hv/hv_util.c | 39 +++++++++++++++++++++++++++++++--------
>  1 file changed, 31 insertions(+), 8 deletions(-)
> 

Reviewed-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>