RE: [PATCH] PCI: hv: Do not wait forever on a device that has disappeared

[Haiyang Zhang]

> -----Original Message-----
> From: Dexuan Cui
> Sent: Wednesday, May 23, 2018 5:12 PM
> To: 'Lorenzo Pieralisi' <lorenzo.pieralisi@xxxxxxx>; 'Bjorn Helgaas'
> <bhelgaas@xxxxxxxxxx>; 'linux-pci@xxxxxxxxxxxxxxx' <linux-
> pci@xxxxxxxxxxxxxxx>; KY Srinivasan <kys@xxxxxxxxxxxxx>; Stephen
> Hemminger <sthemmin@xxxxxxxxxxxxx>; 'olaf@xxxxxxxxx' <olaf@xxxxxxxxx>;
> 'apw@xxxxxxxxxxxxx' <apw@xxxxxxxxxxxxx>; 'jasowang@xxxxxxxxxx'
> <jasowang@xxxxxxxxxx>
> Cc: 'linux-kernel@xxxxxxxxxxxxxxx' <linux-kernel@xxxxxxxxxxxxxxx>; 'driverdev-
> devel@xxxxxxxxxxxxxxxxxxxxxx' <driverdev-devel@xxxxxxxxxxxxxxxxxxxxxx>;
> Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>; 'vkuznets@xxxxxxxxxx'
> <vkuznets@xxxxxxxxxx>; 'marcelo.cerri@xxxxxxxxxxxxx'
> <marcelo.cerri@xxxxxxxxxxxxx>
> Subject: [PATCH] PCI: hv: Do not wait forever on a device that has disappeared
> 
> 
> Before the guest finishes the device initialization, the device can be removed
> anytime by the host, and after that the host won't respond to the guest's
> request, so the guest should be prepared to handle this case.
> 
> Signed-off-by: Dexuan Cui <decui@xxxxxxxxxxxxx>
> Cc: Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>
> Cc: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
> ---
>  drivers/pci/host/pci-hyperv.c | 46 ++++++++++++++++++++++++++++++++-------
> ----

Reviewed-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>

Thank you!