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From:   Haiyang Zhang <haiyangz@microsoft.com>
To:     Dexuan Cui <decui@microsoft.com>,
        'Lorenzo Pieralisi' <lorenzo.pieralisi@arm.com>,
        'Bjorn Helgaas' <bhelgaas@google.com>,
        "'linux-pci@vger.kernel.org'" <linux-pci@vger.kernel.org>,
        KY Srinivasan <kys@microsoft.com>,
        Stephen Hemminger <sthemmin@microsoft.com>,
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CC:     "'linux-kernel@vger.kernel.org'" <linux-kernel@vger.kernel.org>,
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        "'marcelo.cerri@canonical.com'" <marcelo.cerri@canonical.com>
Subject: RE: [PATCH] PCI: hv: Do not wait forever on a device that has
 disappeared
Thread-Topic: [PATCH] PCI: hv: Do not wait forever on a device that has
 disappeared
Thread-Index: AdPy2mt/5cq5najeS4qpn1DMFXGqNwBQxMBg
Date:   Fri, 25 May 2018 11:43:25 +0000
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> -----Original Message-----
> From: Dexuan Cui
> Sent: Wednesday, May 23, 2018 5:12 PM
> To: 'Lorenzo Pieralisi' <lorenzo.pieralisi@arm.com>; 'Bjorn Helgaas'
> <bhelgaas@google.com>; 'linux-pci@vger.kernel.org' <linux-
> pci@vger.kernel.org>; KY Srinivasan <kys@microsoft.com>; Stephen
> Hemminger <sthemmin@microsoft.com>; 'olaf@aepfle.de' <olaf@aepfle.de>;
> 'apw@canonical.com' <apw@canonical.com>; 'jasowang@redhat.com'
> <jasowang@redhat.com>
> Cc: 'linux-kernel@vger.kernel.org' <linux-kernel@vger.kernel.org>; 'drive=
rdev-
> devel@linuxdriverproject.org' <driverdev-devel@linuxdriverproject.org>;
> Haiyang Zhang <haiyangz@microsoft.com>; 'vkuznets@redhat.com'
> <vkuznets@redhat.com>; 'marcelo.cerri@canonical.com'
> <marcelo.cerri@canonical.com>
> Subject: [PATCH] PCI: hv: Do not wait forever on a device that has disapp=
eared
>=20
>=20
> Before the guest finishes the device initialization, the device can be re=
moved
> 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.
>=20
> Signed-off-by: Dexuan Cui <decui@microsoft.com>
> Cc: Stephen Hemminger <sthemmin@microsoft.com>
> Cc: K. Y. Srinivasan <kys@microsoft.com>
> ---
>  drivers/pci/host/pci-hyperv.c | 46 ++++++++++++++++++++++++++++++++-----=
--
> ----

Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>

Thank you!