Re: [PATCH 1/2] pci: host: pci-hyperv: Replace GFP_ATOMIC with GFP_KERNEL in hv_pci_onchannelcallback

[Jia-Ju Bai]

On 2018/3/19 10:52, KY Srinivasan wrote:
> > -----Original Message-----
> > From: Jia-Ju Bai <baijiaju1990@xxxxxxxxx>
> > Sent: Sunday, March 18, 2018 7:53 AM
> > To: KY Srinivasan <kys@xxxxxxxxxxxxx>; Haiyang Zhang
> > <haiyangz@xxxxxxxxxxxxx>; Stephen Hemminger
> > <sthemmin@xxxxxxxxxxxxx>; bhelgaas@xxxxxxxxxx
> > Cc: devel@xxxxxxxxxxxxxxxxxxxxxx; linux-pci@xxxxxxxxxxxxxxx; linux-
> > kernel@xxxxxxxxxxxxxxx; Jia-Ju Bai <baijiaju1990@xxxxxxxxx>
> > Subject: [PATCH 1/2] pci: host: pci-hyperv: Replace GFP_ATOMIC with
> > GFP_KERNEL in hv_pci_onchannelcallback
> >
> > hv_pci_onchannelcallback() is not called in atomic context.
> >
> > The call chain ending up at hv_pci_onchannelcallback() is:
> > [1] hv_pci_onchannelcallback() <- hv_pci_probe()
> > hv_pci_probe() is only set as ".probe" in hv_driver
> > structure "hv_pci_drv".
> This function is setup as the function to handle interrupts on the channel. Hence the
> need for GFP_ATOMIC.

Oh, sorry for my incorrect patch.
Thanks for your reply :)


Best wishes,
Jia-Ju Bai