Re: [PATCH] PCI: hv: use effective affinity mask

From: Bjorn Helgaas
Date: Tue Nov 07 2017 - 22:01:47 EST


On Wed, Nov 08, 2017 at 01:27:02AM +0000, Dexuan Cui wrote:
> > From: Bjorn Helgaas [mailto:helgaas@xxxxxxxxxx]
> > Sent: Tuesday, November 7, 2017 5:08 PM
> > On Wed, Nov 01, 2017 at 08:30:53PM +0000, Dexuan Cui wrote:
> > >
> > > Please consider this for v4.14, if it's not too late.
> >
> > What would be the rationale for putting it in v4.14? After the merge
> > window, I usually only merge fixes for problems introduced during the
> > merge window, or for serious regressions. I can't tell if this fits
> > into that or not.
>
> The patch was sent last Wednesday and I hoped it could catch the
> merge window to be in v4.14 so we won't have to request a backport
> for the v4.14 stable kernel in future. And I was not exactly sure when
> the merge window was. Sorry :-)
>
> The patch is not fixing a serious regression. It just fixes a long standing
> issue from the beginning of the Hyper-V vPCI driver: 1 of 7 Mellanox
> VFs of a 32-vCPU VM running on Hyper-V may not receive interrupts.

No problem. I added a stable tag so the backport should happen
automatically and put it on my pci/host-hv branch for v4.15, with Jake's
Reviewed-by. Thanks!

Bjorn