Re: [RFC 7/7] vhost: Add new UAPI to support changing Kthread mode

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On Tue, Aug 27, 2024 at 10:09 AM Jason Wang <jasowang@xxxxxxxxxx> wrote:
>
> On Mon, Aug 26, 2024 at 2:31 PM Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:
> >
> > On Mon, Aug 26, 2024 at 02:21:52PM +0800, Jason Wang wrote:
> > > > What is the application visible behavior that the API use is the proxy
> > > > for?
> > >
> > > Vhost used to be created by kthreadd but some recent patches change it
> > > to behave like being froked by the owner. So the various attributes
> > > that interhit from the parent has been changed (scheduling and
> > > namespace etc).
> >
> > Well, if that breaks userspace it needs to be changed to opt into the
> > new behavior rather than requiring a flag to not break the existing
> > applications.
>
> Yes, if I was not wrong, this is something this series tries to reach.
>
> No flag means old behaviour, new flag means new behaviour.

Ok, I see. The series is trying to do the reverse.

We need to fix that.

Thanks

>
> > Assuming the change is intentional to start with.
> >
> >
>
> Thanks






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