Re: [PATCH v3] sched: cpuset: Don't rebuild root domains on suspend-resume

Juri Lelli
2023-03-08T10:20:09Z

On 01/03/23 17:03, Qais Yousef wrote:
> On 03/01/23 15:26, Juri Lelli wrote:
> > On 01/03/23 12:28, Qais Yousef wrote:
> > > On 03/01/23 08:31, Juri Lelli wrote:
> >
> > ...
> >
> > > > Not ignoring you guys here, but it turns out I'm quite bogged down with
> > > > other stuff at the moment. :/ So, apologies and I'll try to get to this
> > > > asap. Thanks a lot for all your efforts and time reviewing so far!
> > >
> > > Np, I can feel you :-)
> >
> > Eh. :/
>
> I hope I did not offend. That was meant as no pressure, I understand.

No offence at all! I meant "we are all on the same boat it seems". :)

> > BTW, do you have a repro script of some sort handy I might play with?
>
> Sorry no. You'll just need to suspend to ram. I had a simple patch to measure
> the time around the call and trace_printk'ed the result.
>
> I was working on a android phone which just suspends to ram if you turn the
> screen off and disconnect the usb.

Looks like I could come up with the following

https://github.com/jlelli/linux.git deadline/rework-cpusets
https://github.com/jlelli/linux/tree/deadline/rework-cpusets

which I don't think it's at a point that I feel comfortable to propose
as an RFC (not even sure if it actually makes sense), but it survived my
very light testing.

Could you please take a look and, if it makes some sense in theory, give
it a try on your end?

Thanks!
Juri