Re: [PATCH v3 0/4] mm: add more kernel parameters to control mTHP

[Maíra Canal]

Hi Andrew,

On 31/10/24 22:12, Andrew Morton wrote:
> On Thu, 31 Oct 2024 08:04:58 -0300 Maíra Canal <mcanal@xxxxxxxxxx> wrote:
>
> > > There isn't a lot of info here - please explain this timing issue in
> > > more detail.
> > >
> > > Because the question which leaps to mind is: shouldn't the
> > > "applications that use shmem" be changed to "configure mTHP through
> > > sysfs" *before* "using shmem"?  Seems pretty basic.
> >
> > Sorry about that, I'll try to improve the commit messages and add more
> > details.
> >
> > As mentioned in the example I gave ("DRM GEM objects"), my main use is
> > GEM objects backed by shmem. I'd like to use Huge Pages on the GPU and I
> > can only do that if I have contiguous memory to back my objects.
> >
> > I can't think how I can change sysfs from a DRM driver.
>
> So your term "applications" actually refers to in-kernel drivers?

Yes, I'll make it clearer in v4. Sorry for the vague commit message.

Best Regards,
- Maíra