Re: [PATCH v13 0/3] Fix issues with huge mapping in ioremap for ARM64

[Chintan Pandya]

On 6/6/2018 9:15 PM, Will Deacon wrote:
> Hi Chintan,
Hi Will,

> Thanks for sticking with this. I've reviewed the series now and I'm keen
> for it to land in mainline. Just a couple of things below.

Thanks for all the reviews so far.

> On Wed, Jun 06, 2018 at 12:31:18PM +0530, Chintan Pandya wrote:
> > This series of patches re-bring huge vmap back for arm64.

...

> > These patches can also go into '-stable' branch (if accepted)
> > for 4.6 onwards.
>
> Not sure we need to target -stable, since we solved the crash by disabling
> the use of huge io mappings.

If disabling of huge io mappings have gone into stable trees, then I
won't push for these changes there.

> >   arch/arm64/include/asm/tlbflush.h |  7 ++++++
> >   arch/arm64/mm/mmu.c               | 48 +++++++++++++++++++++++++++++++++++----
> >   arch/x86/mm/pgtable.c             |  8 ++++---
> >   include/asm-generic/pgtable.h     |  8 +++----
> >   lib/ioremap.c                     |  4 ++--
>
> If you get an ack from the x86 folks, then I could take all of this via
> arm64. Alternatively, now that I've reviewed the series this could happily
> go via another tree (e.g. akpm).

Sure. I would wait for few days before either of them take notice of
this. If required, I will communicated with them.

> Thanks,
>
> Will
>
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Chintan
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