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

Chintan Pandya
2018-06-07T08:03:36Z

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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