Re: [PATCH v2] mm: re-allow pinning of zero pfns (again)

John Hubbard
2022-08-28T17:17:01Z

On 8/28/22 05:37, Alex Williamson wrote:
>> Those notes are all about (some of) the callers. But it's a simple
>> answer, really, so how about just this:
>>
>> /* The zero page is always allowed to be pinned. */
>
> Sure. Are we looking for a re-spin with this? I see Andrew already
> added this incremental change to his hotfix-unstable branch separately.
> I'd hate for a comment re-spin to delay getting a fix for this problem,
> that blocks any VM use cases of VFIO, into mainline any longer. Thanks,
>

Definitely not. Andrews fixup should suffice.

thanks,

--
John Hubbard
NVIDIA