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

[John Hubbard]

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