[PATCH v5 22/24] mm: use custom page_free for P2PDMA pages

Logan Gunthorpe logang at deltatee.com
Fri Jan 28 08:52:18 PST 2022



On 2022-01-28 7:22 a.m., Jason Gunthorpe wrote:
> On Thu, Jan 27, 2022 at 05:26:12PM -0700, Logan Gunthorpe wrote:
>> When P2PDMA pages are passed to userspace, they will need to be
>> reference counted properly and returned to their genalloc after their
>> reference count returns to 1. This is accomplished with the existing
> 
> It is reference count returns to 0 now, right?

Right, yes.

Thanks,

Logan



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