Re: [PATCH v2 01/13] mm/Kconfig: CONFIG_PGTABLE_HAS_HUGE_LEAVES

[Jason Gunthorpe]

On Wed, Jan 03, 2024 at 05:14:11PM +0800, peterx@xxxxxxxxxx wrote:
> From: Peter Xu <peterx@xxxxxxxxxx>
> 
> Introduce a config option that will be selected as long as huge leaves are
> involved in pgtable (thp or hugetlbfs).  It would be useful to mark any
> code with this new config that can process either hugetlb or thp pages in
> any level that is higher than pte level.
> 
> Signed-off-by: Peter Xu <peterx@xxxxxxxxxx>
> ---
>  mm/Kconfig | 3 +++
>  1 file changed, 3 insertions(+)

So you mean anything that supports page table entires > PAGE_SIZE ?

Makes sense to me, though maybe add a comment in the kconfig?

Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>

Jason