Re: [PATCH v2 01/13] mm/Kconfig: CONFIG_PGTABLE_HAS_HUGE_LEAVES
From: Jason Gunthorpe
Date: Mon Jan 15 2024 - 12:37:50 EST
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