Re: [PATCH 07/10] mm/hugetlb: Make follow_hugetlb_page() safe to pmd unshare

[Mike Kravetz]

On 11/29/22 14:35, Peter Xu wrote:
> Since follow_hugetlb_page() walks the pgtable, it needs the vma lock
> to make sure the pgtable page will not be freed concurrently.
> 
> Signed-off-by: Peter Xu <peterx@xxxxxxxxxx>
> ---
>  mm/hugetlb.c | 7 +++++++
>  1 file changed, 7 insertions(+)

Thanks!  The flow of that routine is difficult to follow.

Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
-- 
Mike Kravetz