It's coming, not yet, but soon. Loose the restriction. Signed-off-by: Peter Xu <peterx@xxxxxxxxxx> --- mm/hugetlb.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index f037eaf9d819..31d8f18bc2e4 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -6467,13 +6467,6 @@ struct page *hugetlb_follow_page_mask(struct vm_area_struct *vma, spinlock_t *ptl; pte_t *pte, entry; - /* - * FOLL_PIN is not supported for follow_page(). Ordinary GUP goes via - * follow_hugetlb_page(). - */ - if (WARN_ON_ONCE(flags & FOLL_PIN)) - return NULL; - hugetlb_vma_lock_read(vma); pte = hugetlb_walk(vma, haddr, huge_page_size(h)); if (!pte) -- 2.40.1
