On 13.06.23 23:53, Peter Xu wrote:
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)
Did you fix why the warning was placed there in the first place? (IIRC,
at least unsharing support needs to be added, maybe more)
--
Cheers,
David / dhildenb
