get_page_foll is more optimal and is always safe to use under the PT
lock. More so for hugetlbfs as there's no risk of race conditions with
split_huge_page regardless of the PT lock.
Reviewed-by: Khalid Aziz <khalid.aziz@xxxxxxxxxx>
Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx>
---
mm/hugetlb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 14737f8e..f03e068 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -3113,7 +3113,7 @@ long follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma,
same_page:
if (pages) {
pages[i] = mem_map_offset(page, pfn_offset);
- get_page(pages[i]);
+ get_page_foll(pages[i]);
}
if (vmas)
--
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