From: Jerome Glisse <[email protected]>

Do not increase page count if FOLL_GET is not set.

Signed-off-by: Jerome Glisse <[email protected]>
---
 mm/hugetlb.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 1a12f5b..5d1e46b 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2991,7 +2991,9 @@ 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]);
+                       if (flags & FOLL_GET) {
+                               get_page_foll(pages[i]);
+                       }
                }
 
                if (vmas)
-- 
1.8.2.1

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