shmem: get_unmapped_area align huge page

[cascardo/linux.git] / mm / gup.c

diff --git a/mm/gup.c b/mm/gup.c
index 9671e29..547741f 100644 (file)
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -288,6 +288,8 @@ struct page *follow_page_mask(struct vm_area_struct *vma,
                        ret = split_huge_page(page);
                        unlock_page(page);
                        put_page(page);
+                       if (pmd_none(*pmd))
+                               return no_page_table(vma, flags);
                }
 
                return ret ? ERR_PTR(ret) :