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-rw-r--r--mm/hugetlb.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index a446869aa7f1..332637342555 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -4669,6 +4669,14 @@ follow_huge_addr(struct mm_struct *mm, unsigned long address,
}
struct page * __weak
+follow_huge_pd(struct vm_area_struct *vma,
+ unsigned long address, hugepd_t hpd, int flags, int pdshift)
+{
+ WARN(1, "hugepd follow called with no support for hugepage directory format\n");
+ return NULL;
+}
+
+struct page * __weak
follow_huge_pmd(struct mm_struct *mm, unsigned long address,
pmd_t *pmd, int flags)
{