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-rw-r--r--mm/internal.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/internal.h b/mm/internal.h
index 858ad01864d..1f43f741697 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -16,6 +16,8 @@
void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *start_vma,
unsigned long floor, unsigned long ceiling);
+extern void prep_compound_page(struct page *page, unsigned long order);
+
static inline void set_page_count(struct page *page, int v)
{
atomic_set(&page->_count, v);