Commit 01ad1c08 authored by Andi Kleen's avatar Andi Kleen Committed by Linus Torvalds
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mm: export prep_compound_page to mm

hugetlb will need to get compound pages from bootmem to handle the case of
them being greater than or equal to MAX_ORDER.  Export the constructor
function needed for this.
Acked-by: default avatarAdam Litke <>
Signed-off-by: default avatarAndi Kleen <>
Signed-off-by: default avatarNick Piggin <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent b54bbf7b
......@@ -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);
......@@ -264,7 +264,7 @@ static void free_compound_page(struct page *page)
__free_pages_ok(page, compound_order(page));
static void prep_compound_page(struct page *page, unsigned long order)
void prep_compound_page(struct page *page, unsigned long order)
int i;
int nr_pages = 1 << order;
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