From 01ad1c0827db5b3695c53e296dbb2c1da16a0911 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 23 Jul 2008 21:27:46 -0700 Subject: [PATCH] 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: Adam Litke Signed-off-by: Andi Kleen Signed-off-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/internal.h | 2 ++ mm/page_alloc.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/mm/internal.h b/mm/internal.h index 858ad01..1f43f74 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); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e43aae1..eaa8667 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -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; -- 2.7.4