1 /* internal.h: mm/ internal definitions
3 * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
11 #ifndef __MM_INTERNAL_H
12 #define __MM_INTERNAL_H
16 static inline void set_page_count(struct page *page, int v)
18 atomic_set(&page->_count, v);
22 * Turn a non-refcounted page (->_count == 0) into refcounted with
25 static inline void set_page_refcounted(struct page *page)
27 VM_BUG_ON(PageCompound(page) && page_private(page) != (unsigned long)page);
28 VM_BUG_ON(atomic_read(&page->_count));
29 set_page_count(page, 1);
32 static inline void __put_page(struct page *page)
34 atomic_dec(&page->_count);
37 extern void fastcall __init __free_pages_bootmem(struct page *page,