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_refs(struct page *page, int order)
19 set_page_count(page, 1);
24 * We need to reference all the pages for this order, otherwise if
25 * anyone accesses one of the pages with (get/put) it will be freed.
26 * - eg: access_process_vm()
28 for (i = 0; i < (1 << order); i++)
29 set_page_count(page + i, 1);
30 #endif /* CONFIG_MMU */
33 static inline void __put_page(struct page *page)
35 atomic_dec(&page->_count);
38 extern void fastcall __init __free_pages_bootmem(struct page *page,