[deliverable/linux.git] / include / linux / page_owner.h

#ifndef __LINUX_PAGE_OWNER_H
#define __LINUX_PAGE_OWNER_H

#ifdef CONFIG_PAGE_OWNER
extern bool page_owner_inited;
extern struct page_ext_operations page_owner_ops;

extern void __reset_page_owner(struct page *page, unsigned int order);
extern void __set_page_owner(struct page *page,
			unsigned int order, gfp_t gfp_mask);

static inline void reset_page_owner(struct page *page, unsigned int order)
{
	if (likely(!page_owner_inited))
		return;

	__reset_page_owner(page, order);
}

static inline void set_page_owner(struct page *page,
			unsigned int order, gfp_t gfp_mask)
{
	if (likely(!page_owner_inited))
		return;

	__set_page_owner(page, order, gfp_mask);
}
#else
static inline void reset_page_owner(struct page *page, unsigned int order)
{
}
static inline void set_page_owner(struct page *page,
			unsigned int order, gfp_t gfp_mask)
{
}

#endif /* CONFIG_PAGE_OWNER */
#endif /* __LINUX_PAGE_OWNER_H */
Commit	Line	Data
48c96a36 JK	1	#ifndef __LINUX_PAGE_OWNER_H
	2	#define __LINUX_PAGE_OWNER_H
	3
	4	#ifdef CONFIG_PAGE_OWNER
	5	extern bool page_owner_inited;
	6	extern struct page_ext_operations page_owner_ops;
	7
	8	extern void __reset_page_owner(struct page *page, unsigned int order);
	9	extern void __set_page_owner(struct page *page,
	10	unsigned int order, gfp_t gfp_mask);
	11
	12	static inline void reset_page_owner(struct page *page, unsigned int order)
	13	{
	14	if (likely(!page_owner_inited))
	15	return;
	16
	17	__reset_page_owner(page, order);
	18	}
	19
	20	static inline void set_page_owner(struct page *page,
	21	unsigned int order, gfp_t gfp_mask)
	22	{
	23	if (likely(!page_owner_inited))
	24	return;
	25
	26	__set_page_owner(page, order, gfp_mask);
	27	}
	28	#else
	29	static inline void reset_page_owner(struct page *page, unsigned int order)
	30	{
	31	}
	32	static inline void set_page_owner(struct page *page,
	33	unsigned int order, gfp_t gfp_mask)
	34	{
	35	}
	36
	37	#endif /* CONFIG_PAGE_OWNER */
	38	#endif /* __LINUX_PAGE_OWNER_H */