[linux-2.6-block.git] / include / linux / page_owner.h

#ifndef __LINUX_PAGE_OWNER_H
#define __LINUX_PAGE_OWNER_H

#include <linux/jump_label.h>

#ifdef CONFIG_PAGE_OWNER
extern struct static_key_false 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);
extern void __split_page_owner(struct page *page, unsigned int order);
extern void __copy_page_owner(struct page *oldpage, struct page *newpage);
extern void __set_page_owner_migrate_reason(struct page *page, int reason);
extern void __dump_page_owner(struct page *page);

static inline void reset_page_owner(struct page *page, unsigned int order)
{
	if (static_branch_unlikely(&page_owner_inited))
		__reset_page_owner(page, order);
}

static inline void set_page_owner(struct page *page,
			unsigned int order, gfp_t gfp_mask)
{
	if (static_branch_unlikely(&page_owner_inited))
		__set_page_owner(page, order, gfp_mask);
}

static inline void split_page_owner(struct page *page, unsigned int order)
{
	if (static_branch_unlikely(&page_owner_inited))
		__split_page_owner(page, order);
}
static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
{
	if (static_branch_unlikely(&page_owner_inited))
		__copy_page_owner(oldpage, newpage);
}
static inline void set_page_owner_migrate_reason(struct page *page, int reason)
{
	if (static_branch_unlikely(&page_owner_inited))
		__set_page_owner_migrate_reason(page, reason);
}
static inline void dump_page_owner(struct page *page)
{
	if (static_branch_unlikely(&page_owner_inited))
		__dump_page_owner(page);
}
#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)
{
}
static inline void split_page_owner(struct page *page,
			unsigned int order)
{
}
static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
{
}
static inline void set_page_owner_migrate_reason(struct page *page, int reason)
{
}
static inline void dump_page_owner(struct page *page)
{
}
#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
7dd80b8a VB	4	#include <linux/jump_label.h>
7dd80b8a VB	5
48c96a36	6	#ifdef CONFIG_PAGE_OWNER
7dd80b8a	7	extern struct static_key_false page_owner_inited;
48c96a36 JK	8	extern struct page_ext_operations page_owner_ops;
	9
	10	extern void __reset_page_owner(struct page *page, unsigned int order);
	11	extern void __set_page_owner(struct page *page,
	12	unsigned int order, gfp_t gfp_mask);
a9627bc5	13	extern void __split_page_owner(struct page *page, unsigned int order);
d435edca	14	extern void __copy_page_owner(struct page oldpage, struct page newpage);
7cd12b4a	15	extern void __set_page_owner_migrate_reason(struct page *page, int reason);
4e462112	16	extern void __dump_page_owner(struct page *page);
48c96a36 JK	17
	18	static inline void reset_page_owner(struct page *page, unsigned int order)
	19	{
7dd80b8a VB	20	if (static_branch_unlikely(&page_owner_inited))
7dd80b8a VB	21	__reset_page_owner(page, order);
48c96a36 JK	22	}
	23
	24	static inline void set_page_owner(struct page *page,
	25	unsigned int order, gfp_t gfp_mask)
	26	{
7dd80b8a VB	27	if (static_branch_unlikely(&page_owner_inited))
7dd80b8a VB	28	__set_page_owner(page, order, gfp_mask);
48c96a36	29	}
e2cfc911	30
a9627bc5	31	static inline void split_page_owner(struct page *page, unsigned int order)
e2cfc911	32	{
7dd80b8a	33	if (static_branch_unlikely(&page_owner_inited))
a9627bc5	34	__split_page_owner(page, order);
e2cfc911	35	}
d435edca VB	36	static inline void copy_page_owner(struct page oldpage, struct page newpage)
	37	{
	38	if (static_branch_unlikely(&page_owner_inited))
	39	__copy_page_owner(oldpage, newpage);
	40	}
7cd12b4a VB	41	static inline void set_page_owner_migrate_reason(struct page *page, int reason)
	42	{
	43	if (static_branch_unlikely(&page_owner_inited))
	44	__set_page_owner_migrate_reason(page, reason);
	45	}
4e462112 VB	46	static inline void dump_page_owner(struct page *page)
	47	{
	48	if (static_branch_unlikely(&page_owner_inited))
	49	__dump_page_owner(page);
	50	}
48c96a36 JK	51	#else
	52	static inline void reset_page_owner(struct page *page, unsigned int order)
	53	{
	54	}
	55	static inline void set_page_owner(struct page *page,
	56	unsigned int order, gfp_t gfp_mask)
	57	{
	58	}
a9627bc5 JK	59	static inline void split_page_owner(struct page *page,
a9627bc5 JK	60	unsigned int order)
e2cfc911	61	{
e2cfc911	62	}
d435edca VB	63	static inline void copy_page_owner(struct page oldpage, struct page newpage)
	64	{
	65	}
7cd12b4a VB	66	static inline void set_page_owner_migrate_reason(struct page *page, int reason)
	67	{
	68	}
4e462112 VB	69	static inline void dump_page_owner(struct page *page)
	70	{
	71	}
48c96a36 JK	72	#endif /* CONFIG_PAGE_OWNER */
48c96a36 JK	73	#endif /* __LINUX_PAGE_OWNER_H */