[mirror_ubuntu-bionic-kernel.git] / include / linux / page_owner.h

/* SPDX-License-Identifier: GPL-2.0 */
#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);
extern void pagetypeinfo_showmixedcount_print(struct seq_file *m,
					pg_data_t *pgdat, struct zone *zone);

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
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
48c96a36 JK	2	#ifndef __LINUX_PAGE_OWNER_H
	3	#define __LINUX_PAGE_OWNER_H
	4
7dd80b8a VB	5	#include <linux/jump_label.h>
7dd80b8a VB	6
48c96a36	7	#ifdef CONFIG_PAGE_OWNER
7dd80b8a	8	extern struct static_key_false page_owner_inited;
48c96a36 JK	9	extern struct page_ext_operations page_owner_ops;
	10
	11	extern void __reset_page_owner(struct page *page, unsigned int order);
	12	extern void __set_page_owner(struct page *page,
	13	unsigned int order, gfp_t gfp_mask);
a9627bc5	14	extern void __split_page_owner(struct page *page, unsigned int order);
d435edca	15	extern void __copy_page_owner(struct page oldpage, struct page newpage);
7cd12b4a	16	extern void __set_page_owner_migrate_reason(struct page *page, int reason);
4e462112	17	extern void __dump_page_owner(struct page *page);
e2f612e6 JK	18	extern void pagetypeinfo_showmixedcount_print(struct seq_file *m,
e2f612e6 JK	19	pg_data_t pgdat, struct zone zone);
48c96a36 JK	20
	21	static inline void reset_page_owner(struct page *page, unsigned int order)
	22	{
7dd80b8a VB	23	if (static_branch_unlikely(&page_owner_inited))
7dd80b8a VB	24	__reset_page_owner(page, order);
48c96a36 JK	25	}
	26
	27	static inline void set_page_owner(struct page *page,
	28	unsigned int order, gfp_t gfp_mask)
	29	{
7dd80b8a VB	30	if (static_branch_unlikely(&page_owner_inited))
7dd80b8a VB	31	__set_page_owner(page, order, gfp_mask);
48c96a36	32	}
e2cfc911	33
a9627bc5	34	static inline void split_page_owner(struct page *page, unsigned int order)
e2cfc911	35	{
7dd80b8a	36	if (static_branch_unlikely(&page_owner_inited))
a9627bc5	37	__split_page_owner(page, order);
e2cfc911	38	}
d435edca VB	39	static inline void copy_page_owner(struct page oldpage, struct page newpage)
	40	{
	41	if (static_branch_unlikely(&page_owner_inited))
	42	__copy_page_owner(oldpage, newpage);
	43	}
7cd12b4a VB	44	static inline void set_page_owner_migrate_reason(struct page *page, int reason)
	45	{
	46	if (static_branch_unlikely(&page_owner_inited))
	47	__set_page_owner_migrate_reason(page, reason);
	48	}
4e462112 VB	49	static inline void dump_page_owner(struct page *page)
	50	{
	51	if (static_branch_unlikely(&page_owner_inited))
	52	__dump_page_owner(page);
	53	}
48c96a36 JK	54	#else
	55	static inline void reset_page_owner(struct page *page, unsigned int order)
	56	{
	57	}
	58	static inline void set_page_owner(struct page *page,
	59	unsigned int order, gfp_t gfp_mask)
	60	{
	61	}
a9627bc5 JK	62	static inline void split_page_owner(struct page *page,
a9627bc5 JK	63	unsigned int order)
e2cfc911	64	{
e2cfc911	65	}
d435edca VB	66	static inline void copy_page_owner(struct page oldpage, struct page newpage)
	67	{
	68	}
7cd12b4a VB	69	static inline void set_page_owner_migrate_reason(struct page *page, int reason)
	70	{
	71	}
4e462112 VB	72	static inline void dump_page_owner(struct page *page)
	73	{
	74	}
48c96a36 JK	75	#endif /* CONFIG_PAGE_OWNER */
48c96a36 JK	76	#endif /* __LINUX_PAGE_OWNER_H */