#ifndef __LINUX_PAGE_OWNER_H
#define __LINUX_PAGE_OWNER_H
+#include <linux/jump_label.h>
+
#ifdef CONFIG_PAGE_OWNER
-extern bool page_owner_inited;
+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 gfp_t __get_page_owner_gfp(struct page *page);
+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 (likely(!page_owner_inited))
- return;
-
- __reset_page_owner(page, 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 (likely(!page_owner_inited))
- return;
-
- __set_page_owner(page, order, gfp_mask);
+ if (static_branch_unlikely(&page_owner_inited))
+ __set_page_owner(page, order, gfp_mask);
}
static inline gfp_t get_page_owner_gfp(struct page *page)
{
- if (likely(!page_owner_inited))
+ if (static_branch_unlikely(&page_owner_inited))
+ return __get_page_owner_gfp(page);
+ else
return 0;
-
- return __get_page_owner_gfp(page);
+}
+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)
{
return 0;
}
-
+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 */