LXR linux/include/linux/page

   1#ifndef __LINUX_PAGE_OWNER_H
   2#define __LINUX_PAGE_OWNER_H
   3
   4#ifdef CONFIG_PAGE_OWNER
   5extern bool page_owner_inited;
   6extern struct page_ext_operations page_owner_ops;
   7
   8extern void __reset_page_owner(struct page *page, unsigned int order);
   9extern void __set_page_owner(struct page *page,
  10                        unsigned int order, gfp_t gfp_mask);
  11
  12static 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
  20static 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
  29static inline void reset_page_owner(struct page *page, unsigned int order)
  30{
  31}
  32static 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 */
  39