52 struct page_ext {  struct
94 extern struct page_ext *page_ext_get(const struct page *page);
95 extern struct page_ext *page_ext_from_phys(phys_addr_t phys);
96 extern void page_ext_put(struct page_ext *page_ext);
97 extern struct page_ext *page_ext_lookup(unsigned long pfn);
99 static inline void *page_ext_data(struct page_ext *page_ext,  in page_ext_data()  argument
102 	return (void *)(page_ext) + ops->offset;  in page_ext_data()
105 static inline struct page_ext *page_ext_next(struct page_ext *curr)  in page_ext_next()
115 	struct page_ext *page_ext;  member
128 static inline struct page_ext *page_ext_iter_begin(struct page_ext_iter *iter,  in page_ext_iter_begin()
136 	iter->page_ext = page_ext_lookup(pfn);  in page_ext_iter_begin()
138 	return iter->page_ext;  in page_ext_iter_begin()
150 static inline struct page_ext *page_ext_iter_next(struct page_ext_iter *iter,  in page_ext_iter_next()
155 	if (WARN_ON_ONCE(!iter->page_ext))  in page_ext_iter_next()
163 		iter->page_ext = page_ext_next(iter->page_ext);  in page_ext_iter_next()
165 		iter->page_ext = page_ext_lookup(pfn);  in page_ext_iter_next()
167 	return iter->page_ext;  in page_ext_iter_next()
176 static inline struct page_ext *page_ext_iter_get(const struct page_ext_iter *iter)  in page_ext_iter_get()
178 	return iter->page_ext;  in page_ext_iter_get()
197 struct page_ext;
216 static inline struct page_ext *page_ext_get(const struct page *page)  in page_ext_get()
221 static inline struct page_ext *page_ext_from_phys(phys_addr_t phys)  in page_ext_from_phys()
226 static inline void page_ext_put(struct page_ext *page_ext)  in page_ext_put()  argument