Lines Matching refs:page_ext
93 static struct page_ext *lookup_page_ext(const struct page *page);
112 page_ext_size = sizeof(struct page_ext); in invoke_need_callbacks()
147 static inline struct page_ext *get_entry(void *base, unsigned long index) in get_entry()
163 struct page_ext *page_ext_get(struct page *page) in page_ext_get()
165 struct page_ext *page_ext; in page_ext_get() local
168 page_ext = lookup_page_ext(page); in page_ext_get()
169 if (!page_ext) { in page_ext_get()
174 return page_ext; in page_ext_get()
187 void page_ext_put(struct page_ext *page_ext) in page_ext_put() argument
189 if (unlikely(!page_ext)) in page_ext_put()
202 static struct page_ext *lookup_page_ext(const struct page *page) in lookup_page_ext()
206 struct page_ext *base; in lookup_page_ext()
225 struct page_ext *base; in alloc_node_page_ext()
276 static bool page_ext_invalid(struct page_ext *page_ext) in page_ext_invalid() argument
278 return !page_ext || (((unsigned long)page_ext & PAGE_EXT_INVALID) == PAGE_EXT_INVALID); in page_ext_invalid()
281 static struct page_ext *lookup_page_ext(const struct page *page) in lookup_page_ext()
285 struct page_ext *page_ext = READ_ONCE(section->page_ext); in lookup_page_ext() local
294 if (page_ext_invalid(page_ext)) in lookup_page_ext()
296 return get_entry(page_ext, pfn); in lookup_page_ext()
318 struct page_ext *base; in init_section_page_ext()
323 if (section->page_ext) in init_section_page_ext()
346 section->page_ext = (void *)base - page_ext_size * pfn; in init_section_page_ext()
370 struct page_ext *base; in __free_page_ext()
373 if (!ms || !ms->page_ext) in __free_page_ext()
376 base = READ_ONCE(ms->page_ext); in __free_page_ext()
383 WRITE_ONCE(ms->page_ext, NULL); in __free_page_ext()
395 if (!ms || !ms->page_ext) in __invalidate_page_ext()
397 val = (void *)ms->page_ext + PAGE_EXT_INVALID; in __invalidate_page_ext()
398 WRITE_ONCE(ms->page_ext, val); in __invalidate_page_ext()