50 	struct page_ext *page_ext = page_ext_get(page);  in page_is_young()  local
53 	if (unlikely(!page_ext))  in page_is_young()
56 	page_young = test_bit(PAGE_EXT_YOUNG, &page_ext->flags);  in page_is_young()
57 	page_ext_put(page_ext);  in page_is_young()
64 	struct page_ext *page_ext = page_ext_get(page);  in set_page_young()  local
66 	if (unlikely(!page_ext))  in set_page_young()
69 	set_bit(PAGE_EXT_YOUNG, &page_ext->flags);  in set_page_young()
70 	page_ext_put(page_ext);  in set_page_young()
75 	struct page_ext *page_ext = page_ext_get(page);  in test_and_clear_page_young()  local
78 	if (unlikely(!page_ext))  in test_and_clear_page_young()
81 	page_young = test_and_clear_bit(PAGE_EXT_YOUNG, &page_ext->flags);  in test_and_clear_page_young()
82 	page_ext_put(page_ext);  in test_and_clear_page_young()
89 	struct page_ext *page_ext = page_ext_get(page);  in page_is_idle()  local
92 	if (unlikely(!page_ext))  in page_is_idle()
95 	page_idle =  test_bit(PAGE_EXT_IDLE, &page_ext->flags);  in page_is_idle()
96 	page_ext_put(page_ext);  in page_is_idle()
103 	struct page_ext *page_ext = page_ext_get(page);  in set_page_idle()  local
105 	if (unlikely(!page_ext))  in set_page_idle()
108 	set_bit(PAGE_EXT_IDLE, &page_ext->flags);  in set_page_idle()
109 	page_ext_put(page_ext);  in set_page_idle()
114 	struct page_ext *page_ext = page_ext_get(page);  in clear_page_idle()  local
116 	if (unlikely(!page_ext))  in clear_page_idle()
119 	clear_bit(PAGE_EXT_IDLE, &page_ext->flags);  in clear_page_idle()
120 	page_ext_put(page_ext);  in clear_page_idle()