125 			struct swap_info_struct *sis = swap_info[i];  in frontswap_register_ops()  local
127 			if (!sis->frontswap_map)  in frontswap_register_ops()
166 	struct swap_info_struct *sis = swap_info[type];  in __frontswap_init()  local
168 	BUG_ON(sis == NULL);  in __frontswap_init()
181 	frontswap_map_set(sis, map);  in __frontswap_init()
191 bool __frontswap_test(struct swap_info_struct *sis,  in __frontswap_test()  argument
196 	if (frontswap_ops && sis->frontswap_map)  in __frontswap_test()
197 		ret = test_bit(offset, sis->frontswap_map);  in __frontswap_test()
202 static inline void __frontswap_clear(struct swap_info_struct *sis,  in __frontswap_clear()  argument
205 	clear_bit(offset, sis->frontswap_map);  in __frontswap_clear()
206 	atomic_dec(&sis->frontswap_pages);  in __frontswap_clear()
221 	struct swap_info_struct *sis = swap_info[type];  in __frontswap_store()  local
232 	BUG_ON(sis == NULL);  in __frontswap_store()
233 	if (__frontswap_test(sis, offset))  in __frontswap_store()
237 		set_bit(offset, sis->frontswap_map);  in __frontswap_store()
240 			atomic_inc(&sis->frontswap_pages);  in __frontswap_store()
248 			__frontswap_clear(sis, offset);  in __frontswap_store()
269 	struct swap_info_struct *sis = swap_info[type];  in __frontswap_load()  local
273 	BUG_ON(sis == NULL);  in __frontswap_load()
277 	if (__frontswap_test(sis, offset))  in __frontswap_load()
283 			__frontswap_clear(sis, offset);  in __frontswap_load()
296 	struct swap_info_struct *sis = swap_info[type];  in __frontswap_invalidate_page()  local
298 	BUG_ON(sis == NULL);  in __frontswap_invalidate_page()
302 	if (__frontswap_test(sis, offset)) {  in __frontswap_invalidate_page()
304 		__frontswap_clear(sis, offset);  in __frontswap_invalidate_page()
316 	struct swap_info_struct *sis = swap_info[type];  in __frontswap_invalidate_area()  local
319 		BUG_ON(sis == NULL);  in __frontswap_invalidate_area()
320 		if (sis->frontswap_map == NULL)  in __frontswap_invalidate_area()
323 		atomic_set(&sis->frontswap_pages, 0);  in __frontswap_invalidate_area()
324 		bitmap_zero(sis->frontswap_map, sis->max);  in __frontswap_invalidate_area()