drivers/md/dm-bufio.c

117 static void lru_insert(struct lru *lru, struct lru_entry *le)
123 	atomic_set(&le->referenced, 0);
126 		list_add_tail(&le->list, lru->cursor);
128 		INIT_LIST_HEAD(&le->list);
129 		lru->cursor = &le->list;
164 typedef bool (*iter_predicate)(struct lru_entry *le, void *context);
222 static void lru_remove(struct lru *lru, struct lru_entry *le)
224 	lru_iter_invalidate(lru, le);
228 		if (lru->cursor == &le->list)
230 		list_del(&le->list);
238 static inline void lru_reference(struct lru_entry *le)
240 	atomic_set(&le->referenced, 1);
255 typedef enum evict_result (*le_predicate)(struct lru_entry *le, void *context);
261 	struct lru_entry *le;
271 		le = container_of(h, struct lru_entry, list);
273 		if (atomic_read(&le->referenced)) {
274 			atomic_set(&le->referenced, 0);
277 			switch (pred(le, context)) {
283 				lru->cursor = le->list.next;
284 				lru_remove(lru, le);
285 				return le;
291 				lru->cursor = le->list.next;
523 static inline struct dm_buffer *le_to_buffer(struct lru_entry *le)
525 	return container_of(le, struct dm_buffer, lru);
530 	struct lru_entry *le = list_entry(l, struct lru_entry, list);
532 	if (!le)
535 	return le_to_buffer(le);
667 static enum evict_result __evict_pred(struct lru_entry *le, void *context)
670 	struct dm_buffer *b = le_to_buffer(le);
685 	struct lru_entry *le;
688 	le = lru_evict(&bc->lru[list_mode], __evict_pred, &w, bc->no_sleep);
689 	if (!le)
692 	b = le_to_buffer(le);
737 	struct lru_entry *le;
742 		le = lru_evict(&bc->lru[old_mode], __evict_pred, &w, bc->no_sleep);
743 		if (!le)
746 		b = le_to_buffer(le);
784 	struct lru_entry *le, *first;
789 	first = le = to_le(lru->cursor);
791 		struct dm_buffer *b = le_to_buffer(le);
804 		le = to_le(le->list.next);
805 	} while (le != first);