297 struct cache {  struct
307 	struct dm_cache_metadata *cmd;  argument
322 	struct dm_dev *cache_dev;  argument
331 	 * Size of the cache device in blocks.  argument
333 	dm_cblock_t cache_size;  argument
338 	spinlock_t invalidation_lock;
339 	struct list_head invalidation_requests;
341 	sector_t migration_threshold;
342 	wait_queue_head_t migration_wait;
343 	atomic_t nr_allocated_migrations;
349 	atomic_t nr_io_migrations;
351 	struct bio_list deferred_bios;
353 	struct rw_semaphore quiesce_lock;
377 	 * cache_size entries, dirty if set  argument
383 	struct dm_cache_policy *policy;  argument
388 	struct cache_features features;  argument
390 	struct cache_stats stats;  argument
392 	bool need_tick_bio:1;
393 	bool sized:1;
394 	bool invalidate:1;
395 	bool commit_requested:1;
419 struct dm_cache_migration {  argument
421 	struct cache *cache;  argument
433 static bool writethrough_mode(struct cache *cache)  in writethrough_mode()
438 static bool writeback_mode(struct cache *cache)  in writeback_mode()
443 static inline bool passthrough_mode(struct cache *cache)  in passthrough_mode()
450 static void wake_deferred_bio_worker(struct cache *cache)  in wake_deferred_bio_worker()
455 static void wake_migration_worker(struct cache *cache)  in wake_migration_worker()
465 static struct dm_bio_prison_cell_v2 *alloc_prison_cell(struct cache *cache)  in alloc_prison_cell()
470 static void free_prison_cell(struct cache *cache, struct dm_bio_prison_cell_v2 *cell)  in free_prison_cell()
475 static struct dm_cache_migration *alloc_migration(struct cache *cache)  in alloc_migration()
491 	struct cache *cache = mg->cache;  in free_migration()  local
556 static void defer_bio(struct cache *cache, struct bio *bio)  in defer_bio()
565 static void defer_bios(struct cache *cache, struct bio_list *bios)  in defer_bios()
577 static bool bio_detain_shared(struct cache *cache, dm_oblock_t oblock, struct bio *bio)  in bio_detain_shared()
608 static bool is_dirty(struct cache *cache, dm_cblock_t b)  in is_dirty()
613 static void set_dirty(struct cache *cache, dm_cblock_t cblock)  in set_dirty()
625 static void force_set_dirty(struct cache *cache, dm_cblock_t cblock)  in force_set_dirty()
632 static void force_clear_dirty(struct cache *cache, dm_cblock_t cblock)  in force_clear_dirty()
644 static bool block_size_is_power_of_two(struct cache *cache)  in block_size_is_power_of_two()
656 static dm_block_t oblocks_per_dblock(struct cache *cache)  in oblocks_per_dblock()
668 static dm_dblock_t oblock_to_dblock(struct cache *cache, dm_oblock_t oblock)  in oblock_to_dblock()
674 static void set_discard(struct cache *cache, dm_dblock_t b)  in set_discard()
684 static void clear_discard(struct cache *cache, dm_dblock_t b)  in clear_discard()
691 static bool is_discarded(struct cache *cache, dm_dblock_t b)  in is_discarded()
702 static bool is_discarded_oblock(struct cache *cache, dm_oblock_t b)  in is_discarded_oblock()
719 static void remap_to_origin(struct cache *cache, struct bio *bio)  in remap_to_origin()
724 static void remap_to_cache(struct cache *cache, struct bio *bio,  in remap_to_cache()
741 static void check_if_tick_bio_needed(struct cache *cache, struct bio *bio)  in check_if_tick_bio_needed()
755 static void remap_to_origin_clear_discard(struct cache *cache, struct bio *bio,  in remap_to_origin_clear_discard()
765 static void remap_to_cache_dirty(struct cache *cache, struct bio *bio,  in remap_to_cache_dirty()
776 static dm_oblock_t get_bio_block(struct cache *cache, struct bio *bio)  in get_bio_block()
788 static bool accountable_bio(struct cache *cache, struct bio *bio)  in accountable_bio()
793 static void accounted_begin(struct cache *cache, struct bio *bio)  in accounted_begin()
804 static void accounted_complete(struct cache *cache, struct bio *bio)  in accounted_complete()
811 static void accounted_request(struct cache *cache, struct bio *bio)  in accounted_request()
819 	struct cache *cache = context;  in issue_op()  local
828 static void remap_to_origin_and_cache(struct cache *cache, struct bio *bio,  in remap_to_origin_and_cache()
850 static enum cache_metadata_mode get_cache_mode(struct cache *cache)  in get_cache_mode()
855 static const char *cache_device_name(struct cache *cache)  in cache_device_name()
860 static void notify_mode_switch(struct cache *cache, enum cache_metadata_mode mode)  in notify_mode_switch()
873 static void set_cache_mode(struct cache *cache, enum cache_metadata_mode new_mode)  in set_cache_mode()
914 static void abort_transaction(struct cache *cache)  in abort_transaction()
933 static void metadata_operation_failed(struct cache *cache, const char *op, int r)  in metadata_operation_failed()
943 static void load_stats(struct cache *cache)  in load_stats()
954 static void save_stats(struct cache *cache)  in save_stats()
994 static void inc_io_migrations(struct cache *cache)  in inc_io_migrations()
999 static void dec_io_migrations(struct cache *cache)  in dec_io_migrations()
1009 static void calc_discard_block_range(struct cache *cache, struct bio *bio,  in calc_discard_block_range()
1025 static void prevent_background_work(struct cache *cache)  in prevent_background_work()
1032 static void allow_background_work(struct cache *cache)  in allow_background_work()
1039 static bool background_work_begin(struct cache *cache)  in background_work_begin()
1050 static void background_work_end(struct cache *cache)  in background_work_end()
1059 static bool bio_writes_complete_block(struct cache *cache, struct bio *bio)  in bio_writes_complete_block()
1065 static bool optimisable_bio(struct cache *cache, struct bio *bio, dm_oblock_t block)  in optimisable_bio()
1098 	struct cache *cache = mg->cache;  in copy()  local
1114 static void bio_drop_shared_lock(struct cache *cache, struct bio *bio)  in bio_drop_shared_lock()
1126 	struct cache *cache = mg->cache;  in overwrite_endio()  local
1172 	struct cache *cache = mg->cache;  in mg_complete()  local
1241 	struct cache *cache = mg->cache;  in mg_update_metadata()  local
1343 	struct cache *cache = mg->cache;  in mg_full_copy()  local
1397 	struct cache *cache = mg->cache;  in mg_lock_writes()  local
1428 static int mg_start(struct cache *cache, struct policy_work *op, struct bio *bio)  in mg_start()
1457 	struct cache *cache = mg->cache;  in invalidate_complete()  local
1479 static int invalidate_cblock(struct cache *cache, dm_cblock_t cblock)  in invalidate_cblock()
1508 	struct cache *cache = mg->cache;  in invalidate_remove()  local
1527 	struct cache *cache = mg->cache;  in invalidate_lock()  local
1559 static int invalidate_start(struct cache *cache, dm_cblock_t cblock,  in invalidate_start()
1587 static enum busy spare_migration_bandwidth(struct cache *cache)  in spare_migration_bandwidth()
1599 static void inc_hit_counter(struct cache *cache, struct bio *bio)  in inc_hit_counter()
1605 static void inc_miss_counter(struct cache *cache, struct bio *bio)  in inc_miss_counter()
1613 static int map_bio(struct cache *cache, struct bio *bio, dm_oblock_t block,  in map_bio()
1728 static bool process_bio(struct cache *cache, struct bio *bio)  in process_bio()
1741 static int commit(struct cache *cache, bool clean_shutdown)  in commit()
1761 	struct cache *cache = context;  in commit_op()  local
1771 static bool process_flush_bio(struct cache *cache, struct bio *bio)  in process_flush_bio()
1784 static bool process_discard_bio(struct cache *cache, struct bio *bio)  in process_discard_bio()
1810 	struct cache *cache = container_of(ws, struct cache, deferred_bio_worker);  in process_deferred_bios()  local
1844 static void requeue_deferred_bios(struct cache *cache)  in requeue_deferred_bios()
1866 	struct cache *cache = container_of(to_delayed_work(ws), struct cache, waker);  in do_waker()  local
1878 	struct cache *cache = container_of(ws, struct cache, migration_worker);  in check_migrations()  local
1912 static void destroy(struct cache *cache)  in destroy()
1960 	struct cache *cache = ti->private;  in cache_dtr()  local
2268 static int process_config_option(struct cache *cache, const char *key, const char *value)  in process_config_option()
2283 static int set_config_value(struct cache *cache, const char *key, const char *value)  in set_config_value()
2296 static int set_config_values(struct cache *cache, int argc, const char **argv)  in set_config_values()
2317 static int create_cache_policy(struct cache *cache, struct cache_args *ca,  in create_cache_policy()
2360 static void set_cache_size(struct cache *cache, dm_cblock_t size)  in set_cache_size()
2379 	struct cache *cache;  in cache_create()  local
2572 static int copy_ctr_args(struct cache *cache, int argc, const char **argv)  in copy_ctr_args()
2600 	struct cache *cache = NULL;  in cache_ctr()  local
2633 	struct cache *cache = ti->private;  in cache_map()  local
2665 	struct cache *cache = ti->private;  in cache_end_io()  local
2683 static int write_dirty_bitset(struct cache *cache)  in write_dirty_bitset()
2697 static int write_discard_bitset(struct cache *cache)  in write_discard_bitset()
2724 static int write_hints(struct cache *cache)  in write_hints()
2743 static bool sync_metadata(struct cache *cache)  in sync_metadata()
2775 	struct cache *cache = ti->private;  in cache_postsuspend()  local
2797 	struct cache *cache = context;  in load_mapping()  local
2815 	struct cache *cache;  member
2825 static void discard_load_info_init(struct cache *cache,  in discard_load_info_init()
2892 static dm_cblock_t get_cache_dev_size(struct cache *cache)  in get_cache_dev_size()
2899 static bool can_resize(struct cache *cache, dm_cblock_t new_size)  in can_resize()
2925 static int resize_cache_dev(struct cache *cache, dm_cblock_t new_size)  in resize_cache_dev()
2944 	struct cache *cache = ti->private;  in cache_preresume()  local
3005 	struct cache *cache = ti->private;  in cache_resume()  local
3012 static void emit_flags(struct cache *cache, char *result,  in emit_flags()
3065 	struct cache *cache = ti->private;  in cache_status()  local
3196 static int parse_cblock_range(struct cache *cache, const char *str,  in parse_cblock_range()
3233 static int validate_cblock_range(struct cache *cache, struct cblock_range *range)  in validate_cblock_range()
3265 static int request_invalidation(struct cache *cache, struct cblock_range *range)  in request_invalidation()
3287 static int process_invalidate_cblocks_message(struct cache *cache, unsigned int count,  in process_invalidate_cblocks_message()
3331 	struct cache *cache = ti->private;  in cache_message()  local
3355 	struct cache *cache = ti->private;  in cache_iterate_devices()  local
3368 static void disable_passdown_if_not_supported(struct cache *cache)  in disable_passdown_if_not_supported()
3390 static void set_discard_limits(struct cache *cache, struct queue_limits *limits)  in set_discard_limits()
3416 	struct cache *cache = ti->private;  in cache_io_hints()  local