366 struct cache {  struct
376 	struct dm_cache_metadata *cmd;  argument
391 	struct dm_dev *cache_dev;  argument
400 	 * Size of the cache device in blocks.  argument
402 	dm_cblock_t cache_size;  argument
407 	spinlock_t invalidation_lock;
408 	struct list_head invalidation_requests;
410 	sector_t migration_threshold;
411 	wait_queue_head_t migration_wait;
412 	atomic_t nr_allocated_migrations;
418 	atomic_t nr_io_migrations;
420 	struct bio_list deferred_bios;
422 	struct rw_semaphore quiesce_lock;
446 	 * cache_size entries, dirty if set  argument
452 	struct dm_cache_policy *policy;  argument
457 	struct cache_features features;  argument
459 	struct cache_stats stats;  argument
461 	bool need_tick_bio:1;
462 	bool sized:1;
463 	bool invalidate:1;
464 	bool commit_requested:1;
488 struct dm_cache_migration {  argument
490 	struct cache *cache;  member
502 static bool writethrough_mode(struct cache *cache)  in writethrough_mode()
507 static bool writeback_mode(struct cache *cache)  in writeback_mode()
512 static inline bool passthrough_mode(struct cache *cache)  in passthrough_mode()
519 static void wake_deferred_bio_worker(struct cache *cache)  in wake_deferred_bio_worker()
524 static void wake_migration_worker(struct cache *cache)  in wake_migration_worker()
534 static struct dm_bio_prison_cell_v2 *alloc_prison_cell(struct cache *cache)  in alloc_prison_cell()
539 static void free_prison_cell(struct cache *cache, struct dm_bio_prison_cell_v2 *cell)  in free_prison_cell()
544 static struct dm_cache_migration *alloc_migration(struct cache *cache)  in alloc_migration()
560 	struct cache *cache = mg->cache;  in free_migration()  local
622 static void defer_bio(struct cache *cache, struct bio *bio)  in defer_bio()
631 static void defer_bios(struct cache *cache, struct bio_list *bios)  in defer_bios()
643 static bool bio_detain_shared(struct cache *cache, dm_oblock_t oblock, struct bio *bio)  in bio_detain_shared()
674 static bool is_dirty(struct cache *cache, dm_cblock_t b)  in is_dirty()
679 static void set_dirty(struct cache *cache, dm_cblock_t cblock)  in set_dirty()
691 static void force_set_dirty(struct cache *cache, dm_cblock_t cblock)  in force_set_dirty()
698 static void force_clear_dirty(struct cache *cache, dm_cblock_t cblock)  in force_clear_dirty()
710 static bool block_size_is_power_of_two(struct cache *cache)  in block_size_is_power_of_two()
722 static dm_block_t oblocks_per_dblock(struct cache *cache)  in oblocks_per_dblock()
734 static dm_dblock_t oblock_to_dblock(struct cache *cache, dm_oblock_t oblock)  in oblock_to_dblock()
740 static void set_discard(struct cache *cache, dm_dblock_t b)  in set_discard()
750 static void clear_discard(struct cache *cache, dm_dblock_t b)  in clear_discard()
757 static bool is_discarded(struct cache *cache, dm_dblock_t b)  in is_discarded()
767 static bool is_discarded_oblock(struct cache *cache, dm_oblock_t b)  in is_discarded_oblock()
781 static void remap_to_origin(struct cache *cache, struct bio *bio)  in remap_to_origin()
786 static void remap_to_cache(struct cache *cache, struct bio *bio,  in remap_to_cache()
803 static void check_if_tick_bio_needed(struct cache *cache, struct bio *bio)  in check_if_tick_bio_needed()
817 static void __remap_to_origin_clear_discard(struct cache *cache, struct bio *bio,  in __remap_to_origin_clear_discard()
827 static void remap_to_origin_clear_discard(struct cache *cache, struct bio *bio,  in remap_to_origin_clear_discard()
834 static void remap_to_cache_dirty(struct cache *cache, struct bio *bio,  in remap_to_cache_dirty()
845 static dm_oblock_t get_bio_block(struct cache *cache, struct bio *bio)  in get_bio_block()
857 static bool accountable_bio(struct cache *cache, struct bio *bio)  in accountable_bio()
862 static void accounted_begin(struct cache *cache, struct bio *bio)  in accounted_begin()
873 static void accounted_complete(struct cache *cache, struct bio *bio)  in accounted_complete()
880 static void accounted_request(struct cache *cache, struct bio *bio)  in accounted_request()
888 	struct cache *cache = context;  in issue_op()  local
896 static void remap_to_origin_and_cache(struct cache *cache, struct bio *bio,  in remap_to_origin_and_cache()
917 static enum cache_metadata_mode get_cache_mode(struct cache *cache)  in get_cache_mode()
922 static const char *cache_device_name(struct cache *cache)  in cache_device_name()
927 static void notify_mode_switch(struct cache *cache, enum cache_metadata_mode mode)  in notify_mode_switch()
940 static void set_cache_mode(struct cache *cache, enum cache_metadata_mode new_mode)  in set_cache_mode()
981 static void abort_transaction(struct cache *cache)  in abort_transaction()
1000 static void metadata_operation_failed(struct cache *cache, const char *op, int r)  in metadata_operation_failed()
1010 static void load_stats(struct cache *cache)  in load_stats()
1021 static void save_stats(struct cache *cache)  in save_stats()
1060 static void inc_io_migrations(struct cache *cache)  in inc_io_migrations()
1065 static void dec_io_migrations(struct cache *cache)  in dec_io_migrations()
1075 static void calc_discard_block_range(struct cache *cache, struct bio *bio,  in calc_discard_block_range()
1091 static void prevent_background_work(struct cache *cache)  in prevent_background_work()
1098 static void allow_background_work(struct cache *cache)  in allow_background_work()
1105 static bool background_work_begin(struct cache *cache)  in background_work_begin()
1116 static void background_work_end(struct cache *cache)  in background_work_end()
1125 static bool bio_writes_complete_block(struct cache *cache, struct bio *bio)  in bio_writes_complete_block()
1131 static bool optimisable_bio(struct cache *cache, struct bio *bio, dm_oblock_t block)  in optimisable_bio()
1163 	struct cache *cache = mg->cache;  in copy()  local
1179 static void bio_drop_shared_lock(struct cache *cache, struct bio *bio)  in bio_drop_shared_lock()
1191 	struct cache *cache = mg->cache;  in overwrite_endio()  local
1237 	struct cache *cache = mg->cache;  in mg_complete()  local
1305 	struct cache *cache = mg->cache;  in mg_update_metadata()  local
1407 	struct cache *cache = mg->cache;  in mg_full_copy()  local
1460 	struct cache *cache = mg->cache;  in mg_lock_writes()  local
1491 static int mg_start(struct cache *cache, struct policy_work *op, struct bio *bio)  in mg_start()
1518 	struct cache *cache = mg->cache;  in invalidate_complete()  local
1539 static int invalidate_cblock(struct cache *cache, dm_cblock_t cblock)  in invalidate_cblock()
1566 	struct cache *cache = mg->cache;  in invalidate_remove()  local
1585 	struct cache *cache = mg->cache;  in invalidate_lock()  local
1617 static int invalidate_start(struct cache *cache, dm_cblock_t cblock,  in invalidate_start()
1643 static enum busy spare_migration_bandwidth(struct cache *cache)  in spare_migration_bandwidth()
1655 static void inc_hit_counter(struct cache *cache, struct bio *bio)  in inc_hit_counter()
1661 static void inc_miss_counter(struct cache *cache, struct bio *bio)  in inc_miss_counter()
1669 static int map_bio(struct cache *cache, struct bio *bio, dm_oblock_t block,  in map_bio()
1784 static bool process_bio(struct cache *cache, struct bio *bio)  in process_bio()
1797 static int commit(struct cache *cache, bool clean_shutdown)  in commit()
1817 	struct cache *cache = context;  in commit_op()  local
1827 static bool process_flush_bio(struct cache *cache, struct bio *bio)  in process_flush_bio()
1840 static bool process_discard_bio(struct cache *cache, struct bio *bio)  in process_discard_bio()
1864 	struct cache *cache = container_of(ws, struct cache, deferred_bio_worker);  in process_deferred_bios()  local
1896 static void requeue_deferred_bios(struct cache *cache)  in requeue_deferred_bios()
1917 	struct cache *cache = container_of(to_delayed_work(ws), struct cache, waker);  in do_waker()  local
1929 	struct cache *cache = container_of(ws, struct cache, migration_worker);  in check_migrations()  local
1959 static void destroy(struct cache *cache)  in destroy()
2006 	struct cache *cache = ti->private;  in cache_dtr()  local
2315 static int process_config_option(struct cache *cache, const char *key, const char *value)  in process_config_option()
2330 static int set_config_value(struct cache *cache, const char *key, const char *value)  in set_config_value()
2343 static int set_config_values(struct cache *cache, int argc, const char **argv)  in set_config_values()
2364 static int create_cache_policy(struct cache *cache, struct cache_args *ca,  in create_cache_policy()
2407 static void set_cache_size(struct cache *cache, dm_cblock_t size)  in set_cache_size()
2426 	struct cache *cache;  in cache_create()  local
2618 static int copy_ctr_args(struct cache *cache, int argc, const char **argv)  in copy_ctr_args()
2646 	struct cache *cache = NULL;  in cache_ctr()  local
2679 	struct cache *cache = ti->private;  in cache_map()  local
2711 	struct cache *cache = ti->private;  in cache_end_io()  local
2729 static int write_dirty_bitset(struct cache *cache)  in write_dirty_bitset()
2743 static int write_discard_bitset(struct cache *cache)  in write_discard_bitset()
2770 static int write_hints(struct cache *cache)  in write_hints()
2789 static bool sync_metadata(struct cache *cache)  in sync_metadata()
2821 	struct cache *cache = ti->private;  in cache_postsuspend()  local
2844 	struct cache *cache = context;  in load_mapping()  local
2866 	struct cache *cache;  member
2876 static void discard_load_info_init(struct cache *cache,  in discard_load_info_init()
2943 static dm_cblock_t get_cache_dev_size(struct cache *cache)  in get_cache_dev_size()
2950 static bool can_resize(struct cache *cache, dm_cblock_t new_size)  in can_resize()
2976 static int resize_cache_dev(struct cache *cache, dm_cblock_t new_size)  in resize_cache_dev()
2995 	struct cache *cache = ti->private;  in cache_preresume()  local
3056 	struct cache *cache = ti->private;  in cache_resume()  local
3063 static void emit_flags(struct cache *cache, char *result,  in emit_flags()
3116 	struct cache *cache = ti->private;  in cache_status()  local
3223 static int parse_cblock_range(struct cache *cache, const char *str,  in parse_cblock_range()
3260 static int validate_cblock_range(struct cache *cache, struct cblock_range *range)  in validate_cblock_range()
3292 static int request_invalidation(struct cache *cache, struct cblock_range *range)  in request_invalidation()
3314 static int process_invalidate_cblocks_message(struct cache *cache, unsigned count,  in process_invalidate_cblocks_message()
3358 	struct cache *cache = ti->private;  in cache_message()  local
3382 	struct cache *cache = ti->private;  in cache_iterate_devices()  local
3402 static void disable_passdown_if_not_supported(struct cache *cache)  in disable_passdown_if_not_supported()
3425 static void set_discard_limits(struct cache *cache, struct queue_limits *limits)  in set_discard_limits()
3451 	struct cache *cache = ti->private;  in cache_io_hints()  local