296 struct cache {  struct
306 	struct dm_cache_metadata *cmd;  argument
321 	struct dm_dev *cache_dev;  argument
330 	 * Size of the cache device in blocks.  argument
332 	dm_cblock_t cache_size;  argument
337 	spinlock_t invalidation_lock;
338 	struct list_head invalidation_requests;
340 	sector_t migration_threshold;
341 	wait_queue_head_t migration_wait;
342 	atomic_t nr_allocated_migrations;
348 	atomic_t nr_io_migrations;
350 	struct bio_list deferred_bios;
352 	struct rw_semaphore quiesce_lock;
376 	 * cache_size entries, dirty if set  argument
382 	struct dm_cache_policy *policy;  argument
387 	struct cache_features features;  argument
389 	struct cache_stats stats;  argument
391 	bool need_tick_bio:1;
392 	bool sized:1;
393 	bool invalidate:1;
394 	bool commit_requested:1;
418 struct dm_cache_migration {  argument
420 	struct cache *cache;  member
432 static bool writethrough_mode(struct cache *cache)  in writethrough_mode()
437 static bool writeback_mode(struct cache *cache)  in writeback_mode()
442 static inline bool passthrough_mode(struct cache *cache)  in passthrough_mode()
449 static void wake_deferred_bio_worker(struct cache *cache)  in wake_deferred_bio_worker()
454 static void wake_migration_worker(struct cache *cache)  in wake_migration_worker()
464 static struct dm_bio_prison_cell_v2 *alloc_prison_cell(struct cache *cache)  in alloc_prison_cell()
469 static void free_prison_cell(struct cache *cache, struct dm_bio_prison_cell_v2 *cell)  in free_prison_cell()
474 static struct dm_cache_migration *alloc_migration(struct cache *cache)  in alloc_migration()
490 	struct cache *cache = mg->cache;  in free_migration()  local
552 static void defer_bio(struct cache *cache, struct bio *bio)  in defer_bio()
561 static void defer_bios(struct cache *cache, struct bio_list *bios)  in defer_bios()
573 static bool bio_detain_shared(struct cache *cache, dm_oblock_t oblock, struct bio *bio)  in bio_detain_shared()
604 static bool is_dirty(struct cache *cache, dm_cblock_t b)  in is_dirty()
609 static void set_dirty(struct cache *cache, dm_cblock_t cblock)  in set_dirty()
621 static void force_set_dirty(struct cache *cache, dm_cblock_t cblock)  in force_set_dirty()
628 static void force_clear_dirty(struct cache *cache, dm_cblock_t cblock)  in force_clear_dirty()
640 static bool block_size_is_power_of_two(struct cache *cache)  in block_size_is_power_of_two()
652 static dm_block_t oblocks_per_dblock(struct cache *cache)  in oblocks_per_dblock()
664 static dm_dblock_t oblock_to_dblock(struct cache *cache, dm_oblock_t oblock)  in oblock_to_dblock()
670 static void set_discard(struct cache *cache, dm_dblock_t b)  in set_discard()
680 static void clear_discard(struct cache *cache, dm_dblock_t b)  in clear_discard()
687 static bool is_discarded(struct cache *cache, dm_dblock_t b)  in is_discarded()
697 static bool is_discarded_oblock(struct cache *cache, dm_oblock_t b)  in is_discarded_oblock()
711 static void remap_to_origin(struct cache *cache, struct bio *bio)  in remap_to_origin()
716 static void remap_to_cache(struct cache *cache, struct bio *bio,  in remap_to_cache()
733 static void check_if_tick_bio_needed(struct cache *cache, struct bio *bio)  in check_if_tick_bio_needed()
747 static void remap_to_origin_clear_discard(struct cache *cache, struct bio *bio,  in remap_to_origin_clear_discard()
757 static void remap_to_cache_dirty(struct cache *cache, struct bio *bio,  in remap_to_cache_dirty()
768 static dm_oblock_t get_bio_block(struct cache *cache, struct bio *bio)  in get_bio_block()
780 static bool accountable_bio(struct cache *cache, struct bio *bio)  in accountable_bio()
785 static void accounted_begin(struct cache *cache, struct bio *bio)  in accounted_begin()
796 static void accounted_complete(struct cache *cache, struct bio *bio)  in accounted_complete()
803 static void accounted_request(struct cache *cache, struct bio *bio)  in accounted_request()
811 	struct cache *cache = context;  in issue_op()  local
819 static void remap_to_origin_and_cache(struct cache *cache, struct bio *bio,  in remap_to_origin_and_cache()
839 static enum cache_metadata_mode get_cache_mode(struct cache *cache)  in get_cache_mode()
844 static const char *cache_device_name(struct cache *cache)  in cache_device_name()
849 static void notify_mode_switch(struct cache *cache, enum cache_metadata_mode mode)  in notify_mode_switch()
862 static void set_cache_mode(struct cache *cache, enum cache_metadata_mode new_mode)  in set_cache_mode()
903 static void abort_transaction(struct cache *cache)  in abort_transaction()
922 static void metadata_operation_failed(struct cache *cache, const char *op, int r)  in metadata_operation_failed()
932 static void load_stats(struct cache *cache)  in load_stats()
943 static void save_stats(struct cache *cache)  in save_stats()
982 static void inc_io_migrations(struct cache *cache)  in inc_io_migrations()
987 static void dec_io_migrations(struct cache *cache)  in dec_io_migrations()
997 static void calc_discard_block_range(struct cache *cache, struct bio *bio,  in calc_discard_block_range()
1013 static void prevent_background_work(struct cache *cache)  in prevent_background_work()
1020 static void allow_background_work(struct cache *cache)  in allow_background_work()
1027 static bool background_work_begin(struct cache *cache)  in background_work_begin()
1038 static void background_work_end(struct cache *cache)  in background_work_end()
1047 static bool bio_writes_complete_block(struct cache *cache, struct bio *bio)  in bio_writes_complete_block()
1053 static bool optimisable_bio(struct cache *cache, struct bio *bio, dm_oblock_t block)  in optimisable_bio()
1085 	struct cache *cache = mg->cache;  in copy()  local
1101 static void bio_drop_shared_lock(struct cache *cache, struct bio *bio)  in bio_drop_shared_lock()
1113 	struct cache *cache = mg->cache;  in overwrite_endio()  local
1159 	struct cache *cache = mg->cache;  in mg_complete()  local
1227 	struct cache *cache = mg->cache;  in mg_update_metadata()  local
1329 	struct cache *cache = mg->cache;  in mg_full_copy()  local
1382 	struct cache *cache = mg->cache;  in mg_lock_writes()  local
1413 static int mg_start(struct cache *cache, struct policy_work *op, struct bio *bio)  in mg_start()
1440 	struct cache *cache = mg->cache;  in invalidate_complete()  local
1461 static int invalidate_cblock(struct cache *cache, dm_cblock_t cblock)  in invalidate_cblock()
1488 	struct cache *cache = mg->cache;  in invalidate_remove()  local
1507 	struct cache *cache = mg->cache;  in invalidate_lock()  local
1539 static int invalidate_start(struct cache *cache, dm_cblock_t cblock,  in invalidate_start()
1565 static enum busy spare_migration_bandwidth(struct cache *cache)  in spare_migration_bandwidth()
1577 static void inc_hit_counter(struct cache *cache, struct bio *bio)  in inc_hit_counter()
1583 static void inc_miss_counter(struct cache *cache, struct bio *bio)  in inc_miss_counter()
1591 static int map_bio(struct cache *cache, struct bio *bio, dm_oblock_t block,  in map_bio()
1706 static bool process_bio(struct cache *cache, struct bio *bio)  in process_bio()
1719 static int commit(struct cache *cache, bool clean_shutdown)  in commit()
1739 	struct cache *cache = context;  in commit_op()  local
1749 static bool process_flush_bio(struct cache *cache, struct bio *bio)  in process_flush_bio()
1762 static bool process_discard_bio(struct cache *cache, struct bio *bio)  in process_discard_bio()
1786 	struct cache *cache = container_of(ws, struct cache, deferred_bio_worker);  in process_deferred_bios()  local
1818 static void requeue_deferred_bios(struct cache *cache)  in requeue_deferred_bios()
1839 	struct cache *cache = container_of(to_delayed_work(ws), struct cache, waker);  in do_waker()  local
1851 	struct cache *cache = container_of(ws, struct cache, migration_worker);  in check_migrations()  local
1881 static void destroy(struct cache *cache)  in destroy()
1928 	struct cache *cache = ti->private;  in cache_dtr()  local
2236 static int process_config_option(struct cache *cache, const char *key, const char *value)  in process_config_option()
2251 static int set_config_value(struct cache *cache, const char *key, const char *value)  in set_config_value()
2264 static int set_config_values(struct cache *cache, int argc, const char **argv)  in set_config_values()
2285 static int create_cache_policy(struct cache *cache, struct cache_args *ca,  in create_cache_policy()
2328 static void set_cache_size(struct cache *cache, dm_cblock_t size)  in set_cache_size()
2347 	struct cache *cache;  in cache_create()  local
2540 static int copy_ctr_args(struct cache *cache, int argc, const char **argv)  in copy_ctr_args()
2568 	struct cache *cache = NULL;  in cache_ctr()  local
2601 	struct cache *cache = ti->private;  in cache_map()  local
2633 	struct cache *cache = ti->private;  in cache_end_io()  local
2651 static int write_dirty_bitset(struct cache *cache)  in write_dirty_bitset()
2665 static int write_discard_bitset(struct cache *cache)  in write_discard_bitset()
2692 static int write_hints(struct cache *cache)  in write_hints()
2711 static bool sync_metadata(struct cache *cache)  in sync_metadata()
2743 	struct cache *cache = ti->private;  in cache_postsuspend()  local
2765 	struct cache *cache = context;  in load_mapping()  local
2783 	struct cache *cache;  member
2793 static void discard_load_info_init(struct cache *cache,  in discard_load_info_init()
2860 static dm_cblock_t get_cache_dev_size(struct cache *cache)  in get_cache_dev_size()
2867 static bool can_resize(struct cache *cache, dm_cblock_t new_size)  in can_resize()
2893 static int resize_cache_dev(struct cache *cache, dm_cblock_t new_size)  in resize_cache_dev()
2912 	struct cache *cache = ti->private;  in cache_preresume()  local
2973 	struct cache *cache = ti->private;  in cache_resume()  local
2980 static void emit_flags(struct cache *cache, char *result,  in emit_flags()
3033 	struct cache *cache = ti->private;  in cache_status()  local
3164 static int parse_cblock_range(struct cache *cache, const char *str,  in parse_cblock_range()
3201 static int validate_cblock_range(struct cache *cache, struct cblock_range *range)  in validate_cblock_range()
3233 static int request_invalidation(struct cache *cache, struct cblock_range *range)  in request_invalidation()
3255 static int process_invalidate_cblocks_message(struct cache *cache, unsigned count,  in process_invalidate_cblocks_message()
3299 	struct cache *cache = ti->private;  in cache_message()  local
3323 	struct cache *cache = ti->private;  in cache_iterate_devices()  local
3336 static void disable_passdown_if_not_supported(struct cache *cache)  in disable_passdown_if_not_supported()
3358 static void set_discard_limits(struct cache *cache, struct queue_limits *limits)  in set_discard_limits()
3384 	struct cache *cache = ti->private;  in cache_io_hints()  local