69 struct clone {  struct
86 	struct dm_clone_metadata *cmd;  argument
92 	struct bio flush_bio;
95 	struct hash_table_bucket *ht;
97 	atomic_t ios_in_flight;
99 	wait_queue_head_t hydration_stopped;
101 	mempool_t hydration_pool;
103 	unsigned long last_commit_jiffies;
112 	spinlock_t lock;
113 	struct bio_list deferred_bios;
114 	struct bio_list deferred_discard_bios;
115 	struct bio_list deferred_flush_bios;
116 	struct bio_list deferred_flush_completions;
142 	enum clone_metadata_mode mode;  argument
147  * dm-clone flags  argument
158 static enum clone_metadata_mode get_clone_mode(struct clone *clone)  in get_clone_mode()
163 static const char *clone_device_name(struct clone *clone)  in clone_device_name()
168 static void __set_clone_mode(struct clone *clone, enum clone_metadata_mode new_mode)  in __set_clone_mode()
202 static void __abort_transaction(struct clone *clone)  in __abort_transaction()
216 static void __reload_in_core_bitset(struct clone *clone)  in __reload_in_core_bitset()
231 static void __metadata_operation_failed(struct clone *clone, const char *op, int r)  in __metadata_operation_failed()
250 static inline void wakeup_hydration_waiters(struct clone *clone)  in wakeup_hydration_waiters()
255 static inline void wake_worker(struct clone *clone)  in wake_worker()
265 static inline void remap_to_source(struct clone *clone, struct bio *bio)  in remap_to_source()
270 static inline void remap_to_dest(struct clone *clone, struct bio *bio)  in remap_to_dest()
275 static bool bio_triggers_commit(struct clone *clone, struct bio *bio)  in bio_triggers_commit()
282 static inline sector_t region_to_sector(struct clone *clone, unsigned long region_nr)  in region_to_sector()
288 static inline unsigned long bio_to_region(struct clone *clone, struct bio *bio)  in bio_to_region()
294 static void bio_region_range(struct clone *clone, struct bio *bio,  in bio_region_range()
309 static inline bool is_overwrite_bio(struct clone *clone, struct bio *bio)  in is_overwrite_bio()
345 static void issue_bio(struct clone *clone, struct bio *bio)  in issue_bio()
378 static void remap_and_issue(struct clone *clone, struct bio *bio)  in remap_and_issue()
391 static void issue_deferred_bios(struct clone *clone, struct bio_list *bios)  in issue_deferred_bios()
416 static void complete_overwrite_bio(struct clone *clone, struct bio *bio)  in complete_overwrite_bio()
461 static void complete_discard_bio(struct clone *clone, struct bio *bio, bool success)  in complete_discard_bio()
480 static void process_discard_bio(struct clone *clone, struct bio *bio)  in process_discard_bio()
536 	struct clone *clone;  member
582 static int hash_table_init(struct clone *clone)  in hash_table_init()
603 static void hash_table_exit(struct clone *clone)  in hash_table_exit()
608 static struct hash_table_bucket *get_hash_table_bucket(struct clone *clone,  in get_hash_table_bucket()
668 static struct dm_clone_region_hydration *alloc_hydration(struct clone *clone)  in alloc_hydration()
710 	struct clone *clone = hd->clone;  in hydration_update_metadata()  local
743 	struct clone *clone = hd->clone;  in hydration_complete()  local
772 	struct clone *clone = hd->clone;  in hydration_kcopyd_callback()  local
804 	struct clone *clone = hd->clone;  in hydration_copy()  local
880 static void hydrate_bio_region(struct clone *clone, struct bio *bio)  in hydrate_bio_region()
987 	struct clone *clone = hd->clone;  in __batch_hydration()  local
1022 static unsigned long __start_next_hydration(struct clone *clone,  in __start_next_hydration()
1067 static void do_hydration(struct clone *clone)  in do_hydration()
1126 static bool need_commit_due_to_time(struct clone *clone)  in need_commit_due_to_time()
1135 static int commit_metadata(struct clone *clone, bool *dest_dev_flushed)  in commit_metadata()
1185 static void process_deferred_discards(struct clone *clone)  in process_deferred_discards()
1223 static void process_deferred_bios(struct clone *clone)  in process_deferred_bios()
1238 static void process_deferred_flush_bios(struct clone *clone)  in process_deferred_flush_bios()
1290 	struct clone *clone = container_of(work, typeof(*clone), worker);  in do_worker()  local
1317 	struct clone *clone = container_of(to_delayed_work(work), struct clone, waker);  in do_waker()  local
1330 	struct clone *clone = ti->private;  in clone_map()  local
1389 	struct clone *clone = ti->private;  in clone_endio()  local
1396 static void emit_flags(struct clone *clone, char *result, unsigned int maxlen,  in emit_flags()
1416 static void emit_core_args(struct clone *clone, char *result,  in emit_core_args()
1446 	struct clone *clone = ti->private;  in clone_status()  local
1546 static int parse_feature_args(struct dm_arg_set *as, struct clone *clone)  in parse_feature_args()
1584 static int parse_core_args(struct dm_arg_set *as, struct clone *clone)  in parse_core_args()
1640 static int parse_region_size(struct clone *clone, struct dm_arg_set *as, char **error)  in parse_region_size()
1686 static int parse_metadata_dev(struct clone *clone, struct dm_arg_set *as, char **error)  in parse_metadata_dev()
1707 static int parse_dest_dev(struct clone *clone, struct dm_arg_set *as, char **error)  in parse_dest_dev()
1729 static int parse_source_dev(struct clone *clone, struct dm_arg_set *as, char **error)  in parse_source_dev()
1751 static int copy_ctr_args(struct clone *clone, int argc, const char **argv, char **error)  in copy_ctr_args()
1784 	struct clone *clone;  in clone_ctr()  local
1958 	struct clone *clone = ti->private;  in clone_dtr()  local
1983 	struct clone *clone = ti->private;  in clone_postsuspend()  local
2021 	struct clone *clone = ti->private;  in clone_resume()  local
2038 static void disable_passdown_if_not_supported(struct clone *clone)  in disable_passdown_if_not_supported()
2060 static void set_discard_limits(struct clone *clone, struct queue_limits *limits)  in set_discard_limits()
2087 	struct clone *clone = ti->private;  in clone_io_hints()  local
2108 	struct clone *clone = ti->private;  in clone_iterate_devices()  local
2121 static void set_hydration_threshold(struct clone *clone, unsigned int nr_regions)  in set_hydration_threshold()
2133 static void set_hydration_batch_size(struct clone *clone, unsigned int nr_regions)  in set_hydration_batch_size()
2138 static void enable_hydration(struct clone *clone)  in enable_hydration()
2144 static void disable_hydration(struct clone *clone)  in disable_hydration()
2152 	struct clone *clone = ti->private;  in clone_message()  local