229 struct pool {  struct
231 	struct dm_target *ti;	/* Only set if a pool target is bound */  argument
233 	struct mapped_device *pool_md;  argument
236 	struct dm_pool_metadata *pmd;  argument
242 	struct pool_features pf;  argument
243 	bool low_water_triggered:1;	/* A dm event has been sent */
244 	bool suspended:1;
245 	bool out_of_data_space:1;
247 	struct dm_bio_prison *prison;
248 	struct dm_kcopyd_client *copier;
250 	struct work_struct worker;
251 	struct workqueue_struct *wq;
252 	struct throttle throttle;
253 	struct delayed_work waker;
254 	struct delayed_work no_space_timeout;
256 	unsigned long last_commit_jiffies;
257 	unsigned ref_count;
259 	spinlock_t lock;
260 	struct bio_list deferred_flush_bios;
284 	mempool_t mapping_pool;  argument
289 static void metadata_operation_failed(struct pool *pool, const char *op, int r);  argument
291 static enum pool_mode get_pool_mode(struct pool *pool)  in get_pool_mode()
296 static void notify_of_pool_mode_change(struct pool *pool)  in notify_of_pool_mode_change()
326 	struct pool *pool;  member
345 	struct pool *pool;  member
366 static bool block_size_is_power_of_two(struct pool *pool)  in block_size_is_power_of_two()
371 static sector_t block_to_sectors(struct pool *pool, dm_block_t b)  in block_to_sectors()
436 static void wake_worker(struct pool *pool)  in wake_worker()
443 static int bio_detain(struct pool *pool, struct dm_cell_key *key, struct bio *bio,  in bio_detain()
466 static void cell_release(struct pool *pool,  in cell_release()
474 static void cell_visit_release(struct pool *pool,  in cell_visit_release()
483 static void cell_release_no_holder(struct pool *pool,  in cell_release_no_holder()
491 static void cell_error_with_code(struct pool *pool,  in cell_error_with_code()
498 static blk_status_t get_pool_io_error_code(struct pool *pool)  in get_pool_io_error_code()
503 static void cell_error(struct pool *pool, struct dm_bio_prison_cell *cell)  in cell_error()
508 static void cell_success(struct pool *pool, struct dm_bio_prison_cell *cell)  in cell_success()
513 static void cell_requeue(struct pool *pool, struct dm_bio_prison_cell *cell)  in cell_requeue()
539 static void __pool_table_insert(struct pool *pool)  in __pool_table_insert()
545 static void __pool_table_remove(struct pool *pool)  in __pool_table_remove()
553 	struct pool *pool = NULL, *tmp;  in __pool_table_lookup()  local
569 	struct pool *pool = NULL, *tmp;  in __pool_table_lookup_metadata_dev()  local
626 	struct pool *pool = tc->pool;  in requeue_deferred_cells()  local
655 static void error_retry_list_with_code(struct pool *pool, blk_status_t error)  in error_retry_list_with_code()
665 static void error_retry_list(struct pool *pool)  in error_retry_list()
679 	struct pool *pool = tc->pool;  in get_bio_block()  local
696 	struct pool *pool = tc->pool;  in get_bio_block_range()  local
720 	struct pool *pool = tc->pool;  in remap()  local
744 static void inc_all_io_entry(struct pool *pool, struct bio *bio)  in inc_all_io_entry()
757 	struct pool *pool = tc->pool;  in issue()  local
832 	struct pool *pool = m->tc->pool;  in __complete_mapping_preparation()  local
843 	struct pool *pool = m->tc->pool;  in complete_mapping_preparation()  local
885 	struct pool *pool = tc->pool;  in cell_defer_no_holder()  local
963 	struct pool *pool = tc->pool;  in complete_overwrite_bio()  local
996 	struct pool *pool = tc->pool;  in process_prepared_mapping()  local
1087 	struct pool *pool = tc->pool;  in passdown_double_checking_shared_status()  local
1129 	struct pool *pool = m->tc->pool;  in queue_passdown_pt2()  local
1151 	struct pool *pool = tc->pool;  in process_prepared_discard_passdown_pt1()  local
1208 	struct pool *pool = tc->pool;  in process_prepared_discard_passdown_pt2()  local
1226 static void process_prepared(struct pool *pool, struct list_head *head,  in process_prepared()
1244 static int io_overlaps_block(struct pool *pool, struct bio *bio)  in io_overlaps_block()
1250 static int io_overwrites_block(struct pool *pool, struct bio *bio)  in io_overwrites_block()
1263 static int ensure_next_mapping(struct pool *pool)  in ensure_next_mapping()
1273 static struct dm_thin_new_mapping *get_next_mapping(struct pool *pool)  in get_next_mapping()
1304 	struct pool *pool = tc->pool;  in remap_and_issue_overwrite()  local
1323 	struct pool *pool = tc->pool;  in schedule_copy()  local
1391 	struct pool *pool = tc->pool;  in schedule_zero()  local
1420 	struct pool *pool = tc->pool;  in schedule_external_copy()  local
1447 static bool is_read_only(struct pool *pool)  in is_read_only()
1452 static void check_for_metadata_space(struct pool *pool)  in check_for_metadata_space()
1470 static void check_for_data_space(struct pool *pool)  in check_for_data_space()
1492 static int commit(struct pool *pool)  in commit()
1510 static void check_low_water_mark(struct pool *pool, dm_block_t free_blocks)  in check_low_water_mark()
1526 	struct pool *pool = tc->pool;  in alloc_data_block()  local
1599 static blk_status_t should_error_unserviceable_bio(struct pool *pool)  in should_error_unserviceable_bio()
1623 static void handle_unserviceable_bio(struct pool *pool, struct bio *bio)  in handle_unserviceable_bio()
1634 static void retry_bios_on_resume(struct pool *pool, struct dm_bio_prison_cell *cell)  in retry_bios_on_resume()
1656 	struct pool *pool = tc->pool;  in process_discard_cell_no_passdown()  local
1676 	struct pool *pool = tc->pool;  in break_up_discard_bio()  local
1793 	struct pool *pool = tc->pool;  in break_sharing()  local
1861 	struct pool *pool = tc->pool;  in process_shared_bio()  local
1894 	struct pool *pool = tc->pool;  in provision_block()  local
1941 	struct pool *pool = tc->pool;  in process_cell()  local
1995 	struct pool *pool = tc->pool;  in process_bio()  local
2096 static int need_commit_due_to_time(struct pool *pool)  in need_commit_due_to_time()
2168 	struct pool *pool = tc->pool;  in process_thin_deferred_bios()  local
2241 static unsigned sort_cells(struct pool *pool, struct list_head *cells)  in sort_cells()
2261 	struct pool *pool = tc->pool;  in process_thin_deferred_cells()  local
2313 static struct thin_c *get_first_thin(struct pool *pool)  in get_first_thin()
2327 static struct thin_c *get_next_thin(struct pool *pool, struct thin_c *tc)  in get_next_thin()
2344 static void process_deferred_bios(struct pool *pool)  in process_deferred_bios()
2402 	struct pool *pool = container_of(ws, struct pool, worker);  in do_worker()  local
2423 	struct pool *pool = container_of(to_delayed_work(ws), struct pool, waker);  in do_waker()  local
2435 	struct pool *pool = container_of(to_delayed_work(ws), struct pool,  in do_no_space_timeout()  local
2462 static void pool_work_wait(struct pool_work *pw, struct pool *pool,  in pool_work_wait()
2513 static void set_discard_callbacks(struct pool *pool)  in set_discard_callbacks()
2527 static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)  in set_pool_mode()
2625 static void abort_transaction(struct pool *pool)  in abort_transaction()
2641 static void metadata_operation_failed(struct pool *pool, const char *op, int r)  in metadata_operation_failed()
2661 	struct pool *pool = tc->pool;  in thin_defer_bio()  local
2672 	struct pool *pool = tc->pool;  in thin_defer_bio_with_throttle()  local
2681 	struct pool *pool = tc->pool;  in thin_defer_cell()  local
2798 static void requeue_bios(struct pool *pool)  in requeue_bios()
2833 	struct pool *pool = pt->pool;  in disable_passdown_if_not_supported()  local
2854 static int bind_control_target(struct pool *pool, struct dm_target *ti)  in bind_control_target()
2880 static void unbind_control_target(struct pool *pool, struct dm_target *ti)  in unbind_control_target()
2899 static void __pool_destroy(struct pool *pool)  in __pool_destroy()
2932 	struct pool *pool;  in pool_create()  local
3061 static void __pool_inc(struct pool *pool)  in __pool_inc()
3067 static void __pool_dec(struct pool *pool)  in __pool_dec()
3081 	struct pool *pool = __pool_table_lookup_metadata_dev(metadata_dev);  in __pool_find()  local
3182 	struct pool *pool = context;  in metadata_low_callback()  local
3203 	struct pool *pool = context;  in metadata_pre_commit_callback()  local
3281 	struct pool *pool;  in pool_ctr()  local
3432 	struct pool *pool = pt->pool;  in pool_map()  local
3449 	struct pool *pool = pt->pool;  in maybe_resize_data_dev()  local
3497 	struct pool *pool = pt->pool;  in maybe_resize_metadata_dev()  local
3560 	struct pool *pool = pt->pool;  in pool_preresume()  local
3583 static void pool_suspend_active_thins(struct pool *pool)  in pool_suspend_active_thins()
3595 static void pool_resume_active_thins(struct pool *pool)  in pool_resume_active_thins()
3610 	struct pool *pool = pt->pool;  in pool_resume()  local
3630 	struct pool *pool = pt->pool;  in pool_presuspend()  local
3642 	struct pool *pool = pt->pool;  in pool_presuspend_undo()  local
3654 	struct pool *pool = pt->pool;  in pool_postsuspend()  local
3685 static int process_create_thin_mesg(unsigned argc, char **argv, struct pool *pool)  in process_create_thin_mesg()
3708 static int process_create_snap_mesg(unsigned argc, char **argv, struct pool *pool)  in process_create_snap_mesg()
3736 static int process_delete_mesg(unsigned argc, char **argv, struct pool *pool)  in process_delete_mesg()
3756 static int process_set_transaction_id_mesg(unsigned argc, char **argv, struct pool *pool)  in process_set_transaction_id_mesg()
3785 static int process_reserve_metadata_snap_mesg(unsigned argc, char **argv, struct pool *pool)  in process_reserve_metadata_snap_mesg()
3802 static int process_release_metadata_snap_mesg(unsigned argc, char **argv, struct pool *pool)  in process_release_metadata_snap_mesg()
3831 	struct pool *pool = pt->pool;  in pool_message()  local
3911 	struct pool *pool = pt->pool;  in pool_status()  local
4033 	struct pool *pool = pt->pool;  in pool_io_hints()  local
4316 	struct pool *pool = h->tc->pool;  in thin_endio()  local
4440 	struct pool *pool = tc->pool;  in thin_iterate_devices()  local
4460 	struct pool *pool = tc->pool;  in thin_io_hints()  local