Lines Matching refs:pool
229 struct pool { struct
286 static void metadata_operation_failed(struct pool *pool, const char *op, int r); argument
288 static enum pool_mode get_pool_mode(struct pool *pool) in get_pool_mode() argument
290 return pool->pf.mode; in get_pool_mode()
293 static void notify_of_pool_mode_change(struct pool *pool) in notify_of_pool_mode_change() argument
303 enum pool_mode mode = get_pool_mode(pool); in notify_of_pool_mode_change()
306 if (!pool->pf.error_if_no_space) in notify_of_pool_mode_change()
312 dm_table_event(pool->ti->table); in notify_of_pool_mode_change()
314 dm_device_name(pool->pool_md), in notify_of_pool_mode_change()
323 struct pool *pool; member
343 struct pool *pool; member
364 static bool block_size_is_power_of_two(struct pool *pool) in block_size_is_power_of_two() argument
366 return pool->sectors_per_block_shift >= 0; in block_size_is_power_of_two()
369 static sector_t block_to_sectors(struct pool *pool, dm_block_t b) in block_to_sectors() argument
371 return block_size_is_power_of_two(pool) ? in block_to_sectors()
372 (b << pool->sectors_per_block_shift) : in block_to_sectors()
373 (b * pool->sectors_per_block); in block_to_sectors()
398 sector_t s = block_to_sectors(tc->pool, data_b); in issue_discard()
399 sector_t len = block_to_sectors(tc->pool, data_e - data_b); in issue_discard()
434 static void wake_worker(struct pool *pool) in wake_worker() argument
436 queue_work(pool->wq, &pool->worker); in wake_worker()
441 static int bio_detain(struct pool *pool, struct dm_cell_key *key, struct bio *bio, in bio_detain() argument
451 cell_prealloc = dm_bio_prison_alloc_cell(pool->prison, GFP_NOIO); in bio_detain()
453 r = dm_bio_detain(pool->prison, key, bio, cell_prealloc, cell_result); in bio_detain()
459 dm_bio_prison_free_cell(pool->prison, cell_prealloc); in bio_detain()
464 static void cell_release(struct pool *pool, in cell_release() argument
468 dm_cell_release(pool->prison, cell, bios); in cell_release()
469 dm_bio_prison_free_cell(pool->prison, cell); in cell_release()
472 static void cell_visit_release(struct pool *pool, in cell_visit_release() argument
477 dm_cell_visit_release(pool->prison, fn, context, cell); in cell_visit_release()
478 dm_bio_prison_free_cell(pool->prison, cell); in cell_visit_release()
481 static void cell_release_no_holder(struct pool *pool, in cell_release_no_holder() argument
485 dm_cell_release_no_holder(pool->prison, cell, bios); in cell_release_no_holder()
486 dm_bio_prison_free_cell(pool->prison, cell); in cell_release_no_holder()
489 static void cell_error_with_code(struct pool *pool, in cell_error_with_code() argument
492 dm_cell_error(pool->prison, cell, error_code); in cell_error_with_code()
493 dm_bio_prison_free_cell(pool->prison, cell); in cell_error_with_code()
496 static blk_status_t get_pool_io_error_code(struct pool *pool) in get_pool_io_error_code() argument
498 return pool->out_of_data_space ? BLK_STS_NOSPC : BLK_STS_IOERR; in get_pool_io_error_code()
501 static void cell_error(struct pool *pool, struct dm_bio_prison_cell *cell) in cell_error() argument
503 cell_error_with_code(pool, cell, get_pool_io_error_code(pool)); in cell_error()
506 static void cell_success(struct pool *pool, struct dm_bio_prison_cell *cell) in cell_success() argument
508 cell_error_with_code(pool, cell, 0); in cell_success()
511 static void cell_requeue(struct pool *pool, struct dm_bio_prison_cell *cell) in cell_requeue() argument
513 cell_error_with_code(pool, cell, BLK_STS_DM_REQUEUE); in cell_requeue()
537 static void __pool_table_insert(struct pool *pool) in __pool_table_insert() argument
540 list_add(&pool->list, &dm_thin_pool_table.pools); in __pool_table_insert()
543 static void __pool_table_remove(struct pool *pool) in __pool_table_remove() argument
546 list_del(&pool->list); in __pool_table_remove()
549 static struct pool *__pool_table_lookup(struct mapped_device *md) in __pool_table_lookup()
551 struct pool *pool = NULL, *tmp; in __pool_table_lookup() local
557 pool = tmp; in __pool_table_lookup()
562 return pool; in __pool_table_lookup()
565 static struct pool *__pool_table_lookup_metadata_dev(struct block_device *md_dev) in __pool_table_lookup_metadata_dev()
567 struct pool *pool = NULL, *tmp; in __pool_table_lookup_metadata_dev() local
573 pool = tmp; in __pool_table_lookup_metadata_dev()
578 return pool; in __pool_table_lookup_metadata_dev()
625 struct pool *pool = tc->pool; in requeue_deferred_cells() local
637 cell_requeue(pool, cell); in requeue_deferred_cells()
656 static void error_retry_list_with_code(struct pool *pool, blk_status_t error) in error_retry_list_with_code() argument
661 list_for_each_entry_rcu(tc, &pool->active_thins, list) in error_retry_list_with_code()
666 static void error_retry_list(struct pool *pool) in error_retry_list() argument
668 error_retry_list_with_code(pool, get_pool_io_error_code(pool)); in error_retry_list()
680 struct pool *pool = tc->pool; in get_bio_block() local
683 if (block_size_is_power_of_two(pool)) in get_bio_block()
684 block_nr >>= pool->sectors_per_block_shift; in get_bio_block()
686 (void) sector_div(block_nr, pool->sectors_per_block); in get_bio_block()
697 struct pool *pool = tc->pool; in get_bio_block_range() local
701 b += pool->sectors_per_block - 1ull; /* so we round up */ in get_bio_block_range()
703 if (block_size_is_power_of_two(pool)) { in get_bio_block_range()
704 b >>= pool->sectors_per_block_shift; in get_bio_block_range()
705 e >>= pool->sectors_per_block_shift; in get_bio_block_range()
707 (void) sector_div(b, pool->sectors_per_block); in get_bio_block_range()
708 (void) sector_div(e, pool->sectors_per_block); in get_bio_block_range()
721 struct pool *pool = tc->pool; in remap() local
725 if (block_size_is_power_of_two(pool)) in remap()
727 (block << pool->sectors_per_block_shift) | in remap()
728 (bi_sector & (pool->sectors_per_block - 1)); in remap()
730 bio->bi_iter.bi_sector = (block * pool->sectors_per_block) + in remap()
731 sector_div(bi_sector, pool->sectors_per_block); in remap()
745 static void inc_all_io_entry(struct pool *pool, struct bio *bio) in inc_all_io_entry() argument
753 h->all_io_entry = dm_deferred_entry_inc(pool->all_io_ds); in inc_all_io_entry()
758 struct pool *pool = tc->pool; in issue() local
780 spin_lock_irqsave(&pool->lock, flags); in issue()
781 bio_list_add(&pool->deferred_flush_bios, bio); in issue()
782 spin_unlock_irqrestore(&pool->lock, flags); in issue()
834 struct pool *pool = m->tc->pool; in __complete_mapping_preparation() local
837 list_add_tail(&m->list, &pool->prepared_mappings); in __complete_mapping_preparation()
838 wake_worker(pool); in __complete_mapping_preparation()
845 struct pool *pool = m->tc->pool; in complete_mapping_preparation() local
847 spin_lock_irqsave(&pool->lock, flags); in complete_mapping_preparation()
849 spin_unlock_irqrestore(&pool->lock, flags); in complete_mapping_preparation()
887 struct pool *pool = tc->pool; in cell_defer_no_holder() local
891 cell_release_no_holder(pool, cell, &tc->deferred_bio_list); in cell_defer_no_holder()
894 wake_worker(pool); in cell_defer_no_holder()
915 inc_all_io_entry(info->tc->pool, bio); in __inc_remap_and_issue_cell()
943 cell_visit_release(tc->pool, __inc_remap_and_issue_cell, in inc_remap_and_issue_cell()
955 cell_error(m->tc->pool, m->cell); in process_prepared_mapping_fail()
957 mempool_free(m, &m->tc->pool->mapping_pool); in process_prepared_mapping_fail()
962 struct pool *pool = tc->pool; in complete_overwrite_bio() local
988 spin_lock_irqsave(&pool->lock, flags); in complete_overwrite_bio()
989 bio_list_add(&pool->deferred_flush_completions, bio); in complete_overwrite_bio()
990 spin_unlock_irqrestore(&pool->lock, flags); in complete_overwrite_bio()
996 struct pool *pool = tc->pool; in process_prepared_mapping() local
1001 cell_error(pool, m->cell); in process_prepared_mapping()
1012 metadata_operation_failed(pool, "dm_thin_insert_block", r); in process_prepared_mapping()
1013 cell_error(pool, m->cell); in process_prepared_mapping()
1027 inc_all_io_entry(tc->pool, m->cell->holder); in process_prepared_mapping()
1034 mempool_free(m, &pool->mapping_pool); in process_prepared_mapping()
1044 mempool_free(m, &tc->pool->mapping_pool); in free_discard_mapping()
1066 metadata_operation_failed(tc->pool, "dm_thin_remove_range", r); in process_prepared_discard_no_passdown()
1072 mempool_free(m, &tc->pool->mapping_pool); in process_prepared_discard_no_passdown()
1087 struct pool *pool = tc->pool; in passdown_double_checking_shared_status() local
1095 r = dm_pool_block_is_shared(pool->pmd, b, &shared); in passdown_double_checking_shared_status()
1108 r = dm_pool_block_is_shared(pool->pmd, e, &shared); in passdown_double_checking_shared_status()
1129 struct pool *pool = m->tc->pool; in queue_passdown_pt2() local
1131 spin_lock_irqsave(&pool->lock, flags); in queue_passdown_pt2()
1132 list_add_tail(&m->list, &pool->prepared_discards_pt2); in queue_passdown_pt2()
1133 spin_unlock_irqrestore(&pool->lock, flags); in queue_passdown_pt2()
1134 wake_worker(pool); in queue_passdown_pt2()
1151 struct pool *pool = tc->pool; in process_prepared_discard_passdown_pt1() local
1162 metadata_operation_failed(pool, "dm_thin_remove_range", r); in process_prepared_discard_passdown_pt1()
1165 mempool_free(m, &pool->mapping_pool); in process_prepared_discard_passdown_pt1()
1173 r = dm_pool_inc_data_range(pool->pmd, m->data_block, data_end); in process_prepared_discard_passdown_pt1()
1175 metadata_operation_failed(pool, "dm_pool_inc_data_range", r); in process_prepared_discard_passdown_pt1()
1178 mempool_free(m, &pool->mapping_pool); in process_prepared_discard_passdown_pt1()
1185 dm_device_name(tc->pool->pool_md)); in process_prepared_discard_passdown_pt1()
1208 struct pool *pool = tc->pool; in process_prepared_discard_passdown_pt2() local
1214 r = dm_pool_dec_data_range(pool->pmd, m->data_block, in process_prepared_discard_passdown_pt2()
1217 metadata_operation_failed(pool, "dm_pool_dec_data_range", r); in process_prepared_discard_passdown_pt2()
1223 mempool_free(m, &pool->mapping_pool); in process_prepared_discard_passdown_pt2()
1226 static void process_prepared(struct pool *pool, struct list_head *head, in process_prepared() argument
1234 spin_lock_irqsave(&pool->lock, flags); in process_prepared()
1236 spin_unlock_irqrestore(&pool->lock, flags); in process_prepared()
1245 static int io_overlaps_block(struct pool *pool, struct bio *bio) in io_overlaps_block() argument
1248 (pool->sectors_per_block << SECTOR_SHIFT); in io_overlaps_block()
1251 static int io_overwrites_block(struct pool *pool, struct bio *bio) in io_overwrites_block() argument
1254 io_overlaps_block(pool, bio); in io_overwrites_block()
1264 static int ensure_next_mapping(struct pool *pool) in ensure_next_mapping() argument
1266 if (pool->next_mapping) in ensure_next_mapping()
1269 pool->next_mapping = mempool_alloc(&pool->mapping_pool, GFP_ATOMIC); in ensure_next_mapping()
1271 return pool->next_mapping ? 0 : -ENOMEM; in ensure_next_mapping()
1274 static struct dm_thin_new_mapping *get_next_mapping(struct pool *pool) in get_next_mapping() argument
1276 struct dm_thin_new_mapping *m = pool->next_mapping; in get_next_mapping()
1278 BUG_ON(!pool->next_mapping); in get_next_mapping()
1284 pool->next_mapping = NULL; in get_next_mapping()
1298 dm_kcopyd_zero(tc->pool->copier, 1, &to, 0, copy_complete, m); in ll_zero()
1305 struct pool *pool = tc->pool; in remap_and_issue_overwrite() local
1311 inc_all_io_entry(pool, bio); in remap_and_issue_overwrite()
1324 struct pool *pool = tc->pool; in schedule_copy() local
1325 struct dm_thin_new_mapping *m = get_next_mapping(pool); in schedule_copy()
1340 if (!dm_deferred_set_add_work(pool->shared_read_ds, &m->list)) in schedule_copy()
1349 if (io_overwrites_block(pool, bio)) in schedule_copy()
1355 from.sector = data_origin * pool->sectors_per_block; in schedule_copy()
1359 to.sector = data_dest * pool->sectors_per_block; in schedule_copy()
1362 dm_kcopyd_copy(pool->copier, &from, 1, &to, in schedule_copy()
1368 if (len < pool->sectors_per_block && pool->pf.zero_new_blocks) { in schedule_copy()
1371 data_dest * pool->sectors_per_block + len, in schedule_copy()
1372 (data_dest + 1) * pool->sectors_per_block); in schedule_copy()
1385 tc->pool->sectors_per_block); in schedule_internal_copy()
1392 struct pool *pool = tc->pool; in schedule_zero() local
1393 struct dm_thin_new_mapping *m = get_next_mapping(pool); in schedule_zero()
1407 if (pool->pf.zero_new_blocks) { in schedule_zero()
1408 if (io_overwrites_block(pool, bio)) in schedule_zero()
1411 ll_zero(tc, m, data_block * pool->sectors_per_block, in schedule_zero()
1412 (data_block + 1) * pool->sectors_per_block); in schedule_zero()
1421 struct pool *pool = tc->pool; in schedule_external_copy() local
1422 sector_t virt_block_begin = virt_block * pool->sectors_per_block; in schedule_external_copy()
1423 sector_t virt_block_end = (virt_block + 1) * pool->sectors_per_block; in schedule_external_copy()
1428 pool->sectors_per_block); in schedule_external_copy()
1439 static void set_pool_mode(struct pool *pool, enum pool_mode new_mode);
1441 static void requeue_bios(struct pool *pool);
1448 static bool is_read_only(struct pool *pool) in is_read_only() argument
1450 return is_read_only_pool_mode(get_pool_mode(pool)); in is_read_only()
1453 static void check_for_metadata_space(struct pool *pool) in check_for_metadata_space() argument
1459 r = dm_pool_get_free_metadata_block_count(pool->pmd, &nr_free); in check_for_metadata_space()
1465 if (ooms_reason && !is_read_only(pool)) { in check_for_metadata_space()
1467 set_pool_mode(pool, PM_OUT_OF_METADATA_SPACE); in check_for_metadata_space()
1471 static void check_for_data_space(struct pool *pool) in check_for_data_space() argument
1476 if (get_pool_mode(pool) != PM_OUT_OF_DATA_SPACE) in check_for_data_space()
1479 r = dm_pool_get_free_block_count(pool->pmd, &nr_free); in check_for_data_space()
1484 set_pool_mode(pool, PM_WRITE); in check_for_data_space()
1485 requeue_bios(pool); in check_for_data_space()
1493 static int commit(struct pool *pool) in commit() argument
1497 if (get_pool_mode(pool) >= PM_OUT_OF_METADATA_SPACE) in commit()
1500 r = dm_pool_commit_metadata(pool->pmd); in commit()
1502 metadata_operation_failed(pool, "dm_pool_commit_metadata", r); in commit()
1504 check_for_metadata_space(pool); in commit()
1505 check_for_data_space(pool); in commit()
1511 static void check_low_water_mark(struct pool *pool, dm_block_t free_blocks) in check_low_water_mark() argument
1515 if (free_blocks <= pool->low_water_blocks && !pool->low_water_triggered) { in check_low_water_mark()
1517 dm_device_name(pool->pool_md)); in check_low_water_mark()
1518 spin_lock_irqsave(&pool->lock, flags); in check_low_water_mark()
1519 pool->low_water_triggered = true; in check_low_water_mark()
1520 spin_unlock_irqrestore(&pool->lock, flags); in check_low_water_mark()
1521 dm_table_event(pool->ti->table); in check_low_water_mark()
1529 struct pool *pool = tc->pool; in alloc_data_block() local
1531 if (WARN_ON(get_pool_mode(pool) != PM_WRITE)) in alloc_data_block()
1534 r = dm_pool_get_free_block_count(pool->pmd, &free_blocks); in alloc_data_block()
1536 metadata_operation_failed(pool, "dm_pool_get_free_block_count", r); in alloc_data_block()
1540 check_low_water_mark(pool, free_blocks); in alloc_data_block()
1547 r = commit(pool); in alloc_data_block()
1551 r = dm_pool_get_free_block_count(pool->pmd, &free_blocks); in alloc_data_block()
1553 metadata_operation_failed(pool, "dm_pool_get_free_block_count", r); in alloc_data_block()
1558 set_pool_mode(pool, PM_OUT_OF_DATA_SPACE); in alloc_data_block()
1563 r = dm_pool_alloc_data_block(pool->pmd, result); in alloc_data_block()
1566 set_pool_mode(pool, PM_OUT_OF_DATA_SPACE); in alloc_data_block()
1568 metadata_operation_failed(pool, "dm_pool_alloc_data_block", r); in alloc_data_block()
1572 r = dm_pool_get_free_metadata_block_count(pool->pmd, &free_blocks); in alloc_data_block()
1574 metadata_operation_failed(pool, "dm_pool_get_free_metadata_block_count", r); in alloc_data_block()
1580 r = commit(pool); in alloc_data_block()
1603 static blk_status_t should_error_unserviceable_bio(struct pool *pool) in should_error_unserviceable_bio() argument
1605 enum pool_mode m = get_pool_mode(pool); in should_error_unserviceable_bio()
1614 return pool->pf.error_if_no_space ? BLK_STS_NOSPC : 0; in should_error_unserviceable_bio()
1627 static void handle_unserviceable_bio(struct pool *pool, struct bio *bio) in handle_unserviceable_bio() argument
1629 blk_status_t error = should_error_unserviceable_bio(pool); in handle_unserviceable_bio()
1638 static void retry_bios_on_resume(struct pool *pool, struct dm_bio_prison_cell *cell) in retry_bios_on_resume() argument
1644 error = should_error_unserviceable_bio(pool); in retry_bios_on_resume()
1646 cell_error_with_code(pool, cell, error); in retry_bios_on_resume()
1651 cell_release(pool, cell, &bios); in retry_bios_on_resume()
1660 struct pool *pool = tc->pool; in process_discard_cell_no_passdown() local
1661 struct dm_thin_new_mapping *m = get_next_mapping(pool); in process_discard_cell_no_passdown()
1673 if (!dm_deferred_set_add_work(pool->all_io_ds, &m->list)) in process_discard_cell_no_passdown()
1674 pool->process_prepared_discard(m); in process_discard_cell_no_passdown()
1680 struct pool *pool = tc->pool; in break_up_discard_bio() local
1690 r = ensure_next_mapping(pool); in break_up_discard_bio()
1705 if (bio_detain(tc->pool, &data_key, NULL, &data_cell)) { in break_up_discard_bio()
1715 m = get_next_mapping(pool); in break_up_discard_bio()
1733 if (!dm_deferred_set_add_work(pool->all_io_ds, &m->list)) in break_up_discard_bio()
1734 pool->process_prepared_discard(m); in break_up_discard_bio()
1777 if (bio_detain(tc->pool, &virt_key, bio, &virt_cell)) in process_discard_bio()
1787 tc->pool->process_discard_cell(tc, virt_cell); in process_discard_bio()
1797 struct pool *pool = tc->pool; in break_sharing() local
1807 retry_bios_on_resume(pool, cell); in break_sharing()
1813 cell_error(pool, cell); in break_sharing()
1831 h->shared_read_entry = dm_deferred_entry_inc(info->tc->pool->shared_read_ds); in __remap_and_issue_shared_cell()
1832 inc_all_io_entry(info->tc->pool, bio); in __remap_and_issue_shared_cell()
1849 cell_visit_release(tc->pool, __remap_and_issue_shared_cell, in remap_and_issue_shared_cell()
1865 struct pool *pool = tc->pool; in process_shared_bio() local
1873 if (bio_detain(pool, &key, bio, &data_cell)) { in process_shared_bio()
1884 h->shared_read_entry = dm_deferred_entry_inc(pool->shared_read_ds); in process_shared_bio()
1885 inc_all_io_entry(pool, bio); in process_shared_bio()
1898 struct pool *pool = tc->pool; in provision_block() local
1904 inc_all_io_entry(pool, bio); in provision_block()
1931 retry_bios_on_resume(pool, cell); in provision_block()
1937 cell_error(pool, cell); in provision_block()
1945 struct pool *pool = tc->pool; in process_cell() local
1951 cell_requeue(pool, cell); in process_cell()
1961 inc_all_io_entry(pool, bio); in process_cell()
1969 inc_all_io_entry(pool, bio); in process_cell()
1999 struct pool *pool = tc->pool; in process_bio() local
2009 if (bio_detain(pool, &key, bio, &cell)) in process_bio()
2027 handle_unserviceable_bio(tc->pool, bio); in __process_bio_read_only()
2031 inc_all_io_entry(tc->pool, bio); in __process_bio_read_only()
2042 handle_unserviceable_bio(tc->pool, bio); in __process_bio_read_only()
2047 inc_all_io_entry(tc->pool, bio); in __process_bio_read_only()
2088 cell_success(tc->pool, cell); in process_cell_success()
2093 cell_error(tc->pool, cell); in process_cell_fail()
2100 static int need_commit_due_to_time(struct pool *pool) in need_commit_due_to_time() argument
2102 return !time_in_range(jiffies, pool->last_commit_jiffies, in need_commit_due_to_time()
2103 pool->last_commit_jiffies + COMMIT_PERIOD); in need_commit_due_to_time()
2172 struct pool *pool = tc->pool; in process_thin_deferred_bios() local
2208 if (ensure_next_mapping(pool)) { in process_thin_deferred_bios()
2217 pool->process_discard(tc, bio); in process_thin_deferred_bios()
2219 pool->process_bio(tc, bio); in process_thin_deferred_bios()
2222 throttle_work_update(&pool->throttle); in process_thin_deferred_bios()
2223 dm_pool_issue_prefetches(pool->pmd); in process_thin_deferred_bios()
2246 static unsigned sort_cells(struct pool *pool, struct list_head *cells) in sort_cells() argument
2255 pool->cell_sort_array[count++] = cell; in sort_cells()
2259 sort(pool->cell_sort_array, count, sizeof(cell), cmp_cells, NULL); in sort_cells()
2266 struct pool *pool = tc->pool; in process_thin_deferred_cells() local
2282 count = sort_cells(tc->pool, &cells); in process_thin_deferred_cells()
2285 cell = pool->cell_sort_array[i]; in process_thin_deferred_cells()
2293 if (ensure_next_mapping(pool)) { in process_thin_deferred_cells()
2295 list_add(&pool->cell_sort_array[j]->user_list, &cells); in process_thin_deferred_cells()
2304 pool->process_discard_cell(tc, cell); in process_thin_deferred_cells()
2306 pool->process_cell(tc, cell); in process_thin_deferred_cells()
2319 static struct thin_c *get_first_thin(struct pool *pool) in get_first_thin() argument
2324 if (!list_empty(&pool->active_thins)) { in get_first_thin()
2325 tc = list_entry_rcu(pool->active_thins.next, struct thin_c, list); in get_first_thin()
2333 static struct thin_c *get_next_thin(struct pool *pool, struct thin_c *tc) in get_next_thin() argument
2338 list_for_each_entry_continue_rcu(tc, &pool->active_thins, list) { in get_next_thin()
2350 static void process_deferred_bios(struct pool *pool) in process_deferred_bios() argument
2357 tc = get_first_thin(pool); in process_deferred_bios()
2361 tc = get_next_thin(pool, tc); in process_deferred_bios()
2371 spin_lock_irqsave(&pool->lock, flags); in process_deferred_bios()
2372 bio_list_merge(&bios, &pool->deferred_flush_bios); in process_deferred_bios()
2373 bio_list_init(&pool->deferred_flush_bios); in process_deferred_bios()
2375 bio_list_merge(&bio_completions, &pool->deferred_flush_completions); in process_deferred_bios()
2376 bio_list_init(&pool->deferred_flush_completions); in process_deferred_bios()
2377 spin_unlock_irqrestore(&pool->lock, flags); in process_deferred_bios()
2380 !(dm_pool_changed_this_transaction(pool->pmd) && need_commit_due_to_time(pool))) in process_deferred_bios()
2383 if (commit(pool)) { in process_deferred_bios()
2390 pool->last_commit_jiffies = jiffies; in process_deferred_bios()
2401 struct pool *pool = container_of(ws, struct pool, worker); in do_worker() local
2403 throttle_work_start(&pool->throttle); in do_worker()
2404 dm_pool_issue_prefetches(pool->pmd); in do_worker()
2405 throttle_work_update(&pool->throttle); in do_worker()
2406 process_prepared(pool, &pool->prepared_mappings, &pool->process_prepared_mapping); in do_worker()
2407 throttle_work_update(&pool->throttle); in do_worker()
2408 process_prepared(pool, &pool->prepared_discards, &pool->process_prepared_discard); in do_worker()
2409 throttle_work_update(&pool->throttle); in do_worker()
2410 process_prepared(pool, &pool->prepared_discards_pt2, &pool->process_prepared_discard_pt2); in do_worker()
2411 throttle_work_update(&pool->throttle); in do_worker()
2412 process_deferred_bios(pool); in do_worker()
2413 throttle_work_complete(&pool->throttle); in do_worker()
2422 struct pool *pool = container_of(to_delayed_work(ws), struct pool, waker); in do_waker() local
2423 wake_worker(pool); in do_waker()
2424 queue_delayed_work(pool->wq, &pool->waker, COMMIT_PERIOD); in do_waker()
2434 struct pool *pool = container_of(to_delayed_work(ws), struct pool, in do_no_space_timeout() local
2437 if (get_pool_mode(pool) == PM_OUT_OF_DATA_SPACE && !pool->pf.error_if_no_space) { in do_no_space_timeout()
2438 pool->pf.error_if_no_space = true; in do_no_space_timeout()
2439 notify_of_pool_mode_change(pool); in do_no_space_timeout()
2440 error_retry_list_with_code(pool, BLK_STS_NOSPC); in do_no_space_timeout()
2461 static void pool_work_wait(struct pool_work *pw, struct pool *pool, in pool_work_wait() argument
2466 queue_work(pool->wq, &pw->worker); in pool_work_wait()
2502 pool_work_wait(&w.pw, tc->pool, fn); in noflush_work()
2512 static void set_discard_callbacks(struct pool *pool) in set_discard_callbacks() argument
2514 struct pool_c *pt = pool->ti->private; in set_discard_callbacks()
2517 pool->process_discard_cell = process_discard_cell_passdown; in set_discard_callbacks()
2518 pool->process_prepared_discard = process_prepared_discard_passdown_pt1; in set_discard_callbacks()
2519 pool->process_prepared_discard_pt2 = process_prepared_discard_passdown_pt2; in set_discard_callbacks()
2521 pool->process_discard_cell = process_discard_cell_no_passdown; in set_discard_callbacks()
2522 pool->process_prepared_discard = process_prepared_discard_no_passdown; in set_discard_callbacks()
2526 static void set_pool_mode(struct pool *pool, enum pool_mode new_mode) in set_pool_mode() argument
2528 struct pool_c *pt = pool->ti->private; in set_pool_mode()
2529 bool needs_check = dm_pool_metadata_needs_check(pool->pmd); in set_pool_mode()
2530 enum pool_mode old_mode = get_pool_mode(pool); in set_pool_mode()
2539 dm_device_name(pool->pool_md)); in set_pool_mode()
2555 dm_pool_metadata_read_only(pool->pmd); in set_pool_mode()
2556 pool->process_bio = process_bio_fail; in set_pool_mode()
2557 pool->process_discard = process_bio_fail; in set_pool_mode()
2558 pool->process_cell = process_cell_fail; in set_pool_mode()
2559 pool->process_discard_cell = process_cell_fail; in set_pool_mode()
2560 pool->process_prepared_mapping = process_prepared_mapping_fail; in set_pool_mode()
2561 pool->process_prepared_discard = process_prepared_discard_fail; in set_pool_mode()
2563 error_retry_list(pool); in set_pool_mode()
2568 dm_pool_metadata_read_only(pool->pmd); in set_pool_mode()
2569 pool->process_bio = process_bio_read_only; in set_pool_mode()
2570 pool->process_discard = process_bio_success; in set_pool_mode()
2571 pool->process_cell = process_cell_read_only; in set_pool_mode()
2572 pool->process_discard_cell = process_cell_success; in set_pool_mode()
2573 pool->process_prepared_mapping = process_prepared_mapping_fail; in set_pool_mode()
2574 pool->process_prepared_discard = process_prepared_discard_success; in set_pool_mode()
2576 error_retry_list(pool); in set_pool_mode()
2588 pool->out_of_data_space = true; in set_pool_mode()
2589 pool->process_bio = process_bio_read_only; in set_pool_mode()
2590 pool->process_discard = process_discard_bio; in set_pool_mode()
2591 pool->process_cell = process_cell_read_only; in set_pool_mode()
2592 pool->process_prepared_mapping = process_prepared_mapping; in set_pool_mode()
2593 set_discard_callbacks(pool); in set_pool_mode()
2595 if (!pool->pf.error_if_no_space && no_space_timeout) in set_pool_mode()
2596 queue_delayed_work(pool->wq, &pool->no_space_timeout, no_space_timeout); in set_pool_mode()
2601 cancel_delayed_work_sync(&pool->no_space_timeout); in set_pool_mode()
2602 pool->out_of_data_space = false; in set_pool_mode()
2603 pool->pf.error_if_no_space = pt->requested_pf.error_if_no_space; in set_pool_mode()
2604 dm_pool_metadata_read_write(pool->pmd); in set_pool_mode()
2605 pool->process_bio = process_bio; in set_pool_mode()
2606 pool->process_discard = process_discard_bio; in set_pool_mode()
2607 pool->process_cell = process_cell; in set_pool_mode()
2608 pool->process_prepared_mapping = process_prepared_mapping; in set_pool_mode()
2609 set_discard_callbacks(pool); in set_pool_mode()
2613 pool->pf.mode = new_mode; in set_pool_mode()
2621 notify_of_pool_mode_change(pool); in set_pool_mode()
2624 static void abort_transaction(struct pool *pool) in abort_transaction() argument
2626 const char *dev_name = dm_device_name(pool->pool_md); in abort_transaction()
2629 if (dm_pool_abort_metadata(pool->pmd)) { in abort_transaction()
2631 set_pool_mode(pool, PM_FAIL); in abort_transaction()
2634 if (dm_pool_metadata_set_needs_check(pool->pmd)) { in abort_transaction()
2636 set_pool_mode(pool, PM_FAIL); in abort_transaction()
2640 static void metadata_operation_failed(struct pool *pool, const char *op, int r) in metadata_operation_failed() argument
2643 dm_device_name(pool->pool_md), op, r); in metadata_operation_failed()
2645 abort_transaction(pool); in metadata_operation_failed()
2646 set_pool_mode(pool, PM_READ_ONLY); in metadata_operation_failed()
2661 struct pool *pool = tc->pool; in thin_defer_bio() local
2667 wake_worker(pool); in thin_defer_bio()
2672 struct pool *pool = tc->pool; in thin_defer_bio_with_throttle() local
2674 throttle_lock(&pool->throttle); in thin_defer_bio_with_throttle()
2676 throttle_unlock(&pool->throttle); in thin_defer_bio_with_throttle()
2682 struct pool *pool = tc->pool; in thin_defer_cell() local
2684 throttle_lock(&pool->throttle); in thin_defer_cell()
2688 throttle_unlock(&pool->throttle); in thin_defer_cell()
2690 wake_worker(pool); in thin_defer_cell()
2725 if (get_pool_mode(tc->pool) == PM_FAIL) { in thin_bio_map()
2740 if (bio_detain(tc->pool, &key, bio, &virt_cell)) in thin_bio_map()
2770 if (bio_detain(tc->pool, &key, bio, &data_cell)) { in thin_bio_map()
2775 inc_all_io_entry(tc->pool, bio); in thin_bio_map()
2804 if (get_pool_mode(pt->pool) == PM_OUT_OF_DATA_SPACE) in pool_is_congested()
2811 static void requeue_bios(struct pool *pool) in requeue_bios() argument
2817 list_for_each_entry_rcu(tc, &pool->active_thins, list) { in requeue_bios()
2847 struct pool *pool = pt->pool; in disable_passdown_if_not_supported() local
2859 else if (data_limits->max_discard_sectors < pool->sectors_per_block) in disable_passdown_if_not_supported()
2868 static int bind_control_target(struct pool *pool, struct dm_target *ti) in bind_control_target() argument
2875 enum pool_mode old_mode = get_pool_mode(pool); in bind_control_target()
2885 pool->ti = ti; in bind_control_target()
2886 pool->pf = pt->adjusted_pf; in bind_control_target()
2887 pool->low_water_blocks = pt->low_water_blocks; in bind_control_target()
2889 set_pool_mode(pool, new_mode); in bind_control_target()
2894 static void unbind_control_target(struct pool *pool, struct dm_target *ti) in unbind_control_target() argument
2896 if (pool->ti == ti) in unbind_control_target()
2897 pool->ti = NULL; in unbind_control_target()
2913 static void __pool_destroy(struct pool *pool) in __pool_destroy() argument
2915 __pool_table_remove(pool); in __pool_destroy()
2917 vfree(pool->cell_sort_array); in __pool_destroy()
2918 if (dm_pool_metadata_close(pool->pmd) < 0) in __pool_destroy()
2921 dm_bio_prison_destroy(pool->prison); in __pool_destroy()
2922 dm_kcopyd_client_destroy(pool->copier); in __pool_destroy()
2924 if (pool->wq) in __pool_destroy()
2925 destroy_workqueue(pool->wq); in __pool_destroy()
2927 if (pool->next_mapping) in __pool_destroy()
2928 mempool_free(pool->next_mapping, &pool->mapping_pool); in __pool_destroy()
2929 mempool_exit(&pool->mapping_pool); in __pool_destroy()
2930 dm_deferred_set_destroy(pool->shared_read_ds); in __pool_destroy()
2931 dm_deferred_set_destroy(pool->all_io_ds); in __pool_destroy()
2932 kfree(pool); in __pool_destroy()
2937 static struct pool *pool_create(struct mapped_device *pool_md, in pool_create()
2944 struct pool *pool; in pool_create() local
2951 return (struct pool *)pmd; in pool_create()
2954 pool = kzalloc(sizeof(*pool), GFP_KERNEL); in pool_create()
2955 if (!pool) { in pool_create()
2961 pool->pmd = pmd; in pool_create()
2962 pool->sectors_per_block = block_size; in pool_create()
2964 pool->sectors_per_block_shift = -1; in pool_create()
2966 pool->sectors_per_block_shift = __ffs(block_size); in pool_create()
2967 pool->low_water_blocks = 0; in pool_create()
2968 pool_features_init(&pool->pf); in pool_create()
2969 pool->prison = dm_bio_prison_create(); in pool_create()
2970 if (!pool->prison) { in pool_create()
2976 pool->copier = dm_kcopyd_client_create(&dm_kcopyd_throttle); in pool_create()
2977 if (IS_ERR(pool->copier)) { in pool_create()
2978 r = PTR_ERR(pool->copier); in pool_create()
2988 pool->wq = alloc_ordered_workqueue("dm-" DM_MSG_PREFIX, WQ_MEM_RECLAIM); in pool_create()
2989 if (!pool->wq) { in pool_create()
2995 throttle_init(&pool->throttle); in pool_create()
2996 INIT_WORK(&pool->worker, do_worker); in pool_create()
2997 INIT_DELAYED_WORK(&pool->waker, do_waker); in pool_create()
2998 INIT_DELAYED_WORK(&pool->no_space_timeout, do_no_space_timeout); in pool_create()
2999 spin_lock_init(&pool->lock); in pool_create()
3000 bio_list_init(&pool->deferred_flush_bios); in pool_create()
3001 bio_list_init(&pool->deferred_flush_completions); in pool_create()
3002 INIT_LIST_HEAD(&pool->prepared_mappings); in pool_create()
3003 INIT_LIST_HEAD(&pool->prepared_discards); in pool_create()
3004 INIT_LIST_HEAD(&pool->prepared_discards_pt2); in pool_create()
3005 INIT_LIST_HEAD(&pool->active_thins); in pool_create()
3006 pool->low_water_triggered = false; in pool_create()
3007 pool->suspended = true; in pool_create()
3008 pool->out_of_data_space = false; in pool_create()
3010 pool->shared_read_ds = dm_deferred_set_create(); in pool_create()
3011 if (!pool->shared_read_ds) { in pool_create()
3017 pool->all_io_ds = dm_deferred_set_create(); in pool_create()
3018 if (!pool->all_io_ds) { in pool_create()
3024 pool->next_mapping = NULL; in pool_create()
3025 r = mempool_init_slab_pool(&pool->mapping_pool, MAPPING_POOL_SIZE, in pool_create()
3033 pool->cell_sort_array = in pool_create()
3035 sizeof(*pool->cell_sort_array))); in pool_create()
3036 if (!pool->cell_sort_array) { in pool_create()
3042 pool->ref_count = 1; in pool_create()
3043 pool->last_commit_jiffies = jiffies; in pool_create()
3044 pool->pool_md = pool_md; in pool_create()
3045 pool->md_dev = metadata_dev; in pool_create()
3046 __pool_table_insert(pool); in pool_create()
3048 return pool; in pool_create()
3051 mempool_exit(&pool->mapping_pool); in pool_create()
3053 dm_deferred_set_destroy(pool->all_io_ds); in pool_create()
3055 dm_deferred_set_destroy(pool->shared_read_ds); in pool_create()
3057 destroy_workqueue(pool->wq); in pool_create()
3059 dm_kcopyd_client_destroy(pool->copier); in pool_create()
3061 dm_bio_prison_destroy(pool->prison); in pool_create()
3063 kfree(pool); in pool_create()
3071 static void __pool_inc(struct pool *pool) in __pool_inc() argument
3074 pool->ref_count++; in __pool_inc()
3077 static void __pool_dec(struct pool *pool) in __pool_dec() argument
3080 BUG_ON(!pool->ref_count); in __pool_dec()
3081 if (!--pool->ref_count) in __pool_dec()
3082 __pool_destroy(pool); in __pool_dec()
3085 static struct pool *__pool_find(struct mapped_device *pool_md, in __pool_find()
3090 struct pool *pool = __pool_table_lookup_metadata_dev(metadata_dev); in __pool_find() local
3092 if (pool) { in __pool_find()
3093 if (pool->pool_md != pool_md) { in __pool_find()
3097 __pool_inc(pool); in __pool_find()
3100 pool = __pool_table_lookup(pool_md); in __pool_find()
3101 if (pool) { in __pool_find()
3102 if (pool->md_dev != metadata_dev) { in __pool_find()
3106 __pool_inc(pool); in __pool_find()
3109 pool = pool_create(pool_md, metadata_dev, block_size, read_only, error); in __pool_find()
3114 return pool; in __pool_find()
3126 unbind_control_target(pt->pool, ti); in pool_dtr()
3127 __pool_dec(pt->pool); in pool_dtr()
3187 struct pool *pool = context; in metadata_low_callback() local
3190 dm_device_name(pool->pool_md)); in metadata_low_callback()
3192 dm_table_event(pool->ti->table); in metadata_low_callback()
3263 struct pool *pool; in pool_ctr() local
3338 pool = __pool_find(dm_table_get_md(ti->table), metadata_dev->bdev, in pool_ctr()
3340 if (IS_ERR(pool)) { in pool_ctr()
3341 r = PTR_ERR(pool); in pool_ctr()
3351 if (!pool_created && pf.discard_enabled != pool->pf.discard_enabled) { in pool_ctr()
3357 pt->pool = pool; in pool_ctr()
3382 r = dm_pool_register_metadata_threshold(pt->pool->pmd, in pool_ctr()
3385 pool); in pool_ctr()
3397 __pool_dec(pool); in pool_ctr()
3414 struct pool *pool = pt->pool; in pool_map() local
3420 spin_lock_irqsave(&pool->lock, flags); in pool_map()
3423 spin_unlock_irqrestore(&pool->lock, flags); in pool_map()
3432 struct pool *pool = pt->pool; in maybe_resize_data_dev() local
3438 (void) sector_div(data_size, pool->sectors_per_block); in maybe_resize_data_dev()
3440 r = dm_pool_get_data_dev_size(pool->pmd, &sb_data_size); in maybe_resize_data_dev()
3443 dm_device_name(pool->pool_md)); in maybe_resize_data_dev()
3449 dm_device_name(pool->pool_md), in maybe_resize_data_dev()
3454 if (dm_pool_metadata_needs_check(pool->pmd)) { in maybe_resize_data_dev()
3456 dm_device_name(pool->pool_md)); in maybe_resize_data_dev()
3462 dm_device_name(pool->pool_md), in maybe_resize_data_dev()
3464 r = dm_pool_resize_data_dev(pool->pmd, data_size); in maybe_resize_data_dev()
3466 metadata_operation_failed(pool, "dm_pool_resize_data_dev", r); in maybe_resize_data_dev()
3480 struct pool *pool = pt->pool; in maybe_resize_metadata_dev() local
3485 metadata_dev_size = get_metadata_dev_size_in_blocks(pool->md_dev); in maybe_resize_metadata_dev()
3487 r = dm_pool_get_metadata_dev_size(pool->pmd, &sb_metadata_dev_size); in maybe_resize_metadata_dev()
3490 dm_device_name(pool->pool_md)); in maybe_resize_metadata_dev()
3496 dm_device_name(pool->pool_md), in maybe_resize_metadata_dev()
3501 if (dm_pool_metadata_needs_check(pool->pmd)) { in maybe_resize_metadata_dev()
3503 dm_device_name(pool->pool_md)); in maybe_resize_metadata_dev()
3507 warn_if_metadata_device_too_big(pool->md_dev); in maybe_resize_metadata_dev()
3509 dm_device_name(pool->pool_md), in maybe_resize_metadata_dev()
3512 if (get_pool_mode(pool) == PM_OUT_OF_METADATA_SPACE) in maybe_resize_metadata_dev()
3513 set_pool_mode(pool, PM_WRITE); in maybe_resize_metadata_dev()
3515 r = dm_pool_resize_metadata_dev(pool->pmd, metadata_dev_size); in maybe_resize_metadata_dev()
3517 metadata_operation_failed(pool, "dm_pool_resize_metadata_dev", r); in maybe_resize_metadata_dev()
3543 struct pool *pool = pt->pool; in pool_preresume() local
3548 r = bind_control_target(pool, ti); in pool_preresume()
3561 (void) commit(pool); in pool_preresume()
3566 static void pool_suspend_active_thins(struct pool *pool) in pool_suspend_active_thins() argument
3571 tc = get_first_thin(pool); in pool_suspend_active_thins()
3574 tc = get_next_thin(pool, tc); in pool_suspend_active_thins()
3578 static void pool_resume_active_thins(struct pool *pool) in pool_resume_active_thins() argument
3583 tc = get_first_thin(pool); in pool_resume_active_thins()
3586 tc = get_next_thin(pool, tc); in pool_resume_active_thins()
3593 struct pool *pool = pt->pool; in pool_resume() local
3600 requeue_bios(pool); in pool_resume()
3601 pool_resume_active_thins(pool); in pool_resume()
3603 spin_lock_irqsave(&pool->lock, flags); in pool_resume()
3604 pool->low_water_triggered = false; in pool_resume()
3605 pool->suspended = false; in pool_resume()
3606 spin_unlock_irqrestore(&pool->lock, flags); in pool_resume()
3608 do_waker(&pool->waker.work); in pool_resume()
3614 struct pool *pool = pt->pool; in pool_presuspend() local
3617 spin_lock_irqsave(&pool->lock, flags); in pool_presuspend()
3618 pool->suspended = true; in pool_presuspend()
3619 spin_unlock_irqrestore(&pool->lock, flags); in pool_presuspend()
3621 pool_suspend_active_thins(pool); in pool_presuspend()
3627 struct pool *pool = pt->pool; in pool_presuspend_undo() local
3630 pool_resume_active_thins(pool); in pool_presuspend_undo()
3632 spin_lock_irqsave(&pool->lock, flags); in pool_presuspend_undo()
3633 pool->suspended = false; in pool_presuspend_undo()
3634 spin_unlock_irqrestore(&pool->lock, flags); in pool_presuspend_undo()
3640 struct pool *pool = pt->pool; in pool_postsuspend() local
3642 cancel_delayed_work_sync(&pool->waker); in pool_postsuspend()
3643 cancel_delayed_work_sync(&pool->no_space_timeout); in pool_postsuspend()
3644 flush_workqueue(pool->wq); in pool_postsuspend()
3645 (void) commit(pool); in pool_postsuspend()
3671 static int process_create_thin_mesg(unsigned argc, char **argv, struct pool *pool) in process_create_thin_mesg() argument
3684 r = dm_pool_create_thin(pool->pmd, dev_id); in process_create_thin_mesg()
3694 static int process_create_snap_mesg(unsigned argc, char **argv, struct pool *pool) in process_create_snap_mesg() argument
3712 r = dm_pool_create_snap(pool->pmd, dev_id, origin_dev_id); in process_create_snap_mesg()
3722 static int process_delete_mesg(unsigned argc, char **argv, struct pool *pool) in process_delete_mesg() argument
3735 r = dm_pool_delete_thin_device(pool->pmd, dev_id); in process_delete_mesg()
3742 static int process_set_transaction_id_mesg(unsigned argc, char **argv, struct pool *pool) in process_set_transaction_id_mesg() argument
3761 r = dm_pool_set_metadata_transaction_id(pool->pmd, old_id, new_id); in process_set_transaction_id_mesg()
3771 static int process_reserve_metadata_snap_mesg(unsigned argc, char **argv, struct pool *pool) in process_reserve_metadata_snap_mesg() argument
3779 (void) commit(pool); in process_reserve_metadata_snap_mesg()
3781 r = dm_pool_reserve_metadata_snap(pool->pmd); in process_reserve_metadata_snap_mesg()
3788 static int process_release_metadata_snap_mesg(unsigned argc, char **argv, struct pool *pool) in process_release_metadata_snap_mesg() argument
3796 r = dm_pool_release_metadata_snap(pool->pmd); in process_release_metadata_snap_mesg()
3817 struct pool *pool = pt->pool; in pool_message() local
3819 if (get_pool_mode(pool) >= PM_OUT_OF_METADATA_SPACE) { in pool_message()
3821 dm_device_name(pool->pool_md)); in pool_message()
3826 r = process_create_thin_mesg(argc, argv, pool); in pool_message()
3829 r = process_create_snap_mesg(argc, argv, pool); in pool_message()
3832 r = process_delete_mesg(argc, argv, pool); in pool_message()
3835 r = process_set_transaction_id_mesg(argc, argv, pool); in pool_message()
3838 r = process_reserve_metadata_snap_mesg(argc, argv, pool); in pool_message()
3841 r = process_release_metadata_snap_mesg(argc, argv, pool); in pool_message()
3847 (void) commit(pool); in pool_message()
3897 struct pool *pool = pt->pool; in pool_status() local
3901 if (get_pool_mode(pool) == PM_FAIL) { in pool_status()
3908 (void) commit(pool); in pool_status()
3910 r = dm_pool_get_metadata_transaction_id(pool->pmd, &transaction_id); in pool_status()
3913 dm_device_name(pool->pool_md), r); in pool_status()
3917 r = dm_pool_get_free_metadata_block_count(pool->pmd, &nr_free_blocks_metadata); in pool_status()
3920 dm_device_name(pool->pool_md), r); in pool_status()
3924 r = dm_pool_get_metadata_dev_size(pool->pmd, &nr_blocks_metadata); in pool_status()
3927 dm_device_name(pool->pool_md), r); in pool_status()
3931 r = dm_pool_get_free_block_count(pool->pmd, &nr_free_blocks_data); in pool_status()
3934 dm_device_name(pool->pool_md), r); in pool_status()
3938 r = dm_pool_get_data_dev_size(pool->pmd, &nr_blocks_data); in pool_status()
3941 dm_device_name(pool->pool_md), r); in pool_status()
3945 r = dm_pool_get_metadata_snap(pool->pmd, &held_root); in pool_status()
3948 dm_device_name(pool->pool_md), r); in pool_status()
3964 mode = get_pool_mode(pool); in pool_status()
3972 if (!pool->pf.discard_enabled) in pool_status()
3974 else if (pool->pf.discard_passdown) in pool_status()
3979 if (pool->pf.error_if_no_space) in pool_status()
3984 if (dm_pool_metadata_needs_check(pool->pmd)) in pool_status()
3997 (unsigned long)pool->sectors_per_block, in pool_status()
4019 struct pool *pool = pt->pool; in pool_io_hints() local
4031 if (limits->max_sectors < pool->sectors_per_block) { in pool_io_hints()
4032 while (!is_factor(pool->sectors_per_block, limits->max_sectors)) { in pool_io_hints()
4043 if (io_opt_sectors < pool->sectors_per_block || in pool_io_hints()
4044 !is_factor(io_opt_sectors, pool->sectors_per_block)) { in pool_io_hints()
4045 if (is_factor(pool->sectors_per_block, limits->max_sectors)) in pool_io_hints()
4048 blk_limits_io_min(limits, pool->sectors_per_block << SECTOR_SHIFT); in pool_io_hints()
4049 blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT); in pool_io_hints()
4115 spin_lock_irqsave(&tc->pool->lock, flags); in thin_dtr()
4117 spin_unlock_irqrestore(&tc->pool->lock, flags); in thin_dtr()
4125 __pool_dec(tc->pool); in thin_dtr()
4211 tc->pool = __pool_table_lookup(pool_md); in thin_ctr()
4212 if (!tc->pool) { in thin_ctr()
4217 __pool_inc(tc->pool); in thin_ctr()
4219 if (get_pool_mode(tc->pool) == PM_FAIL) { in thin_ctr()
4225 r = dm_pool_open_thin_device(tc->pool->pmd, tc->dev_id, &tc->td); in thin_ctr()
4231 r = dm_set_target_max_io_len(ti, tc->pool->sectors_per_block); in thin_ctr()
4240 if (tc->pool->pf.discard_enabled) { in thin_ctr()
4247 spin_lock_irqsave(&tc->pool->lock, flags); in thin_ctr()
4248 if (tc->pool->suspended) { in thin_ctr()
4249 spin_unlock_irqrestore(&tc->pool->lock, flags); in thin_ctr()
4257 list_add_tail_rcu(&tc->list, &tc->pool->active_thins); in thin_ctr()
4258 spin_unlock_irqrestore(&tc->pool->lock, flags); in thin_ctr()
4274 __pool_dec(tc->pool); in thin_ctr()
4304 struct pool *pool = h->tc->pool; in thin_endio() local
4310 spin_lock_irqsave(&pool->lock, flags); in thin_endio()
4315 spin_unlock_irqrestore(&pool->lock, flags); in thin_endio()
4322 spin_lock_irqsave(&pool->lock, flags); in thin_endio()
4324 list_add_tail(&m->list, &pool->prepared_discards); in thin_endio()
4325 spin_unlock_irqrestore(&pool->lock, flags); in thin_endio()
4326 wake_worker(pool); in thin_endio()
4377 if (get_pool_mode(tc->pool) == PM_FAIL) { in thin_status()
4399 DMEMIT("%llu ", mapped * tc->pool->sectors_per_block); in thin_status()
4402 tc->pool->sectors_per_block) - 1); in thin_status()
4428 struct pool *pool = tc->pool; in thin_iterate_devices() local
4434 if (!pool->ti) in thin_iterate_devices()
4437 blocks = pool->ti->len; in thin_iterate_devices()
4438 (void) sector_div(blocks, pool->sectors_per_block); in thin_iterate_devices()
4440 return fn(ti, tc->pool_dev, 0, pool->sectors_per_block * blocks, data); in thin_iterate_devices()
4448 struct pool *pool = tc->pool; in thin_io_hints() local
4450 if (!pool->pf.discard_enabled) in thin_io_hints()
4453 limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT; in thin_io_hints()