Lines Matching refs:pool
229 struct pool { struct
285 static enum pool_mode get_pool_mode(struct pool *pool); argument
286 static void metadata_operation_failed(struct pool *pool, const char *op, int r);
293 struct pool *pool; member
313 struct pool *pool; member
334 static bool block_size_is_power_of_two(struct pool *pool) in block_size_is_power_of_two() argument
336 return pool->sectors_per_block_shift >= 0; in block_size_is_power_of_two()
339 static sector_t block_to_sectors(struct pool *pool, dm_block_t b) in block_to_sectors() argument
341 return block_size_is_power_of_two(pool) ? in block_to_sectors()
342 (b << pool->sectors_per_block_shift) : in block_to_sectors()
343 (b * pool->sectors_per_block); in block_to_sectors()
368 sector_t s = block_to_sectors(tc->pool, data_b); in issue_discard()
369 sector_t len = block_to_sectors(tc->pool, data_e - data_b); in issue_discard()
404 static void wake_worker(struct pool *pool) in wake_worker() argument
406 queue_work(pool->wq, &pool->worker); in wake_worker()
411 static int bio_detain(struct pool *pool, struct dm_cell_key *key, struct bio *bio, in bio_detain() argument
421 cell_prealloc = dm_bio_prison_alloc_cell(pool->prison, GFP_NOIO); in bio_detain()
423 r = dm_bio_detain(pool->prison, key, bio, cell_prealloc, cell_result); in bio_detain()
429 dm_bio_prison_free_cell(pool->prison, cell_prealloc); in bio_detain()
434 static void cell_release(struct pool *pool, in cell_release() argument
438 dm_cell_release(pool->prison, cell, bios); in cell_release()
439 dm_bio_prison_free_cell(pool->prison, cell); in cell_release()
442 static void cell_visit_release(struct pool *pool, in cell_visit_release() argument
447 dm_cell_visit_release(pool->prison, fn, context, cell); in cell_visit_release()
448 dm_bio_prison_free_cell(pool->prison, cell); in cell_visit_release()
451 static void cell_release_no_holder(struct pool *pool, in cell_release_no_holder() argument
455 dm_cell_release_no_holder(pool->prison, cell, bios); in cell_release_no_holder()
456 dm_bio_prison_free_cell(pool->prison, cell); in cell_release_no_holder()
459 static void cell_error_with_code(struct pool *pool, in cell_error_with_code() argument
462 dm_cell_error(pool->prison, cell, error_code); in cell_error_with_code()
463 dm_bio_prison_free_cell(pool->prison, cell); in cell_error_with_code()
466 static blk_status_t get_pool_io_error_code(struct pool *pool) in get_pool_io_error_code() argument
468 return pool->out_of_data_space ? BLK_STS_NOSPC : BLK_STS_IOERR; in get_pool_io_error_code()
471 static void cell_error(struct pool *pool, struct dm_bio_prison_cell *cell) in cell_error() argument
473 cell_error_with_code(pool, cell, get_pool_io_error_code(pool)); in cell_error()
476 static void cell_success(struct pool *pool, struct dm_bio_prison_cell *cell) in cell_success() argument
478 cell_error_with_code(pool, cell, 0); in cell_success()
481 static void cell_requeue(struct pool *pool, struct dm_bio_prison_cell *cell) in cell_requeue() argument
483 cell_error_with_code(pool, cell, BLK_STS_DM_REQUEUE); in cell_requeue()
507 static void __pool_table_insert(struct pool *pool) in __pool_table_insert() argument
510 list_add(&pool->list, &dm_thin_pool_table.pools); in __pool_table_insert()
513 static void __pool_table_remove(struct pool *pool) in __pool_table_remove() argument
516 list_del(&pool->list); in __pool_table_remove()
519 static struct pool *__pool_table_lookup(struct mapped_device *md) in __pool_table_lookup()
521 struct pool *pool = NULL, *tmp; in __pool_table_lookup() local
527 pool = tmp; in __pool_table_lookup()
532 return pool; in __pool_table_lookup()
535 static struct pool *__pool_table_lookup_metadata_dev(struct block_device *md_dev) in __pool_table_lookup_metadata_dev()
537 struct pool *pool = NULL, *tmp; in __pool_table_lookup_metadata_dev() local
543 pool = tmp; in __pool_table_lookup_metadata_dev()
548 return pool; in __pool_table_lookup_metadata_dev()
595 struct pool *pool = tc->pool; in requeue_deferred_cells() local
607 cell_requeue(pool, cell); in requeue_deferred_cells()
626 static void error_retry_list_with_code(struct pool *pool, blk_status_t error) in error_retry_list_with_code() argument
631 list_for_each_entry_rcu(tc, &pool->active_thins, list) in error_retry_list_with_code()
636 static void error_retry_list(struct pool *pool) in error_retry_list() argument
638 error_retry_list_with_code(pool, get_pool_io_error_code(pool)); in error_retry_list()
650 struct pool *pool = tc->pool; in get_bio_block() local
653 if (block_size_is_power_of_two(pool)) in get_bio_block()
654 block_nr >>= pool->sectors_per_block_shift; in get_bio_block()
656 (void) sector_div(block_nr, pool->sectors_per_block); in get_bio_block()
667 struct pool *pool = tc->pool; in get_bio_block_range() local
671 b += pool->sectors_per_block - 1ull; /* so we round up */ in get_bio_block_range()
673 if (block_size_is_power_of_two(pool)) { in get_bio_block_range()
674 b >>= pool->sectors_per_block_shift; in get_bio_block_range()
675 e >>= pool->sectors_per_block_shift; in get_bio_block_range()
677 (void) sector_div(b, pool->sectors_per_block); in get_bio_block_range()
678 (void) sector_div(e, pool->sectors_per_block); in get_bio_block_range()
691 struct pool *pool = tc->pool; in remap() local
695 if (block_size_is_power_of_two(pool)) in remap()
697 (block << pool->sectors_per_block_shift) | in remap()
698 (bi_sector & (pool->sectors_per_block - 1)); in remap()
700 bio->bi_iter.bi_sector = (block * pool->sectors_per_block) + in remap()
701 sector_div(bi_sector, pool->sectors_per_block); in remap()
715 static void inc_all_io_entry(struct pool *pool, struct bio *bio) in inc_all_io_entry() argument
723 h->all_io_entry = dm_deferred_entry_inc(pool->all_io_ds); in inc_all_io_entry()
728 struct pool *pool = tc->pool; in issue() local
750 spin_lock_irqsave(&pool->lock, flags); in issue()
751 bio_list_add(&pool->deferred_flush_bios, bio); in issue()
752 spin_unlock_irqrestore(&pool->lock, flags); in issue()
804 struct pool *pool = m->tc->pool; in __complete_mapping_preparation() local
807 list_add_tail(&m->list, &pool->prepared_mappings); in __complete_mapping_preparation()
808 wake_worker(pool); in __complete_mapping_preparation()
815 struct pool *pool = m->tc->pool; in complete_mapping_preparation() local
817 spin_lock_irqsave(&pool->lock, flags); in complete_mapping_preparation()
819 spin_unlock_irqrestore(&pool->lock, flags); in complete_mapping_preparation()
857 struct pool *pool = tc->pool; in cell_defer_no_holder() local
861 cell_release_no_holder(pool, cell, &tc->deferred_bio_list); in cell_defer_no_holder()
864 wake_worker(pool); in cell_defer_no_holder()
885 inc_all_io_entry(info->tc->pool, bio); in __inc_remap_and_issue_cell()
913 cell_visit_release(tc->pool, __inc_remap_and_issue_cell, in inc_remap_and_issue_cell()
925 cell_error(m->tc->pool, m->cell); in process_prepared_mapping_fail()
927 mempool_free(m, &m->tc->pool->mapping_pool); in process_prepared_mapping_fail()
933 struct pool *pool = tc->pool; in process_prepared_mapping() local
938 cell_error(pool, m->cell); in process_prepared_mapping()
949 metadata_operation_failed(pool, "dm_thin_insert_block", r); in process_prepared_mapping()
950 cell_error(pool, m->cell); in process_prepared_mapping()
964 inc_all_io_entry(tc->pool, m->cell->holder); in process_prepared_mapping()
971 mempool_free(m, &pool->mapping_pool); in process_prepared_mapping()
981 mempool_free(m, &tc->pool->mapping_pool); in free_discard_mapping()
1003 metadata_operation_failed(tc->pool, "dm_thin_remove_range", r); in process_prepared_discard_no_passdown()
1009 mempool_free(m, &tc->pool->mapping_pool); in process_prepared_discard_no_passdown()
1024 struct pool *pool = tc->pool; in passdown_double_checking_shared_status() local
1032 r = dm_pool_block_is_used(pool->pmd, b, &used); in passdown_double_checking_shared_status()
1045 r = dm_pool_block_is_used(pool->pmd, e, &used); in passdown_double_checking_shared_status()
1066 struct pool *pool = m->tc->pool; in queue_passdown_pt2() local
1068 spin_lock_irqsave(&pool->lock, flags); in queue_passdown_pt2()
1069 list_add_tail(&m->list, &pool->prepared_discards_pt2); in queue_passdown_pt2()
1070 spin_unlock_irqrestore(&pool->lock, flags); in queue_passdown_pt2()
1071 wake_worker(pool); in queue_passdown_pt2()
1088 struct pool *pool = tc->pool; in process_prepared_discard_passdown_pt1() local
1099 metadata_operation_failed(pool, "dm_thin_remove_range", r); in process_prepared_discard_passdown_pt1()
1102 mempool_free(m, &pool->mapping_pool); in process_prepared_discard_passdown_pt1()
1110 r = dm_pool_inc_data_range(pool->pmd, m->data_block, data_end); in process_prepared_discard_passdown_pt1()
1112 metadata_operation_failed(pool, "dm_pool_inc_data_range", r); in process_prepared_discard_passdown_pt1()
1115 mempool_free(m, &pool->mapping_pool); in process_prepared_discard_passdown_pt1()
1122 dm_device_name(tc->pool->pool_md)); in process_prepared_discard_passdown_pt1()
1145 struct pool *pool = tc->pool; in process_prepared_discard_passdown_pt2() local
1151 r = dm_pool_dec_data_range(pool->pmd, m->data_block, in process_prepared_discard_passdown_pt2()
1154 metadata_operation_failed(pool, "dm_pool_dec_data_range", r); in process_prepared_discard_passdown_pt2()
1160 mempool_free(m, &pool->mapping_pool); in process_prepared_discard_passdown_pt2()
1163 static void process_prepared(struct pool *pool, struct list_head *head, in process_prepared() argument
1171 spin_lock_irqsave(&pool->lock, flags); in process_prepared()
1173 spin_unlock_irqrestore(&pool->lock, flags); in process_prepared()
1182 static int io_overlaps_block(struct pool *pool, struct bio *bio) in io_overlaps_block() argument
1185 (pool->sectors_per_block << SECTOR_SHIFT); in io_overlaps_block()
1188 static int io_overwrites_block(struct pool *pool, struct bio *bio) in io_overwrites_block() argument
1191 io_overlaps_block(pool, bio); in io_overwrites_block()
1201 static int ensure_next_mapping(struct pool *pool) in ensure_next_mapping() argument
1203 if (pool->next_mapping) in ensure_next_mapping()
1206 pool->next_mapping = mempool_alloc(&pool->mapping_pool, GFP_ATOMIC); in ensure_next_mapping()
1208 return pool->next_mapping ? 0 : -ENOMEM; in ensure_next_mapping()
1211 static struct dm_thin_new_mapping *get_next_mapping(struct pool *pool) in get_next_mapping() argument
1213 struct dm_thin_new_mapping *m = pool->next_mapping; in get_next_mapping()
1215 BUG_ON(!pool->next_mapping); in get_next_mapping()
1221 pool->next_mapping = NULL; in get_next_mapping()
1235 dm_kcopyd_zero(tc->pool->copier, 1, &to, 0, copy_complete, m); in ll_zero()
1242 struct pool *pool = tc->pool; in remap_and_issue_overwrite() local
1248 inc_all_io_entry(pool, bio); in remap_and_issue_overwrite()
1261 struct pool *pool = tc->pool; in schedule_copy() local
1262 struct dm_thin_new_mapping *m = get_next_mapping(pool); in schedule_copy()
1277 if (!dm_deferred_set_add_work(pool->shared_read_ds, &m->list)) in schedule_copy()
1286 if (io_overwrites_block(pool, bio)) in schedule_copy()
1292 from.sector = data_origin * pool->sectors_per_block; in schedule_copy()
1296 to.sector = data_dest * pool->sectors_per_block; in schedule_copy()
1299 dm_kcopyd_copy(pool->copier, &from, 1, &to, in schedule_copy()
1305 if (len < pool->sectors_per_block && pool->pf.zero_new_blocks) { in schedule_copy()
1308 data_dest * pool->sectors_per_block + len, in schedule_copy()
1309 (data_dest + 1) * pool->sectors_per_block); in schedule_copy()
1322 tc->pool->sectors_per_block); in schedule_internal_copy()
1329 struct pool *pool = tc->pool; in schedule_zero() local
1330 struct dm_thin_new_mapping *m = get_next_mapping(pool); in schedule_zero()
1344 if (pool->pf.zero_new_blocks) { in schedule_zero()
1345 if (io_overwrites_block(pool, bio)) in schedule_zero()
1348 ll_zero(tc, m, data_block * pool->sectors_per_block, in schedule_zero()
1349 (data_block + 1) * pool->sectors_per_block); in schedule_zero()
1358 struct pool *pool = tc->pool; in schedule_external_copy() local
1359 sector_t virt_block_begin = virt_block * pool->sectors_per_block; in schedule_external_copy()
1360 sector_t virt_block_end = (virt_block + 1) * pool->sectors_per_block; in schedule_external_copy()
1365 pool->sectors_per_block); in schedule_external_copy()
1376 static void set_pool_mode(struct pool *pool, enum pool_mode new_mode);
1378 static void requeue_bios(struct pool *pool);
1385 static bool is_read_only(struct pool *pool) in is_read_only() argument
1387 return is_read_only_pool_mode(get_pool_mode(pool)); in is_read_only()
1390 static void check_for_metadata_space(struct pool *pool) in check_for_metadata_space() argument
1396 r = dm_pool_get_free_metadata_block_count(pool->pmd, &nr_free); in check_for_metadata_space()
1402 if (ooms_reason && !is_read_only(pool)) { in check_for_metadata_space()
1404 set_pool_mode(pool, PM_OUT_OF_METADATA_SPACE); in check_for_metadata_space()
1408 static void check_for_data_space(struct pool *pool) in check_for_data_space() argument
1413 if (get_pool_mode(pool) != PM_OUT_OF_DATA_SPACE) in check_for_data_space()
1416 r = dm_pool_get_free_block_count(pool->pmd, &nr_free); in check_for_data_space()
1421 set_pool_mode(pool, PM_WRITE); in check_for_data_space()
1422 requeue_bios(pool); in check_for_data_space()
1430 static int commit(struct pool *pool) in commit() argument
1434 if (get_pool_mode(pool) >= PM_OUT_OF_METADATA_SPACE) in commit()
1437 r = dm_pool_commit_metadata(pool->pmd); in commit()
1439 metadata_operation_failed(pool, "dm_pool_commit_metadata", r); in commit()
1441 check_for_metadata_space(pool); in commit()
1442 check_for_data_space(pool); in commit()
1448 static void check_low_water_mark(struct pool *pool, dm_block_t free_blocks) in check_low_water_mark() argument
1452 if (free_blocks <= pool->low_water_blocks && !pool->low_water_triggered) { in check_low_water_mark()
1454 dm_device_name(pool->pool_md)); in check_low_water_mark()
1455 spin_lock_irqsave(&pool->lock, flags); in check_low_water_mark()
1456 pool->low_water_triggered = true; in check_low_water_mark()
1457 spin_unlock_irqrestore(&pool->lock, flags); in check_low_water_mark()
1458 dm_table_event(pool->ti->table); in check_low_water_mark()
1466 struct pool *pool = tc->pool; in alloc_data_block() local
1468 if (WARN_ON(get_pool_mode(pool) != PM_WRITE)) in alloc_data_block()
1471 r = dm_pool_get_free_block_count(pool->pmd, &free_blocks); in alloc_data_block()
1473 metadata_operation_failed(pool, "dm_pool_get_free_block_count", r); in alloc_data_block()
1477 check_low_water_mark(pool, free_blocks); in alloc_data_block()
1484 r = commit(pool); in alloc_data_block()
1488 r = dm_pool_get_free_block_count(pool->pmd, &free_blocks); in alloc_data_block()
1490 metadata_operation_failed(pool, "dm_pool_get_free_block_count", r); in alloc_data_block()
1495 set_pool_mode(pool, PM_OUT_OF_DATA_SPACE); in alloc_data_block()
1500 r = dm_pool_alloc_data_block(pool->pmd, result); in alloc_data_block()
1503 set_pool_mode(pool, PM_OUT_OF_DATA_SPACE); in alloc_data_block()
1505 metadata_operation_failed(pool, "dm_pool_alloc_data_block", r); in alloc_data_block()
1509 r = dm_pool_get_free_metadata_block_count(pool->pmd, &free_blocks); in alloc_data_block()
1511 metadata_operation_failed(pool, "dm_pool_get_free_metadata_block_count", r); in alloc_data_block()
1517 r = commit(pool); in alloc_data_block()
1540 static blk_status_t should_error_unserviceable_bio(struct pool *pool) in should_error_unserviceable_bio() argument
1542 enum pool_mode m = get_pool_mode(pool); in should_error_unserviceable_bio()
1551 return pool->pf.error_if_no_space ? BLK_STS_NOSPC : 0; in should_error_unserviceable_bio()
1564 static void handle_unserviceable_bio(struct pool *pool, struct bio *bio) in handle_unserviceable_bio() argument
1566 blk_status_t error = should_error_unserviceable_bio(pool); in handle_unserviceable_bio()
1575 static void retry_bios_on_resume(struct pool *pool, struct dm_bio_prison_cell *cell) in retry_bios_on_resume() argument
1581 error = should_error_unserviceable_bio(pool); in retry_bios_on_resume()
1583 cell_error_with_code(pool, cell, error); in retry_bios_on_resume()
1588 cell_release(pool, cell, &bios); in retry_bios_on_resume()
1597 struct pool *pool = tc->pool; in process_discard_cell_no_passdown() local
1598 struct dm_thin_new_mapping *m = get_next_mapping(pool); in process_discard_cell_no_passdown()
1610 if (!dm_deferred_set_add_work(pool->all_io_ds, &m->list)) in process_discard_cell_no_passdown()
1611 pool->process_prepared_discard(m); in process_discard_cell_no_passdown()
1617 struct pool *pool = tc->pool; in break_up_discard_bio() local
1627 r = ensure_next_mapping(pool); in break_up_discard_bio()
1642 if (bio_detain(tc->pool, &data_key, NULL, &data_cell)) { in break_up_discard_bio()
1652 m = get_next_mapping(pool); in break_up_discard_bio()
1670 if (!dm_deferred_set_add_work(pool->all_io_ds, &m->list)) in break_up_discard_bio()
1671 pool->process_prepared_discard(m); in break_up_discard_bio()
1714 if (bio_detain(tc->pool, &virt_key, bio, &virt_cell)) in process_discard_bio()
1724 tc->pool->process_discard_cell(tc, virt_cell); in process_discard_bio()
1734 struct pool *pool = tc->pool; in break_sharing() local
1744 retry_bios_on_resume(pool, cell); in break_sharing()
1750 cell_error(pool, cell); in break_sharing()
1768 h->shared_read_entry = dm_deferred_entry_inc(info->tc->pool->shared_read_ds); in __remap_and_issue_shared_cell()
1769 inc_all_io_entry(info->tc->pool, bio); in __remap_and_issue_shared_cell()
1786 cell_visit_release(tc->pool, __remap_and_issue_shared_cell, in remap_and_issue_shared_cell()
1802 struct pool *pool = tc->pool; in process_shared_bio() local
1810 if (bio_detain(pool, &key, bio, &data_cell)) { in process_shared_bio()
1821 h->shared_read_entry = dm_deferred_entry_inc(pool->shared_read_ds); in process_shared_bio()
1822 inc_all_io_entry(pool, bio); in process_shared_bio()
1835 struct pool *pool = tc->pool; in provision_block() local
1841 inc_all_io_entry(pool, bio); in provision_block()
1868 retry_bios_on_resume(pool, cell); in provision_block()
1874 cell_error(pool, cell); in provision_block()
1882 struct pool *pool = tc->pool; in process_cell() local
1888 cell_requeue(pool, cell); in process_cell()
1898 inc_all_io_entry(pool, bio); in process_cell()
1906 inc_all_io_entry(pool, bio); in process_cell()
1936 struct pool *pool = tc->pool; in process_bio() local
1946 if (bio_detain(pool, &key, bio, &cell)) in process_bio()
1964 handle_unserviceable_bio(tc->pool, bio); in __process_bio_read_only()
1968 inc_all_io_entry(tc->pool, bio); in __process_bio_read_only()
1979 handle_unserviceable_bio(tc->pool, bio); in __process_bio_read_only()
1984 inc_all_io_entry(tc->pool, bio); in __process_bio_read_only()
2025 cell_success(tc->pool, cell); in process_cell_success()
2030 cell_error(tc->pool, cell); in process_cell_fail()
2037 static int need_commit_due_to_time(struct pool *pool) in need_commit_due_to_time() argument
2039 return !time_in_range(jiffies, pool->last_commit_jiffies, in need_commit_due_to_time()
2040 pool->last_commit_jiffies + COMMIT_PERIOD); in need_commit_due_to_time()
2109 struct pool *pool = tc->pool; in process_thin_deferred_bios() local
2145 if (ensure_next_mapping(pool)) { in process_thin_deferred_bios()
2154 pool->process_discard(tc, bio); in process_thin_deferred_bios()
2156 pool->process_bio(tc, bio); in process_thin_deferred_bios()
2159 throttle_work_update(&pool->throttle); in process_thin_deferred_bios()
2160 dm_pool_issue_prefetches(pool->pmd); in process_thin_deferred_bios()
2183 static unsigned sort_cells(struct pool *pool, struct list_head *cells) in sort_cells() argument
2192 pool->cell_sort_array[count++] = cell; in sort_cells()
2196 sort(pool->cell_sort_array, count, sizeof(cell), cmp_cells, NULL); in sort_cells()
2203 struct pool *pool = tc->pool; in process_thin_deferred_cells() local
2219 count = sort_cells(tc->pool, &cells); in process_thin_deferred_cells()
2222 cell = pool->cell_sort_array[i]; in process_thin_deferred_cells()
2230 if (ensure_next_mapping(pool)) { in process_thin_deferred_cells()
2232 list_add(&pool->cell_sort_array[j]->user_list, &cells); in process_thin_deferred_cells()
2241 pool->process_discard_cell(tc, cell); in process_thin_deferred_cells()
2243 pool->process_cell(tc, cell); in process_thin_deferred_cells()
2256 static struct thin_c *get_first_thin(struct pool *pool) in get_first_thin() argument
2261 if (!list_empty(&pool->active_thins)) { in get_first_thin()
2262 tc = list_entry_rcu(pool->active_thins.next, struct thin_c, list); in get_first_thin()
2270 static struct thin_c *get_next_thin(struct pool *pool, struct thin_c *tc) in get_next_thin() argument
2275 list_for_each_entry_continue_rcu(tc, &pool->active_thins, list) { in get_next_thin()
2287 static void process_deferred_bios(struct pool *pool) in process_deferred_bios() argument
2294 tc = get_first_thin(pool); in process_deferred_bios()
2298 tc = get_next_thin(pool, tc); in process_deferred_bios()
2306 spin_lock_irqsave(&pool->lock, flags); in process_deferred_bios()
2307 bio_list_merge(&bios, &pool->deferred_flush_bios); in process_deferred_bios()
2308 bio_list_init(&pool->deferred_flush_bios); in process_deferred_bios()
2309 spin_unlock_irqrestore(&pool->lock, flags); in process_deferred_bios()
2312 !(dm_pool_changed_this_transaction(pool->pmd) && need_commit_due_to_time(pool))) in process_deferred_bios()
2315 if (commit(pool)) { in process_deferred_bios()
2320 pool->last_commit_jiffies = jiffies; in process_deferred_bios()
2328 struct pool *pool = container_of(ws, struct pool, worker); in do_worker() local
2330 throttle_work_start(&pool->throttle); in do_worker()
2331 dm_pool_issue_prefetches(pool->pmd); in do_worker()
2332 throttle_work_update(&pool->throttle); in do_worker()
2333 process_prepared(pool, &pool->prepared_mappings, &pool->process_prepared_mapping); in do_worker()
2334 throttle_work_update(&pool->throttle); in do_worker()
2335 process_prepared(pool, &pool->prepared_discards, &pool->process_prepared_discard); in do_worker()
2336 throttle_work_update(&pool->throttle); in do_worker()
2337 process_prepared(pool, &pool->prepared_discards_pt2, &pool->process_prepared_discard_pt2); in do_worker()
2338 throttle_work_update(&pool->throttle); in do_worker()
2339 process_deferred_bios(pool); in do_worker()
2340 throttle_work_complete(&pool->throttle); in do_worker()
2349 struct pool *pool = container_of(to_delayed_work(ws), struct pool, waker); in do_waker() local
2350 wake_worker(pool); in do_waker()
2351 queue_delayed_work(pool->wq, &pool->waker, COMMIT_PERIOD); in do_waker()
2354 static void notify_of_pool_mode_change_to_oods(struct pool *pool);
2363 struct pool *pool = container_of(to_delayed_work(ws), struct pool, in do_no_space_timeout() local
2366 if (get_pool_mode(pool) == PM_OUT_OF_DATA_SPACE && !pool->pf.error_if_no_space) { in do_no_space_timeout()
2367 pool->pf.error_if_no_space = true; in do_no_space_timeout()
2368 notify_of_pool_mode_change_to_oods(pool); in do_no_space_timeout()
2369 error_retry_list_with_code(pool, BLK_STS_NOSPC); in do_no_space_timeout()
2390 static void pool_work_wait(struct pool_work *pw, struct pool *pool, in pool_work_wait() argument
2395 queue_work(pool->wq, &pw->worker); in pool_work_wait()
2431 pool_work_wait(&w.pw, tc->pool, fn); in noflush_work()
2436 static enum pool_mode get_pool_mode(struct pool *pool) in get_pool_mode() argument
2438 return pool->pf.mode; in get_pool_mode()
2441 static void notify_of_pool_mode_change(struct pool *pool, const char *new_mode) in notify_of_pool_mode_change() argument
2443 dm_table_event(pool->ti->table); in notify_of_pool_mode_change()
2445 dm_device_name(pool->pool_md), new_mode); in notify_of_pool_mode_change()
2448 static void notify_of_pool_mode_change_to_oods(struct pool *pool) in notify_of_pool_mode_change_to_oods() argument
2450 if (!pool->pf.error_if_no_space) in notify_of_pool_mode_change_to_oods()
2451 notify_of_pool_mode_change(pool, "out-of-data-space (queue IO)"); in notify_of_pool_mode_change_to_oods()
2453 notify_of_pool_mode_change(pool, "out-of-data-space (error IO)"); in notify_of_pool_mode_change_to_oods()
2461 static void set_discard_callbacks(struct pool *pool) in set_discard_callbacks() argument
2463 struct pool_c *pt = pool->ti->private; in set_discard_callbacks()
2466 pool->process_discard_cell = process_discard_cell_passdown; in set_discard_callbacks()
2467 pool->process_prepared_discard = process_prepared_discard_passdown_pt1; in set_discard_callbacks()
2468 pool->process_prepared_discard_pt2 = process_prepared_discard_passdown_pt2; in set_discard_callbacks()
2470 pool->process_discard_cell = process_discard_cell_no_passdown; in set_discard_callbacks()
2471 pool->process_prepared_discard = process_prepared_discard_no_passdown; in set_discard_callbacks()
2475 static void set_pool_mode(struct pool *pool, enum pool_mode new_mode) in set_pool_mode() argument
2477 struct pool_c *pt = pool->ti->private; in set_pool_mode()
2478 bool needs_check = dm_pool_metadata_needs_check(pool->pmd); in set_pool_mode()
2479 enum pool_mode old_mode = get_pool_mode(pool); in set_pool_mode()
2488 dm_device_name(pool->pool_md)); in set_pool_mode()
2505 notify_of_pool_mode_change(pool, "failure"); in set_pool_mode()
2506 dm_pool_metadata_read_only(pool->pmd); in set_pool_mode()
2507 pool->process_bio = process_bio_fail; in set_pool_mode()
2508 pool->process_discard = process_bio_fail; in set_pool_mode()
2509 pool->process_cell = process_cell_fail; in set_pool_mode()
2510 pool->process_discard_cell = process_cell_fail; in set_pool_mode()
2511 pool->process_prepared_mapping = process_prepared_mapping_fail; in set_pool_mode()
2512 pool->process_prepared_discard = process_prepared_discard_fail; in set_pool_mode()
2514 error_retry_list(pool); in set_pool_mode()
2520 notify_of_pool_mode_change(pool, "read-only"); in set_pool_mode()
2521 dm_pool_metadata_read_only(pool->pmd); in set_pool_mode()
2522 pool->process_bio = process_bio_read_only; in set_pool_mode()
2523 pool->process_discard = process_bio_success; in set_pool_mode()
2524 pool->process_cell = process_cell_read_only; in set_pool_mode()
2525 pool->process_discard_cell = process_cell_success; in set_pool_mode()
2526 pool->process_prepared_mapping = process_prepared_mapping_fail; in set_pool_mode()
2527 pool->process_prepared_discard = process_prepared_discard_success; in set_pool_mode()
2529 error_retry_list(pool); in set_pool_mode()
2542 notify_of_pool_mode_change_to_oods(pool); in set_pool_mode()
2543 pool->out_of_data_space = true; in set_pool_mode()
2544 pool->process_bio = process_bio_read_only; in set_pool_mode()
2545 pool->process_discard = process_discard_bio; in set_pool_mode()
2546 pool->process_cell = process_cell_read_only; in set_pool_mode()
2547 pool->process_prepared_mapping = process_prepared_mapping; in set_pool_mode()
2548 set_discard_callbacks(pool); in set_pool_mode()
2550 if (!pool->pf.error_if_no_space && no_space_timeout) in set_pool_mode()
2551 queue_delayed_work(pool->wq, &pool->no_space_timeout, no_space_timeout); in set_pool_mode()
2556 notify_of_pool_mode_change(pool, "write"); in set_pool_mode()
2558 cancel_delayed_work_sync(&pool->no_space_timeout); in set_pool_mode()
2559 pool->out_of_data_space = false; in set_pool_mode()
2560 pool->pf.error_if_no_space = pt->requested_pf.error_if_no_space; in set_pool_mode()
2561 dm_pool_metadata_read_write(pool->pmd); in set_pool_mode()
2562 pool->process_bio = process_bio; in set_pool_mode()
2563 pool->process_discard = process_discard_bio; in set_pool_mode()
2564 pool->process_cell = process_cell; in set_pool_mode()
2565 pool->process_prepared_mapping = process_prepared_mapping; in set_pool_mode()
2566 set_discard_callbacks(pool); in set_pool_mode()
2570 pool->pf.mode = new_mode; in set_pool_mode()
2578 static void abort_transaction(struct pool *pool) in abort_transaction() argument
2580 const char *dev_name = dm_device_name(pool->pool_md); in abort_transaction()
2583 if (dm_pool_abort_metadata(pool->pmd)) { in abort_transaction()
2585 set_pool_mode(pool, PM_FAIL); in abort_transaction()
2588 if (dm_pool_metadata_set_needs_check(pool->pmd)) { in abort_transaction()
2590 set_pool_mode(pool, PM_FAIL); in abort_transaction()
2594 static void metadata_operation_failed(struct pool *pool, const char *op, int r) in metadata_operation_failed() argument
2597 dm_device_name(pool->pool_md), op, r); in metadata_operation_failed()
2599 abort_transaction(pool); in metadata_operation_failed()
2600 set_pool_mode(pool, PM_READ_ONLY); in metadata_operation_failed()
2615 struct pool *pool = tc->pool; in thin_defer_bio() local
2621 wake_worker(pool); in thin_defer_bio()
2626 struct pool *pool = tc->pool; in thin_defer_bio_with_throttle() local
2628 throttle_lock(&pool->throttle); in thin_defer_bio_with_throttle()
2630 throttle_unlock(&pool->throttle); in thin_defer_bio_with_throttle()
2636 struct pool *pool = tc->pool; in thin_defer_cell() local
2638 throttle_lock(&pool->throttle); in thin_defer_cell()
2642 throttle_unlock(&pool->throttle); in thin_defer_cell()
2644 wake_worker(pool); in thin_defer_cell()
2679 if (get_pool_mode(tc->pool) == PM_FAIL) { in thin_bio_map()
2694 if (bio_detain(tc->pool, &key, bio, &virt_cell)) in thin_bio_map()
2724 if (bio_detain(tc->pool, &key, bio, &data_cell)) { in thin_bio_map()
2729 inc_all_io_entry(tc->pool, bio); in thin_bio_map()
2758 if (get_pool_mode(pt->pool) == PM_OUT_OF_DATA_SPACE) in pool_is_congested()
2765 static void requeue_bios(struct pool *pool) in requeue_bios() argument
2771 list_for_each_entry_rcu(tc, &pool->active_thins, list) { in requeue_bios()
2801 struct pool *pool = pt->pool; in disable_passdown_if_not_supported() local
2813 else if (data_limits->max_discard_sectors < pool->sectors_per_block) in disable_passdown_if_not_supported()
2822 static int bind_control_target(struct pool *pool, struct dm_target *ti) in bind_control_target() argument
2829 enum pool_mode old_mode = get_pool_mode(pool); in bind_control_target()
2839 pool->ti = ti; in bind_control_target()
2840 pool->pf = pt->adjusted_pf; in bind_control_target()
2841 pool->low_water_blocks = pt->low_water_blocks; in bind_control_target()
2843 set_pool_mode(pool, new_mode); in bind_control_target()
2848 static void unbind_control_target(struct pool *pool, struct dm_target *ti) in unbind_control_target() argument
2850 if (pool->ti == ti) in unbind_control_target()
2851 pool->ti = NULL; in unbind_control_target()
2867 static void __pool_destroy(struct pool *pool) in __pool_destroy() argument
2869 __pool_table_remove(pool); in __pool_destroy()
2871 vfree(pool->cell_sort_array); in __pool_destroy()
2872 if (dm_pool_metadata_close(pool->pmd) < 0) in __pool_destroy()
2875 dm_bio_prison_destroy(pool->prison); in __pool_destroy()
2876 dm_kcopyd_client_destroy(pool->copier); in __pool_destroy()
2878 if (pool->wq) in __pool_destroy()
2879 destroy_workqueue(pool->wq); in __pool_destroy()
2881 if (pool->next_mapping) in __pool_destroy()
2882 mempool_free(pool->next_mapping, &pool->mapping_pool); in __pool_destroy()
2883 mempool_exit(&pool->mapping_pool); in __pool_destroy()
2884 dm_deferred_set_destroy(pool->shared_read_ds); in __pool_destroy()
2885 dm_deferred_set_destroy(pool->all_io_ds); in __pool_destroy()
2886 kfree(pool); in __pool_destroy()
2891 static struct pool *pool_create(struct mapped_device *pool_md, in pool_create()
2898 struct pool *pool; in pool_create() local
2905 return (struct pool *)pmd; in pool_create()
2908 pool = kzalloc(sizeof(*pool), GFP_KERNEL); in pool_create()
2909 if (!pool) { in pool_create()
2915 pool->pmd = pmd; in pool_create()
2916 pool->sectors_per_block = block_size; in pool_create()
2918 pool->sectors_per_block_shift = -1; in pool_create()
2920 pool->sectors_per_block_shift = __ffs(block_size); in pool_create()
2921 pool->low_water_blocks = 0; in pool_create()
2922 pool_features_init(&pool->pf); in pool_create()
2923 pool->prison = dm_bio_prison_create(); in pool_create()
2924 if (!pool->prison) { in pool_create()
2930 pool->copier = dm_kcopyd_client_create(&dm_kcopyd_throttle); in pool_create()
2931 if (IS_ERR(pool->copier)) { in pool_create()
2932 r = PTR_ERR(pool->copier); in pool_create()
2942 pool->wq = alloc_ordered_workqueue("dm-" DM_MSG_PREFIX, WQ_MEM_RECLAIM); in pool_create()
2943 if (!pool->wq) { in pool_create()
2949 throttle_init(&pool->throttle); in pool_create()
2950 INIT_WORK(&pool->worker, do_worker); in pool_create()
2951 INIT_DELAYED_WORK(&pool->waker, do_waker); in pool_create()
2952 INIT_DELAYED_WORK(&pool->no_space_timeout, do_no_space_timeout); in pool_create()
2953 spin_lock_init(&pool->lock); in pool_create()
2954 bio_list_init(&pool->deferred_flush_bios); in pool_create()
2955 INIT_LIST_HEAD(&pool->prepared_mappings); in pool_create()
2956 INIT_LIST_HEAD(&pool->prepared_discards); in pool_create()
2957 INIT_LIST_HEAD(&pool->prepared_discards_pt2); in pool_create()
2958 INIT_LIST_HEAD(&pool->active_thins); in pool_create()
2959 pool->low_water_triggered = false; in pool_create()
2960 pool->suspended = true; in pool_create()
2961 pool->out_of_data_space = false; in pool_create()
2963 pool->shared_read_ds = dm_deferred_set_create(); in pool_create()
2964 if (!pool->shared_read_ds) { in pool_create()
2970 pool->all_io_ds = dm_deferred_set_create(); in pool_create()
2971 if (!pool->all_io_ds) { in pool_create()
2977 pool->next_mapping = NULL; in pool_create()
2978 r = mempool_init_slab_pool(&pool->mapping_pool, MAPPING_POOL_SIZE, in pool_create()
2986 pool->cell_sort_array = in pool_create()
2988 sizeof(*pool->cell_sort_array))); in pool_create()
2989 if (!pool->cell_sort_array) { in pool_create()
2995 pool->ref_count = 1; in pool_create()
2996 pool->last_commit_jiffies = jiffies; in pool_create()
2997 pool->pool_md = pool_md; in pool_create()
2998 pool->md_dev = metadata_dev; in pool_create()
2999 __pool_table_insert(pool); in pool_create()
3001 return pool; in pool_create()
3004 mempool_exit(&pool->mapping_pool); in pool_create()
3006 dm_deferred_set_destroy(pool->all_io_ds); in pool_create()
3008 dm_deferred_set_destroy(pool->shared_read_ds); in pool_create()
3010 destroy_workqueue(pool->wq); in pool_create()
3012 dm_kcopyd_client_destroy(pool->copier); in pool_create()
3014 dm_bio_prison_destroy(pool->prison); in pool_create()
3016 kfree(pool); in pool_create()
3024 static void __pool_inc(struct pool *pool) in __pool_inc() argument
3027 pool->ref_count++; in __pool_inc()
3030 static void __pool_dec(struct pool *pool) in __pool_dec() argument
3033 BUG_ON(!pool->ref_count); in __pool_dec()
3034 if (!--pool->ref_count) in __pool_dec()
3035 __pool_destroy(pool); in __pool_dec()
3038 static struct pool *__pool_find(struct mapped_device *pool_md, in __pool_find()
3043 struct pool *pool = __pool_table_lookup_metadata_dev(metadata_dev); in __pool_find() local
3045 if (pool) { in __pool_find()
3046 if (pool->pool_md != pool_md) { in __pool_find()
3050 __pool_inc(pool); in __pool_find()
3053 pool = __pool_table_lookup(pool_md); in __pool_find()
3054 if (pool) { in __pool_find()
3055 if (pool->md_dev != metadata_dev) { in __pool_find()
3059 __pool_inc(pool); in __pool_find()
3062 pool = pool_create(pool_md, metadata_dev, block_size, read_only, error); in __pool_find()
3067 return pool; in __pool_find()
3079 unbind_control_target(pt->pool, ti); in pool_dtr()
3080 __pool_dec(pt->pool); in pool_dtr()
3140 struct pool *pool = context; in metadata_low_callback() local
3143 dm_device_name(pool->pool_md)); in metadata_low_callback()
3145 dm_table_event(pool->ti->table); in metadata_low_callback()
3216 struct pool *pool; in pool_ctr() local
3284 pool = __pool_find(dm_table_get_md(ti->table), metadata_dev->bdev, in pool_ctr()
3286 if (IS_ERR(pool)) { in pool_ctr()
3287 r = PTR_ERR(pool); in pool_ctr()
3297 if (!pool_created && pf.discard_enabled != pool->pf.discard_enabled) { in pool_ctr()
3303 pt->pool = pool; in pool_ctr()
3328 r = dm_pool_register_metadata_threshold(pt->pool->pmd, in pool_ctr()
3331 pool); in pool_ctr()
3343 __pool_dec(pool); in pool_ctr()
3360 struct pool *pool = pt->pool; in pool_map() local
3366 spin_lock_irqsave(&pool->lock, flags); in pool_map()
3369 spin_unlock_irqrestore(&pool->lock, flags); in pool_map()
3378 struct pool *pool = pt->pool; in maybe_resize_data_dev() local
3384 (void) sector_div(data_size, pool->sectors_per_block); in maybe_resize_data_dev()
3386 r = dm_pool_get_data_dev_size(pool->pmd, &sb_data_size); in maybe_resize_data_dev()
3389 dm_device_name(pool->pool_md)); in maybe_resize_data_dev()
3395 dm_device_name(pool->pool_md), in maybe_resize_data_dev()
3400 if (dm_pool_metadata_needs_check(pool->pmd)) { in maybe_resize_data_dev()
3402 dm_device_name(pool->pool_md)); in maybe_resize_data_dev()
3408 dm_device_name(pool->pool_md), in maybe_resize_data_dev()
3410 r = dm_pool_resize_data_dev(pool->pmd, data_size); in maybe_resize_data_dev()
3412 metadata_operation_failed(pool, "dm_pool_resize_data_dev", r); in maybe_resize_data_dev()
3426 struct pool *pool = pt->pool; in maybe_resize_metadata_dev() local
3431 metadata_dev_size = get_metadata_dev_size_in_blocks(pool->md_dev); in maybe_resize_metadata_dev()
3433 r = dm_pool_get_metadata_dev_size(pool->pmd, &sb_metadata_dev_size); in maybe_resize_metadata_dev()
3436 dm_device_name(pool->pool_md)); in maybe_resize_metadata_dev()
3442 dm_device_name(pool->pool_md), in maybe_resize_metadata_dev()
3447 if (dm_pool_metadata_needs_check(pool->pmd)) { in maybe_resize_metadata_dev()
3449 dm_device_name(pool->pool_md)); in maybe_resize_metadata_dev()
3453 warn_if_metadata_device_too_big(pool->md_dev); in maybe_resize_metadata_dev()
3455 dm_device_name(pool->pool_md), in maybe_resize_metadata_dev()
3458 if (get_pool_mode(pool) == PM_OUT_OF_METADATA_SPACE) in maybe_resize_metadata_dev()
3459 set_pool_mode(pool, PM_WRITE); in maybe_resize_metadata_dev()
3461 r = dm_pool_resize_metadata_dev(pool->pmd, metadata_dev_size); in maybe_resize_metadata_dev()
3463 metadata_operation_failed(pool, "dm_pool_resize_metadata_dev", r); in maybe_resize_metadata_dev()
3489 struct pool *pool = pt->pool; in pool_preresume() local
3494 r = bind_control_target(pool, ti); in pool_preresume()
3507 (void) commit(pool); in pool_preresume()
3512 static void pool_suspend_active_thins(struct pool *pool) in pool_suspend_active_thins() argument
3517 tc = get_first_thin(pool); in pool_suspend_active_thins()
3520 tc = get_next_thin(pool, tc); in pool_suspend_active_thins()
3524 static void pool_resume_active_thins(struct pool *pool) in pool_resume_active_thins() argument
3529 tc = get_first_thin(pool); in pool_resume_active_thins()
3532 tc = get_next_thin(pool, tc); in pool_resume_active_thins()
3539 struct pool *pool = pt->pool; in pool_resume() local
3546 requeue_bios(pool); in pool_resume()
3547 pool_resume_active_thins(pool); in pool_resume()
3549 spin_lock_irqsave(&pool->lock, flags); in pool_resume()
3550 pool->low_water_triggered = false; in pool_resume()
3551 pool->suspended = false; in pool_resume()
3552 spin_unlock_irqrestore(&pool->lock, flags); in pool_resume()
3554 do_waker(&pool->waker.work); in pool_resume()
3560 struct pool *pool = pt->pool; in pool_presuspend() local
3563 spin_lock_irqsave(&pool->lock, flags); in pool_presuspend()
3564 pool->suspended = true; in pool_presuspend()
3565 spin_unlock_irqrestore(&pool->lock, flags); in pool_presuspend()
3567 pool_suspend_active_thins(pool); in pool_presuspend()
3573 struct pool *pool = pt->pool; in pool_presuspend_undo() local
3576 pool_resume_active_thins(pool); in pool_presuspend_undo()
3578 spin_lock_irqsave(&pool->lock, flags); in pool_presuspend_undo()
3579 pool->suspended = false; in pool_presuspend_undo()
3580 spin_unlock_irqrestore(&pool->lock, flags); in pool_presuspend_undo()
3586 struct pool *pool = pt->pool; in pool_postsuspend() local
3588 cancel_delayed_work_sync(&pool->waker); in pool_postsuspend()
3589 cancel_delayed_work_sync(&pool->no_space_timeout); in pool_postsuspend()
3590 flush_workqueue(pool->wq); in pool_postsuspend()
3591 (void) commit(pool); in pool_postsuspend()
3617 static int process_create_thin_mesg(unsigned argc, char **argv, struct pool *pool) in process_create_thin_mesg() argument
3630 r = dm_pool_create_thin(pool->pmd, dev_id); in process_create_thin_mesg()
3640 static int process_create_snap_mesg(unsigned argc, char **argv, struct pool *pool) in process_create_snap_mesg() argument
3658 r = dm_pool_create_snap(pool->pmd, dev_id, origin_dev_id); in process_create_snap_mesg()
3668 static int process_delete_mesg(unsigned argc, char **argv, struct pool *pool) in process_delete_mesg() argument
3681 r = dm_pool_delete_thin_device(pool->pmd, dev_id); in process_delete_mesg()
3688 static int process_set_transaction_id_mesg(unsigned argc, char **argv, struct pool *pool) in process_set_transaction_id_mesg() argument
3707 r = dm_pool_set_metadata_transaction_id(pool->pmd, old_id, new_id); in process_set_transaction_id_mesg()
3717 static int process_reserve_metadata_snap_mesg(unsigned argc, char **argv, struct pool *pool) in process_reserve_metadata_snap_mesg() argument
3725 (void) commit(pool); in process_reserve_metadata_snap_mesg()
3727 r = dm_pool_reserve_metadata_snap(pool->pmd); in process_reserve_metadata_snap_mesg()
3734 static int process_release_metadata_snap_mesg(unsigned argc, char **argv, struct pool *pool) in process_release_metadata_snap_mesg() argument
3742 r = dm_pool_release_metadata_snap(pool->pmd); in process_release_metadata_snap_mesg()
3763 struct pool *pool = pt->pool; in pool_message() local
3765 if (get_pool_mode(pool) >= PM_OUT_OF_METADATA_SPACE) { in pool_message()
3767 dm_device_name(pool->pool_md)); in pool_message()
3772 r = process_create_thin_mesg(argc, argv, pool); in pool_message()
3775 r = process_create_snap_mesg(argc, argv, pool); in pool_message()
3778 r = process_delete_mesg(argc, argv, pool); in pool_message()
3781 r = process_set_transaction_id_mesg(argc, argv, pool); in pool_message()
3784 r = process_reserve_metadata_snap_mesg(argc, argv, pool); in pool_message()
3787 r = process_release_metadata_snap_mesg(argc, argv, pool); in pool_message()
3793 (void) commit(pool); in pool_message()
3843 struct pool *pool = pt->pool; in pool_status() local
3847 if (get_pool_mode(pool) == PM_FAIL) { in pool_status()
3854 (void) commit(pool); in pool_status()
3856 r = dm_pool_get_metadata_transaction_id(pool->pmd, &transaction_id); in pool_status()
3859 dm_device_name(pool->pool_md), r); in pool_status()
3863 r = dm_pool_get_free_metadata_block_count(pool->pmd, &nr_free_blocks_metadata); in pool_status()
3866 dm_device_name(pool->pool_md), r); in pool_status()
3870 r = dm_pool_get_metadata_dev_size(pool->pmd, &nr_blocks_metadata); in pool_status()
3873 dm_device_name(pool->pool_md), r); in pool_status()
3877 r = dm_pool_get_free_block_count(pool->pmd, &nr_free_blocks_data); in pool_status()
3880 dm_device_name(pool->pool_md), r); in pool_status()
3884 r = dm_pool_get_data_dev_size(pool->pmd, &nr_blocks_data); in pool_status()
3887 dm_device_name(pool->pool_md), r); in pool_status()
3891 r = dm_pool_get_metadata_snap(pool->pmd, &held_root); in pool_status()
3894 dm_device_name(pool->pool_md), r); in pool_status()
3910 mode = get_pool_mode(pool); in pool_status()
3918 if (!pool->pf.discard_enabled) in pool_status()
3920 else if (pool->pf.discard_passdown) in pool_status()
3925 if (pool->pf.error_if_no_space) in pool_status()
3930 if (dm_pool_metadata_needs_check(pool->pmd)) in pool_status()
3943 (unsigned long)pool->sectors_per_block, in pool_status()
3965 struct pool *pool = pt->pool; in pool_io_hints() local
3977 if (limits->max_sectors < pool->sectors_per_block) { in pool_io_hints()
3978 while (!is_factor(pool->sectors_per_block, limits->max_sectors)) { in pool_io_hints()
3989 if (io_opt_sectors < pool->sectors_per_block || in pool_io_hints()
3990 !is_factor(io_opt_sectors, pool->sectors_per_block)) { in pool_io_hints()
3991 if (is_factor(pool->sectors_per_block, limits->max_sectors)) in pool_io_hints()
3994 blk_limits_io_min(limits, pool->sectors_per_block << SECTOR_SHIFT); in pool_io_hints()
3995 blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT); in pool_io_hints()
4061 spin_lock_irqsave(&tc->pool->lock, flags); in thin_dtr()
4063 spin_unlock_irqrestore(&tc->pool->lock, flags); in thin_dtr()
4071 __pool_dec(tc->pool); in thin_dtr()
4151 tc->pool = __pool_table_lookup(pool_md); in thin_ctr()
4152 if (!tc->pool) { in thin_ctr()
4157 __pool_inc(tc->pool); in thin_ctr()
4159 if (get_pool_mode(tc->pool) == PM_FAIL) { in thin_ctr()
4165 r = dm_pool_open_thin_device(tc->pool->pmd, tc->dev_id, &tc->td); in thin_ctr()
4171 r = dm_set_target_max_io_len(ti, tc->pool->sectors_per_block); in thin_ctr()
4180 if (tc->pool->pf.discard_enabled) { in thin_ctr()
4188 spin_lock_irqsave(&tc->pool->lock, flags); in thin_ctr()
4189 if (tc->pool->suspended) { in thin_ctr()
4190 spin_unlock_irqrestore(&tc->pool->lock, flags); in thin_ctr()
4198 list_add_tail_rcu(&tc->list, &tc->pool->active_thins); in thin_ctr()
4199 spin_unlock_irqrestore(&tc->pool->lock, flags); in thin_ctr()
4215 __pool_dec(tc->pool); in thin_ctr()
4245 struct pool *pool = h->tc->pool; in thin_endio() local
4251 spin_lock_irqsave(&pool->lock, flags); in thin_endio()
4256 spin_unlock_irqrestore(&pool->lock, flags); in thin_endio()
4263 spin_lock_irqsave(&pool->lock, flags); in thin_endio()
4265 list_add_tail(&m->list, &pool->prepared_discards); in thin_endio()
4266 spin_unlock_irqrestore(&pool->lock, flags); in thin_endio()
4267 wake_worker(pool); in thin_endio()
4318 if (get_pool_mode(tc->pool) == PM_FAIL) { in thin_status()
4340 DMEMIT("%llu ", mapped * tc->pool->sectors_per_block); in thin_status()
4343 tc->pool->sectors_per_block) - 1); in thin_status()
4369 struct pool *pool = tc->pool; in thin_iterate_devices() local
4375 if (!pool->ti) in thin_iterate_devices()
4378 blocks = pool->ti->len; in thin_iterate_devices()
4379 (void) sector_div(blocks, pool->sectors_per_block); in thin_iterate_devices()
4381 return fn(ti, tc->pool_dev, 0, pool->sectors_per_block * blocks, data); in thin_iterate_devices()
4389 struct pool *pool = tc->pool; in thin_io_hints() local
4391 if (!pool->pf.discard_enabled) in thin_io_hints()
4394 limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT; in thin_io_hints()