Lines Matching refs:tc
226 typedef void (*process_bio_fn)(struct thin_c *tc, struct bio *bio);
227 typedef void (*process_cell_fn)(struct thin_c *tc, struct dm_bio_prison_cell *cell);
382 struct thin_c *tc; member
388 static void begin_discard(struct discard_op *op, struct thin_c *tc, struct bio *parent) in begin_discard() argument
392 op->tc = tc; in begin_discard()
400 struct thin_c *tc = op->tc; in issue_discard() local
401 sector_t s = block_to_sectors(tc->pool, data_b); in issue_discard()
402 sector_t len = block_to_sectors(tc->pool, data_e - data_b); in issue_discard()
404 return __blkdev_issue_discard(tc->pool_dev->bdev, s, len, GFP_NOIO, &op->bio); in issue_discard()
587 struct thin_c *tc; member
605 static void error_thin_bio_list(struct thin_c *tc, struct bio_list *master, in error_thin_bio_list() argument
612 spin_lock_irq(&tc->lock); in error_thin_bio_list()
614 spin_unlock_irq(&tc->lock); in error_thin_bio_list()
619 static void requeue_deferred_cells(struct thin_c *tc) in requeue_deferred_cells() argument
621 struct pool *pool = tc->pool; in requeue_deferred_cells()
627 spin_lock_irq(&tc->lock); in requeue_deferred_cells()
628 list_splice_init(&tc->deferred_cells, &cells); in requeue_deferred_cells()
629 spin_unlock_irq(&tc->lock); in requeue_deferred_cells()
635 static void requeue_io(struct thin_c *tc) in requeue_io() argument
641 spin_lock_irq(&tc->lock); in requeue_io()
642 bio_list_merge_init(&bios, &tc->deferred_bio_list); in requeue_io()
643 bio_list_merge_init(&bios, &tc->retry_on_resume_list); in requeue_io()
644 spin_unlock_irq(&tc->lock); in requeue_io()
647 requeue_deferred_cells(tc); in requeue_io()
652 struct thin_c *tc; in error_retry_list_with_code() local
655 list_for_each_entry_rcu(tc, &pool->active_thins, list) in error_retry_list_with_code()
656 error_thin_bio_list(tc, &tc->retry_on_resume_list, error); in error_retry_list_with_code()
672 static dm_block_t get_bio_block(struct thin_c *tc, struct bio *bio) in get_bio_block() argument
674 struct pool *pool = tc->pool; in get_bio_block()
688 static void get_bio_block_range(struct thin_c *tc, struct bio *bio, in get_bio_block_range() argument
691 struct pool *pool = tc->pool; in get_bio_block_range()
714 static void remap(struct thin_c *tc, struct bio *bio, dm_block_t block) in remap() argument
716 struct pool *pool = tc->pool; in remap()
719 bio_set_dev(bio, tc->pool_dev->bdev); in remap()
730 static void remap_to_origin(struct thin_c *tc, struct bio *bio) in remap_to_origin() argument
732 bio_set_dev(bio, tc->origin_dev->bdev); in remap_to_origin()
735 static int bio_triggers_commit(struct thin_c *tc, struct bio *bio) in bio_triggers_commit() argument
738 dm_thin_changed_this_transaction(tc->td); in bio_triggers_commit()
752 static void issue(struct thin_c *tc, struct bio *bio) in issue() argument
754 struct pool *pool = tc->pool; in issue()
756 if (!bio_triggers_commit(tc, bio)) { in issue()
766 if (dm_thin_aborted_changes(tc->td)) { in issue()
780 static void remap_to_origin_and_issue(struct thin_c *tc, struct bio *bio) in remap_to_origin_and_issue() argument
782 remap_to_origin(tc, bio); in remap_to_origin_and_issue()
783 issue(tc, bio); in remap_to_origin_and_issue()
786 static void remap_and_issue(struct thin_c *tc, struct bio *bio, in remap_and_issue() argument
789 remap(tc, bio, block); in remap_and_issue()
790 issue(tc, bio); in remap_and_issue()
812 struct thin_c *tc; member
829 struct pool *pool = m->tc->pool; in __complete_mapping_preparation()
840 struct pool *pool = m->tc->pool; in complete_mapping_preparation()
880 static void cell_defer_no_holder(struct thin_c *tc, struct dm_bio_prison_cell *cell) in cell_defer_no_holder() argument
882 struct pool *pool = tc->pool; in cell_defer_no_holder()
890 spin_lock_irqsave(&tc->lock, flags); in cell_defer_no_holder()
891 bio_list_merge(&tc->deferred_bio_list, &bios); in cell_defer_no_holder()
892 spin_unlock_irqrestore(&tc->lock, flags); in cell_defer_no_holder()
897 static void thin_defer_bio(struct thin_c *tc, struct bio *bio);
900 struct thin_c *tc; member
915 inc_all_io_entry(info->tc->pool, bio); in __inc_remap_and_issue_cell()
927 static void inc_remap_and_issue_cell(struct thin_c *tc, in inc_remap_and_issue_cell() argument
934 info.tc = tc; in inc_remap_and_issue_cell()
943 cell_visit_release(tc->pool, __inc_remap_and_issue_cell, in inc_remap_and_issue_cell()
947 thin_defer_bio(tc, bio); in inc_remap_and_issue_cell()
950 remap_and_issue(info.tc, bio, block); 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()
960 static void complete_overwrite_bio(struct thin_c *tc, struct bio *bio) in complete_overwrite_bio() argument
962 struct pool *pool = tc->pool; in complete_overwrite_bio()
968 if (!bio_triggers_commit(tc, bio)) { in complete_overwrite_bio()
978 if (dm_thin_aborted_changes(tc->td)) { in complete_overwrite_bio()
994 struct thin_c *tc = m->tc; in process_prepared_mapping() local
995 struct pool *pool = tc->pool; in process_prepared_mapping()
1009 r = dm_thin_insert_block(tc->td, m->virt_begin, m->data_block); in process_prepared_mapping()
1023 inc_remap_and_issue_cell(tc, m->cell, m->data_block); in process_prepared_mapping()
1024 complete_overwrite_bio(tc, bio); in process_prepared_mapping()
1026 inc_all_io_entry(tc->pool, m->cell->holder); in process_prepared_mapping()
1027 remap_and_issue(tc, m->cell->holder, m->data_block); in process_prepared_mapping()
1028 inc_remap_and_issue_cell(tc, m->cell, m->data_block); in process_prepared_mapping()
1040 struct thin_c *tc = m->tc; in free_discard_mapping() local
1043 cell_defer_no_holder(tc, m->cell); in free_discard_mapping()
1044 mempool_free(m, &tc->pool->mapping_pool); in free_discard_mapping()
1062 struct thin_c *tc = m->tc; in process_prepared_discard_no_passdown() local
1064 r = dm_thin_remove_range(tc->td, m->cell->key.block_begin, m->cell->key.block_end); in process_prepared_discard_no_passdown()
1066 metadata_operation_failed(tc->pool, "dm_thin_remove_range", r); in process_prepared_discard_no_passdown()
1071 cell_defer_no_holder(tc, m->cell); in process_prepared_discard_no_passdown()
1072 mempool_free(m, &tc->pool->mapping_pool); in process_prepared_discard_no_passdown()
1086 struct thin_c *tc = m->tc; in passdown_double_checking_shared_status() local
1087 struct pool *pool = tc->pool; in passdown_double_checking_shared_status()
1091 begin_discard(&op, tc, discard_parent); in passdown_double_checking_shared_status()
1129 struct pool *pool = m->tc->pool; in queue_passdown_pt2()
1150 struct thin_c *tc = m->tc; in process_prepared_discard_passdown_pt1() local
1151 struct pool *pool = tc->pool; in process_prepared_discard_passdown_pt1()
1160 r = dm_thin_remove_range(tc->td, m->virt_begin, m->virt_end); in process_prepared_discard_passdown_pt1()
1164 cell_defer_no_holder(tc, m->cell); in process_prepared_discard_passdown_pt1()
1177 cell_defer_no_holder(tc, m->cell); in process_prepared_discard_passdown_pt1()
1190 begin_discard(&op, tc, discard_parent); in process_prepared_discard_passdown_pt1()
1199 struct thin_c *tc = m->tc; in process_prepared_discard_passdown_pt2() local
1200 struct pool *pool = tc->pool; in process_prepared_discard_passdown_pt2()
1214 cell_defer_no_holder(tc, m->cell); in process_prepared_discard_passdown_pt2()
1280 static void ll_zero(struct thin_c *tc, struct dm_thin_new_mapping *m, in ll_zero() argument
1285 to.bdev = tc->pool_dev->bdev; in ll_zero()
1289 dm_kcopyd_zero(tc->pool->copier, 1, &to, 0, copy_complete, m); in ll_zero()
1292 static void remap_and_issue_overwrite(struct thin_c *tc, struct bio *bio, in remap_and_issue_overwrite() argument
1296 struct pool *pool = tc->pool; in remap_and_issue_overwrite()
1303 remap_and_issue(tc, bio, data_begin); in remap_and_issue_overwrite()
1309 static void schedule_copy(struct thin_c *tc, dm_block_t virt_block, in schedule_copy() argument
1315 struct pool *pool = tc->pool; in schedule_copy()
1318 m->tc = tc; in schedule_copy()
1341 remap_and_issue_overwrite(tc, bio, data_dest, m); in schedule_copy()
1349 to.bdev = tc->pool_dev->bdev; in schedule_copy()
1361 ll_zero(tc, m, in schedule_copy()
1370 static void schedule_internal_copy(struct thin_c *tc, dm_block_t virt_block, in schedule_internal_copy() argument
1374 schedule_copy(tc, virt_block, tc->pool_dev, in schedule_internal_copy()
1376 tc->pool->sectors_per_block); in schedule_internal_copy()
1379 static void schedule_zero(struct thin_c *tc, dm_block_t virt_block, in schedule_zero() argument
1383 struct pool *pool = tc->pool; in schedule_zero()
1387 m->tc = tc; in schedule_zero()
1400 remap_and_issue_overwrite(tc, bio, data_block, m); in schedule_zero()
1402 ll_zero(tc, m, data_block * pool->sectors_per_block, in schedule_zero()
1409 static void schedule_external_copy(struct thin_c *tc, dm_block_t virt_block, in schedule_external_copy() argument
1413 struct pool *pool = tc->pool; in schedule_external_copy()
1417 if (virt_block_end <= tc->origin_size) { in schedule_external_copy()
1418 schedule_copy(tc, virt_block, tc->origin_dev, in schedule_external_copy()
1422 } else if (virt_block_begin < tc->origin_size) { in schedule_external_copy()
1423 schedule_copy(tc, virt_block, tc->origin_dev, in schedule_external_copy()
1425 tc->origin_size - virt_block_begin); in schedule_external_copy()
1428 schedule_zero(tc, virt_block, data_dest, cell, bio); in schedule_external_copy()
1515 static int alloc_data_block(struct thin_c *tc, dm_block_t *result) in alloc_data_block() argument
1519 struct pool *pool = tc->pool; in alloc_data_block()
1585 struct thin_c *tc = h->tc; in retry_on_resume() local
1587 spin_lock_irq(&tc->lock); in retry_on_resume()
1588 bio_list_add(&tc->retry_on_resume_list, bio); in retry_on_resume()
1589 spin_unlock_irq(&tc->lock); in retry_on_resume()
1646 static void process_discard_cell_no_passdown(struct thin_c *tc, in process_discard_cell_no_passdown() argument
1649 struct pool *pool = tc->pool; in process_discard_cell_no_passdown()
1656 m->tc = tc; in process_discard_cell_no_passdown()
1666 static void break_up_discard_bio(struct thin_c *tc, dm_block_t begin, dm_block_t end, in break_up_discard_bio() argument
1669 struct pool *pool = tc->pool; in break_up_discard_bio()
1680 r = dm_thin_find_mapped_range(tc->td, begin, end, &virt_begin, &virt_end, in break_up_discard_bio()
1705 (void) build_key(tc->td, PHYSICAL, data_begin, data_begin + len, &data_key); in break_up_discard_bio()
1706 if (bio_detain(tc->pool, &data_key, NULL, &data_cell)) { in break_up_discard_bio()
1717 m->tc = tc; in break_up_discard_bio()
1745 static void process_discard_cell_passdown(struct thin_c *tc, struct dm_bio_prison_cell *virt_cell) in process_discard_cell_passdown() argument
1756 break_up_discard_bio(tc, virt_cell->key.block_begin, virt_cell->key.block_end, bio); in process_discard_cell_passdown()
1766 static void process_discard_bio(struct thin_c *tc, struct bio *bio) in process_discard_bio() argument
1772 get_bio_block_range(tc, bio, &begin, &end); in process_discard_bio()
1781 if (unlikely(!build_key(tc->td, VIRTUAL, begin, end, &virt_key))) { in process_discard_bio()
1787 if (bio_detain(tc->pool, &virt_key, bio, &virt_cell)) { in process_discard_bio()
1798 tc->pool->process_discard_cell(tc, virt_cell); in process_discard_bio()
1801 static void break_sharing(struct thin_c *tc, struct bio *bio, dm_block_t block, in break_sharing() argument
1808 struct pool *pool = tc->pool; in break_sharing()
1810 r = alloc_data_block(tc, &data_block); in break_sharing()
1813 schedule_internal_copy(tc, block, lookup_result->block, in break_sharing()
1842 h->shared_read_entry = dm_deferred_entry_inc(info->tc->pool->shared_read_ds); in __remap_and_issue_shared_cell()
1843 inc_all_io_entry(info->tc->pool, bio); in __remap_and_issue_shared_cell()
1849 static void remap_and_issue_shared_cell(struct thin_c *tc, in remap_and_issue_shared_cell() argument
1856 info.tc = tc; in remap_and_issue_shared_cell()
1860 cell_visit_release(tc->pool, __remap_and_issue_shared_cell, in remap_and_issue_shared_cell()
1864 thin_defer_bio(tc, bio); in remap_and_issue_shared_cell()
1867 remap_and_issue(tc, bio, block); in remap_and_issue_shared_cell()
1870 static void process_shared_bio(struct thin_c *tc, struct bio *bio, in process_shared_bio() argument
1876 struct pool *pool = tc->pool; in process_shared_bio()
1883 build_data_key(tc->td, lookup_result->block, &key); in process_shared_bio()
1885 cell_defer_no_holder(tc, virt_cell); in process_shared_bio()
1890 break_sharing(tc, bio, block, &key, lookup_result, data_cell); in process_shared_bio()
1891 cell_defer_no_holder(tc, virt_cell); in process_shared_bio()
1897 remap_and_issue(tc, bio, lookup_result->block); in process_shared_bio()
1899 remap_and_issue_shared_cell(tc, data_cell, lookup_result->block); in process_shared_bio()
1900 remap_and_issue_shared_cell(tc, virt_cell, lookup_result->block); in process_shared_bio()
1904 static void provision_block(struct thin_c *tc, struct bio *bio, dm_block_t block, in provision_block() argument
1909 struct pool *pool = tc->pool; in provision_block()
1916 cell_defer_no_holder(tc, cell); in provision_block()
1918 remap_and_issue(tc, bio, 0); in provision_block()
1927 cell_defer_no_holder(tc, cell); in provision_block()
1932 r = alloc_data_block(tc, &data_block); in provision_block()
1935 if (tc->origin_dev) in provision_block()
1936 schedule_external_copy(tc, block, data_block, cell, bio); in provision_block()
1938 schedule_zero(tc, block, data_block, cell, bio); in provision_block()
1953 static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell) in process_cell() argument
1956 struct pool *pool = tc->pool; in process_cell()
1958 dm_block_t block = get_bio_block(tc, bio); in process_cell()
1961 if (tc->requeue_mode) { in process_cell()
1966 r = dm_thin_find_block(tc->td, block, 1, &lookup_result); in process_cell()
1970 process_shared_bio(tc, bio, block, &lookup_result, cell); in process_cell()
1973 remap_and_issue(tc, bio, lookup_result.block); in process_cell()
1974 inc_remap_and_issue_cell(tc, cell, lookup_result.block); in process_cell()
1979 if (bio_data_dir(bio) == READ && tc->origin_dev) { in process_cell()
1981 cell_defer_no_holder(tc, cell); in process_cell()
1983 if (bio_end_sector(bio) <= tc->origin_size) in process_cell()
1984 remap_to_origin_and_issue(tc, bio); in process_cell()
1986 else if (bio->bi_iter.bi_sector < tc->origin_size) { in process_cell()
1988 bio->bi_iter.bi_size = (tc->origin_size - bio->bi_iter.bi_sector) << SECTOR_SHIFT; in process_cell()
1989 remap_to_origin_and_issue(tc, bio); in process_cell()
1996 provision_block(tc, bio, block, cell); in process_cell()
2002 cell_defer_no_holder(tc, cell); in process_cell()
2008 static void process_bio(struct thin_c *tc, struct bio *bio) in process_bio() argument
2010 struct pool *pool = tc->pool; in process_bio()
2011 dm_block_t block = get_bio_block(tc, bio); in process_bio()
2019 build_virtual_key(tc->td, block, &key); in process_bio()
2023 process_cell(tc, cell); in process_bio()
2026 static void __process_bio_read_only(struct thin_c *tc, struct bio *bio, in __process_bio_read_only() argument
2031 dm_block_t block = get_bio_block(tc, bio); in __process_bio_read_only()
2034 r = dm_thin_find_block(tc->td, block, 1, &lookup_result); in __process_bio_read_only()
2038 handle_unserviceable_bio(tc->pool, bio); in __process_bio_read_only()
2040 cell_defer_no_holder(tc, cell); in __process_bio_read_only()
2042 inc_all_io_entry(tc->pool, bio); in __process_bio_read_only()
2043 remap_and_issue(tc, bio, lookup_result.block); in __process_bio_read_only()
2045 inc_remap_and_issue_cell(tc, cell, lookup_result.block); in __process_bio_read_only()
2051 cell_defer_no_holder(tc, cell); in __process_bio_read_only()
2053 handle_unserviceable_bio(tc->pool, bio); in __process_bio_read_only()
2057 if (tc->origin_dev) { in __process_bio_read_only()
2058 inc_all_io_entry(tc->pool, bio); in __process_bio_read_only()
2059 remap_to_origin_and_issue(tc, bio); in __process_bio_read_only()
2071 cell_defer_no_holder(tc, cell); in __process_bio_read_only()
2077 static void process_bio_read_only(struct thin_c *tc, struct bio *bio) in process_bio_read_only() argument
2079 __process_bio_read_only(tc, bio, NULL); in process_bio_read_only()
2082 static void process_cell_read_only(struct thin_c *tc, struct dm_bio_prison_cell *cell) in process_cell_read_only() argument
2084 __process_bio_read_only(tc, cell->holder, cell); in process_cell_read_only()
2087 static void process_bio_success(struct thin_c *tc, struct bio *bio) in process_bio_success() argument
2092 static void process_bio_fail(struct thin_c *tc, struct bio *bio) in process_bio_fail() argument
2097 static void process_cell_success(struct thin_c *tc, struct dm_bio_prison_cell *cell) in process_cell_success() argument
2099 cell_success(tc->pool, cell); in process_cell_success()
2102 static void process_cell_fail(struct thin_c *tc, struct dm_bio_prison_cell *cell) in process_cell_fail() argument
2104 cell_error(tc->pool, cell); in process_cell_fail()
2120 static void __thin_bio_rb_add(struct thin_c *tc, struct bio *bio) in __thin_bio_rb_add() argument
2126 rbp = &tc->sort_bio_list.rb_node; in __thin_bio_rb_add()
2140 rb_insert_color(&pbd->rb_node, &tc->sort_bio_list); in __thin_bio_rb_add()
2143 static void __extract_sorted_bios(struct thin_c *tc) in __extract_sorted_bios() argument
2149 for (node = rb_first(&tc->sort_bio_list); node; node = rb_next(node)) { in __extract_sorted_bios()
2153 bio_list_add(&tc->deferred_bio_list, bio); in __extract_sorted_bios()
2154 rb_erase(&pbd->rb_node, &tc->sort_bio_list); in __extract_sorted_bios()
2157 WARN_ON(!RB_EMPTY_ROOT(&tc->sort_bio_list)); in __extract_sorted_bios()
2160 static void __sort_thin_deferred_bios(struct thin_c *tc) in __sort_thin_deferred_bios() argument
2166 bio_list_merge(&bios, &tc->deferred_bio_list); in __sort_thin_deferred_bios()
2167 bio_list_init(&tc->deferred_bio_list); in __sort_thin_deferred_bios()
2171 __thin_bio_rb_add(tc, bio); in __sort_thin_deferred_bios()
2178 __extract_sorted_bios(tc); in __sort_thin_deferred_bios()
2181 static void process_thin_deferred_bios(struct thin_c *tc) in process_thin_deferred_bios() argument
2183 struct pool *pool = tc->pool; in process_thin_deferred_bios()
2189 if (tc->requeue_mode) { in process_thin_deferred_bios()
2190 error_thin_bio_list(tc, &tc->deferred_bio_list, in process_thin_deferred_bios()
2197 spin_lock_irq(&tc->lock); in process_thin_deferred_bios()
2199 if (bio_list_empty(&tc->deferred_bio_list)) { in process_thin_deferred_bios()
2200 spin_unlock_irq(&tc->lock); in process_thin_deferred_bios()
2204 __sort_thin_deferred_bios(tc); in process_thin_deferred_bios()
2206 bio_list_merge(&bios, &tc->deferred_bio_list); in process_thin_deferred_bios()
2207 bio_list_init(&tc->deferred_bio_list); in process_thin_deferred_bios()
2209 spin_unlock_irq(&tc->lock); in process_thin_deferred_bios()
2219 spin_lock_irq(&tc->lock); in process_thin_deferred_bios()
2220 bio_list_add(&tc->deferred_bio_list, bio); in process_thin_deferred_bios()
2221 bio_list_merge(&tc->deferred_bio_list, &bios); in process_thin_deferred_bios()
2222 spin_unlock_irq(&tc->lock); in process_thin_deferred_bios()
2227 pool->process_discard(tc, bio); in process_thin_deferred_bios()
2229 pool->process_bio(tc, bio); in process_thin_deferred_bios()
2275 static void process_thin_deferred_cells(struct thin_c *tc) in process_thin_deferred_cells() argument
2277 struct pool *pool = tc->pool; in process_thin_deferred_cells()
2284 spin_lock_irq(&tc->lock); in process_thin_deferred_cells()
2285 list_splice_init(&tc->deferred_cells, &cells); in process_thin_deferred_cells()
2286 spin_unlock_irq(&tc->lock); in process_thin_deferred_cells()
2292 count = sort_cells(tc->pool, &cells); in process_thin_deferred_cells()
2307 spin_lock_irq(&tc->lock); in process_thin_deferred_cells()
2308 list_splice(&cells, &tc->deferred_cells); in process_thin_deferred_cells()
2309 spin_unlock_irq(&tc->lock); in process_thin_deferred_cells()
2314 pool->process_discard_cell(tc, cell); in process_thin_deferred_cells()
2316 pool->process_cell(tc, cell); in process_thin_deferred_cells()
2322 static void thin_get(struct thin_c *tc);
2323 static void thin_put(struct thin_c *tc);
2332 struct thin_c *tc = NULL; in get_first_thin() local
2336 tc = list_entry_rcu(pool->active_thins.next, struct thin_c, list); in get_first_thin()
2337 thin_get(tc); in get_first_thin()
2341 return tc; in get_first_thin()
2344 static struct thin_c *get_next_thin(struct pool *pool, struct thin_c *tc) in get_next_thin() argument
2346 struct thin_c *old_tc = tc; in get_next_thin()
2349 list_for_each_entry_continue_rcu(tc, &pool->active_thins, list) { in get_next_thin()
2350 thin_get(tc); in get_next_thin()
2353 return tc; in get_next_thin()
2365 struct thin_c *tc; in process_deferred_bios() local
2367 tc = get_first_thin(pool); in process_deferred_bios()
2368 while (tc) { in process_deferred_bios()
2369 process_thin_deferred_cells(tc); in process_deferred_bios()
2370 process_thin_deferred_bios(tc); in process_deferred_bios()
2371 tc = get_next_thin(pool, tc); in process_deferred_bios()
2493 struct thin_c *tc; member
2505 w->tc->requeue_mode = true; in do_noflush_start()
2506 requeue_io(w->tc); in do_noflush_start()
2514 w->tc->requeue_mode = false; in do_noflush_stop()
2518 static void noflush_work(struct thin_c *tc, void (*fn)(struct work_struct *)) in noflush_work() argument
2522 w.tc = tc; in noflush_work()
2523 pool_work_wait(&w.pw, tc->pool, fn); in noflush_work()
2674 static void thin_defer_bio(struct thin_c *tc, struct bio *bio) in thin_defer_bio() argument
2676 struct pool *pool = tc->pool; in thin_defer_bio()
2678 spin_lock_irq(&tc->lock); in thin_defer_bio()
2679 bio_list_add(&tc->deferred_bio_list, bio); in thin_defer_bio()
2680 spin_unlock_irq(&tc->lock); in thin_defer_bio()
2685 static void thin_defer_bio_with_throttle(struct thin_c *tc, struct bio *bio) in thin_defer_bio_with_throttle() argument
2687 struct pool *pool = tc->pool; in thin_defer_bio_with_throttle()
2690 thin_defer_bio(tc, bio); in thin_defer_bio_with_throttle()
2694 static void thin_defer_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell) in thin_defer_cell() argument
2696 struct pool *pool = tc->pool; in thin_defer_cell()
2699 spin_lock_irq(&tc->lock); in thin_defer_cell()
2700 list_add_tail(&cell->user_list, &tc->deferred_cells); in thin_defer_cell()
2701 spin_unlock_irq(&tc->lock); in thin_defer_cell()
2707 static void thin_hook_bio(struct thin_c *tc, struct bio *bio) in thin_hook_bio() argument
2711 h->tc = tc; in thin_hook_bio()
2724 struct thin_c *tc = ti->private; in thin_bio_map() local
2725 dm_block_t block = get_bio_block(tc, bio); in thin_bio_map()
2726 struct dm_thin_device *td = tc->td; in thin_bio_map()
2731 thin_hook_bio(tc, bio); in thin_bio_map()
2733 if (tc->requeue_mode) { in thin_bio_map()
2739 if (get_pool_mode(tc->pool) == PM_FAIL) { in thin_bio_map()
2745 thin_defer_bio_with_throttle(tc, bio); in thin_bio_map()
2753 build_virtual_key(tc->td, block, &key); in thin_bio_map()
2754 if (bio_detain(tc->pool, &key, bio, &virt_cell)) in thin_bio_map()
2779 thin_defer_cell(tc, virt_cell); in thin_bio_map()
2783 build_data_key(tc->td, result.block, &key); in thin_bio_map()
2784 if (bio_detain(tc->pool, &key, bio, &data_cell)) { in thin_bio_map()
2785 cell_defer_no_holder(tc, virt_cell); in thin_bio_map()
2789 inc_all_io_entry(tc->pool, bio); in thin_bio_map()
2790 cell_defer_no_holder(tc, data_cell); in thin_bio_map()
2791 cell_defer_no_holder(tc, virt_cell); in thin_bio_map()
2793 remap(tc, bio, result.block); in thin_bio_map()
2798 thin_defer_cell(tc, virt_cell); in thin_bio_map()
2808 cell_defer_no_holder(tc, virt_cell); in thin_bio_map()
2815 struct thin_c *tc; in requeue_bios() local
2818 list_for_each_entry_rcu(tc, &pool->active_thins, list) { in requeue_bios()
2819 spin_lock_irq(&tc->lock); in requeue_bios()
2820 bio_list_merge(&tc->deferred_bio_list, &tc->retry_on_resume_list); in requeue_bios()
2821 bio_list_init(&tc->retry_on_resume_list); in requeue_bios()
2822 spin_unlock_irq(&tc->lock); in requeue_bios()
3603 struct thin_c *tc; in pool_suspend_active_thins() local
3606 tc = get_first_thin(pool); in pool_suspend_active_thins()
3607 while (tc) { in pool_suspend_active_thins()
3608 dm_internal_suspend_noflush(tc->thin_md); in pool_suspend_active_thins()
3609 tc = get_next_thin(pool, tc); in pool_suspend_active_thins()
3615 struct thin_c *tc; in pool_resume_active_thins() local
3618 tc = get_first_thin(pool); in pool_resume_active_thins()
3619 while (tc) { in pool_resume_active_thins()
3620 dm_internal_resume(tc->thin_md); in pool_resume_active_thins()
3621 tc = get_next_thin(pool, tc); in pool_resume_active_thins()
4136 static void thin_get(struct thin_c *tc) in thin_get() argument
4138 refcount_inc(&tc->refcount); in thin_get()
4141 static void thin_put(struct thin_c *tc) in thin_put() argument
4143 if (refcount_dec_and_test(&tc->refcount)) in thin_put()
4144 complete(&tc->can_destroy); in thin_put()
4149 struct thin_c *tc = ti->private; in thin_dtr() local
4151 spin_lock_irq(&tc->pool->lock); in thin_dtr()
4152 list_del_rcu(&tc->list); in thin_dtr()
4153 spin_unlock_irq(&tc->pool->lock); in thin_dtr()
4156 thin_put(tc); in thin_dtr()
4157 wait_for_completion(&tc->can_destroy); in thin_dtr()
4161 __pool_dec(tc->pool); in thin_dtr()
4162 dm_pool_close_thin_device(tc->td); in thin_dtr()
4163 dm_put_device(ti, tc->pool_dev); in thin_dtr()
4164 if (tc->origin_dev) in thin_dtr()
4165 dm_put_device(ti, tc->origin_dev); in thin_dtr()
4166 kfree(tc); in thin_dtr()
4186 struct thin_c *tc; in thin_ctr() local
4198 tc = ti->private = kzalloc(sizeof(*tc), GFP_KERNEL); in thin_ctr()
4199 if (!tc) { in thin_ctr()
4204 tc->thin_md = dm_table_get_md(ti->table); in thin_ctr()
4205 spin_lock_init(&tc->lock); in thin_ctr()
4206 INIT_LIST_HEAD(&tc->deferred_cells); in thin_ctr()
4207 bio_list_init(&tc->deferred_bio_list); in thin_ctr()
4208 bio_list_init(&tc->retry_on_resume_list); in thin_ctr()
4209 tc->sort_bio_list = RB_ROOT; in thin_ctr()
4223 tc->origin_dev = origin_dev; in thin_ctr()
4231 tc->pool_dev = pool_dev; in thin_ctr()
4233 if (read_dev_id(argv[1], (unsigned long long *)&tc->dev_id, 0)) { in thin_ctr()
4239 pool_md = dm_get_md(tc->pool_dev->bdev->bd_dev); in thin_ctr()
4246 tc->pool = __pool_table_lookup(pool_md); in thin_ctr()
4247 if (!tc->pool) { in thin_ctr()
4252 __pool_inc(tc->pool); in thin_ctr()
4254 if (get_pool_mode(tc->pool) == PM_FAIL) { in thin_ctr()
4260 r = dm_pool_open_thin_device(tc->pool->pmd, tc->dev_id, &tc->td); in thin_ctr()
4266 r = dm_set_target_max_io_len(ti, tc->pool->sectors_per_block); in thin_ctr()
4277 if (tc->pool->pf.discard_enabled) { in thin_ctr()
4285 spin_lock_irq(&tc->pool->lock); in thin_ctr()
4286 if (tc->pool->suspended) { in thin_ctr()
4287 spin_unlock_irq(&tc->pool->lock); in thin_ctr()
4293 refcount_set(&tc->refcount, 1); in thin_ctr()
4294 init_completion(&tc->can_destroy); in thin_ctr()
4295 list_add_tail_rcu(&tc->list, &tc->pool->active_thins); in thin_ctr()
4296 spin_unlock_irq(&tc->pool->lock); in thin_ctr()
4310 dm_pool_close_thin_device(tc->td); in thin_ctr()
4312 __pool_dec(tc->pool); in thin_ctr()
4316 dm_put_device(ti, tc->pool_dev); in thin_ctr()
4318 if (tc->origin_dev) in thin_ctr()
4319 dm_put_device(ti, tc->origin_dev); in thin_ctr()
4321 kfree(tc); in thin_ctr()
4342 struct pool *pool = h->tc->pool; in thin_endio()
4369 cell_defer_no_holder(h->tc, h->cell); in thin_endio()
4376 struct thin_c *tc = ti->private; in thin_presuspend() local
4379 noflush_work(tc, do_noflush_start); in thin_presuspend()
4384 struct thin_c *tc = ti->private; in thin_postsuspend() local
4390 noflush_work(tc, do_noflush_stop); in thin_postsuspend()
4395 struct thin_c *tc = ti->private; in thin_preresume() local
4397 if (tc->origin_dev) in thin_preresume()
4398 tc->origin_size = get_dev_size(tc->origin_dev->bdev); in thin_preresume()
4413 struct thin_c *tc = ti->private; in thin_status() local
4415 if (get_pool_mode(tc->pool) == PM_FAIL) { in thin_status()
4420 if (!tc->td) in thin_status()
4425 r = dm_thin_get_mapped_count(tc->td, &mapped); in thin_status()
4431 r = dm_thin_get_highest_mapped_block(tc->td, &highest); in thin_status()
4437 DMEMIT("%llu ", mapped * tc->pool->sectors_per_block); in thin_status()
4440 tc->pool->sectors_per_block) - 1); in thin_status()
4447 format_dev_t(buf, tc->pool_dev->bdev->bd_dev), in thin_status()
4448 (unsigned long) tc->dev_id); in thin_status()
4449 if (tc->origin_dev) in thin_status()
4450 DMEMIT(" %s", format_dev_t(buf, tc->origin_dev->bdev->bd_dev)); in thin_status()
4469 struct thin_c *tc = ti->private; in thin_iterate_devices() local
4470 struct pool *pool = tc->pool; in thin_iterate_devices()
4482 return fn(ti, tc->pool_dev, 0, pool->sectors_per_block * blocks, data); in thin_iterate_devices()
4489 struct thin_c *tc = ti->private; in thin_io_hints() local
4490 struct pool *pool = tc->pool; in thin_io_hints()