Lines Matching refs:rs
259 static void rs_config_backup(struct raid_set *rs, struct rs_layout *l) in rs_config_backup() argument
261 struct mddev *mddev = &rs->md; in rs_config_backup()
268 static void rs_config_restore(struct raid_set *rs, struct rs_layout *l) in rs_config_restore() argument
270 struct mddev *mddev = &rs->md; in rs_config_restore()
399 static bool rs_is_raid0(struct raid_set *rs) in rs_is_raid0() argument
401 return !rs->md.level; in rs_is_raid0()
405 static bool rs_is_raid1(struct raid_set *rs) in rs_is_raid1() argument
407 return rs->md.level == 1; in rs_is_raid1()
411 static bool rs_is_raid10(struct raid_set *rs) in rs_is_raid10() argument
413 return rs->md.level == 10; in rs_is_raid10()
417 static bool rs_is_raid6(struct raid_set *rs) in rs_is_raid6() argument
419 return rs->md.level == 6; in rs_is_raid6()
423 static bool rs_is_raid456(struct raid_set *rs) in rs_is_raid456() argument
425 return __within_range(rs->md.level, 4, 6); in rs_is_raid456()
430 static bool rs_is_reshapable(struct raid_set *rs) in rs_is_reshapable() argument
432 return rs_is_raid456(rs) || in rs_is_reshapable()
433 (rs_is_raid10(rs) && !__is_raid10_far(rs->md.new_layout)); in rs_is_reshapable()
437 static bool rs_is_recovering(struct raid_set *rs) in rs_is_recovering() argument
439 return rs->md.recovery_cp < rs->md.dev_sectors; in rs_is_recovering()
443 static bool rs_is_reshaping(struct raid_set *rs) in rs_is_reshaping() argument
445 return rs->md.reshape_position != MaxSector; in rs_is_reshaping()
490 static unsigned long __valid_flags(struct raid_set *rs) in __valid_flags() argument
492 if (rt_is_raid0(rs->raid_type)) in __valid_flags()
494 else if (rt_is_raid1(rs->raid_type)) in __valid_flags()
496 else if (rt_is_raid10(rs->raid_type)) in __valid_flags()
498 else if (rt_is_raid45(rs->raid_type)) in __valid_flags()
500 else if (rt_is_raid6(rs->raid_type)) in __valid_flags()
511 static int rs_check_for_valid_flags(struct raid_set *rs) in rs_check_for_valid_flags() argument
513 if (rs->ctr_flags & ~__valid_flags(rs)) { in rs_check_for_valid_flags()
514 rs->ti->error = "Invalid flags combination"; in rs_check_for_valid_flags()
598 static int raid10_format_to_md_layout(struct raid_set *rs, in raid10_format_to_md_layout() argument
619 if (!test_bit(__CTR_FLAG_RAID10_USE_NEAR_SETS, &rs->ctr_flags)) in raid10_format_to_md_layout()
624 if (!test_bit(__CTR_FLAG_RAID10_USE_NEAR_SETS, &rs->ctr_flags)) in raid10_format_to_md_layout()
682 static void rs_set_rdev_sectors(struct raid_set *rs) in rs_set_rdev_sectors() argument
684 struct mddev *mddev = &rs->md; in rs_set_rdev_sectors()
699 static void rs_set_capacity(struct raid_set *rs) in rs_set_capacity() argument
701 struct gendisk *gendisk = dm_disk(dm_table_get_md(rs->ti->table)); in rs_set_capacity()
703 set_capacity(gendisk, rs->md.array_sectors); in rs_set_capacity()
711 static void rs_set_cur(struct raid_set *rs) in rs_set_cur() argument
713 struct mddev *mddev = &rs->md; in rs_set_cur()
724 static void rs_set_new(struct raid_set *rs) in rs_set_new() argument
726 struct mddev *mddev = &rs->md; in rs_set_new()
731 mddev->raid_disks = rs->raid_disks; in rs_set_new()
739 struct raid_set *rs; in raid_set_alloc() local
746 rs = kzalloc(struct_size(rs, dev, raid_devs), GFP_KERNEL); in raid_set_alloc()
747 if (!rs) { in raid_set_alloc()
752 mddev_init(&rs->md); in raid_set_alloc()
754 rs->raid_disks = raid_devs; in raid_set_alloc()
755 rs->delta_disks = 0; in raid_set_alloc()
757 rs->ti = ti; in raid_set_alloc()
758 rs->raid_type = raid_type; in raid_set_alloc()
759 rs->stripe_cache_entries = 256; in raid_set_alloc()
760 rs->md.raid_disks = raid_devs; in raid_set_alloc()
761 rs->md.level = raid_type->level; in raid_set_alloc()
762 rs->md.new_level = rs->md.level; in raid_set_alloc()
763 rs->md.layout = raid_type->algorithm; in raid_set_alloc()
764 rs->md.new_layout = rs->md.layout; in raid_set_alloc()
765 rs->md.delta_disks = 0; in raid_set_alloc()
766 rs->md.recovery_cp = MaxSector; in raid_set_alloc()
769 md_rdev_init(&rs->dev[i].rdev); in raid_set_alloc()
780 return rs; in raid_set_alloc()
784 static void raid_set_free(struct raid_set *rs) in raid_set_free() argument
788 if (rs->journal_dev.dev) { in raid_set_free()
789 md_rdev_clear(&rs->journal_dev.rdev); in raid_set_free()
790 dm_put_device(rs->ti, rs->journal_dev.dev); in raid_set_free()
793 for (i = 0; i < rs->raid_disks; i++) { in raid_set_free()
794 if (rs->dev[i].meta_dev) in raid_set_free()
795 dm_put_device(rs->ti, rs->dev[i].meta_dev); in raid_set_free()
796 md_rdev_clear(&rs->dev[i].rdev); in raid_set_free()
797 if (rs->dev[i].data_dev) in raid_set_free()
798 dm_put_device(rs->ti, rs->dev[i].data_dev); in raid_set_free()
801 kfree(rs); in raid_set_free()
820 static int parse_dev_params(struct raid_set *rs, struct dm_arg_set *as) in parse_dev_params() argument
833 for (i = 0; i < rs->raid_disks; i++) { in parse_dev_params()
834 rs->dev[i].rdev.raid_disk = i; in parse_dev_params()
836 rs->dev[i].meta_dev = NULL; in parse_dev_params()
837 rs->dev[i].data_dev = NULL; in parse_dev_params()
843 rs->dev[i].rdev.data_offset = 0; in parse_dev_params()
844 rs->dev[i].rdev.new_data_offset = 0; in parse_dev_params()
845 rs->dev[i].rdev.mddev = &rs->md; in parse_dev_params()
852 r = dm_get_device(rs->ti, arg, dm_table_get_mode(rs->ti->table), in parse_dev_params()
853 &rs->dev[i].meta_dev); in parse_dev_params()
855 rs->ti->error = "RAID metadata device lookup failure"; in parse_dev_params()
859 rs->dev[i].rdev.sb_page = alloc_page(GFP_KERNEL); in parse_dev_params()
860 if (!rs->dev[i].rdev.sb_page) { in parse_dev_params()
861 rs->ti->error = "Failed to allocate superblock page"; in parse_dev_params()
871 if (!test_bit(In_sync, &rs->dev[i].rdev.flags) && in parse_dev_params()
872 (!rs->dev[i].rdev.recovery_offset)) { in parse_dev_params()
873 rs->ti->error = "Drive designated for rebuild not specified"; in parse_dev_params()
877 if (rs->dev[i].meta_dev) { in parse_dev_params()
878 rs->ti->error = "No data device supplied with metadata device"; in parse_dev_params()
885 r = dm_get_device(rs->ti, arg, dm_table_get_mode(rs->ti->table), in parse_dev_params()
886 &rs->dev[i].data_dev); in parse_dev_params()
888 rs->ti->error = "RAID device lookup failure"; in parse_dev_params()
892 if (rs->dev[i].meta_dev) { in parse_dev_params()
894 rs->dev[i].rdev.meta_bdev = rs->dev[i].meta_dev->bdev; in parse_dev_params()
896 rs->dev[i].rdev.bdev = rs->dev[i].data_dev->bdev; in parse_dev_params()
897 list_add_tail(&rs->dev[i].rdev.same_set, &rs->md.disks); in parse_dev_params()
898 if (!test_bit(In_sync, &rs->dev[i].rdev.flags)) in parse_dev_params()
902 if (rs->journal_dev.dev) in parse_dev_params()
903 list_add_tail(&rs->journal_dev.rdev.same_set, &rs->md.disks); in parse_dev_params()
906 rs->md.external = 0; in parse_dev_params()
907 rs->md.persistent = 1; in parse_dev_params()
908 rs->md.major_version = 2; in parse_dev_params()
909 } else if (rebuild && !rs->md.recovery_cp) { in parse_dev_params()
921 rs->ti->error = "Unable to rebuild drive while array is not in-sync"; in parse_dev_params()
938 static int validate_region_size(struct raid_set *rs, unsigned long region_size) in validate_region_size() argument
940 unsigned long min_region_size = rs->ti->len / (1 << 21); in validate_region_size()
942 if (rs_is_raid0(rs)) in validate_region_size()
962 if (region_size > rs->ti->len) { in validate_region_size()
963 rs->ti->error = "Supplied region size is too large"; in validate_region_size()
970 rs->ti->error = "Supplied region size is too small"; in validate_region_size()
975 rs->ti->error = "Region size is not a power of 2"; in validate_region_size()
979 if (region_size < rs->md.chunk_sectors) { in validate_region_size()
980 rs->ti->error = "Region size is smaller than the chunk size"; in validate_region_size()
988 rs->md.bitmap_info.chunksize = to_bytes(region_size); in validate_region_size()
1002 static int validate_raid_redundancy(struct raid_set *rs) in validate_raid_redundancy() argument
1008 for (i = 0; i < rs->md.raid_disks; i++) in validate_raid_redundancy()
1009 if (!test_bit(In_sync, &rs->dev[i].rdev.flags) || in validate_raid_redundancy()
1010 !rs->dev[i].rdev.sb_page) in validate_raid_redundancy()
1013 switch (rs->md.level) { in validate_raid_redundancy()
1017 if (rebuild_cnt >= rs->md.raid_disks) in validate_raid_redundancy()
1023 if (rebuild_cnt > rs->raid_type->parity_devs) in validate_raid_redundancy()
1027 copies = raid10_md_layout_to_copies(rs->md.new_layout); in validate_raid_redundancy()
1050 if (__is_raid10_near(rs->md.new_layout)) { in validate_raid_redundancy()
1051 for (i = 0; i < rs->md.raid_disks; i++) { in validate_raid_redundancy()
1054 if ((!rs->dev[i].rdev.sb_page || in validate_raid_redundancy()
1055 !test_bit(In_sync, &rs->dev[i].rdev.flags)) && in validate_raid_redundancy()
1074 group_size = (rs->md.raid_disks / copies); in validate_raid_redundancy()
1075 last_group_start = (rs->md.raid_disks / group_size) - 1; in validate_raid_redundancy()
1077 for (i = 0; i < rs->md.raid_disks; i++) { in validate_raid_redundancy()
1080 if ((!rs->dev[i].rdev.sb_page || in validate_raid_redundancy()
1081 !test_bit(In_sync, &rs->dev[i].rdev.flags)) && in validate_raid_redundancy()
1122 static int parse_raid_params(struct raid_set *rs, struct dm_arg_set *as, in parse_raid_params() argument
1132 struct raid_type *rt = rs->raid_type; in parse_raid_params()
1138 rs->ti->error = "Bad numerical argument given for chunk_size"; in parse_raid_params()
1151 rs->ti->error = "Chunk size must be a power of 2"; in parse_raid_params()
1154 rs->ti->error = "Chunk size value is too small"; in parse_raid_params()
1158 rs->md.new_chunk_sectors = rs->md.chunk_sectors = value; in parse_raid_params()
1177 for (i = 0; i < rs->raid_disks; i++) { in parse_raid_params()
1178 set_bit(In_sync, &rs->dev[i].rdev.flags); in parse_raid_params()
1179 rs->dev[i].rdev.recovery_offset = MaxSector; in parse_raid_params()
1188 rs->ti->error = "Not enough raid parameters given"; in parse_raid_params()
1193 if (test_and_set_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags)) { in parse_raid_params()
1194 rs->ti->error = "Only one 'nosync' argument allowed"; in parse_raid_params()
1200 if (test_and_set_bit(__CTR_FLAG_SYNC, &rs->ctr_flags)) { in parse_raid_params()
1201 rs->ti->error = "Only one 'sync' argument allowed"; in parse_raid_params()
1207 if (test_and_set_bit(__CTR_FLAG_RAID10_USE_NEAR_SETS, &rs->ctr_flags)) { in parse_raid_params()
1208 rs->ti->error = "Only one 'raid10_use_new_sets' argument allowed"; in parse_raid_params()
1217 rs->ti->error = "Wrong number of raid parameters given"; in parse_raid_params()
1226 if (test_and_set_bit(__CTR_FLAG_RAID10_FORMAT, &rs->ctr_flags)) { in parse_raid_params()
1227 rs->ti->error = "Only one 'raid10_format' argument pair allowed"; in parse_raid_params()
1231 rs->ti->error = "'raid10_format' is an invalid parameter for this RAID type"; in parse_raid_params()
1236 rs->ti->error = "Invalid 'raid10_format' value given"; in parse_raid_params()
1247 if (test_and_set_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags)) { in parse_raid_params()
1248 rs->ti->error = "Only one raid4/5/6 set journaling device allowed"; in parse_raid_params()
1252 rs->ti->error = "'journal_dev' is an invalid parameter for this RAID type"; in parse_raid_params()
1255 r = dm_get_device(rs->ti, arg, dm_table_get_mode(rs->ti->table), in parse_raid_params()
1256 &rs->journal_dev.dev); in parse_raid_params()
1258 rs->ti->error = "raid4/5/6 journal device lookup failure"; in parse_raid_params()
1261 jdev = &rs->journal_dev.rdev; in parse_raid_params()
1263 jdev->mddev = &rs->md; in parse_raid_params()
1264 jdev->bdev = rs->journal_dev.dev->bdev; in parse_raid_params()
1267 rs->ti->error = "No space for raid4/5/6 journal"; in parse_raid_params()
1270 rs->journal_dev.mode = R5C_JOURNAL_MODE_WRITE_THROUGH; in parse_raid_params()
1279 if (!test_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags)) { in parse_raid_params()
1280 rs->ti->error = "raid4/5/6 'journal_mode' is invalid without 'journal_dev'"; in parse_raid_params()
1283 if (test_and_set_bit(__CTR_FLAG_JOURNAL_MODE, &rs->ctr_flags)) { in parse_raid_params()
1284 rs->ti->error = "Only one raid4/5/6 'journal_mode' argument allowed"; in parse_raid_params()
1289 rs->ti->error = "Invalid 'journal_mode' argument"; in parse_raid_params()
1292 rs->journal_dev.mode = r; in parse_raid_params()
1300 rs->ti->error = "Bad numerical argument given in raid params"; in parse_raid_params()
1310 if (!__within_range(value, 0, rs->raid_disks - 1)) { in parse_raid_params()
1311 rs->ti->error = "Invalid rebuild index given"; in parse_raid_params()
1315 if (test_and_set_bit(value, (void *) rs->rebuild_disks)) { in parse_raid_params()
1316 rs->ti->error = "rebuild for this index already given"; in parse_raid_params()
1320 rd = rs->dev + value; in parse_raid_params()
1324 set_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags); in parse_raid_params()
1327 rs->ti->error = "write_mostly option is only valid for RAID1"; in parse_raid_params()
1331 if (!__within_range(value, 0, rs->md.raid_disks - 1)) { in parse_raid_params()
1332 rs->ti->error = "Invalid write_mostly index given"; in parse_raid_params()
1337 set_bit(WriteMostly, &rs->dev[value].rdev.flags); in parse_raid_params()
1338 set_bit(__CTR_FLAG_WRITE_MOSTLY, &rs->ctr_flags); in parse_raid_params()
1341 rs->ti->error = "max_write_behind option is only valid for RAID1"; in parse_raid_params()
1345 if (test_and_set_bit(__CTR_FLAG_MAX_WRITE_BEHIND, &rs->ctr_flags)) { in parse_raid_params()
1346 rs->ti->error = "Only one max_write_behind argument pair allowed"; in parse_raid_params()
1355 rs->ti->error = "Max write-behind limit out of range"; in parse_raid_params()
1359 rs->md.bitmap_info.max_write_behind = value / 2; in parse_raid_params()
1361 if (test_and_set_bit(__CTR_FLAG_DAEMON_SLEEP, &rs->ctr_flags)) { in parse_raid_params()
1362 rs->ti->error = "Only one daemon_sleep argument pair allowed"; in parse_raid_params()
1366 rs->ti->error = "daemon sleep period out of range"; in parse_raid_params()
1369 rs->md.bitmap_info.daemon_sleep = value; in parse_raid_params()
1372 if (test_and_set_bit(__CTR_FLAG_DATA_OFFSET, &rs->ctr_flags)) { in parse_raid_params()
1373 rs->ti->error = "Only one data_offset argument pair allowed"; in parse_raid_params()
1379 rs->ti->error = "Bogus data_offset value"; in parse_raid_params()
1382 rs->data_offset = value; in parse_raid_params()
1385 if (test_and_set_bit(__CTR_FLAG_DELTA_DISKS, &rs->ctr_flags)) { in parse_raid_params()
1386 rs->ti->error = "Only one delta_disks argument pair allowed"; in parse_raid_params()
1391 rs->ti->error = "Too many delta_disk requested"; in parse_raid_params()
1395 rs->delta_disks = value; in parse_raid_params()
1397 if (test_and_set_bit(__CTR_FLAG_STRIPE_CACHE, &rs->ctr_flags)) { in parse_raid_params()
1398 rs->ti->error = "Only one stripe_cache argument pair allowed"; in parse_raid_params()
1403 rs->ti->error = "Inappropriate argument: stripe_cache"; in parse_raid_params()
1408 rs->ti->error = "Bogus stripe cache entries value"; in parse_raid_params()
1411 rs->stripe_cache_entries = value; in parse_raid_params()
1413 if (test_and_set_bit(__CTR_FLAG_MIN_RECOVERY_RATE, &rs->ctr_flags)) { in parse_raid_params()
1414 rs->ti->error = "Only one min_recovery_rate argument pair allowed"; in parse_raid_params()
1419 rs->ti->error = "min_recovery_rate out of range"; in parse_raid_params()
1422 rs->md.sync_speed_min = value; in parse_raid_params()
1424 if (test_and_set_bit(__CTR_FLAG_MAX_RECOVERY_RATE, &rs->ctr_flags)) { in parse_raid_params()
1425 rs->ti->error = "Only one max_recovery_rate argument pair allowed"; in parse_raid_params()
1430 rs->ti->error = "max_recovery_rate out of range"; in parse_raid_params()
1433 rs->md.sync_speed_max = value; in parse_raid_params()
1435 if (test_and_set_bit(__CTR_FLAG_REGION_SIZE, &rs->ctr_flags)) { in parse_raid_params()
1436 rs->ti->error = "Only one region_size argument pair allowed"; in parse_raid_params()
1441 rs->requested_bitmap_chunk_sectors = value; in parse_raid_params()
1443 if (test_and_set_bit(__CTR_FLAG_RAID10_COPIES, &rs->ctr_flags)) { in parse_raid_params()
1444 rs->ti->error = "Only one raid10_copies argument pair allowed"; in parse_raid_params()
1448 if (!__within_range(value, 2, rs->md.raid_disks)) { in parse_raid_params()
1449 rs->ti->error = "Bad value for 'raid10_copies'"; in parse_raid_params()
1456 rs->ti->error = "Unable to parse RAID parameter"; in parse_raid_params()
1461 if (test_bit(__CTR_FLAG_SYNC, &rs->ctr_flags) && in parse_raid_params()
1462 test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags)) { in parse_raid_params()
1463 rs->ti->error = "sync and nosync are mutually exclusive"; in parse_raid_params()
1467 if (test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags) && in parse_raid_params()
1468 (test_bit(__CTR_FLAG_SYNC, &rs->ctr_flags) || in parse_raid_params()
1469 test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags))) { in parse_raid_params()
1470 rs->ti->error = "sync/nosync and rebuild are mutually exclusive"; in parse_raid_params()
1474 if (write_mostly >= rs->md.raid_disks) { in parse_raid_params()
1475 rs->ti->error = "Can't set all raid1 devices to write_mostly"; in parse_raid_params()
1479 if (rs->md.sync_speed_max && in parse_raid_params()
1480 rs->md.sync_speed_min > rs->md.sync_speed_max) { in parse_raid_params()
1481 rs->ti->error = "Bogus recovery rates"; in parse_raid_params()
1485 if (validate_region_size(rs, region_size)) in parse_raid_params()
1488 if (rs->md.chunk_sectors) in parse_raid_params()
1489 max_io_len = rs->md.chunk_sectors; in parse_raid_params()
1493 if (dm_set_target_max_io_len(rs->ti, max_io_len)) in parse_raid_params()
1497 if (raid10_copies > rs->md.raid_disks) { in parse_raid_params()
1498 rs->ti->error = "Not enough devices to satisfy specification"; in parse_raid_params()
1502 rs->md.new_layout = raid10_format_to_md_layout(rs, raid10_format, raid10_copies); in parse_raid_params()
1503 if (rs->md.new_layout < 0) { in parse_raid_params()
1504 rs->ti->error = "Error getting raid10 format"; in parse_raid_params()
1505 return rs->md.new_layout; in parse_raid_params()
1508 rt = get_raid_type_by_ll(10, rs->md.new_layout); in parse_raid_params()
1510 rs->ti->error = "Failed to recognize new raid10 layout"; in parse_raid_params()
1516 test_bit(__CTR_FLAG_RAID10_USE_NEAR_SETS, &rs->ctr_flags)) { in parse_raid_params()
1517 rs->ti->error = "RAID10 format 'near' and 'raid10_use_near_sets' are incompatible"; in parse_raid_params()
1522 rs->raid10_copies = raid10_copies; in parse_raid_params()
1525 rs->md.persistent = 0; in parse_raid_params()
1526 rs->md.external = 1; in parse_raid_params()
1529 return rs_check_for_valid_flags(rs); in parse_raid_params()
1533 static int rs_set_raid456_stripe_cache(struct raid_set *rs) in rs_set_raid456_stripe_cache() argument
1537 struct mddev *mddev = &rs->md; in rs_set_raid456_stripe_cache()
1539 uint32_t nr_stripes = rs->stripe_cache_entries; in rs_set_raid456_stripe_cache()
1541 if (!rt_is_raid456(rs->raid_type)) { in rs_set_raid456_stripe_cache()
1542 rs->ti->error = "Inappropriate raid level; cannot change stripe_cache size"; in rs_set_raid456_stripe_cache()
1554 rs->ti->error = "Cannot change stripe_cache size on inactive RAID set"; in rs_set_raid456_stripe_cache()
1562 rs->ti->error = "Failed to set raid4/5/6 stripe cache size"; in rs_set_raid456_stripe_cache()
1573 static unsigned int mddev_data_stripes(struct raid_set *rs) in mddev_data_stripes() argument
1575 return rs->md.raid_disks - rs->raid_type->parity_devs; in mddev_data_stripes()
1579 static unsigned int rs_data_stripes(struct raid_set *rs) in rs_data_stripes() argument
1581 return rs->raid_disks - rs->raid_type->parity_devs; in rs_data_stripes()
1588 static sector_t __rdev_sectors(struct raid_set *rs) in __rdev_sectors() argument
1592 for (i = 0; i < rs->md.raid_disks; i++) { in __rdev_sectors()
1593 struct md_rdev *rdev = &rs->dev[i].rdev; in __rdev_sectors()
1604 static int _check_data_dev_sectors(struct raid_set *rs) in _check_data_dev_sectors() argument
1609 rdev_for_each(rdev, &rs->md) in _check_data_dev_sectors()
1612 if (ds < rs->md.dev_sectors) { in _check_data_dev_sectors()
1613 rs->ti->error = "Component device(s) too small"; in _check_data_dev_sectors()
1622 static int rs_set_dev_and_array_sectors(struct raid_set *rs, sector_t sectors, bool use_mddev) in rs_set_dev_and_array_sectors() argument
1627 struct mddev *mddev = &rs->md; in rs_set_dev_and_array_sectors()
1631 data_stripes = mddev_data_stripes(rs); in rs_set_dev_and_array_sectors()
1633 delta_disks = rs->delta_disks; in rs_set_dev_and_array_sectors()
1634 data_stripes = rs_data_stripes(rs); in rs_set_dev_and_array_sectors()
1638 if (rt_is_raid1(rs->raid_type)) in rs_set_dev_and_array_sectors()
1640 else if (rt_is_raid10(rs->raid_type)) { in rs_set_dev_and_array_sectors()
1641 if (rs->raid10_copies < 2 || in rs_set_dev_and_array_sectors()
1643 rs->ti->error = "Bogus raid10 data copies or delta disks"; in rs_set_dev_and_array_sectors()
1647 dev_sectors *= rs->raid10_copies; in rs_set_dev_and_array_sectors()
1652 if (sector_div(array_sectors, rs->raid10_copies)) in rs_set_dev_and_array_sectors()
1664 rs_set_rdev_sectors(rs); in rs_set_dev_and_array_sectors()
1666 return _check_data_dev_sectors(rs); in rs_set_dev_and_array_sectors()
1668 rs->ti->error = "Target length not divisible by number of data devices"; in rs_set_dev_and_array_sectors()
1673 static void rs_setup_recovery(struct raid_set *rs, sector_t dev_sectors) in rs_setup_recovery() argument
1676 if (rs_is_raid0(rs)) in rs_setup_recovery()
1677 rs->md.recovery_cp = MaxSector; in rs_setup_recovery()
1683 else if (rs_is_raid6(rs)) in rs_setup_recovery()
1684 rs->md.recovery_cp = dev_sectors; in rs_setup_recovery()
1690 rs->md.recovery_cp = test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags) in rs_setup_recovery()
1696 struct raid_set *rs = container_of(ws, struct raid_set, md.event_work); in do_table_event() local
1699 if (!rs_is_reshaping(rs)) { in do_table_event()
1700 if (rs_is_raid10(rs)) in do_table_event()
1701 rs_set_rdev_sectors(rs); in do_table_event()
1702 rs_set_capacity(rs); in do_table_event()
1704 dm_table_event(rs->ti->table); in do_table_event()
1713 static int rs_check_takeover(struct raid_set *rs) in rs_check_takeover() argument
1715 struct mddev *mddev = &rs->md; in rs_check_takeover()
1718 if (rs->md.degraded) { in rs_check_takeover()
1719 rs->ti->error = "Can't takeover degraded raid set"; in rs_check_takeover()
1723 if (rs_is_reshaping(rs)) { in rs_check_takeover()
1724 rs->ti->error = "Can't takeover reshaping raid set"; in rs_check_takeover()
1737 !(rs->raid_disks % mddev->raid_disks)) in rs_check_takeover()
1862 rs->ti->error = "takeover not possible"; in rs_check_takeover()
1867 static bool rs_takeover_requested(struct raid_set *rs) in rs_takeover_requested() argument
1869 return rs->md.new_level != rs->md.level; in rs_takeover_requested()
1873 static bool rs_reshape_requested(struct raid_set *rs) in rs_reshape_requested() argument
1876 struct mddev *mddev = &rs->md; in rs_reshape_requested()
1878 if (rs_takeover_requested(rs)) in rs_reshape_requested()
1881 if (rs_is_raid0(rs)) in rs_reshape_requested()
1886 rs->delta_disks; in rs_reshape_requested()
1889 if (rs_is_raid1(rs)) { in rs_reshape_requested()
1890 if (rs->delta_disks) in rs_reshape_requested()
1891 return !!rs->delta_disks; in rs_reshape_requested()
1894 mddev->raid_disks != rs->raid_disks; in rs_reshape_requested()
1897 if (rs_is_raid10(rs)) in rs_reshape_requested()
1900 rs->delta_disks >= 0; in rs_reshape_requested()
2004 static int rs_check_reshape(struct raid_set *rs) in rs_check_reshape() argument
2006 struct mddev *mddev = &rs->md; in rs_check_reshape()
2009 rs->ti->error = "Reshape not supported"; in rs_check_reshape()
2011 rs->ti->error = "Can't reshape degraded raid set"; in rs_check_reshape()
2012 else if (rs_is_recovering(rs)) in rs_check_reshape()
2013 rs->ti->error = "Convert request on recovering raid set prohibited"; in rs_check_reshape()
2014 else if (rs_is_reshaping(rs)) in rs_check_reshape()
2015 rs->ti->error = "raid set already reshaping!"; in rs_check_reshape()
2016 else if (!(rs_is_raid1(rs) || rs_is_raid10(rs) || rs_is_raid456(rs))) in rs_check_reshape()
2017 rs->ti->error = "Reshaping only supported for raid1/4/5/6/10"; in rs_check_reshape()
2079 struct raid_set *rs = container_of(mddev, struct raid_set, md); in super_sync() local
2091 for (i = 0; i < rs->raid_disks; i++) in super_sync()
2092 if (!rs->dev[i].data_dev || test_bit(Faulty, &rs->dev[i].rdev.flags)) { in super_sync()
2200 static int super_init_validation(struct raid_set *rs, struct md_rdev *rdev) in super_init_validation() argument
2204 struct mddev *mddev = &rs->md; in super_init_validation()
2241 if (test_bit(__CTR_FLAG_DELTA_DISKS, &rs->ctr_flags)) { in super_init_validation()
2253 rs->raid_type = get_raid_type_by_ll(mddev->level, mddev->layout); in super_init_validation()
2263 if (rs_takeover_requested(rs)) { in super_init_validation()
2270 } else if (rs_reshape_requested(rs)) { in super_init_validation()
2283 if (rs->delta_disks) in super_init_validation()
2285 mddev->raid_disks, mddev->raid_disks + rs->delta_disks); in super_init_validation()
2286 if (rs_is_raid10(rs)) { in super_init_validation()
2300 if (!test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags)) in super_init_validation()
2338 if (new_devs == rs->raid_disks || !rebuilds) { in super_init_validation()
2340 if (new_devs == rs->raid_disks) { in super_init_validation()
2344 new_devs != rs->delta_disks) { in super_init_validation()
2359 } else if (!test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags) && rs_is_recovering(rs)) { in super_init_validation()
2363 } else if (rs_is_reshaping(rs)) { in super_init_validation()
2392 if (rs_is_raid10(rs) && __is_raid10_near(mddev->layout)) { in super_init_validation()
2394 rs->raid_disks % rs->raid10_copies) { in super_init_validation()
2395 rs->ti->error = in super_init_validation()
2402 } else if (!(rs_is_raid10(rs) && rt_is_raid0(rs->raid_type)) && in super_init_validation()
2403 !(rs_is_raid0(rs) && rt_is_raid10(rs->raid_type)) && in super_init_validation()
2404 !rt_is_raid1(rs->raid_type)) { in super_init_validation()
2405 rs->ti->error = "Cannot change device positions in raid set"; in super_init_validation()
2424 static int super_validate(struct raid_set *rs, struct md_rdev *rdev) in super_validate() argument
2426 struct mddev *mddev = &rs->md; in super_validate()
2429 if (rs_is_raid0(rs) || !rdev->sb_page || rdev->raid_disk < 0) in super_validate()
2438 if (!mddev->events && super_init_validation(rs, rdev)) in super_validate()
2443 rs->ti->error = "Unable to assemble array: Unknown flag(s) in compatible feature flags"; in super_validate()
2448 rs->ti->error = "Unable to assemble array: No incompatible feature flags supported yet"; in super_validate()
2453 …mddev->bitmap_info.offset = (rt_is_raid0(rs->raid_type) || rs->journal_dev.dev) ? 0 : to_sector(40… in super_validate()
2472 else if (!rs_is_reshaping(rs)) in super_validate()
2495 static int analyse_superblocks(struct dm_target *ti, struct raid_set *rs) in analyse_superblocks() argument
2499 struct mddev *mddev = &rs->md; in analyse_superblocks()
2526 if (test_bit(__CTR_FLAG_SYNC, &rs->ctr_flags)) in analyse_superblocks()
2543 if (rs_is_raid0(rs)) in analyse_superblocks()
2566 rs->ti->error = "Unable to assemble array: Invalid superblocks"; in analyse_superblocks()
2567 if (super_validate(rs, freshest)) in analyse_superblocks()
2570 if (validate_raid_redundancy(rs)) { in analyse_superblocks()
2571 rs->ti->error = "Insufficient redundancy to activate array"; in analyse_superblocks()
2578 super_validate(rs, rdev)) in analyse_superblocks()
2591 static int rs_adjust_data_offsets(struct raid_set *rs) in rs_adjust_data_offsets() argument
2597 if (!test_bit(__CTR_FLAG_DATA_OFFSET, &rs->ctr_flags)) { in rs_adjust_data_offsets()
2598 if (!rs_is_reshapable(rs)) in rs_adjust_data_offsets()
2605 rdev = &rs->dev[0].rdev; in rs_adjust_data_offsets()
2607 if (rs->delta_disks < 0) { in rs_adjust_data_offsets()
2617 new_data_offset = rs->data_offset; in rs_adjust_data_offsets()
2619 } else if (rs->delta_disks > 0) { in rs_adjust_data_offsets()
2628 data_offset = rs->data_offset; in rs_adjust_data_offsets()
2650 data_offset = rs->data_offset ? rdev->data_offset : 0; in rs_adjust_data_offsets()
2651 new_data_offset = data_offset ? 0 : rs->data_offset; in rs_adjust_data_offsets()
2652 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in rs_adjust_data_offsets()
2658 if (rs->data_offset && in rs_adjust_data_offsets()
2659 to_sector(i_size_read(rdev->bdev->bd_inode)) - rs->md.dev_sectors < MIN_FREE_RESHAPE_SPACE) { in rs_adjust_data_offsets()
2660 rs->ti->error = data_offset ? "No space for forward reshape" : in rs_adjust_data_offsets()
2669 if (rs->md.recovery_cp < rs->md.dev_sectors) in rs_adjust_data_offsets()
2670 rs->md.recovery_cp += rs->dev[0].rdev.data_offset; in rs_adjust_data_offsets()
2673 rdev_for_each(rdev, &rs->md) { in rs_adjust_data_offsets()
2684 static void __reorder_raid_disk_indexes(struct raid_set *rs) in __reorder_raid_disk_indexes() argument
2689 rdev_for_each(rdev, &rs->md) { in __reorder_raid_disk_indexes()
2700 static int rs_setup_takeover(struct raid_set *rs) in rs_setup_takeover() argument
2702 struct mddev *mddev = &rs->md; in rs_setup_takeover()
2704 unsigned int d = mddev->raid_disks = rs->raid_disks; in rs_setup_takeover()
2705 sector_t new_data_offset = rs->dev[0].rdev.data_offset ? 0 : rs->data_offset; in rs_setup_takeover()
2707 if (rt_is_raid10(rs->raid_type)) { in rs_setup_takeover()
2708 if (rs_is_raid0(rs)) { in rs_setup_takeover()
2710 __reorder_raid_disk_indexes(rs); in rs_setup_takeover()
2713 mddev->layout = raid10_format_to_md_layout(rs, ALGORITHM_RAID10_FAR, in rs_setup_takeover()
2714 rs->raid10_copies); in rs_setup_takeover()
2715 } else if (rs_is_raid1(rs)) in rs_setup_takeover()
2717 mddev->layout = raid10_format_to_md_layout(rs, ALGORITHM_RAID10_NEAR, in rs_setup_takeover()
2718 rs->raid_disks); in rs_setup_takeover()
2728 rdev = &rs->dev[d].rdev; in rs_setup_takeover()
2730 if (test_bit(d, (void *) rs->rebuild_disks)) { in rs_setup_takeover()
2745 static int rs_prepare_reshape(struct raid_set *rs) in rs_prepare_reshape() argument
2748 struct mddev *mddev = &rs->md; in rs_prepare_reshape()
2750 if (rs_is_raid10(rs)) { in rs_prepare_reshape()
2751 if (rs->raid_disks != mddev->raid_disks && in rs_prepare_reshape()
2753 rs->raid10_copies && in rs_prepare_reshape()
2754 rs->raid10_copies != __raid10_near_copies(mddev->layout)) { in rs_prepare_reshape()
2761 if (rs->raid_disks % rs->raid10_copies) { in rs_prepare_reshape()
2762 rs->ti->error = "Can't reshape raid10 mirror groups"; in rs_prepare_reshape()
2767 __reorder_raid_disk_indexes(rs); in rs_prepare_reshape()
2768 mddev->layout = raid10_format_to_md_layout(rs, ALGORITHM_RAID10_NEAR, in rs_prepare_reshape()
2769 rs->raid10_copies); in rs_prepare_reshape()
2775 } else if (rs_is_raid456(rs)) in rs_prepare_reshape()
2778 else if (rs_is_raid1(rs)) { in rs_prepare_reshape()
2779 if (rs->delta_disks) { in rs_prepare_reshape()
2781 mddev->degraded = rs->delta_disks < 0 ? -rs->delta_disks : rs->delta_disks; in rs_prepare_reshape()
2785 mddev->raid_disks = rs->raid_disks; in rs_prepare_reshape()
2789 rs->ti->error = "Called with bogus raid type"; in rs_prepare_reshape()
2794 set_bit(RT_FLAG_RESHAPE_RS, &rs->runtime_flags); in rs_prepare_reshape()
2795 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in rs_prepare_reshape()
2796 } else if (mddev->raid_disks < rs->raid_disks) in rs_prepare_reshape()
2798 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in rs_prepare_reshape()
2804 static sector_t _get_reshape_sectors(struct raid_set *rs) in _get_reshape_sectors() argument
2809 rdev_for_each(rdev, &rs->md) in _get_reshape_sectors()
2817 return max(reshape_sectors, (sector_t) rs->data_offset); in _get_reshape_sectors()
2827 static int rs_setup_reshape(struct raid_set *rs) in rs_setup_reshape() argument
2831 sector_t reshape_sectors = _get_reshape_sectors(rs); in rs_setup_reshape()
2832 struct mddev *mddev = &rs->md; in rs_setup_reshape()
2835 mddev->delta_disks = rs->delta_disks; in rs_setup_reshape()
2841 DMINFO("Ignoring invalid layout change with delta_disks=%d", rs->delta_disks); in rs_setup_reshape()
2868 if (rs->delta_disks > 0) { in rs_setup_reshape()
2870 for (d = cur_raid_devs; d < rs->raid_disks; d++) { in rs_setup_reshape()
2871 rdev = &rs->dev[d].rdev; in rs_setup_reshape()
2882 rdev->recovery_offset = rs_is_raid1(rs) ? 0 : MaxSector; in rs_setup_reshape()
2888 } else if (rs->delta_disks < 0) { in rs_setup_reshape()
2889 r = rs_set_dev_and_array_sectors(rs, rs->ti->len, true); in rs_setup_reshape()
2915 mddev->reshape_backwards = rs->dev[0].rdev.data_offset ? 0 : 1; in rs_setup_reshape()
2923 rdev_for_each(rdev, &rs->md) in rs_setup_reshape()
2934 static void configure_discard_support(struct raid_set *rs) in configure_discard_support() argument
2938 struct dm_target *ti = rs->ti; in configure_discard_support()
2943 raid456 = rs_is_raid456(rs); in configure_discard_support()
2945 for (i = 0; i < rs->raid_disks; i++) { in configure_discard_support()
2948 if (!rs->dev[i].rdev.bdev) in configure_discard_support()
2951 q = bdev_get_queue(rs->dev[i].rdev.bdev); in configure_discard_support()
2987 struct raid_set *rs = NULL; in raid_ctr() local
3024 rs = raid_set_alloc(ti, rt, num_raid_devs); in raid_ctr()
3025 if (IS_ERR(rs)) in raid_ctr()
3026 return PTR_ERR(rs); in raid_ctr()
3028 r = parse_raid_params(rs, &as, num_raid_params); in raid_ctr()
3032 r = parse_dev_params(rs, &as); in raid_ctr()
3036 rs->md.sync_super = super_sync; in raid_ctr()
3044 r = rs_set_dev_and_array_sectors(rs, rs->ti->len, false); in raid_ctr()
3049 rs->array_sectors = rs->md.array_sectors; in raid_ctr()
3050 rs->dev_sectors = rs->md.dev_sectors; in raid_ctr()
3057 rs_config_backup(rs, &rs_layout); in raid_ctr()
3059 r = analyse_superblocks(ti, rs); in raid_ctr()
3064 sb_array_sectors = rs->md.array_sectors; in raid_ctr()
3065 rdev_sectors = __rdev_sectors(rs); in raid_ctr()
3073 reshape_sectors = _get_reshape_sectors(rs); in raid_ctr()
3074 if (rs->dev_sectors != rdev_sectors) { in raid_ctr()
3075 resize = (rs->dev_sectors != rdev_sectors - reshape_sectors); in raid_ctr()
3076 if (rs->dev_sectors > rdev_sectors - reshape_sectors) in raid_ctr()
3077 set_bit(RT_FLAG_RS_GROW, &rs->runtime_flags); in raid_ctr()
3080 INIT_WORK(&rs->md.event_work, do_table_event); in raid_ctr()
3081 ti->private = rs; in raid_ctr()
3085 rs_config_restore(rs, &rs_layout); in raid_ctr()
3093 if (test_bit(MD_ARRAY_FIRST_USE, &rs->md.flags)) { in raid_ctr()
3095 if (rs_is_raid6(rs) && in raid_ctr()
3096 test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags)) { in raid_ctr()
3101 rs_setup_recovery(rs, 0); in raid_ctr()
3102 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in raid_ctr()
3103 rs_set_new(rs); in raid_ctr()
3104 } else if (rs_is_recovering(rs)) { in raid_ctr()
3107 } else if (rs_is_reshaping(rs)) { in raid_ctr()
3115 } else if (rs_takeover_requested(rs)) { in raid_ctr()
3116 if (rs_is_reshaping(rs)) { in raid_ctr()
3123 if (test_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags)) { in raid_ctr()
3137 r = rs_check_takeover(rs); in raid_ctr()
3141 r = rs_setup_takeover(rs); in raid_ctr()
3145 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in raid_ctr()
3147 rs_setup_recovery(rs, MaxSector); in raid_ctr()
3148 rs_set_new(rs); in raid_ctr()
3149 } else if (rs_reshape_requested(rs)) { in raid_ctr()
3151 clear_bit(RT_FLAG_RS_GROW, &rs->runtime_flags); in raid_ctr()
3159 if (test_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags)) { in raid_ctr()
3166 if (reshape_sectors || rs_is_raid1(rs)) { in raid_ctr()
3174 r = rs_prepare_reshape(rs); in raid_ctr()
3179 rs_setup_recovery(rs, MaxSector); in raid_ctr()
3181 rs_set_cur(rs); in raid_ctr()
3185 if (test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags)) { in raid_ctr()
3186 clear_bit(RT_FLAG_RS_GROW, &rs->runtime_flags); in raid_ctr()
3187 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in raid_ctr()
3188 rs_setup_recovery(rs, MaxSector); in raid_ctr()
3189 } else if (test_bit(RT_FLAG_RS_GROW, &rs->runtime_flags)) { in raid_ctr()
3194 r = rs_set_dev_and_array_sectors(rs, sb_array_sectors, false); in raid_ctr()
3198 …rs_setup_recovery(rs, rs->md.recovery_cp < rs->md.dev_sectors ? rs->md.recovery_cp : rs->md.dev_se… in raid_ctr()
3201 r = rs_set_dev_and_array_sectors(rs, rs->ti->len, false); in raid_ctr()
3205 if (sb_array_sectors > rs->array_sectors) in raid_ctr()
3206 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in raid_ctr()
3208 rs_set_cur(rs); in raid_ctr()
3212 r = rs_adjust_data_offsets(rs); in raid_ctr()
3217 rs->md.ro = 1; in raid_ctr()
3218 rs->md.in_sync = 1; in raid_ctr()
3221 set_bit(MD_RECOVERY_FROZEN, &rs->md.recovery); in raid_ctr()
3224 mddev_lock_nointr(&rs->md); in raid_ctr()
3225 r = md_run(&rs->md); in raid_ctr()
3226 rs->md.in_sync = 0; /* Assume already marked dirty */ in raid_ctr()
3229 mddev_unlock(&rs->md); in raid_ctr()
3233 r = md_start(&rs->md); in raid_ctr()
3237 mddev_unlock(&rs->md); in raid_ctr()
3242 if (test_bit(__CTR_FLAG_JOURNAL_MODE, &rs->ctr_flags)) { in raid_ctr()
3243 r = r5c_journal_mode_set(&rs->md, rs->journal_dev.mode); in raid_ctr()
3246 mddev_unlock(&rs->md); in raid_ctr()
3251 mddev_suspend(&rs->md); in raid_ctr()
3252 set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags); in raid_ctr()
3255 if (rs_is_raid456(rs)) { in raid_ctr()
3256 r = rs_set_raid456_stripe_cache(rs); in raid_ctr()
3262 if (test_bit(RT_FLAG_RESHAPE_RS, &rs->runtime_flags)) { in raid_ctr()
3263 r = rs_check_reshape(rs); in raid_ctr()
3268 rs_config_restore(rs, &rs_layout); in raid_ctr()
3270 if (rs->md.pers->start_reshape) { in raid_ctr()
3271 r = rs->md.pers->check_reshape(&rs->md); in raid_ctr()
3280 configure_discard_support(rs); in raid_ctr()
3282 mddev_unlock(&rs->md); in raid_ctr()
3289 md_stop(&rs->md); in raid_ctr()
3291 raid_set_free(rs); in raid_ctr()
3298 struct raid_set *rs = ti->private; in raid_dtr() local
3300 md_stop(&rs->md); in raid_dtr()
3301 raid_set_free(rs); in raid_dtr()
3306 struct raid_set *rs = ti->private; in raid_map() local
3307 struct mddev *mddev = &rs->md; in raid_map()
3384 static const char *__raid_dev_status(struct raid_set *rs, struct md_rdev *rdev) in __raid_dev_status() argument
3391 return (rs->journal_dev.mode == R5C_JOURNAL_MODE_WRITE_THROUGH) ? "A" : "a"; in __raid_dev_status()
3392 else if (test_bit(RT_FLAG_RS_RESYNCING, &rs->runtime_flags) || in __raid_dev_status()
3393 (!test_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags) && in __raid_dev_status()
3401 static sector_t rs_get_progress(struct raid_set *rs, unsigned long recovery, in rs_get_progress() argument
3405 struct mddev *mddev = &rs->md; in rs_get_progress()
3407 clear_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); in rs_get_progress()
3408 clear_bit(RT_FLAG_RS_RESYNCING, &rs->runtime_flags); in rs_get_progress()
3410 if (rs_is_raid0(rs)) { in rs_get_progress()
3412 set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); in rs_get_progress()
3426 set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); in rs_get_progress()
3443 set_bit(RT_FLAG_RS_RESYNCING, &rs->runtime_flags); in rs_get_progress()
3451 set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); in rs_get_progress()
3458 set_bit(RT_FLAG_RS_RESYNCING, &rs->runtime_flags); in rs_get_progress()
3469 set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); in rs_get_progress()
3473 clear_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); in rs_get_progress()
3491 struct raid_set *rs = ti->private; in raid_status() local
3492 struct mddev *mddev = &rs->md; in raid_status()
3515 resync_max_sectors = test_bit(RT_FLAG_RS_PRERESUMED, &rs->runtime_flags) ? in raid_status()
3517 recovery = rs->md.recovery; in raid_status()
3519 progress = rs_get_progress(rs, recovery, state, resync_max_sectors); in raid_status()
3524 for (i = 0; i < rs->raid_disks; i++) in raid_status()
3525 DMEMIT(__raid_dev_status(rs, &rs->dev[i].rdev)); in raid_status()
3570 DMEMIT(" %llu", (unsigned long long) rs->dev[0].rdev.data_offset); in raid_status()
3575 DMEMIT(" %s", test_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags) ? in raid_status()
3576 __raid_dev_status(rs, &rs->journal_dev.rdev) : "-"); in raid_status()
3586 for (i = 0; i < rs->raid_disks; i++) { in raid_status()
3587 rebuild_writemostly_count += (test_bit(i, (void *) rs->rebuild_disks) ? 2 : 0) + in raid_status()
3588 (test_bit(WriteMostly, &rs->dev[i].rdev.flags) ? 2 : 0); in raid_status()
3590 rebuild_writemostly_count -= (test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags) ? 2 : 0) + in raid_status()
3591 (test_bit(__CTR_FLAG_WRITE_MOSTLY, &rs->ctr_flags) ? 2 : 0); in raid_status()
3594 hweight32(rs->ctr_flags & CTR_FLAG_OPTIONS_NO_ARGS) + in raid_status()
3595 hweight32(rs->ctr_flags & CTR_FLAG_OPTIONS_ONE_ARG) * 2; in raid_status()
3598 DMEMIT("%s %u %u", rs->raid_type->name, raid_param_cnt, mddev->new_chunk_sectors); in raid_status()
3599 if (test_bit(__CTR_FLAG_SYNC, &rs->ctr_flags)) in raid_status()
3601 if (test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags)) in raid_status()
3603 if (test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags)) in raid_status()
3604 for (i = 0; i < rs->raid_disks; i++) in raid_status()
3605 if (test_bit(i, (void *) rs->rebuild_disks)) in raid_status()
3607 if (test_bit(__CTR_FLAG_DAEMON_SLEEP, &rs->ctr_flags)) in raid_status()
3610 if (test_bit(__CTR_FLAG_MIN_RECOVERY_RATE, &rs->ctr_flags)) in raid_status()
3613 if (test_bit(__CTR_FLAG_MAX_RECOVERY_RATE, &rs->ctr_flags)) in raid_status()
3616 if (test_bit(__CTR_FLAG_WRITE_MOSTLY, &rs->ctr_flags)) in raid_status()
3617 for (i = 0; i < rs->raid_disks; i++) in raid_status()
3618 if (test_bit(WriteMostly, &rs->dev[i].rdev.flags)) in raid_status()
3620 rs->dev[i].rdev.raid_disk); in raid_status()
3621 if (test_bit(__CTR_FLAG_MAX_WRITE_BEHIND, &rs->ctr_flags)) in raid_status()
3624 if (test_bit(__CTR_FLAG_STRIPE_CACHE, &rs->ctr_flags)) in raid_status()
3627 if (test_bit(__CTR_FLAG_REGION_SIZE, &rs->ctr_flags)) in raid_status()
3630 if (test_bit(__CTR_FLAG_RAID10_COPIES, &rs->ctr_flags)) in raid_status()
3633 if (test_bit(__CTR_FLAG_RAID10_FORMAT, &rs->ctr_flags)) in raid_status()
3636 if (test_bit(__CTR_FLAG_DELTA_DISKS, &rs->ctr_flags)) in raid_status()
3638 max(rs->delta_disks, mddev->delta_disks)); in raid_status()
3639 if (test_bit(__CTR_FLAG_DATA_OFFSET, &rs->ctr_flags)) in raid_status()
3641 (unsigned long long) rs->data_offset); in raid_status()
3642 if (test_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags)) in raid_status()
3644 __get_dev_name(rs->journal_dev.dev)); in raid_status()
3645 if (test_bit(__CTR_FLAG_JOURNAL_MODE, &rs->ctr_flags)) in raid_status()
3647 md_journal_mode_to_dm_raid(rs->journal_dev.mode)); in raid_status()
3648 DMEMIT(" %d", rs->raid_disks); in raid_status()
3649 for (i = 0; i < rs->raid_disks; i++) in raid_status()
3650 DMEMIT(" %s %s", __get_dev_name(rs->dev[i].meta_dev), in raid_status()
3651 __get_dev_name(rs->dev[i].data_dev)); in raid_status()
3658 struct raid_set *rs = ti->private; in raid_message() local
3659 struct mddev *mddev = &rs->md; in raid_message()
3709 struct raid_set *rs = ti->private; in raid_iterate_devices() local
3713 for (i = 0; !r && i < rs->md.raid_disks; i++) in raid_iterate_devices()
3714 if (rs->dev[i].data_dev) in raid_iterate_devices()
3716 rs->dev[i].data_dev, in raid_iterate_devices()
3718 rs->md.dev_sectors, in raid_iterate_devices()
3726 struct raid_set *rs = ti->private; in raid_io_hints() local
3727 unsigned int chunk_size_bytes = to_bytes(rs->md.chunk_sectors); in raid_io_hints()
3730 blk_limits_io_opt(limits, chunk_size_bytes * mddev_data_stripes(rs)); in raid_io_hints()
3736 if (rs_is_raid10(rs)) { in raid_io_hints()
3739 limits->max_discard_sectors = min_not_zero(rs->md.chunk_sectors, in raid_io_hints()
3746 struct raid_set *rs = ti->private; in raid_postsuspend() local
3748 if (!test_and_set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags)) { in raid_postsuspend()
3750 if (!test_bit(MD_RECOVERY_FROZEN, &rs->md.recovery)) in raid_postsuspend()
3751 md_stop_writes(&rs->md); in raid_postsuspend()
3753 mddev_lock_nointr(&rs->md); in raid_postsuspend()
3754 mddev_suspend(&rs->md); in raid_postsuspend()
3755 mddev_unlock(&rs->md); in raid_postsuspend()
3759 static void attempt_restore_of_faulty_devices(struct raid_set *rs) in attempt_restore_of_faulty_devices() argument
3766 struct mddev *mddev = &rs->md; in attempt_restore_of_faulty_devices()
3776 r = &rs->dev[i].rdev; in attempt_restore_of_faulty_devices()
3785 rs->raid_type->name, i); in attempt_restore_of_faulty_devices()
3827 rdev_for_each(r, &rs->md) { in attempt_restore_of_faulty_devices()
3842 static int __load_dirty_region_bitmap(struct raid_set *rs) in __load_dirty_region_bitmap() argument
3847 if (!rs_is_raid0(rs) && in __load_dirty_region_bitmap()
3848 !test_and_set_bit(RT_FLAG_RS_BITMAP_LOADED, &rs->runtime_flags)) { in __load_dirty_region_bitmap()
3849 r = md_bitmap_load(&rs->md); in __load_dirty_region_bitmap()
3858 static void rs_update_sbs(struct raid_set *rs) in rs_update_sbs() argument
3860 struct mddev *mddev = &rs->md; in rs_update_sbs()
3876 static int rs_start_reshape(struct raid_set *rs) in rs_start_reshape() argument
3879 struct mddev *mddev = &rs->md; in rs_start_reshape()
3885 r = rs_setup_reshape(rs); in rs_start_reshape()
3896 rs->ti->error = "pers->check_reshape() failed"; in rs_start_reshape()
3907 rs->ti->error = "pers->start_reshape() failed"; in rs_start_reshape()
3917 rs_update_sbs(rs); in rs_start_reshape()
3925 struct raid_set *rs = ti->private; in raid_preresume() local
3926 struct mddev *mddev = &rs->md; in raid_preresume()
3929 if (test_and_set_bit(RT_FLAG_RS_PRERESUMED, &rs->runtime_flags)) in raid_preresume()
3938 if (test_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags)) in raid_preresume()
3939 rs_update_sbs(rs); in raid_preresume()
3942 r = __load_dirty_region_bitmap(rs); in raid_preresume()
3947 if (test_bit(RT_FLAG_RS_GROW, &rs->runtime_flags)) { in raid_preresume()
3948 mddev->array_sectors = rs->array_sectors; in raid_preresume()
3949 mddev->dev_sectors = rs->dev_sectors; in raid_preresume()
3950 rs_set_rdev_sectors(rs); in raid_preresume()
3951 rs_set_capacity(rs); in raid_preresume()
3955 if (test_bit(RT_FLAG_RS_BITMAP_LOADED, &rs->runtime_flags) && mddev->bitmap && in raid_preresume()
3956 (test_bit(RT_FLAG_RS_GROW, &rs->runtime_flags) || in raid_preresume()
3957 (rs->requested_bitmap_chunk_sectors && in raid_preresume()
3958 mddev->bitmap_info.chunksize != to_bytes(rs->requested_bitmap_chunk_sectors)))) { in raid_preresume()
3959 int chunksize = to_bytes(rs->requested_bitmap_chunk_sectors) ?: mddev->bitmap_info.chunksize; in raid_preresume()
3972 if (test_bit(RT_FLAG_RS_GROW, &rs->runtime_flags)) in raid_preresume()
3977 if (test_bit(RT_FLAG_RESHAPE_RS, &rs->runtime_flags)) { in raid_preresume()
3979 rs_set_rdev_sectors(rs); in raid_preresume()
3981 r = rs_start_reshape(rs); in raid_preresume()
3993 struct raid_set *rs = ti->private; in raid_resume() local
3994 struct mddev *mddev = &rs->md; in raid_resume()
3996 if (test_and_set_bit(RT_FLAG_RS_RESUMED, &rs->runtime_flags)) { in raid_resume()
4002 attempt_restore_of_faulty_devices(rs); in raid_resume()
4005 if (test_and_clear_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags)) { in raid_resume()
4008 rs_set_capacity(rs); in raid_resume()