Lines Matching +full:mode +full:- +full:recovery
2 * Copyright (C) 2010-2011 Neil Brown
3 * Copyright (C) 2010-2018 Red Hat, Inc. All rights reserved.
15 #include "md-bitmap.h"
17 #include <linux/device-mapper.h>
20 #define MAX_RAID_DEVICES 253 /* md-raid kernel limit */
35 * The following flags are used by dm-raid.c to set up the array state.
44 * ti->len and give more flexibility in altering size and
50 * |--------- Physical Device ---------|
51 * |- meta_dev -|------ data_dev ------|
59 * Bits for establishing rs->ctr_flags
85 #define __CTR_FLAG_JOURNAL_MODE 16 /* 2 */ /* Only with raid4/5/6 (journal mode)! */
88 * Flags for rs->ctr_flags field.
170 * that both parity and q-syndrome are being written properly with
199 * Flags for rs->runtime_flags field
217 #define DISKS_ARRAY_ELEMS ((MAX_RAID_DEVICES + (sizeof(uint64_t) * 8 - 1)) / sizeof(uint64_t) / 8)
253 int mode; member
261 struct mddev *mddev = &rs->md; in rs_config_backup()
263 l->new_level = mddev->new_level; in rs_config_backup()
264 l->new_layout = mddev->new_layout; in rs_config_backup()
265 l->new_chunk_sectors = mddev->new_chunk_sectors; in rs_config_backup()
270 struct mddev *mddev = &rs->md; in rs_config_restore()
272 mddev->new_level = l->new_level; in rs_config_restore()
273 mddev->new_layout = l->new_layout; in rs_config_restore()
274 mddev->new_chunk_sectors = l->new_chunk_sectors; in rs_config_restore()
350 while (anf-- > __arg_name_flags) in dm_raid_arg_name_by_flag()
351 if (flag & anf->flag) in dm_raid_arg_name_by_flag()
352 return anf->name; in dm_raid_arg_name_by_flag()
360 /* Define correlation of raid456 journal cache modes and dm-raid target line parameters */
362 const int mode; member
369 /* Return MD raid4/5/6 journal mode for dm @journal_mode one */
370 static int dm_raid_journal_mode_to_md(const char *mode) in dm_raid_journal_mode_to_md() argument
374 while (m--) in dm_raid_journal_mode_to_md()
375 if (!strcasecmp(mode, _raid456_journal_mode[m].param)) in dm_raid_journal_mode_to_md()
376 return _raid456_journal_mode[m].mode; in dm_raid_journal_mode_to_md()
378 return -EINVAL; in dm_raid_journal_mode_to_md()
381 /* Return dm-raid raid4/5/6 journal mode string for @mode */
382 static const char *md_journal_mode_to_dm_raid(const int mode) in md_journal_mode_to_dm_raid() argument
386 while (m--) in md_journal_mode_to_dm_raid()
387 if (mode == _raid456_journal_mode[m].mode) in md_journal_mode_to_dm_raid()
401 return !rs->md.level; in rs_is_raid0()
407 return rs->md.level == 1; in rs_is_raid1()
413 return rs->md.level == 10; in rs_is_raid10()
419 return rs->md.level == 6; in rs_is_raid6()
425 return __within_range(rs->md.level, 4, 6); in rs_is_raid456()
433 (rs_is_raid10(rs) && !__is_raid10_far(rs->md.new_layout)); in rs_is_reshapable()
439 return rs->md.recovery_cp < rs->md.dev_sectors; in rs_is_recovering()
445 return rs->md.reshape_position != MaxSector; in rs_is_reshaping()
455 return !rt->level; in rt_is_raid0()
461 return rt->level == 1; in rt_is_raid1()
467 return rt->level == 10; in rt_is_raid10()
473 return __within_range(rt->level, 4, 5); in rt_is_raid45()
479 return rt->level == 6; in rt_is_raid6()
485 return __within_range(rt->level, 4, 6); in rt_is_raid456()
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()
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()
515 return -EINVAL; in rs_check_for_valid_flags()
588 return -EINVAL; in raid10_name_to_format()
610 * -> disable it for now in the definition above in raid10_format_to_md_layout()
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()
628 return -EINVAL; in raid10_format_to_md_layout()
637 if (rtp->level == 10) { in __got_raid10()
638 switch (rtp->algorithm) { in __got_raid10()
659 while (rtp-- > raid_types) in get_raid_type()
660 if (!strcasecmp(rtp->name, name)) in get_raid_type()
671 while (rtp-- > raid_types) { in get_raid_type_by_ll()
673 if (rtp->level == level && in get_raid_type_by_ll()
674 (__got_raid10(rtp, layout) || rtp->algorithm == layout)) in get_raid_type_by_ll()
684 struct mddev *mddev = &rs->md; in rs_set_rdev_sectors()
688 * raid10 sets rdev->sector to the device size, which in rs_set_rdev_sectors()
689 * is unintended in case of out-of-place reshaping in rs_set_rdev_sectors()
692 if (!test_bit(Journal, &rdev->flags)) in rs_set_rdev_sectors()
693 rdev->sectors = mddev->dev_sectors; in rs_set_rdev_sectors()
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()
713 struct mddev *mddev = &rs->md; in rs_set_cur()
715 mddev->new_level = mddev->level; in rs_set_cur()
716 mddev->new_layout = mddev->layout; in rs_set_cur()
717 mddev->new_chunk_sectors = mddev->chunk_sectors; in rs_set_cur()
726 struct mddev *mddev = &rs->md; in rs_set_new()
728 mddev->level = mddev->new_level; in rs_set_new()
729 mddev->layout = mddev->new_layout; in rs_set_new()
730 mddev->chunk_sectors = mddev->new_chunk_sectors; in rs_set_new()
731 mddev->raid_disks = rs->raid_disks; in rs_set_new()
732 mddev->delta_disks = 0; in rs_set_new()
741 if (raid_devs <= raid_type->parity_devs) { in raid_set_alloc()
742 ti->error = "Insufficient number of devices"; in raid_set_alloc()
743 return ERR_PTR(-EINVAL); in raid_set_alloc()
748 ti->error = "Cannot allocate raid context"; in raid_set_alloc()
749 return ERR_PTR(-ENOMEM); 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()
773 * rs->md.persistent in raid_set_alloc()
774 * rs->md.external in raid_set_alloc()
775 * rs->md.chunk_sectors in raid_set_alloc()
776 * rs->md.new_chunk_sectors in raid_set_alloc()
777 * rs->md.dev_sectors in raid_set_alloc()
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()
806 * <meta_dev>: meta device name or '-' if missing
807 * <data_dev>: data device name or '-' if missing
810 * - -
811 * - <data_dev>
815 * <meta_dev> -
831 return -EINVAL; in parse_dev_params()
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()
849 return -EINVAL; in parse_dev_params()
851 if (strcmp(arg, "-")) { 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()
862 return -ENOMEM; in parse_dev_params()
868 return -EINVAL; in parse_dev_params()
870 if (!strcmp(arg, "-")) { 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()
874 return -EINVAL; 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()
879 return -EINVAL; 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()
912 * is in-sync or not - we must assume it is not. Therefore, in parse_dev_params()
915 * Even if there is metadata, the on-disk information may in parse_dev_params()
916 * indicate that the array is not in-sync and it will then in parse_dev_params()
921 rs->ti->error = "Unable to rebuild drive while array is not in-sync"; in parse_dev_params()
922 return -EINVAL; in parse_dev_params()
933 * Set rs->md.bitmap_info.chunksize (which really refers to 'region size').
934 * Ensure that (ti->len/region_size < 2^21) - required by MD bitmap.
936 * Returns: 0 on success, -EINVAL on failure.
940 unsigned long min_region_size = rs->ti->len / (1 << 21); in validate_region_size()
960 * Validate user-supplied value. 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()
964 return -EINVAL; in validate_region_size()
970 rs->ti->error = "Supplied region size is too small"; in validate_region_size()
971 return -EINVAL; in validate_region_size()
975 rs->ti->error = "Region size is not a power of 2"; in validate_region_size()
976 return -EINVAL; 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()
981 return -EINVAL; in validate_region_size()
988 rs->md.bitmap_info.chunksize = to_bytes(region_size); in validate_region_size()
1000 * Returns: 0 on success, -EINVAL on failure.
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()
1030 return -EINVAL; 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()
1088 return -EINVAL; in validate_raid_redundancy()
1094 return -EINVAL; in validate_raid_redundancy()
1104 * [[no]sync] Force or prevent recovery of the
1112 * [max_write_behind <sectors>] See '-write-behind=' (man mdadm)
1118 * RAID10-only options:
1132 struct raid_type *rt = rs->raid_type; in parse_raid_params()
1135 num_raid_params--; /* Account for chunk_size argument */ in parse_raid_params()
1138 rs->ti->error = "Bad numerical argument given for chunk_size"; in parse_raid_params()
1139 return -EINVAL; in parse_raid_params()
1143 * First, parse the in-order required arguments in parse_raid_params()
1151 rs->ti->error = "Chunk size must be a power of 2"; in parse_raid_params()
1152 return -EINVAL; in parse_raid_params()
1154 rs->ti->error = "Chunk size value is too small"; in parse_raid_params()
1155 return -EINVAL; in parse_raid_params()
1158 rs->md.new_chunk_sectors = rs->md.chunk_sectors = value; in parse_raid_params()
1166 * - Device is reset when param is read. in parse_raid_params()
1168 * - No matching superblock found, resets device. in parse_raid_params()
1170 * - Failure noticed, resets device for bitmap replay. in parse_raid_params()
1171 * 4) Device hadn't completed recovery after previous failure. in parse_raid_params()
1172 * - Superblock is read and overrides recovery_offset. 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()
1189 return -EINVAL; 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()
1195 return -EINVAL; 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()
1202 return -EINVAL; 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()
1209 return -EINVAL; in parse_raid_params()
1217 rs->ti->error = "Wrong number of raid parameters given"; in parse_raid_params()
1218 return -EINVAL; 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()
1228 return -EINVAL; in parse_raid_params()
1231 rs->ti->error = "'raid10_format' is an invalid parameter for this RAID type"; in parse_raid_params()
1232 return -EINVAL; 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()
1249 return -EINVAL; in parse_raid_params()
1252 rs->ti->error = "'journal_dev' is an invalid parameter for this RAID type"; in parse_raid_params()
1253 return -EINVAL; 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()
1265 jdev->sectors = to_sector(i_size_read(jdev->bdev->bd_inode)); in parse_raid_params()
1266 if (jdev->sectors < MIN_RAID456_JOURNAL_SPACE) { in parse_raid_params()
1267 rs->ti->error = "No space for raid4/5/6 journal"; in parse_raid_params()
1268 return -ENOSPC; in parse_raid_params()
1270 rs->journal_dev.mode = R5C_JOURNAL_MODE_WRITE_THROUGH; in parse_raid_params()
1271 set_bit(Journal, &jdev->flags); in parse_raid_params()
1275 /* "journal_mode <mode>" ("journal_dev" mandatory!) */ 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()
1281 return -EINVAL; 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()
1285 return -EINVAL; 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()
1301 return -EINVAL; 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()
1312 return -EINVAL; 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()
1317 return -EINVAL; in parse_raid_params()
1320 rd = rs->dev + value; in parse_raid_params()
1321 clear_bit(In_sync, &rd->rdev.flags); in parse_raid_params()
1322 clear_bit(Faulty, &rd->rdev.flags); in parse_raid_params()
1323 rd->rdev.recovery_offset = 0; 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()
1328 return -EINVAL; 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()
1333 return -EINVAL; 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()
1342 return -EINVAL; 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()
1347 return -EINVAL; in parse_raid_params()
1351 * In device-mapper, we specify things in sectors, but in parse_raid_params()
1355 rs->ti->error = "Max write-behind limit out of range"; in parse_raid_params()
1356 return -EINVAL; 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()
1363 return -EINVAL; in parse_raid_params()
1366 rs->ti->error = "daemon sleep period out of range"; in parse_raid_params()
1367 return -EINVAL; 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()
1374 return -EINVAL; in parse_raid_params()
1379 rs->ti->error = "Bogus data_offset value"; in parse_raid_params()
1380 return -EINVAL; in parse_raid_params()
1382 rs->data_offset = value; in parse_raid_params()
1384 /* Define the +/-# of disks to add to/remove from the given raid set */ 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()
1387 return -EINVAL; in parse_raid_params()
1390 if (!__within_range(abs(value), 1, MAX_RAID_DEVICES - rt->minimal_devs)) { in parse_raid_params()
1391 rs->ti->error = "Too many delta_disk requested"; in parse_raid_params()
1392 return -EINVAL; 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()
1399 return -EINVAL; in parse_raid_params()
1403 rs->ti->error = "Inappropriate argument: stripe_cache"; in parse_raid_params()
1404 return -EINVAL; in parse_raid_params()
1408 rs->ti->error = "Bogus stripe cache entries value"; in parse_raid_params()
1409 return -EINVAL; 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()
1415 return -EINVAL; in parse_raid_params()
1419 rs->ti->error = "min_recovery_rate out of range"; in parse_raid_params()
1420 return -EINVAL; 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()
1426 return -EINVAL; in parse_raid_params()
1430 rs->ti->error = "max_recovery_rate out of range"; in parse_raid_params()
1431 return -EINVAL; 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()
1437 return -EINVAL; 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()
1445 return -EINVAL; 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()
1450 return -EINVAL; in parse_raid_params()
1456 rs->ti->error = "Unable to parse RAID parameter"; in parse_raid_params()
1457 return -EINVAL; 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()
1464 return -EINVAL; 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()
1471 return -EINVAL; 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()
1476 return -EINVAL; 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()
1482 return -EINVAL; in parse_raid_params()
1486 return -EINVAL; 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()
1494 return -EINVAL; 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()
1499 return -EINVAL; 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()
1511 return -EINVAL; in parse_raid_params()
1514 if ((rt->algorithm == ALGORITHM_RAID10_DEFAULT || in parse_raid_params()
1515 rt->algorithm == ALGORITHM_RAID10_NEAR) && 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()
1518 return -EINVAL; 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()
1537 struct mddev *mddev = &rs->md; in rs_set_raid456_stripe_cache()
1538 uint32_t min_stripes = max(mddev->chunk_sectors, mddev->new_chunk_sectors) / 2; 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()
1543 return -EINVAL; in rs_set_raid456_stripe_cache()
1552 conf = mddev->private; 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()
1555 return -EINVAL; in rs_set_raid456_stripe_cache()
1559 if (conf->min_nr_stripes != nr_stripes) { 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()
1575 return rs->md.raid_disks - rs->raid_type->parity_devs; in mddev_data_stripes()
1581 return rs->raid_disks - rs->raid_type->parity_devs; in rs_data_stripes()
1585 * Retrieve rdev->sectors from any valid raid device of @rs
1586 * to allow userpace to pass in arbitray "- -" device tupples.
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()
1595 if (!test_bit(Journal, &rdev->flags) && in __rdev_sectors()
1596 rdev->bdev && rdev->sectors) in __rdev_sectors()
1597 return rdev->sectors; in __rdev_sectors()
1609 rdev_for_each(rdev, &rs->md) in _check_data_dev_sectors()
1610 if (!test_bit(Journal, &rdev->flags) && rdev->bdev) { in _check_data_dev_sectors()
1611 ds = min(ds, to_sector(i_size_read(rdev->bdev->bd_inode))); 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()
1614 return -EINVAL; in _check_data_dev_sectors()
1627 struct mddev *mddev = &rs->md; in rs_set_dev_and_array_sectors()
1630 delta_disks = mddev->delta_disks; in rs_set_dev_and_array_sectors()
1633 delta_disks = rs->delta_disks; 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()
1644 return -EINVAL; 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()
1662 mddev->array_sectors = array_sectors; in rs_set_dev_and_array_sectors()
1663 mddev->dev_sectors = dev_sectors; 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()
1669 return -EINVAL; in rs_set_dev_and_array_sectors()
1672 /* Setup recovery on @rs */
1677 rs->md.recovery_cp = MaxSector; in rs_setup_recovery()
1681 * ensure proper parity and Q-Syndrome in rs_setup_recovery()
1684 rs->md.recovery_cp = dev_sectors; in rs_setup_recovery()
1686 * Other raid set types may skip recovery in rs_setup_recovery()
1690 rs->md.recovery_cp = test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags) in rs_setup_recovery()
1704 dm_table_event(rs->ti->table); in do_table_event()
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()
1720 return -EPERM; in rs_check_takeover()
1724 rs->ti->error = "Can't takeover reshaping raid set"; in rs_check_takeover()
1725 return -EPERM; in rs_check_takeover()
1728 switch (mddev->level) { in rs_check_takeover()
1730 /* raid0 -> raid1/5 with one disk */ in rs_check_takeover()
1731 if ((mddev->new_level == 1 || mddev->new_level == 5) && in rs_check_takeover()
1732 mddev->raid_disks == 1) in rs_check_takeover()
1735 /* raid0 -> raid10 */ in rs_check_takeover()
1736 if (mddev->new_level == 10 && in rs_check_takeover()
1737 !(rs->raid_disks % mddev->raid_disks)) in rs_check_takeover()
1740 /* raid0 with multiple disks -> raid4/5/6 */ in rs_check_takeover()
1741 if (__within_range(mddev->new_level, 4, 6) && in rs_check_takeover()
1742 mddev->new_layout == ALGORITHM_PARITY_N && in rs_check_takeover()
1743 mddev->raid_disks > 1) in rs_check_takeover()
1750 if (__is_raid10_offset(mddev->layout)) in rs_check_takeover()
1753 near_copies = __raid10_near_copies(mddev->layout); in rs_check_takeover()
1755 /* raid10* -> raid0 */ in rs_check_takeover()
1756 if (mddev->new_level == 0) { in rs_check_takeover()
1759 !(mddev->raid_disks % near_copies)) { in rs_check_takeover()
1760 mddev->raid_disks /= near_copies; in rs_check_takeover()
1761 mddev->delta_disks = mddev->raid_disks; in rs_check_takeover()
1767 __raid10_far_copies(mddev->layout) > 1) in rs_check_takeover()
1773 /* raid10_{near,far} -> raid1 */ in rs_check_takeover()
1774 if (mddev->new_level == 1 && in rs_check_takeover()
1775 max(near_copies, __raid10_far_copies(mddev->layout)) == mddev->raid_disks) in rs_check_takeover()
1778 /* raid10_{near,far} with 2 disks -> raid4/5 */ in rs_check_takeover()
1779 if (__within_range(mddev->new_level, 4, 5) && in rs_check_takeover()
1780 mddev->raid_disks == 2) in rs_check_takeover()
1785 /* raid1 with 2 disks -> raid4/5 */ in rs_check_takeover()
1786 if (__within_range(mddev->new_level, 4, 5) && in rs_check_takeover()
1787 mddev->raid_disks == 2) { in rs_check_takeover()
1788 mddev->degraded = 1; in rs_check_takeover()
1792 /* raid1 -> raid0 */ in rs_check_takeover()
1793 if (mddev->new_level == 0 && in rs_check_takeover()
1794 mddev->raid_disks == 1) in rs_check_takeover()
1797 /* raid1 -> raid10 */ in rs_check_takeover()
1798 if (mddev->new_level == 10) in rs_check_takeover()
1803 /* raid4 -> raid0 */ in rs_check_takeover()
1804 if (mddev->new_level == 0) in rs_check_takeover()
1807 /* raid4 -> raid1/5 with 2 disks */ in rs_check_takeover()
1808 if ((mddev->new_level == 1 || mddev->new_level == 5) && in rs_check_takeover()
1809 mddev->raid_disks == 2) in rs_check_takeover()
1812 /* raid4 -> raid5/6 with parity N */ in rs_check_takeover()
1813 if (__within_range(mddev->new_level, 5, 6) && in rs_check_takeover()
1814 mddev->layout == ALGORITHM_PARITY_N) in rs_check_takeover()
1819 /* raid5 with parity N -> raid0 */ in rs_check_takeover()
1820 if (mddev->new_level == 0 && in rs_check_takeover()
1821 mddev->layout == ALGORITHM_PARITY_N) in rs_check_takeover()
1824 /* raid5 with parity N -> raid4 */ in rs_check_takeover()
1825 if (mddev->new_level == 4 && in rs_check_takeover()
1826 mddev->layout == ALGORITHM_PARITY_N) in rs_check_takeover()
1829 /* raid5 with 2 disks -> raid1/4/10 */ in rs_check_takeover()
1830 if ((mddev->new_level == 1 || mddev->new_level == 4 || mddev->new_level == 10) && in rs_check_takeover()
1831 mddev->raid_disks == 2) in rs_check_takeover()
1834 /* raid5_* -> raid6_*_6 with Q-Syndrome N (e.g. raid5_ra -> raid6_ra_6 */ in rs_check_takeover()
1835 if (mddev->new_level == 6 && in rs_check_takeover()
1836 ((mddev->layout == ALGORITHM_PARITY_N && mddev->new_layout == ALGORITHM_PARITY_N) || in rs_check_takeover()
1837 … __within_range(mddev->new_layout, ALGORITHM_LEFT_ASYMMETRIC_6, ALGORITHM_RIGHT_SYMMETRIC_6))) in rs_check_takeover()
1842 /* raid6 with parity N -> raid0 */ in rs_check_takeover()
1843 if (mddev->new_level == 0 && in rs_check_takeover()
1844 mddev->layout == ALGORITHM_PARITY_N) in rs_check_takeover()
1847 /* raid6 with parity N -> raid4 */ in rs_check_takeover()
1848 if (mddev->new_level == 4 && in rs_check_takeover()
1849 mddev->layout == ALGORITHM_PARITY_N) in rs_check_takeover()
1852 /* raid6_*_n with Q-Syndrome N -> raid5_* */ in rs_check_takeover()
1853 if (mddev->new_level == 5 && in rs_check_takeover()
1854 ((mddev->layout == ALGORITHM_PARITY_N && mddev->new_layout == ALGORITHM_PARITY_N) || in rs_check_takeover()
1855 __within_range(mddev->new_layout, ALGORITHM_LEFT_ASYMMETRIC, ALGORITHM_RIGHT_SYMMETRIC))) in rs_check_takeover()
1862 rs->ti->error = "takeover not possible"; in rs_check_takeover()
1863 return -EINVAL; in rs_check_takeover()
1869 return rs->md.new_level != rs->md.level; in rs_takeover_requested()
1876 struct mddev *mddev = &rs->md; in rs_reshape_requested()
1884 change = mddev->new_layout != mddev->layout || in rs_reshape_requested()
1885 mddev->new_chunk_sectors != mddev->chunk_sectors || in rs_reshape_requested()
1886 rs->delta_disks; 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()
1899 !__is_raid10_far(mddev->new_layout) && in rs_reshape_requested()
1900 rs->delta_disks >= 0; in rs_reshape_requested()
1908 /* State flags for sb->flags */
1914 * Devices with this superblock should only ever be accessed via device-mapper.
1984 * up to 256 devices with the 1.9.0 on-disk metadata format
1986 __le64 extended_failed_devices[DISKS_ARRAY_ELEMS - 1];
1996 * - reshape function non-existent
1997 * - degraded set
1998 * - ongoing recovery
1999 * - ongoing reshape
2001 * Returns 0 if none or -EPERM if given constraint
2006 struct mddev *mddev = &rs->md; in rs_check_reshape()
2008 if (!mddev->pers || !mddev->pers->check_reshape) in rs_check_reshape()
2009 rs->ti->error = "Reshape not supported"; in rs_check_reshape()
2010 else if (mddev->degraded) in rs_check_reshape()
2011 rs->ti->error = "Can't reshape degraded raid set"; in rs_check_reshape()
2013 rs->ti->error = "Convert request on recovering raid set prohibited"; in rs_check_reshape()
2015 rs->ti->error = "raid set already reshaping!"; in rs_check_reshape()
2017 rs->ti->error = "Reshaping only supported for raid1/4/5/6/10"; in rs_check_reshape()
2021 return -EPERM; in rs_check_reshape()
2026 BUG_ON(!rdev->sb_page); in read_disk_sb()
2028 if (rdev->sb_loaded && !force_reload) in read_disk_sb()
2031 rdev->sb_loaded = 0; in read_disk_sb()
2033 if (!sync_page_io(rdev, 0, size, rdev->sb_page, REQ_OP_READ, 0, true)) { in read_disk_sb()
2035 rdev->raid_disk); in read_disk_sb()
2036 md_error(rdev->mddev, rdev); in read_disk_sb()
2037 set_bit(Faulty, &rdev->flags); in read_disk_sb()
2038 return -EIO; in read_disk_sb()
2041 rdev->sb_loaded = 1; in read_disk_sb()
2048 failed_devices[0] = le64_to_cpu(sb->failed_devices); in sb_retrieve_failed_devices()
2049 memset(failed_devices + 1, 0, sizeof(sb->extended_failed_devices)); in sb_retrieve_failed_devices()
2051 if (le32_to_cpu(sb->compat_features) & FEATURE_FLAG_SUPPORTS_V190) { in sb_retrieve_failed_devices()
2052 int i = ARRAY_SIZE(sb->extended_failed_devices); in sb_retrieve_failed_devices()
2054 while (i--) in sb_retrieve_failed_devices()
2055 failed_devices[i+1] = le64_to_cpu(sb->extended_failed_devices[i]); in sb_retrieve_failed_devices()
2061 int i = ARRAY_SIZE(sb->extended_failed_devices); in sb_update_failed_devices()
2063 sb->failed_devices = cpu_to_le64(failed_devices[0]); in sb_update_failed_devices()
2064 while (i--) in sb_update_failed_devices()
2065 sb->extended_failed_devices[i] = cpu_to_le64(failed_devices[i+1]); in sb_update_failed_devices()
2082 if (!rdev->meta_bdev) in super_sync()
2085 BUG_ON(!rdev->sb_page); in super_sync()
2087 sb = page_address(rdev->sb_page); in super_sync()
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()
2100 sb->magic = cpu_to_le32(DM_RAID_MAGIC); in super_sync()
2101 sb->compat_features = cpu_to_le32(FEATURE_FLAG_SUPPORTS_V190); in super_sync()
2103 sb->num_devices = cpu_to_le32(mddev->raid_disks); in super_sync()
2104 sb->array_position = cpu_to_le32(rdev->raid_disk); in super_sync()
2106 sb->events = cpu_to_le64(mddev->events); in super_sync()
2108 sb->disk_recovery_offset = cpu_to_le64(rdev->recovery_offset); in super_sync()
2109 sb->array_resync_offset = cpu_to_le64(mddev->recovery_cp); in super_sync()
2111 sb->level = cpu_to_le32(mddev->level); in super_sync()
2112 sb->layout = cpu_to_le32(mddev->layout); in super_sync()
2113 sb->stripe_sectors = cpu_to_le32(mddev->chunk_sectors); in super_sync()
2120 sb->new_level = cpu_to_le32(mddev->new_level); in super_sync()
2121 sb->new_layout = cpu_to_le32(mddev->new_layout); in super_sync()
2122 sb->new_stripe_sectors = cpu_to_le32(mddev->new_chunk_sectors); in super_sync()
2124 sb->delta_disks = cpu_to_le32(mddev->delta_disks); in super_sync()
2127 sb->reshape_position = cpu_to_le64(mddev->reshape_position); in super_sync()
2128 if (le64_to_cpu(sb->reshape_position) != MaxSector) { in super_sync()
2130 sb->flags |= cpu_to_le32(SB_FLAG_RESHAPE_ACTIVE); in super_sync()
2132 if (mddev->delta_disks < 0 || mddev->reshape_backwards) in super_sync()
2133 sb->flags |= cpu_to_le32(SB_FLAG_RESHAPE_BACKWARDS); in super_sync()
2136 sb->flags &= ~(cpu_to_le32(SB_FLAG_RESHAPE_ACTIVE|SB_FLAG_RESHAPE_BACKWARDS)); in super_sync()
2139 sb->array_sectors = cpu_to_le64(mddev->array_sectors); in super_sync()
2140 sb->data_offset = cpu_to_le64(rdev->data_offset); in super_sync()
2141 sb->new_data_offset = cpu_to_le64(rdev->new_data_offset); in super_sync()
2142 sb->sectors = cpu_to_le64(rdev->sectors); in super_sync()
2143 sb->incompat_features = cpu_to_le32(0); in super_sync()
2146 memset(sb + 1, 0, rdev->sb_size - sizeof(*sb)); in super_sync()
2155 * Return: 1 if use rdev, 0 if use refdev, -Exxx otherwise
2164 r = read_disk_sb(rdev, rdev->sb_size, false); in super_load()
2168 sb = page_address(rdev->sb_page); in super_load()
2175 if ((sb->magic != cpu_to_le32(DM_RAID_MAGIC)) || in super_load()
2176 (!test_bit(In_sync, &rdev->flags) && !rdev->recovery_offset)) { in super_load()
2177 super_sync(rdev->mddev, rdev); in super_load()
2179 set_bit(FirstUse, &rdev->flags); in super_load()
2180 sb->compat_features = cpu_to_le32(FEATURE_FLAG_SUPPORTS_V190); in super_load()
2183 set_bit(MD_SB_CHANGE_DEVS, &rdev->mddev->sb_flags); in super_load()
2192 events_sb = le64_to_cpu(sb->events); in super_load()
2194 refsb = page_address(refdev->sb_page); in super_load()
2195 events_refsb = le64_to_cpu(refsb->events); in super_load()
2204 struct mddev *mddev = &rs->md; in super_init_validation()
2212 sb = page_address(rdev->sb_page); in super_init_validation()
2213 events_sb = le64_to_cpu(sb->events); in super_init_validation()
2218 mddev->events = events_sb ? : 1; in super_init_validation()
2220 mddev->reshape_position = MaxSector; in super_init_validation()
2222 mddev->raid_disks = le32_to_cpu(sb->num_devices); in super_init_validation()
2223 mddev->level = le32_to_cpu(sb->level); in super_init_validation()
2224 mddev->layout = le32_to_cpu(sb->layout); in super_init_validation()
2225 mddev->chunk_sectors = le32_to_cpu(sb->stripe_sectors); in super_init_validation()
2231 if (le32_to_cpu(sb->compat_features) & FEATURE_FLAG_SUPPORTS_V190) { in super_init_validation()
2233 mddev->new_level = le32_to_cpu(sb->new_level); in super_init_validation()
2234 mddev->new_layout = le32_to_cpu(sb->new_layout); in super_init_validation()
2235 mddev->new_chunk_sectors = le32_to_cpu(sb->new_stripe_sectors); in super_init_validation()
2236 mddev->delta_disks = le32_to_cpu(sb->delta_disks); in super_init_validation()
2237 mddev->array_sectors = le64_to_cpu(sb->array_sectors); in super_init_validation()
2240 if (le32_to_cpu(sb->flags) & SB_FLAG_RESHAPE_ACTIVE) { in super_init_validation()
2241 if (test_bit(__CTR_FLAG_DELTA_DISKS, &rs->ctr_flags)) { in super_init_validation()
2243 return -EINVAL; in super_init_validation()
2246 if (mddev->delta_disks < 0 || in super_init_validation()
2247 (!mddev->delta_disks && (le32_to_cpu(sb->flags) & SB_FLAG_RESHAPE_BACKWARDS))) in super_init_validation()
2248 mddev->reshape_backwards = 1; in super_init_validation()
2250 mddev->reshape_backwards = 0; in super_init_validation()
2252 mddev->reshape_position = le64_to_cpu(sb->reshape_position); in super_init_validation()
2253 rs->raid_type = get_raid_type_by_ll(mddev->level, mddev->layout); in super_init_validation()
2260 struct raid_type *rt_cur = get_raid_type_by_ll(mddev->level, mddev->layout); in super_init_validation()
2261 struct raid_type *rt_new = get_raid_type_by_ll(mddev->new_level, mddev->new_layout); in super_init_validation()
2266 rt_cur->name, rt_new->name); in super_init_validation()
2269 return -EINVAL; in super_init_validation()
2272 if (mddev->layout != mddev->new_layout) { in super_init_validation()
2275 rt_cur->name, rt_new->name); in super_init_validation()
2278 le32_to_cpu(sb->layout), mddev->new_layout); in super_init_validation()
2280 if (mddev->chunk_sectors != mddev->new_chunk_sectors) in super_init_validation()
2282 mddev->chunk_sectors, mddev->new_chunk_sectors); 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()
2288 raid10_md_layout_to_format(mddev->layout), in super_init_validation()
2289 raid10_md_layout_to_copies(mddev->layout)); in super_init_validation()
2291 raid10_md_layout_to_format(mddev->new_layout), in super_init_validation()
2292 raid10_md_layout_to_copies(mddev->new_layout)); in super_init_validation()
2294 return -EINVAL; in super_init_validation()
2300 if (!test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags)) in super_init_validation()
2301 mddev->recovery_cp = le64_to_cpu(sb->array_resync_offset); in super_init_validation()
2306 * 1) The raid set is brand new - in which case, all of the in super_init_validation()
2310 * and the new device needs to be rebuilt - in which in super_init_validation()
2320 if (test_bit(Journal, &rdev->flags)) in super_init_validation()
2323 if (test_bit(FirstUse, &r->flags)) in super_init_validation()
2326 if (!test_bit(In_sync, &r->flags)) { in super_init_validation()
2328 r->raid_disk); in super_init_validation()
2331 if (test_bit(FirstUse, &r->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()
2342 set_bit(MD_ARRAY_FIRST_USE, &mddev->flags); in super_init_validation()
2344 new_devs != rs->delta_disks) { in super_init_validation()
2347 return -EINVAL; in super_init_validation()
2351 " a raid set with %u other first-time devices", in super_init_validation()
2353 return -EINVAL; in super_init_validation()
2358 return -EINVAL; in super_init_validation()
2359 } else if (!test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags) && rs_is_recovering(rs)) { in super_init_validation()
2360 DMERR("'rebuild' specified while raid set is not in-sync (recovery_cp=%llu)", in super_init_validation()
2361 (unsigned long long) mddev->recovery_cp); in super_init_validation()
2362 return -EINVAL; in super_init_validation()
2365 (unsigned long long) mddev->reshape_position); in super_init_validation()
2366 return -EINVAL; in super_init_validation()
2376 if (test_bit(Journal, &rdev->flags) || in super_init_validation()
2377 !r->sb_page) in super_init_validation()
2379 sb2 = page_address(r->sb_page); in super_init_validation()
2380 sb2->failed_devices = 0; in super_init_validation()
2381 memset(sb2->extended_failed_devices, 0, sizeof(sb2->extended_failed_devices)); in super_init_validation()
2384 * Check for any device re-ordering. in super_init_validation()
2386 if (!test_bit(FirstUse, &r->flags) && (r->raid_disk >= 0)) { in super_init_validation()
2387 role = le32_to_cpu(sb2->array_position); in super_init_validation()
2391 if (role != r->raid_disk) { in super_init_validation()
2392 if (rs_is_raid10(rs) && __is_raid10_near(mddev->layout)) { in super_init_validation()
2393 if (mddev->raid_disks % __raid10_near_copies(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()
2397 return -EINVAL; in super_init_validation()
2400 sb2->array_position = cpu_to_le32(r->raid_disk); 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()
2406 return -EINVAL; in super_init_validation()
2409 DMINFO("raid device #%d now at position #%d", role, r->raid_disk); in super_init_validation()
2413 * Partial recovery is performed on in super_init_validation()
2417 set_bit(Faulty, &r->flags); in super_init_validation()
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()
2432 sb = page_address(rdev->sb_page); in super_validate()
2435 * If mddev->events is not set, we know we have not yet initialized in super_validate()
2438 if (!mddev->events && super_init_validation(rs, rdev)) in super_validate()
2439 return -EINVAL; in super_validate()
2441 if (le32_to_cpu(sb->compat_features) && in super_validate()
2442 le32_to_cpu(sb->compat_features) != FEATURE_FLAG_SUPPORTS_V190) { in super_validate()
2443 rs->ti->error = "Unable to assemble array: Unknown flag(s) in compatible feature flags"; in super_validate()
2444 return -EINVAL; in super_validate()
2447 if (sb->incompat_features) { in super_validate()
2448 rs->ti->error = "Unable to assemble array: No incompatible feature flags supported yet"; in super_validate()
2449 return -EINVAL; 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()
2454 mddev->bitmap_info.default_offset = mddev->bitmap_info.offset; in super_validate()
2456 if (!test_and_clear_bit(FirstUse, &rdev->flags)) { in super_validate()
2462 if (le32_to_cpu(sb->compat_features) & FEATURE_FLAG_SUPPORTS_V190) in super_validate()
2463 rdev->sectors = le64_to_cpu(sb->sectors); in super_validate()
2465 rdev->recovery_offset = le64_to_cpu(sb->disk_recovery_offset); in super_validate()
2466 if (rdev->recovery_offset == MaxSector) in super_validate()
2467 set_bit(In_sync, &rdev->flags); in super_validate()
2469 * If no reshape in progress -> we're recovering single in super_validate()
2470 * disk(s) and have to set the device(s) to out-of-sync in super_validate()
2473 clear_bit(In_sync, &rdev->flags); /* Mandatory for recovery */ in super_validate()
2479 if (test_and_clear_bit(Faulty, &rdev->flags)) { in super_validate()
2480 rdev->recovery_offset = 0; in super_validate()
2481 clear_bit(In_sync, &rdev->flags); in super_validate()
2482 rdev->saved_raid_disk = rdev->raid_disk; in super_validate()
2485 /* Reshape support -> restore repective data offsets */ in super_validate()
2486 rdev->data_offset = le64_to_cpu(sb->data_offset); in super_validate()
2487 rdev->new_data_offset = le64_to_cpu(sb->new_data_offset); in super_validate()
2499 struct mddev *mddev = &rs->md; in analyse_superblocks()
2503 if (test_bit(Journal, &rdev->flags)) in analyse_superblocks()
2506 if (!rdev->meta_bdev) in analyse_superblocks()
2510 rdev->sb_start = 0; in analyse_superblocks()
2511 rdev->sb_size = bdev_logical_block_size(rdev->meta_bdev); in analyse_superblocks()
2512 if (rdev->sb_size < sizeof(struct dm_raid_superblock) || rdev->sb_size > PAGE_SIZE) { in analyse_superblocks()
2514 return -EINVAL; in analyse_superblocks()
2526 if (test_bit(__CTR_FLAG_SYNC, &rs->ctr_flags)) in analyse_superblocks()
2549 * mistakenly acting as if '- -' got passed into the constructor). in analyse_superblocks()
2554 rdev->raid_disk = rdev->saved_raid_disk = -1; in analyse_superblocks()
2566 rs->ti->error = "Unable to assemble array: Invalid superblocks"; in analyse_superblocks()
2568 return -EINVAL; in analyse_superblocks()
2571 rs->ti->error = "Insufficient redundancy to activate array"; in analyse_superblocks()
2572 return -EINVAL; in analyse_superblocks()
2576 if (!test_bit(Journal, &rdev->flags) && in analyse_superblocks()
2579 return -EINVAL; in analyse_superblocks()
2597 if (!test_bit(__CTR_FLAG_DATA_OFFSET, &rs->ctr_flags)) { 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()
2611 * - before reshape: data is at offset 0 and free space in rs_adjust_data_offsets()
2614 * - after reshape: data is at offset rs->data_offset != 0 on each component LV 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()
2623 * - before reshape: data is at offset rs->data_offset != 0 and in rs_adjust_data_offsets()
2626 * - after reshape: data is at offset 0 on each component LV in rs_adjust_data_offsets()
2628 data_offset = rs->data_offset; in rs_adjust_data_offsets()
2635 * - or - (data offset != 0) in rs_adjust_data_offsets()
2637 * Changing RAID layout or chunk size -> toggle offsets in rs_adjust_data_offsets()
2639 * - before reshape: data is at offset rs->data_offset 0 and in rs_adjust_data_offsets()
2641 * -or- in rs_adjust_data_offsets()
2642 * data is at offset rs->data_offset != 0 and in rs_adjust_data_offsets()
2645 * - after reshape: data is at offset 0 if it was at offset != 0 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()
2662 return -ENOSPC; in rs_adjust_data_offsets()
2667 * avoid false recovery positives in the constructor. 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()
2674 if (!test_bit(Journal, &rdev->flags)) { in rs_adjust_data_offsets()
2675 rdev->data_offset = data_offset; in rs_adjust_data_offsets()
2676 rdev->new_data_offset = new_data_offset; in rs_adjust_data_offsets()
2683 /* Userpace reordered disks -> adjust raid_disk indexes in @rs */
2689 rdev_for_each(rdev, &rs->md) { in __reorder_raid_disk_indexes()
2690 if (!test_bit(Journal, &rdev->flags)) { in __reorder_raid_disk_indexes()
2691 rdev->raid_disk = i++; in __reorder_raid_disk_indexes()
2692 rdev->saved_raid_disk = rdev->new_raid_disk = -1; in __reorder_raid_disk_indexes()
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()
2709 /* Userpace reordered disks -> adjust raid_disk indexes */ in rs_setup_takeover()
2712 /* raid0 -> raid10_far layout */ 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()
2716 /* raid1 -> raid10_near layout */ 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()
2720 return -EINVAL; in rs_setup_takeover()
2724 clear_bit(MD_ARRAY_FIRST_USE, &mddev->flags); in rs_setup_takeover()
2725 mddev->recovery_cp = MaxSector; in rs_setup_takeover()
2727 while (d--) { 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()
2731 clear_bit(In_sync, &rdev->flags); in rs_setup_takeover()
2732 clear_bit(Faulty, &rdev->flags); in rs_setup_takeover()
2733 mddev->recovery_cp = rdev->recovery_offset = 0; in rs_setup_takeover()
2735 set_bit(MD_ARRAY_FIRST_USE, &mddev->flags); in rs_setup_takeover()
2738 rdev->new_data_offset = new_data_offset; in rs_setup_takeover()
2748 struct mddev *mddev = &rs->md; in rs_prepare_reshape()
2751 if (rs->raid_disks != mddev->raid_disks && in rs_prepare_reshape()
2752 __is_raid10_near(mddev->layout) && 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()
2763 return -EINVAL; in rs_prepare_reshape()
2766 /* Userpace reordered disks to add/remove mirrors -> adjust raid_disk indexes */ 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()
2770 mddev->new_layout = mddev->layout; 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()
2790 return -EINVAL; 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()
2809 rdev_for_each(rdev, &rs->md) in _get_reshape_sectors()
2810 if (!test_bit(Journal, &rdev->flags)) { in _get_reshape_sectors()
2811 reshape_sectors = (rdev->data_offset > rdev->new_data_offset) ? in _get_reshape_sectors()
2812 rdev->data_offset - rdev->new_data_offset : in _get_reshape_sectors()
2813 rdev->new_data_offset - rdev->data_offset; in _get_reshape_sectors()
2817 return max(reshape_sectors, (sector_t) rs->data_offset); in _get_reshape_sectors()
2822 * - change raid layout
2823 * - change chunk size
2824 * - add disks
2825 * - remove disks
2832 struct mddev *mddev = &rs->md; in rs_setup_reshape()
2835 mddev->delta_disks = rs->delta_disks; in rs_setup_reshape()
2836 cur_raid_devs = mddev->raid_disks; in rs_setup_reshape()
2839 if (mddev->delta_disks && in rs_setup_reshape()
2840 mddev->layout != mddev->new_layout) { in rs_setup_reshape()
2841 DMINFO("Ignoring invalid layout change with delta_disks=%d", rs->delta_disks); in rs_setup_reshape()
2842 mddev->new_layout = mddev->layout; in rs_setup_reshape()
2848 * - in case of adding disk(s), array size has in rs_setup_reshape()
2854 * - in case of removing disk(s), array size in rs_setup_reshape()
2860 * - data_offset and new_data_offset are 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()
2872 clear_bit(In_sync, &rdev->flags); in rs_setup_reshape()
2875 * save_raid_disk needs to be -1, or recovery_offset will be set to 0 in rs_setup_reshape()
2878 rdev->saved_raid_disk = -1; in rs_setup_reshape()
2879 rdev->raid_disk = d; in rs_setup_reshape()
2881 rdev->sectors = mddev->dev_sectors; in rs_setup_reshape()
2882 rdev->recovery_offset = rs_is_raid1(rs) ? 0 : MaxSector; in rs_setup_reshape()
2885 mddev->reshape_backwards = 0; /* adding disk(s) -> forward reshape */ 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()
2890 mddev->reshape_backwards = 1; /* removing disk(s) -> backward reshape */ in rs_setup_reshape()
2895 * Reshape layout (e.g. raid5_ls -> raid5_n) and/or chunk size: in rs_setup_reshape()
2897 * keeping number of disks and do layout change -> in rs_setup_reshape()
2901 * - free space upfront -> reshape forward in rs_setup_reshape()
2903 * - free space at the end -> reshape backward in rs_setup_reshape()
2912 * add disk(s) -> begin in rs_setup_reshape()
2913 * remove disk(s)-> end in rs_setup_reshape()
2915 mddev->reshape_backwards = rs->dev[0].rdev.data_offset ? 0 : 1; in rs_setup_reshape()
2922 if (!mddev->reshape_backwards) in rs_setup_reshape()
2923 rdev_for_each(rdev, &rs->md) in rs_setup_reshape()
2924 if (!test_bit(Journal, &rdev->flags)) in rs_setup_reshape()
2925 rdev->sectors += reshape_sectors; in rs_setup_reshape()
2938 struct dm_target *ti = rs->ti; 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()
2958 DMERR("Set dm-raid.devices_handle_discard_safely=Y to override."); in configure_discard_support()
2964 ti->num_discard_bios = 1; in configure_discard_support()
2998 ti->error = "No arguments"; in raid_ctr()
2999 return -EINVAL; in raid_ctr()
3004 ti->error = "Unrecognised raid_type"; in raid_ctr()
3005 return -EINVAL; in raid_ctr()
3009 if (dm_read_arg_group(_args, &as, &num_raid_params, &ti->error)) in raid_ctr()
3010 return -EINVAL; in raid_ctr()
3015 _args[1].max = (as_nrd.argc - 1) / 2; in raid_ctr()
3016 if (dm_read_arg(_args + 1, &as_nrd, &num_raid_devs, &ti->error)) in raid_ctr()
3017 return -EINVAL; in raid_ctr()
3020 ti->error = "Invalid number of supplied raid devices"; in raid_ctr()
3021 return -EINVAL; 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()
3063 /* All in-core metadata now as of current superblocks after calling analyse_superblocks() */ in raid_ctr()
3064 sb_array_sectors = rs->md.array_sectors; in raid_ctr()
3067 ti->error = "Invalid rdev size"; in raid_ctr()
3068 r = -EINVAL; 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()
3082 ti->num_flush_bios = 1; in raid_ctr()
3093 if (test_bit(MD_ARRAY_FIRST_USE, &rs->md.flags)) { in raid_ctr()
3094 /* A new raid6 set has to be recovered to ensure proper parity and Q-Syndrome */ in raid_ctr()
3096 test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags)) { in raid_ctr()
3097 ti->error = "'nosync' not allowed for new raid6 set"; in raid_ctr()
3098 r = -EINVAL; in raid_ctr()
3102 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in raid_ctr()
3110 ti->error = "Can't resize a reshaping raid set"; in raid_ctr()
3111 r = -EPERM; in raid_ctr()
3117 ti->error = "Can't takeover a reshaping raid set"; in raid_ctr()
3118 r = -EPERM; in raid_ctr()
3123 if (test_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags)) { in raid_ctr()
3124 ti->error = "Can't takeover a journaled raid4/5/6 set"; in raid_ctr()
3125 r = -EPERM; in raid_ctr()
3134 * one, prohibit requesting recovery, allow the raid in raid_ctr()
3145 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in raid_ctr()
3146 /* Takeover ain't recovery, so disable recovery */ 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()
3160 ti->error = "Can't reshape a journaled raid4/5/6 set"; in raid_ctr()
3161 r = -EPERM; in raid_ctr()
3165 /* Out-of-place space has to be available to allow for a reshape unless raid1! */ in raid_ctr()
3178 /* Reshaping ain't recovery, so disable recovery */ in raid_ctr()
3184 /* May not set recovery when a device rebuild is requested */ 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()
3189 } else if (test_bit(RT_FLAG_RS_GROW, &rs->runtime_flags)) { 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()
3216 /* Start raid set read-only and assumed clean to change in raid_resume() */ 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()
3228 ti->error = "Failed to run raid array"; in raid_ctr()
3229 mddev_unlock(&rs->md); in raid_ctr()
3233 r = md_start(&rs->md); in raid_ctr()
3236 ti->error = "Failed to start raid array"; in raid_ctr()
3237 mddev_unlock(&rs->md); in raid_ctr()
3241 /* If raid4/5/6 journal mode explicitly requested (only possible with journal dev) -> set it */ 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()
3245 ti->error = "Failed to set raid4/5/6 journal 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()
3262 if (test_bit(RT_FLAG_RESHAPE_RS, &rs->runtime_flags)) { 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()
3273 ti->error = "Reshape check failed"; in raid_ctr()
3282 mddev_unlock(&rs->md); in raid_ctr()
3289 md_stop(&rs->md); in raid_ctr()
3298 struct raid_set *rs = ti->private; in raid_dtr()
3300 md_stop(&rs->md); in raid_dtr()
3306 struct raid_set *rs = ti->private; in raid_map()
3307 struct mddev *mddev = &rs->md; in raid_map()
3310 * If we're reshaping to add disk(s)), ti->len and in raid_map()
3311 * mddev->array_sectors will differ during the process in raid_map()
3312 * (ti->len > mddev->array_sectors), so we have to requeue in raid_map()
3313 * bios with addresses > mddev->array_sectors here or in raid_map()
3317 if (unlikely(bio_end_sector(bio) > mddev->array_sectors)) in raid_map()
3340 return __within_range(state, 0, ARRAY_SIZE(sync_strs) - 1) ? sync_strs[state] : "undef"; in sync_str()
3343 /* Return enum sync_state for @mddev derived from @recovery flags */
3344 static enum sync_state decipher_sync_action(struct mddev *mddev, unsigned long recovery) in decipher_sync_action() argument
3346 if (test_bit(MD_RECOVERY_FROZEN, &recovery)) in decipher_sync_action()
3350 if (!test_bit(MD_RECOVERY_DONE, &recovery) && in decipher_sync_action()
3351 (test_bit(MD_RECOVERY_RUNNING, &recovery) || in decipher_sync_action()
3352 (!mddev->ro && test_bit(MD_RECOVERY_NEEDED, &recovery)))) { in decipher_sync_action()
3353 if (test_bit(MD_RECOVERY_RESHAPE, &recovery)) in decipher_sync_action()
3356 if (test_bit(MD_RECOVERY_SYNC, &recovery)) { in decipher_sync_action()
3357 if (!test_bit(MD_RECOVERY_REQUESTED, &recovery)) in decipher_sync_action()
3359 if (test_bit(MD_RECOVERY_CHECK, &recovery)) in decipher_sync_action()
3364 if (test_bit(MD_RECOVERY_RECOVER, &recovery)) in decipher_sync_action()
3367 if (mddev->reshape_position != MaxSector) in decipher_sync_action()
3380 * 'a' = Alive but not in-sync raid set component _or_ alive raid4/5/6 'write_back' journal device
3381 * 'A' = Alive and in-sync raid set component _or_ alive raid4/5/6 'write_through' journal device
3382 * '-' = Non-existing device (i.e. uspace passed '- -' into the ctr)
3386 if (!rdev->bdev) in __raid_dev_status()
3387 return "-"; in __raid_dev_status()
3388 else if (test_bit(Faulty, &rdev->flags)) in __raid_dev_status()
3390 else if (test_bit(Journal, &rdev->flags)) in __raid_dev_status()
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()
3394 !test_bit(In_sync, &rdev->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()
3412 set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); in rs_get_progress()
3415 if (state == st_idle && !test_bit(MD_RECOVERY_INTR, &recovery)) in rs_get_progress()
3416 r = mddev->recovery_cp; in rs_get_progress()
3418 r = mddev->curr_resync_completed; in rs_get_progress()
3425 if (test_bit(MD_RECOVERY_RECOVER, &recovery)) in rs_get_progress()
3426 set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); in rs_get_progress()
3433 * Already retrieved recovery offset from curr_resync_completed above. 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()
3453 else if (test_bit(MD_RECOVERY_NEEDED, &recovery)) in rs_get_progress()
3455 * We are idle and recovery is needed, prevent 'A' chars race in rs_get_progress()
3456 * caused by components still set to in-sync by constructor. 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()
3471 if (!test_bit(Journal, &rdev->flags) && in rs_get_progress()
3472 !test_bit(In_sync, &rdev->flags)) { in rs_get_progress()
3473 clear_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); in rs_get_progress()
3482 /* Helper to return @dev name or "-" if !@dev */
3485 return dev ? dev->name : "-"; in __get_dev_name()
3491 struct raid_set *rs = ti->private; in raid_status()
3492 struct mddev *mddev = &rs->md; in raid_status()
3493 struct r5conf *conf = mddev->private; in raid_status()
3494 int i, max_nr_stripes = conf ? conf->max_nr_stripes : 0; in raid_status()
3495 unsigned long recovery; in raid_status() local
3506 rt = get_raid_type_by_ll(mddev->new_level, mddev->new_layout); in raid_status()
3510 DMEMIT("%s %d ", rt->name, mddev->raid_disks); in raid_status()
3515 resync_max_sectors = test_bit(RT_FLAG_RS_PRERESUMED, &rs->runtime_flags) ? in raid_status()
3516 mddev->resync_max_sectors : mddev->dev_sectors; in raid_status()
3517 recovery = rs->md.recovery; in raid_status()
3518 state = decipher_sync_action(mddev, recovery); in raid_status()
3519 progress = rs_get_progress(rs, recovery, state, resync_max_sectors); in raid_status()
3520 resync_mismatches = (mddev->last_sync_action && !strcasecmp(mddev->last_sync_action, "check")) ? in raid_status()
3521 atomic64_read(&mddev->resync_mismatches) : 0; in raid_status()
3523 /* HM FIXME: do we want another state char for raid0? It shows 'D'/'A'/'-' now */ 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()
3528 * In-sync/Reshape ratio: in raid_status()
3529 * The in-sync ratio shows the progress of: in raid_status()
3530 * - Initializing the raid set in raid_status()
3531 * - Rebuilding a subset of devices of the raid set in raid_status()
3546 * See Documentation/admin-guide/device-mapper/dm-raid.rst for 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()
3609 mddev->bitmap_info.daemon_sleep); in raid_status()
3610 if (test_bit(__CTR_FLAG_MIN_RECOVERY_RATE, &rs->ctr_flags)) in raid_status()
3612 mddev->sync_speed_min); in raid_status()
3613 if (test_bit(__CTR_FLAG_MAX_RECOVERY_RATE, &rs->ctr_flags)) in raid_status()
3615 mddev->sync_speed_max); 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()
3623 mddev->bitmap_info.max_write_behind); 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()
3629 (unsigned long long) to_sector(mddev->bitmap_info.chunksize)); in raid_status()
3630 if (test_bit(__CTR_FLAG_RAID10_COPIES, &rs->ctr_flags)) in raid_status()
3632 raid10_md_layout_to_copies(mddev->layout)); in raid_status()
3633 if (test_bit(__CTR_FLAG_RAID10_FORMAT, &rs->ctr_flags)) in raid_status()
3635 raid10_md_layout_to_format(mddev->layout)); 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()
3659 struct mddev *mddev = &rs->md; in raid_message()
3661 if (!mddev->pers || !mddev->pers->sync_request) in raid_message()
3662 return -EINVAL; in raid_message()
3665 set_bit(MD_RECOVERY_FROZEN, &mddev->recovery); in raid_message()
3667 clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery); in raid_message()
3670 if (mddev->sync_thread) { in raid_message()
3671 set_bit(MD_RECOVERY_INTR, &mddev->recovery); in raid_message()
3674 } else if (decipher_sync_action(mddev, mddev->recovery) != st_idle) in raid_message()
3675 return -EBUSY; in raid_message()
3679 set_bit(MD_RECOVERY_RECOVER, &mddev->recovery); in raid_message()
3682 set_bit(MD_RECOVERY_CHECK, &mddev->recovery); in raid_message()
3683 set_bit(MD_RECOVERY_REQUESTED, &mddev->recovery); in raid_message()
3684 set_bit(MD_RECOVERY_SYNC, &mddev->recovery); in raid_message()
3686 set_bit(MD_RECOVERY_REQUESTED, &mddev->recovery); in raid_message()
3687 set_bit(MD_RECOVERY_SYNC, &mddev->recovery); in raid_message()
3689 return -EINVAL; in raid_message()
3691 if (mddev->ro == 2) { in raid_message()
3693 * canceling read-auto mode in raid_message()
3695 mddev->ro = 0; in raid_message()
3696 if (!mddev->suspended && mddev->sync_thread) in raid_message()
3697 md_wakeup_thread(mddev->sync_thread); in raid_message()
3699 set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); in raid_message()
3700 if (!mddev->suspended && mddev->thread) in raid_message()
3701 md_wakeup_thread(mddev->thread); in raid_message()
3709 struct raid_set *rs = ti->private; in raid_iterate_devices()
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()
3727 unsigned int chunk_size_bytes = to_bytes(rs->md.chunk_sectors); in raid_io_hints()
3737 limits->discard_granularity = max(chunk_size_bytes, in raid_io_hints()
3738 limits->discard_granularity); in raid_io_hints()
3739 limits->max_discard_sectors = min_not_zero(rs->md.chunk_sectors, in raid_io_hints()
3740 limits->max_discard_sectors); in raid_io_hints()
3746 struct raid_set *rs = ti->private; in raid_postsuspend()
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()
3766 struct mddev *mddev = &rs->md; in attempt_restore_of_faulty_devices()
3770 if (!mddev->pers || !mddev->pers->hot_add_disk || !mddev->pers->hot_remove_disk) in attempt_restore_of_faulty_devices()
3775 for (i = 0; i < mddev->raid_disks; i++) { in attempt_restore_of_faulty_devices()
3776 r = &rs->dev[i].rdev; in attempt_restore_of_faulty_devices()
3777 /* HM FIXME: enhance journal device recovery processing */ in attempt_restore_of_faulty_devices()
3778 if (test_bit(Journal, &r->flags)) in attempt_restore_of_faulty_devices()
3781 if (test_bit(Faulty, &r->flags) && in attempt_restore_of_faulty_devices()
3782 r->meta_bdev && !read_disk_sb(r, r->sb_size, true)) { in attempt_restore_of_faulty_devices()
3785 rs->raid_type->name, i); in attempt_restore_of_faulty_devices()
3793 * '>= 0' - meaning we must call this function in attempt_restore_of_faulty_devices()
3796 flags = r->flags; in attempt_restore_of_faulty_devices()
3797 clear_bit(In_sync, &r->flags); /* Mandatory for hot remove. */ in attempt_restore_of_faulty_devices()
3798 if (r->raid_disk >= 0) { in attempt_restore_of_faulty_devices()
3799 if (mddev->pers->hot_remove_disk(mddev, r)) { in attempt_restore_of_faulty_devices()
3801 r->flags = flags; in attempt_restore_of_faulty_devices()
3805 r->raid_disk = r->saved_raid_disk = i; in attempt_restore_of_faulty_devices()
3807 clear_bit(Faulty, &r->flags); in attempt_restore_of_faulty_devices()
3808 clear_bit(WriteErrorSeen, &r->flags); in attempt_restore_of_faulty_devices()
3810 if (mddev->pers->hot_add_disk(mddev, r)) { in attempt_restore_of_faulty_devices()
3812 r->raid_disk = r->saved_raid_disk = -1; in attempt_restore_of_faulty_devices()
3813 r->flags = flags; in attempt_restore_of_faulty_devices()
3815 clear_bit(In_sync, &r->flags); in attempt_restore_of_faulty_devices()
3816 r->recovery_offset = 0; in attempt_restore_of_faulty_devices()
3827 rdev_for_each(r, &rs->md) { in attempt_restore_of_faulty_devices()
3828 if (test_bit(Journal, &r->flags)) in attempt_restore_of_faulty_devices()
3831 sb = page_address(r->sb_page); in attempt_restore_of_faulty_devices()
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()
3860 struct mddev *mddev = &rs->md; in rs_update_sbs()
3861 int ro = mddev->ro; in rs_update_sbs()
3863 set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags); in rs_update_sbs()
3864 mddev->ro = 0; in rs_update_sbs()
3866 mddev->ro = ro; in rs_update_sbs()
3871 * (e.g. raid6_zr -> raid6_nc), changes stripe size, adds/removes
3879 struct mddev *mddev = &rs->md; in rs_start_reshape()
3880 struct md_personality *pers = mddev->pers; in rs_start_reshape()
3883 set_bit(MD_RECOVERY_WAIT, &mddev->recovery); in rs_start_reshape()
3892 * May as well already kick the reshape off so that * pers->start_reshape() becomes optional. in rs_start_reshape()
3894 r = pers->check_reshape(mddev); in rs_start_reshape()
3896 rs->ti->error = "pers->check_reshape() failed"; in rs_start_reshape()
3904 if (pers->start_reshape) { in rs_start_reshape()
3905 r = pers->start_reshape(mddev); in rs_start_reshape()
3907 rs->ti->error = "pers->start_reshape() failed"; in rs_start_reshape()
3925 struct raid_set *rs = ti->private; in raid_preresume()
3926 struct mddev *mddev = &rs->md; in raid_preresume()
3928 /* This is a resume after a suspend of the set -> it's already started. */ 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()
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()
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()
3961 r = md_bitmap_resize(mddev->bitmap, mddev->dev_sectors, chunksize, 0); in raid_preresume()
3968 set_bit(MD_RECOVERY_FROZEN, &mddev->recovery); in raid_preresume()
3969 if (mddev->recovery_cp && mddev->recovery_cp < MaxSector) { in raid_preresume()
3970 set_bit(MD_RECOVERY_REQUESTED, &mddev->recovery); in raid_preresume()
3971 mddev->resync_min = mddev->recovery_cp; in raid_preresume()
3972 if (test_bit(RT_FLAG_RS_GROW, &rs->runtime_flags)) in raid_preresume()
3973 mddev->resync_max_sectors = mddev->dev_sectors; in raid_preresume()
3977 if (test_bit(RT_FLAG_RESHAPE_RS, &rs->runtime_flags)) { in raid_preresume()
3993 struct raid_set *rs = ti->private; in raid_resume()
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()
4005 if (test_and_clear_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags)) { in raid_resume()
4007 if (mddev->delta_disks < 0) in raid_resume()
4011 clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery); in raid_resume()
4012 mddev->ro = 0; in raid_resume()
4013 mddev->in_sync = 0; in raid_resume()
4057 MODULE_ALIAS("dm-raid0");
4058 MODULE_ALIAS("dm-raid1");
4059 MODULE_ALIAS("dm-raid10");
4060 MODULE_ALIAS("dm-raid4");
4061 MODULE_ALIAS("dm-raid5");
4062 MODULE_ALIAS("dm-raid6");
4063 MODULE_AUTHOR("Neil Brown <dm-devel@redhat.com>");
4064 MODULE_AUTHOR("Heinz Mauelshagen <dm-devel@redhat.com>");