Lines Matching +full:mode +full:- +full:recovery
1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2010-2011 Neil Brown
4 * Copyright (C) 2010-2018 Red Hat, Inc. All rights reserved.
16 #include "md-bitmap.h"
18 #include <linux/device-mapper.h>
21 #define MAX_RAID_DEVICES 253 /* md-raid kernel limit */
36 * The following flags are used by dm-raid to set up the array state.
45 * ti->len and give more flexibility in altering size and
51 * |--------- Physical Device ---------|
52 * |- meta_dev -|------ data_dev ------|
60 * Bits for establishing rs->ctr_flags
86 #define __CTR_FLAG_JOURNAL_MODE 16 /* 2 */ /* Only with raid4/5/6 (journal mode)! */
89 * Flags for rs->ctr_flags field.
171 * that both parity and q-syndrome are being written properly with
200 * Flags for rs->runtime_flags field
218 #define DISKS_ARRAY_ELEMS ((MAX_RAID_DEVICES + (sizeof(uint64_t) * 8 - 1)) / sizeof(uint64_t) / 8)
254 int mode; member
262 struct mddev *mddev = &rs->md; in rs_config_backup()
264 l->new_level = mddev->new_level; in rs_config_backup()
265 l->new_layout = mddev->new_layout; in rs_config_backup()
266 l->new_chunk_sectors = mddev->new_chunk_sectors; in rs_config_backup()
271 struct mddev *mddev = &rs->md; in rs_config_restore()
273 mddev->new_level = l->new_level; in rs_config_restore()
274 mddev->new_layout = l->new_layout; in rs_config_restore()
275 mddev->new_chunk_sectors = l->new_chunk_sectors; in rs_config_restore()
351 while (anf-- > __arg_name_flags) in dm_raid_arg_name_by_flag()
352 if (flag & anf->flag) in dm_raid_arg_name_by_flag()
353 return anf->name; in dm_raid_arg_name_by_flag()
361 /* Define correlation of raid456 journal cache modes and dm-raid target line parameters */
363 const int mode; member
370 /* Return MD raid4/5/6 journal mode for dm @journal_mode one */
371 static int dm_raid_journal_mode_to_md(const char *mode) in dm_raid_journal_mode_to_md() argument
375 while (m--) in dm_raid_journal_mode_to_md()
376 if (!strcasecmp(mode, _raid456_journal_mode[m].param)) in dm_raid_journal_mode_to_md()
377 return _raid456_journal_mode[m].mode; in dm_raid_journal_mode_to_md()
379 return -EINVAL; in dm_raid_journal_mode_to_md()
382 /* Return dm-raid raid4/5/6 journal mode string for @mode */
383 static const char *md_journal_mode_to_dm_raid(const int mode) in md_journal_mode_to_dm_raid() argument
387 while (m--) in md_journal_mode_to_dm_raid()
388 if (mode == _raid456_journal_mode[m].mode) in md_journal_mode_to_dm_raid()
402 return !rs->md.level; in rs_is_raid0()
408 return rs->md.level == 1; in rs_is_raid1()
414 return rs->md.level == 10; in rs_is_raid10()
420 return rs->md.level == 6; in rs_is_raid6()
426 return __within_range(rs->md.level, 4, 6); in rs_is_raid456()
434 (rs_is_raid10(rs) && !__is_raid10_far(rs->md.new_layout)); in rs_is_reshapable()
440 return rs->md.recovery_cp < rs->md.dev_sectors; in rs_is_recovering()
446 return rs->md.reshape_position != MaxSector; in rs_is_reshaping()
456 return !rt->level; in rt_is_raid0()
462 return rt->level == 1; in rt_is_raid1()
468 return rt->level == 10; in rt_is_raid10()
474 return __within_range(rt->level, 4, 5); in rt_is_raid45()
480 return rt->level == 6; in rt_is_raid6()
486 return __within_range(rt->level, 4, 6); in rt_is_raid456()
493 if (rt_is_raid0(rs->raid_type)) in __valid_flags()
495 else if (rt_is_raid1(rs->raid_type)) in __valid_flags()
497 else if (rt_is_raid10(rs->raid_type)) in __valid_flags()
499 else if (rt_is_raid45(rs->raid_type)) in __valid_flags()
501 else if (rt_is_raid6(rs->raid_type)) in __valid_flags()
514 if (rs->ctr_flags & ~__valid_flags(rs)) { in rs_check_for_valid_flags()
515 rs->ti->error = "Invalid flags combination"; in rs_check_for_valid_flags()
516 return -EINVAL; in rs_check_for_valid_flags()
589 return -EINVAL; in raid10_name_to_format()
611 * -> disable it for now in the definition above in raid10_format_to_md_layout()
620 if (!test_bit(__CTR_FLAG_RAID10_USE_NEAR_SETS, &rs->ctr_flags)) in raid10_format_to_md_layout()
625 if (!test_bit(__CTR_FLAG_RAID10_USE_NEAR_SETS, &rs->ctr_flags)) in raid10_format_to_md_layout()
629 return -EINVAL; in raid10_format_to_md_layout()
638 if (rtp->level == 10) { in __got_raid10()
639 switch (rtp->algorithm) { in __got_raid10()
660 while (rtp-- > raid_types) in get_raid_type()
661 if (!strcasecmp(rtp->name, name)) in get_raid_type()
672 while (rtp-- > raid_types) { in get_raid_type_by_ll()
674 if (rtp->level == level && in get_raid_type_by_ll()
675 (__got_raid10(rtp, layout) || rtp->algorithm == layout)) in get_raid_type_by_ll()
685 struct mddev *mddev = &rs->md; in rs_set_rdev_sectors()
689 * raid10 sets rdev->sector to the device size, which in rs_set_rdev_sectors()
690 * is unintended in case of out-of-place reshaping in rs_set_rdev_sectors()
693 if (!test_bit(Journal, &rdev->flags)) in rs_set_rdev_sectors()
694 rdev->sectors = mddev->dev_sectors; in rs_set_rdev_sectors()
702 struct gendisk *gendisk = dm_disk(dm_table_get_md(rs->ti->table)); in rs_set_capacity()
704 set_capacity_and_notify(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 if (mddev_init(&rs->md)) { in raid_set_alloc()
754 ti->error = "Cannot initialize raid context"; in raid_set_alloc()
755 return ERR_PTR(-ENOMEM); in raid_set_alloc()
758 rs->raid_disks = raid_devs; in raid_set_alloc()
759 rs->delta_disks = 0; in raid_set_alloc()
761 rs->ti = ti; in raid_set_alloc()
762 rs->raid_type = raid_type; in raid_set_alloc()
763 rs->stripe_cache_entries = 256; in raid_set_alloc()
764 rs->md.raid_disks = raid_devs; in raid_set_alloc()
765 rs->md.level = raid_type->level; in raid_set_alloc()
766 rs->md.new_level = rs->md.level; in raid_set_alloc()
767 rs->md.layout = raid_type->algorithm; in raid_set_alloc()
768 rs->md.new_layout = rs->md.layout; in raid_set_alloc()
769 rs->md.delta_disks = 0; in raid_set_alloc()
770 rs->md.recovery_cp = MaxSector; in raid_set_alloc()
773 md_rdev_init(&rs->dev[i].rdev); in raid_set_alloc()
777 * rs->md.persistent in raid_set_alloc()
778 * rs->md.external in raid_set_alloc()
779 * rs->md.chunk_sectors in raid_set_alloc()
780 * rs->md.new_chunk_sectors in raid_set_alloc()
781 * rs->md.dev_sectors in raid_set_alloc()
792 if (rs->journal_dev.dev) { in raid_set_free()
793 md_rdev_clear(&rs->journal_dev.rdev); in raid_set_free()
794 dm_put_device(rs->ti, rs->journal_dev.dev); in raid_set_free()
797 for (i = 0; i < rs->raid_disks; i++) { in raid_set_free()
798 if (rs->dev[i].meta_dev) in raid_set_free()
799 dm_put_device(rs->ti, rs->dev[i].meta_dev); in raid_set_free()
800 md_rdev_clear(&rs->dev[i].rdev); in raid_set_free()
801 if (rs->dev[i].data_dev) in raid_set_free()
802 dm_put_device(rs->ti, rs->dev[i].data_dev); in raid_set_free()
805 mddev_destroy(&rs->md); in raid_set_free()
811 * <meta_dev>: meta device name or '-' if missing
812 * <data_dev>: data device name or '-' if missing
815 * - -
816 * - <data_dev>
820 * <meta_dev> -
836 return -EINVAL; in parse_dev_params()
838 for (i = 0; i < rs->raid_disks; i++) { in parse_dev_params()
839 rs->dev[i].rdev.raid_disk = i; in parse_dev_params()
841 rs->dev[i].meta_dev = NULL; in parse_dev_params()
842 rs->dev[i].data_dev = NULL; in parse_dev_params()
848 rs->dev[i].rdev.data_offset = 0; in parse_dev_params()
849 rs->dev[i].rdev.new_data_offset = 0; in parse_dev_params()
850 rs->dev[i].rdev.mddev = &rs->md; in parse_dev_params()
854 return -EINVAL; in parse_dev_params()
856 if (strcmp(arg, "-")) { in parse_dev_params()
857 r = dm_get_device(rs->ti, arg, dm_table_get_mode(rs->ti->table), in parse_dev_params()
858 &rs->dev[i].meta_dev); in parse_dev_params()
860 rs->ti->error = "RAID metadata device lookup failure"; in parse_dev_params()
864 rs->dev[i].rdev.sb_page = alloc_page(GFP_KERNEL); in parse_dev_params()
865 if (!rs->dev[i].rdev.sb_page) { in parse_dev_params()
866 rs->ti->error = "Failed to allocate superblock page"; in parse_dev_params()
867 return -ENOMEM; in parse_dev_params()
873 return -EINVAL; in parse_dev_params()
875 if (!strcmp(arg, "-")) { in parse_dev_params()
876 if (!test_bit(In_sync, &rs->dev[i].rdev.flags) && in parse_dev_params()
877 (!rs->dev[i].rdev.recovery_offset)) { in parse_dev_params()
878 rs->ti->error = "Drive designated for rebuild not specified"; in parse_dev_params()
879 return -EINVAL; in parse_dev_params()
882 if (rs->dev[i].meta_dev) { in parse_dev_params()
883 rs->ti->error = "No data device supplied with metadata device"; in parse_dev_params()
884 return -EINVAL; in parse_dev_params()
890 r = dm_get_device(rs->ti, arg, dm_table_get_mode(rs->ti->table), in parse_dev_params()
891 &rs->dev[i].data_dev); in parse_dev_params()
893 rs->ti->error = "RAID device lookup failure"; in parse_dev_params()
897 if (rs->dev[i].meta_dev) { in parse_dev_params()
899 rs->dev[i].rdev.meta_bdev = rs->dev[i].meta_dev->bdev; in parse_dev_params()
901 rs->dev[i].rdev.bdev = rs->dev[i].data_dev->bdev; in parse_dev_params()
902 list_add_tail(&rs->dev[i].rdev.same_set, &rs->md.disks); in parse_dev_params()
903 if (!test_bit(In_sync, &rs->dev[i].rdev.flags)) in parse_dev_params()
907 if (rs->journal_dev.dev) in parse_dev_params()
908 list_add_tail(&rs->journal_dev.rdev.same_set, &rs->md.disks); in parse_dev_params()
911 rs->md.external = 0; in parse_dev_params()
912 rs->md.persistent = 1; in parse_dev_params()
913 rs->md.major_version = 2; in parse_dev_params()
914 } else if (rebuild && !rs->md.recovery_cp) { in parse_dev_params()
917 * is in-sync or not - we must assume it is not. Therefore, in parse_dev_params()
920 * Even if there is metadata, the on-disk information may in parse_dev_params()
921 * indicate that the array is not in-sync and it will then in parse_dev_params()
926 rs->ti->error = "Unable to rebuild drive while array is not in-sync"; in parse_dev_params()
927 return -EINVAL; in parse_dev_params()
938 * Set rs->md.bitmap_info.chunksize (which really refers to 'region size').
939 * Ensure that (ti->len/region_size < 2^21) - required by MD bitmap.
941 * Returns: 0 on success, -EINVAL on failure.
945 unsigned long min_region_size = rs->ti->len / (1 << 21); in validate_region_size()
965 * Validate user-supplied value. in validate_region_size()
967 if (region_size > rs->ti->len) { in validate_region_size()
968 rs->ti->error = "Supplied region size is too large"; in validate_region_size()
969 return -EINVAL; in validate_region_size()
975 rs->ti->error = "Supplied region size is too small"; in validate_region_size()
976 return -EINVAL; in validate_region_size()
980 rs->ti->error = "Region size is not a power of 2"; in validate_region_size()
981 return -EINVAL; in validate_region_size()
984 if (region_size < rs->md.chunk_sectors) { in validate_region_size()
985 rs->ti->error = "Region size is smaller than the chunk size"; in validate_region_size()
986 return -EINVAL; in validate_region_size()
993 rs->md.bitmap_info.chunksize = to_bytes(region_size); in validate_region_size()
1005 * Returns: 0 on success, -EINVAL on failure.
1013 for (i = 0; i < rs->raid_disks; i++) in validate_raid_redundancy()
1014 if (!test_bit(FirstUse, &rs->dev[i].rdev.flags) && in validate_raid_redundancy()
1015 ((!test_bit(In_sync, &rs->dev[i].rdev.flags) || in validate_raid_redundancy()
1016 !rs->dev[i].rdev.sb_page))) in validate_raid_redundancy()
1019 switch (rs->md.level) { in validate_raid_redundancy()
1023 if (rebuild_cnt >= rs->md.raid_disks) in validate_raid_redundancy()
1029 if (rebuild_cnt > rs->raid_type->parity_devs) in validate_raid_redundancy()
1033 copies = raid10_md_layout_to_copies(rs->md.new_layout); in validate_raid_redundancy()
1036 return -EINVAL; in validate_raid_redundancy()
1056 raid_disks = min(rs->raid_disks, rs->md.raid_disks); in validate_raid_redundancy()
1057 if (__is_raid10_near(rs->md.new_layout)) { in validate_raid_redundancy()
1061 if ((!rs->dev[i].rdev.sb_page || in validate_raid_redundancy()
1062 !test_bit(In_sync, &rs->dev[i].rdev.flags)) && in validate_raid_redundancy()
1082 last_group_start = (raid_disks / group_size) - 1; in validate_raid_redundancy()
1087 if ((!rs->dev[i].rdev.sb_page || in validate_raid_redundancy()
1088 !test_bit(In_sync, &rs->dev[i].rdev.flags)) && in validate_raid_redundancy()
1095 return -EINVAL; in validate_raid_redundancy()
1101 return -EINVAL; in validate_raid_redundancy()
1111 * [[no]sync] Force or prevent recovery of the
1119 * [max_write_behind <sectors>] See '-write-behind=' (man mdadm)
1125 * RAID10-only options:
1139 struct raid_type *rt = rs->raid_type; in parse_raid_params()
1142 num_raid_params--; /* Account for chunk_size argument */ in parse_raid_params()
1145 rs->ti->error = "Bad numerical argument given for chunk_size"; in parse_raid_params()
1146 return -EINVAL; in parse_raid_params()
1150 * First, parse the in-order required arguments in parse_raid_params()
1158 rs->ti->error = "Chunk size must be a power of 2"; in parse_raid_params()
1159 return -EINVAL; in parse_raid_params()
1161 rs->ti->error = "Chunk size value is too small"; in parse_raid_params()
1162 return -EINVAL; in parse_raid_params()
1165 rs->md.new_chunk_sectors = rs->md.chunk_sectors = value; in parse_raid_params()
1173 * - Device is reset when param is read. in parse_raid_params()
1175 * - No matching superblock found, resets device. in parse_raid_params()
1177 * - Failure noticed, resets device for bitmap replay. in parse_raid_params()
1178 * 4) Device hadn't completed recovery after previous failure. in parse_raid_params()
1179 * - Superblock is read and overrides recovery_offset. in parse_raid_params()
1184 for (i = 0; i < rs->raid_disks; i++) { in parse_raid_params()
1185 set_bit(In_sync, &rs->dev[i].rdev.flags); in parse_raid_params()
1186 rs->dev[i].rdev.recovery_offset = MaxSector; in parse_raid_params()
1195 rs->ti->error = "Not enough raid parameters given"; in parse_raid_params()
1196 return -EINVAL; in parse_raid_params()
1200 if (test_and_set_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags)) { in parse_raid_params()
1201 rs->ti->error = "Only one 'nosync' argument allowed"; in parse_raid_params()
1202 return -EINVAL; in parse_raid_params()
1207 if (test_and_set_bit(__CTR_FLAG_SYNC, &rs->ctr_flags)) { in parse_raid_params()
1208 rs->ti->error = "Only one 'sync' argument allowed"; in parse_raid_params()
1209 return -EINVAL; in parse_raid_params()
1214 if (test_and_set_bit(__CTR_FLAG_RAID10_USE_NEAR_SETS, &rs->ctr_flags)) { in parse_raid_params()
1215 rs->ti->error = "Only one 'raid10_use_new_sets' argument allowed"; in parse_raid_params()
1216 return -EINVAL; in parse_raid_params()
1224 rs->ti->error = "Wrong number of raid parameters given"; in parse_raid_params()
1225 return -EINVAL; in parse_raid_params()
1233 if (test_and_set_bit(__CTR_FLAG_RAID10_FORMAT, &rs->ctr_flags)) { in parse_raid_params()
1234 rs->ti->error = "Only one 'raid10_format' argument pair allowed"; in parse_raid_params()
1235 return -EINVAL; in parse_raid_params()
1238 rs->ti->error = "'raid10_format' is an invalid parameter for this RAID type"; in parse_raid_params()
1239 return -EINVAL; in parse_raid_params()
1243 rs->ti->error = "Invalid 'raid10_format' value given"; in parse_raid_params()
1254 if (test_and_set_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags)) { in parse_raid_params()
1255 rs->ti->error = "Only one raid4/5/6 set journaling device allowed"; in parse_raid_params()
1256 return -EINVAL; in parse_raid_params()
1259 rs->ti->error = "'journal_dev' is an invalid parameter for this RAID type"; in parse_raid_params()
1260 return -EINVAL; in parse_raid_params()
1262 r = dm_get_device(rs->ti, arg, dm_table_get_mode(rs->ti->table), in parse_raid_params()
1263 &rs->journal_dev.dev); in parse_raid_params()
1265 rs->ti->error = "raid4/5/6 journal device lookup failure"; in parse_raid_params()
1268 jdev = &rs->journal_dev.rdev; in parse_raid_params()
1270 jdev->mddev = &rs->md; in parse_raid_params()
1271 jdev->bdev = rs->journal_dev.dev->bdev; in parse_raid_params()
1272 jdev->sectors = bdev_nr_sectors(jdev->bdev); in parse_raid_params()
1273 if (jdev->sectors < MIN_RAID456_JOURNAL_SPACE) { in parse_raid_params()
1274 rs->ti->error = "No space for raid4/5/6 journal"; in parse_raid_params()
1275 return -ENOSPC; in parse_raid_params()
1277 rs->journal_dev.mode = R5C_JOURNAL_MODE_WRITE_THROUGH; in parse_raid_params()
1278 set_bit(Journal, &jdev->flags); in parse_raid_params()
1282 /* "journal_mode <mode>" ("journal_dev" mandatory!) */ in parse_raid_params()
1286 if (!test_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags)) { in parse_raid_params()
1287 rs->ti->error = "raid4/5/6 'journal_mode' is invalid without 'journal_dev'"; in parse_raid_params()
1288 return -EINVAL; in parse_raid_params()
1290 if (test_and_set_bit(__CTR_FLAG_JOURNAL_MODE, &rs->ctr_flags)) { in parse_raid_params()
1291 rs->ti->error = "Only one raid4/5/6 'journal_mode' argument allowed"; in parse_raid_params()
1292 return -EINVAL; in parse_raid_params()
1296 rs->ti->error = "Invalid 'journal_mode' argument"; in parse_raid_params()
1299 rs->journal_dev.mode = r; in parse_raid_params()
1307 rs->ti->error = "Bad numerical argument given in raid params"; in parse_raid_params()
1308 return -EINVAL; in parse_raid_params()
1317 if (!__within_range(value, 0, rs->raid_disks - 1)) { in parse_raid_params()
1318 rs->ti->error = "Invalid rebuild index given"; in parse_raid_params()
1319 return -EINVAL; in parse_raid_params()
1322 if (test_and_set_bit(value, (void *) rs->rebuild_disks)) { in parse_raid_params()
1323 rs->ti->error = "rebuild for this index already given"; in parse_raid_params()
1324 return -EINVAL; in parse_raid_params()
1327 rd = rs->dev + value; in parse_raid_params()
1328 clear_bit(In_sync, &rd->rdev.flags); in parse_raid_params()
1329 clear_bit(Faulty, &rd->rdev.flags); in parse_raid_params()
1330 rd->rdev.recovery_offset = 0; in parse_raid_params()
1331 set_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags); in parse_raid_params()
1334 rs->ti->error = "write_mostly option is only valid for RAID1"; in parse_raid_params()
1335 return -EINVAL; in parse_raid_params()
1338 if (!__within_range(value, 0, rs->md.raid_disks - 1)) { in parse_raid_params()
1339 rs->ti->error = "Invalid write_mostly index given"; in parse_raid_params()
1340 return -EINVAL; in parse_raid_params()
1344 set_bit(WriteMostly, &rs->dev[value].rdev.flags); in parse_raid_params()
1345 set_bit(__CTR_FLAG_WRITE_MOSTLY, &rs->ctr_flags); in parse_raid_params()
1348 rs->ti->error = "max_write_behind option is only valid for RAID1"; in parse_raid_params()
1349 return -EINVAL; in parse_raid_params()
1352 if (test_and_set_bit(__CTR_FLAG_MAX_WRITE_BEHIND, &rs->ctr_flags)) { in parse_raid_params()
1353 rs->ti->error = "Only one max_write_behind argument pair allowed"; in parse_raid_params()
1354 return -EINVAL; in parse_raid_params()
1358 * In device-mapper, we specify things in sectors, but in parse_raid_params()
1362 rs->ti->error = "Max write-behind limit out of range"; in parse_raid_params()
1363 return -EINVAL; in parse_raid_params()
1366 rs->md.bitmap_info.max_write_behind = value / 2; in parse_raid_params()
1368 if (test_and_set_bit(__CTR_FLAG_DAEMON_SLEEP, &rs->ctr_flags)) { in parse_raid_params()
1369 rs->ti->error = "Only one daemon_sleep argument pair allowed"; in parse_raid_params()
1370 return -EINVAL; in parse_raid_params()
1373 rs->ti->error = "daemon sleep period out of range"; in parse_raid_params()
1374 return -EINVAL; in parse_raid_params()
1376 rs->md.bitmap_info.daemon_sleep = value; in parse_raid_params()
1379 if (test_and_set_bit(__CTR_FLAG_DATA_OFFSET, &rs->ctr_flags)) { in parse_raid_params()
1380 rs->ti->error = "Only one data_offset argument pair allowed"; in parse_raid_params()
1381 return -EINVAL; in parse_raid_params()
1386 rs->ti->error = "Bogus data_offset value"; in parse_raid_params()
1387 return -EINVAL; in parse_raid_params()
1389 rs->data_offset = value; in parse_raid_params()
1391 /* Define the +/-# of disks to add to/remove from the given raid set */ in parse_raid_params()
1392 if (test_and_set_bit(__CTR_FLAG_DELTA_DISKS, &rs->ctr_flags)) { in parse_raid_params()
1393 rs->ti->error = "Only one delta_disks argument pair allowed"; in parse_raid_params()
1394 return -EINVAL; in parse_raid_params()
1397 if (!__within_range(abs(value), 1, MAX_RAID_DEVICES - rt->minimal_devs)) { in parse_raid_params()
1398 rs->ti->error = "Too many delta_disk requested"; in parse_raid_params()
1399 return -EINVAL; in parse_raid_params()
1402 rs->delta_disks = value; in parse_raid_params()
1404 if (test_and_set_bit(__CTR_FLAG_STRIPE_CACHE, &rs->ctr_flags)) { in parse_raid_params()
1405 rs->ti->error = "Only one stripe_cache argument pair allowed"; in parse_raid_params()
1406 return -EINVAL; in parse_raid_params()
1410 rs->ti->error = "Inappropriate argument: stripe_cache"; in parse_raid_params()
1411 return -EINVAL; in parse_raid_params()
1415 rs->ti->error = "Bogus stripe cache entries value"; in parse_raid_params()
1416 return -EINVAL; in parse_raid_params()
1418 rs->stripe_cache_entries = value; in parse_raid_params()
1420 if (test_and_set_bit(__CTR_FLAG_MIN_RECOVERY_RATE, &rs->ctr_flags)) { in parse_raid_params()
1421 rs->ti->error = "Only one min_recovery_rate argument pair allowed"; in parse_raid_params()
1422 return -EINVAL; in parse_raid_params()
1426 rs->ti->error = "min_recovery_rate out of range"; in parse_raid_params()
1427 return -EINVAL; in parse_raid_params()
1429 rs->md.sync_speed_min = value; in parse_raid_params()
1431 if (test_and_set_bit(__CTR_FLAG_MAX_RECOVERY_RATE, &rs->ctr_flags)) { in parse_raid_params()
1432 rs->ti->error = "Only one max_recovery_rate argument pair allowed"; in parse_raid_params()
1433 return -EINVAL; in parse_raid_params()
1437 rs->ti->error = "max_recovery_rate out of range"; in parse_raid_params()
1438 return -EINVAL; in parse_raid_params()
1440 rs->md.sync_speed_max = value; in parse_raid_params()
1442 if (test_and_set_bit(__CTR_FLAG_REGION_SIZE, &rs->ctr_flags)) { in parse_raid_params()
1443 rs->ti->error = "Only one region_size argument pair allowed"; in parse_raid_params()
1444 return -EINVAL; in parse_raid_params()
1448 rs->requested_bitmap_chunk_sectors = value; in parse_raid_params()
1450 if (test_and_set_bit(__CTR_FLAG_RAID10_COPIES, &rs->ctr_flags)) { in parse_raid_params()
1451 rs->ti->error = "Only one raid10_copies argument pair allowed"; in parse_raid_params()
1452 return -EINVAL; in parse_raid_params()
1455 if (!__within_range(value, 2, rs->md.raid_disks)) { in parse_raid_params()
1456 rs->ti->error = "Bad value for 'raid10_copies'"; in parse_raid_params()
1457 return -EINVAL; in parse_raid_params()
1463 rs->ti->error = "Unable to parse RAID parameter"; in parse_raid_params()
1464 return -EINVAL; in parse_raid_params()
1468 if (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 and nosync are mutually exclusive"; in parse_raid_params()
1471 return -EINVAL; in parse_raid_params()
1474 if (test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags) && in parse_raid_params()
1475 (test_bit(__CTR_FLAG_SYNC, &rs->ctr_flags) || in parse_raid_params()
1476 test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags))) { in parse_raid_params()
1477 rs->ti->error = "sync/nosync and rebuild are mutually exclusive"; in parse_raid_params()
1478 return -EINVAL; in parse_raid_params()
1481 if (write_mostly >= rs->md.raid_disks) { in parse_raid_params()
1482 rs->ti->error = "Can't set all raid1 devices to write_mostly"; in parse_raid_params()
1483 return -EINVAL; in parse_raid_params()
1486 if (rs->md.sync_speed_max && in parse_raid_params()
1487 rs->md.sync_speed_min > rs->md.sync_speed_max) { in parse_raid_params()
1488 rs->ti->error = "Bogus recovery rates"; in parse_raid_params()
1489 return -EINVAL; in parse_raid_params()
1493 return -EINVAL; in parse_raid_params()
1495 if (rs->md.chunk_sectors) in parse_raid_params()
1496 max_io_len = rs->md.chunk_sectors; in parse_raid_params()
1500 if (dm_set_target_max_io_len(rs->ti, max_io_len)) in parse_raid_params()
1501 return -EINVAL; in parse_raid_params()
1504 if (raid10_copies > rs->md.raid_disks) { in parse_raid_params()
1505 rs->ti->error = "Not enough devices to satisfy specification"; in parse_raid_params()
1506 return -EINVAL; in parse_raid_params()
1509 rs->md.new_layout = raid10_format_to_md_layout(rs, raid10_format, raid10_copies); in parse_raid_params()
1510 if (rs->md.new_layout < 0) { in parse_raid_params()
1511 rs->ti->error = "Error getting raid10 format"; in parse_raid_params()
1512 return rs->md.new_layout; in parse_raid_params()
1515 rt = get_raid_type_by_ll(10, rs->md.new_layout); in parse_raid_params()
1517 rs->ti->error = "Failed to recognize new raid10 layout"; in parse_raid_params()
1518 return -EINVAL; in parse_raid_params()
1521 if ((rt->algorithm == ALGORITHM_RAID10_DEFAULT || in parse_raid_params()
1522 rt->algorithm == ALGORITHM_RAID10_NEAR) && in parse_raid_params()
1523 test_bit(__CTR_FLAG_RAID10_USE_NEAR_SETS, &rs->ctr_flags)) { in parse_raid_params()
1524 rs->ti->error = "RAID10 format 'near' and 'raid10_use_near_sets' are incompatible"; in parse_raid_params()
1525 return -EINVAL; in parse_raid_params()
1529 rs->raid10_copies = raid10_copies; in parse_raid_params()
1532 rs->md.persistent = 0; in parse_raid_params()
1533 rs->md.external = 1; in parse_raid_params()
1544 struct mddev *mddev = &rs->md; in rs_set_raid456_stripe_cache()
1545 uint32_t min_stripes = max(mddev->chunk_sectors, mddev->new_chunk_sectors) / 2; in rs_set_raid456_stripe_cache()
1546 uint32_t nr_stripes = rs->stripe_cache_entries; in rs_set_raid456_stripe_cache()
1548 if (!rt_is_raid456(rs->raid_type)) { in rs_set_raid456_stripe_cache()
1549 rs->ti->error = "Inappropriate raid level; cannot change stripe_cache size"; in rs_set_raid456_stripe_cache()
1550 return -EINVAL; in rs_set_raid456_stripe_cache()
1559 conf = mddev->private; in rs_set_raid456_stripe_cache()
1561 rs->ti->error = "Cannot change stripe_cache size on inactive RAID set"; in rs_set_raid456_stripe_cache()
1562 return -EINVAL; in rs_set_raid456_stripe_cache()
1566 if (conf->min_nr_stripes != nr_stripes) { in rs_set_raid456_stripe_cache()
1569 rs->ti->error = "Failed to set raid4/5/6 stripe cache size"; in rs_set_raid456_stripe_cache()
1582 return rs->md.raid_disks - rs->raid_type->parity_devs; in mddev_data_stripes()
1588 return rs->raid_disks - rs->raid_type->parity_devs; in rs_data_stripes()
1592 * Retrieve rdev->sectors from any valid raid device of @rs
1593 * to allow userpace to pass in arbitray "- -" device tupples.
1599 for (i = 0; i < rs->raid_disks; i++) { in __rdev_sectors()
1600 struct md_rdev *rdev = &rs->dev[i].rdev; in __rdev_sectors()
1602 if (!test_bit(Journal, &rdev->flags) && in __rdev_sectors()
1603 rdev->bdev && rdev->sectors) in __rdev_sectors()
1604 return rdev->sectors; in __rdev_sectors()
1616 rdev_for_each(rdev, &rs->md) in _check_data_dev_sectors()
1617 if (!test_bit(Journal, &rdev->flags) && rdev->bdev) { in _check_data_dev_sectors()
1618 ds = min(ds, bdev_nr_sectors(rdev->bdev)); in _check_data_dev_sectors()
1619 if (ds < rs->md.dev_sectors) { in _check_data_dev_sectors()
1620 rs->ti->error = "Component device(s) too small"; in _check_data_dev_sectors()
1621 return -EINVAL; in _check_data_dev_sectors()
1634 struct mddev *mddev = &rs->md; in rs_set_dev_and_array_sectors()
1637 delta_disks = mddev->delta_disks; in rs_set_dev_and_array_sectors()
1640 delta_disks = rs->delta_disks; in rs_set_dev_and_array_sectors()
1645 if (rt_is_raid1(rs->raid_type)) in rs_set_dev_and_array_sectors()
1647 else if (rt_is_raid10(rs->raid_type)) { in rs_set_dev_and_array_sectors()
1648 if (rs->raid10_copies < 2 || in rs_set_dev_and_array_sectors()
1650 rs->ti->error = "Bogus raid10 data copies or delta disks"; in rs_set_dev_and_array_sectors()
1651 return -EINVAL; in rs_set_dev_and_array_sectors()
1654 dev_sectors *= rs->raid10_copies; in rs_set_dev_and_array_sectors()
1659 if (sector_div(array_sectors, rs->raid10_copies)) in rs_set_dev_and_array_sectors()
1669 mddev->array_sectors = array_sectors; in rs_set_dev_and_array_sectors()
1670 mddev->dev_sectors = dev_sectors; in rs_set_dev_and_array_sectors()
1675 rs->ti->error = "Target length not divisible by number of data devices"; in rs_set_dev_and_array_sectors()
1676 return -EINVAL; in rs_set_dev_and_array_sectors()
1679 /* Setup recovery on @rs */
1684 rs->md.recovery_cp = MaxSector; in rs_setup_recovery()
1688 * ensure proper parity and Q-Syndrome in rs_setup_recovery()
1691 rs->md.recovery_cp = dev_sectors; in rs_setup_recovery()
1693 * Other raid set types may skip recovery in rs_setup_recovery()
1697 rs->md.recovery_cp = test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags) in rs_setup_recovery()
1711 dm_table_event(rs->ti->table); in do_table_event()
1722 struct mddev *mddev = &rs->md; in rs_check_takeover()
1725 if (rs->md.degraded) { in rs_check_takeover()
1726 rs->ti->error = "Can't takeover degraded raid set"; in rs_check_takeover()
1727 return -EPERM; in rs_check_takeover()
1731 rs->ti->error = "Can't takeover reshaping raid set"; in rs_check_takeover()
1732 return -EPERM; in rs_check_takeover()
1735 switch (mddev->level) { in rs_check_takeover()
1737 /* raid0 -> raid1/5 with one disk */ in rs_check_takeover()
1738 if ((mddev->new_level == 1 || mddev->new_level == 5) && in rs_check_takeover()
1739 mddev->raid_disks == 1) in rs_check_takeover()
1742 /* raid0 -> raid10 */ in rs_check_takeover()
1743 if (mddev->new_level == 10 && in rs_check_takeover()
1744 !(rs->raid_disks % mddev->raid_disks)) in rs_check_takeover()
1747 /* raid0 with multiple disks -> raid4/5/6 */ in rs_check_takeover()
1748 if (__within_range(mddev->new_level, 4, 6) && in rs_check_takeover()
1749 mddev->new_layout == ALGORITHM_PARITY_N && in rs_check_takeover()
1750 mddev->raid_disks > 1) in rs_check_takeover()
1757 if (__is_raid10_offset(mddev->layout)) in rs_check_takeover()
1760 near_copies = __raid10_near_copies(mddev->layout); in rs_check_takeover()
1762 /* raid10* -> raid0 */ in rs_check_takeover()
1763 if (mddev->new_level == 0) { in rs_check_takeover()
1766 !(mddev->raid_disks % near_copies)) { in rs_check_takeover()
1767 mddev->raid_disks /= near_copies; in rs_check_takeover()
1768 mddev->delta_disks = mddev->raid_disks; in rs_check_takeover()
1774 __raid10_far_copies(mddev->layout) > 1) in rs_check_takeover()
1780 /* raid10_{near,far} -> raid1 */ in rs_check_takeover()
1781 if (mddev->new_level == 1 && in rs_check_takeover()
1782 max(near_copies, __raid10_far_copies(mddev->layout)) == mddev->raid_disks) in rs_check_takeover()
1785 /* raid10_{near,far} 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()
1792 /* raid1 with 2 disks -> raid4/5 */ in rs_check_takeover()
1793 if (__within_range(mddev->new_level, 4, 5) && in rs_check_takeover()
1794 mddev->raid_disks == 2) { in rs_check_takeover()
1795 mddev->degraded = 1; in rs_check_takeover()
1799 /* raid1 -> raid0 */ in rs_check_takeover()
1800 if (mddev->new_level == 0 && in rs_check_takeover()
1801 mddev->raid_disks == 1) in rs_check_takeover()
1804 /* raid1 -> raid10 */ in rs_check_takeover()
1805 if (mddev->new_level == 10) in rs_check_takeover()
1810 /* raid4 -> raid0 */ in rs_check_takeover()
1811 if (mddev->new_level == 0) in rs_check_takeover()
1814 /* raid4 -> raid1/5 with 2 disks */ in rs_check_takeover()
1815 if ((mddev->new_level == 1 || mddev->new_level == 5) && in rs_check_takeover()
1816 mddev->raid_disks == 2) in rs_check_takeover()
1819 /* raid4 -> raid5/6 with parity N */ in rs_check_takeover()
1820 if (__within_range(mddev->new_level, 5, 6) && in rs_check_takeover()
1821 mddev->layout == ALGORITHM_PARITY_N) in rs_check_takeover()
1826 /* raid5 with parity N -> raid0 */ in rs_check_takeover()
1827 if (mddev->new_level == 0 && in rs_check_takeover()
1828 mddev->layout == ALGORITHM_PARITY_N) in rs_check_takeover()
1831 /* raid5 with parity N -> raid4 */ in rs_check_takeover()
1832 if (mddev->new_level == 4 && in rs_check_takeover()
1833 mddev->layout == ALGORITHM_PARITY_N) in rs_check_takeover()
1836 /* raid5 with 2 disks -> raid1/4/10 */ in rs_check_takeover()
1837 if ((mddev->new_level == 1 || mddev->new_level == 4 || mddev->new_level == 10) && in rs_check_takeover()
1838 mddev->raid_disks == 2) in rs_check_takeover()
1841 /* raid5_* -> raid6_*_6 with Q-Syndrome N (e.g. raid5_ra -> raid6_ra_6 */ in rs_check_takeover()
1842 if (mddev->new_level == 6 && in rs_check_takeover()
1843 ((mddev->layout == ALGORITHM_PARITY_N && mddev->new_layout == ALGORITHM_PARITY_N) || in rs_check_takeover()
1844 … __within_range(mddev->new_layout, ALGORITHM_LEFT_ASYMMETRIC_6, ALGORITHM_RIGHT_SYMMETRIC_6))) in rs_check_takeover()
1849 /* raid6 with parity N -> raid0 */ in rs_check_takeover()
1850 if (mddev->new_level == 0 && in rs_check_takeover()
1851 mddev->layout == ALGORITHM_PARITY_N) in rs_check_takeover()
1854 /* raid6 with parity N -> raid4 */ in rs_check_takeover()
1855 if (mddev->new_level == 4 && in rs_check_takeover()
1856 mddev->layout == ALGORITHM_PARITY_N) in rs_check_takeover()
1859 /* raid6_*_n with Q-Syndrome N -> raid5_* */ in rs_check_takeover()
1860 if (mddev->new_level == 5 && in rs_check_takeover()
1861 ((mddev->layout == ALGORITHM_PARITY_N && mddev->new_layout == ALGORITHM_PARITY_N) || in rs_check_takeover()
1862 __within_range(mddev->new_layout, ALGORITHM_LEFT_ASYMMETRIC, ALGORITHM_RIGHT_SYMMETRIC))) in rs_check_takeover()
1870 rs->ti->error = "takeover not possible"; in rs_check_takeover()
1871 return -EINVAL; in rs_check_takeover()
1877 return rs->md.new_level != rs->md.level; in rs_takeover_requested()
1883 return (use_mddev ? rs->md.delta_disks : rs->delta_disks) || in rs_is_layout_change()
1884 rs->md.new_layout != rs->md.layout || in rs_is_layout_change()
1885 rs->md.new_chunk_sectors != rs->md.chunk_sectors; in rs_is_layout_change()
1892 struct mddev *mddev = &rs->md; in rs_reshape_requested()
1904 if (rs->delta_disks) in rs_reshape_requested()
1905 return !!rs->delta_disks; in rs_reshape_requested()
1908 mddev->raid_disks != rs->raid_disks; in rs_reshape_requested()
1913 !__is_raid10_far(mddev->new_layout) && in rs_reshape_requested()
1914 rs->delta_disks >= 0; in rs_reshape_requested()
1922 /* State flags for sb->flags */
1928 * Devices with this superblock should only ever be accessed via device-mapper.
1998 * up to 256 devices with the 1.9.0 on-disk metadata format
2000 __le64 extended_failed_devices[DISKS_ARRAY_ELEMS - 1];
2010 * - reshape function non-existent
2011 * - degraded set
2012 * - ongoing recovery
2013 * - ongoing reshape
2015 * Returns 0 if none or -EPERM if given constraint
2020 struct mddev *mddev = &rs->md; in rs_check_reshape()
2022 if (!mddev->pers || !mddev->pers->check_reshape) in rs_check_reshape()
2023 rs->ti->error = "Reshape not supported"; in rs_check_reshape()
2024 else if (mddev->degraded) in rs_check_reshape()
2025 rs->ti->error = "Can't reshape degraded raid set"; in rs_check_reshape()
2027 rs->ti->error = "Convert request on recovering raid set prohibited"; in rs_check_reshape()
2029 rs->ti->error = "raid set already reshaping!"; in rs_check_reshape()
2031 rs->ti->error = "Reshaping only supported for raid1/4/5/6/10"; in rs_check_reshape()
2035 return -EPERM; in rs_check_reshape()
2040 BUG_ON(!rdev->sb_page); in read_disk_sb()
2042 if (rdev->sb_loaded && !force_reload) in read_disk_sb()
2045 rdev->sb_loaded = 0; in read_disk_sb()
2047 if (!sync_page_io(rdev, 0, size, rdev->sb_page, REQ_OP_READ, true)) { in read_disk_sb()
2049 rdev->raid_disk); in read_disk_sb()
2050 md_error(rdev->mddev, rdev); in read_disk_sb()
2051 set_bit(Faulty, &rdev->flags); in read_disk_sb()
2052 return -EIO; in read_disk_sb()
2055 rdev->sb_loaded = 1; in read_disk_sb()
2062 failed_devices[0] = le64_to_cpu(sb->failed_devices); in sb_retrieve_failed_devices()
2063 memset(failed_devices + 1, 0, sizeof(sb->extended_failed_devices)); in sb_retrieve_failed_devices()
2065 if (le32_to_cpu(sb->compat_features) & FEATURE_FLAG_SUPPORTS_V190) { in sb_retrieve_failed_devices()
2066 int i = ARRAY_SIZE(sb->extended_failed_devices); in sb_retrieve_failed_devices()
2068 while (i--) in sb_retrieve_failed_devices()
2069 failed_devices[i+1] = le64_to_cpu(sb->extended_failed_devices[i]); in sb_retrieve_failed_devices()
2075 int i = ARRAY_SIZE(sb->extended_failed_devices); in sb_update_failed_devices()
2077 sb->failed_devices = cpu_to_le64(failed_devices[0]); in sb_update_failed_devices()
2078 while (i--) in sb_update_failed_devices()
2079 sb->extended_failed_devices[i] = cpu_to_le64(failed_devices[i+1]); in sb_update_failed_devices()
2096 if (!rdev->meta_bdev) in super_sync()
2099 BUG_ON(!rdev->sb_page); in super_sync()
2101 sb = page_address(rdev->sb_page); in super_sync()
2105 for (i = 0; i < rs->raid_disks; i++) in super_sync()
2106 if (!rs->dev[i].data_dev || test_bit(Faulty, &rs->dev[i].rdev.flags)) { in super_sync()
2114 sb->magic = cpu_to_le32(DM_RAID_MAGIC); in super_sync()
2115 sb->compat_features = cpu_to_le32(FEATURE_FLAG_SUPPORTS_V190); in super_sync()
2117 sb->num_devices = cpu_to_le32(mddev->raid_disks); in super_sync()
2118 sb->array_position = cpu_to_le32(rdev->raid_disk); in super_sync()
2120 sb->events = cpu_to_le64(mddev->events); in super_sync()
2122 sb->disk_recovery_offset = cpu_to_le64(rdev->recovery_offset); in super_sync()
2123 sb->array_resync_offset = cpu_to_le64(mddev->recovery_cp); in super_sync()
2125 sb->level = cpu_to_le32(mddev->level); in super_sync()
2126 sb->layout = cpu_to_le32(mddev->layout); in super_sync()
2127 sb->stripe_sectors = cpu_to_le32(mddev->chunk_sectors); in super_sync()
2134 sb->new_level = cpu_to_le32(mddev->new_level); in super_sync()
2135 sb->new_layout = cpu_to_le32(mddev->new_layout); in super_sync()
2136 sb->new_stripe_sectors = cpu_to_le32(mddev->new_chunk_sectors); in super_sync()
2138 sb->delta_disks = cpu_to_le32(mddev->delta_disks); in super_sync()
2141 sb->reshape_position = cpu_to_le64(mddev->reshape_position); in super_sync()
2142 if (le64_to_cpu(sb->reshape_position) != MaxSector) { in super_sync()
2144 sb->flags |= cpu_to_le32(SB_FLAG_RESHAPE_ACTIVE); in super_sync()
2146 if (mddev->delta_disks < 0 || mddev->reshape_backwards) in super_sync()
2147 sb->flags |= cpu_to_le32(SB_FLAG_RESHAPE_BACKWARDS); in super_sync()
2150 sb->flags &= ~(cpu_to_le32(SB_FLAG_RESHAPE_ACTIVE|SB_FLAG_RESHAPE_BACKWARDS)); in super_sync()
2153 sb->array_sectors = cpu_to_le64(mddev->array_sectors); in super_sync()
2154 sb->data_offset = cpu_to_le64(rdev->data_offset); in super_sync()
2155 sb->new_data_offset = cpu_to_le64(rdev->new_data_offset); in super_sync()
2156 sb->sectors = cpu_to_le64(rdev->sectors); in super_sync()
2157 sb->incompat_features = cpu_to_le32(0); in super_sync()
2160 memset(sb + 1, 0, rdev->sb_size - sizeof(*sb)); in super_sync()
2169 * Return: 1 if use rdev, 0 if use refdev, -Exxx otherwise
2178 r = read_disk_sb(rdev, rdev->sb_size, false); in super_load()
2182 sb = page_address(rdev->sb_page); in super_load()
2189 if ((sb->magic != cpu_to_le32(DM_RAID_MAGIC)) || in super_load()
2190 (!test_bit(In_sync, &rdev->flags) && !rdev->recovery_offset)) { in super_load()
2191 super_sync(rdev->mddev, rdev); in super_load()
2193 set_bit(FirstUse, &rdev->flags); in super_load()
2194 sb->compat_features = cpu_to_le32(FEATURE_FLAG_SUPPORTS_V190); in super_load()
2197 set_bit(MD_SB_CHANGE_DEVS, &rdev->mddev->sb_flags); in super_load()
2206 events_sb = le64_to_cpu(sb->events); in super_load()
2208 refsb = page_address(refdev->sb_page); in super_load()
2209 events_refsb = le64_to_cpu(refsb->events); in super_load()
2217 struct mddev *mddev = &rs->md; in super_init_validation()
2225 sb = page_address(rdev->sb_page); in super_init_validation()
2226 events_sb = le64_to_cpu(sb->events); in super_init_validation()
2231 mddev->events = events_sb ? : 1; in super_init_validation()
2233 mddev->reshape_position = MaxSector; in super_init_validation()
2235 mddev->raid_disks = le32_to_cpu(sb->num_devices); in super_init_validation()
2236 mddev->level = le32_to_cpu(sb->level); in super_init_validation()
2237 mddev->layout = le32_to_cpu(sb->layout); in super_init_validation()
2238 mddev->chunk_sectors = le32_to_cpu(sb->stripe_sectors); in super_init_validation()
2244 if (le32_to_cpu(sb->compat_features) & FEATURE_FLAG_SUPPORTS_V190) { in super_init_validation()
2246 mddev->new_level = le32_to_cpu(sb->new_level); in super_init_validation()
2247 mddev->new_layout = le32_to_cpu(sb->new_layout); in super_init_validation()
2248 mddev->new_chunk_sectors = le32_to_cpu(sb->new_stripe_sectors); in super_init_validation()
2249 mddev->delta_disks = le32_to_cpu(sb->delta_disks); in super_init_validation()
2250 mddev->array_sectors = le64_to_cpu(sb->array_sectors); in super_init_validation()
2253 if (le32_to_cpu(sb->flags) & SB_FLAG_RESHAPE_ACTIVE) { in super_init_validation()
2254 if (test_bit(__CTR_FLAG_DELTA_DISKS, &rs->ctr_flags)) { in super_init_validation()
2256 return -EINVAL; in super_init_validation()
2259 if (mddev->delta_disks < 0 || in super_init_validation()
2260 (!mddev->delta_disks && (le32_to_cpu(sb->flags) & SB_FLAG_RESHAPE_BACKWARDS))) in super_init_validation()
2261 mddev->reshape_backwards = 1; in super_init_validation()
2263 mddev->reshape_backwards = 0; in super_init_validation()
2265 mddev->reshape_position = le64_to_cpu(sb->reshape_position); in super_init_validation()
2266 rs->raid_type = get_raid_type_by_ll(mddev->level, mddev->layout); in super_init_validation()
2273 struct raid_type *rt_cur = get_raid_type_by_ll(mddev->level, mddev->layout); in super_init_validation()
2274 struct raid_type *rt_new = get_raid_type_by_ll(mddev->new_level, mddev->new_layout); in super_init_validation()
2279 rt_cur->name, rt_new->name); in super_init_validation()
2282 return -EINVAL; in super_init_validation()
2285 if (mddev->layout != mddev->new_layout) { in super_init_validation()
2288 rt_cur->name, rt_new->name); in super_init_validation()
2291 le32_to_cpu(sb->layout), mddev->new_layout); in super_init_validation()
2293 if (mddev->chunk_sectors != mddev->new_chunk_sectors) in super_init_validation()
2295 mddev->chunk_sectors, mddev->new_chunk_sectors); in super_init_validation()
2296 if (rs->delta_disks) in super_init_validation()
2298 mddev->raid_disks, mddev->raid_disks + rs->delta_disks); in super_init_validation()
2301 raid10_md_layout_to_format(mddev->layout), in super_init_validation()
2302 raid10_md_layout_to_copies(mddev->layout)); in super_init_validation()
2304 raid10_md_layout_to_format(mddev->new_layout), in super_init_validation()
2305 raid10_md_layout_to_copies(mddev->new_layout)); in super_init_validation()
2307 return -EINVAL; in super_init_validation()
2313 if (!test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags)) in super_init_validation()
2314 mddev->recovery_cp = le64_to_cpu(sb->array_resync_offset); in super_init_validation()
2319 * 1) The raid set is brand new - in which case, all of the in super_init_validation()
2323 * and the new device needs to be rebuilt - in which in super_init_validation()
2332 if (test_bit(Journal, &rdev->flags)) in super_init_validation()
2335 if (test_bit(FirstUse, &r->flags)) in super_init_validation()
2338 if (!test_bit(In_sync, &r->flags)) { in super_init_validation()
2340 r->raid_disk); in super_init_validation()
2343 if (test_bit(FirstUse, &r->flags)) in super_init_validation()
2348 if (new_devs == rs->raid_disks || !rebuilds) { in super_init_validation()
2350 if (new_devs == rs->raid_disks) { in super_init_validation()
2352 set_bit(MD_ARRAY_FIRST_USE, &mddev->flags); in super_init_validation()
2354 new_devs != rs->delta_disks) { in super_init_validation()
2357 return -EINVAL; in super_init_validation()
2361 " a raid set with %u other first-time devices", in super_init_validation()
2363 return -EINVAL; in super_init_validation()
2368 return -EINVAL; in super_init_validation()
2369 } else if (!test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags) && rs_is_recovering(rs)) { in super_init_validation()
2370 DMERR("'rebuild' specified while raid set is not in-sync (recovery_cp=%llu)", in super_init_validation()
2371 (unsigned long long) mddev->recovery_cp); in super_init_validation()
2372 return -EINVAL; in super_init_validation()
2375 (unsigned long long) mddev->reshape_position); in super_init_validation()
2376 return -EINVAL; in super_init_validation()
2386 if (test_bit(Journal, &rdev->flags) || in super_init_validation()
2387 !r->sb_page) in super_init_validation()
2389 sb2 = page_address(r->sb_page); in super_init_validation()
2390 sb2->failed_devices = 0; in super_init_validation()
2391 memset(sb2->extended_failed_devices, 0, sizeof(sb2->extended_failed_devices)); in super_init_validation()
2394 * Check for any device re-ordering. in super_init_validation()
2396 if (!test_bit(FirstUse, &r->flags) && (r->raid_disk >= 0)) { in super_init_validation()
2397 role = le32_to_cpu(sb2->array_position); in super_init_validation()
2401 if (role != r->raid_disk) { in super_init_validation()
2402 if (rs_is_raid10(rs) && __is_raid10_near(mddev->layout)) { in super_init_validation()
2403 if (mddev->raid_disks % __raid10_near_copies(mddev->layout) || in super_init_validation()
2404 rs->raid_disks % rs->raid10_copies) { in super_init_validation()
2405 rs->ti->error = in super_init_validation()
2407 return -EINVAL; in super_init_validation()
2410 sb2->array_position = cpu_to_le32(r->raid_disk); in super_init_validation()
2412 } else if (!(rs_is_raid10(rs) && rt_is_raid0(rs->raid_type)) && in super_init_validation()
2413 !(rs_is_raid0(rs) && rt_is_raid10(rs->raid_type)) && in super_init_validation()
2414 !rt_is_raid1(rs->raid_type)) { in super_init_validation()
2415 rs->ti->error = "Cannot change device positions in raid set"; in super_init_validation()
2416 return -EINVAL; in super_init_validation()
2419 DMINFO("raid device #%d now at position #%d", role, r->raid_disk); in super_init_validation()
2423 * Partial recovery is performed on in super_init_validation()
2427 set_bit(Faulty, &r->flags); in super_init_validation()
2436 struct mddev *mddev = &rs->md; in super_validate()
2439 if (rs_is_raid0(rs) || !rdev->sb_page || rdev->raid_disk < 0) in super_validate()
2442 sb = page_address(rdev->sb_page); in super_validate()
2445 * If mddev->events is not set, we know we have not yet initialized in super_validate()
2448 if (!mddev->events && super_init_validation(rs, rdev)) in super_validate()
2449 return -EINVAL; in super_validate()
2451 if (le32_to_cpu(sb->compat_features) && in super_validate()
2452 le32_to_cpu(sb->compat_features) != FEATURE_FLAG_SUPPORTS_V190) { in super_validate()
2453 rs->ti->error = "Unable to assemble array: Unknown flag(s) in compatible feature flags"; in super_validate()
2454 return -EINVAL; in super_validate()
2457 if (sb->incompat_features) { in super_validate()
2458 rs->ti->error = "Unable to assemble array: No incompatible feature flags supported yet"; in super_validate()
2459 return -EINVAL; in super_validate()
2463 …mddev->bitmap_info.offset = (rt_is_raid0(rs->raid_type) || rs->journal_dev.dev) ? 0 : to_sector(40… in super_validate()
2464 mddev->bitmap_info.default_offset = mddev->bitmap_info.offset; in super_validate()
2466 if (!test_and_clear_bit(FirstUse, &rdev->flags)) { in super_validate()
2472 if (le32_to_cpu(sb->compat_features) & FEATURE_FLAG_SUPPORTS_V190) in super_validate()
2473 rdev->sectors = le64_to_cpu(sb->sectors); in super_validate()
2475 rdev->recovery_offset = le64_to_cpu(sb->disk_recovery_offset); in super_validate()
2476 if (rdev->recovery_offset == MaxSector) in super_validate()
2477 set_bit(In_sync, &rdev->flags); in super_validate()
2479 * If no reshape in progress -> we're recovering single in super_validate()
2480 * disk(s) and have to set the device(s) to out-of-sync in super_validate()
2483 clear_bit(In_sync, &rdev->flags); /* Mandatory for recovery */ in super_validate()
2489 if (test_and_clear_bit(Faulty, &rdev->flags)) { in super_validate()
2490 rdev->recovery_offset = 0; in super_validate()
2491 clear_bit(In_sync, &rdev->flags); in super_validate()
2492 rdev->saved_raid_disk = rdev->raid_disk; in super_validate()
2495 /* Reshape support -> restore repective data offsets */ in super_validate()
2496 rdev->data_offset = le64_to_cpu(sb->data_offset); in super_validate()
2497 rdev->new_data_offset = le64_to_cpu(sb->new_data_offset); in super_validate()
2509 struct mddev *mddev = &rs->md; in analyse_superblocks()
2513 if (test_bit(Journal, &rdev->flags)) in analyse_superblocks()
2516 if (!rdev->meta_bdev) in analyse_superblocks()
2520 rdev->sb_start = 0; in analyse_superblocks()
2521 rdev->sb_size = bdev_logical_block_size(rdev->meta_bdev); in analyse_superblocks()
2522 if (rdev->sb_size < sizeof(struct dm_raid_superblock) || rdev->sb_size > PAGE_SIZE) { in analyse_superblocks()
2524 return -EINVAL; in analyse_superblocks()
2536 if (test_bit(__CTR_FLAG_SYNC, &rs->ctr_flags)) in analyse_superblocks()
2559 * mistakenly acting as if '- -' got passed into the constructor). in analyse_superblocks()
2564 rdev->raid_disk = rdev->saved_raid_disk = -1; in analyse_superblocks()
2576 rs->ti->error = "Unable to assemble array: Invalid superblocks"; in analyse_superblocks()
2578 return -EINVAL; in analyse_superblocks()
2581 rs->ti->error = "Insufficient redundancy to activate array"; in analyse_superblocks()
2582 return -EINVAL; in analyse_superblocks()
2586 if (!test_bit(Journal, &rdev->flags) && in analyse_superblocks()
2589 return -EINVAL; in analyse_superblocks()
2607 if (!test_bit(__CTR_FLAG_DATA_OFFSET, &rs->ctr_flags)) { in rs_adjust_data_offsets()
2615 rdev = &rs->dev[0].rdev; in rs_adjust_data_offsets()
2617 if (rs->delta_disks < 0) { in rs_adjust_data_offsets()
2621 * - before reshape: data is at offset 0 and free space in rs_adjust_data_offsets()
2624 * - after reshape: data is at offset rs->data_offset != 0 on each component LV in rs_adjust_data_offsets()
2627 new_data_offset = rs->data_offset; in rs_adjust_data_offsets()
2629 } else if (rs->delta_disks > 0) { in rs_adjust_data_offsets()
2633 * - before reshape: data is at offset rs->data_offset != 0 and in rs_adjust_data_offsets()
2636 * - after reshape: data is at offset 0 on each component LV in rs_adjust_data_offsets()
2638 data_offset = rs->data_offset; in rs_adjust_data_offsets()
2645 * - or - (data offset != 0) in rs_adjust_data_offsets()
2647 * Changing RAID layout or chunk size -> toggle offsets in rs_adjust_data_offsets()
2649 * - before reshape: data is at offset rs->data_offset 0 and in rs_adjust_data_offsets()
2651 * -or- in rs_adjust_data_offsets()
2652 * data is at offset rs->data_offset != 0 and in rs_adjust_data_offsets()
2655 * - after reshape: data is at offset 0 if it was at offset != 0 in rs_adjust_data_offsets()
2660 data_offset = rs->data_offset ? rdev->data_offset : 0; in rs_adjust_data_offsets()
2661 new_data_offset = data_offset ? 0 : rs->data_offset; in rs_adjust_data_offsets()
2662 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in rs_adjust_data_offsets()
2668 if (rs->data_offset && in rs_adjust_data_offsets()
2669 bdev_nr_sectors(rdev->bdev) - rs->md.dev_sectors < MIN_FREE_RESHAPE_SPACE) { in rs_adjust_data_offsets()
2670 rs->ti->error = data_offset ? "No space for forward reshape" : in rs_adjust_data_offsets()
2672 return -ENOSPC; in rs_adjust_data_offsets()
2677 * avoid false recovery positives in the constructor. in rs_adjust_data_offsets()
2679 if (rs->md.recovery_cp < rs->md.dev_sectors) in rs_adjust_data_offsets()
2680 rs->md.recovery_cp += rs->dev[0].rdev.data_offset; in rs_adjust_data_offsets()
2683 rdev_for_each(rdev, &rs->md) { in rs_adjust_data_offsets()
2684 if (!test_bit(Journal, &rdev->flags)) { in rs_adjust_data_offsets()
2685 rdev->data_offset = data_offset; in rs_adjust_data_offsets()
2686 rdev->new_data_offset = new_data_offset; in rs_adjust_data_offsets()
2693 /* Userpace reordered disks -> adjust raid_disk indexes in @rs */
2699 rdev_for_each(rdev, &rs->md) { in __reorder_raid_disk_indexes()
2700 if (!test_bit(Journal, &rdev->flags)) { in __reorder_raid_disk_indexes()
2701 rdev->raid_disk = i++; in __reorder_raid_disk_indexes()
2702 rdev->saved_raid_disk = rdev->new_raid_disk = -1; in __reorder_raid_disk_indexes()
2712 struct mddev *mddev = &rs->md; in rs_setup_takeover()
2714 unsigned int d = mddev->raid_disks = rs->raid_disks; in rs_setup_takeover()
2715 sector_t new_data_offset = rs->dev[0].rdev.data_offset ? 0 : rs->data_offset; in rs_setup_takeover()
2717 if (rt_is_raid10(rs->raid_type)) { in rs_setup_takeover()
2719 /* Userpace reordered disks -> adjust raid_disk indexes */ in rs_setup_takeover()
2722 /* raid0 -> raid10_far layout */ in rs_setup_takeover()
2723 mddev->layout = raid10_format_to_md_layout(rs, ALGORITHM_RAID10_FAR, in rs_setup_takeover()
2724 rs->raid10_copies); in rs_setup_takeover()
2726 /* raid1 -> raid10_near layout */ in rs_setup_takeover()
2727 mddev->layout = raid10_format_to_md_layout(rs, ALGORITHM_RAID10_NEAR, in rs_setup_takeover()
2728 rs->raid_disks); in rs_setup_takeover()
2730 return -EINVAL; in rs_setup_takeover()
2734 clear_bit(MD_ARRAY_FIRST_USE, &mddev->flags); in rs_setup_takeover()
2735 mddev->recovery_cp = MaxSector; in rs_setup_takeover()
2737 while (d--) { in rs_setup_takeover()
2738 rdev = &rs->dev[d].rdev; in rs_setup_takeover()
2740 if (test_bit(d, (void *) rs->rebuild_disks)) { in rs_setup_takeover()
2741 clear_bit(In_sync, &rdev->flags); in rs_setup_takeover()
2742 clear_bit(Faulty, &rdev->flags); in rs_setup_takeover()
2743 mddev->recovery_cp = rdev->recovery_offset = 0; in rs_setup_takeover()
2745 set_bit(MD_ARRAY_FIRST_USE, &mddev->flags); in rs_setup_takeover()
2748 rdev->new_data_offset = new_data_offset; in rs_setup_takeover()
2758 struct mddev *mddev = &rs->md; in rs_prepare_reshape()
2761 if (rs->raid_disks != mddev->raid_disks && in rs_prepare_reshape()
2762 __is_raid10_near(mddev->layout) && in rs_prepare_reshape()
2763 rs->raid10_copies && in rs_prepare_reshape()
2764 rs->raid10_copies != __raid10_near_copies(mddev->layout)) { in rs_prepare_reshape()
2771 if (rs->raid_disks % rs->raid10_copies) { in rs_prepare_reshape()
2772 rs->ti->error = "Can't reshape raid10 mirror groups"; in rs_prepare_reshape()
2773 return -EINVAL; in rs_prepare_reshape()
2776 /* Userpace reordered disks to add/remove mirrors -> adjust raid_disk indexes */ in rs_prepare_reshape()
2778 mddev->layout = raid10_format_to_md_layout(rs, ALGORITHM_RAID10_NEAR, in rs_prepare_reshape()
2779 rs->raid10_copies); in rs_prepare_reshape()
2780 mddev->new_layout = mddev->layout; in rs_prepare_reshape()
2789 if (rs->delta_disks) { in rs_prepare_reshape()
2791 mddev->degraded = rs->delta_disks < 0 ? -rs->delta_disks : rs->delta_disks; in rs_prepare_reshape()
2795 mddev->raid_disks = rs->raid_disks; in rs_prepare_reshape()
2799 rs->ti->error = "Called with bogus raid type"; in rs_prepare_reshape()
2800 return -EINVAL; in rs_prepare_reshape()
2804 set_bit(RT_FLAG_RESHAPE_RS, &rs->runtime_flags); in rs_prepare_reshape()
2805 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in rs_prepare_reshape()
2806 } else if (mddev->raid_disks < rs->raid_disks) in rs_prepare_reshape()
2808 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in rs_prepare_reshape()
2819 rdev_for_each(rdev, &rs->md) in _get_reshape_sectors()
2820 if (!test_bit(Journal, &rdev->flags)) { in _get_reshape_sectors()
2821 reshape_sectors = (rdev->data_offset > rdev->new_data_offset) ? in _get_reshape_sectors()
2822 rdev->data_offset - rdev->new_data_offset : in _get_reshape_sectors()
2823 rdev->new_data_offset - rdev->data_offset; in _get_reshape_sectors()
2827 return max(reshape_sectors, (sector_t) rs->data_offset); in _get_reshape_sectors()
2832 * - change raid layout
2833 * - change chunk size
2834 * - add disks
2835 * - remove disks
2842 struct mddev *mddev = &rs->md; in rs_setup_reshape()
2845 mddev->delta_disks = rs->delta_disks; in rs_setup_reshape()
2846 cur_raid_devs = mddev->raid_disks; in rs_setup_reshape()
2849 if (mddev->delta_disks && in rs_setup_reshape()
2850 mddev->layout != mddev->new_layout) { in rs_setup_reshape()
2851 DMINFO("Ignoring invalid layout change with delta_disks=%d", rs->delta_disks); in rs_setup_reshape()
2852 mddev->new_layout = mddev->layout; in rs_setup_reshape()
2858 * - in case of adding disk(s), array size has in rs_setup_reshape()
2864 * - in case of removing disk(s), array size in rs_setup_reshape()
2870 * - data_offset and new_data_offset are in rs_setup_reshape()
2878 if (rs->delta_disks > 0) { in rs_setup_reshape()
2880 for (d = cur_raid_devs; d < rs->raid_disks; d++) { in rs_setup_reshape()
2881 rdev = &rs->dev[d].rdev; in rs_setup_reshape()
2882 clear_bit(In_sync, &rdev->flags); in rs_setup_reshape()
2885 * save_raid_disk needs to be -1, or recovery_offset will be set to 0 in rs_setup_reshape()
2888 rdev->saved_raid_disk = -1; in rs_setup_reshape()
2889 rdev->raid_disk = d; in rs_setup_reshape()
2891 rdev->sectors = mddev->dev_sectors; in rs_setup_reshape()
2892 rdev->recovery_offset = rs_is_raid1(rs) ? 0 : MaxSector; in rs_setup_reshape()
2895 mddev->reshape_backwards = 0; /* adding disk(s) -> forward reshape */ in rs_setup_reshape()
2898 } else if (rs->delta_disks < 0) { in rs_setup_reshape()
2899 r = rs_set_dev_and_array_sectors(rs, rs->ti->len, true); in rs_setup_reshape()
2900 mddev->reshape_backwards = 1; /* removing disk(s) -> backward reshape */ in rs_setup_reshape()
2905 * Reshape layout (e.g. raid5_ls -> raid5_n) and/or chunk size: in rs_setup_reshape()
2907 * keeping number of disks and do layout change -> in rs_setup_reshape()
2911 * - free space upfront -> reshape forward in rs_setup_reshape()
2913 * - free space at the end -> reshape backward in rs_setup_reshape()
2922 * add disk(s) -> begin in rs_setup_reshape()
2923 * remove disk(s)-> end in rs_setup_reshape()
2925 mddev->reshape_backwards = rs->dev[0].rdev.data_offset ? 0 : 1; in rs_setup_reshape()
2932 if (!mddev->reshape_backwards) in rs_setup_reshape()
2933 rdev_for_each(rdev, &rs->md) in rs_setup_reshape()
2934 if (!test_bit(Journal, &rdev->flags)) in rs_setup_reshape()
2935 rdev->sectors += reshape_sectors; in rs_setup_reshape()
2943 * changes -> reset the latter.
2949 rs->md.delta_disks = 0; in rs_reset_inconclusive_reshape()
2950 rs->md.reshape_backwards = 0; in rs_reset_inconclusive_reshape()
2962 struct dm_target *ti = rs->ti; in configure_discard_support()
2969 for (i = 0; i < rs->raid_disks; i++) { in configure_discard_support()
2970 if (!rs->dev[i].rdev.bdev || in configure_discard_support()
2971 !bdev_max_discard_sectors(rs->dev[i].rdev.bdev)) in configure_discard_support()
2977 DMERR("Set dm-raid.devices_handle_discard_safely=Y to override."); in configure_discard_support()
2983 ti->num_discard_bios = 1; in configure_discard_support()
3017 ti->error = "No arguments"; in raid_ctr()
3018 return -EINVAL; in raid_ctr()
3023 ti->error = "Unrecognised raid_type"; in raid_ctr()
3024 return -EINVAL; in raid_ctr()
3028 if (dm_read_arg_group(_args, &as, &num_raid_params, &ti->error)) in raid_ctr()
3029 return -EINVAL; in raid_ctr()
3034 _args[1].max = (as_nrd.argc - 1) / 2; in raid_ctr()
3035 if (dm_read_arg(_args + 1, &as_nrd, &num_raid_devs, &ti->error)) in raid_ctr()
3036 return -EINVAL; in raid_ctr()
3039 ti->error = "Invalid number of supplied raid devices"; in raid_ctr()
3040 return -EINVAL; in raid_ctr()
3055 rs->md.sync_super = super_sync; in raid_ctr()
3063 r = rs_set_dev_and_array_sectors(rs, rs->ti->len, false); in raid_ctr()
3068 rs->array_sectors = rs->md.array_sectors; in raid_ctr()
3069 rs->dev_sectors = rs->md.dev_sectors; in raid_ctr()
3082 /* All in-core metadata now as of current superblocks after calling analyse_superblocks() */ in raid_ctr()
3083 sb_array_sectors = rs->md.array_sectors; in raid_ctr()
3086 ti->error = "Invalid rdev size"; in raid_ctr()
3087 r = -EINVAL; in raid_ctr()
3093 if (rs->dev_sectors != rdev_sectors) { in raid_ctr()
3094 resize = (rs->dev_sectors != rdev_sectors - reshape_sectors); in raid_ctr()
3095 if (rs->dev_sectors > rdev_sectors - reshape_sectors) in raid_ctr()
3096 set_bit(RT_FLAG_RS_GROW, &rs->runtime_flags); in raid_ctr()
3099 INIT_WORK(&rs->md.event_work, do_table_event); in raid_ctr()
3100 ti->private = rs; in raid_ctr()
3101 ti->num_flush_bios = 1; in raid_ctr()
3102 ti->needs_bio_set_dev = true; in raid_ctr()
3113 if (test_bit(MD_ARRAY_FIRST_USE, &rs->md.flags)) { in raid_ctr()
3114 /* A new raid6 set has to be recovered to ensure proper parity and Q-Syndrome */ in raid_ctr()
3116 test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags)) { in raid_ctr()
3117 ti->error = "'nosync' not allowed for new raid6 set"; in raid_ctr()
3118 r = -EINVAL; in raid_ctr()
3122 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in raid_ctr()
3130 ti->error = "Can't resize a reshaping raid set"; in raid_ctr()
3131 r = -EPERM; in raid_ctr()
3137 ti->error = "Can't takeover a reshaping raid set"; in raid_ctr()
3138 r = -EPERM; in raid_ctr()
3143 if (test_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags)) { in raid_ctr()
3144 ti->error = "Can't takeover a journaled raid4/5/6 set"; in raid_ctr()
3145 r = -EPERM; in raid_ctr()
3154 * one, prohibit requesting recovery, allow the raid in raid_ctr()
3165 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in raid_ctr()
3166 /* Takeover ain't recovery, so disable recovery */ in raid_ctr()
3171 clear_bit(RT_FLAG_RS_GROW, &rs->runtime_flags); in raid_ctr()
3179 if (test_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags)) { in raid_ctr()
3180 ti->error = "Can't reshape a journaled raid4/5/6 set"; in raid_ctr()
3181 r = -EPERM; in raid_ctr()
3185 /* Out-of-place space has to be available to allow for a reshape unless raid1! */ in raid_ctr()
3198 /* Reshaping ain't recovery, so disable recovery */ in raid_ctr()
3204 /* May not set recovery when a device rebuild is requested */ in raid_ctr()
3205 if (test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags)) { in raid_ctr()
3206 clear_bit(RT_FLAG_RS_GROW, &rs->runtime_flags); in raid_ctr()
3207 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in raid_ctr()
3209 } else if (test_bit(RT_FLAG_RS_GROW, &rs->runtime_flags)) { in raid_ctr()
3218 …rs_setup_recovery(rs, rs->md.recovery_cp < rs->md.dev_sectors ? rs->md.recovery_cp : rs->md.dev_se… in raid_ctr()
3221 r = rs_set_dev_and_array_sectors(rs, rs->ti->len, false); in raid_ctr()
3225 if (sb_array_sectors > rs->array_sectors) in raid_ctr()
3226 set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags); in raid_ctr()
3239 /* Start raid set read-only and assumed clean to change in raid_resume() */ in raid_ctr()
3240 rs->md.ro = 1; in raid_ctr()
3241 rs->md.in_sync = 1; in raid_ctr()
3244 set_bit(MD_RECOVERY_FROZEN, &rs->md.recovery); in raid_ctr()
3247 mddev_suspend_and_lock_nointr(&rs->md); in raid_ctr()
3248 r = md_run(&rs->md); in raid_ctr()
3249 rs->md.in_sync = 0; /* Assume already marked dirty */ in raid_ctr()
3251 ti->error = "Failed to run raid array"; in raid_ctr()
3252 mddev_unlock(&rs->md); in raid_ctr()
3256 r = md_start(&rs->md); in raid_ctr()
3258 ti->error = "Failed to start raid array"; in raid_ctr()
3262 /* If raid4/5/6 journal mode explicitly requested (only possible with journal dev) -> set it */ in raid_ctr()
3263 if (test_bit(__CTR_FLAG_JOURNAL_MODE, &rs->ctr_flags)) { in raid_ctr()
3264 r = r5c_journal_mode_set(&rs->md, rs->journal_dev.mode); in raid_ctr()
3266 ti->error = "Failed to set raid4/5/6 journal mode"; in raid_ctr()
3271 set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags); in raid_ctr()
3281 if (test_bit(RT_FLAG_RESHAPE_RS, &rs->runtime_flags)) { in raid_ctr()
3289 if (rs->md.pers->start_reshape) { in raid_ctr()
3290 r = rs->md.pers->check_reshape(&rs->md); in raid_ctr()
3292 ti->error = "Reshape check failed"; in raid_ctr()
3301 mddev_unlock(&rs->md); in raid_ctr()
3305 md_stop(&rs->md); in raid_ctr()
3306 mddev_unlock(&rs->md); in raid_ctr()
3315 struct raid_set *rs = ti->private; in raid_dtr()
3317 mddev_lock_nointr(&rs->md); in raid_dtr()
3318 md_stop(&rs->md); in raid_dtr()
3319 mddev_unlock(&rs->md); in raid_dtr()
3321 if (work_pending(&rs->md.event_work)) in raid_dtr()
3322 flush_work(&rs->md.event_work); in raid_dtr()
3328 struct raid_set *rs = ti->private; in raid_map()
3329 struct mddev *mddev = &rs->md; in raid_map()
3332 * If we're reshaping to add disk(s)), ti->len and in raid_map()
3333 * mddev->array_sectors will differ during the process in raid_map()
3334 * (ti->len > mddev->array_sectors), so we have to requeue in raid_map()
3335 * bios with addresses > mddev->array_sectors here or in raid_map()
3339 if (unlikely(bio_end_sector(bio) > mddev->array_sectors)) in raid_map()
3362 return __within_range(state, 0, ARRAY_SIZE(sync_strs) - 1) ? sync_strs[state] : "undef"; in sync_str()
3365 /* Return enum sync_state for @mddev derived from @recovery flags */
3366 static enum sync_state decipher_sync_action(struct mddev *mddev, unsigned long recovery) in decipher_sync_action() argument
3368 if (test_bit(MD_RECOVERY_FROZEN, &recovery)) in decipher_sync_action()
3372 if (!test_bit(MD_RECOVERY_DONE, &recovery) && in decipher_sync_action()
3373 (test_bit(MD_RECOVERY_RUNNING, &recovery) || in decipher_sync_action()
3374 (!mddev->ro && test_bit(MD_RECOVERY_NEEDED, &recovery)))) { in decipher_sync_action()
3375 if (test_bit(MD_RECOVERY_RESHAPE, &recovery)) in decipher_sync_action()
3378 if (test_bit(MD_RECOVERY_SYNC, &recovery)) { in decipher_sync_action()
3379 if (!test_bit(MD_RECOVERY_REQUESTED, &recovery)) in decipher_sync_action()
3381 if (test_bit(MD_RECOVERY_CHECK, &recovery)) in decipher_sync_action()
3386 if (test_bit(MD_RECOVERY_RECOVER, &recovery)) in decipher_sync_action()
3389 if (mddev->reshape_position != MaxSector) in decipher_sync_action()
3402 * 'a' = Alive but not in-sync raid set component _or_ alive raid4/5/6 'write_back' journal device
3403 * 'A' = Alive and in-sync raid set component _or_ alive raid4/5/6 'write_through' journal device
3404 * '-' = Non-existing device (i.e. uspace passed '- -' into the ctr)
3408 if (!rdev->bdev) in __raid_dev_status()
3409 return "-"; in __raid_dev_status()
3410 else if (test_bit(Faulty, &rdev->flags)) in __raid_dev_status()
3412 else if (test_bit(Journal, &rdev->flags)) in __raid_dev_status()
3413 return (rs->journal_dev.mode == R5C_JOURNAL_MODE_WRITE_THROUGH) ? "A" : "a"; in __raid_dev_status()
3414 else if (test_bit(RT_FLAG_RS_RESYNCING, &rs->runtime_flags) || in __raid_dev_status()
3415 (!test_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags) && in __raid_dev_status()
3416 !test_bit(In_sync, &rdev->flags))) in __raid_dev_status()
3423 static sector_t rs_get_progress(struct raid_set *rs, unsigned long recovery, in rs_get_progress() argument
3427 struct mddev *mddev = &rs->md; in rs_get_progress()
3429 clear_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); in rs_get_progress()
3430 clear_bit(RT_FLAG_RS_RESYNCING, &rs->runtime_flags); in rs_get_progress()
3434 set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); in rs_get_progress()
3437 if (state == st_idle && !test_bit(MD_RECOVERY_INTR, &recovery)) in rs_get_progress()
3438 r = mddev->recovery_cp; in rs_get_progress()
3440 r = mddev->curr_resync_completed; in rs_get_progress()
3447 if (test_bit(MD_RECOVERY_RECOVER, &recovery)) in rs_get_progress()
3448 set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); in rs_get_progress()
3455 * Already retrieved recovery offset from curr_resync_completed above. in rs_get_progress()
3465 set_bit(RT_FLAG_RS_RESYNCING, &rs->runtime_flags); in rs_get_progress()
3473 set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); in rs_get_progress()
3475 else if (test_bit(MD_RECOVERY_NEEDED, &recovery)) in rs_get_progress()
3477 * We are idle and recovery is needed, prevent 'A' chars race in rs_get_progress()
3478 * caused by components still set to in-sync by constructor. in rs_get_progress()
3480 set_bit(RT_FLAG_RS_RESYNCING, &rs->runtime_flags); in rs_get_progress()
3491 set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); in rs_get_progress()
3493 if (!test_bit(Journal, &rdev->flags) && in rs_get_progress()
3494 !test_bit(In_sync, &rdev->flags)) { in rs_get_progress()
3495 clear_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags); in rs_get_progress()
3504 /* Helper to return @dev name or "-" if !@dev */
3507 return dev ? dev->name : "-"; in __get_dev_name()
3513 struct raid_set *rs = ti->private; in raid_status()
3514 struct mddev *mddev = &rs->md; in raid_status()
3515 struct r5conf *conf = rs_is_raid456(rs) ? mddev->private : NULL; in raid_status()
3516 int i, max_nr_stripes = conf ? conf->max_nr_stripes : 0; in raid_status()
3517 unsigned long recovery; in raid_status() local
3528 rt = get_raid_type_by_ll(mddev->new_level, mddev->new_layout); in raid_status()
3532 DMEMIT("%s %d ", rt->name, mddev->raid_disks); in raid_status()
3537 resync_max_sectors = test_bit(RT_FLAG_RS_PRERESUMED, &rs->runtime_flags) ? in raid_status()
3538 mddev->resync_max_sectors : mddev->dev_sectors; in raid_status()
3539 recovery = rs->md.recovery; in raid_status()
3540 state = decipher_sync_action(mddev, recovery); in raid_status()
3541 progress = rs_get_progress(rs, recovery, state, resync_max_sectors); in raid_status()
3542 resync_mismatches = (mddev->last_sync_action && !strcasecmp(mddev->last_sync_action, "check")) ? in raid_status()
3543 atomic64_read(&mddev->resync_mismatches) : 0; in raid_status()
3545 /* HM FIXME: do we want another state char for raid0? It shows 'D'/'A'/'-' now */ in raid_status()
3546 for (i = 0; i < rs->raid_disks; i++) in raid_status()
3547 DMEMIT(__raid_dev_status(rs, &rs->dev[i].rdev)); in raid_status()
3550 * In-sync/Reshape ratio: in raid_status()
3551 * The in-sync ratio shows the progress of: in raid_status()
3552 * - Initializing the raid set in raid_status()
3553 * - Rebuilding a subset of devices of the raid set in raid_status()
3568 * See Documentation/admin-guide/device-mapper/dm-raid.rst for in raid_status()
3592 DMEMIT(" %llu", (unsigned long long) rs->dev[0].rdev.data_offset); in raid_status()
3597 DMEMIT(" %s", test_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags) ? in raid_status()
3598 __raid_dev_status(rs, &rs->journal_dev.rdev) : "-"); in raid_status()
3608 for (i = 0; i < rs->raid_disks; i++) { in raid_status()
3609 rebuild_writemostly_count += (test_bit(i, (void *) rs->rebuild_disks) ? 2 : 0) + in raid_status()
3610 (test_bit(WriteMostly, &rs->dev[i].rdev.flags) ? 2 : 0); in raid_status()
3612 rebuild_writemostly_count -= (test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags) ? 2 : 0) + in raid_status()
3613 (test_bit(__CTR_FLAG_WRITE_MOSTLY, &rs->ctr_flags) ? 2 : 0); in raid_status()
3616 hweight32(rs->ctr_flags & CTR_FLAG_OPTIONS_NO_ARGS) + in raid_status()
3617 hweight32(rs->ctr_flags & CTR_FLAG_OPTIONS_ONE_ARG) * 2; in raid_status()
3620 DMEMIT("%s %u %u", rs->raid_type->name, raid_param_cnt, mddev->new_chunk_sectors); in raid_status()
3621 if (test_bit(__CTR_FLAG_SYNC, &rs->ctr_flags)) in raid_status()
3623 if (test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags)) in raid_status()
3625 if (test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags)) in raid_status()
3626 for (i = 0; i < rs->raid_disks; i++) in raid_status()
3627 if (test_bit(i, (void *) rs->rebuild_disks)) in raid_status()
3629 if (test_bit(__CTR_FLAG_DAEMON_SLEEP, &rs->ctr_flags)) in raid_status()
3631 mddev->bitmap_info.daemon_sleep); in raid_status()
3632 if (test_bit(__CTR_FLAG_MIN_RECOVERY_RATE, &rs->ctr_flags)) in raid_status()
3634 mddev->sync_speed_min); in raid_status()
3635 if (test_bit(__CTR_FLAG_MAX_RECOVERY_RATE, &rs->ctr_flags)) in raid_status()
3637 mddev->sync_speed_max); in raid_status()
3638 if (test_bit(__CTR_FLAG_WRITE_MOSTLY, &rs->ctr_flags)) in raid_status()
3639 for (i = 0; i < rs->raid_disks; i++) in raid_status()
3640 if (test_bit(WriteMostly, &rs->dev[i].rdev.flags)) in raid_status()
3642 rs->dev[i].rdev.raid_disk); in raid_status()
3643 if (test_bit(__CTR_FLAG_MAX_WRITE_BEHIND, &rs->ctr_flags)) in raid_status()
3645 mddev->bitmap_info.max_write_behind); in raid_status()
3646 if (test_bit(__CTR_FLAG_STRIPE_CACHE, &rs->ctr_flags)) in raid_status()
3649 if (test_bit(__CTR_FLAG_REGION_SIZE, &rs->ctr_flags)) in raid_status()
3651 (unsigned long long) to_sector(mddev->bitmap_info.chunksize)); in raid_status()
3652 if (test_bit(__CTR_FLAG_RAID10_COPIES, &rs->ctr_flags)) in raid_status()
3654 raid10_md_layout_to_copies(mddev->layout)); in raid_status()
3655 if (test_bit(__CTR_FLAG_RAID10_FORMAT, &rs->ctr_flags)) in raid_status()
3657 raid10_md_layout_to_format(mddev->layout)); in raid_status()
3658 if (test_bit(__CTR_FLAG_DELTA_DISKS, &rs->ctr_flags)) in raid_status()
3660 max(rs->delta_disks, mddev->delta_disks)); in raid_status()
3661 if (test_bit(__CTR_FLAG_DATA_OFFSET, &rs->ctr_flags)) in raid_status()
3663 (unsigned long long) rs->data_offset); in raid_status()
3664 if (test_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags)) in raid_status()
3666 __get_dev_name(rs->journal_dev.dev)); in raid_status()
3667 if (test_bit(__CTR_FLAG_JOURNAL_MODE, &rs->ctr_flags)) in raid_status()
3669 md_journal_mode_to_dm_raid(rs->journal_dev.mode)); in raid_status()
3670 DMEMIT(" %d", rs->raid_disks); in raid_status()
3671 for (i = 0; i < rs->raid_disks; i++) in raid_status()
3672 DMEMIT(" %s %s", __get_dev_name(rs->dev[i].meta_dev), in raid_status()
3673 __get_dev_name(rs->dev[i].data_dev)); in raid_status()
3677 rt = get_raid_type_by_ll(mddev->new_level, mddev->new_layout); in raid_status()
3681 DMEMIT_TARGET_NAME_VERSION(ti->type); in raid_status()
3682 DMEMIT(",raid_type=%s,raid_disks=%d", rt->name, mddev->raid_disks); in raid_status()
3686 recovery = rs->md.recovery; in raid_status()
3687 state = decipher_sync_action(mddev, recovery); in raid_status()
3690 for (i = 0; i < rs->raid_disks; i++) { in raid_status()
3692 DMEMIT(__raid_dev_status(rs, &rs->dev[i].rdev)); in raid_status()
3697 switch (rs->journal_dev.mode) { in raid_status()
3719 struct raid_set *rs = ti->private; in raid_message()
3720 struct mddev *mddev = &rs->md; in raid_message()
3722 if (!mddev->pers || !mddev->pers->sync_request) in raid_message()
3723 return -EINVAL; in raid_message()
3726 set_bit(MD_RECOVERY_FROZEN, &mddev->recovery); in raid_message()
3728 clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery); in raid_message()
3731 if (mddev->sync_thread) { in raid_message()
3732 set_bit(MD_RECOVERY_INTR, &mddev->recovery); in raid_message()
3735 } else if (decipher_sync_action(mddev, mddev->recovery) != st_idle) in raid_message()
3736 return -EBUSY; in raid_message()
3740 set_bit(MD_RECOVERY_RECOVER, &mddev->recovery); in raid_message()
3743 set_bit(MD_RECOVERY_CHECK, &mddev->recovery); in raid_message()
3744 set_bit(MD_RECOVERY_REQUESTED, &mddev->recovery); in raid_message()
3745 set_bit(MD_RECOVERY_SYNC, &mddev->recovery); in raid_message()
3747 set_bit(MD_RECOVERY_REQUESTED, &mddev->recovery); in raid_message()
3748 set_bit(MD_RECOVERY_SYNC, &mddev->recovery); in raid_message()
3750 return -EINVAL; in raid_message()
3752 if (mddev->ro == 2) { in raid_message()
3754 * canceling read-auto mode in raid_message()
3756 mddev->ro = 0; in raid_message()
3757 if (!mddev->suspended) in raid_message()
3758 md_wakeup_thread(mddev->sync_thread); in raid_message()
3760 set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); in raid_message()
3761 if (!mddev->suspended) in raid_message()
3762 md_wakeup_thread(mddev->thread); in raid_message()
3770 struct raid_set *rs = ti->private; in raid_iterate_devices()
3774 for (i = 0; !r && i < rs->raid_disks; i++) { in raid_iterate_devices()
3775 if (rs->dev[i].data_dev) { in raid_iterate_devices()
3776 r = fn(ti, rs->dev[i].data_dev, in raid_iterate_devices()
3778 rs->md.dev_sectors, data); in raid_iterate_devices()
3787 struct raid_set *rs = ti->private; in raid_io_hints()
3788 unsigned int chunk_size_bytes = to_bytes(rs->md.chunk_sectors); in raid_io_hints()
3796 struct raid_set *rs = ti->private; in raid_postsuspend()
3798 if (!test_and_set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags)) { in raid_postsuspend()
3800 if (!test_bit(MD_RECOVERY_FROZEN, &rs->md.recovery)) in raid_postsuspend()
3801 md_stop_writes(&rs->md); in raid_postsuspend()
3803 mddev_suspend(&rs->md, false); in raid_postsuspend()
3814 struct mddev *mddev = &rs->md; in attempt_restore_of_faulty_devices()
3818 if (!mddev->pers || !mddev->pers->hot_add_disk || !mddev->pers->hot_remove_disk) in attempt_restore_of_faulty_devices()
3823 for (i = 0; i < rs->raid_disks; i++) { in attempt_restore_of_faulty_devices()
3824 r = &rs->dev[i].rdev; in attempt_restore_of_faulty_devices()
3825 /* HM FIXME: enhance journal device recovery processing */ in attempt_restore_of_faulty_devices()
3826 if (test_bit(Journal, &r->flags)) in attempt_restore_of_faulty_devices()
3829 if (test_bit(Faulty, &r->flags) && in attempt_restore_of_faulty_devices()
3830 r->meta_bdev && !read_disk_sb(r, r->sb_size, true)) { in attempt_restore_of_faulty_devices()
3833 rs->raid_type->name, i); in attempt_restore_of_faulty_devices()
3841 * '>= 0' - meaning we must call this function in attempt_restore_of_faulty_devices()
3844 flags = r->flags; in attempt_restore_of_faulty_devices()
3845 clear_bit(In_sync, &r->flags); /* Mandatory for hot remove. */ in attempt_restore_of_faulty_devices()
3846 if (r->raid_disk >= 0) { in attempt_restore_of_faulty_devices()
3847 if (mddev->pers->hot_remove_disk(mddev, r)) { in attempt_restore_of_faulty_devices()
3849 r->flags = flags; in attempt_restore_of_faulty_devices()
3853 r->raid_disk = r->saved_raid_disk = i; in attempt_restore_of_faulty_devices()
3855 clear_bit(Faulty, &r->flags); in attempt_restore_of_faulty_devices()
3856 clear_bit(WriteErrorSeen, &r->flags); in attempt_restore_of_faulty_devices()
3858 if (mddev->pers->hot_add_disk(mddev, r)) { in attempt_restore_of_faulty_devices()
3860 r->raid_disk = r->saved_raid_disk = -1; in attempt_restore_of_faulty_devices()
3861 r->flags = flags; in attempt_restore_of_faulty_devices()
3863 clear_bit(In_sync, &r->flags); in attempt_restore_of_faulty_devices()
3864 r->recovery_offset = 0; in attempt_restore_of_faulty_devices()
3875 rdev_for_each(r, &rs->md) { in attempt_restore_of_faulty_devices()
3876 if (test_bit(Journal, &r->flags)) in attempt_restore_of_faulty_devices()
3879 sb = page_address(r->sb_page); in attempt_restore_of_faulty_devices()
3896 !test_and_set_bit(RT_FLAG_RS_BITMAP_LOADED, &rs->runtime_flags)) { in __load_dirty_region_bitmap()
3897 r = md_bitmap_load(&rs->md); in __load_dirty_region_bitmap()
3908 struct mddev *mddev = &rs->md; in rs_update_sbs()
3909 int ro = mddev->ro; in rs_update_sbs()
3911 set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags); in rs_update_sbs()
3912 mddev->ro = 0; in rs_update_sbs()
3914 mddev->ro = ro; in rs_update_sbs()
3919 * (e.g. raid6_zr -> raid6_nc), changes stripe size, adds/removes
3927 struct mddev *mddev = &rs->md; in rs_start_reshape()
3928 struct md_personality *pers = mddev->pers; in rs_start_reshape()
3931 set_bit(MD_RECOVERY_WAIT, &mddev->recovery); in rs_start_reshape()
3940 * May as well already kick the reshape off so that * pers->start_reshape() becomes optional. in rs_start_reshape()
3942 r = pers->check_reshape(mddev); in rs_start_reshape()
3944 rs->ti->error = "pers->check_reshape() failed"; in rs_start_reshape()
3952 if (pers->start_reshape) { in rs_start_reshape()
3953 r = pers->start_reshape(mddev); in rs_start_reshape()
3955 rs->ti->error = "pers->start_reshape() failed"; in rs_start_reshape()
3973 struct raid_set *rs = ti->private; in raid_preresume()
3974 struct mddev *mddev = &rs->md; in raid_preresume()
3976 /* This is a resume after a suspend of the set -> it's already started. */ in raid_preresume()
3977 if (test_and_set_bit(RT_FLAG_RS_PRERESUMED, &rs->runtime_flags)) in raid_preresume()
3986 if (test_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags)) in raid_preresume()
3995 if (test_bit(RT_FLAG_RS_GROW, &rs->runtime_flags)) { in raid_preresume()
3996 mddev->array_sectors = rs->array_sectors; in raid_preresume()
3997 mddev->dev_sectors = rs->dev_sectors; in raid_preresume()
4003 if (test_bit(RT_FLAG_RS_BITMAP_LOADED, &rs->runtime_flags) && mddev->bitmap && in raid_preresume()
4004 (test_bit(RT_FLAG_RS_GROW, &rs->runtime_flags) || in raid_preresume()
4005 (rs->requested_bitmap_chunk_sectors && in raid_preresume()
4006 mddev->bitmap_info.chunksize != to_bytes(rs->requested_bitmap_chunk_sectors)))) { in raid_preresume()
4007 int chunksize = to_bytes(rs->requested_bitmap_chunk_sectors) ?: mddev->bitmap_info.chunksize; in raid_preresume()
4009 r = md_bitmap_resize(mddev->bitmap, mddev->dev_sectors, chunksize, 0); in raid_preresume()
4016 set_bit(MD_RECOVERY_FROZEN, &mddev->recovery); in raid_preresume()
4017 if (mddev->recovery_cp && mddev->recovery_cp < MaxSector) { in raid_preresume()
4018 set_bit(MD_RECOVERY_REQUESTED, &mddev->recovery); in raid_preresume()
4019 mddev->resync_min = mddev->recovery_cp; in raid_preresume()
4020 if (test_bit(RT_FLAG_RS_GROW, &rs->runtime_flags)) in raid_preresume()
4021 mddev->resync_max_sectors = mddev->dev_sectors; in raid_preresume()
4025 if (test_bit(RT_FLAG_RESHAPE_RS, &rs->runtime_flags)) { in raid_preresume()
4041 struct raid_set *rs = ti->private; in raid_resume()
4042 struct mddev *mddev = &rs->md; in raid_resume()
4044 if (test_and_set_bit(RT_FLAG_RS_RESUMED, &rs->runtime_flags)) { in raid_resume()
4053 if (test_and_clear_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags)) { in raid_resume()
4055 if (mddev->delta_disks < 0) in raid_resume()
4059 clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery); in raid_resume()
4060 mddev->ro = 0; in raid_resume()
4061 mddev->in_sync = 0; in raid_resume()
4088 MODULE_ALIAS("dm-raid0");
4089 MODULE_ALIAS("dm-raid1");
4090 MODULE_ALIAS("dm-raid10");
4091 MODULE_ALIAS("dm-raid4");
4092 MODULE_ALIAS("dm-raid5");
4093 MODULE_ALIAS("dm-raid6");
4094 MODULE_AUTHOR("Neil Brown <dm-devel@redhat.com>");
4095 MODULE_AUTHOR("Heinz Mauelshagen <dm-devel@redhat.com>");