From: Heinz Mauelshagen <[email protected]> Upstream commit 3a1c1ef2fd62087c3d6521de217ddb9360776658 added new table line arguments and introduced an ordering flaw. The sequence of the raid10_copies and raid10_format raid parameters got reversed which causes lvm2 userspace to fail falsely assuming a changed table line.
Sequence those 2 parameters as before so that old lvm2 uspace can function properly with new kernels and adjust the table line output to the defined one as of Documentation/device-mapper/dm-raid.txt. Signed-off-by: Heinz Mauelshagen <[email protected]> --- Documentation/device-mapper/dm-raid.txt | 2 ++ drivers/md/dm-raid.c | 62 +++++++++++++++++---------------- 2 files changed, 34 insertions(+), 30 deletions(-) diff --git a/Documentation/device-mapper/dm-raid.txt b/Documentation/device-mapper/dm-raid.txt index cd2cb2f..9ec88eb 100644 --- a/Documentation/device-mapper/dm-raid.txt +++ b/Documentation/device-mapper/dm-raid.txt @@ -331,3 +331,5 @@ Version History 'D' on the status line. If '- -' is passed into the constructor, emit '- -' on the table line and '-' as the status line health character. 1.10.0 Add support for raid4/5/6 journal device +1.11.0 Fix table line argument order + (wrong raid10_copies/raid10_format sequence) diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index f8564d6..e07185f 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -3382,38 +3382,28 @@ static void raid_status(struct dm_target *ti, status_type_t type, hweight32(rs->ctr_flags & CTR_FLAG_OPTIONS_NO_ARGS) + hweight32(rs->ctr_flags & CTR_FLAG_OPTIONS_ONE_ARG) * 2 + (test_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags) ? 2 : 0); + /* Emit table line */ + /* This has to be in the documented order for userspace! */ DMEMIT("%s %u %u", rs->raid_type->name, raid_param_cnt, mddev->new_chunk_sectors); - if (test_bit(__CTR_FLAG_RAID10_FORMAT, &rs->ctr_flags)) - DMEMIT(" %s %s", dm_raid_arg_name_by_flag(CTR_FLAG_RAID10_FORMAT), - raid10_md_layout_to_format(mddev->layout)); - if (test_bit(__CTR_FLAG_RAID10_COPIES, &rs->ctr_flags)) - DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_RAID10_COPIES), - raid10_md_layout_to_copies(mddev->layout)); - if (test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags)) - DMEMIT(" %s", dm_raid_arg_name_by_flag(CTR_FLAG_NOSYNC)); if (test_bit(__CTR_FLAG_SYNC, &rs->ctr_flags)) DMEMIT(" %s", dm_raid_arg_name_by_flag(CTR_FLAG_SYNC)); - if (test_bit(__CTR_FLAG_REGION_SIZE, &rs->ctr_flags)) - DMEMIT(" %s %llu", dm_raid_arg_name_by_flag(CTR_FLAG_REGION_SIZE), - (unsigned long long) to_sector(mddev->bitmap_info.chunksize)); - if (test_bit(__CTR_FLAG_DATA_OFFSET, &rs->ctr_flags)) - DMEMIT(" %s %llu", dm_raid_arg_name_by_flag(CTR_FLAG_DATA_OFFSET), - (unsigned long long) rs->data_offset); - if (test_bit(__CTR_FLAG_DAEMON_SLEEP, &rs->ctr_flags)) - DMEMIT(" %s %lu", dm_raid_arg_name_by_flag(CTR_FLAG_DAEMON_SLEEP), - mddev->bitmap_info.daemon_sleep); - if (test_bit(__CTR_FLAG_DELTA_DISKS, &rs->ctr_flags)) - DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_DELTA_DISKS), - max(rs->delta_disks, mddev->delta_disks)); - if (test_bit(__CTR_FLAG_STRIPE_CACHE, &rs->ctr_flags)) - DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_STRIPE_CACHE), - max_nr_stripes); + if (test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags)) + DMEMIT(" %s", dm_raid_arg_name_by_flag(CTR_FLAG_NOSYNC)); if (rebuild_disks) for (i = 0; i < rs->raid_disks; i++) if (test_bit(rs->dev[i].rdev.raid_disk, (void *) rs->rebuild_disks)) DMEMIT(" %s %u", dm_raid_arg_name_by_flag(CTR_FLAG_REBUILD), rs->dev[i].rdev.raid_disk); + if (test_bit(__CTR_FLAG_DAEMON_SLEEP, &rs->ctr_flags)) + DMEMIT(" %s %lu", dm_raid_arg_name_by_flag(CTR_FLAG_DAEMON_SLEEP), + mddev->bitmap_info.daemon_sleep); + if (test_bit(__CTR_FLAG_MIN_RECOVERY_RATE, &rs->ctr_flags)) + DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_MIN_RECOVERY_RATE), + mddev->sync_speed_min); + if (test_bit(__CTR_FLAG_MAX_RECOVERY_RATE, &rs->ctr_flags)) + DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_MAX_RECOVERY_RATE), + mddev->sync_speed_max); if (write_mostly_params) for (i = 0; i < rs->raid_disks; i++) if (test_bit(WriteMostly, &rs->dev[i].rdev.flags)) @@ -3422,12 +3412,24 @@ static void raid_status(struct dm_target *ti, status_type_t type, if (test_bit(__CTR_FLAG_MAX_WRITE_BEHIND, &rs->ctr_flags)) DMEMIT(" %s %lu", dm_raid_arg_name_by_flag(CTR_FLAG_MAX_WRITE_BEHIND), mddev->bitmap_info.max_write_behind); - if (test_bit(__CTR_FLAG_MAX_RECOVERY_RATE, &rs->ctr_flags)) - DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_MAX_RECOVERY_RATE), - mddev->sync_speed_max); - if (test_bit(__CTR_FLAG_MIN_RECOVERY_RATE, &rs->ctr_flags)) - DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_MIN_RECOVERY_RATE), - mddev->sync_speed_min); + if (test_bit(__CTR_FLAG_STRIPE_CACHE, &rs->ctr_flags)) + DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_STRIPE_CACHE), + max_nr_stripes); + if (test_bit(__CTR_FLAG_REGION_SIZE, &rs->ctr_flags)) + DMEMIT(" %s %llu", dm_raid_arg_name_by_flag(CTR_FLAG_REGION_SIZE), + (unsigned long long) to_sector(mddev->bitmap_info.chunksize)); + if (test_bit(__CTR_FLAG_RAID10_COPIES, &rs->ctr_flags)) + DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_RAID10_COPIES), + raid10_md_layout_to_copies(mddev->layout)); + if (test_bit(__CTR_FLAG_RAID10_FORMAT, &rs->ctr_flags)) + DMEMIT(" %s %s", dm_raid_arg_name_by_flag(CTR_FLAG_RAID10_FORMAT), + raid10_md_layout_to_format(mddev->layout)); + if (test_bit(__CTR_FLAG_DELTA_DISKS, &rs->ctr_flags)) + DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_DELTA_DISKS), + max(rs->delta_disks, mddev->delta_disks)); + if (test_bit(__CTR_FLAG_DATA_OFFSET, &rs->ctr_flags)) + DMEMIT(" %s %llu", dm_raid_arg_name_by_flag(CTR_FLAG_DATA_OFFSET), + (unsigned long long) rs->data_offset); if (test_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags)) DMEMIT(" %s %s", dm_raid_arg_name_by_flag(CTR_FLAG_JOURNAL_DEV), __get_dev_name(rs->journal_dev.dev)); @@ -3791,7 +3793,7 @@ static void raid_resume(struct dm_target *ti) static struct target_type raid_target = { .name = "raid", - .version = {1, 10, 1}, + .version = {1, 11, 0}, .module = THIS_MODULE, .ctr = raid_ctr, .dtr = raid_dtr, -- 2.9.3 -- dm-devel mailing list [email protected] https://www.redhat.com/mailman/listinfo/dm-devel
