diff options
Diffstat (limited to 'mkfs.c')
| -rw-r--r-- | mkfs.c | 104 |
1 files changed, 41 insertions, 63 deletions
@@ -191,83 +191,28 @@ static int create_raid_groups(struct btrfs_trans_handle *trans, int metadata_profile_opt, int mixed, int ssd) { u64 num_devices = btrfs_super_num_devices(root->fs_info->super_copy); - u64 allowed = 0; - u64 devices_for_raid = num_devices; int ret; - /* - * Set default profiles according to number of added devices. - * For mixed groups defaults are single/single. - */ - if (!metadata_profile_opt && !mixed) { - if (num_devices == 1 && ssd) - printf("Detected a SSD, turning off metadata " - "duplication. Mkfs with -m dup if you want to " - "force metadata duplication.\n"); - metadata_profile = (num_devices > 1) ? - BTRFS_BLOCK_GROUP_RAID1 : (ssd) ? 0: BTRFS_BLOCK_GROUP_DUP; - } - if (!data_profile_opt && !mixed) { - data_profile = (num_devices > 1) ? - BTRFS_BLOCK_GROUP_RAID0 : 0; /* raid0 or single */ - } - - if (devices_for_raid > 4) - devices_for_raid = 4; - - switch (devices_for_raid) { - default: - case 4: - allowed |= BTRFS_BLOCK_GROUP_RAID10; - case 3: - allowed |= BTRFS_BLOCK_GROUP_RAID6; - case 2: - allowed |= BTRFS_BLOCK_GROUP_RAID0 | BTRFS_BLOCK_GROUP_RAID1 | - BTRFS_BLOCK_GROUP_RAID5; - break; - case 1: - allowed |= BTRFS_BLOCK_GROUP_DUP; - } - - if (metadata_profile & ~allowed) { - fprintf(stderr, "unable to create FS with metadata " - "profile %llu (have %llu devices)\n", metadata_profile, - num_devices); - exit(1); - } - if (data_profile & ~allowed) { - fprintf(stderr, "unable to create FS with data " - "profile %llu (have %llu devices)\n", data_profile, - num_devices); - exit(1); - } - - /* allow dup'ed data chunks only in mixed mode */ - if (!mixed && (data_profile & BTRFS_BLOCK_GROUP_DUP)) { - fprintf(stderr, "dup for data is allowed only in mixed mode\n"); - exit(1); - } - - if (allowed & metadata_profile) { + if (metadata_profile) { u64 meta_flags = BTRFS_BLOCK_GROUP_METADATA; ret = create_one_raid_group(trans, root, BTRFS_BLOCK_GROUP_SYSTEM | - (allowed & metadata_profile)); + metadata_profile); BUG_ON(ret); if (mixed) meta_flags |= BTRFS_BLOCK_GROUP_DATA; ret = create_one_raid_group(trans, root, meta_flags | - (allowed & metadata_profile)); + metadata_profile); BUG_ON(ret); } - if (!mixed && num_devices > 1 && (allowed & data_profile)) { + if (!mixed && num_devices > 1 && data_profile) { ret = create_one_raid_group(trans, root, BTRFS_BLOCK_GROUP_DATA | - (allowed & data_profile)); + data_profile); BUG_ON(ret); } recow_roots(trans, root); @@ -1458,14 +1403,48 @@ int main(int ac, char **av) } } - /* if we are here that means all devs are good to btrfsify */ optind = saved_optind; dev_cnt = ac - optind; + file = av[optind++]; + ssd = is_ssd(file); + + /* + * Set default profiles according to number of added devices. + * For mixed groups defaults are single/single. + */ + if (!mixed) { + if (!metadata_profile_opt) { + if (dev_cnt == 1 && ssd) + printf("Detected a SSD, turning off metadata " + "duplication. Mkfs with -m dup if you want to " + "force metadata duplication.\n"); + + metadata_profile = (dev_cnt > 1) ? + BTRFS_BLOCK_GROUP_RAID1 : (ssd) ? + 0: BTRFS_BLOCK_GROUP_DUP; + } + if (!data_profile_opt) { + data_profile = (dev_cnt > 1) ? + BTRFS_BLOCK_GROUP_RAID0 : 0; /* raid0 or single */ + } + } else { + /* this is not needed but just for completeness */ + metadata_profile = 0; + data_profile = 0; + } + + ret = test_num_disk_vs_raid(metadata_profile, data_profile, + dev_cnt, mixed, estr); + if (ret) { + fprintf(stderr, "Error: %s\n", estr); + exit(1); + } + + /* if we are here that means all devs are good to btrfsify */ printf("\nWARNING! - %s IS EXPERIMENTAL\n", BTRFS_BUILD_VERSION); printf("WARNING! - see http://btrfs.wiki.kernel.org before using\n\n"); - file = av[optind++]; dev_cnt--; if (!source_dir_set) { @@ -1508,7 +1487,6 @@ int main(int ac, char **av) dev_block_count = block_count; } - ssd = is_ssd(file); if (mixed) { if (metadata_profile != data_profile) { |