mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-17 11:55:19 +00:00
31d228a2eb
Since commitc11e36a29e("Btrfs-progs: Do not force mixed block group creation unless '-M' option is specified"), mkfs no longer use mixed block group unless specified manually. This breaks the minimal device size calculation, which only considered mixed block group use case. This patch enhances minimal device size calculation for mkfs, by using different minimal stripe length (calculated from code) for different profiles, and use them to calculate minimal device size. Reported-by: Wesley Aptekar-Cassels <W.Aptekar@gmail.com> Fixes:c11e36a29e("Btrfs-progs: Do not force mixed block group creation unless '-M' option is specified") Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com> [ updated comments ] Signed-off-by: David Sterba <dsterba@suse.com>
79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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/*
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* Defines and function declarations for users of the mkfs API, no internal
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* defintions.
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*/
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#ifndef __BTRFS_MKFS_COMMON_H__
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#define __BTRFS_MKFS_COMMON_H__
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#include "kerncompat.h"
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#include "common-defs.h"
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#define BTRFS_MKFS_SYSTEM_GROUP_SIZE SZ_4M
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#define BTRFS_MKFS_SMALL_VOLUME_SIZE SZ_1G
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/*
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* Tree root blocks created during mkfs
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*/
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enum btrfs_mkfs_block {
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MKFS_SUPER_BLOCK = 0,
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MKFS_ROOT_TREE,
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MKFS_EXTENT_TREE,
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MKFS_CHUNK_TREE,
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MKFS_DEV_TREE,
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MKFS_FS_TREE,
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MKFS_CSUM_TREE,
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MKFS_BLOCK_COUNT
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};
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struct btrfs_mkfs_config {
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/* Label of the new filesystem */
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const char *label;
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/* Blck sizes */
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u32 nodesize;
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u32 sectorsize;
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u32 stripesize;
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/* Bitfield of incompat features, BTRFS_FEATURE_INCOMPAT_* */
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u64 features;
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/* Size of the filesystem in bytes */
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u64 num_bytes;
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/* Output fields, set during creation */
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/* Logical addresses of superblock [0] and other tree roots */
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u64 blocks[MKFS_BLOCK_COUNT + 1];
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char fs_uuid[BTRFS_UUID_UNPARSED_SIZE];
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char chunk_uuid[BTRFS_UUID_UNPARSED_SIZE];
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/* Superblock offset after make_btrfs */
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u64 super_bytenr;
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};
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int make_btrfs(int fd, struct btrfs_mkfs_config *cfg);
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u64 btrfs_min_dev_size(u32 nodesize, int mixed, u64 meta_profile,
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u64 data_profile);
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int test_minimum_size(const char *file, u64 min_dev_size);
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int is_vol_small(const char *file);
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int test_num_disk_vs_raid(u64 metadata_profile, u64 data_profile,
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u64 dev_cnt, int mixed, int ssd);
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int test_status_for_mkfs(const char *file, bool force_overwrite);
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int test_dev_for_mkfs(const char *file, int force_overwrite);
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#endif
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