mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-23 22:53:35 +00:00
e460ccd6d1
Currently, only the status of block devices is checked at mkfs, but we should also check for regular files whether they are already formatted or mounted to prevent overwrite accidentally. Device status is checked by test_dev_for_mkfs(). The part which is not related to block device is split from this and used for both block device and regular file. Signed-off-by: Tomohiro Misono <misono.tomohiro@jp.fujitsu.com> 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);
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u64 btrfs_min_global_blk_rsv_size(u32 nodesize);
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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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