btrfs-progs/common/fsfeatures.h
Naohiro Aota 242c8328bc btrfs-progs: zoned: add new ZONED feature flag
With the zoned feature enabled, a zoned block device-aware btrfs
allocates block groups aligned to the device zones and always written in
sequential zones at the zone write pointer position.

It also supports "emulated" zoned mode on a non-zoned device. In the
emulated mode, btrfs emulates conventional zones by slicing the device
into fixed-size zones.

We don't support conversion from the ext4 volume with the zoned feature
because we can't be sure all the converted block groups are aligned to
zone boundaries.

Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2021-05-06 16:41:45 +02:00

60 lines
2.2 KiB
C

/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License v2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 021110-1307, USA.
*/
#ifndef __BTRFS_FSFEATURES_H__
#define __BTRFS_FSFEATURES_H__
#include "kerncompat.h"
#define BTRFS_MKFS_DEFAULT_NODE_SIZE SZ_16K
#define BTRFS_MKFS_DEFAULT_FEATURES \
(BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF \
| BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA)
/*
* Avoid multi-device features (RAID56), mixed block groups, and zoned mode
*/
#define BTRFS_CONVERT_ALLOWED_FEATURES \
(BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF \
| BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL \
| BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO \
| BTRFS_FEATURE_INCOMPAT_COMPRESS_ZSTD \
| BTRFS_FEATURE_INCOMPAT_BIG_METADATA \
| BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF \
| BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA \
| BTRFS_FEATURE_INCOMPAT_NO_HOLES \
| BTRFS_FEATURE_INCOMPAT_ZONED)
#define BTRFS_FEATURE_LIST_ALL (1ULL << 63)
#define BTRFS_RUNTIME_FEATURE_QUOTA (1ULL << 0)
#define BTRFS_RUNTIME_FEATURE_FREE_SPACE_TREE (1ULL << 1)
void btrfs_list_all_fs_features(u64 mask_disallowed);
void btrfs_list_all_runtime_features(u64 mask_disallowed);
char *btrfs_parse_fs_features(char *namelist, u64 *flags);
char *btrfs_parse_runtime_features(char *namelist, u64 *flags);
void btrfs_process_fs_features(u64 flags);
void btrfs_process_runtime_features(u64 flags);
void btrfs_parse_fs_features_to_string(char *buf, u64 flags);
void btrfs_parse_runtime_features_to_string(char *buf, u64 flags);
void print_kernel_version(FILE *stream, u32 version);
u32 get_running_kernel_version(void);
int btrfs_check_nodesize(u32 nodesize, u32 sectorsize, u64 features);
int btrfs_check_sectorsize(u32 sectorsize);
#endif