korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-18 16:44:27 +08:00
Code Issues Packages Projects Releases Wiki Activity
c39de95128
linux/fs/bcachefs/super-io.h

95 lines
2.8 KiB
C
Raw Normal View History

bcachefs: Initial commit Initially forked from drivers/md/bcache, bcachefs is a new copy-on-write filesystem with every feature you could possibly want. Website: https://bcachefs.org Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2017-03-17 14:18:50 +08:00
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_SUPER_IO_H
#define _BCACHEFS_SUPER_IO_H
#include "extents.h"
#include "eytzinger.h"
#include "super_types.h"
#include "super.h"
bcachefs: Add new helper to retrieve bch_member from sb Prep work for introducing bch_sb_field_members_v2 - introduce new helpers that will check for members_v2 if it exists, otherwise using v1 Signed-off-by: Hunter Shaffer <huntershaffer182456@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-09-25 11:55:37 +08:00
#include "sb-members.h"
bcachefs: Initial commit Initially forked from drivers/md/bcache, bcachefs is a new copy-on-write filesystem with every feature you could possibly want. Website: https://bcachefs.org Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2017-03-17 14:18:50 +08:00
#include <asm/byteorder.h>
bcachefs: bch2_version_compatible() This adds a new helper for checking if an on-disk version is compatible with the running version of bcachefs - prep work for introducing major:minor version numbers. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-06-29 08:27:07 +08:00
static inline bool bch2_version_compatible(u16 version)
{
bcachefs: bcachefs_metadata_version_major_minor This introduces major/minor versioning to the superblock version number. Major version number changes indicate incompatible releases; we can move forward to a new major version number, but not backwards. Minor version numbers indicate compatible changes - these add features, but can still be mounted and used by old versions. With the recent patches that make it possible to roll out new btrees and key types without breaking compatibility, we should be able to roll out most new features without incompatible changes. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-06-28 10:09:35 +08:00
return BCH_VERSION_MAJOR(version) <= BCH_VERSION_MAJOR(bcachefs_metadata_version_current) &&
bcachefs: bch2_version_compatible() This adds a new helper for checking if an on-disk version is compatible with the running version of bcachefs - prep work for introducing major:minor version numbers. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-06-29 08:27:07 +08:00
version >= bcachefs_metadata_version_min;
}
bcachefs: bch2_version_to_text() Add a new helper for printing out metadata versions in a standard format. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-06-29 07:53:05 +08:00
void bch2_version_to_text(struct printbuf *, unsigned);
bcachefs: bcachefs_metadata_version_major_minor This introduces major/minor versioning to the superblock version number. Major version number changes indicate incompatible releases; we can move forward to a new major version number, but not backwards. Minor version numbers indicate compatible changes - these add features, but can still be mounted and used by old versions. With the recent patches that make it possible to roll out new btrees and key types without breaking compatibility, we should be able to roll out most new features without incompatible changes. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-06-28 10:09:35 +08:00
unsigned bch2_latest_compatible_version(unsigned);
bcachefs: bch2_version_to_text() Add a new helper for printing out metadata versions in a standard format. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-06-29 07:53:05 +08:00
bcachefs: Version table now lists required recovery passes Now that we've got forward compatibility sorted out, we should be doing more frequent version upgrades in the future. To avoid having to run a full fsck for every version upgrade, this improves the BCH_METADATA_VERSIONS() table to explicitly specify a bitmask of recovery passes to run when upgrading to or past a given version. This means we can also delete PASS_UPGRADE(). Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-07-11 01:42:26 +08:00
u64 bch2_upgrade_recovery_passes(struct bch_fs *c,
unsigned,
unsigned);
bcachefs: bch_sb_field_errors Add a new superblock section to keep counts of errors seen since filesystem creation: we'll be addingcounters for every distinct fsck error. The new superblock section has entries of the for [ id, count, time_of_last_error ]; this is intended to let us see what errors are occuring - and getting fixed - via show-super output. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-26 03:51:16 +08:00
static inline size_t bch2_sb_field_bytes(struct bch_sb_field *f)
{
return le32_to_cpu(f->u64s) * sizeof(u64);
}
bcachefs: Initial commit Initially forked from drivers/md/bcache, bcachefs is a new copy-on-write filesystem with every feature you could possibly want. Website: https://bcachefs.org Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2017-03-17 14:18:50 +08:00
#define field_to_type(_f, _name) \
container_of_or_null(_f, struct bch_sb_field_##_name, field)
bcachefs: bch2_sb_field_get() refactoring Instead of using token pasting to generate methods for each superblock section, just make the type a parameter to bch2_sb_field_get(). Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-09-27 05:49:34 +08:00
struct bch_sb_field *bch2_sb_field_get_id(struct bch_sb *, enum bch_sb_field_type);
#define bch2_sb_field_get(_sb, _name) \
field_to_type(bch2_sb_field_get_id(_sb, BCH_SB_FIELD_##_name), _name)
bcachefs: Initial commit Initially forked from drivers/md/bcache, bcachefs is a new copy-on-write filesystem with every feature you could possibly want. Website: https://bcachefs.org Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2017-03-17 14:18:50 +08:00
bcachefs: bch2_sb_field_get() refactoring Instead of using token pasting to generate methods for each superblock section, just make the type a parameter to bch2_sb_field_get(). Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-09-27 05:49:34 +08:00
struct bch_sb_field *bch2_sb_field_resize_id(struct bch_sb_handle *,
enum bch_sb_field_type, unsigned);
#define bch2_sb_field_resize(_sb, _name, _u64s) \
field_to_type(bch2_sb_field_resize_id(_sb, BCH_SB_FIELD_##_name, _u64s), _name)
void bch2_sb_field_delete(struct bch_sb_handle *, enum bch_sb_field_type);
bcachefs: Initial commit Initially forked from drivers/md/bcache, bcachefs is a new copy-on-write filesystem with every feature you could possibly want. Website: https://bcachefs.org Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2017-03-17 14:18:50 +08:00
extern const char * const bch2_sb_fields[];
struct bch_sb_field_ops {
bcachefs: Improved superblock-related error messages This patch converts bch2_sb_validate() and the .validate methods for the various superblock sections to take printbuf, to which they can print detailed error messages, including printing the entire section that was invalid. This is a great improvement over the previous situation, where we could only return static strings that didn't have precise information about what was wrong. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
2022-01-04 12:38:50 +08:00
int (*validate)(struct bch_sb *, struct bch_sb_field *, struct printbuf *);
void (*to_text)(struct printbuf *, struct bch_sb *, struct bch_sb_field *);
bcachefs: Initial commit Initially forked from drivers/md/bcache, bcachefs is a new copy-on-write filesystem with every feature you could possibly want. Website: https://bcachefs.org Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2017-03-17 14:18:50 +08:00
};
static inline __le64 bch2_sb_magic(struct bch_fs *c)
{
__le64 ret;
bcachefs: Fix assorted checkpatch nits Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-08-08 00:04:05 +08:00
bcachefs: Initial commit Initially forked from drivers/md/bcache, bcachefs is a new copy-on-write filesystem with every feature you could possibly want. Website: https://bcachefs.org Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2017-03-17 14:18:50 +08:00
memcpy(&ret, &c->sb.uuid, sizeof(ret));
return ret;
}
static inline __u64 jset_magic(struct bch_fs *c)
{
return __le64_to_cpu(bch2_sb_magic(c) ^ JSET_MAGIC);
}
static inline __u64 bset_magic(struct bch_fs *c)
{
return __le64_to_cpu(bch2_sb_magic(c) ^ BSET_MAGIC);
}
int bch2_sb_to_fs(struct bch_fs *, struct bch_sb *);
int bch2_sb_from_fs(struct bch_fs *, struct bch_dev *);
void bch2_free_super(struct bch_sb_handle *);
int bch2_sb_realloc(struct bch_sb_handle *, unsigned);
int bch2_read_super(const char *, struct bch_opts *, struct bch_sb_handle *);
bcachefs: Verify fs hasn't been modified before going rw Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2019-03-22 11:13:46 +08:00
int bch2_write_super(struct bch_fs *);
bcachefs: bch2_check_set_feature() New helper function for setting incompatible feature bits Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2019-11-30 02:47:42 +08:00
void __bch2_check_set_feature(struct bch_fs *, unsigned);
static inline void bch2_check_set_feature(struct bch_fs *c, unsigned feat)
{
if (!(c->sb.features & (1ULL << feat)))
__bch2_check_set_feature(c, feat);
}
bcachefs: Initial commit Initially forked from drivers/md/bcache, bcachefs is a new copy-on-write filesystem with every feature you could possibly want. Website: https://bcachefs.org Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2017-03-17 14:18:50 +08:00
bcachefs: bch2_sb_maybe_downgrade(), bch2_sb_upgrade() Add some new helpers, and fix upgrade/downgrade in bch2_fs_initialize(). Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-07-11 00:23:01 +08:00
void bch2_sb_maybe_downgrade(struct bch_fs *);
void bch2_sb_upgrade(struct bch_fs *, unsigned);
bcachefs: revamp to_text methods Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2018-11-09 14:24:07 +08:00
void bch2_sb_field_to_text(struct printbuf *, struct bch_sb *,
struct bch_sb_field *);
bcachefs: Add .to_text() methods for all superblock sections This patch improves the superblock .to_text() methods and adds methods for all types that were missing them. It also improves printbufs by allowing them to specfiy what units we want to be printing in, and adds new wrapper methods for unifying our kernel and userspace environments. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
2022-02-20 18:00:45 +08:00
void bch2_sb_layout_to_text(struct printbuf *, struct bch_sb_layout *);
void bch2_sb_to_text(struct printbuf *, struct bch_sb *, bool, unsigned);
bcachefs: Initial commit Initially forked from drivers/md/bcache, bcachefs is a new copy-on-write filesystem with every feature you could possibly want. Website: https://bcachefs.org Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2017-03-17 14:18:50 +08:00
#endif /* _BCACHEFS_SUPER_IO_H */
Reference in New Issue Copy Permalink