linux/fs/bcachefs/disk_groups.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_DISK_GROUPS_H
#define _BCACHEFS_DISK_GROUPS_H

#include "disk_groups_types.h"

extern const struct bch_sb_field_ops bch_sb_field_ops_disk_groups;

static inline unsigned disk_groups_nr(struct bch_sb_field_disk_groups *groups)
{ … }

struct target { … };

#define TARGET_DEV_START …
#define TARGET_GROUP_START …

static inline u16 dev_to_target(unsigned dev)
{ … }

static inline u16 group_to_target(unsigned group)
{ … }

static inline struct target target_decode(unsigned target)
{ … }

const struct bch_devs_mask *bch2_target_to_mask(struct bch_fs *, unsigned);

static inline struct bch_devs_mask target_rw_devs(struct bch_fs *c,
						  enum bch_data_type data_type,
						  u16 target)
{ … }

static inline bool bch2_target_accepts_data(struct bch_fs *c,
					    enum bch_data_type data_type,
					    u16 target)
{ … }

bool bch2_dev_in_target(struct bch_fs *, unsigned, unsigned);

int bch2_disk_path_find(struct bch_sb_handle *, const char *);

/* Exported for userspace bcachefs-tools: */
int bch2_disk_path_find_or_create(struct bch_sb_handle *, const char *);

void bch2_disk_path_to_text(struct printbuf *, struct bch_fs *, unsigned);
void bch2_disk_path_to_text_sb(struct printbuf *, struct bch_sb *, unsigned);

void bch2_target_to_text(struct printbuf *out, struct bch_fs *, unsigned);

int bch2_opt_target_parse(struct bch_fs *, const char *, u64 *, struct printbuf *);
void bch2_opt_target_to_text(struct printbuf *, struct bch_fs *, struct bch_sb *, u64);

#define bch2_opt_target …

int bch2_sb_disk_groups_to_cpu(struct bch_fs *);

int __bch2_dev_group_set(struct bch_fs *, struct bch_dev *, const char *);
int bch2_dev_group_set(struct bch_fs *, struct bch_dev *, const char *);

const char *bch2_sb_validate_disk_groups(struct bch_sb *,
					 struct bch_sb_field *);

void bch2_disk_groups_to_text(struct printbuf *, struct bch_fs *);

#endif /* _BCACHEFS_DISK_GROUPS_H */