mirror of
https://github.com/koverstreet/bcachefs-tools.git
synced 2025-02-03 00:00:07 +03:00
131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
#ifndef _BCACHE_SUPER_H
|
|
#define _BCACHE_SUPER_H
|
|
|
|
#include "extents.h"
|
|
|
|
#include "bcachefs_ioctl.h"
|
|
|
|
static inline size_t sector_to_bucket(const struct bch_dev *ca, sector_t s)
|
|
{
|
|
return s >> ca->bucket_bits;
|
|
}
|
|
|
|
static inline sector_t bucket_to_sector(const struct bch_dev *ca, size_t b)
|
|
{
|
|
return ((sector_t) b) << ca->bucket_bits;
|
|
}
|
|
|
|
static inline sector_t bucket_remainder(const struct bch_dev *ca, sector_t s)
|
|
{
|
|
return s & (ca->mi.bucket_size - 1);
|
|
}
|
|
|
|
static inline struct bch_dev *__bch2_next_dev(struct bch_fs *c, unsigned *iter)
|
|
{
|
|
struct bch_dev *ca = NULL;
|
|
|
|
while (*iter < c->sb.nr_devices &&
|
|
!(ca = rcu_dereference_check(c->devs[*iter],
|
|
lockdep_is_held(&c->state_lock))))
|
|
(*iter)++;
|
|
|
|
return ca;
|
|
}
|
|
|
|
#define __for_each_member_device(ca, c, iter) \
|
|
for ((iter) = 0; ((ca) = __bch2_next_dev((c), &(iter))); (iter)++)
|
|
|
|
#define for_each_member_device_rcu(ca, c, iter) \
|
|
__for_each_member_device(ca, c, iter)
|
|
|
|
static inline struct bch_dev *bch2_get_next_dev(struct bch_fs *c, unsigned *iter)
|
|
{
|
|
struct bch_dev *ca;
|
|
|
|
rcu_read_lock();
|
|
if ((ca = __bch2_next_dev(c, iter)))
|
|
percpu_ref_get(&ca->ref);
|
|
rcu_read_unlock();
|
|
|
|
return ca;
|
|
}
|
|
|
|
/*
|
|
* If you break early, you must drop your ref on the current device
|
|
*/
|
|
#define for_each_member_device(ca, c, iter) \
|
|
for ((iter) = 0; \
|
|
(ca = bch2_get_next_dev(c, &(iter))); \
|
|
percpu_ref_put(&ca->ref), (iter)++)
|
|
|
|
static inline struct bch_dev *bch2_get_next_online_dev(struct bch_fs *c,
|
|
unsigned *iter,
|
|
int state_mask)
|
|
{
|
|
struct bch_dev *ca;
|
|
|
|
rcu_read_lock();
|
|
while ((ca = __bch2_next_dev(c, iter)) &&
|
|
(!((1 << ca->mi.state) & state_mask) ||
|
|
!percpu_ref_tryget(&ca->io_ref)))
|
|
(*iter)++;
|
|
rcu_read_unlock();
|
|
|
|
return ca;
|
|
}
|
|
|
|
#define __for_each_online_member(ca, c, iter, state_mask) \
|
|
for ((iter) = 0; \
|
|
(ca = bch2_get_next_online_dev(c, &(iter), state_mask)); \
|
|
percpu_ref_put(&ca->io_ref), (iter)++)
|
|
|
|
#define for_each_online_member(ca, c, iter) \
|
|
__for_each_online_member(ca, c, iter, ~0)
|
|
|
|
#define for_each_rw_member(ca, c, iter) \
|
|
__for_each_online_member(ca, c, iter, 1 << BCH_MEMBER_STATE_RW)
|
|
|
|
#define for_each_readable_member(ca, c, iter) \
|
|
__for_each_online_member(ca, c, iter, \
|
|
(1 << BCH_MEMBER_STATE_RW)|(1 << BCH_MEMBER_STATE_RO))
|
|
|
|
struct bch_fs *bch2_bdev_to_fs(struct block_device *);
|
|
struct bch_fs *bch2_uuid_to_fs(uuid_le);
|
|
int bch2_congested(struct bch_fs *, int);
|
|
|
|
void bch2_dev_release(struct kobject *);
|
|
|
|
bool bch2_dev_state_allowed(struct bch_fs *, struct bch_dev *,
|
|
enum bch_member_state, int);
|
|
int __bch2_dev_set_state(struct bch_fs *, struct bch_dev *,
|
|
enum bch_member_state, int);
|
|
int bch2_dev_set_state(struct bch_fs *, struct bch_dev *,
|
|
enum bch_member_state, int);
|
|
|
|
int bch2_dev_fail(struct bch_dev *, int);
|
|
int bch2_dev_remove(struct bch_fs *, struct bch_dev *, int);
|
|
int bch2_dev_add(struct bch_fs *, const char *);
|
|
int bch2_dev_online(struct bch_fs *, const char *);
|
|
int bch2_dev_offline(struct bch_fs *, struct bch_dev *, int);
|
|
int bch2_dev_evacuate(struct bch_fs *, struct bch_dev *);
|
|
|
|
bool bch2_fs_emergency_read_only(struct bch_fs *);
|
|
void bch2_fs_read_only(struct bch_fs *);
|
|
const char *bch2_fs_read_write(struct bch_fs *);
|
|
|
|
void bch2_fs_release(struct kobject *);
|
|
void bch2_fs_stop(struct bch_fs *);
|
|
|
|
const char *bch2_fs_start(struct bch_fs *);
|
|
const char *bch2_fs_open(char * const *, unsigned, struct bch_opts,
|
|
struct bch_fs **);
|
|
const char *bch2_fs_open_incremental(const char *path);
|
|
|
|
extern struct kobj_type bch2_fs_ktype;
|
|
extern struct kobj_type bch2_fs_internal_ktype;
|
|
extern struct kobj_type bch2_fs_time_stats_ktype;
|
|
extern struct kobj_type bch2_fs_opts_dir_ktype;
|
|
extern struct kobj_type bch2_dev_ktype;
|
|
|
|
#endif /* _BCACHE_SUPER_H */
|