bcachefs-tools/libbcachefs/alloc.h

82 lines
2.2 KiB
C

#ifndef _BCACHEFS_ALLOC_H
#define _BCACHEFS_ALLOC_H
#include "bcachefs.h"
#include "alloc_types.h"
struct bkey;
struct bucket;
struct bch_dev;
struct bch_fs;
struct dev_group;
struct dev_alloc_list {
unsigned nr;
u8 devs[BCH_SB_MEMBERS_MAX];
};
struct dev_alloc_list bch2_wp_alloc_list(struct bch_fs *,
struct write_point *,
struct bch_devs_mask *);
void bch2_wp_rescale(struct bch_fs *, struct bch_dev *,
struct write_point *);
int bch2_alloc_read(struct bch_fs *, struct list_head *);
int bch2_alloc_replay_key(struct bch_fs *, struct bpos);
long bch2_bucket_alloc(struct bch_fs *, struct bch_dev *, enum alloc_reserve);
void bch2_open_bucket_put(struct bch_fs *, struct open_bucket *);
struct write_point *bch2_alloc_sectors_start(struct bch_fs *,
enum bch_data_type,
struct bch_devs_mask *,
unsigned long,
unsigned, unsigned,
enum alloc_reserve,
unsigned,
struct closure *);
void bch2_alloc_sectors_append_ptrs(struct bch_fs *, struct bkey_i_extent *,
unsigned, struct open_bucket *, unsigned);
void bch2_alloc_sectors_done(struct bch_fs *, struct write_point *);
struct open_bucket *bch2_alloc_sectors(struct bch_fs *,
enum bch_data_type,
struct bch_devs_mask *,
unsigned long,
struct bkey_i_extent *,
unsigned, unsigned,
enum alloc_reserve,
unsigned,
struct closure *);
static inline void bch2_wake_allocator(struct bch_dev *ca)
{
struct task_struct *p;
rcu_read_lock();
if ((p = ACCESS_ONCE(ca->alloc_thread)))
wake_up_process(p);
rcu_read_unlock();
}
#define open_bucket_for_each_ptr(_ob, _ptr) \
for ((_ptr) = (_ob)->ptrs; \
(_ptr) < (_ob)->ptrs + (_ob)->nr_ptrs; \
(_ptr)++)
void bch2_recalc_capacity(struct bch_fs *);
void bch2_dev_allocator_remove(struct bch_fs *, struct bch_dev *);
void bch2_dev_allocator_add(struct bch_fs *, struct bch_dev *);
void bch2_dev_allocator_stop(struct bch_dev *);
int bch2_dev_allocator_start(struct bch_dev *);
void bch2_fs_allocator_init(struct bch_fs *);
extern const struct bkey_ops bch2_bkey_alloc_ops;
#endif /* _BCACHEFS_ALLOC_H */