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#ifndef _BCACHEFS_ALLOC_FOREGROUND_H
#define _BCACHEFS_ALLOC_FOREGROUND_H
#include "bcachefs.h"
#include "alloc_types.h"
#include <linux/hash.h>
struct bkey;
struct bch_dev;
struct bch_fs;
struct bch_devs_List;
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 *);
long bch2_bucket_alloc_new_fs(struct bch_dev *);
struct open_bucket *bch2_bucket_alloc(struct bch_fs *, struct bch_dev *,
enum alloc_reserve, bool,
struct closure *);
static inline void ob_push(struct bch_fs *c, struct open_buckets *obs,
struct open_bucket *ob)
{
BUG_ON(obs->nr >= ARRAY_SIZE(obs->v));
obs->v[obs->nr++] = ob - c->open_buckets;
}
#define open_bucket_for_each(_c, _obs, _ob, _i) \
for ((_i) = 0; \
(_i) < (_obs)->nr && \
((_ob) = (_c)->open_buckets + (_obs)->v[_i], true); \
(_i)++)
void __bch2_open_bucket_put(struct bch_fs *, struct open_bucket *);
static inline void bch2_open_bucket_put(struct bch_fs *c, struct open_bucket *ob)
{
if (atomic_dec_and_test(&ob->pin))
__bch2_open_bucket_put(c, ob);
}
static inline void bch2_open_buckets_put(struct bch_fs *c,
struct open_buckets *ptrs)
{
struct open_bucket *ob;
unsigned i;
open_bucket_for_each(c, ptrs, ob, i)
bch2_open_bucket_put(c, ob);
ptrs->nr = 0;
}
static inline void bch2_open_bucket_get(struct bch_fs *c,
struct write_point *wp,
struct open_buckets *ptrs)
{
struct open_bucket *ob;
unsigned i;
open_bucket_for_each(c, &wp->ptrs, ob, i) {
atomic_inc(&ob->pin);
ob_push(c, ptrs, ob);
}
}
struct write_point *bch2_alloc_sectors_start(struct bch_fs *,
unsigned,
struct write_point_specifier,
struct bch_devs_list *,
unsigned, unsigned,
enum alloc_reserve,
unsigned,
struct closure *);
void bch2_alloc_sectors_append_ptrs(struct bch_fs *, struct write_point *,
struct bkey_i_extent *, unsigned);
void bch2_alloc_sectors_done(struct bch_fs *, struct write_point *);
void bch2_writepoint_stop(struct bch_fs *, struct bch_dev *,
struct write_point *);
static inline struct write_point_specifier writepoint_hashed(unsigned long v)
{
return (struct write_point_specifier) { .v = v | 1 };
}
static inline struct write_point_specifier writepoint_ptr(struct write_point *wp)
{
return (struct write_point_specifier) { .v = (unsigned long) wp };
}
static inline void writepoint_init(struct write_point *wp,
enum bch_data_type type)
{
mutex_init(&wp->lock);
wp->type = type;
}
void bch2_fs_allocator_foreground_init(struct bch_fs *);
#endif /* _BCACHEFS_ALLOC_FOREGROUND_H */
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