mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 00:34:20 +08:00
110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _BCACHEFS_EC_H
|
|
#define _BCACHEFS_EC_H
|
|
|
|
#include "ec_types.h"
|
|
#include "keylist_types.h"
|
|
|
|
const char *bch2_ec_key_invalid(const struct bch_fs *, struct bkey_s_c);
|
|
void bch2_ec_key_to_text(struct printbuf *, struct bch_fs *,
|
|
struct bkey_s_c);
|
|
|
|
#define bch2_bkey_ec_ops (struct bkey_ops) { \
|
|
.key_invalid = bch2_ec_key_invalid, \
|
|
.val_to_text = bch2_ec_key_to_text, \
|
|
}
|
|
|
|
struct bch_read_bio;
|
|
|
|
struct ec_stripe_buf {
|
|
/* might not be buffering the entire stripe: */
|
|
unsigned offset;
|
|
unsigned size;
|
|
unsigned long valid[BITS_TO_LONGS(EC_STRIPE_MAX)];
|
|
|
|
void *data[EC_STRIPE_MAX];
|
|
|
|
union {
|
|
struct bkey_i_stripe key;
|
|
u64 pad[255];
|
|
};
|
|
};
|
|
|
|
struct ec_stripe_head;
|
|
|
|
struct ec_stripe_new {
|
|
struct bch_fs *c;
|
|
struct ec_stripe_head *h;
|
|
struct mutex lock;
|
|
struct list_head list;
|
|
|
|
/* counts in flight writes, stripe is created when pin == 0 */
|
|
atomic_t pin;
|
|
|
|
int err;
|
|
|
|
unsigned long blocks_allocated[BITS_TO_LONGS(EC_STRIPE_MAX)];
|
|
|
|
struct open_buckets blocks;
|
|
struct open_buckets parity;
|
|
|
|
struct keylist keys;
|
|
u64 inline_keys[BKEY_U64s * 8];
|
|
|
|
struct ec_stripe_buf stripe;
|
|
};
|
|
|
|
struct ec_stripe_head {
|
|
struct list_head list;
|
|
struct mutex lock;
|
|
|
|
struct list_head stripes;
|
|
|
|
unsigned target;
|
|
unsigned algo;
|
|
unsigned redundancy;
|
|
|
|
struct bch_devs_mask devs;
|
|
unsigned nr_active_devs;
|
|
|
|
unsigned blocksize;
|
|
|
|
struct dev_stripe_state block_stripe;
|
|
struct dev_stripe_state parity_stripe;
|
|
|
|
struct open_buckets blocks;
|
|
struct open_buckets parity;
|
|
|
|
struct ec_stripe_new *s;
|
|
};
|
|
|
|
int bch2_ec_read_extent(struct bch_fs *, struct bch_read_bio *);
|
|
|
|
void *bch2_writepoint_ec_buf(struct bch_fs *, struct write_point *);
|
|
void bch2_ec_add_backpointer(struct bch_fs *, struct write_point *,
|
|
struct bpos, unsigned);
|
|
|
|
void bch2_ec_bucket_written(struct bch_fs *, struct open_bucket *);
|
|
void bch2_ec_bucket_cancel(struct bch_fs *, struct open_bucket *);
|
|
|
|
int bch2_ec_stripe_new_alloc(struct bch_fs *, struct ec_stripe_head *);
|
|
|
|
void bch2_ec_stripe_head_put(struct ec_stripe_head *);
|
|
struct ec_stripe_head *bch2_ec_stripe_head_get(struct bch_fs *, unsigned,
|
|
unsigned, unsigned);
|
|
|
|
void bch2_stripes_heap_update(struct bch_fs *, struct ec_stripe *, size_t);
|
|
void bch2_stripes_heap_del(struct bch_fs *, struct ec_stripe *, size_t);
|
|
void bch2_stripes_heap_insert(struct bch_fs *, struct ec_stripe *, size_t);
|
|
|
|
void bch2_ec_stop_dev(struct bch_fs *, struct bch_dev *);
|
|
|
|
void bch2_ec_flush_new_stripes(struct bch_fs *);
|
|
|
|
int bch2_fs_ec_start(struct bch_fs *);
|
|
|
|
void bch2_fs_ec_exit(struct bch_fs *);
|
|
int bch2_fs_ec_init(struct bch_fs *);
|
|
|
|
#endif /* _BCACHEFS_EC_H */
|