mirror of
https://github.com/koverstreet/bcachefs-tools.git
synced 2025-12-08 00:00:12 +03:00
127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _BCACHEFS_REBALANCE_H
|
|
#define _BCACHEFS_REBALANCE_H
|
|
|
|
#include "data/compress.h"
|
|
#include "alloc/disk_groups.h"
|
|
#include "rebalance_types.h"
|
|
|
|
static inline struct bch_extent_rebalance io_opts_to_rebalance_opts(struct bch_fs *c,
|
|
struct bch_inode_opts *opts)
|
|
{
|
|
struct bch_extent_rebalance r = {
|
|
.type = BIT(BCH_EXTENT_ENTRY_rebalance),
|
|
#define x(_name) \
|
|
._name = opts->_name, \
|
|
._name##_from_inode = opts->_name##_from_inode,
|
|
BCH_REBALANCE_OPTS()
|
|
#undef x
|
|
};
|
|
|
|
if (r.background_target &&
|
|
!bch2_target_accepts_data(c, BCH_DATA_user, r.background_target))
|
|
r.background_target = 0;
|
|
|
|
return r;
|
|
};
|
|
|
|
void bch2_extent_rebalance_to_text(struct printbuf *, struct bch_fs *,
|
|
const struct bch_extent_rebalance *);
|
|
|
|
int bch2_trigger_extent_rebalance(struct btree_trans *,
|
|
struct bkey_s_c, struct bkey_s_c,
|
|
enum btree_iter_update_trigger_flags);
|
|
|
|
u64 bch2_bkey_sectors_need_rebalance(struct bch_fs *, struct bkey_s_c);
|
|
|
|
enum set_needs_rebalance_ctx {
|
|
SET_NEEDS_REBALANCE_opt_change,
|
|
SET_NEEDS_REBALANCE_opt_change_indirect,
|
|
SET_NEEDS_REBALANCE_foreground,
|
|
SET_NEEDS_REBALANCE_other,
|
|
};
|
|
|
|
int bch2_bkey_set_needs_rebalance(struct bch_fs *, struct bch_inode_opts *,
|
|
struct bkey_i *, enum set_needs_rebalance_ctx, u32);
|
|
|
|
/* Inodes in different snapshots may have different IO options: */
|
|
struct snapshot_io_opts_entry {
|
|
u32 snapshot;
|
|
struct bch_inode_opts io_opts;
|
|
};
|
|
|
|
struct per_snapshot_io_opts {
|
|
u64 cur_inum;
|
|
bool metadata;
|
|
|
|
struct bch_inode_opts fs_io_opts;
|
|
DARRAY(struct snapshot_io_opts_entry) d;
|
|
};
|
|
|
|
static inline struct per_snapshot_io_opts per_snapshot_io_opts_init(struct bch_fs *c)
|
|
{
|
|
return (struct per_snapshot_io_opts) {
|
|
/* io_opts->fs_io_opts will be initialized when we know the key type */
|
|
.fs_io_opts.change_cookie = atomic_read(&c->opt_change_cookie) - 1,
|
|
};
|
|
}
|
|
|
|
static inline void per_snapshot_io_opts_exit(struct per_snapshot_io_opts *io_opts)
|
|
{
|
|
darray_exit(&io_opts->d);
|
|
}
|
|
|
|
DEFINE_CLASS(per_snapshot_io_opts, struct per_snapshot_io_opts,
|
|
per_snapshot_io_opts_exit(&_T),
|
|
per_snapshot_io_opts_init(c),
|
|
struct bch_fs *c);
|
|
|
|
int bch2_update_rebalance_opts(struct btree_trans *,
|
|
struct bch_inode_opts *,
|
|
struct btree_iter *,
|
|
struct bkey_s_c,
|
|
enum set_needs_rebalance_ctx);
|
|
|
|
int bch2_bkey_get_io_opts(struct btree_trans *,
|
|
struct per_snapshot_io_opts *, struct bkey_s_c,
|
|
struct bch_inode_opts *opts);
|
|
|
|
struct rebalance_scan {
|
|
enum rebalance_scan_type {
|
|
REBALANCE_SCAN_fs,
|
|
REBALANCE_SCAN_metadata,
|
|
REBALANCE_SCAN_device,
|
|
REBALANCE_SCAN_inum,
|
|
} type;
|
|
|
|
union {
|
|
unsigned dev;
|
|
u64 inum;
|
|
};
|
|
};
|
|
|
|
int bch2_set_rebalance_needs_scan_trans(struct btree_trans *, struct rebalance_scan);
|
|
int bch2_set_rebalance_needs_scan(struct bch_fs *, struct rebalance_scan);
|
|
int bch2_set_fs_needs_rebalance(struct bch_fs *);
|
|
|
|
static inline void bch2_rebalance_wakeup(struct bch_fs *c)
|
|
{
|
|
c->rebalance.kick++;
|
|
guard(rcu)();
|
|
struct task_struct *p = rcu_dereference(c->rebalance.thread);
|
|
if (p)
|
|
wake_up_process(p);
|
|
}
|
|
|
|
void bch2_rebalance_status_to_text(struct printbuf *, struct bch_fs *);
|
|
|
|
void bch2_rebalance_stop(struct bch_fs *);
|
|
int bch2_rebalance_start(struct bch_fs *);
|
|
|
|
void bch2_fs_rebalance_exit(struct bch_fs *);
|
|
int bch2_fs_rebalance_init(struct bch_fs *);
|
|
|
|
int bch2_check_rebalance_work(struct bch_fs *);
|
|
|
|
#endif /* _BCACHEFS_REBALANCE_H */
|