97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_MOVE_H
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#define _BCACHEFS_MOVE_H
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#include "bcachefs_ioctl.h"
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#include "btree_iter.h"
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#include "buckets.h"
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#include "data_update.h"
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#include "move_types.h"
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struct bch_read_bio;
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struct moving_context {
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struct bch_fs *c;
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struct list_head list;
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void *fn;
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struct bch_ratelimit *rate;
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struct bch_move_stats *stats;
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struct write_point_specifier wp;
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bool wait_on_copygc;
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bool write_error;
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/* For waiting on outstanding reads and writes: */
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struct closure cl;
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struct mutex lock;
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struct list_head reads;
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struct list_head ios;
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/* in flight sectors: */
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atomic_t read_sectors;
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atomic_t write_sectors;
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atomic_t read_ios;
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atomic_t write_ios;
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wait_queue_head_t wait;
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};
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#define move_ctxt_wait_event(_ctxt, _trans, _cond) \
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do { \
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bool cond_finished = false; \
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bch2_moving_ctxt_do_pending_writes(_ctxt, _trans); \
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\
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if (_cond) \
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break; \
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__wait_event((_ctxt)->wait, \
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bch2_moving_ctxt_next_pending_write(_ctxt) || \
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(cond_finished = (_cond))); \
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if (cond_finished) \
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break; \
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} while (1)
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typedef bool (*move_pred_fn)(struct bch_fs *, void *, struct bkey_s_c,
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struct bch_io_opts *, struct data_update_opts *);
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void bch2_moving_ctxt_exit(struct moving_context *);
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void bch2_moving_ctxt_init(struct moving_context *, struct bch_fs *,
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struct bch_ratelimit *, struct bch_move_stats *,
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struct write_point_specifier, bool);
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struct moving_io *bch2_moving_ctxt_next_pending_write(struct moving_context *);
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void bch2_moving_ctxt_do_pending_writes(struct moving_context *,
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struct btree_trans *);
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int bch2_scan_old_btree_nodes(struct bch_fs *, struct bch_move_stats *);
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int bch2_move_data(struct bch_fs *,
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enum btree_id, struct bpos,
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enum btree_id, struct bpos,
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struct bch_ratelimit *,
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struct bch_move_stats *,
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struct write_point_specifier,
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bool,
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move_pred_fn, void *);
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int __bch2_evacuate_bucket(struct btree_trans *,
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struct moving_context *,
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struct move_bucket_in_flight *,
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struct bpos, int,
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struct data_update_opts);
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int bch2_evacuate_bucket(struct bch_fs *, struct bpos, int,
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struct data_update_opts,
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struct bch_ratelimit *,
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struct bch_move_stats *,
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struct write_point_specifier,
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bool);
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int bch2_data_job(struct bch_fs *,
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struct bch_move_stats *,
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struct bch_ioctl_data);
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void bch2_move_stats_init(struct bch_move_stats *stats, char *name);
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void bch2_fs_moving_ctxts_to_text(struct printbuf *, struct bch_fs *);
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void bch2_fs_move_init(struct bch_fs *);
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#endif /* _BCACHEFS_MOVE_H */
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