git.sesse.net Git - bcachefs-tools-debian/blob - libbcachefs/move.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _BCACHEFS_MOVE_H
   3 #define _BCACHEFS_MOVE_H
   4
   5 #include "btree_iter.h"
   6 #include "buckets.h"
   7 #include "io_types.h"
   8 #include "move_types.h"
   9
  10 struct bch_read_bio;
  11 struct moving_context;
  12
  13 enum data_cmd {
  14         DATA_SKIP,
  15         DATA_SCRUB,
  16         DATA_ADD_REPLICAS,
  17         DATA_REWRITE,
  18         DATA_PROMOTE,
  19 };
  20
  21 struct data_opts {
  22         u16             target;
  23         u8              rewrite_dev;
  24         u8              nr_replicas;
  25         int             btree_insert_flags;
  26 };
  27
  28 struct migrate_write {
  29         enum btree_id           btree_id;
  30         enum data_cmd           data_cmd;
  31         struct data_opts        data_opts;
  32
  33         unsigned                nr_ptrs_reserved;
  34
  35         struct moving_context   *ctxt;
  36
  37         /* what we read: */
  38         struct bch_extent_ptr   ptr;
  39         u64                     offset;
  40
  41         struct bch_write_op     op;
  42 };
  43
  44 void bch2_migrate_read_done(struct migrate_write *, struct bch_read_bio *);
  45 int bch2_migrate_write_init(struct bch_fs *, struct migrate_write *,
  46                             struct write_point_specifier,
  47                             struct bch_io_opts,
  48                             enum data_cmd, struct data_opts,
  49                             enum btree_id, struct bkey_s_c);
  50
  51 typedef enum data_cmd (*move_pred_fn)(struct bch_fs *, void *,
  52                                 struct bkey_s_c,
  53                                 struct bch_io_opts *, struct data_opts *);
  54
  55 int bch2_move_data(struct bch_fs *,
  56                    enum btree_id, struct bpos,
  57                    enum btree_id, struct bpos,
  58                    struct bch_ratelimit *,
  59                    struct write_point_specifier,
  60                    move_pred_fn, void *,
  61                    struct bch_move_stats *);
  62
  63 int bch2_data_job(struct bch_fs *,
  64                   struct bch_move_stats *,
  65                   struct bch_ioctl_data);
  66
  67 #endif /* _BCACHEFS_MOVE_H */