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a4805d6672
We dropped support for !BTREE_NODE_NEW_EXTENT_OVERWRITE but it turned out there were people who still had filesystems with btree nodes in that format in the wild. This adds a new compat feature that indicates we've scanned for and rewritten nodes in the old format, and does that scan at mount time if the option isn't set. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
69 lines
1.5 KiB
C
69 lines
1.5 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 "btree_iter.h"
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#include "buckets.h"
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#include "io_types.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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enum data_cmd {
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DATA_SKIP,
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DATA_SCRUB,
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DATA_ADD_REPLICAS,
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DATA_REWRITE,
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DATA_PROMOTE,
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};
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struct data_opts {
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u16 target;
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u8 rewrite_dev;
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u8 nr_replicas;
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int btree_insert_flags;
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};
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struct migrate_write {
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enum btree_id btree_id;
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enum data_cmd data_cmd;
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struct data_opts data_opts;
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unsigned nr_ptrs_reserved;
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struct moving_context *ctxt;
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/* what we read: */
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struct bch_extent_ptr ptr;
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u64 offset;
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struct bch_write_op op;
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};
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void bch2_migrate_read_done(struct migrate_write *, struct bch_read_bio *);
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int bch2_migrate_write_init(struct bch_fs *, struct migrate_write *,
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struct write_point_specifier,
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struct bch_io_opts,
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enum data_cmd, struct data_opts,
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enum btree_id, struct bkey_s_c);
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typedef enum data_cmd (*move_pred_fn)(struct bch_fs *, void *,
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struct bkey_s_c,
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struct bch_io_opts *, struct data_opts *);
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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 write_point_specifier,
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move_pred_fn, void *,
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struct bch_move_stats *);
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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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#endif /* _BCACHEFS_MOVE_H */
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