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25be2e5d4a
Add a new superblock field which represents journal buckets as ranges: also move code for the superblock journal fields to journal_sb.c. This also reworks the code for resizing the journal to write the new superblock before using the new journal buckets, and thus be a bit safer. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
25 lines
639 B
C
25 lines
639 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#include "super-io.h"
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#include "vstructs.h"
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static inline unsigned bch2_nr_journal_buckets(struct bch_sb_field_journal *j)
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{
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return j
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? (__le64 *) vstruct_end(&j->field) - j->buckets
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: 0;
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}
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static inline unsigned bch2_sb_field_journal_v2_nr_entries(struct bch_sb_field_journal_v2 *j)
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{
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if (!j)
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return 0;
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return (struct bch_sb_field_journal_v2_entry *) vstruct_end(&j->field) - &j->d[0];
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}
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extern const struct bch_sb_field_ops bch_sb_field_ops_journal;
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extern const struct bch_sb_field_ops bch_sb_field_ops_journal_v2;
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int bch2_journal_buckets_to_sb(struct bch_fs *, struct bch_dev *);
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