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https://github.com/torvalds/linux
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2640faeb17
- Fix a sleeping-in-atomic bug due to calling bch2_journal_buckets_to_sb() under the journal lock. - Additionally, now we mark buckets as journal buckets before adding them to the journal in memory and the superblock. This ensures that if we crash part way through we'll never be writing to journal buckets that aren't marked correctly. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
25 lines
656 B
C
25 lines
656 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 *, u64 *, unsigned);
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