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linux/fs/bcachefs/buckets_waiting_for_journal.h
Kent Overstreet 21aec962df bcachefs: New data structure for buckets waiting on journal commit
Implement a hash table, using cuckoo hashing, for empty buckets that are
waiting on a journal commit before they can be reused.

This replaces the journal_seq field of bucket_mark, and is part of
eventually getting rid of the in memory bucket array.

We may need to make bch2_bucket_needs_journal_commit() lockless, pending
profiling and testing.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
2023-10-22 17:09:22 -04:00

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C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BUCKETS_WAITING_FOR_JOURNAL_H
#define _BUCKETS_WAITING_FOR_JOURNAL_H
#include "buckets_waiting_for_journal_types.h"
bool bch2_bucket_needs_journal_commit(struct buckets_waiting_for_journal *,
u64, unsigned, u64);
int bch2_set_bucket_needs_journal_commit(struct buckets_waiting_for_journal *,
u64, unsigned, u64, u64);
void bch2_fs_buckets_waiting_for_journal_exit(struct bch_fs *);
int bch2_fs_buckets_waiting_for_journal_init(struct bch_fs *);
#endif /* _BUCKETS_WAITING_FOR_JOURNAL_H */