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3636ed489a
Will be used in the future for inode updates, which will be very helpful for multithreaded workloads that have to update the inode with every extent update (appends, or updates that change i_sectors) Also will be used eventually for fully persistent alloc info However - we still need a mechanism for reserving space in the journal prior to getting a journal reservation, so it's not technically safe to make use of this just yet, we could deadlock with the journal full (although not likely to be an issue in practice) Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_JOURNAL_RECLAIM_H
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#define _BCACHEFS_JOURNAL_RECLAIM_H
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#define JOURNAL_PIN (32 * 1024)
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static inline bool journal_pin_active(struct journal_entry_pin *pin)
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{
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return pin->seq != 0;
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}
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static inline struct journal_entry_pin_list *
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journal_seq_pin(struct journal *j, u64 seq)
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{
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EBUG_ON(seq < j->pin.front || seq >= j->pin.back);
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return &j->pin.data[seq & j->pin.mask];
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}
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void bch2_journal_pin_add(struct journal *, u64, struct journal_entry_pin *,
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journal_pin_flush_fn);
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void bch2_journal_pin_update(struct journal *, u64, struct journal_entry_pin *,
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journal_pin_flush_fn);
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void bch2_journal_pin_drop(struct journal *, struct journal_entry_pin *);
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void bch2_journal_pin_add_if_older(struct journal *,
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struct journal_entry_pin *,
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struct journal_entry_pin *,
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journal_pin_flush_fn);
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void bch2_journal_pin_flush(struct journal *, struct journal_entry_pin *);
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void bch2_journal_reclaim_fast(struct journal *);
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void bch2_journal_reclaim_work(struct work_struct *);
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void bch2_journal_flush_pins(struct journal *, u64);
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static inline void bch2_journal_flush_all_pins(struct journal *j)
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{
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bch2_journal_flush_pins(j, U64_MAX);
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}
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int bch2_journal_flush_device_pins(struct journal *, int);
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#endif /* _BCACHEFS_JOURNAL_RECLAIM_H */
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