1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_JOURNAL_RECLAIM_H
3 #define _BCACHEFS_JOURNAL_RECLAIM_H
5 #define JOURNAL_PIN (32 * 1024)
7 static inline void journal_reclaim_kick(struct journal *j)
9 struct task_struct *p = READ_ONCE(j->reclaim_thread);
11 if (p && !j->reclaim_kicked) {
12 j->reclaim_kicked = true;
18 unsigned bch2_journal_dev_buckets_available(struct journal *,
19 struct journal_device *,
20 enum journal_space_from);
21 void bch2_journal_space_available(struct journal *);
23 static inline bool journal_pin_active(struct journal_entry_pin *pin)
28 static inline struct journal_entry_pin_list *
29 journal_seq_pin(struct journal *j, u64 seq)
31 EBUG_ON(seq < j->pin.front || seq >= j->pin.back);
33 return &j->pin.data[seq & j->pin.mask];
36 void __bch2_journal_pin_put(struct journal *, u64);
37 void bch2_journal_pin_put(struct journal *, u64);
38 void bch2_journal_pin_drop(struct journal *, struct journal_entry_pin *);
40 void bch2_journal_pin_set(struct journal *, u64, struct journal_entry_pin *,
41 journal_pin_flush_fn);
43 static inline void bch2_journal_pin_add(struct journal *j, u64 seq,
44 struct journal_entry_pin *pin,
45 journal_pin_flush_fn flush_fn)
47 if (unlikely(!journal_pin_active(pin) || pin->seq > seq))
48 bch2_journal_pin_set(j, seq, pin, flush_fn);
51 static inline void bch2_journal_pin_copy(struct journal *j,
52 struct journal_entry_pin *dst,
53 struct journal_entry_pin *src,
54 journal_pin_flush_fn flush_fn)
56 /* Guard against racing with journal_pin_drop(src): */
57 u64 seq = READ_ONCE(src->seq);
60 bch2_journal_pin_add(j, seq, dst, flush_fn);
63 static inline void bch2_journal_pin_update(struct journal *j, u64 seq,
64 struct journal_entry_pin *pin,
65 journal_pin_flush_fn flush_fn)
67 if (unlikely(!journal_pin_active(pin) || pin->seq < seq))
68 bch2_journal_pin_set(j, seq, pin, flush_fn);
71 void bch2_journal_pin_flush(struct journal *, struct journal_entry_pin *);
73 void bch2_journal_do_discards(struct journal *);
74 int bch2_journal_reclaim(struct journal *);
76 void bch2_journal_reclaim_stop(struct journal *);
77 int bch2_journal_reclaim_start(struct journal *);
79 bool bch2_journal_flush_pins(struct journal *, u64);
81 static inline bool bch2_journal_flush_all_pins(struct journal *j)
83 return bch2_journal_flush_pins(j, U64_MAX);
86 int bch2_journal_flush_device_pins(struct journal *, int);
88 #endif /* _BCACHEFS_JOURNAL_RECLAIM_H */