1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _BCACHEFS_JOURNAL_RECLAIM_H 3 #define _BCACHEFS_JOURNAL_RECLAIM_H 4 5 #define JOURNAL_PIN (32 * 1024) 6 7 static inline void journal_reclaim_kick(struct journal *j) 8 { 9 struct task_struct *p = READ_ONCE(j->reclaim_thread); 10 11 j->reclaim_kicked = true; 12 if (p) 13 wake_up_process(p); 14 } 15 16 unsigned bch2_journal_dev_buckets_available(struct journal *, 17 struct journal_device *, 18 enum journal_space_from); 19 void bch2_journal_set_watermark(struct journal *); 20 void bch2_journal_space_available(struct journal *); 21 22 static inline bool journal_pin_active(struct journal_entry_pin *pin) 23 { 24 return pin->seq != 0; 25 } 26 27 static inline struct journal_entry_pin_list * 28 journal_seq_pin(struct journal *j, u64 seq) 29 { 30 EBUG_ON(seq < j->pin.front || seq >= j->pin.back); 31 32 return &j->pin.data[seq & j->pin.mask]; 33 } 34 35 void bch2_journal_reclaim_fast(struct journal *); 36 bool __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 *); 39 40 void bch2_journal_pin_set(struct journal *, u64, struct journal_entry_pin *, 41 journal_pin_flush_fn); 42 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) 46 { 47 if (unlikely(!journal_pin_active(pin) || pin->seq > seq)) 48 bch2_journal_pin_set(j, seq, pin, flush_fn); 49 } 50 51 void bch2_journal_pin_copy(struct journal *, 52 struct journal_entry_pin *, 53 struct journal_entry_pin *, 54 journal_pin_flush_fn); 55 56 static inline void bch2_journal_pin_update(struct journal *j, u64 seq, 57 struct journal_entry_pin *pin, 58 journal_pin_flush_fn flush_fn) 59 { 60 if (unlikely(!journal_pin_active(pin) || pin->seq < seq)) 61 bch2_journal_pin_set(j, seq, pin, flush_fn); 62 } 63 64 void bch2_journal_pin_flush(struct journal *, struct journal_entry_pin *); 65 66 void bch2_journal_do_discards(struct journal *); 67 int bch2_journal_reclaim(struct journal *); 68 69 void bch2_journal_reclaim_stop(struct journal *); 70 int bch2_journal_reclaim_start(struct journal *); 71 72 bool bch2_journal_flush_pins(struct journal *, u64); 73 74 static inline bool bch2_journal_flush_all_pins(struct journal *j) 75 { 76 return bch2_journal_flush_pins(j, U64_MAX); 77 } 78 79 int bch2_journal_flush_device_pins(struct journal *, int); 80 81 #endif /* _BCACHEFS_JOURNAL_RECLAIM_H */ 82