#define JOURNAL_PIN (32 * 1024)
-enum journal_space_from {
- journal_space_discarded,
- journal_space_clean_ondisk,
- journal_space_clean,
-};
+static inline void journal_reclaim_kick(struct journal *j)
+{
+ struct task_struct *p = READ_ONCE(j->reclaim_thread);
+
+ j->reclaim_kicked = true;
+ if (p)
+ wake_up_process(p);
+}
unsigned bch2_journal_dev_buckets_available(struct journal *,
struct journal_device *,
enum journal_space_from);
+void bch2_journal_set_watermark(struct journal *);
void bch2_journal_space_available(struct journal *);
static inline bool journal_pin_active(struct journal_entry_pin *pin)
return &j->pin.data[seq & j->pin.mask];
}
+void bch2_journal_reclaim_fast(struct journal *);
+bool __bch2_journal_pin_put(struct journal *, u64);
void bch2_journal_pin_put(struct journal *, u64);
+void bch2_journal_pin_drop(struct journal *, struct journal_entry_pin *);
-void bch2_journal_pin_add(struct journal *, u64, struct journal_entry_pin *,
+void bch2_journal_pin_set(struct journal *, u64, struct journal_entry_pin *,
journal_pin_flush_fn);
-void bch2_journal_pin_update(struct journal *, u64, struct journal_entry_pin *,
- journal_pin_flush_fn);
-void bch2_journal_pin_drop(struct journal *, struct journal_entry_pin *);
-void bch2_journal_pin_add_if_older(struct journal *,
- struct journal_entry_pin *,
- struct journal_entry_pin *,
- journal_pin_flush_fn);
+
+static inline void bch2_journal_pin_add(struct journal *j, u64 seq,
+ struct journal_entry_pin *pin,
+ journal_pin_flush_fn flush_fn)
+{
+ if (unlikely(!journal_pin_active(pin) || pin->seq > seq))
+ bch2_journal_pin_set(j, seq, pin, flush_fn);
+}
+
+void bch2_journal_pin_copy(struct journal *,
+ struct journal_entry_pin *,
+ struct journal_entry_pin *,
+ journal_pin_flush_fn);
+
+static inline void bch2_journal_pin_update(struct journal *j, u64 seq,
+ struct journal_entry_pin *pin,
+ journal_pin_flush_fn flush_fn)
+{
+ if (unlikely(!journal_pin_active(pin) || pin->seq < seq))
+ bch2_journal_pin_set(j, seq, pin, flush_fn);
+}
+
void bch2_journal_pin_flush(struct journal *, struct journal_entry_pin *);
void bch2_journal_do_discards(struct journal *);
-void bch2_journal_reclaim(struct journal *);
-void bch2_journal_reclaim_work(struct work_struct *);
+int bch2_journal_reclaim(struct journal *);
+
+void bch2_journal_reclaim_stop(struct journal *);
+int bch2_journal_reclaim_start(struct journal *);
-void bch2_journal_flush_pins(struct journal *, u64);
+bool bch2_journal_flush_pins(struct journal *, u64);
-static inline void bch2_journal_flush_all_pins(struct journal *j)
+static inline bool bch2_journal_flush_all_pins(struct journal *j)
{
- bch2_journal_flush_pins(j, U64_MAX);
+ return bch2_journal_flush_pins(j, U64_MAX);
}
int bch2_journal_flush_device_pins(struct journal *, int);