1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_CLOCK_H
3 #define _BCACHEFS_CLOCK_H
4
5 void bch2_io_timer_add(struct io_clock *, struct io_timer *);
6 void bch2_io_timer_del(struct io_clock *, struct io_timer *);
7 void bch2_kthread_io_clock_wait(struct io_clock *, unsigned long,
8 unsigned long);
9
10 void __bch2_increment_clock(struct io_clock *, unsigned);
11
bch2_increment_clock(struct bch_fs * c,unsigned sectors,int rw)12 static inline void bch2_increment_clock(struct bch_fs *c, unsigned sectors,
13 int rw)
14 {
15 struct io_clock *clock = &c->io_clock[rw];
16
17 if (unlikely(this_cpu_add_return(*clock->pcpu_buf, sectors) >=
18 IO_CLOCK_PCPU_SECTORS))
19 __bch2_increment_clock(clock, this_cpu_xchg(*clock->pcpu_buf, 0));
20 }
21
22 void bch2_io_clock_schedule_timeout(struct io_clock *, unsigned long);
23
24 #define bch2_kthread_wait_event_ioclock_timeout(condition, clock, timeout)\
25 ({ \
26 long __ret = timeout; \
27 might_sleep(); \
28 if (!___wait_cond_timeout(condition)) \
29 __ret = __wait_event_timeout(wq, condition, timeout); \
30 __ret; \
31 })
32
33 void bch2_io_timers_to_text(struct printbuf *, struct io_clock *);
34
35 void bch2_io_clock_exit(struct io_clock *);
36 int bch2_io_clock_init(struct io_clock *);
37
38 #endif /* _BCACHEFS_CLOCK_H */
39