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 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