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7807e14384
printbufs know how big the buffer is that was allocated, so we can get rid of the random PAGE_SIZEs all over the place. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_CLOCK_H
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#define _BCACHEFS_CLOCK_H
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void bch2_io_timer_add(struct io_clock *, struct io_timer *);
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void bch2_io_timer_del(struct io_clock *, struct io_timer *);
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void bch2_kthread_io_clock_wait(struct io_clock *, unsigned long,
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unsigned long);
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void __bch2_increment_clock(struct io_clock *, unsigned);
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static inline void bch2_increment_clock(struct bch_fs *c, unsigned sectors,
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int rw)
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{
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struct io_clock *clock = &c->io_clock[rw];
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if (unlikely(this_cpu_add_return(*clock->pcpu_buf, sectors) >=
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IO_CLOCK_PCPU_SECTORS))
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__bch2_increment_clock(clock, this_cpu_xchg(*clock->pcpu_buf, 0));
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}
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void bch2_io_clock_schedule_timeout(struct io_clock *, unsigned long);
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#define bch2_kthread_wait_event_ioclock_timeout(condition, clock, timeout)\
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({ \
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long __ret = timeout; \
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might_sleep(); \
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if (!___wait_cond_timeout(condition)) \
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__ret = __wait_event_timeout(wq, condition, timeout); \
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__ret; \
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})
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void bch2_io_timers_to_text(struct printbuf *, struct io_clock *);
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void bch2_io_clock_exit(struct io_clock *);
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int bch2_io_clock_init(struct io_clock *);
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#endif /* _BCACHEFS_CLOCK_H */
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