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timerfd: introduce a new hrtimer_forward_now() function
I think that advancing the timer against the timer's current "now" can be a pretty common usage, so, w/out exposing hrtimer's internals, we add a new hrtimer_forward_now() function. Signed-off-by: Davide Libenzi <davidel@xmailserver.org> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -304,6 +304,13 @@ static inline int hrtimer_is_queued(struct hrtimer *timer)
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extern unsigned long
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extern unsigned long
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hrtimer_forward(struct hrtimer *timer, ktime_t now, ktime_t interval);
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hrtimer_forward(struct hrtimer *timer, ktime_t now, ktime_t interval);
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/* Forward a hrtimer so it expires after the hrtimer's current now */
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static inline unsigned long hrtimer_forward_now(struct hrtimer *timer,
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ktime_t interval)
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{
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return hrtimer_forward(timer, timer->base->get_time(), interval);
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}
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/* Precise sleep: */
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/* Precise sleep: */
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extern long hrtimer_nanosleep(struct timespec *rqtp,
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extern long hrtimer_nanosleep(struct timespec *rqtp,
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struct timespec *rmtp,
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struct timespec *rmtp,
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