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[PATCH] hrtimers: add high resolution timer support

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Implement high resolution timers on top of the hrtimers infrastructure and the
clockevents / tick-management framework.  This provides accurate timers for
all hrtimer subsystem users.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Thomas Gleixner 2007-02-16 01:28:11 -08:00 • committed by Linus Torvalds
parent d40891e75f
commit 54cdfdb47f
8 changed files with 650 additions and 58 deletions
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2
kernel/itimer.c
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@ -136,7 +136,7 @@ enum hrtimer_restart it_real_fn(struct hrtimer *timer)
send_group_sig_info(SIGALRM, SEND_SIG_PRIV, sig->tsk);
if (sig->it_real_incr.tv64 != 0) {
hrtimer_forward(timer, timer->base->softirq_time,
hrtimer_forward(timer, hrtimer_cb_get_time(timer),
sig->it_real_incr);
return HRTIMER_RESTART;
}