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    hrtimer: turn hrtimers into range timers · 654c8e0b
    Arjan van de Ven 提交于
    this patch turns hrtimers into range timers; they have 2 expire points
    1) the soft expire point
    2) the hard expire point
    
    the kernel will do it's regular best effort attempt to get the timer run
    at the hard expire point. However, if some other time fires after the soft
    expire point, the kernel now has the freedom to fire this timer at this point,
    and thus grouping the events and preventing a power-expensive wakeup in the
    future.
    Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
    654c8e0b
hrtimer.h 13.8 KB