提交 8d6d5fd0 编写于 作者: V Venki Pallipadi 提交者: Greg Kroah-Hartman

USB: Make usb-autosuspend timer 1 sec jiffy aligned

Make usb autosuspend timers 1sec jiffy aligned.

This helps to reduce the frequency at which the CPU must be taken out of a
lower-power state.
Signed-off-by: NVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
上级 8e80e753
......@@ -1010,7 +1010,7 @@ static int autosuspend_check(struct usb_device *udev)
* or for the past.
*/
queue_delayed_work(ksuspend_usb_wq, &udev->autosuspend,
suspend_time - jiffies);
round_jiffies_relative(suspend_time - jiffies));
}
return -EAGAIN;
}
......
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