From: Venki Pallipadi <[EMAIL PROTECTED]>
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: Venkatesh Pallipadi <[EMAIL PROTECTED]>
Cc: Greg KH <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---
drivers/usb/core/driver.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -puN
drivers/usb/core/driver.c~make-usb-autosuspend-timer-1-sec-jiffy-aligned
drivers/usb/core/driver.c
--- a/drivers/usb/core/driver.c~make-usb-autosuspend-timer-1-sec-jiffy-aligned
+++ a/drivers/usb/core/driver.c
@@ -1010,7 +1010,7 @@ static int autosuspend_check(struct usb_
* 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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