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USB: Make usb-autosuspend timer 1 sec jiffy aligned
author
Venki Pallipadi
<venkatesh.pallipadi@intel.com>
Mon, 9 Jul 2007 19:03:06 +0000
(12:03 -0700)
committer
Greg Kroah-Hartman
<gregkh@suse.de>
Thu, 12 Jul 2007 23:34:40 +0000
(16:34 -0700)
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 <venkatesh.pallipadi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/core/driver.c
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diff --git
a/drivers/usb/core/driver.c
b/drivers/usb/core/driver.c
index a3aed8d87ddc8dfc66168588b1e3f719ba965b24..73c49362cd47c7d593e815d7bd3f9f194d899ff3 100644
(file)
--- a/
drivers/usb/core/driver.c
+++ b/
drivers/usb/core/driver.c
@@
-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;
}