From: "Mark Langsdorf" <mark.langsdorf@amd.com>
Subject: [PATCH][cpufreq] Correctly calculate load
Date: Mon, 3 Dec 2007 10:50:36 -0600
Message-ID: <200712031050.37094.mark.langsdorf@amd.com>
Mime-Version: 1.0
Content-Type: text/plain;
 charset=us-ascii
Content-Transfer-Encoding: 7bit
Return-path: <xen-devel-bounces@lists.xensource.com>
Content-Disposition: inline
List-Unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xensource.com>
List-Help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-Subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
Sender: xen-devel-bounces@lists.xensource.com
Errors-To: xen-devel-bounces@lists.xensource.com
To: xen-devel@lists.xensource.com
List-Id: xen-devel@lists.xenproject.org

The idle time of the system should be less than the wall time
of the system.  The initial implementation incorrectly set
idle time to wall time when idle time was less than wall time,
instead of when idle time was more than wall time.  Correct
this error.

Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>

diff -r fd879c0688bf drivers/cpufreq/cpufreq_ondemand.c
--- a/drivers/cpufreq/cpufreq_ondemand.c	Fri Nov 23 16:26:56 2007 +0000
+++ b/drivers/cpufreq/cpufreq_ondemand.c	Mon Dec 03 10:27:45 2007 -0600
@@ -319,7 +319,7 @@ static int dbs_calc_load(struct cpu_dbs_
 		tmp_idle_msecs = tmp_idle_nsecs;
 		if (tmp_wall_msecs == 0)
 			tmp_wall_msecs = 1;
-		if (tmp_idle_msecs < tmp_wall_msecs)
+		if (tmp_idle_msecs > tmp_wall_msecs)
 			tmp_idle_msecs = tmp_wall_msecs;
 
 		tmp_load = (100 * (tmp_wall_msecs - tmp_idle_msecs)) /