lkml.org 
[lkml]   [2017]   [Sep]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] cpupower : Fix cpupower working when cpu0 is offline
Date
cpuidle_monitor used to assume that cpu0 is always online. Now the
cpuidle_monitor function searches for the first online cpu and use
it, instead of always using cpu0 which maynot be online.

Signed-off-by: Abhishek Goel <huntbag@linux.vnet.ibm.com>
---
tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
index 055a4fa..1cfba02 100644
--- a/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
+++ b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
@@ -132,13 +132,13 @@ static struct cpuidle_monitor *cpuidle_register(void)
char *tmp;
int first_online_cpu;

- for (num = 0; num < cpu_count; num++){
+ for (num = 0; num < cpu_count; num++) {
if (cpupower_is_cpu_online(num))
break;
};
first_online_cpu = num;
-
- /* Assume idle state count is the same for all CPUs */
+
+ /* Assume idle state count is the same for all CPUs */
cpuidle_sysfs_monitor.hw_states_num = cpuidle_state_count(first_online_cpu);

if (cpuidle_sysfs_monitor.hw_states_num <= 0)
--
2.9.3
\
 
 \ /
  Last update: 2017-09-22 10:48    [W:0.142 / U:0.872 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site