Check if the cpu is online before changing the frequency/governor of
the cpu.
Reported-by: Pavaman Subramaniyam <pavsu...@linux.vnet.ibm.com>
Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com>
Reviewed-by: Gautham R. Shenoy <e...@linux.vnet.ibm.com>
Acked-by: Thomas Renninger <tr...@suse.com>
---
Included Reported-by tag
tools/power/cpupower/utils/cpufreq-set.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tools/power/cpupower/utils/cpufreq-set.c
b/tools/power/cpupower/utils/cpufreq-set.c
index f656e58..4e21357 100644
--- a/tools/power/cpupower/utils/cpufreq-set.c
+++ b/tools/power/cpupower/utils/cpufreq-set.c
@@ -17,6 +17,7 @@
#include "cpufreq.h"
#include "helpers/helpers.h"
+#include "helpers/sysfs.h"
#define NORM_FREQ_LEN 32
@@ -318,6 +319,9 @@ int cmd_freq_set(int argc, char **argv)
cpufreq_cpu_exists(cpu))
continue;
+ if (sysfs_is_cpu_online(cpu) != 1)
+ continue;
+
printf(_("Setting cpu: %d\n"), cpu);
ret = do_one_cpu(cpu, &new_pol, freq, policychange);
if (ret) {
--
1.9.3
--
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