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linux-cpupower-4.15-rc2

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This update consists of fixes to tool's handling of offline cpus.
 The first patch fixes the tool to find information on the cpu it
 is running on, instead of always looking for cpu0 and failing if
 cpu0 happens to be offline.
 
 The second patch fixes the incorrect check for offline cpu status.
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Merge tag 'linux-cpupower-4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux

Pull cpupower utility fixes for 4.15-rc2 from Shuah Khan:

"This update consists of fixes to tool's handling of offline cpus.

The first patch fixes the tool to find information on the cpu it
is running on, instead of always looking for cpu0 and failing if
cpu0 happens to be offline.

The second patch fixes the incorrect check for offline cpu status."

* tag 'linux-cpupower-4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux:
  cpupower : Fix cpupower working when cpu0 is offline
  cpupowerutils: bench - Fix cpu online check
This commit is contained in:
Rafael J. Wysocki 2017-11-18 15:05:31 +01:00
commit 43d2d3b56d
2 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/power/cpupower/bench/system.c
View File

@ -61,7 +61,7 @@ int set_cpufreq_governor(char *governor, unsigned int cpu)
dprintf("set %s as cpufreq governor\n", governor);
if (cpupower_is_cpu_online(cpu) != 0) {
if (cpupower_is_cpu_online(cpu) != 1) {
perror("cpufreq_cpu_exists");
fprintf(stderr, "error: cpu %u does not exist\n", cpu);
return -1;

9
tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
View File

@ -130,15 +130,18 @@ static struct cpuidle_monitor *cpuidle_register(void)
{
int num;
char *tmp;
int this_cpu;
this_cpu = sched_getcpu();
/* Assume idle state count is the same for all CPUs */
cpuidle_sysfs_monitor.hw_states_num = cpuidle_state_count(0);
cpuidle_sysfs_monitor.hw_states_num = cpuidle_state_count(this_cpu);
if (cpuidle_sysfs_monitor.hw_states_num <= 0)
return NULL;
for (num = 0; num < cpuidle_sysfs_monitor.hw_states_num; num++) {
tmp = cpuidle_state_name(0, num);
tmp = cpuidle_state_name(this_cpu, num);
if (tmp == NULL)
continue;
@ -146,7 +149,7 @@ static struct cpuidle_monitor *cpuidle_register(void)
strncpy(cpuidle_cstates[num].name, tmp, CSTATE_NAME_LEN - 1);
free(tmp);
tmp = cpuidle_state_desc(0, num);
tmp = cpuidle_state_desc(this_cpu, num);
if (tmp == NULL)
continue;
strncpy(cpuidle_cstates[num].desc, tmp, CSTATE_DESC_LEN - 1);