diff options
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/cpu.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index e3cb47eae982..c6c57b6f61c6 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -300,6 +300,19 @@ static ssize_t print_cpus_isolated(struct device *dev, } static DEVICE_ATTR(isolated, 0444, print_cpus_isolated, NULL); +static ssize_t housekeeping_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + const struct cpumask *hk_mask; + + hk_mask = housekeeping_cpumask(HK_TYPE_KERNEL_NOISE); + + if (housekeeping_enabled(HK_TYPE_KERNEL_NOISE)) + return sysfs_emit(buf, "%*pbl\n", cpumask_pr_args(hk_mask)); + return sysfs_emit(buf, "\n"); +} +static DEVICE_ATTR_RO(housekeeping); + #ifdef CONFIG_NO_HZ_FULL static ssize_t nohz_full_show(struct device *dev, struct device_attribute *attr, @@ -509,6 +522,7 @@ static struct attribute *cpu_root_attrs[] = { &dev_attr_offline.attr, &dev_attr_enabled.attr, &dev_attr_isolated.attr, + &dev_attr_housekeeping.attr, #ifdef CONFIG_NO_HZ_FULL &dev_attr_nohz_full.attr, #endif |