diff options
Diffstat (limited to 'drivers/base/cpu.c')
| -rw-r--r-- | drivers/base/cpu.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index f160ea44a86d..ea23ee7b545b 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -265,6 +265,17 @@ static ssize_t print_cpus_offline(struct device *dev, } static DEVICE_ATTR(offline, 0444, print_cpus_offline, NULL); +static ssize_t print_cpus_isolated(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int n = 0, len = PAGE_SIZE-2; + + n = scnprintf(buf, len, "%*pbl\n", cpumask_pr_args(cpu_isolated_map)); + + return n; +} +static DEVICE_ATTR(isolated, 0444, print_cpus_isolated, NULL); + static void cpu_device_release(struct device *dev) { /* @@ -431,6 +442,7 @@ static struct attribute *cpu_root_attrs[] = { &cpu_attrs[2].attr.attr, &dev_attr_kernel_max.attr, &dev_attr_offline.attr, + &dev_attr_isolated.attr, #ifdef CONFIG_GENERIC_CPU_AUTOPROBE &dev_attr_modalias.attr, #endif |