diff options
author | Ingo Molnar <mingo@kernel.org> | 2017-11-29 07:11:24 +0100 |
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committer | Ingo Molnar <mingo@kernel.org> | 2017-11-29 07:11:24 +0100 |
commit | 4fc31ba13d052c2933bf91095c063cf9a39effd0 (patch) | |
tree | beabb73c2fe245e6541126732895da62e55bc8ee /drivers/base/cpu.c | |
parent | 0e18dd12064e07519f7cbff4149ca7fff620cbed (diff) | |
parent | b29c6ef7bb1257853c1e31616d84f55e561cf631 (diff) |
Merge branch 'linus' into perf/urgent, to pick up dependent commits
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/base/cpu.c')
-rw-r--r-- | drivers/base/cpu.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 321cd7b4d817..a73ab95558f5 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -18,6 +18,7 @@ #include <linux/cpufeature.h> #include <linux/tick.h> #include <linux/pm_qos.h> +#include <linux/sched/isolation.h> #include "base.h" @@ -271,8 +272,16 @@ static ssize_t print_cpus_isolated(struct device *dev, struct device_attribute *attr, char *buf) { int n = 0, len = PAGE_SIZE-2; + cpumask_var_t isolated; - n = scnprintf(buf, len, "%*pbl\n", cpumask_pr_args(cpu_isolated_map)); + if (!alloc_cpumask_var(&isolated, GFP_KERNEL)) + return -ENOMEM; + + cpumask_andnot(isolated, cpu_possible_mask, + housekeeping_cpumask(HK_FLAG_DOMAIN)); + n = scnprintf(buf, len, "%*pbl\n", cpumask_pr_args(isolated)); + + free_cpumask_var(isolated); return n; } |