sched: use %*pb[l] to print bitmaps including cpumasks and nodemasks
printk and friends can now format bitmaps using '%*pb[l]'. cpumask
and nodemask also provide cpumask_pr_args() and nodemask_pr_args()
respectively which can be used to generate the two printf arguments
necessary to format the specified cpu/nodemask.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 1f37fe7..13049aa 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5462,9 +5462,7 @@
struct cpumask *groupmask)
{
struct sched_group *group = sd->groups;
- char str[256];
- cpulist_scnprintf(str, sizeof(str), sched_domain_span(sd));
cpumask_clear(groupmask);
printk(KERN_DEBUG "%*s domain %d: ", level, "", level);
@@ -5477,7 +5475,8 @@
return -1;
}
- printk(KERN_CONT "span %s level %s\n", str, sd->name);
+ printk(KERN_CONT "span %*pbl level %s\n",
+ cpumask_pr_args(sched_domain_span(sd)), sd->name);
if (!cpumask_test_cpu(cpu, sched_domain_span(sd))) {
printk(KERN_ERR "ERROR: domain->span does not contain "
@@ -5522,9 +5521,8 @@
cpumask_or(groupmask, groupmask, sched_group_cpus(group));
- cpulist_scnprintf(str, sizeof(str), sched_group_cpus(group));
-
- printk(KERN_CONT " %s", str);
+ printk(KERN_CONT " %*pbl",
+ cpumask_pr_args(sched_group_cpus(group)));
if (group->sgc->capacity != SCHED_CAPACITY_SCALE) {
printk(KERN_CONT " (cpu_capacity = %d)",
group->sgc->capacity);