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workqueue: use %*pb[l] to format bitmaps including cpumasks and nodemasks

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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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Tejun Heo 2015-02-13 14:37:37 -08:00 committed by Linus Torvalds
parent 807de073bb
commit dfbcbf42dd
1 changed files with 2 additions and 3 deletions
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5
kernel/workqueue.c
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@ -3083,10 +3083,9 @@ static ssize_t wq_cpumask_show(struct device *dev,
int written;
mutex_lock(&wq->mutex);
written = cpumask_scnprintf(buf, PAGE_SIZE, wq->unbound_attrs->cpumask);
written = scnprintf(buf, PAGE_SIZE, "%*pb\n",
cpumask_pr_args(wq->unbound_attrs->cpumask));
mutex_unlock(&wq->mutex);
written += scnprintf(buf + written, PAGE_SIZE - written, "\n");
return written;
}