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

…asks 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 <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
noroot · Feb 14, 2015 · dfbcbf4 · dfbcbf4
1 parent 807de07
commit dfbcbf4
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
@@ -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;
 }