profile: use %*pb[l] to print bitmaps including cpumasks and nodemasks

htejun · torvalds · commit ccbd59c1c104 · 2015-02-13T21:21:38.000-08:00
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 &lt;tj@kernel.org&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
diff --git a/kernel/profile.c b/kernel/profile.c
@@ -422,8 +422,7 @@ void profile_tick(int type)
 
 static int prof_cpu_mask_proc_show(struct seq_file *m, void *v)
 {
-	seq_cpumask(m, prof_cpu_mask);
-	seq_putc(m, '\n');
+	seq_printf(m, "%*pb\n", cpumask_pr_args(prof_cpu_mask));
 	return 0;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -422,8 +422,7 @@ void profile_tick(int type)`
`422`	`422`
`423`	`423`	`static int prof_cpu_mask_proc_show(struct seq_file m, void v)`
`424`	`424`	`{`
`425`		`- seq_cpumask(m, prof_cpu_mask);`
`426`		`- seq_putc(m, '\n');`
	`425`	`+ seq_printf(m, "%*pb\n", cpumask_pr_args(prof_cpu_mask));`
`427`	`426`	`return 0;`
`428`	`427`	`}`
`429`	`428`