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tracing: use %*pb[l] to print 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>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
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 14:37:39 -08:00 • committed by Linus Torvalds
parent dfbcbf42dd
commit 1a40243bae
2 changed files with 4 additions and 4 deletions
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2
kernel/trace/trace_seq.c
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@ -120,7 +120,7 @@ void trace_seq_bitmask(struct trace_seq *s, const unsigned long *maskp,
__trace_seq_init(s);
seq_buf_bitmask(&s->seq, maskp, nmaskbits);
seq_buf_printf(&s->seq, "%*pb", nmaskbits, maskp);
if (unlikely(seq_buf_has_overflowed(&s->seq))) {
s->seq.len = save_len;