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Commit ffda22c1 authored by Tejun Heo's avatar Tejun Heo Committed by Linus Torvalds
Browse files

time: 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: default avatarTejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 333470ee

kernel/time/tick-sched.c

+2 −9
Original line number Diff line number Diff line
@@ -326,13 +326,6 @@ static int tick_nohz_cpu_down_callback(struct notifier_block *nfb, 
	return NOTIFY_OK;

}



/*

 * Worst case string length in chunks of CPU range seems 2 steps

 * separations: 0,2,4,6,...

 * This is NR_CPUS + sizeof('\0')

 */

static char __initdata nohz_full_buf[NR_CPUS + 1];



static int tick_nohz_init_all(void)

{

	int err = -1;
@@ -393,8 +386,8 @@ void __init tick_nohz_init(void) 
		context_tracking_cpu_set(cpu);



	cpu_notifier(tick_nohz_cpu_down_callback, 0);

	cpulist_scnprintf(nohz_full_buf, sizeof(nohz_full_buf), tick_nohz_full_mask);

	pr_info("NO_HZ: Full dynticks CPUs: %s.\n", nohz_full_buf);

	pr_info("NO_HZ: Full dynticks CPUs: %*pbl.\n",

		cpumask_pr_args(tick_nohz_full_mask));

}

#endif