Commit a18a579e authored Sep 20, 2016 by Peter Zijlstra Committed by Ingo Molnar Sep 22, 2016

sched/debug: Hide printk() by default

Dietmar accidentally added an unconditional sched domain printk. Hide
it behind the normal sched_debug flag.

Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Fixes: cd92bfd3 ("sched/core: Store maximum per-CPU capacity in root domain")
[ Fixed !SCHED_DEBUG build failure. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent 8bf46a39

kernel/sched/core.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -5739,6 +5739,8 @@ static void sched_domain_debug(struct sched_domain *sd, int cpu)
		}
		}
		#else /* !CONFIG_SCHED_DEBUG */

		# define sched_debug_enabled 0
		# define sched_domain_debug(sd, cpu) do { } while (0)
		static inline bool sched_debug(void)
		{
		@@ -7006,7 +7008,7 @@ static int build_sched_domains(const struct cpumask *cpu_map,
		}
		rcu_read_unlock();

		if (rq) {
		if (rq && sched_debug_enabled) {
		pr_info("span: %*pbl (max cpu_capacity = %lu)\n",
		cpumask_pr_args(cpu_map), rq->rd->max_cpu_capacity);
		}