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nohz: Remove obsolete check for full dynticks CPUs to be RCU nocbs 

Building full dynticks now implies that all CPUs are forced
into RCU nocb mode through CONFIG_RCU_NOCB_CPU_ALL.

The dynamic check has become useless.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Borislav Petkov <bp@alien8.de>
This commit is contained in:
Frederic Weisbecker 2013-06-08 13:47:31 +02:00
parent 940be35ac0
commit 5b8621a68f
1 changed files with 0 additions and 10 deletions
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10
kernel/time/tick-sched.c
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@ -351,16 +351,6 @@ void __init tick_nohz_init(void)
}
cpu_notifier(tick_nohz_cpu_down_callback, 0);
/* Make sure full dynticks CPU are also RCU nocbs */
for_each_cpu(cpu, nohz_full_mask) {
if (!rcu_is_nocb_cpu(cpu)) {
pr_warning("NO_HZ: CPU %d is not RCU nocb: "
"cleared from nohz_full range", cpu);
cpumask_clear_cpu(cpu, nohz_full_mask);
}
}
cpulist_scnprintf(nohz_full_buf, sizeof(nohz_full_buf), nohz_full_mask);
pr_info("NO_HZ: Full dynticks CPUs: %s.\n", nohz_full_buf);
}