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authorFrederic Weisbecker <fweisbec@gmail.com>2013-06-08 13:47:31 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2013-06-20 15:46:43 +0200
commit5b8621a68fdcd2baf1d3b413726f913a5254d46a (patch)
tree936ee10cd6fc62f6e7a31fc5d2d2e8ed657bd371 /kernel
parent940be35ac0139530d7554aa2352a8388e3d4adca (diff)
downloadop-kernel-dev-5b8621a68fdcd2baf1d3b413726f913a5254d46a.zip
op-kernel-dev-5b8621a68fdcd2baf1d3b413726f913a5254d46a.tar.gz
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>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/time/tick-sched.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index d87d22c..b157501 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -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);
}
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