Messages in this thread Patch in this message | | | From | Frederic Weisbecker <> | Subject | [PATCH 6/6] nohz: Remove obsolete check for full dynticks CPUs to be RCU nocbs | Date | Wed, 12 Jun 2013 16:02:38 +0200 |
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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> --- kernel/time/tick-sched.c | 10 ---------- 1 files changed, 0 insertions(+), 10 deletions(-)
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 917b871..91e2ab9 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -356,16 +356,6 @@ 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); } -- 1.7.5.4
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