Commit-ID: 5b8621a68fdcd2baf1d3b413726f913a5254d46a
Gitweb: http://git.kernel.org/tip/5b8621a68fdcd2baf1d3b413726f913a5254d46a
Author: Frederic Weisbecker <fweisbec@xxxxxxxxx>
AuthorDate: Sat, 8 Jun 2013 13:47:31 +0200
Committer: Frederic Weisbecker <fweisbec@xxxxxxxxx>
CommitDate: Thu, 20 Jun 2013 15:46:43 +0200
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@xxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Li Zhong <zhong@xxxxxxxxxxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
---
kernel/time/tick-sched.c | 10 ----------
1 file changed, 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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