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Subject[PATCH 1/2] nohz: Select wide RCU nocb for full dynticks
Date
It makes testing and implementation much easier as we
know in advance that all CPUs are RCU nocbs.

Also this prepares to remove the dynamic check for
nohz_full= boot mask to be a subset of rcu_nocbs=

Eventually this should also help removing the requirement
for the boot CPU to be outside the full dynticks range.

Suggested-by: Christoph Lameter <cl@linux.com>
Suggested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Gilad Ben Yossef <gilad@benyossef.com>
Cc: Hakan Akkan <hakanakkan@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
---
kernel/time/Kconfig | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig
index f6a792a..e1ac129 100644
--- a/kernel/time/Kconfig
+++ b/kernel/time/Kconfig
@@ -110,6 +110,7 @@ config NO_HZ_FULL
select NO_HZ_COMMON
select RCU_USER_QS
select RCU_NOCB_CPU
+ select RCU_NOCB_CPU_ALL
select CONTEXT_TRACKING_FORCE
select IRQ_WORK
help
--
1.7.5.4


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