linux-kernel - [PATCH RFC cpumask 5/5] rcutorture: Use "all" and "last" in "nohz_full" and "rcu

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Date:   Tue,  5 Jan 2021 16:49:56 -0800
From:   paulmck@...nel.org
To:     linux-kernel@...r.kernel.org
Cc:     peterz@...radead.org, yury.norov@...il.com, kernel-team@...com,
        "Paul E. McKenney" <paulmck@...nel.org>
Subject: [PATCH RFC cpumask 5/5] rcutorture: Use "all" and "last" in "nohz_full" and "rcu_nocbs"

From: "Paul E. McKenney" <paulmck@...nel.org>

This commit uses the shiny new "all" and "last" cpumask options to
decouple the "nohz_full" and "rcu_nocbs" kernel boot parameters in the
TREE04.boot and TREE08.boot files from the CONFIG_NR_CPUS options in
the TREE04 and TREE08 files.

Reported-by: Paul Gortmaker <paul.gortmaker@...driver.com>
Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
---
 tools/testing/selftests/rcutorture/configs/rcu/TREE04.boot | 2 +-
 tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE04.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE04.boot
index 5adc675..25a765d 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE04.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE04.boot
@@ -1 +1 @@
-rcutree.rcu_fanout_leaf=4 nohz_full=1-7
+rcutree.rcu_fanout_leaf=4 nohz_full=1-last
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot
index 22478fd..94d3844 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot
@@ -1,3 +1,3 @@
 rcupdate.rcu_self_test=1
 rcutree.rcu_fanout_exact=1
-rcu_nocbs=0-7
+rcu_nocbs=all
-- 
2.9.5