linux-kernel - [PATCH tip/core/rcu 2/4] locktorture: Allow CPU-hotplug to be disabled via --bootargs

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Message-Id: <20200215000337.14667-2-paulmck@kernel.org>
Date:   Fri, 14 Feb 2020 16:03:35 -0800
From:   paulmck@...nel.org
To:     rcu@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com, mingo@...nel.org,
        jiangshanlai@...il.com, dipankar@...ibm.com,
        akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
        josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
        rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
        fweisbec@...il.com, oleg@...hat.com, joel@...lfernandes.org,
        "Paul E. McKenney" <paulmck@...nel.org>
Subject: [PATCH tip/core/rcu 2/4] locktorture: Allow CPU-hotplug to be disabled via --bootargs

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

The bootparam_hotplug_cpu() bash function was checking for CPU-hotplug
kernel-boot parameters from --bootargs, but that check was specific to
rcutorture ("rcutorture\.onoff_").  This commit therefore makes this
check also work for locktorture ("torture\.onoff_").

Note that rcuperf does not do CPU-hotplug operations, so it is not
necessary to make a similar change for rcuperf.

Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
---
 tools/testing/selftests/rcutorture/bin/functions.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/rcutorture/bin/functions.sh b/tools/testing/selftests/rcutorture/bin/functions.sh
index c3a49fb..1281022 100644
--- a/tools/testing/selftests/rcutorture/bin/functions.sh
+++ b/tools/testing/selftests/rcutorture/bin/functions.sh
@@ -12,7 +12,7 @@
 # Returns 1 if the specified boot-parameter string tells rcutorture to
 # test CPU-hotplug operations.
 bootparam_hotplug_cpu () {
-	echo "$1" | grep -q "rcutorture\.onoff_"
+	echo "$1" | grep -q "torture\.onoff_"
 }
 
 # checkarg --argname argtype $# arg mustmatch cannotmatch
-- 
2.9.5