[PATCH] tools/rcutorture: Make identify_qemu_vcpus() independant of local language

[Frederic Weisbecker]

The implementation expects `lscpu` to have a "CPU: " line, for example:

	CPU(s):		8

But some local language settings may advocate for their own version:

	Processeur(s) :		8

As a result the function may return an empty string and rcutorture would
dump the following warning (still with the local taste):

	kvm-test-1-run.sh: ligne 138 : test:  : nombre entier attendu comme expression

Just use a command whose output every language agree with.

Signed-off-by: Frederic Weisbecker <frederic@xxxxxxxxxx>
Cc: Paul E. McKenney <paulmck@xxxxxxxxxx>
Cc: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
Cc: Lai Jiangshan <jiangshanlai@xxxxxxxxx>
Cc: rcu@xxxxxxxxxxxxxxx
---
 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 82663495fb38..fef8b4b55c27 100644
--- a/tools/testing/selftests/rcutorture/bin/functions.sh
+++ b/tools/testing/selftests/rcutorture/bin/functions.sh
@@ -232,7 +232,7 @@ identify_qemu_args () {
 # Returns the number of virtual CPUs available to the aggregate of the
 # guest OSes.
 identify_qemu_vcpus () {
-	lscpu | grep '^CPU(s):' | sed -e 's/CPU(s)://' -e 's/[ 	]*//g'
+	getconf _NPROCESSORS_ONLN
 }
 
 # print_bug
-- 
2.25.1