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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0+
#
# Extract the number of CPUs expected from the specified Kconfig-file
# fragment by checking CONFIG_SMP and CONFIG_NR_CPUS. If the specified
# file gives no clue, base the number on the number of idle CPUs on
# the system.
#
# Usage: configNR_CPUS.sh config-frag
#
# Copyright (C) IBM Corporation, 2013
#
# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
cf=$1
if test ! -r $cf
then
echo Unreadable config fragment $cf 1>&2
exit -1
fi
if grep -q '^CONFIG_SMP=n$' $cf
then
echo 1
exit 0
fi
if grep -q '^CONFIG_NR_CPUS=' $cf
then
grep '^CONFIG_NR_CPUS=' $cf |
sed -e 's/^CONFIG_NR_CPUS=\([0-9]*\).*$/\1/'
exit 0
fi
cpus2use.sh
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