1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0+ 3# 4# Extract the number of CPUs expected from the specified Kconfig-file 5# fragment by checking CONFIG_SMP and CONFIG_NR_CPUS. If the specified 6# file gives no clue, base the number on the number of idle CPUs on 7# the system. 8# 9# Usage: configNR_CPUS.sh config-frag 10# 11# Copyright (C) IBM Corporation, 2013 12# 13# Authors: Paul E. McKenney <paulmck@linux.ibm.com> 14 15cf=$1 16if test ! -r $cf 17then 18 echo Unreadable config fragment $cf 1>&2 19 exit -1 20fi 21if grep -q '^CONFIG_SMP=n$' $cf 22then 23 echo 1 24 exit 0 25fi 26if grep -q '^CONFIG_NR_CPUS=' $cf 27then 28 grep '^CONFIG_NR_CPUS=' $cf | 29 sed -e 's/^CONFIG_NR_CPUS=\([0-9]*\).*$/\1/' 30 exit 0 31fi 32cpus2use.sh 33