| #!/bin/bash |
| # |
| # 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 |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, you can access it online at |
| # http://www.gnu.org/licenses/gpl-2.0.html. |
| # |
| # Copyright (C) IBM Corporation, 2013 |
| # |
| # Authors: Paul E. McKenney <paulmck@linux.vnet.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 |
