| #!/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 |
