46 lines
1.3 KiB
Bash
46 lines
1.3 KiB
Bash
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#!/bin/bash
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#
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# Extract the number of CPUs expected from the specified Kconfig-file
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# fragment by checking CONFIG_SMP and CONFIG_NR_CPUS. If the specified
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# file gives no clue, base the number on the number of idle CPUs on
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# the system.
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#
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# Usage: configNR_CPUS.sh config-frag
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, you can access it online at
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# http://www.gnu.org/licenses/gpl-2.0.html.
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#
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# Copyright (C) IBM Corporation, 2013
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#
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# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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cf=$1
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if test ! -r $cf
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then
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echo Unreadable config fragment $cf 1>&2
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exit -1
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fi
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if grep -q '^CONFIG_SMP=n$' $cf
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then
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echo 1
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exit 0
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fi
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if grep -q '^CONFIG_NR_CPUS=' $cf
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then
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grep '^CONFIG_NR_CPUS=' $cf |
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sed -e 's/^CONFIG_NR_CPUS=\([0-9]*\).*$/\1/'
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exit 0
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fi
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cpus2use.sh
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