tools/testing/selftests/rcutorture/configs/rcu/ver_functions.sh

   1 #!/bin/bash
   2 #
   3 # Kernel-version-dependent shell functions for the rest of the scripts.
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, you can access it online at
  17 # http://www.gnu.org/licenses/gpl-2.0.html.
  18 #
  19 # Copyright (C) IBM Corporation, 2013
  20 #
  21 # Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
  22
  23 # rcutorture_param_n_barrier_cbs bootparam-string
  24 #
  25 # Adds n_barrier_cbs rcutorture module parameter to kernels having it.
  26 rcutorture_param_n_barrier_cbs () {
  27         if echo $1 | grep -q "rcutorture\.n_barrier_cbs"
  28         then
  29                 :
  30         else
  31                 echo rcutorture.n_barrier_cbs=4
  32         fi
  33 }
  34
  35 # rcutorture_param_onoff bootparam-string config-file
  36 #
  37 # Adds onoff rcutorture module parameters to kernels having it.
  38 rcutorture_param_onoff () {
  39         if ! bootparam_hotplug_cpu "$1" && configfrag_hotplug_cpu "$2"
  40         then
  41                 echo CPU-hotplug kernel, adding rcutorture onoff. 1>&2
  42                 echo rcutorture.onoff_interval=1000 rcutorture.onoff_holdoff=30
  43         fi
  44 }
  45
  46 # per_version_boot_params bootparam-string config-file seconds
  47 #
  48 # Adds per-version torture-module parameters to kernels supporting them.
  49 per_version_boot_params () {
  50         echo $1 `rcutorture_param_onoff "$1" "$2"` \
  51                 `rcutorture_param_n_barrier_cbs "$1"` \
  52                 rcutorture.stat_interval=15 \
  53                 rcutorture.shutdown_secs=$3 \
  54                 rcutorture.test_no_idle_hz=1 \
  55                 rcutorture.verbose=1
  56 }