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

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0+
   3 #
   4 # Kernel-version-dependent shell functions for the rest of the scripts.
   5 #
   6 # Copyright (C) IBM Corporation, 2013
   7 #
   8 # Authors: Paul E. McKenney <paulmck@linux.ibm.com>
   9
  10 # rcutorture_param_n_barrier_cbs bootparam-string
  11 #
  12 # Adds n_barrier_cbs rcutorture module parameter to kernels having it.
  13 rcutorture_param_n_barrier_cbs () {
  14         if echo $1 | grep -q "rcutorture\.n_barrier_cbs"
  15         then
  16                 :
  17         else
  18                 echo rcutorture.n_barrier_cbs=4
  19         fi
  20 }
  21
  22 # rcutorture_param_onoff bootparam-string config-file
  23 #
  24 # Adds onoff rcutorture module parameters to kernels having it.
  25 rcutorture_param_onoff () {
  26         if ! bootparam_hotplug_cpu "$1" && configfrag_hotplug_cpu "$2"
  27         then
  28                 echo CPU-hotplug kernel, adding rcutorture onoff. 1>&2
  29                 echo rcutorture.onoff_interval=1000 rcutorture.onoff_holdoff=30
  30         fi
  31 }
  32
  33 # per_version_boot_params bootparam-string config-file seconds
  34 #
  35 # Adds per-version torture-module parameters to kernels supporting them.
  36 per_version_boot_params () {
  37         echo $1 `rcutorture_param_onoff "$1" "$2"` \
  38                 `rcutorture_param_n_barrier_cbs "$1"` \
  39                 rcutorture.stat_interval=15 \
  40                 rcutorture.shutdown_secs=$3 \
  41                 rcutorture.test_no_idle_hz=1 \
  42                 rcutorture.verbose=1
  43 }