a2f2577d96
The purpose of torture_runnable is to allow rcutorture and locktorture to be started and stopped via sysfs when they are built into the kernel (as in not compiled as loadable modules). However, the 0444 permissions for both instances of torture_runnable prevent this use case from ever being put into practice. Given that there have been no complaints about this deficiency, it is reasonable to conclude that no one actually makes use of this sysfs capability. The perf_runnable module parameter for rcuperf is in the same situation. This commit therefore removes both torture_runnable instances as well as perf_runnable. Reported-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
57 lines
1.8 KiB
Bash
57 lines
1.8 KiB
Bash
#!/bin/bash
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#
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# Kernel-version-dependent shell functions for the rest of the scripts.
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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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# rcutorture_param_n_barrier_cbs bootparam-string
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#
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# Adds n_barrier_cbs rcutorture module parameter to kernels having it.
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rcutorture_param_n_barrier_cbs () {
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if echo $1 | grep -q "rcutorture\.n_barrier_cbs"
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then
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:
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else
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echo rcutorture.n_barrier_cbs=4
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fi
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}
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# rcutorture_param_onoff bootparam-string config-file
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#
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# Adds onoff rcutorture module parameters to kernels having it.
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rcutorture_param_onoff () {
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if ! bootparam_hotplug_cpu "$1" && configfrag_hotplug_cpu "$2"
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then
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echo CPU-hotplug kernel, adding rcutorture onoff. 1>&2
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echo rcutorture.onoff_interval=3 rcutorture.onoff_holdoff=30
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fi
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}
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# per_version_boot_params bootparam-string config-file seconds
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#
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# Adds per-version torture-module parameters to kernels supporting them.
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per_version_boot_params () {
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echo $1 `rcutorture_param_onoff "$1" "$2"` \
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`rcutorture_param_n_barrier_cbs "$1"` \
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rcutorture.stat_interval=15 \
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rcutorture.shutdown_secs=$3 \
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rcutorture.test_no_idle_hz=1 \
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rcutorture.verbose=1
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}
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