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v0.8.1
https://github.com/torvalds/linux
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Tip revision: 5816b3e6577eaa676ceb00a848f0fd65fe2adc29 authored by Linus Torvalds on 26 September 2021, 21:08:19 UTC
Linux 5.15-rc3
Tip revision: 5816b3e
event-enable.tc
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: event tracing - enable/disable with event level files
# requires: set_event events/sched
# flags: instance

do_reset() {
    echo > set_event
    clear_trace
}

fail() { #msg
    echo $1
    exit_fail
}

echo 'sched:sched_switch' > set_event

yield

count=`cat trace | grep sched_switch | wc -l`
if [ $count -eq 0 ]; then
    fail "sched_switch events are not recorded"
fi

do_reset

echo 1 > events/sched/sched_switch/enable

yield

count=`cat trace | grep sched_switch | wc -l`
if [ $count -eq 0 ]; then
    fail "sched_switch events are not recorded"
fi

do_reset

echo 0 > events/sched/sched_switch/enable

yield

count=`cat trace | grep sched_switch | wc -l`
if [ $count -ne 0 ]; then
    fail "sched_switch events should not be recorded"
fi

exit 0
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