800b927b38
This script provides a convenient way to use the NFSD fault injection framework. Fault injection writes to dmesg using the KERN_INFO flag, so this script will compare the before and after output of `dmesg` to show the user what happened Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
50 lines
1,001 B
Bash
Executable file
50 lines
1,001 B
Bash
Executable file
#!/bin/bash
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#
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# Copyright (c) 2011 Bryan Schumaker <bjschuma@netapp.com>
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#
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# Script for easier NFSD fault injection
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# Check that debugfs has been mounted
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DEBUGFS=`cat /proc/mounts | grep debugfs`
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if [ "$DEBUGFS" == "" ]; then
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echo "debugfs does not appear to be mounted!"
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echo "Please mount debugfs and try again"
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exit 1
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fi
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# Check that the fault injection directory exists
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DEBUGDIR=`echo $DEBUGFS | awk '{print $2}'`/nfsd
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if [ ! -d "$DEBUGDIR" ]; then
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echo "$DEBUGDIR does not exist"
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echo "Check that your .config selects CONFIG_NFSD_FAULT_INJECTION"
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exit 1
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fi
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function help()
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{
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echo "Usage $0 injection_type [count]"
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echo ""
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echo "Injection types are:"
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ls $DEBUGDIR
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exit 1
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}
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if [ $# == 0 ]; then
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help
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elif [ ! -f $DEBUGDIR/$1 ]; then
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help
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elif [ $# != 2 ]; then
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COUNT=0
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else
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COUNT=$2
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fi
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BEFORE=`mktemp`
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AFTER=`mktemp`
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dmesg > $BEFORE
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echo $COUNT > $DEBUGDIR/$1
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dmesg > $AFTER
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# Capture lines that only exist in the $AFTER file
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diff $BEFORE $AFTER | grep ">"
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rm -f $BEFORE $AFTER
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