projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 800b927b | 1 | #!/bin/bash |
| b2441318 | 2 | # SPDX-License-Identifier: GPL-2.0 |
| 800b927b BS |
3 | # |
| 4 | # Copyright (c) 2011 Bryan Schumaker <bjschuma@netapp.com> | |
| 5 | # | |
| 6 | # Script for easier NFSD fault injection | |
| 7 | ||
| 8 | # Check that debugfs has been mounted | |
| 9 | DEBUGFS=`cat /proc/mounts | grep debugfs` | |
| 10 | if [ "$DEBUGFS" == "" ]; then | |
| 11 | echo "debugfs does not appear to be mounted!" | |
| 12 | echo "Please mount debugfs and try again" | |
| 13 | exit 1 | |
| 14 | fi | |
| 15 | ||
| 16 | # Check that the fault injection directory exists | |
| 17 | DEBUGDIR=`echo $DEBUGFS | awk '{print $2}'`/nfsd | |
| 18 | if [ ! -d "$DEBUGDIR" ]; then | |
| 19 | echo "$DEBUGDIR does not exist" | |
| 20 | echo "Check that your .config selects CONFIG_NFSD_FAULT_INJECTION" | |
| 21 | exit 1 | |
| 22 | fi | |
| 23 | ||
| 24 | function help() | |
| 25 | { | |
| 26 | echo "Usage $0 injection_type [count]" | |
| 27 | echo "" | |
| 28 | echo "Injection types are:" | |
| 29 | ls $DEBUGDIR | |
| 30 | exit 1 | |
| 31 | } | |
| 32 | ||
| 33 | if [ $# == 0 ]; then | |
| 34 | help | |
| 35 | elif [ ! -f $DEBUGDIR/$1 ]; then | |
| 36 | help | |
| 37 | elif [ $# != 2 ]; then | |
| 38 | COUNT=0 | |
| 39 | else | |
| 40 | COUNT=$2 | |
| 41 | fi | |
| 42 | ||
| 43 | BEFORE=`mktemp` | |
| 44 | AFTER=`mktemp` | |
| 45 | dmesg > $BEFORE | |
| 46 | echo $COUNT > $DEBUGDIR/$1 | |
| 47 | dmesg > $AFTER | |
| 48 | # Capture lines that only exist in the $AFTER file | |
| 49 | diff $BEFORE $AFTER | grep ">" | |
| 50 | rm -f $BEFORE $AFTER |