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-rwxr-xr-xtools/nfsd/inject_fault.sh49
1 files changed, 49 insertions, 0 deletions
diff --git a/tools/nfsd/inject_fault.sh b/tools/nfsd/inject_fault.sh
new file mode 100755
index 000000000000..06a399ac8b2f
--- /dev/null
+++ b/tools/nfsd/inject_fault.sh
@@ -0,0 +1,49 @@
+#!/bin/bash
+#
+# Copyright (c) 2011 Bryan Schumaker <bjschuma@netapp.com>
+#
+# Script for easier NFSD fault injection
+
+# Check that debugfs has been mounted
+DEBUGFS=`cat /proc/mounts | grep debugfs`
+if [ "$DEBUGFS" == "" ]; then
+ echo "debugfs does not appear to be mounted!"
+ echo "Please mount debugfs and try again"
+ exit 1
+fi
+
+# Check that the fault injection directory exists
+DEBUGDIR=`echo $DEBUGFS | awk '{print $2}'`/nfsd
+if [ ! -d "$DEBUGDIR" ]; then
+ echo "$DEBUGDIR does not exist"
+ echo "Check that your .config selects CONFIG_NFSD_FAULT_INJECTION"
+ exit 1
+fi
+
+function help()
+{
+ echo "Usage $0 injection_type [count]"
+ echo ""
+ echo "Injection types are:"
+ ls $DEBUGDIR
+ exit 1
+}
+
+if [ $# == 0 ]; then
+ help
+elif [ ! -f $DEBUGDIR/$1 ]; then
+ help
+elif [ $# != 2 ]; then
+ COUNT=0
+else
+ COUNT=$2
+fi
+
+BEFORE=`mktemp`
+AFTER=`mktemp`
+dmesg > $BEFORE
+echo $COUNT > $DEBUGDIR/$1
+dmesg > $AFTER
+# Capture lines that only exist in the $AFTER file
+diff $BEFORE $AFTER | grep ">"
+rm -f $BEFORE $AFTER