test 030 clone using xfs_prepair64

Merge of master-melb:xfs-cmds:27780a by kenmcd.

  test 030 clone using xfs_prepair64

148

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+#! /bin/sh
+# FS QA Test No. 148
+#
+# Exercise xfs parallel repair on broken filesystems
+# This is a clone of test 030 useing xfs_prepair64 instead of xfs_repair
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+#-----------------------------------------------------------------------
+#
+# creator
+owner=ddiss@sgi.com
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1	# failure is the default!
+
+_cleanup()
+{
+	cd /
+	umount $SCRATCH_DEV 2>/dev/null
+	rm -f $tmp.*
+}
+
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+. ./common.repair
+
+[ -x $XFS_PARALLEL_REPAIR64_PROG ] || _notrun "parallel repair binary xfs_prepair64 is not installed"
+
+# force use of parallel repair
+export XFS_REPAIR_PROG=$XFS_PARALLEL_REPAIR64_PROG
+
+# link correct .out file
+_link_out_file $seq.out
+
+# nuke the superblock, AGI, AGF, AGFL; then try repair the damage
+# 
+_check_ag()
+{
+	for structure in 'sb 0' 'agf 0' 'agi 0' 'agfl 0'
+	do
+		echo "Corrupting $structure - setting bits to $1"
+		_check_repair $1 "$structure"
+	done
+}
+
+# real QA test starts here
+_supported_fs xfs
+_supported_os IRIX Linux
+
+_require_nobigloopfs
+_require_scratch
+
+DSIZE="-dsize=100m"
+
+# first we need to ensure there are no bogus secondary
+# superblocks between the primary and first secondary
+# superblock (hanging around from earlier tests)...
+#
+
+_scratch_mkfs_xfs $DSIZE >/dev/null 2>&1
+if [ $? -ne 0 ]		# probably don't have a big enough scratch
+then
+	_notrun "SCRATCH_DEV too small, results would be non-deterministic"
+else
+	_scratch_mount
+	src/feature -U $SCRATCH_DEV && \
+		_notrun "UQuota are enabled, test needs controlled sb recovery"
+	src/feature -G $SCRATCH_DEV && \
+		_notrun "GQuota are enabled, test needs controlled sb recovery"
+	src/feature -P $SCRATCH_DEV && \
+		_notrun "PQuota are enabled, test needs controlled sb recovery"
+	umount $SCRATCH_DEV
+fi
+clear=""
+eval `xfs_db -r -c "sb 1" -c stack $SCRATCH_DEV | perl -ne '
+	if (/byte offset (\d+), length (\d+)/) {
+		print "clear=", $1 / 512, "\n"; exit
+	}'`
+[ -z "$clear" ] && echo "Cannot calculate length to clear"
+src/devzero -v -1 -n "$clear" $SCRATCH_DEV >/dev/null
+
+# now kick off the real prepair test...
+#
+_scratch_mkfs_xfs $DSIZE | _filter_mkfs 2>$tmp.mkfs
+. $tmp.mkfs
+_check_ag 0
+_check_ag -1
+
+
+# success, all done
+status=0
+exit