script revision 12f48b0caa366e7a02ac8ad57af4ecf0b8bb3778 
1FSCK_OPT=-yf
2
3TMPFILE=$test_name.tmp
4> $TMPFILE
5
6stat -f $TMPFILE | grep -q "Type: tmpfs"
7if [ $? = 0 ]; then
8	rm -f $TMPFILE
9	echo "$test_name: $test_description: skipped for tmpfs (no O_DIRECT)"
10	return 0
11fi
12
13echo "make the test image ..." > $test_name.log
14$MKE2FS -q -F -o Linux -b 4096 -O mmp -E mmp_update_interval=1 $TMPFILE 100 >> $test_name.log 2>&1
15status=$?
16if [ "$status" != 0 ] ; then
17	echo "mke2fs -O mmp failed" > $test_name.failed
18	echo "$test_name: $test_description: failed"
19	return $status
20fi
21
22kill_debugfs() {
23	trap 0
24	PID=$(ps -o pid,command | grep -v awk |
25		awk "/debugfs -w $TMPFILE/ { print \$1 }")
26	[ "x$PID" != "x" ] && kill -9 $PID
27}
28
29# this will cause debugfs to create the $test_name.mark file once it has
30# passed the MMP startup, then continue reading input until it is killed
31MARKFILE=$test_name.new
32rm -f $MARKFILE
33trap kill_debugfs EXIT
34echo "set mmp sequence to EXT2_MMP_SEQ_FSCK..." >> $test_name.log
35( { echo dump_mmp; echo "dump_inode <2> $MARKFILE"; cat /dev/zero; } |
36	$DEBUGFS -w $TMPFILE >> $test_name.log 2>&1 & ) > /dev/null 2>&1 &
37echo "wait until debugfs has started ..." >> $test_name.log
38while [ ! -e $MARKFILE ]; do
39	sleep 1
40done
41rm -f $MARKFILE
42echo "kill debugfs abruptly (simulates e2fsck failure) ..." >> $test_name.log
43kill_debugfs
44
45
46echo "e2fsck (should fail mmp_seq = EXT2_MMP_SEQ_FSCK) ..." >> $test_name.log
47$FSCK $FSCK_OPT $TMPFILE >> $test_name.log 2>&1
48status=$?
49if [ "$status" = 0 ] ; then
50	echo "e2fsck with MMP as EXT2_MMP_SEQ_FSCK ran!" > $test_name.failed
51	echo "$test_name: $test_description: failed"
52	return 1
53fi
54
55echo "clear mmp_seq with tune2fs ..." >> $test_name.log
56$TUNE2FS -f -E clear_mmp $TMPFILE >> $test_name.log 2>&1
57status=$?
58if [ "$status" != 0 ] ; then
59	echo "tune2fs clearing EXT2_MMP_SEQ_FSCK failed" > $test_name.failed
60	echo "$test_name: $test_description: failed"
61	return 1
62fi
63
64echo "run e2fsck again (should pass with clean mmp_seq) ..." >> $test_name.log
65$FSCK $FSCK_OPT $TMPFILE >> $test_name.log 2>&1
66status=$?
67if [ "$status" != 0 ] ; then
68	echo "e2fsck after clearing EXT2_MMP_SEQ_FSCK failed"> $test_name.failed
69	echo "$test_name: $test_description: failed"
70	return $status
71fi
72
73echo "$test_name: $test_description: ok"
74rm -f $TMPFILE
75