3 source $top/tests/common
5 if [ -z $TEST_DEV ]; then
6 echo " [NOTRUN] extent tree rebuild, need TEST_DEV variant"
10 if [ -z $TEST_MNT ];then
11 echo " [NOTRUN] extent tree rebuild, need TEST_MNT variant"
15 # test whether fsck can rebuild a corrupted extent tree
16 test_extent_tree_rebuild()
18 echo " [TEST] extent tree rebuild"
19 $top/mkfs.btrfs -f $TEST_DEV >> /dev/null 2>&1 || _fail "fail to mkfs"
21 run_check mount $TEST_DEV $TEST_MNT
22 cp -aR /lib/modules/`uname -r`/ $TEST_MNT 2>&1
24 for i in `seq 1 100`;do
25 $top/btrfs sub snapshot $TEST_MNT \
26 $TEST_MNT/snapaaaaaaa_$i >& /dev/null
28 run_check umount $TEST_DEV
30 # get extent root bytenr
31 extent_root_bytenr=`$top/btrfs-debug-tree -r $TEST_DEV | \
32 grep extent | awk '{print $7}'`
33 if [ -z $extent_root_bytenr ];then
34 _fail "fail to get extent root bytenr"
37 # corrupt extent root node block
38 run_check $top/btrfs-corrupt-block -l $extent_root_bytenr \
41 $top/btrfs check $TEST_DEV >& /dev/null && \
42 _fail "btrfs check should detect failure"
43 run_check $top/btrfs check --init-extent-tree $TEST_DEV
44 run_check $top/btrfs check $TEST_DEV
47 test_extent_tree_rebuild