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authorWang Shilong <wangsl.fnst@cn.fujitsu.com>2014-05-29 18:01:44 +0800
committerDavid Sterba <dsterba@suse.cz>2014-08-22 14:43:10 +0200
commit8efdd3ca4cbeaf51908f04ba9ea1fb689a30241f (patch)
tree92f97e265d63fb173860adca1cfa1099ddc86232
parent792ef0938d2a3a504e7b98ee8118a3de09c78f28 (diff)
Btrfs-progs: fsck: add tests for extent tree rebuilding
We need test to verify extent tree rebuilding work, this test create a strange filesystem with some snapshots, destroy extent root node, and run fsck with "--init-extent-tree". Since this tests need btrfs internal tool(btrfs-corrupt-block),so i add this test into btrfs-progs. Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.cz>
-rw-r--r--tests/fsck-tests.sh69
1 files changed, 58 insertions, 11 deletions
diff --git a/tests/fsck-tests.sh b/tests/fsck-tests.sh
index 25c390d0..b783b78e 100644
--- a/tests/fsck-tests.sh
+++ b/tests/fsck-tests.sh
@@ -6,27 +6,74 @@
#
here=`pwd`
+TEST_DEV=
+TEST_MNT=
+RESULT="fsck-tests-results.txt"
_fail()
{
- echo "$*" | tee -a fsck-tests-results.txt
+ echo "$*" | tee -a $RESULT
exit 1
}
-rm -f fsck-tests-results.txt
+run_check()
+{
+ echo "############### $@" >> $RESULT 2>&1
+ "$@" >> $RESULT 2>&1 || _fail "failed: $@"
+}
+
+rm -f $RESULT
+
+if [ -z $TEST_DEV ] || [ -z $TEST_MNT ];then
+ _fail "please set TEST_DEV and TEST_MNT"
+fi
+
+# test rely on corrupting blocks tool
+run_check make btrfs-corrupt-block
for i in $(find $here/tests/fsck-tests -name '*.img')
do
echo " [TEST] $(basename $i)"
- echo "testing image $i" >> fsck-tests-results.txt
- $here/btrfs-image -r $i test.img >> fsck-tests-results.txt 2>&1 \
- || _fail "restore failed"
- $here/btrfsck test.img >> fsck-test-results.txt 2>&1
- [ $? -eq 0 ] && _fail "btrfsck should have detected corruption"
+ echo "testing image $i" >> $RESULT
+
+ run_check $here/btrfs-image -r $i test.img
- $here/btrfsck --repair test.img >> fsck-test-results.txt 2>&1 || \
- _fail "btrfsck should have repaired the image"
+ $here/btrfsck test.img >> $RESULT 2>&1
+ [ $? -eq 0 ] && _fail "btrfsck should have detected corruption"
- $here/btrfsck test.img >> fsck-test-results.txt 2>&1 || \
- _fail "btrfsck did not correct corruption"
+ run_check $here/btrfsck --repair test.img
+ run_check $here/btrfsck test.img
done
+
+# test whether fsck can rebuild a corrupted extent tree
+test_extent_tree_rebuild()
+{
+ echo " [TEST] extent tree rebuild"
+ $here/mkfs.btrfs -f $TEST_DEV >> /dev/null 2>&1 || _fail "fail to mkfs"
+
+ run_check mount $TEST_DEV $TEST_MNT
+ cp -aR /lib/modules/`uname -r`/ $TEST_MNT 2>&1
+
+ for i in `seq 1 100`;do
+ $here/btrfs sub snapshot $TEST_MNT \
+ $TEST_MNT/snapaaaaaaa_$i >& /dev/null
+ done
+ run_check umount $TEST_DEV
+
+ # get extent root bytenr
+ extent_root_bytenr=`$here/btrfs-debug-tree -r $TEST_DEV | grep extent | awk '{print $7}'`
+ if [ -z $extent_root_bytenr ];then
+ _fail "fail to get extent root bytenr"
+ fi
+
+ # corrupt extent root node block
+ run_check $here/btrfs-corrupt-block -l $extent_root_bytenr \
+ -b 4096 $TEST_DEV
+
+ $here/btrfs check $TEST_DEV >& /dev/null && \
+ _fail "fsck should detect failure"
+ run_check $here/btrfs check --init-extent-tree $TEST_DEV
+ run_check $here/btrfs check $TEST_DEV
+}
+
+test_extent_tree_rebuild