Corrupt csum entry of a file and re-create csum tree using --init-csum
Signed-off-by: Lakshmipathi.G <lakshmipath...@giis.co.in>
---
.../fsck-tests/025-verify-init-csum-option/test.sh | 38 ++++++++++++++++++++++
1 file changed, 38 insertions(+)
create mode 100755 tests/fsck-tests/025-verify-init-csum-option/test.sh
diff --git a/tests/fsck-tests/025-verify-init-csum-option/test.sh
b/tests/fsck-tests/025-verify-init-csum-option/test.sh
new file mode 100755
index 0000000..f496b33
--- /dev/null
+++ b/tests/fsck-tests/025-verify-init-csum-option/test.sh
@@ -0,0 +1,38 @@
+#!/bin/bash
+# This is a basic script to verify --init-csum recreates the csum tree.
+
+source $TOP/tests/common
+
+check_prereq btrfs-corrupt-block
+check_prereq mkfs.btrfs
+check_prereq btrfs
+
+setup_root_helper
+prepare_test_dev 512M
+
+
+# simulate missing csum error and repair using init-csum option
+test_csum_corruption()
+{
+ run_check $SUDO_HELPER $TOP/mkfs.btrfs -f $TEST_DEV
+
+ run_check_mount_test_dev
+
+ export DATASET_SIZE=1
+ generate_dataset small
+
+ run_check_umount_test_dev
+
+ # find bytenr
+ bytenr=`$SUDO_HELPER $TOP/btrfs inspect-internal dump-tree -t csum
$TEST_DEV | \
+ sed -n -r 's/.*EXTENT_CSUM (.*)\) itemoff .*/\1/p'`
+
+ # corrupt csum bytenr
+ run_check $SUDO_HELPER $TOP/btrfs-corrupt-block -C $bytenr $TEST_DEV
+ $SUDO_HELPER $TOP/btrfs check $TEST_DEV &>> $RESULTS && \
+ _fail "btrfs check failed to detect missing csum."
+ run_check $SUDO_HELPER $TOP/btrfs check --repair --init-csum $TEST_DEV
+ run_check $SUDO_HELPER $TOP/btrfs check $TEST_DEV
+}
+
+test_csum_corruption
--
2.7.4
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