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btrfs-progs: tests: 029-super-recovery: cleanup the test

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Transform the test to the common helpers and don't manage the loop
devices here. The test category changes from check to misc.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2018-01-23 16:25:11 +01:00
parent e764625f90
commit de802a47e0
1 changed files with 18 additions and 25 deletions
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43
tests/fsck-tests/029-superblock-recovery/test.sh → tests/misc-tests/028-superblock-recover/test.sh
View File

@ -1,6 +1,5 @@
#!/bin/bash
# Test that any superblock is correctly detected
# and fixed by btrfs rescue
# Test that any superblock is correctly detected and fixed by btrfs rescue
source "$TOP/tests/common"
@ -9,56 +8,50 @@ check_prereq mkfs.btrfs
check_prereq btrfs-select-super
setup_root_helper
rm -f dev1
run_check truncate -s 260G dev1
loop=$(run_check_stdout $SUDO_HELPER losetup --find --show dev1)
prepare_test_dev 260G
# Create the test file system.
run_check $SUDO_HELPER "$TOP"/mkfs.btrfs -f "$loop"
run_check $SUDO_HELPER "$TOP"/mkfs.btrfs -f "$TEST_DEV"
function check_corruption {
local sb_offset=$1
local source_sb=$2
# First we ensure we can mount it successfully
run_check $SUDO_HELPER mount $loop "$TEST_MNT"
run_check $SUDO_HELPER umount "$TEST_MNT"
run_check_mount_test_dev
run_check_umount_test_dev
# Now corrupt 1k of the superblock at sb_offset
run_check $SUDO_HELPER dd bs=1K count=1 seek=$(($sb_offset + 1)) if=/dev/zero of="$loop"
run_check $SUDO_HELPER dd bs=1K count=1 seek=$(($sb_offset + 1)) if=/dev/zero of="$TEST_DEV" conv=notrunc
#if corrupting one of the sb copies, copy it over the initial superblock
# if corrupting one of the sb copies, copy it over the initial superblock
if [ ! -z $source_sb ]; then
local shift_val=$((16 << $source_sb * 12 ))
run_check $SUDO_HELPER dd bs=1K count=4 seek=64 skip=$shift_val if="$loop" of="$loop"
run_check $SUDO_HELPER dd bs=1K count=4 seek=64 skip=$shift_val if="$TEST_DEV" of="$TEST_DEV" conv=notrunc
fi
run_mustfail "Mounted fs with corrupted superblock" \
$SUDO_HELPER mount $loop "$TEST_MNT"
# we can't use our mount helper, the following works for file image and
# block device as TEST_DEV
run_mustfail "mounted fs with corrupted superblock" \
$SUDO_HELPER mount "$TEST_DEV" "$TEST_MNT"
# Now run btrfs rescue which should fix the superblock. It uses 2
# to signal success of recovery use mayfail to ignore that retval
# but still log the output of the command
run_mayfail $SUDO_HELPER "$TOP"/btrfs rescue super-recover -yv "$loop"
run_mayfail $SUDO_HELPER "$TOP"/btrfs rescue super-recover -yv "$TEST_DEV"
if [ $? != 2 ]; then
_fail "couldn't rescue super"
fi
run_check $SUDO_HELPER mount $loop "$TEST_MNT"
run_check $SUDO_HELPER umount "$TEST_MNT"
run_check_mount_test_dev
run_check_umount_test_dev
}
_log "Corrupting first superblock"
# Corrupting first superblock
check_corruption 64
_log "Corrupting second superblock"
# Corrupting second superblock
check_corruption 65536 1
_log "Corrupting third superblock"
# Corrupting third superblock
check_corruption 268435456 2
# Cleanup
run_check $SUDO_HELPER losetup -d "$loop"
rm -f dev1