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#!/bin/bash
# test zero-log
source $TOP/tests/common
check_prereq btrfs-show-super
check_prereq mkfs.btrfs
check_prereq btrfs
if [ -z $TEST_DEV ]; then
echo "\$TEST_DEV not given, use $TOP/test/test.img as fallback" >> \
$RESULTS
TEST_DEV="$TOP/tests/test.img"
# Need at least 1G to avoid mixed block group, which extent tree
# rebuild doesn't support.
run_check truncate -s 1G $TEST_DEV
fi
if [ -z $TEST_MNT ];then
echo " [NOTRUN] extent tree rebuild, need TEST_MNT variant"
exit 0
fi
get_log_root()
{
local image
image="$1"
$TOP/btrfs-show-super "$image" | \
grep '^log_root\>' | awk '{print $2}'
}
get_log_root_level() {
local image
image="$1"
$TOP/btrfs-show-super "$image" | \
grep '^log_root_level' | awk '{print $2}'
}
test_zero_log()
{
# FIXME: we need an image with existing log_root
run_check $SUDO_HELPER $TOP/mkfs.btrfs -f \
--rootdir $TOP/Documentation \
$TEST_DEV
run_check $TOP/btrfs-show-super $TEST_DEV
if [ "$1" = 'standalone' ]; then
run_check $TOP/btrfs rescue zero-log $TEST_DEV
else
run_check $TOP/btrfs-zero-log $TEST_DEV
fi
log_root=$(get_log_root $TEST_DEV)
log_root_level=$(get_log_root $TEST_DEV)
if [ "$log_root" != 0 ]; then
_fail "FAIL: log_root not reset"
fi
if [ "$log_root_level" != 0 ]; then
_fail "FAIL: log_root_level not reset"
fi
run_check $TOP/btrfs-show-super $TEST_DEV
run_check $SUDO_HELPER $TOP/btrfs check $TEST_DEV
}
test_zero_log standalone
test_zero_log internal
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