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|
#!/bin/bash
# Basic test for mkfs.btrfs --subvol option
source "$TEST_TOP/common" || exit
check_prereq mkfs.btrfs
check_prereq btrfs
setup_root_helper
prepare_test_dev
tmp=$(_mktemp_dir mkfs-rootdir)
basic()
{
run_check touch "$tmp/foo"
run_check mkdir "$tmp/dir"
run_check mkdir "$tmp/dir/subvol"
run_check touch "$tmp/dir/subvol/bar"
if [ "$1" != "" ]; then
run_check_mkfs_test_dev --rootdir "$tmp" --subvol $1:dir/subvol
else
run_check_mkfs_test_dev --rootdir "$tmp" --subvol dir/subvol
fi
run_check $SUDO_HELPER "$TOP/btrfs" check "$TEST_DEV"
run_check_mount_test_dev -o subvolid=5
run_check_stdout $SUDO_HELPER "$TOP/btrfs" subvolume list "$TEST_MNT" | \
cut -d\ -f9 > "$tmp/output"
run_check_stdout "$TOP/btrfs" property get "$TEST_MNT/dir/subvol" ro | \
cut -d = -f2 > "$tmp/output2"
run_check_stdout "$TOP/btrfs" subvolume get-default "$TEST_MNT" | \
cut -d\ -f2 > "$tmp/output3"
run_check_umount_test_dev
result=$(cat "$tmp/output")
if [ "$result" != "dir/subvol" ]; then
_fail "dir/subvol not in subvolume list"
fi
result=$(cat "$tmp/output2")
if [ "$1" == "ro" -o "$1" == "default-ro" ]; then
if [ "$result" != "true" ]; then
_fail "dir/subvol was read-write, expected read-only"
fi
else
if [ "$result" != "false" ]; then
_fail "dir/subvol was read-only, expected read-write"
fi
fi
result=$(cat "$tmp/output3")
if [ "$1" == "default" -o "$1" == "default-ro" ]; then
if [ "$result" != "256" ]; then
_fail "default subvol was $result, expected 256"
fi
else
if [ "$result" != "5" ]; then
_fail "default subvol was $result, expected 5"
fi
fi
rm -rf -- "$tmp/foo" "$tmp/dir"
}
basic_hardlinks()
{
run_check touch "$tmp/hl1"
run_check ln "$tmp/hl1" "$tmp/hl2"
run_check mkdir "$tmp/dir"
run_check ln "$tmp/hl1" "$tmp/dir/hl3"
run_check_mkfs_test_dev --rootdir "$tmp"
run_check $SUDO_HELPER "$TOP/btrfs" check "$TEST_DEV"
run_check_mount_test_dev
nr_hardlink=$(run_check_stdout $SUDO_HELPER stat -c "%h" "$TEST_MNT/hl1")
if [ "$nr_hardlink" -ne 3 ]; then
_fail "hard link number incorrect, has ${nr_hardlink} expect 3"
fi
run_check_umount_test_dev
rm -rf -- "$tmp/hl1" "$tmp/hl2" "$tmp/dir"
}
split_by_subvolume_hardlinks()
{
run_check touch "$tmp/hl1"
run_check ln "$tmp/hl1" "$tmp/hl2"
run_check mkdir "$tmp/subv"
run_check ln "$tmp/hl1" "$tmp/subv/hl3"
if [ "$1" != "" ]; then
run_check_mkfs_test_dev --rootdir "$tmp" --subvol $1:subv
else
run_check_mkfs_test_dev --rootdir "$tmp" --subvol subv
fi
run_check $SUDO_HELPER "$TOP/btrfs" check "$TEST_DEV"
run_check_mount_test_dev -o subvolid=5
nr_hardlink=$(run_check_stdout $SUDO_HELPER stat -c "%h" "$TEST_MNT/hl1")
if [ "$nr_hardlink" -ne 2 ]; then
_fail "hard link number incorrect for hl1, has ${nr_hardlink} expect 2"
fi
nr_hardlink=$(run_check_stdout $SUDO_HELPER stat -c "%h" "$TEST_MNT/subv/hl3")
if [ "$nr_hardlink" -ne 1 ]; then
_fail "hard link number incorrect for subv/hl3, has ${nr_hardlink} expect 1"
fi
run_check_umount_test_dev
rm -rf -- "$tmp/hl1" "$tmp/hl2" "$tmp/subv"
}
for mod in "" ro rw default default-ro;
do
basic $mod
split_by_subvolume_hardlinks $mod
done
basic_hardlinks
rm -rf -- "$tmp"
|
