blob: c1cb04f580ba327314902d855519eb04c96d531f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
#!/bin/bash
# Test if mkfs.btrfs --rootdir will skip shrinking correctly
source "$TOP/tests/common"
check_prereq mkfs.btrfs
setup_root_helper
fs_size=$((512 * 1024 * 1024))
bs=$((1024 * 1024))
tmp=$(mktemp -d --tmpdir btrfs-progs-mkfs.rootdirXXXXXXX)
prepare_test_dev $fs_size
# No shrink case
run_check "$TOP/mkfs.btrfs" -f --rootdir "$tmp" "$TEST_DEV"
run_check_mount_test_dev
# We should be able to write at least half of the fs size data since the fs is
# not shrunk
run_check $SUDO_HELPER dd if=/dev/zero bs=$bs count=$(($fs_size / $bs / 2)) \
of="$TEST_MNT/file"
run_check_umount_test_dev
# Shrink case
run_check "$TOP/mkfs.btrfs" -f --rootdir "$tmp" --shrink "$TEST_DEV"
run_check_mount_test_dev
run_mustfail "mkfs.btrfs for shrink rootdir" \
$SUDO_HELPER dd if=/dev/zero bs=$bs count=$(($fs_size / $bs / 2)) \
of="$TEST_MNT/file"
run_check_umount_test_dev
rm -rf -- "$tmp"
|
