blob: e95dcb367915d4df03cd48051f3a81c08b35e9eb (
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
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
#!/bin/bash
# Test zstd compression support on a prebuilt btrfs image
source "$TOP/tests/common"
check_prereq btrfs
check_global_prereq md5sum
# Extract the test image
image=$(extract_image compress.raw.xz)
check_dump_tree() {
local image=$1
local string=$2
run_check_stdout "$TOP/btrfs" inspect-internal dump-tree "$image" \
| grep -q "$string" \
|| _fail "btrfs inspect-internal dump-tree didn't print $string"
}
# Check that there are blocks of each compression type
check_dump_tree "$image" "extent compression 1 (zlib)"
check_dump_tree "$image" "extent compression 2 (lzo)"
check_dump_tree "$image" "extent compression 3 (zstd)"
# Check that the filesystem has incompat COMPRESS_ZSTD
run_check_stdout "$TOP/btrfs" inspect-internal dump-super -f "$image" \
| grep -q COMPRESS_ZSTD \
|| _fail "btrfs inspect-internal dump-super no incompat COMPRESS_ZSTD"
# Create a temporary directory and restore the filesystem
restore_tmp=$(mktemp --tmpdir -d btrfs-progs-022-zstd-compression.XXXXXXXXXX)
run_check "$TOP/btrfs" restore "$image" "$restore_tmp"
# Expect 3 files
num_files=$(ls -1 "$restore_tmp" | wc -l)
[ "$num_files" == 3 ] || _fail "number of files does not match"
check_md5() {
local file="$1"
local expect_md5="$2"
md5=$(run_check_stdout md5sum "$file" | cut -d ' ' -f 1)
[ "$md5" == "$expect_md5" ] \
|| _fail "$file digest $md5 does not match $expect_md5"
}
# Each should be 200K of zeros
expect_md5=$(dd if=/dev/zero bs=1K count=200 status=none | md5sum | cut -d ' ' -f 1)
check_md5 "$restore_tmp/zlib" "$expect_md5"
check_md5 "$restore_tmp/lzo" "$expect_md5"
check_md5 "$restore_tmp/zstd" "$expect_md5"
# Clean up
rm -r -- "$restore_tmp"
rm -- "$image"
|
