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
|
#!/bin/bash
# test if mkfs.btrfs will create file systems that overflow total_bytes
source "$TEST_TOP/common"
check_prereq mkfs.btrfs
check_prereq btrfs
setup_root_helper
prepare_test_dev
# create a temporary btrfs filesystem for the images to make sure the
# exabyte-scale files will be reliably created
run_check_mkfs_test_dev
run_check_mount_test_dev
# truncate can fail with EFBIG if the OS cannot create a 6EiB file
out=$(run_mayfail_stdout $SUDO_HELPER truncate -s 6E "$TEST_MNT/img1" 2>&1)
ret=$?
if [ $ret -ne 0 ]; then
run_check_umount_test_dev
if [[ "$out" == *"File too large"* ]]; then
_not_run "current kernel could not create a 6EiB file"
fi
_fail "command 'truncate -s 6E' failed: $out"
fi
run_check $SUDO_HELPER truncate -s 6E "$TEST_MNT/img2"
run_check $SUDO_HELPER truncate -s 6E "$TEST_MNT/img3"
run_mustfail "mkfs for too-large images" \
$SUDO_HELPER "$TOP/mkfs.btrfs" -f "$TEST_MNT"/img[123]
run_check_umount_test_dev
|
