blob: 1335b8cb321ded48cbf310728407ad25ad87d387 (
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
|
#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2013 Fusion IO. All Rights Reserved.
#
# FS QA Test No. btrfs/013
#
# Regression test for balance with prealloc extents. This checks to make sure
# we are balacing prealloc'ed extents properly by making sure we don't have any
# csum errors. Unfortunately this manifests itself with no csum which means
# userspace doesn't get an error when reading the file back so we have to grok
# dmesg to see if there was a csum error.
#
. ./common/preamble
_begin_fstest auto quick balance
# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs btrfs
_require_scratch
_require_xfs_io_command "falloc"
_scratch_mkfs > /dev/null 2>&1
_scratch_mount
nr_csum_no_found=$(dmesg | grep -c "no csum found")
nr_csum_failed=$(dmesg | grep -c "csum failed")
_check_csum_error()
{
new_csum_no_found=$(dmesg | grep -c "no csum found")
new_csum_failed=$(dmesg | grep -c "csum failed")
if [ $nr_csum_no_found -eq $new_csum_no_found -a \
$nr_csum_failed -eq $new_csum_failed ]; then
return 0
fi
return 1
}
$XFS_IO_PROG -f -c "falloc 0 1M" -c "pwrite 16k 8k" -c "fsync" \
$SCRATCH_MNT/foo > $seqres.full 2>&1
_run_btrfs_balance_start $SCRATCH_MNT >> $seqres.full
_scratch_unmount
_scratch_mount
$XFS_IO_PROG -c "pread 0 1M" $SCRATCH_MNT/foo >> $seqres.full 2>&1 || \
_fail "pread failed"
# This sucks but unfortunately it is the only way to be sure something didn't go
# wrong.
_check_csum_error || _fail "csum detected, please check dmesg"
echo "Silence is golden"
status=0 ; exit
|
