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
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
#!/usr/bin/env bash
# Copyright (C) 2019 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# no automatic extensions, just umount
SKIP_WITH_LVMPOLLD=1
. lib/inittest
mntdir="${PREFIX}mnt with space"
PERCENT=70
cleanup_mounted_and_teardown()
{
test -z "$PID_SLEEP" || { kill "$PID_SLEEP" || true ; }
umount "$mntdir" 2>/dev/null || true
vgremove -ff $vg
aux teardown
}
is_lv_opened_()
{
test "$(get lv_field "$1" lv_device_open --binary)" = 1
}
#
# Main
#
which mkfs.ext4 || skip
export MKE2FS_CONFIG="$TESTDIR/lib/mke2fs.conf"
aux have_vdo 6 2 0 || skip
# Simple implementation of umount when lvextend fails
# Script enforces failin exit, so dmeventd tries several times
# repeatedly to invoke this for given percentage
cat <<- EOF >testcmd.sh
#!/bin/sh
echo "VDO Pool: \$DMEVENTD_VDO_POOL"
"$TESTDIR/lib/lvextend" --use-policies \$1 || {
umount "$mntdir" && exit 0
touch $PWD/TRIED_UMOUNT
}
test "\$($TESTDIR/lib/lvs -o selected -S "data_percent>=$PERCENT" --noheadings \$1)" -eq 0 || {
echo "Percentage still above $PERCENT"
}
exit 1
EOF
chmod +x testcmd.sh
# Show prepared script
cat testcmd.sh
# Use autoextend percent 0 - so extension fails and triggers umount...
aux lvmconf "activation/vdo_pool_autoextend_percent = 0" \
"activation/vdo_pool_autoextend_threshold = $PERCENT" \
"dmeventd/vdo_command = \"$PWD/testcmd.sh\"" \
"allocation/vdo_slab_size_mb = 128"
aux prepare_dmeventd
aux prepare_vg 1 9000
lvcreate --vdo -L4G -V2G -n $lv1 $vg/vpool
mkfs.ext4 -E nodiscard "$DM_DEV_DIR/$vg/$lv1"
lvchange --monitor y $vg/vpool
mkdir "$mntdir"
trap 'cleanup_mounted_and_teardown' EXIT
mount "$DM_DEV_DIR/$vg/$lv1" "$mntdir"
# Check both LV is opened (~mounted)
is_lv_opened_ "$vg/$lv1"
touch "$mntdir/file$$"
sync
# Running 'keeper' process sleep holds the block device still in use
sleep 60 < "$mntdir/file$$" >/dev/null 2>&1 &
PID_SLEEP=$!
lvs -a $vg
# Fill pool above 95% (to cause 'forced lazy umount)
dd if=/dev/urandom of="$mntdir/file$$" bs=256K count=200 oflag=direct
lvs -a $vg
# Could loop here for a few secs so dmeventd can do some work
# In the worst case check only happens every 10 seconds :(
for i in $(seq 1 12) ; do
is_lv_opened_ "$vg/$lv1" || break
test ! -f "TRIED_UMOUNT" || continue # finish loop quickly
sleep 1
done
rm -f "TRIED_UMOUNT"
test "$i" -eq 12 || die "$mntdir should NOT have been unmounted by dmeventd!"
lvs -a $vg
# Kill device holding process - umount should work now
kill "$PID_SLEEP"
PID_SLEEP=
wait
# Could loop here for a few secs so dmeventd can do some work
# In the worst case check only happens every 10 seconds :(
for i in $(seq 1 12) ; do
is_lv_opened_ "$vg/$lv1" || break
test "$i" -lt 12 || die "$mntdir should have been unmounted by dmeventd!"
sleep 1
done
# vgremove is managed through cleanup_mounted_and_teardown()
|
