blob: df8df3181fce87d92d3690dcc7c10a8be6e8a52c (
plain) (
blame)
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
128
|
#!/usr/bin/env bash
get_devtype() {
local typ
typ=$(udevadm info --query=property --name="$1" | sed -n 's|^ID_FS_TYPE=||p')
if [ -z "$typ" ] ; then
typ=$(blkid -c /dev/null "$1" -o value -s TYPE)
fi
echo "$typ"
}
get_pool_devices() {
# also present in 99zfssystemd
local poolconfigtemp
local poolconfigoutput
local pooldev
local resolved
poolconfigtemp="$(mktemp)"
if ! @sbindir@/zpool list -v -H -P "$1" > "$poolconfigtemp" 2>&1 ; then
poolconfigoutput="$(cat "$poolconfigtemp")"
dinfo "zfsexpandknowledge: pool $1 cannot be listed: $poolconfigoutput"
else
awk -F '\t' '/\t\/dev/ { print $2 }' "$poolconfigtemp" | \
while read -r pooldev ; do
if [ -e "$pooldev" ] ; then
resolved="$(readlink -f "$pooldev")"
dinfo "zfsexpandknowledge: pool $1 has device $pooldev (which resolves to $resolved)"
echo "$resolved"
fi
done
fi
rm -f "$poolconfigtemp"
}
find_zfs_block_devices() {
local dev
local mp
local fstype
local _
numfields="$(awk '{print NF; exit}' /proc/self/mountinfo)"
if [ "$numfields" = "10" ] ; then
fields="_ _ _ _ mp _ _ fstype dev _"
else
fields="_ _ _ _ mp _ _ _ fstype dev _"
fi
# shellcheck disable=SC2086
while read -r ${fields?} ; do
[ "$fstype" = "zfs" ] || continue
[ "$mp" = "$1" ] && get_pool_devices "${dev%%/*}"
done < /proc/self/mountinfo
}
array_contains () {
local e
for e in "${@:2}"; do [[ "$e" == "$1" ]] && return 0; done
return 1
}
check() {
# https://github.com/dracutdevs/dracut/pull/1711 provides a zfs_devs
# function to detect the physical devices backing zfs pools. If this
# function exists in the version of dracut this module is being called
# from, then it does not need to run.
type zfs_devs >/dev/null 2>&1 && return 1
local mp
local dev
local blockdevs
local fstype
local majmin
local _depdev
local _depdevname
local _depdevtype
# shellcheck disable=SC2154
if [ -n "$hostonly" ]; then
for mp in \
"/" \
"/etc" \
"/bin" \
"/sbin" \
"/lib" \
"/lib64" \
"/usr" \
"/usr/bin" \
"/usr/sbin" \
"/usr/lib" \
"/usr/lib64" \
"/boot";
do
mp=$(readlink -f "$mp")
mountpoint "$mp" >/dev/null 2>&1 || continue
blockdevs=$(find_zfs_block_devices "$mp")
if [ -z "$blockdevs" ] ; then continue ; fi
dinfo "zfsexpandknowledge: block devices backing ZFS dataset $mp: ${blockdevs//$'\n'/ }"
for dev in $blockdevs
do
array_contains "$dev" "${host_devs[@]}" || host_devs+=("$dev")
fstype=$(get_devtype "$dev")
host_fs_types["$dev"]="$fstype"
majmin=$(get_maj_min "$dev")
if [ -d "/sys/dev/block/$majmin/slaves" ] ; then
for _depdev in "/sys/dev/block/$majmin/slaves"/*; do
[ -f "$_depdev/dev" ] || continue
_depdev="/dev/${_depdev##*/}"
_depdevname=$(udevadm info --query=property --name="$_depdev" | sed -n 's|^DEVNAME=||p')
_depdevtype=$(get_devtype "$_depdevname")
dinfo "zfsexpandknowledge: underlying block device backing ZFS dataset $mp: ${_depdevname//$'\n'/ }"
array_contains "$_depdevname" "${host_devs[@]}" || host_devs+=("$_depdevname")
host_fs_types["$_depdevname"]="$_depdevtype"
done
fi
done
done
for a in "${host_devs[@]}"
do
dinfo "zfsexpandknowledge: host device $a"
done
for a in "${!host_fs_types[@]}"
do
dinfo "zfsexpandknowledge: device $a of type ${host_fs_types[$a]}"
done
fi
return 1
}
|
