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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
/*
* Copyright (C) 2001 Sistina Software
*
* LVM is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* LVM is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with LVM; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#include "tools.h"
/* FIXME Locking. PVs in VG. */
static int _pvchange_single(struct cmd_context *cmd, struct physical_volume *pv,
void *handle)
{
struct volume_group *vg = NULL;
struct pv_list *pvl;
struct list mdas;
uint64_t sector;
const char *pv_name = dev_name(pv->dev);
int consistent = 1;
int allocatable =
!strcmp(arg_str_value(cmd, allocatable_ARG, "n"), "y");
/* If in a VG, must change using volume group. */
if (*pv->vg_name) {
log_verbose("Finding volume group of physical volume \"%s\"",
pv_name);
if (!lock_vol(cmd, pv->vg_name, LCK_VG_WRITE)) {
log_error("Can't get lock for %s", pv->vg_name);
return ECMD_FAILED;
}
if (!(vg = vg_read(cmd, pv->vg_name, &consistent))) {
unlock_vg(cmd, pv->vg_name);
log_error("Unable to find volume group of \"%s\"",
pv_name);
return 0;
}
if (vg->status & EXPORTED_VG) {
unlock_vg(cmd, pv->vg_name);
log_error("Volume group \"%s\" is exported", vg->name);
return ECMD_FAILED;
}
if (!(vg->status & LVM_WRITE)) {
unlock_vg(cmd, pv->vg_name);
log_error("Volume group \"%s\" is read-only", vg->name);
return ECMD_FAILED;
}
if (!(pvl = find_pv_in_vg(vg, pv_name))) {
unlock_vg(cmd, pv->vg_name);
log_error
("Unable to find \"%s\" in volume group \"%s\"",
pv_name, vg->name);
return 0;
}
pv = pvl->pv;
if (!archive(vg))
return 0;
} else {
if (!lock_vol(cmd, ORPHAN, LCK_VG_WRITE)) {
log_error("Can't get lock for orphans");
return ECMD_FAILED;
}
if (!(pv = pv_read(cmd, pv_name, &mdas, §or))) {
unlock_vg(cmd, ORPHAN);
log_error("Unable to read PV \"%s\"", pv_name);
return 0;
}
}
/* change allocatability for a PV */
if (allocatable && (pv->status & ALLOCATABLE_PV)) {
log_error("Physical volume \"%s\" is already allocatable",
pv_name);
if (*pv->vg_name)
unlock_vg(cmd, pv->vg_name);
else
unlock_vg(cmd, ORPHAN);
return 0;
}
if (!allocatable && !(pv->status & ALLOCATABLE_PV)) {
log_error("Physical volume \"%s\" is already unallocatable",
pv_name);
if (*pv->vg_name)
unlock_vg(cmd, pv->vg_name);
else
unlock_vg(cmd, ORPHAN);
return 0;
}
if (allocatable) {
log_verbose("Setting physical volume \"%s\" allocatable",
pv_name);
pv->status |= ALLOCATABLE_PV;
} else {
log_verbose("Setting physical volume \"%s\" NOT allocatable",
pv_name);
pv->status &= ~ALLOCATABLE_PV;
}
log_verbose("Updating physical volume \"%s\"", pv_name);
if (*pv->vg_name) {
if (!vg_write(vg) || !vg_commit(vg)) {
unlock_vg(cmd, pv->vg_name);
log_error("Failed to store physical volume \"%s\" in "
"volume group \"%s\"", pv_name, vg->name);
return 0;
}
backup(vg);
unlock_vg(cmd, pv->vg_name);
} else {
if (!(pv_write(cmd, pv, &mdas, (int64_t) sector))) {
unlock_vg(cmd, ORPHAN);
log_error("Failed to store physical volume \"%s\"",
pv_name);
return 0;
}
unlock_vg(cmd, ORPHAN);
}
log_print("Physical volume \"%s\" changed", pv_name);
return 1;
}
int pvchange(struct cmd_context *cmd, int argc, char **argv)
{
int opt = 0;
int done = 0;
int total = 0;
struct physical_volume *pv;
char *pv_name;
struct list *pvh, *pvslist;
struct list mdas;
list_init(&mdas);
if (arg_count(cmd, allocatable_ARG) == 0) {
log_error("Please give the x option");
return EINVALID_CMD_LINE;
}
if (!(arg_count(cmd, all_ARG)) && !argc) {
log_error("Please give a physical volume path");
return EINVALID_CMD_LINE;
}
if (arg_count(cmd, all_ARG) && argc) {
log_error("Option a and PhysicalVolumePath are exclusive");
return EINVALID_CMD_LINE;
}
if (argc) {
log_verbose("Using physical volume(s) on command line");
for (; opt < argc; opt++) {
pv_name = argv[opt];
/* FIXME Read VG instead - pv_read will fail */
if (!(pv = pv_read(cmd, pv_name, &mdas, NULL))) {
log_error
("Failed to read physical volume \"%s\"",
pv_name);
continue;
}
total++;
done += _pvchange_single(cmd, pv, NULL);
}
} else {
log_verbose("Scanning for physical volume names");
if (!(pvslist = get_pvs(cmd))) {
return ECMD_FAILED;
}
list_iterate(pvh, pvslist) {
total++;
done += _pvchange_single(cmd,
list_item(pvh,
struct pv_list)->pv,
NULL);
}
}
log_print("%d physical volume%s changed / %d physical volume%s "
"not changed",
done, done > 1 ? "s" : "",
total - done, total - done > 1 ? "s" : "");
return 0;
}
|
