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sourceware.org Git - lvm2.git/blob - tools/pvscan.c
2 * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
3 * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
5 * This file is part of LVM2.
7 * This copyrighted material is made available to anyone wishing to use,
8 * modify, copy, or redistribute it subject to the terms and conditions
9 * of the GNU Lesser General Public License v.2.1.
11 * You should have received a copy of the GNU Lesser General Public License
12 * along with this program; if not, write to the Free Software Foundation,
13 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 int pv_max_name_len
= 0;
19 int vg_max_name_len
= 0;
21 static void _pvscan_display_single(struct cmd_context
*cmd
,
22 struct physical_volume
*pv
,
23 void *handle
__attribute((unused
)))
25 char uuid
[64] __attribute((aligned(8)));
26 unsigned vg_name_len
= 0;
28 char pv_tmp_name
[NAME_LEN
] = { 0, };
29 char vg_tmp_name
[NAME_LEN
] = { 0, };
30 char vg_name_this
[NAME_LEN
] = { 0, };
33 if (arg_count(cmd
, short_ARG
) > 0) {
34 log_print("%s", pv_dev_name(pv
));
38 if (arg_count(cmd
, verbose_ARG
) > 1) {
39 /* FIXME As per pv_display! Drop through for now. */
42 /* FIXME - Moved to Volume Group structure */
43 /* log_print("System Id %s", pv->vg->system_id); */
49 memset(pv_tmp_name
, 0, sizeof(pv_tmp_name
));
51 vg_name_len
= strlen(pv_vg_name(pv
)) + 1;
53 if (arg_count(cmd
, uuid_ARG
)) {
54 if (!id_write_format(&pv
->id
, uuid
, sizeof(uuid
))) {
59 sprintf(pv_tmp_name
, "%-*s with UUID %s",
60 pv_max_name_len
- 2, pv_dev_name(pv
), uuid
);
62 sprintf(pv_tmp_name
, "%s", pv_dev_name(pv
));
66 log_print("PV %-*s %-*s %s [%s]",
67 pv_max_name_len
, pv_tmp_name
,
69 pv
->fmt
? pv
->fmt
->name
: " ",
70 display_size(cmd
, pv_size(pv
)));
74 if (pv_status(pv
) & EXPORTED_VG
) {
75 strncpy(vg_name_this
, pv_vg_name(pv
), vg_name_len
);
76 log_print("PV %-*s is in exported VG %s "
78 pv_max_name_len
, pv_tmp_name
,
80 display_size(cmd
, (uint64_t) pv_pe_count(pv
) *
82 display_size(cmd
, (uint64_t) (pv_pe_count(pv
) -
83 pv_pe_alloc_count(pv
))
88 sprintf(vg_tmp_name
, "%s", pv_vg_name(pv
));
89 log_print("PV %-*s VG %-*s %s [%s / %s free]", pv_max_name_len
,
90 pv_tmp_name
, vg_max_name_len
, vg_tmp_name
,
91 pv
->fmt
? pv
->fmt
->name
: " ",
92 display_size(cmd
, (uint64_t) pv_pe_count(pv
) *
94 display_size(cmd
, (uint64_t) (pv_pe_count(pv
) -
95 pv_pe_alloc_count(pv
)) *
100 int pvscan(struct cmd_context
*cmd
, int argc
__attribute((unused
)),
101 char **argv
__attribute((unused
)))
103 int new_pvs_found
= 0;
106 struct dm_list
*pvslist
;
108 struct physical_volume
*pv
;
110 uint64_t size_total
= 0;
111 uint64_t size_new
= 0;
117 if (arg_count(cmd
, novolumegroup_ARG
) && arg_count(cmd
, exported_ARG
)) {
118 log_error("Options -e and -n are incompatible");
119 return EINVALID_CMD_LINE
;
122 if (arg_count(cmd
, exported_ARG
) || arg_count(cmd
, novolumegroup_ARG
))
123 log_warn("WARNING: only considering physical volumes %s",
124 arg_count(cmd
, exported_ARG
) ?
125 "of exported volume group(s)" : "in no volume group");
127 if (!lock_vol(cmd
, VG_GLOBAL
, LCK_VG_WRITE
)) {
128 log_error("Unable to obtain global lock.");
132 persistent_filter_wipe(cmd
->filter
);
133 lvmcache_destroy(cmd
, 1);
135 log_verbose("Walking through all physical volumes");
136 if (!(pvslist
= get_pvs(cmd
))) {
137 unlock_vg(cmd
, VG_GLOBAL
);
142 /* eliminate exported/new if required */
143 dm_list_iterate_items(pvl
, pvslist
) {
146 if ((arg_count(cmd
, exported_ARG
)
147 && !(pv_status(pv
) & EXPORTED_VG
))
148 || (arg_count(cmd
, novolumegroup_ARG
) && (!is_orphan(pv
)))) {
149 dm_list_del(&pvl
->list
);
153 /* Also check for MD use? */
155 if (MAJOR(pv_create_kdev_t(pv[p]->pv_name)) != MD_MAJOR) {
157 ("WARNING: physical volume \"%s\" belongs to a meta device",
160 if (MAJOR(pv[p]->pv_dev) != MD_MAJOR)
167 size_new
+= pv_size(pv
);
168 size_total
+= pv_size(pv
);
170 size_total
+= pv_pe_count(pv
) * pv_pe_size(pv
);
173 /* find maximum pv name length */
174 pv_max_name_len
= vg_max_name_len
= 0;
175 dm_list_iterate_items(pvl
, pvslist
) {
177 len
= strlen(pv_dev_name(pv
));
178 if (pv_max_name_len
< len
)
179 pv_max_name_len
= len
;
180 len
= strlen(pv_vg_name(pv
));
181 if (vg_max_name_len
< len
)
182 vg_max_name_len
= len
;
184 pv_max_name_len
+= 2;
185 vg_max_name_len
+= 2;
187 dm_list_iterate_items(pvl
, pvslist
)
188 _pvscan_display_single(cmd
, pvl
->pv
, NULL
);
191 log_print("No matching physical volumes found");
192 unlock_vg(cmd
, VG_GLOBAL
);
193 return ECMD_PROCESSED
;
196 log_print("Total: %d [%s] / in use: %d [%s] / in no VG: %d [%s]",
198 display_size(cmd
, size_total
),
199 pvs_found
- new_pvs_found
,
200 display_size(cmd
, (size_total
- size_new
)),
201 new_pvs_found
, display_size(cmd
, size_new
));
203 unlock_vg(cmd
, VG_GLOBAL
);
205 return ECMD_PROCESSED
;
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