1 /* $NetBSD: lvscan.c,v 1.1.1.3 2009/12/02 00:25:53 haad Exp $ */
2
3 /*
4 * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
5 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
6 *
7 * This file is part of LVM2.
8 *
9 * This copyrighted material is made available to anyone wishing to use,
10 * modify, copy, or redistribute it subject to the terms and conditions
11 * of the GNU Lesser General Public License v.2.1.
12 *
13 * You should have received a copy of the GNU Lesser General Public License
14 * along with this program; if not, write to the Free Software Foundation,
15 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 */
17
18 #include "tools.h"
19
lvscan_single(struct cmd_context * cmd,struct logical_volume * lv,void * handle __attribute ((unused)))20 static int lvscan_single(struct cmd_context *cmd, struct logical_volume *lv,
21 void *handle __attribute((unused)))
22 {
23 struct lvinfo info;
24 int lv_total = 0;
25 uint64_t lv_capacity_total = 0;
26 int inkernel, snap_active = 1;
27 struct lv_segment *snap_seg = NULL;
28 float snap_percent; /* fused, fsize; */
29 percent_range_t percent_range;
30
31 const char *active_str, *snapshot_str;
32
33 if (!arg_count(cmd, all_ARG) && !lv_is_visible(lv))
34 return ECMD_PROCESSED;
35
36 inkernel = lv_info(cmd, lv, &info, 1, 0) && info.exists;
37 if (lv_is_origin(lv)) {
38 dm_list_iterate_items_gen(snap_seg, &lv->snapshot_segs,
39 origin_list) {
40 if (inkernel &&
41 (snap_active = lv_snapshot_percent(snap_seg->cow,
42 &snap_percent,
43 &percent_range)))
44 if (percent_range == PERCENT_INVALID)
45 snap_active = 0;
46 }
47 snap_seg = NULL;
48 } else if (lv_is_cow(lv)) {
49 if (inkernel &&
50 (snap_active = lv_snapshot_percent(lv, &snap_percent,
51 &percent_range)))
52 if (percent_range == PERCENT_INVALID)
53 snap_active = 0;
54 }
55
56 /* FIXME Add -D arg to skip this! */
57 if (inkernel && snap_active)
58 active_str = "ACTIVE ";
59 else
60 active_str = "inactive ";
61
62 if (lv_is_origin(lv))
63 snapshot_str = "Original";
64 else if (lv_is_cow(lv))
65 snapshot_str = "Snapshot";
66 else
67 snapshot_str = " ";
68
69 log_print("%s%s '%s%s/%s' [%s] %s", active_str, snapshot_str,
70 cmd->dev_dir, lv->vg->name, lv->name,
71 display_size(cmd, lv->size),
72 get_alloc_string(lv->alloc));
73
74 lv_total++;
75
76 lv_capacity_total += lv->size;
77
78 return ECMD_PROCESSED;
79 }
80
lvscan(struct cmd_context * cmd,int argc,char ** argv)81 int lvscan(struct cmd_context *cmd, int argc, char **argv)
82 {
83 if (argc) {
84 log_error("No additional command line arguments allowed");
85 return EINVALID_CMD_LINE;
86 }
87
88 return process_each_lv(cmd, argc, argv, 0, NULL,
89 &lvscan_single);
90 }
91