1 /* $NetBSD: filter-md.c,v 1.1.1.1 2008/12/22 00:17:58 haad Exp $ */
2
3 /*
4 * Copyright (C) 2004 Luca Berra
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 "lib.h"
19 #include "filter-md.h"
20 #include "metadata.h"
21
22 #ifdef linux
23
_ignore_md(struct dev_filter * f __attribute ((unused)),struct device * dev)24 static int _ignore_md(struct dev_filter *f __attribute((unused)),
25 struct device *dev)
26 {
27 int ret;
28
29 if (!md_filtering())
30 return 1;
31
32 ret = dev_is_md(dev, NULL);
33
34 if (ret == 1) {
35 log_debug("%s: Skipping md component device", dev_name(dev));
36 return 0;
37 }
38
39 if (ret < 0) {
40 log_debug("%s: Skipping: error in md component detection",
41 dev_name(dev));
42 return 0;
43 }
44
45 return 1;
46 }
47
_destroy(struct dev_filter * f)48 static void _destroy(struct dev_filter *f)
49 {
50 dm_free(f);
51 }
52
md_filter_create(void)53 struct dev_filter *md_filter_create(void)
54 {
55 struct dev_filter *f;
56
57 if (!(f = dm_malloc(sizeof(*f)))) {
58 log_error("md filter allocation failed");
59 return NULL;
60 }
61
62 f->passes_filter = _ignore_md;
63 f->destroy = _destroy;
64 f->private = NULL;
65
66 return f;
67 }
68
69 #else
70
md_filter_create(void)71 struct dev_filter *md_filter_create(void)
72 {
73 return NULL;
74 }
75
76 #endif
77