xref: /titanic_41/usr/src/lib/lvm/libmeta/common/meta_resync.c (revision e4b86885570d77af552e9cf94f142f4d744fb8c8)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*
30  * mirror operations
31  */
32 
33 #include <meta.h>
34 #include <sdssc.h>
35 
36 /*
37  * resync named device
38  */
39 int
40 meta_resync_byname(
41 	mdsetname_t	*sp,
42 	mdname_t	*np,
43 	daddr_t		size,
44 	md_error_t	*ep,
45 	md_resync_cmd_t	cmd	/* action to perform */
46 )
47 {
48 	char		*miscname;
49 
50 	/* should have a set */
51 	assert(sp != NULL);
52 	assert(sp->setno == MD_MIN2SET(meta_getminor(np->dev)));
53 
54 	/* get type */
55 	if (metachkmeta(np, ep) != 0)
56 		return (-1);
57 	if ((miscname = metagetmiscname(np, ep)) == NULL)
58 		return (-1);
59 
60 	/* dispatch */
61 	if (strcmp(miscname, MD_RAID) == 0) {
62 		return (meta_raid_resync(sp, np, size, ep));
63 	} else if (strcmp(miscname, MD_MIRROR) == 0) {
64 		return (meta_mirror_resync(sp, np, size, ep, cmd));
65 	} else {
66 		return (mdmderror(ep, MDE_UNKNOWN_TYPE, meta_getminor(np->dev),
67 		    np->cname));
68 	}
69 }
70 
71 /*
72  * resync all devices
73  */
74 int
75 meta_resync_all(
76 	mdsetname_t	*sp,
77 	daddr_t		size,
78 	md_error_t	*ep
79 )
80 {
81 	int		rval = 0;
82 	md_set_desc	*sd;
83 
84 	/* see if we have any databases */
85 	if (meta_setup_db_locations(ep) != 0) {
86 		if (mdismddberror(ep, MDE_DB_NODB)) {
87 			mdclrerror(ep);
88 			return (0);
89 		}
90 		rval = -1;
91 	}
92 
93 	if (!(metaislocalset(sp))) {
94 		if ((sd = metaget_setdesc(sp, ep)) == NULL)
95 			return (-1);
96 
97 		/* MN disksets don't use DCS clustering services. */
98 		if (!(MD_MNSET_DESC(sd)))
99 			sdssc_notify_service(NULL, Shutdown_Services);
100 	}
101 
102 	/* resync units */
103 	if (meta_mirror_resync_all(sp, size, ep) != 0)
104 		rval = -1;
105 	if (meta_raid_resync_all(sp, size, ep) != 0)
106 		rval = -1;
107 	return (rval);
108 }
109