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 1994-2002 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 * raid operations 31 */ 32 33#include <meta.h> 34#include <sys/lvm/md_mirror.h> 35 36/* 37 * resync raid 38 */ 39int 40meta_raid_resync( 41 mdsetname_t *sp, 42 mdname_t *raidnp, 43 daddr_t size, 44 md_error_t *ep 45) 46{ 47 char *miscname; 48 md_resync_ioctl_t ri; 49 50 /* should have a set */ 51 assert(sp != NULL); 52 assert(sp->setno == MD_MIN2SET(meta_getminor(raidnp->dev))); 53 54 /* make sure we have a raid */ 55 if ((miscname = metagetmiscname(raidnp, ep)) == NULL) 56 return (-1); 57 if (strcmp(miscname, MD_RAID) != 0) { 58 return (mdmderror(ep, MDE_NOT_RAID, meta_getminor(raidnp->dev), 59 raidnp->cname)); 60 } 61 62 /* start resync */ 63 (void) memset(&ri, 0, sizeof (ri)); 64 MD_SETDRIVERNAME(&ri, MD_RAID, sp->setno); 65 ri.ri_mnum = meta_getminor(raidnp->dev); 66 ri.ri_copysize = size; 67 if (metaioctl(MD_IOCSETSYNC, &ri, &ri.mde, raidnp->cname) != 0) 68 return (mdstealerror(ep, &ri.mde)); 69 70 /* return success */ 71 return (0); 72} 73 74/* 75 * NAME: meta_raid_resync_all 76 * DESCRIPTION: loop through the RAID devices synch'ing all 77 * PARAMETERS: char *sp - the set to synch 78 * daddr_t size - resync size 79 * md_error_t *ep - return error info 80 * 81 */ 82int 83meta_raid_resync_all( 84 mdsetname_t *sp, 85 daddr_t size, 86 md_error_t *ep 87) 88{ 89 mdnamelist_t *nlp = NULL; 90 mdnamelist_t *p; 91 int rval = 0, fval; 92 93 /* should have a set */ 94 assert(sp != NULL); 95 96 /* get raids */ 97 if (meta_get_raid_names(sp, &nlp, 0, ep) < 0) 98 return (-1); 99 100 /* fork a process */ 101 if ((fval = md_daemonize(sp, ep)) != 0) { 102 /* 103 * md_daemonize forks off a process to do the work. This 104 * is the parent or errror. 105 */ 106 if (fval > 0) { 107 if (nlp != NULL) 108 metafreenamelist(nlp); 109 return (0); 110 } 111 mdclrerror(ep); 112 } 113 114 assert((fval == 0) || (fval == -1)); 115 116 /* resync each raid */ 117 for (p = nlp; (p != NULL); p = p->next) { 118 mdname_t *raidnp = p->namep; 119 120 if (meta_raid_resync(sp, raidnp, size, ep) != 0) 121 rval = -1; 122 } 123 124 /* cleanup, return success */ 125 if (nlp != NULL) 126 metafreenamelist(nlp); 127 if (fval == 0) 128 exit(0); 129 return (rval); 130} 131