libmeta/common/meta_resync.c

	meta_resync.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

/*
 * mirror operations
 */

#include <meta.h>
#include <sdssc.h>

/*
 * resync named device
 */
int
meta_resync_byname(
    mdsetname_t *sp,
    mdname_t    *np,
    daddr_t     size,
    md_error_t  *ep,
    md_resync_cmd_t cmd /* action to perform */
)
{
    char        *miscname;

    /* should have a set */
    assert(sp != NULL);
    assert(sp->setno == MD_MIN2SET(meta_getminor(np->dev)));

    /* get type */
    if (metachkmeta(np, ep) != 0)
        return (-1);
    if ((miscname = metagetmiscname(np, ep)) == NULL)
        return (-1);

    /* dispatch */
    if (strcmp(miscname, MD_RAID) == 0) {
        return (meta_raid_resync(sp, np, size, ep));
    } else if (strcmp(miscname, MD_MIRROR) == 0) {
        return (meta_mirror_resync(sp, np, size, ep, cmd));
    } else {
        return (mdmderror(ep, MDE_UNKNOWN_TYPE, meta_getminor(np->dev),
            np->cname));
    }
}

/*
 * resync all devices
 */
int
meta_resync_all(
    mdsetname_t *sp,
    daddr_t     size,
    md_error_t  *ep
)
{
    int     rval = 0;
    md_set_desc *sd;

    /* see if we have any databases */
    if (meta_setup_db_locations(ep) != 0) {
        if (mdismddberror(ep, MDE_DB_NODB)) {
            mdclrerror(ep);
            return (0);
        }
        rval = -1;
    }

    if (!(metaislocalset(sp))) {
        if ((sd = metaget_setdesc(sp, ep)) == NULL)
            return (-1);

        /* MN disksets don't use DCS clustering services. */
        if (!(MD_MNSET_DESC(sd)))
            sdssc_notify_service(NULL, Shutdown_Services);
    }

    /* resync units */
    if (meta_mirror_resync_all(sp, size, ep) != 0)
        rval = -1;
    if (meta_raid_resync_all(sp, size, ep) != 0)
        rval = -1;
    return (rval);
}