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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* attach operations
*/
#include <meta.h>
/*
* grow generic device
*/
int
meta_concat_generic(
mdsetname_t *sp,
mdname_t *namep,
u_longlong_t big_or_little,
md_error_t *ep
)
{
md_grow_params_t mgp;
char *miscname;
/* should have a set */
assert(sp != NULL);
assert(sp->setno == MD_MIN2SET(meta_getminor(namep->dev)));
/* get type */
if ((miscname = metagetmiscname(namep, ep)) == NULL)
return (-1);
/* grow device */
(void) memset(&mgp, 0, sizeof (mgp));
if (big_or_little & MD_64BIT_META_DEV)
mgp.options = MD_CRO_64BIT;
else
mgp.options = MD_CRO_32BIT;
mgp.mnum = meta_getminor(namep->dev);
MD_SETDRIVERNAME(&mgp, miscname, sp->setno);
if (metaioctl(MD_IOCGROW, &mgp, &mgp.mde, namep->cname) != 0)
return (mdstealerror(ep, &mgp.mde));
/* clear cache */
meta_invalidate_name(namep);
/* return success */
return (0);
}
/*
* grow the parent of a device
*/
int
meta_concat_parent(
mdsetname_t *sp,
mdname_t *childnp,
md_error_t *ep
)
{
md_common_t *mdp;
mdname_t *parentnp;
md_unit_t *mup;
/* should have a set */
assert(sp != NULL);
assert(sp->setno == MD_MIN2SET(meta_getminor(childnp->dev)));
/* get parent */
if ((mdp = meta_get_unit(sp, childnp, ep)) == NULL)
return (-1);
if (! MD_HAS_PARENT(mdp->parent))
return (0);
if (mdp->parent == MD_MULTI_PARENT)
return (0);
/* single parent */
if ((parentnp = metamnumname(&sp, mdp->parent, 0, ep)) == NULL)
return (-1);
/* don't grow non-metadevices or soft partitions */
if (! metaismeta(parentnp) || meta_sp_issp(sp, parentnp, ep) == 0)
return (0);
if ((mup = meta_get_mdunit(sp, childnp, ep)) == NULL)
return (-1);
/* grow parent */
if (meta_concat_generic(sp, parentnp, mup->c.un_revision, ep) != 0)
return (-1);
/* recursively check for parents of parents */
return (meta_concat_parent(sp, parentnp, ep));
}
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