/*
* 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 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
/*
* Need to include md_mddb.h for the MDDB_REV_MAJOR and MDDB_REV_MINOR
* definitions. The other files included are required for md_mddb.h.
*/
#ifdef _KERNEL
#include <sys/lvm/md_basic.h>
#include <sys/lvm/mdvar.h>
#else /* !_KERNEL */
#include <meta.h>
#endif /* _KERNEL */
#include <sys/lvm/md_mddb.h>
/*
* revchk()
* Checks the major and minor revision numbers for either an in-core or on-disk
* directory block or record block against the currently defined major and
* minor numbers(MDDB_REV_MAJOR and MDDB_REV_MINOR) to make sure that they are
* compatible with this version of SVM. For example, earlier versions of SVM
* don't understand dummy masterblocks or deviceIDs in disksets.
*/
int
revchk(
uint_t my_rev,
uint_t data
)
{
if ((MDDB_REV_MAJOR & my_rev) != (MDDB_REV_MAJOR & data))
return (1);
if ((MDDB_REV_MINOR & my_rev) < (MDDB_REV_MINOR & data))
return (1);
return (0);
}