1*4745263aSmw145384 /* 2*4745263aSmw145384 * CDDL HEADER START 3*4745263aSmw145384 * 4*4745263aSmw145384 * The contents of this file are subject to the terms of the 5*4745263aSmw145384 * Common Development and Distribution License, Version 1.0 only 6*4745263aSmw145384 * (the "License"). You may not use this file except in compliance 7*4745263aSmw145384 * with the License. 8*4745263aSmw145384 * 9*4745263aSmw145384 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*4745263aSmw145384 * or http://www.opensolaris.org/os/licensing. 11*4745263aSmw145384 * See the License for the specific language governing permissions 12*4745263aSmw145384 * and limitations under the License. 13*4745263aSmw145384 * 14*4745263aSmw145384 * When distributing Covered Code, include this CDDL HEADER in each 15*4745263aSmw145384 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*4745263aSmw145384 * If applicable, add the following below this CDDL HEADER, with the 17*4745263aSmw145384 * fields enclosed by brackets "[]" replaced with your own identifying 18*4745263aSmw145384 * information: Portions Copyright [yyyy] [name of copyright owner] 19*4745263aSmw145384 * 20*4745263aSmw145384 * CDDL HEADER END 21*4745263aSmw145384 */ 22*4745263aSmw145384 /* 23*4745263aSmw145384 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*4745263aSmw145384 * Use is subject to license terms. 25*4745263aSmw145384 */ 26*4745263aSmw145384 27*4745263aSmw145384 #pragma ident "%Z%%M% %I% %E% SMI" 28*4745263aSmw145384 29*4745263aSmw145384 #include <sys/types.h> 30*4745263aSmw145384 /* 31*4745263aSmw145384 * Need to include md_mddb.h for the MDDB_REV_MAJOR and MDDB_REV_MINOR 32*4745263aSmw145384 * definitions. The other files included are required for md_mddb.h. 33*4745263aSmw145384 */ 34*4745263aSmw145384 #ifdef _KERNEL 35*4745263aSmw145384 #include <sys/lvm/md_basic.h> 36*4745263aSmw145384 #include <sys/lvm/mdvar.h> 37*4745263aSmw145384 #else /* !_KERNEL */ 38*4745263aSmw145384 #include <meta.h> 39*4745263aSmw145384 #endif /* _KERNEL */ 40*4745263aSmw145384 #include <sys/lvm/md_mddb.h> 41*4745263aSmw145384 42*4745263aSmw145384 43*4745263aSmw145384 /* 44*4745263aSmw145384 * revchk() 45*4745263aSmw145384 * Checks the major and minor revision numbers for either an in-core or on-disk 46*4745263aSmw145384 * directory block or record block against the currently defined major and 47*4745263aSmw145384 * minor numbers(MDDB_REV_MAJOR and MDDB_REV_MINOR) to make sure that they are 48*4745263aSmw145384 * compatible with this version of SVM. For example, earlier versions of SVM 49*4745263aSmw145384 * don't understand dummy masterblocks or deviceIDs in disksets. 50*4745263aSmw145384 */ 51*4745263aSmw145384 int revchk(uint_t my_rev,uint_t data)52*4745263aSmw145384revchk( 53*4745263aSmw145384 uint_t my_rev, 54*4745263aSmw145384 uint_t data 55*4745263aSmw145384 ) 56*4745263aSmw145384 { 57*4745263aSmw145384 if ((MDDB_REV_MAJOR & my_rev) != (MDDB_REV_MAJOR & data)) 58*4745263aSmw145384 return (1); 59*4745263aSmw145384 if ((MDDB_REV_MINOR & my_rev) < (MDDB_REV_MINOR & data)) 60*4745263aSmw145384 return (1); 61*4745263aSmw145384 return (0); 62*4745263aSmw145384 } 63