Home | History | Annotate | Download | only in zfs
      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 (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 /*
     22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     27 
     28 /*
     29  * This file is intended for functions that ought to be common between user
     30  * land (libzfs) and the kernel. When many common routines need to be shared
     31  * then a separate file should to be created.
     32  */
     33 
     34 #if defined(_KERNEL)
     35 #include <sys/systm.h>
     36 #endif
     37 
     38 #include <sys/types.h>
     39 #include <sys/fs/zfs.h>
     40 #include <sys/nvpair.h>
     41 
     42 /*
     43  * Are there allocatable vdevs?
     44  */
     45 boolean_t
     46 zfs_allocatable_devs(nvlist_t *nv)
     47 {
     48 	uint64_t is_log;
     49 	uint_t c;
     50 	nvlist_t **child;
     51 	uint_t children;
     52 
     53 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
     54 	    &child, &children) != 0) {
     55 		return (B_FALSE);
     56 	}
     57 	for (c = 0; c < children; c++) {
     58 		is_log = 0;
     59 		(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
     60 		    &is_log);
     61 		if (!is_log)
     62 			return (B_TRUE);
     63 	}
     64 	return (B_FALSE);
     65 }
     66