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.
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.
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]
23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
27 #pragma ident "%Z%%M% %I% %E% SMI"
29 #include "vmem_base.h"
30 #include "umem_base.h"
32 uint_t vmem_backend = 0;
35 vmem_heap_arena(vmem_alloc_t **allocp, vmem_free_t **freep)
37 static mutex_t arena_mutex = DEFAULTMUTEX;
40 * Allow the init thread through, block others until the init completes
42 if (umem_ready != UMEM_READY && umem_init_thr != thr_self() &&
46 (void) mutex_lock(&arena_mutex);
47 if (vmem_heap == NULL)
49 (void) mutex_unlock(&arena_mutex);
52 *allocp = vmem_heap_alloc;
54 *freep = vmem_heap_free;