xref: /freebsd/sys/contrib/openzfs/lib/libnvpair/nvpair_alloc_system.c (revision 61145dc2b94f12f6a47344fb9aac702321880e43)
1 // SPDX-License-Identifier: CDDL-1.0
2 /*
3  * CDDL HEADER START
4  *
5  * The contents of this file are subject to the terms of the
6  * Common Development and Distribution License, Version 1.0 only
7  * (the "License").  You may not use this file except in compliance
8  * with the License.
9  *
10  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
11  * or https://opensource.org/licenses/CDDL-1.0.
12  * See the License for the specific language governing permissions
13  * and limitations under the License.
14  *
15  * When distributing Covered Code, include this CDDL HEADER in each
16  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
17  * If applicable, add the following below this CDDL HEADER, with the
18  * fields enclosed by brackets "[]" replaced with your own identifying
19  * information: Portions Copyright [yyyy] [name of copyright owner]
20  *
21  * CDDL HEADER END
22  */
23 /*
24  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
25  * Use is subject to license terms.
26  */
27 
28 
29 
30 #include <rpc/types.h>
31 #include <sys/kmem.h>
32 #include <sys/nvpair.h>
33 
34 static void *
nv_alloc_sys(nv_alloc_t * nva,size_t size)35 nv_alloc_sys(nv_alloc_t *nva, size_t size)
36 {
37 	return (kmem_alloc(size, (int)(uintptr_t)nva->nva_arg));
38 }
39 
40 static void
nv_free_sys(nv_alloc_t * nva,void * buf,size_t size)41 nv_free_sys(nv_alloc_t *nva, void *buf, size_t size)
42 {
43 	(void) nva;
44 	kmem_free(buf, size);
45 }
46 
47 static const nv_alloc_ops_t system_ops = {
48 	NULL,			/* nv_ao_init() */
49 	NULL,			/* nv_ao_fini() */
50 	nv_alloc_sys,		/* nv_ao_alloc() */
51 	nv_free_sys,		/* nv_ao_free() */
52 	NULL			/* nv_ao_reset() */
53 };
54 
55 static nv_alloc_t nv_alloc_sleep_def = {
56 	&system_ops,
57 	(void *)KM_SLEEP
58 };
59 
60 static nv_alloc_t nv_alloc_nosleep_def = {
61 	&system_ops,
62 	(void *)KM_NOSLEEP
63 };
64 
65 nv_alloc_t *const nv_alloc_sleep = &nv_alloc_sleep_def;
66 nv_alloc_t *const nv_alloc_nosleep = &nv_alloc_nosleep_def;
67