xref: /freebsd/sys/contrib/openzfs/lib/libnvpair/nvpair_alloc_system.c (revision 59c8e88e72633afbc47a4ace0d2170d00d51f7dc)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or https://opensource.org/licenses/CDDL-1.0.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 
28 
29 #include <rpc/types.h>
30 #include <sys/kmem.h>
31 #include <sys/nvpair.h>
32 
33 static void *
34 nv_alloc_sys(nv_alloc_t *nva, size_t size)
35 {
36 	return (kmem_alloc(size, (int)(uintptr_t)nva->nva_arg));
37 }
38 
39 static void
40 nv_free_sys(nv_alloc_t *nva, void *buf, size_t size)
41 {
42 	(void) nva;
43 	kmem_free(buf, size);
44 }
45 
46 static const nv_alloc_ops_t system_ops = {
47 	NULL,			/* nv_ao_init() */
48 	NULL,			/* nv_ao_fini() */
49 	nv_alloc_sys,		/* nv_ao_alloc() */
50 	nv_free_sys,		/* nv_ao_free() */
51 	NULL			/* nv_ao_reset() */
52 };
53 
54 static nv_alloc_t nv_alloc_sleep_def = {
55 	&system_ops,
56 	(void *)KM_SLEEP
57 };
58 
59 static nv_alloc_t nv_alloc_nosleep_def = {
60 	&system_ops,
61 	(void *)KM_NOSLEEP
62 };
63 
64 nv_alloc_t *const nv_alloc_sleep = &nv_alloc_sleep_def;
65 nv_alloc_t *const nv_alloc_nosleep = &nv_alloc_nosleep_def;
66