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 #include <sys/nvpair.h>
28 #include <sys/kmem.h>
29 #include <sys/vmem.h>
30
31 static void *
nv_alloc_sleep_spl(nv_alloc_t * nva,size_t size)32 nv_alloc_sleep_spl(nv_alloc_t *nva, size_t size)
33 {
34 return (vmem_alloc(size, KM_SLEEP));
35 }
36
37 static void *
nv_alloc_pushpage_spl(nv_alloc_t * nva,size_t size)38 nv_alloc_pushpage_spl(nv_alloc_t *nva, size_t size)
39 {
40 return (vmem_alloc(size, KM_PUSHPAGE));
41 }
42
43 static void *
nv_alloc_nosleep_spl(nv_alloc_t * nva,size_t size)44 nv_alloc_nosleep_spl(nv_alloc_t *nva, size_t size)
45 {
46 return (kmem_alloc(size, KM_NOSLEEP));
47 }
48
49 static void
nv_free_spl(nv_alloc_t * nva,void * buf,size_t size)50 nv_free_spl(nv_alloc_t *nva, void *buf, size_t size)
51 {
52 kmem_free(buf, size);
53 }
54
55 static const nv_alloc_ops_t spl_sleep_ops_def = {
56 .nv_ao_init = NULL,
57 .nv_ao_fini = NULL,
58 .nv_ao_alloc = nv_alloc_sleep_spl,
59 .nv_ao_free = nv_free_spl,
60 .nv_ao_reset = NULL
61 };
62
63 static const nv_alloc_ops_t spl_pushpage_ops_def = {
64 .nv_ao_init = NULL,
65 .nv_ao_fini = NULL,
66 .nv_ao_alloc = nv_alloc_pushpage_spl,
67 .nv_ao_free = nv_free_spl,
68 .nv_ao_reset = NULL
69 };
70
71 static const nv_alloc_ops_t spl_nosleep_ops_def = {
72 .nv_ao_init = NULL,
73 .nv_ao_fini = NULL,
74 .nv_ao_alloc = nv_alloc_nosleep_spl,
75 .nv_ao_free = nv_free_spl,
76 .nv_ao_reset = NULL
77 };
78
79 static nv_alloc_t nv_alloc_sleep_def = {
80 &spl_sleep_ops_def,
81 NULL
82 };
83
84 static nv_alloc_t nv_alloc_pushpage_def = {
85 &spl_pushpage_ops_def,
86 NULL
87 };
88
89 static nv_alloc_t nv_alloc_nosleep_def = {
90 &spl_nosleep_ops_def,
91 NULL
92 };
93
94 nv_alloc_t *const nv_alloc_sleep = &nv_alloc_sleep_def;
95 nv_alloc_t *const nv_alloc_pushpage = &nv_alloc_pushpage_def;
96 nv_alloc_t *const nv_alloc_nosleep = &nv_alloc_nosleep_def;
97