1 // SPDX-License-Identifier: CDDL-1.0
2 /*
3 * This file and its contents are supplied under the terms of the
4 * Common Development and Distribution License ("CDDL"), version 1.0.
5 * You may only use this file in accordance with the terms of version
6 * 1.0 of the CDDL.
7 *
8 * A full copy of the text of the CDDL should have accompanied this
9 * source. A copy of the CDDL is also available via the Internet at
10 * https://opensource.org/license/CDDL-1.0.
11 */
12 /*
13 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
14 * Use is subject to license terms.
15 */
16
17 #include <sys/nvpair.h>
18 #include <sys/kmem.h>
19 #include <sys/vmem.h>
20
21 static void *
nv_alloc_sleep_spl(nv_alloc_t * nva,size_t size)22 nv_alloc_sleep_spl(nv_alloc_t *nva, size_t size)
23 {
24 return (vmem_alloc(size, KM_SLEEP));
25 }
26
27 static void *
nv_alloc_pushpage_spl(nv_alloc_t * nva,size_t size)28 nv_alloc_pushpage_spl(nv_alloc_t *nva, size_t size)
29 {
30 return (vmem_alloc(size, KM_PUSHPAGE));
31 }
32
33 static void *
nv_alloc_nosleep_spl(nv_alloc_t * nva,size_t size)34 nv_alloc_nosleep_spl(nv_alloc_t *nva, size_t size)
35 {
36 return (kmem_alloc(size, KM_NOSLEEP));
37 }
38
39 static void
nv_free_spl(nv_alloc_t * nva,void * buf,size_t size)40 nv_free_spl(nv_alloc_t *nva, void *buf, size_t size)
41 {
42 kmem_free(buf, size);
43 }
44
45 static const nv_alloc_ops_t spl_sleep_ops_def = {
46 .nv_ao_init = NULL,
47 .nv_ao_fini = NULL,
48 .nv_ao_alloc = nv_alloc_sleep_spl,
49 .nv_ao_free = nv_free_spl,
50 .nv_ao_reset = NULL
51 };
52
53 static const nv_alloc_ops_t spl_pushpage_ops_def = {
54 .nv_ao_init = NULL,
55 .nv_ao_fini = NULL,
56 .nv_ao_alloc = nv_alloc_pushpage_spl,
57 .nv_ao_free = nv_free_spl,
58 .nv_ao_reset = NULL
59 };
60
61 static const nv_alloc_ops_t spl_nosleep_ops_def = {
62 .nv_ao_init = NULL,
63 .nv_ao_fini = NULL,
64 .nv_ao_alloc = nv_alloc_nosleep_spl,
65 .nv_ao_free = nv_free_spl,
66 .nv_ao_reset = NULL
67 };
68
69 static nv_alloc_t nv_alloc_sleep_def = {
70 &spl_sleep_ops_def,
71 NULL
72 };
73
74 static nv_alloc_t nv_alloc_pushpage_def = {
75 &spl_pushpage_ops_def,
76 NULL
77 };
78
79 static nv_alloc_t nv_alloc_nosleep_def = {
80 &spl_nosleep_ops_def,
81 NULL
82 };
83
84 nv_alloc_t *const nv_alloc_sleep = &nv_alloc_sleep_def;
85 nv_alloc_t *const nv_alloc_pushpage = &nv_alloc_pushpage_def;
86 nv_alloc_t *const nv_alloc_nosleep = &nv_alloc_nosleep_def;
87