module/nvpair/nvpair_alloc_spl.c

   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 *
  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 *
  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 *
  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
  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;