xref: /freebsd/sys/contrib/openzfs/module/os/linux/spl/spl-vmem.c (revision a18b956b73cee784e5c422d20fd0e4dabebd7eee)
1 /*
2  *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
3  *  Copyright (C) 2007 The Regents of the University of California.
4  *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
5  *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
6  *  UCRL-CODE-235197
7  *
8  *  This file is part of the SPL, Solaris Porting Layer.
9  *
10  *  The SPL is free software; you can redistribute it and/or modify it
11  *  under the terms of the GNU General Public License as published by the
12  *  Free Software Foundation; either version 2 of the License, or (at your
13  *  option) any later version.
14  *
15  *  The SPL is distributed in the hope that it will be useful, but WITHOUT
16  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
18  *  for more details.
19  *
20  *  You should have received a copy of the GNU General Public License along
21  *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
22  */
23 
24 #include <linux/percpu_compat.h>
25 #include <sys/debug.h>
26 #include <sys/vmem.h>
27 #include <sys/kmem_cache.h>
28 #include <sys/shrinker.h>
29 #include <linux/module.h>
30 
31 /*
32  * Public vmem_alloc(), vmem_zalloc() and vmem_free() interfaces.
33  */
34 void *
35 spl_vmem_alloc(size_t size, int flags, const char *func, int line)
36 {
37 	ASSERT0(flags & ~KM_PUBLIC_MASK);
38 
39 	flags |= KM_VMEM;
40 
41 #if !defined(DEBUG_KMEM)
42 	return (spl_kmem_alloc_impl(size, flags, NUMA_NO_NODE));
43 #elif !defined(DEBUG_KMEM_TRACKING)
44 	return (spl_kmem_alloc_debug(size, flags, NUMA_NO_NODE));
45 #else
46 	return (spl_kmem_alloc_track(size, flags, func, line, NUMA_NO_NODE));
47 #endif
48 }
49 EXPORT_SYMBOL(spl_vmem_alloc);
50 
51 void *
52 spl_vmem_zalloc(size_t size, int flags, const char *func, int line)
53 {
54 	ASSERT0(flags & ~KM_PUBLIC_MASK);
55 
56 	flags |= (KM_VMEM | KM_ZERO);
57 
58 #if !defined(DEBUG_KMEM)
59 	return (spl_kmem_alloc_impl(size, flags, NUMA_NO_NODE));
60 #elif !defined(DEBUG_KMEM_TRACKING)
61 	return (spl_kmem_alloc_debug(size, flags, NUMA_NO_NODE));
62 #else
63 	return (spl_kmem_alloc_track(size, flags, func, line, NUMA_NO_NODE));
64 #endif
65 }
66 EXPORT_SYMBOL(spl_vmem_zalloc);
67 
68 void
69 spl_vmem_free(const void *buf, size_t size)
70 {
71 #if !defined(DEBUG_KMEM)
72 	return (spl_kmem_free_impl(buf, size));
73 #elif !defined(DEBUG_KMEM_TRACKING)
74 	return (spl_kmem_free_debug(buf, size));
75 #else
76 	return (spl_kmem_free_track(buf, size));
77 #endif
78 }
79 EXPORT_SYMBOL(spl_vmem_free);
80 
81 int
82 spl_vmem_init(void)
83 {
84 	return (0);
85 }
86 
87 void
88 spl_vmem_fini(void)
89 {
90 }
91