Merge tag 'for-linus-20160523' of git://git.infradead.org/linux-mtd
[linux-2.6-block.git] / include / linux / kmemleak.h
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1/*
2 * include/linux/kmemleak.h
3 *
4 * Copyright (C) 2008 ARM Limited
5 * Written by Catalin Marinas <catalin.marinas@arm.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21#ifndef __KMEMLEAK_H
22#define __KMEMLEAK_H
23
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24#include <linux/slab.h>
25
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26#ifdef CONFIG_DEBUG_KMEMLEAK
27
98e89cf0 28extern void kmemleak_init(void) __init;
3c7b4e6b 29extern void kmemleak_alloc(const void *ptr, size_t size, int min_count,
a6186d89 30 gfp_t gfp) __ref;
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31extern void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
32 gfp_t gfp) __ref;
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33extern void kmemleak_free(const void *ptr) __ref;
34extern void kmemleak_free_part(const void *ptr, size_t size) __ref;
f528f0b8 35extern void kmemleak_free_percpu(const void __percpu *ptr) __ref;
ffe2c748 36extern void kmemleak_update_trace(const void *ptr) __ref;
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37extern void kmemleak_not_leak(const void *ptr) __ref;
38extern void kmemleak_ignore(const void *ptr) __ref;
c017b4be 39extern void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) __ref;
a6186d89 40extern void kmemleak_no_scan(const void *ptr) __ref;
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41
42static inline void kmemleak_alloc_recursive(const void *ptr, size_t size,
43 int min_count, unsigned long flags,
44 gfp_t gfp)
45{
46 if (!(flags & SLAB_NOLEAKTRACE))
47 kmemleak_alloc(ptr, size, min_count, gfp);
48}
49
50static inline void kmemleak_free_recursive(const void *ptr, unsigned long flags)
51{
52 if (!(flags & SLAB_NOLEAKTRACE))
53 kmemleak_free(ptr);
54}
55
56static inline void kmemleak_erase(void **ptr)
57{
58 *ptr = NULL;
59}
60
61#else
62
63static inline void kmemleak_init(void)
64{
65}
66static inline void kmemleak_alloc(const void *ptr, size_t size, int min_count,
67 gfp_t gfp)
68{
69}
70static inline void kmemleak_alloc_recursive(const void *ptr, size_t size,
71 int min_count, unsigned long flags,
72 gfp_t gfp)
73{
74}
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75static inline void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
76 gfp_t gfp)
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77{
78}
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79static inline void kmemleak_free(const void *ptr)
80{
81}
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82static inline void kmemleak_free_part(const void *ptr, size_t size)
83{
84}
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85static inline void kmemleak_free_recursive(const void *ptr, unsigned long flags)
86{
87}
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88static inline void kmemleak_free_percpu(const void __percpu *ptr)
89{
90}
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91static inline void kmemleak_update_trace(const void *ptr)
92{
93}
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94static inline void kmemleak_not_leak(const void *ptr)
95{
96}
97static inline void kmemleak_ignore(const void *ptr)
98{
99}
c017b4be 100static inline void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp)
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101{
102}
103static inline void kmemleak_erase(void **ptr)
104{
105}
106static inline void kmemleak_no_scan(const void *ptr)
107{
108}
109
110#endif /* CONFIG_DEBUG_KMEMLEAK */
111
112#endif /* __KMEMLEAK_H */