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Catalin Marinas3c7b4e62009-06-11 13:22:39 +01001/*
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
24#ifdef CONFIG_DEBUG_KMEMLEAK
25
26extern void kmemleak_init(void);
27extern void kmemleak_alloc(const void *ptr, size_t size, int min_count,
28 gfp_t gfp);
29extern void kmemleak_free(const void *ptr);
30extern void kmemleak_padding(const void *ptr, unsigned long offset,
31 size_t size);
32extern void kmemleak_not_leak(const void *ptr);
33extern void kmemleak_ignore(const void *ptr);
34extern void kmemleak_scan_area(const void *ptr, unsigned long offset,
35 size_t length, gfp_t gfp);
36extern void kmemleak_no_scan(const void *ptr);
37
38static inline void kmemleak_alloc_recursive(const void *ptr, size_t size,
39 int min_count, unsigned long flags,
40 gfp_t gfp)
41{
42 if (!(flags & SLAB_NOLEAKTRACE))
43 kmemleak_alloc(ptr, size, min_count, gfp);
44}
45
46static inline void kmemleak_free_recursive(const void *ptr, unsigned long flags)
47{
48 if (!(flags & SLAB_NOLEAKTRACE))
49 kmemleak_free(ptr);
50}
51
52static inline void kmemleak_erase(void **ptr)
53{
54 *ptr = NULL;
55}
56
57#else
58
59static inline void kmemleak_init(void)
60{
61}
62static inline void kmemleak_alloc(const void *ptr, size_t size, int min_count,
63 gfp_t gfp)
64{
65}
66static inline void kmemleak_alloc_recursive(const void *ptr, size_t size,
67 int min_count, unsigned long flags,
68 gfp_t gfp)
69{
70}
71static inline void kmemleak_free(const void *ptr)
72{
73}
74static inline void kmemleak_free_recursive(const void *ptr, unsigned long flags)
75{
76}
77static inline void kmemleak_not_leak(const void *ptr)
78{
79}
80static inline void kmemleak_ignore(const void *ptr)
81{
82}
83static inline void kmemleak_scan_area(const void *ptr, unsigned long offset,
84 size_t length, gfp_t gfp)
85{
86}
87static inline void kmemleak_erase(void **ptr)
88{
89}
90static inline void kmemleak_no_scan(const void *ptr)
91{
92}
93
94#endif /* CONFIG_DEBUG_KMEMLEAK */
95
96#endif /* __KMEMLEAK_H */