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
24#include <linux/slab.h>
25#include <linux/vmalloc.h>
26
27#ifdef CONFIG_DEBUG_KMEMLEAK
28
29extern void kmemleak_init(void) __init;
30extern void kmemleak_alloc(const void *ptr, size_t size, int min_count,
31 gfp_t gfp) __ref;
32extern void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
33 gfp_t gfp) __ref;
34extern void kmemleak_vmalloc(const struct vm_struct *area, size_t size,
35 gfp_t gfp) __ref;
36extern void kmemleak_free(const void *ptr) __ref;
37extern void kmemleak_free_part(const void *ptr, size_t size) __ref;
38extern void kmemleak_free_percpu(const void __percpu *ptr) __ref;
39extern void kmemleak_update_trace(const void *ptr) __ref;
40extern void kmemleak_not_leak(const void *ptr) __ref;
41extern void kmemleak_ignore(const void *ptr) __ref;
42extern void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) __ref;
43extern void kmemleak_no_scan(const void *ptr) __ref;
44extern void kmemleak_alloc_phys(phys_addr_t phys, size_t size, int min_count,
45 gfp_t gfp) __ref;
46extern void kmemleak_free_part_phys(phys_addr_t phys, size_t size) __ref;
47extern void kmemleak_not_leak_phys(phys_addr_t phys) __ref;
48extern void kmemleak_ignore_phys(phys_addr_t phys) __ref;
49
50static inline void kmemleak_alloc_recursive(const void *ptr, size_t size,
51 int min_count, slab_flags_t flags,
52 gfp_t gfp)
53{
54 if (!(flags & SLAB_NOLEAKTRACE))
55 kmemleak_alloc(ptr, size, min_count, gfp);
56}
57
58static inline void kmemleak_free_recursive(const void *ptr, slab_flags_t flags)
59{
60 if (!(flags & SLAB_NOLEAKTRACE))
61 kmemleak_free(ptr);
62}
63
64static inline void kmemleak_erase(void **ptr)
65{
66 *ptr = NULL;
67}
68
69#else
70
71static inline void kmemleak_init(void)
72{
73}
74static inline void kmemleak_alloc(const void *ptr, size_t size, int min_count,
75 gfp_t gfp)
76{
77}
78static inline void kmemleak_alloc_recursive(const void *ptr, size_t size,
79 int min_count, slab_flags_t flags,
80 gfp_t gfp)
81{
82}
83static inline void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
84 gfp_t gfp)
85{
86}
87static inline void kmemleak_vmalloc(const struct vm_struct *area, size_t size,
88 gfp_t gfp)
89{
90}
91static inline void kmemleak_free(const void *ptr)
92{
93}
94static inline void kmemleak_free_part(const void *ptr, size_t size)
95{
96}
97static inline void kmemleak_free_recursive(const void *ptr, slab_flags_t flags)
98{
99}
100static inline void kmemleak_free_percpu(const void __percpu *ptr)
101{
102}
103static inline void kmemleak_update_trace(const void *ptr)
104{
105}
106static inline void kmemleak_not_leak(const void *ptr)
107{
108}
109static inline void kmemleak_ignore(const void *ptr)
110{
111}
112static inline void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp)
113{
114}
115static inline void kmemleak_erase(void **ptr)
116{
117}
118static inline void kmemleak_no_scan(const void *ptr)
119{
120}
121static inline void kmemleak_alloc_phys(phys_addr_t phys, size_t size,
122 int min_count, gfp_t gfp)
123{
124}
125static inline void kmemleak_free_part_phys(phys_addr_t phys, size_t size)
126{
127}
128static inline void kmemleak_not_leak_phys(phys_addr_t phys)
129{
130}
131static inline void kmemleak_ignore_phys(phys_addr_t phys)
132{
133}
134
135#endif /* CONFIG_DEBUG_KMEMLEAK */
136
137#endif /* __KMEMLEAK_H */
138