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
26 #ifdef CONFIG_DEBUG_KMEMLEAK
27
28 extern void kmemleak_init(void) __ref;
29 extern void kmemleak_alloc(const void *ptr, size_t size, int min_count,
30 gfp_t gfp) __ref;
31 extern void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
32 gfp_t gfp) __ref;
33 extern void kmemleak_free(const void *ptr) __ref;
34 extern void kmemleak_free_part(const void *ptr, size_t size) __ref;
35 extern void kmemleak_free_percpu(const void __percpu *ptr) __ref;
36 extern void kmemleak_update_trace(const void *ptr) __ref;
37 extern void kmemleak_not_leak(const void *ptr) __ref;
38 extern void kmemleak_ignore(const void *ptr) __ref;
39 extern void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) __ref;
40 extern void kmemleak_no_scan(const void *ptr) __ref;
41
kmemleak_alloc_recursive(const void * ptr,size_t size,int min_count,unsigned long flags,gfp_t gfp)42 static 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
kmemleak_free_recursive(const void * ptr,unsigned long flags)50 static inline void kmemleak_free_recursive(const void *ptr, unsigned long flags)
51 {
52 if (!(flags & SLAB_NOLEAKTRACE))
53 kmemleak_free(ptr);
54 }
55
kmemleak_erase(void ** ptr)56 static inline void kmemleak_erase(void **ptr)
57 {
58 *ptr = NULL;
59 }
60
61 #else
62
kmemleak_init(void)63 static inline void kmemleak_init(void)
64 {
65 }
kmemleak_alloc(const void * ptr,size_t size,int min_count,gfp_t gfp)66 static inline void kmemleak_alloc(const void *ptr, size_t size, int min_count,
67 gfp_t gfp)
68 {
69 }
kmemleak_alloc_recursive(const void * ptr,size_t size,int min_count,unsigned long flags,gfp_t gfp)70 static inline void kmemleak_alloc_recursive(const void *ptr, size_t size,
71 int min_count, unsigned long flags,
72 gfp_t gfp)
73 {
74 }
kmemleak_alloc_percpu(const void __percpu * ptr,size_t size,gfp_t gfp)75 static inline void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
76 gfp_t gfp)
77 {
78 }
kmemleak_free(const void * ptr)79 static inline void kmemleak_free(const void *ptr)
80 {
81 }
kmemleak_free_part(const void * ptr,size_t size)82 static inline void kmemleak_free_part(const void *ptr, size_t size)
83 {
84 }
kmemleak_free_recursive(const void * ptr,unsigned long flags)85 static inline void kmemleak_free_recursive(const void *ptr, unsigned long flags)
86 {
87 }
kmemleak_free_percpu(const void __percpu * ptr)88 static inline void kmemleak_free_percpu(const void __percpu *ptr)
89 {
90 }
kmemleak_update_trace(const void * ptr)91 static inline void kmemleak_update_trace(const void *ptr)
92 {
93 }
kmemleak_not_leak(const void * ptr)94 static inline void kmemleak_not_leak(const void *ptr)
95 {
96 }
kmemleak_ignore(const void * ptr)97 static inline void kmemleak_ignore(const void *ptr)
98 {
99 }
kmemleak_scan_area(const void * ptr,size_t size,gfp_t gfp)100 static inline void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp)
101 {
102 }
kmemleak_erase(void ** ptr)103 static inline void kmemleak_erase(void **ptr)
104 {
105 }
kmemleak_no_scan(const void * ptr)106 static inline void kmemleak_no_scan(const void *ptr)
107 {
108 }
109
110 #endif /* CONFIG_DEBUG_KMEMLEAK */
111
112 #endif /* __KMEMLEAK_H */
113