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45051539 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
3c7b4e6b CM |
2 | /* |
3 | * include/linux/kmemleak.h | |
4 | * | |
5 | * Copyright (C) 2008 ARM Limited | |
6 | * Written by Catalin Marinas <catalin.marinas@arm.com> | |
3c7b4e6b CM |
7 | */ |
8 | ||
9 | #ifndef __KMEMLEAK_H | |
10 | #define __KMEMLEAK_H | |
11 | ||
66f2ca7e | 12 | #include <linux/slab.h> |
94f4a161 | 13 | #include <linux/vmalloc.h> |
66f2ca7e | 14 | |
3c7b4e6b CM |
15 | #ifdef CONFIG_DEBUG_KMEMLEAK |
16 | ||
98e89cf0 | 17 | extern void kmemleak_init(void) __init; |
3c7b4e6b | 18 | extern void kmemleak_alloc(const void *ptr, size_t size, int min_count, |
a6186d89 | 19 | gfp_t gfp) __ref; |
8a8c35fa LF |
20 | extern void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size, |
21 | gfp_t gfp) __ref; | |
94f4a161 CM |
22 | extern void kmemleak_vmalloc(const struct vm_struct *area, size_t size, |
23 | gfp_t gfp) __ref; | |
a6186d89 CM |
24 | extern void kmemleak_free(const void *ptr) __ref; |
25 | extern void kmemleak_free_part(const void *ptr, size_t size) __ref; | |
f528f0b8 | 26 | extern void kmemleak_free_percpu(const void __percpu *ptr) __ref; |
ffe2c748 | 27 | extern void kmemleak_update_trace(const void *ptr) __ref; |
a6186d89 CM |
28 | extern void kmemleak_not_leak(const void *ptr) __ref; |
29 | extern void kmemleak_ignore(const void *ptr) __ref; | |
c017b4be | 30 | extern void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) __ref; |
a6186d89 | 31 | extern void kmemleak_no_scan(const void *ptr) __ref; |
9099daed CM |
32 | extern void kmemleak_alloc_phys(phys_addr_t phys, size_t size, int min_count, |
33 | gfp_t gfp) __ref; | |
34 | extern void kmemleak_free_part_phys(phys_addr_t phys, size_t size) __ref; | |
35 | extern void kmemleak_not_leak_phys(phys_addr_t phys) __ref; | |
36 | extern void kmemleak_ignore_phys(phys_addr_t phys) __ref; | |
3c7b4e6b CM |
37 | |
38 | static inline void kmemleak_alloc_recursive(const void *ptr, size_t size, | |
d50112ed | 39 | int min_count, slab_flags_t flags, |
3c7b4e6b CM |
40 | gfp_t gfp) |
41 | { | |
42 | if (!(flags & SLAB_NOLEAKTRACE)) | |
43 | kmemleak_alloc(ptr, size, min_count, gfp); | |
44 | } | |
45 | ||
d50112ed | 46 | static inline void kmemleak_free_recursive(const void *ptr, slab_flags_t flags) |
3c7b4e6b CM |
47 | { |
48 | if (!(flags & SLAB_NOLEAKTRACE)) | |
49 | kmemleak_free(ptr); | |
50 | } | |
51 | ||
52 | static inline void kmemleak_erase(void **ptr) | |
53 | { | |
54 | *ptr = NULL; | |
55 | } | |
56 | ||
57 | #else | |
58 | ||
59 | static inline void kmemleak_init(void) | |
60 | { | |
61 | } | |
62 | static inline void kmemleak_alloc(const void *ptr, size_t size, int min_count, | |
63 | gfp_t gfp) | |
64 | { | |
65 | } | |
66 | static inline void kmemleak_alloc_recursive(const void *ptr, size_t size, | |
d50112ed | 67 | int min_count, slab_flags_t flags, |
3c7b4e6b CM |
68 | gfp_t gfp) |
69 | { | |
70 | } | |
8a8c35fa LF |
71 | static inline void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size, |
72 | gfp_t gfp) | |
f528f0b8 CM |
73 | { |
74 | } | |
94f4a161 CM |
75 | static inline void kmemleak_vmalloc(const struct vm_struct *area, size_t size, |
76 | gfp_t gfp) | |
77 | { | |
78 | } | |
3c7b4e6b CM |
79 | static inline void kmemleak_free(const void *ptr) |
80 | { | |
81 | } | |
53238a60 CM |
82 | static inline void kmemleak_free_part(const void *ptr, size_t size) |
83 | { | |
84 | } | |
d50112ed | 85 | static inline void kmemleak_free_recursive(const void *ptr, slab_flags_t flags) |
3c7b4e6b CM |
86 | { |
87 | } | |
f528f0b8 CM |
88 | static inline void kmemleak_free_percpu(const void __percpu *ptr) |
89 | { | |
90 | } | |
ffe2c748 CM |
91 | static inline void kmemleak_update_trace(const void *ptr) |
92 | { | |
93 | } | |
3c7b4e6b CM |
94 | static inline void kmemleak_not_leak(const void *ptr) |
95 | { | |
96 | } | |
97 | static inline void kmemleak_ignore(const void *ptr) | |
98 | { | |
99 | } | |
c017b4be | 100 | static inline void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) |
3c7b4e6b CM |
101 | { |
102 | } | |
103 | static inline void kmemleak_erase(void **ptr) | |
104 | { | |
105 | } | |
106 | static inline void kmemleak_no_scan(const void *ptr) | |
107 | { | |
108 | } | |
9099daed CM |
109 | static inline void kmemleak_alloc_phys(phys_addr_t phys, size_t size, |
110 | int min_count, gfp_t gfp) | |
111 | { | |
112 | } | |
113 | static inline void kmemleak_free_part_phys(phys_addr_t phys, size_t size) | |
114 | { | |
115 | } | |
116 | static inline void kmemleak_not_leak_phys(phys_addr_t phys) | |
117 | { | |
118 | } | |
119 | static inline void kmemleak_ignore_phys(phys_addr_t phys) | |
120 | { | |
121 | } | |
3c7b4e6b CM |
122 | |
123 | #endif /* CONFIG_DEBUG_KMEMLEAK */ | |
124 | ||
125 | #endif /* __KMEMLEAK_H */ |