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1 | /* |
2 | * Copyright (C) 2008 Eduard - Gabriel Munteanu | |
3 | * | |
4 | * This file is released under GPL version 2. | |
5 | */ | |
6 | ||
7 | #ifndef _LINUX_KMEMTRACE_H | |
8 | #define _LINUX_KMEMTRACE_H | |
9 | ||
10 | #ifdef __KERNEL__ | |
11 | ||
12 | #include <linux/types.h> | |
13 | #include <linux/marker.h> | |
14 | ||
15 | enum kmemtrace_type_id { | |
16 | KMEMTRACE_TYPE_KMALLOC = 0, /* kmalloc() or kfree(). */ | |
17 | KMEMTRACE_TYPE_CACHE, /* kmem_cache_*(). */ | |
18 | KMEMTRACE_TYPE_PAGES, /* __get_free_pages() and friends. */ | |
19 | }; | |
20 | ||
21 | #ifdef CONFIG_KMEMTRACE | |
22 | ||
23 | extern void kmemtrace_init(void); | |
24 | ||
25 | static inline void kmemtrace_mark_alloc_node(enum kmemtrace_type_id type_id, | |
26 | unsigned long call_site, | |
27 | const void *ptr, | |
28 | size_t bytes_req, | |
29 | size_t bytes_alloc, | |
30 | gfp_t gfp_flags, | |
31 | int node) | |
32 | { | |
33 | trace_mark(kmemtrace_alloc, "type_id %d call_site %lu ptr %lu " | |
34 | "bytes_req %lu bytes_alloc %lu gfp_flags %lu node %d", | |
35 | type_id, call_site, (unsigned long) ptr, | |
36 | bytes_req, bytes_alloc, (unsigned long) gfp_flags, node); | |
37 | } | |
38 | ||
39 | static inline void kmemtrace_mark_free(enum kmemtrace_type_id type_id, | |
40 | unsigned long call_site, | |
41 | const void *ptr) | |
42 | { | |
43 | trace_mark(kmemtrace_free, "type_id %d call_site %lu ptr %lu", | |
44 | type_id, call_site, (unsigned long) ptr); | |
45 | } | |
46 | ||
47 | #else /* CONFIG_KMEMTRACE */ | |
48 | ||
49 | static inline void kmemtrace_init(void) | |
50 | { | |
51 | } | |
52 | ||
53 | static inline void kmemtrace_mark_alloc_node(enum kmemtrace_type_id type_id, | |
54 | unsigned long call_site, | |
55 | const void *ptr, | |
56 | size_t bytes_req, | |
57 | size_t bytes_alloc, | |
58 | gfp_t gfp_flags, | |
59 | int node) | |
60 | { | |
61 | } | |
62 | ||
63 | static inline void kmemtrace_mark_free(enum kmemtrace_type_id type_id, | |
64 | unsigned long call_site, | |
65 | const void *ptr) | |
66 | { | |
67 | } | |
68 | ||
69 | #endif /* CONFIG_KMEMTRACE */ | |
70 | ||
71 | static inline void kmemtrace_mark_alloc(enum kmemtrace_type_id type_id, | |
72 | unsigned long call_site, | |
73 | const void *ptr, | |
74 | size_t bytes_req, | |
75 | size_t bytes_alloc, | |
76 | gfp_t gfp_flags) | |
77 | { | |
78 | kmemtrace_mark_alloc_node(type_id, call_site, ptr, | |
79 | bytes_req, bytes_alloc, gfp_flags, -1); | |
80 | } | |
81 | ||
82 | #endif /* __KERNEL__ */ | |
83 | ||
84 | #endif /* _LINUX_KMEMTRACE_H */ | |
85 |