summaryrefslogtreecommitdiffstats
path: root/include/trace/kmemtrace.h
blob: ad8b7857855adebdac58e643428ead90c5e422c0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
/*
 * Copyright (C) 2008 Eduard - Gabriel Munteanu
 *
 * This file is released under GPL version 2.
 */

#ifndef _LINUX_KMEMTRACE_H
#define _LINUX_KMEMTRACE_H

#ifdef __KERNEL__

#include <linux/types.h>
#include <linux/marker.h>

enum kmemtrace_type_id {
	KMEMTRACE_TYPE_KMALLOC = 0,	/* kmalloc() or kfree(). */
	KMEMTRACE_TYPE_CACHE,		/* kmem_cache_*(). */
	KMEMTRACE_TYPE_PAGES,		/* __get_free_pages() and friends. */
};

#ifdef CONFIG_KMEMTRACE

extern void kmemtrace_init(void);

extern void kmemtrace_mark_alloc_node(enum kmemtrace_type_id type_id,
					     unsigned long call_site,
					     const void *ptr,
					     size_t bytes_req,
					     size_t bytes_alloc,
					     gfp_t gfp_flags,
					     int node);

extern void kmemtrace_mark_free(enum kmemtrace_type_id type_id,
				       unsigned long call_site,
				       const void *ptr);

#else /* CONFIG_KMEMTRACE */

static inline void kmemtrace_init(void)
{
}

static inline void kmemtrace_mark_alloc_node(enum kmemtrace_type_id type_id,
					     unsigned long call_site,
					     const void *ptr,
					     size_t bytes_req,
					     size_t bytes_alloc,
					     gfp_t gfp_flags,
					     int node)
{
}

static inline void kmemtrace_mark_free(enum kmemtrace_type_id type_id,
				       unsigned long call_site,
				       const void *ptr)
{
}

#endif /* CONFIG_KMEMTRACE */

static inline void kmemtrace_mark_alloc(enum kmemtrace_type_id type_id,
					unsigned long call_site,
					const void *ptr,
					size_t bytes_req,
					size_t bytes_alloc,
					gfp_t gfp_flags)
{
	kmemtrace_mark_alloc_node(type_id, call_site, ptr,
				  bytes_req, bytes_alloc, gfp_flags, -1);
}

#endif /* __KERNEL__ */

#endif /* _LINUX_KMEMTRACE_H */

OpenPOWER on IntegriCloud