1/* SPDX-License-Identifier: GPL-2.0 */
 2#undef TRACE_SYSTEM
 3#define TRACE_SYSTEM mmap_lock
 4
 5#if !defined(_TRACE_MMAP_LOCK_H) || defined(TRACE_HEADER_MULTI_READ)
 6#define _TRACE_MMAP_LOCK_H
 7
 8#include <linux/tracepoint.h>
 9#include <linux/types.h>
10
11struct mm_struct;
12
13DECLARE_EVENT_CLASS(mmap_lock,
14
15	TP_PROTO(struct mm_struct *mm, const char *memcg_path, bool write),
16
17	TP_ARGS(mm, memcg_path, write),
18
19	TP_STRUCT__entry(
20		__field(struct mm_struct *, mm)
21		__string(memcg_path, memcg_path)
22		__field(bool, write)
23	),
24
25	TP_fast_assign(
26		__entry->mm = mm;
27		__assign_str(memcg_path);
28		__entry->write = write;
29	),
30
31	TP_printk(
32		"mm=%p memcg_path=%s write=%s",
33		__entry->mm,
34		__get_str(memcg_path),
35		__entry->write ? "true" : "false"
36	)
37);
38
39#define DEFINE_MMAP_LOCK_EVENT(name)                                    \
40	DEFINE_EVENT(mmap_lock, name,                                   \
41		TP_PROTO(struct mm_struct *mm, const char *memcg_path,  \
42			bool write),                                    \
43		TP_ARGS(mm, memcg_path, write))
44
45DEFINE_MMAP_LOCK_EVENT(mmap_lock_start_locking);
46DEFINE_MMAP_LOCK_EVENT(mmap_lock_released);
47
48TRACE_EVENT(mmap_lock_acquire_returned,
49
50	TP_PROTO(struct mm_struct *mm, const char *memcg_path, bool write,
51		bool success),
52
53	TP_ARGS(mm, memcg_path, write, success),
54
55	TP_STRUCT__entry(
56		__field(struct mm_struct *, mm)
57		__string(memcg_path, memcg_path)
58		__field(bool, write)
59		__field(bool, success)
60	),
61
62	TP_fast_assign(
63		__entry->mm = mm;
64		__assign_str(memcg_path);
65		__entry->write = write;
66		__entry->success = success;
67	),
68
69	TP_printk(
70		"mm=%p memcg_path=%s write=%s success=%s",
71		__entry->mm,
72		__get_str(memcg_path),
73		__entry->write ? "true" : "false",
74		__entry->success ? "true" : "false"
75	)
76);
77
78#endif /* _TRACE_MMAP_LOCK_H */
79
80/* This part must be outside protection */
81#include <trace/define_trace.h>