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/memcontrol.h>
9#include <linux/tracepoint.h>
10#include <linux/types.h>
11
12struct mm_struct;
13
14DECLARE_EVENT_CLASS(mmap_lock,
15
16 TP_PROTO(struct mm_struct *mm, bool write),
17
18 TP_ARGS(mm, write),
19
20 TP_STRUCT__entry(
21 __field(struct mm_struct *, mm)
22 __field(u64, memcg_id)
23 __field(bool, write)
24 ),
25
26 TP_fast_assign(
27 __entry->mm = mm;
28 __entry->memcg_id = cgroup_id_from_mm(mm);
29 __entry->write = write;
30 ),
31
32 TP_printk(
33 "mm=%p memcg_id=%llu write=%s",
34 __entry->mm, __entry->memcg_id,
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, bool write), \
42 TP_ARGS(mm, write))
43
44DEFINE_MMAP_LOCK_EVENT(mmap_lock_start_locking);
45DEFINE_MMAP_LOCK_EVENT(mmap_lock_released);
46
47TRACE_EVENT(mmap_lock_acquire_returned,
48
49 TP_PROTO(struct mm_struct *mm, bool write, bool success),
50
51 TP_ARGS(mm, write, success),
52
53 TP_STRUCT__entry(
54 __field(struct mm_struct *, mm)
55 __field(u64, memcg_id)
56 __field(bool, write)
57 __field(bool, success)
58 ),
59
60 TP_fast_assign(
61 __entry->mm = mm;
62 __entry->memcg_id = cgroup_id_from_mm(mm);
63 __entry->write = write;
64 __entry->success = success;
65 ),
66
67 TP_printk(
68 "mm=%p memcg_id=%llu write=%s success=%s",
69 __entry->mm,
70 __entry->memcg_id,
71 __entry->write ? "true" : "false",
72 __entry->success ? "true" : "false"
73 )
74);
75
76#endif /* _TRACE_MMAP_LOCK_H */
77
78/* This part must be outside protection */
79#include <trace/define_trace.h>
80