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
|
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/* Data structures shared between BPF and tools. */
#ifndef UTIL_BPF_SKEL_LOCK_DATA_H
#define UTIL_BPF_SKEL_LOCK_DATA_H
struct tstamp_data {
u64 timestamp;
u64 lock;
u32 flags;
s32 stack_id;
};
struct contention_key {
s32 stack_id;
u32 pid;
u64 lock_addr_or_cgroup;
};
#define TASK_COMM_LEN 16
struct contention_task_data {
char comm[TASK_COMM_LEN];
};
/* default buffer size */
#define MAX_ENTRIES 16384
/*
* Upper bits of the flags in the contention_data are used to identify
* some well-known locks which do not have symbols (non-global locks).
*/
#define LCD_F_MMAP_LOCK (1U << 31)
#define LCD_F_SIGHAND_LOCK (1U << 30)
#define LCB_F_MAX_FLAGS (1U << 7)
struct contention_data {
u64 total_time;
u64 min_time;
u64 max_time;
u32 count;
u32 flags;
};
enum lock_aggr_mode {
LOCK_AGGR_ADDR = 0,
LOCK_AGGR_TASK,
LOCK_AGGR_CALLER,
LOCK_AGGR_CGROUP,
};
enum lock_class_sym {
LOCK_CLASS_NONE,
LOCK_CLASS_RQLOCK,
};
#endif /* UTIL_BPF_SKEL_LOCK_DATA_H */
|
