1 /* SPDX-License-Identifier: GPL-2.0 */ <<
2 /* 1 /*
3 * latencytop.h: Infrastructure for displaying 2 * latencytop.h: Infrastructure for displaying latency
4 * 3 *
5 * (C) Copyright 2008 Intel Corporation 4 * (C) Copyright 2008 Intel Corporation
6 * Author: Arjan van de Ven <arjan@linux.intel 5 * Author: Arjan van de Ven <arjan@linux.intel.com>
7 * 6 *
8 */ 7 */
9 8
10 #ifndef _INCLUDE_GUARD_LATENCYTOP_H_ 9 #ifndef _INCLUDE_GUARD_LATENCYTOP_H_
11 #define _INCLUDE_GUARD_LATENCYTOP_H_ 10 #define _INCLUDE_GUARD_LATENCYTOP_H_
12 11
13 #include <linux/compiler.h> 12 #include <linux/compiler.h>
14 struct task_struct; <<
15 <<
16 #ifdef CONFIG_LATENCYTOP 13 #ifdef CONFIG_LATENCYTOP
17 14
18 #define LT_SAVECOUNT 32 15 #define LT_SAVECOUNT 32
19 #define LT_BACKTRACEDEPTH 12 16 #define LT_BACKTRACEDEPTH 12
20 17
21 struct latency_record { 18 struct latency_record {
22 unsigned long backtrace[LT_BACKTRACE 19 unsigned long backtrace[LT_BACKTRACEDEPTH];
23 unsigned int count; 20 unsigned int count;
24 unsigned long time; 21 unsigned long time;
25 unsigned long max; 22 unsigned long max;
26 }; 23 };
27 24
28 25
>> 26 struct task_struct;
29 27
30 extern int latencytop_enabled; 28 extern int latencytop_enabled;
31 void __account_scheduler_latency(struct task_s 29 void __account_scheduler_latency(struct task_struct *task, int usecs, int inter);
32 static inline void 30 static inline void
33 account_scheduler_latency(struct task_struct * 31 account_scheduler_latency(struct task_struct *task, int usecs, int inter)
34 { 32 {
35 if (unlikely(latencytop_enabled)) 33 if (unlikely(latencytop_enabled))
36 __account_scheduler_latency(ta 34 __account_scheduler_latency(task, usecs, inter);
37 } 35 }
38 36
39 void clear_tsk_latency_tracing(struct task_str !! 37 void clear_all_latency_tracing(struct task_struct *p);
40 38
41 #else 39 #else
42 40
43 static inline void 41 static inline void
44 account_scheduler_latency(struct task_struct * 42 account_scheduler_latency(struct task_struct *task, int usecs, int inter)
45 { 43 {
46 } 44 }
47 45
48 static inline void clear_tsk_latency_tracing(s !! 46 static inline void clear_all_latency_tracing(struct task_struct *p)
49 { 47 {
50 } 48 }
51 49
52 #endif 50 #endif
53 51
54 #endif 52 #endif
55 53
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.