Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM migrate
4
5#if !defined(_TRACE_MIGRATE_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_MIGRATE_H
7
8#include <linux/tracepoint.h>
9
10#define MIGRATE_MODE \
11 EM( MIGRATE_ASYNC, "MIGRATE_ASYNC") \
12 EM( MIGRATE_SYNC_LIGHT, "MIGRATE_SYNC_LIGHT") \
13 EMe(MIGRATE_SYNC, "MIGRATE_SYNC")
14
15
16#define MIGRATE_REASON \
17 EM( MR_COMPACTION, "compaction") \
18 EM( MR_MEMORY_FAILURE, "memory_failure") \
19 EM( MR_MEMORY_HOTPLUG, "memory_hotplug") \
20 EM( MR_SYSCALL, "syscall_or_cpuset") \
21 EM( MR_MEMPOLICY_MBIND, "mempolicy_mbind") \
22 EM( MR_NUMA_MISPLACED, "numa_misplaced") \
23 EMe(MR_CMA, "cma")
24
25/*
26 * First define the enums in the above macros to be exported to userspace
27 * via TRACE_DEFINE_ENUM().
28 */
29#undef EM
30#undef EMe
31#define EM(a, b) TRACE_DEFINE_ENUM(a);
32#define EMe(a, b) TRACE_DEFINE_ENUM(a);
33
34MIGRATE_MODE
35MIGRATE_REASON
36
37/*
38 * Now redefine the EM() and EMe() macros to map the enums to the strings
39 * that will be printed in the output.
40 */
41#undef EM
42#undef EMe
43#define EM(a, b) {a, b},
44#define EMe(a, b) {a, b}
45
46TRACE_EVENT(mm_migrate_pages,
47
48 TP_PROTO(unsigned long succeeded, unsigned long failed,
49 enum migrate_mode mode, int reason),
50
51 TP_ARGS(succeeded, failed, mode, reason),
52
53 TP_STRUCT__entry(
54 __field( unsigned long, succeeded)
55 __field( unsigned long, failed)
56 __field( enum migrate_mode, mode)
57 __field( int, reason)
58 ),
59
60 TP_fast_assign(
61 __entry->succeeded = succeeded;
62 __entry->failed = failed;
63 __entry->mode = mode;
64 __entry->reason = reason;
65 ),
66
67 TP_printk("nr_succeeded=%lu nr_failed=%lu mode=%s reason=%s",
68 __entry->succeeded,
69 __entry->failed,
70 __print_symbolic(__entry->mode, MIGRATE_MODE),
71 __print_symbolic(__entry->reason, MIGRATE_REASON))
72);
73
74TRACE_EVENT(mm_numa_migrate_ratelimit,
75
76 TP_PROTO(struct task_struct *p, int dst_nid, unsigned long nr_pages),
77
78 TP_ARGS(p, dst_nid, nr_pages),
79
80 TP_STRUCT__entry(
81 __array( char, comm, TASK_COMM_LEN)
82 __field( pid_t, pid)
83 __field( int, dst_nid)
84 __field( unsigned long, nr_pages)
85 ),
86
87 TP_fast_assign(
88 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
89 __entry->pid = p->pid;
90 __entry->dst_nid = dst_nid;
91 __entry->nr_pages = nr_pages;
92 ),
93
94 TP_printk("comm=%s pid=%d dst_nid=%d nr_pages=%lu",
95 __entry->comm,
96 __entry->pid,
97 __entry->dst_nid,
98 __entry->nr_pages)
99);
100#endif /* _TRACE_MIGRATE_H */
101
102/* This part must be outside protection */
103#include <trace/define_trace.h>