1/* SPDX-License-Identifier: GPL-2.0 */
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM oom
4
5#if !defined(_TRACE_OOM_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_OOM_H
7#include <linux/tracepoint.h>
8#include <trace/events/mmflags.h>
9
10#define PG_COUNT_TO_KB(x) ((x) << (PAGE_SHIFT - 10))
11
12TRACE_EVENT(oom_score_adj_update,
13
14	TP_PROTO(struct task_struct *task),
15
16	TP_ARGS(task),
17
18	TP_STRUCT__entry(
19		__field(	pid_t,	pid)
20		__array(	char,	comm,	TASK_COMM_LEN )
21		__field(	short,	oom_score_adj)
22	),
23
24	TP_fast_assign(
25		__entry->pid = task->pid;
26		memcpy(__entry->comm, task->comm, TASK_COMM_LEN);
27		__entry->oom_score_adj = task->signal->oom_score_adj;
28	),
29
30	TP_printk("pid=%d comm=%s oom_score_adj=%hd",
31		__entry->pid, __entry->comm, __entry->oom_score_adj)
32);
33
34TRACE_EVENT(reclaim_retry_zone,
35
36	TP_PROTO(struct zoneref *zoneref,
37		int order,
38		unsigned long reclaimable,
39		unsigned long available,
40		unsigned long min_wmark,
41		int no_progress_loops,
42		bool wmark_check),
43
44	TP_ARGS(zoneref, order, reclaimable, available, min_wmark, no_progress_loops, wmark_check),
45
46	TP_STRUCT__entry(
47		__field(	int, node)
48		__field(	int, zone_idx)
49		__field(	int,	order)
50		__field(	unsigned long,	reclaimable)
51		__field(	unsigned long,	available)
52		__field(	unsigned long,	min_wmark)
53		__field(	int,	no_progress_loops)
54		__field(	bool,	wmark_check)
55	),
56
57	TP_fast_assign(
58		__entry->node = zone_to_nid(zoneref->zone);
59		__entry->zone_idx = zoneref->zone_idx;
60		__entry->order = order;
61		__entry->reclaimable = reclaimable;
62		__entry->available = available;
63		__entry->min_wmark = min_wmark;
64		__entry->no_progress_loops = no_progress_loops;
65		__entry->wmark_check = wmark_check;
66	),
67
68	TP_printk("node=%d zone=%-8s order=%d reclaimable=%lu available=%lu min_wmark=%lu no_progress_loops=%d wmark_check=%d",
69			__entry->node, __print_symbolic(__entry->zone_idx, ZONE_TYPE),
70			__entry->order,
71			__entry->reclaimable, __entry->available, __entry->min_wmark,
72			__entry->no_progress_loops,
73			__entry->wmark_check)
74);
75
76TRACE_EVENT(mark_victim,
77	TP_PROTO(struct task_struct *task, uid_t uid),
78
79	TP_ARGS(task, uid),
80
81	TP_STRUCT__entry(
82		__field(int, pid)
83		__string(comm, task->comm)
84		__field(unsigned long, total_vm)
85		__field(unsigned long, anon_rss)
86		__field(unsigned long, file_rss)
87		__field(unsigned long, shmem_rss)
88		__field(uid_t, uid)
89		__field(unsigned long, pgtables)
90		__field(short, oom_score_adj)
91	),
92
93	TP_fast_assign(
94		__entry->pid = task->pid;
95		__assign_str(comm, task->comm);
96		__entry->total_vm = PG_COUNT_TO_KB(task->mm->total_vm);
97		__entry->anon_rss = PG_COUNT_TO_KB(get_mm_counter(task->mm, MM_ANONPAGES));
98		__entry->file_rss = PG_COUNT_TO_KB(get_mm_counter(task->mm, MM_FILEPAGES));
99		__entry->shmem_rss = PG_COUNT_TO_KB(get_mm_counter(task->mm, MM_SHMEMPAGES));
100		__entry->uid = uid;
101		__entry->pgtables = mm_pgtables_bytes(task->mm) >> 10;
102		__entry->oom_score_adj = task->signal->oom_score_adj;
103	),
104
105	TP_printk("pid=%d comm=%s total-vm=%lukB anon-rss=%lukB file-rss:%lukB shmem-rss:%lukB uid=%u pgtables=%lukB oom_score_adj=%hd",
106		__entry->pid,
107		__get_str(comm),
108		__entry->total_vm,
109		__entry->anon_rss,
110		__entry->file_rss,
111		__entry->shmem_rss,
112		__entry->uid,
113		__entry->pgtables,
114		__entry->oom_score_adj
115	)
116);
117
118TRACE_EVENT(wake_reaper,
119	TP_PROTO(int pid),
120
121	TP_ARGS(pid),
122
123	TP_STRUCT__entry(
124		__field(int, pid)
125	),
126
127	TP_fast_assign(
128		__entry->pid = pid;
129	),
130
131	TP_printk("pid=%d", __entry->pid)
132);
133
134TRACE_EVENT(start_task_reaping,
135	TP_PROTO(int pid),
136
137	TP_ARGS(pid),
138
139	TP_STRUCT__entry(
140		__field(int, pid)
141	),
142
143	TP_fast_assign(
144		__entry->pid = pid;
145	),
146
147	TP_printk("pid=%d", __entry->pid)
148);
149
150TRACE_EVENT(finish_task_reaping,
151	TP_PROTO(int pid),
152
153	TP_ARGS(pid),
154
155	TP_STRUCT__entry(
156		__field(int, pid)
157	),
158
159	TP_fast_assign(
160		__entry->pid = pid;
161	),
162
163	TP_printk("pid=%d", __entry->pid)
164);
165
166TRACE_EVENT(skip_task_reaping,
167	TP_PROTO(int pid),
168
169	TP_ARGS(pid),
170
171	TP_STRUCT__entry(
172		__field(int, pid)
173	),
174
175	TP_fast_assign(
176		__entry->pid = pid;
177	),
178
179	TP_printk("pid=%d", __entry->pid)
180);
181
182#ifdef CONFIG_COMPACTION
183TRACE_EVENT(compact_retry,
184
185	TP_PROTO(int order,
186		enum compact_priority priority,
187		enum compact_result result,
188		int retries,
189		int max_retries,
190		bool ret),
191
192	TP_ARGS(order, priority, result, retries, max_retries, ret),
193
194	TP_STRUCT__entry(
195		__field(	int, order)
196		__field(	int, priority)
197		__field(	int, result)
198		__field(	int, retries)
199		__field(	int, max_retries)
200		__field(	bool, ret)
201	),
202
203	TP_fast_assign(
204		__entry->order = order;
205		__entry->priority = priority;
206		__entry->result = compact_result_to_feedback(result);
207		__entry->retries = retries;
208		__entry->max_retries = max_retries;
209		__entry->ret = ret;
210	),
211
212	TP_printk("order=%d priority=%s compaction_result=%s retries=%d max_retries=%d should_retry=%d",
213			__entry->order,
214			__print_symbolic(__entry->priority, COMPACTION_PRIORITY),
215			__print_symbolic(__entry->result, COMPACTION_FEEDBACK),
216			__entry->retries, __entry->max_retries,
217			__entry->ret)
218);
219#endif /* CONFIG_COMPACTION */
220#endif
221
222/* This part must be outside protection */
223#include <trace/define_trace.h>
224