1 /* SPDX-License-Identifier: GPL-2.0 */
3 #define TRACE_SYSTEM oom
5 #if !defined(_TRACE_OOM_H) || defined(TRACE_HEADER_MULTI_READ)
7 #include <linux/tracepoint.h>
8 #include <trace/events/mmflags.h>
10 #define PG_COUNT_TO_KB(x) ((x) << (PAGE_SHIFT - 10))
12 TRACE_EVENT(oom_score_adj_update,
14 TP_PROTO(struct task_struct *task),
20 __array( char, comm, TASK_COMM_LEN )
21 __field( short, oom_score_adj)
25 __entry->pid = task->pid;
26 memcpy(__entry->comm, task->comm, TASK_COMM_LEN);
27 __entry->oom_score_adj = task->signal->oom_score_adj;
30 TP_printk("pid=%d comm=%s oom_score_adj=%hd",
31 __entry->pid, __entry->comm, __entry->oom_score_adj)
34 TRACE_EVENT(reclaim_retry_zone,
36 TP_PROTO(struct zoneref *zoneref,
38 unsigned long reclaimable,
39 unsigned long available,
40 unsigned long min_wmark,
41 int no_progress_loops,
44 TP_ARGS(zoneref, order, reclaimable, available, min_wmark, no_progress_loops, wmark_check),
48 __field( int, zone_idx)
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)
58 __entry->node = zonelist_node_idx(zoneref);
59 __entry->zone_idx = zonelist_zone_idx(zoneref);
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;
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),
71 __entry->reclaimable, __entry->available, __entry->min_wmark,
72 __entry->no_progress_loops,
76 TRACE_EVENT(mark_victim,
77 TP_PROTO(struct task_struct *task, uid_t uid),
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)
89 __field(unsigned long, pgtables)
90 __field(short, oom_score_adj)
94 __entry->pid = task->pid;
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));
101 __entry->pgtables = mm_pgtables_bytes(task->mm) >> 10;
102 __entry->oom_score_adj = task->signal->oom_score_adj;
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",
114 __entry->oom_score_adj
118 TRACE_EVENT(wake_reaper,
131 TP_printk("pid=%d", __entry->pid)
134 TRACE_EVENT(start_task_reaping,
147 TP_printk("pid=%d", __entry->pid)
150 TRACE_EVENT(finish_task_reaping,
163 TP_printk("pid=%d", __entry->pid)
166 TRACE_EVENT(skip_task_reaping,
179 TP_printk("pid=%d", __entry->pid)
182 #ifdef CONFIG_COMPACTION
183 TRACE_EVENT(compact_retry,
186 enum compact_priority priority,
187 enum compact_result result,
192 TP_ARGS(order, priority, result, retries, max_retries, ret),
196 __field( int, priority)
197 __field( int, result)
198 __field( int, retries)
199 __field( int, max_retries)
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;
212 TP_printk("order=%d priority=%s compaction_result=%s retries=%d max_retries=%d should_retry=%d",
214 __print_symbolic(__entry->priority, COMPACTION_PRIORITY),
215 __print_symbolic(__entry->result, COMPACTION_FEEDBACK),
216 __entry->retries, __entry->max_retries,
219 #endif /* CONFIG_COMPACTION */
222 /* This part must be outside protection */
223 #include <trace/define_trace.h>