1/* SPDX-License-Identifier: GPL-2.0 */
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM vmscan
4
5#if !defined(_TRACE_VMSCAN_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_VMSCAN_H
7
8#include <linux/types.h>
9#include <linux/tracepoint.h>
10#include <linux/mm.h>
11#include <linux/memcontrol.h>
12#include <trace/events/mmflags.h>
13
14#define RECLAIM_WB_ANON		0x0001u
15#define RECLAIM_WB_FILE		0x0002u
16#define RECLAIM_WB_MIXED	0x0010u
17#define RECLAIM_WB_SYNC		0x0004u /* Unused, all reclaim async */
18#define RECLAIM_WB_ASYNC	0x0008u
19#define RECLAIM_WB_LRU		(RECLAIM_WB_ANON|RECLAIM_WB_FILE)
20
21#define show_reclaim_flags(flags)				\
22	(flags) ? __print_flags(flags, "|",			\
23		{RECLAIM_WB_ANON,	"RECLAIM_WB_ANON"},	\
24		{RECLAIM_WB_FILE,	"RECLAIM_WB_FILE"},	\
25		{RECLAIM_WB_MIXED,	"RECLAIM_WB_MIXED"},	\
26		{RECLAIM_WB_SYNC,	"RECLAIM_WB_SYNC"},	\
27		{RECLAIM_WB_ASYNC,	"RECLAIM_WB_ASYNC"}	\
28		) : "RECLAIM_WB_NONE"
29
30#define _VMSCAN_THROTTLE_WRITEBACK	(1 << VMSCAN_THROTTLE_WRITEBACK)
31#define _VMSCAN_THROTTLE_ISOLATED	(1 << VMSCAN_THROTTLE_ISOLATED)
32#define _VMSCAN_THROTTLE_NOPROGRESS	(1 << VMSCAN_THROTTLE_NOPROGRESS)
33#define _VMSCAN_THROTTLE_CONGESTED	(1 << VMSCAN_THROTTLE_CONGESTED)
34
35#define show_throttle_flags(flags)						\
36	(flags) ? __print_flags(flags, "|",					\
37		{_VMSCAN_THROTTLE_WRITEBACK,	"VMSCAN_THROTTLE_WRITEBACK"},	\
38		{_VMSCAN_THROTTLE_ISOLATED,	"VMSCAN_THROTTLE_ISOLATED"},	\
39		{_VMSCAN_THROTTLE_NOPROGRESS,	"VMSCAN_THROTTLE_NOPROGRESS"},	\
40		{_VMSCAN_THROTTLE_CONGESTED,	"VMSCAN_THROTTLE_CONGESTED"}	\
41		) : "VMSCAN_THROTTLE_NONE"
42
43
44#define trace_reclaim_flags(file) ( \
45	(file ? RECLAIM_WB_FILE : RECLAIM_WB_ANON) | \
46	(RECLAIM_WB_ASYNC) \
47	)
48
49TRACE_EVENT(mm_vmscan_kswapd_sleep,
50
51	TP_PROTO(int nid),
52
53	TP_ARGS(nid),
54
55	TP_STRUCT__entry(
56		__field(	int,	nid	)
57	),
58
59	TP_fast_assign(
60		__entry->nid	= nid;
61	),
62
63	TP_printk("nid=%d", __entry->nid)
64);
65
66TRACE_EVENT(mm_vmscan_kswapd_wake,
67
68	TP_PROTO(int nid, int zid, int order),
69
70	TP_ARGS(nid, zid, order),
71
72	TP_STRUCT__entry(
73		__field(	int,	nid	)
74		__field(	int,	zid	)
75		__field(	int,	order	)
76	),
77
78	TP_fast_assign(
79		__entry->nid	= nid;
80		__entry->zid    = zid;
81		__entry->order	= order;
82	),
83
84	TP_printk("nid=%d order=%d",
85		__entry->nid,
86		__entry->order)
87);
88
89TRACE_EVENT(mm_vmscan_wakeup_kswapd,
90
91	TP_PROTO(int nid, int zid, int order, gfp_t gfp_flags),
92
93	TP_ARGS(nid, zid, order, gfp_flags),
94
95	TP_STRUCT__entry(
96		__field(	int,	nid		)
97		__field(	int,	zid		)
98		__field(	int,	order		)
99		__field(	unsigned long,	gfp_flags	)
100	),
101
102	TP_fast_assign(
103		__entry->nid		= nid;
104		__entry->zid		= zid;
105		__entry->order		= order;
106		__entry->gfp_flags	= (__force unsigned long)gfp_flags;
107	),
108
109	TP_printk("nid=%d order=%d gfp_flags=%s",
110		__entry->nid,
111		__entry->order,
112		show_gfp_flags(__entry->gfp_flags))
113);
114
115DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_begin_template,
116
117	TP_PROTO(int order, gfp_t gfp_flags),
118
119	TP_ARGS(order, gfp_flags),
120
121	TP_STRUCT__entry(
122		__field(	int,	order		)
123		__field(	unsigned long,	gfp_flags	)
124	),
125
126	TP_fast_assign(
127		__entry->order		= order;
128		__entry->gfp_flags	= (__force unsigned long)gfp_flags;
129	),
130
131	TP_printk("order=%d gfp_flags=%s",
132		__entry->order,
133		show_gfp_flags(__entry->gfp_flags))
134);
135
136DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_direct_reclaim_begin,
137
138	TP_PROTO(int order, gfp_t gfp_flags),
139
140	TP_ARGS(order, gfp_flags)
141);
142
143#ifdef CONFIG_MEMCG
144DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_reclaim_begin,
145
146	TP_PROTO(int order, gfp_t gfp_flags),
147
148	TP_ARGS(order, gfp_flags)
149);
150
151DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_softlimit_reclaim_begin,
152
153	TP_PROTO(int order, gfp_t gfp_flags),
154
155	TP_ARGS(order, gfp_flags)
156);
157#endif /* CONFIG_MEMCG */
158
159DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_end_template,
160
161	TP_PROTO(unsigned long nr_reclaimed),
162
163	TP_ARGS(nr_reclaimed),
164
165	TP_STRUCT__entry(
166		__field(	unsigned long,	nr_reclaimed	)
167	),
168
169	TP_fast_assign(
170		__entry->nr_reclaimed	= nr_reclaimed;
171	),
172
173	TP_printk("nr_reclaimed=%lu", __entry->nr_reclaimed)
174);
175
176DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_direct_reclaim_end,
177
178	TP_PROTO(unsigned long nr_reclaimed),
179
180	TP_ARGS(nr_reclaimed)
181);
182
183#ifdef CONFIG_MEMCG
184DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_memcg_reclaim_end,
185
186	TP_PROTO(unsigned long nr_reclaimed),
187
188	TP_ARGS(nr_reclaimed)
189);
190
191DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_memcg_softlimit_reclaim_end,
192
193	TP_PROTO(unsigned long nr_reclaimed),
194
195	TP_ARGS(nr_reclaimed)
196);
197#endif /* CONFIG_MEMCG */
198
199TRACE_EVENT(mm_shrink_slab_start,
200	TP_PROTO(struct shrinker *shr, struct shrink_control *sc,
201		long nr_objects_to_shrink, unsigned long cache_items,
202		unsigned long long delta, unsigned long total_scan,
203		int priority),
204
205	TP_ARGS(shr, sc, nr_objects_to_shrink, cache_items, delta, total_scan,
206		priority),
207
208	TP_STRUCT__entry(
209		__field(struct shrinker *, shr)
210		__field(void *, shrink)
211		__field(int, nid)
212		__field(long, nr_objects_to_shrink)
213		__field(unsigned long, gfp_flags)
214		__field(unsigned long, cache_items)
215		__field(unsigned long long, delta)
216		__field(unsigned long, total_scan)
217		__field(int, priority)
218	),
219
220	TP_fast_assign(
221		__entry->shr = shr;
222		__entry->shrink = shr->scan_objects;
223		__entry->nid = sc->nid;
224		__entry->nr_objects_to_shrink = nr_objects_to_shrink;
225		__entry->gfp_flags = (__force unsigned long)sc->gfp_mask;
226		__entry->cache_items = cache_items;
227		__entry->delta = delta;
228		__entry->total_scan = total_scan;
229		__entry->priority = priority;
230	),
231
232	TP_printk("%pS %p: nid: %d objects to shrink %ld gfp_flags %s cache items %ld delta %lld total_scan %ld priority %d",
233		__entry->shrink,
234		__entry->shr,
235		__entry->nid,
236		__entry->nr_objects_to_shrink,
237		show_gfp_flags(__entry->gfp_flags),
238		__entry->cache_items,
239		__entry->delta,
240		__entry->total_scan,
241		__entry->priority)
242);
243
244TRACE_EVENT(mm_shrink_slab_end,
245	TP_PROTO(struct shrinker *shr, int nid, int shrinker_retval,
246		long unused_scan_cnt, long new_scan_cnt, long total_scan),
247
248	TP_ARGS(shr, nid, shrinker_retval, unused_scan_cnt, new_scan_cnt,
249		total_scan),
250
251	TP_STRUCT__entry(
252		__field(struct shrinker *, shr)
253		__field(int, nid)
254		__field(void *, shrink)
255		__field(long, unused_scan)
256		__field(long, new_scan)
257		__field(int, retval)
258		__field(long, total_scan)
259	),
260
261	TP_fast_assign(
262		__entry->shr = shr;
263		__entry->nid = nid;
264		__entry->shrink = shr->scan_objects;
265		__entry->unused_scan = unused_scan_cnt;
266		__entry->new_scan = new_scan_cnt;
267		__entry->retval = shrinker_retval;
268		__entry->total_scan = total_scan;
269	),
270
271	TP_printk("%pS %p: nid: %d unused scan count %ld new scan count %ld total_scan %ld last shrinker return val %d",
272		__entry->shrink,
273		__entry->shr,
274		__entry->nid,
275		__entry->unused_scan,
276		__entry->new_scan,
277		__entry->total_scan,
278		__entry->retval)
279);
280
281TRACE_EVENT(mm_vmscan_lru_isolate,
282	TP_PROTO(int highest_zoneidx,
283		int order,
284		unsigned long nr_requested,
285		unsigned long nr_scanned,
286		unsigned long nr_skipped,
287		unsigned long nr_taken,
288		int lru),
289
290	TP_ARGS(highest_zoneidx, order, nr_requested, nr_scanned, nr_skipped, nr_taken, lru),
291
292	TP_STRUCT__entry(
293		__field(int, highest_zoneidx)
294		__field(int, order)
295		__field(unsigned long, nr_requested)
296		__field(unsigned long, nr_scanned)
297		__field(unsigned long, nr_skipped)
298		__field(unsigned long, nr_taken)
299		__field(int, lru)
300	),
301
302	TP_fast_assign(
303		__entry->highest_zoneidx = highest_zoneidx;
304		__entry->order = order;
305		__entry->nr_requested = nr_requested;
306		__entry->nr_scanned = nr_scanned;
307		__entry->nr_skipped = nr_skipped;
308		__entry->nr_taken = nr_taken;
309		__entry->lru = lru;
310	),
311
312	/*
313	 * classzone is previous name of the highest_zoneidx.
314	 * Reason not to change it is the ABI requirement of the tracepoint.
315	 */
316	TP_printk("classzone=%d order=%d nr_requested=%lu nr_scanned=%lu nr_skipped=%lu nr_taken=%lu lru=%s",
317		__entry->highest_zoneidx,
318		__entry->order,
319		__entry->nr_requested,
320		__entry->nr_scanned,
321		__entry->nr_skipped,
322		__entry->nr_taken,
323		__print_symbolic(__entry->lru, LRU_NAMES))
324);
325
326TRACE_EVENT(mm_vmscan_write_folio,
327
328	TP_PROTO(struct folio *folio),
329
330	TP_ARGS(folio),
331
332	TP_STRUCT__entry(
333		__field(unsigned long, pfn)
334		__field(int, reclaim_flags)
335	),
336
337	TP_fast_assign(
338		__entry->pfn = folio_pfn(folio);
339		__entry->reclaim_flags = trace_reclaim_flags(
340						folio_is_file_lru(folio));
341	),
342
343	TP_printk("page=%p pfn=0x%lx flags=%s",
344		pfn_to_page(__entry->pfn),
345		__entry->pfn,
346		show_reclaim_flags(__entry->reclaim_flags))
347);
348
349TRACE_EVENT(mm_vmscan_lru_shrink_inactive,
350
351	TP_PROTO(int nid,
352		unsigned long nr_scanned, unsigned long nr_reclaimed,
353		struct reclaim_stat *stat, int priority, int file),
354
355	TP_ARGS(nid, nr_scanned, nr_reclaimed, stat, priority, file),
356
357	TP_STRUCT__entry(
358		__field(int, nid)
359		__field(unsigned long, nr_scanned)
360		__field(unsigned long, nr_reclaimed)
361		__field(unsigned long, nr_dirty)
362		__field(unsigned long, nr_writeback)
363		__field(unsigned long, nr_congested)
364		__field(unsigned long, nr_immediate)
365		__field(unsigned int, nr_activate0)
366		__field(unsigned int, nr_activate1)
367		__field(unsigned long, nr_ref_keep)
368		__field(unsigned long, nr_unmap_fail)
369		__field(int, priority)
370		__field(int, reclaim_flags)
371	),
372
373	TP_fast_assign(
374		__entry->nid = nid;
375		__entry->nr_scanned = nr_scanned;
376		__entry->nr_reclaimed = nr_reclaimed;
377		__entry->nr_dirty = stat->nr_dirty;
378		__entry->nr_writeback = stat->nr_writeback;
379		__entry->nr_congested = stat->nr_congested;
380		__entry->nr_immediate = stat->nr_immediate;
381		__entry->nr_activate0 = stat->nr_activate[0];
382		__entry->nr_activate1 = stat->nr_activate[1];
383		__entry->nr_ref_keep = stat->nr_ref_keep;
384		__entry->nr_unmap_fail = stat->nr_unmap_fail;
385		__entry->priority = priority;
386		__entry->reclaim_flags = trace_reclaim_flags(file);
387	),
388
389	TP_printk("nid=%d nr_scanned=%ld nr_reclaimed=%ld nr_dirty=%ld nr_writeback=%ld nr_congested=%ld nr_immediate=%ld nr_activate_anon=%d nr_activate_file=%d nr_ref_keep=%ld nr_unmap_fail=%ld priority=%d flags=%s",
390		__entry->nid,
391		__entry->nr_scanned, __entry->nr_reclaimed,
392		__entry->nr_dirty, __entry->nr_writeback,
393		__entry->nr_congested, __entry->nr_immediate,
394		__entry->nr_activate0, __entry->nr_activate1,
395		__entry->nr_ref_keep, __entry->nr_unmap_fail,
396		__entry->priority,
397		show_reclaim_flags(__entry->reclaim_flags))
398);
399
400TRACE_EVENT(mm_vmscan_lru_shrink_active,
401
402	TP_PROTO(int nid, unsigned long nr_taken,
403		unsigned long nr_active, unsigned long nr_deactivated,
404		unsigned long nr_referenced, int priority, int file),
405
406	TP_ARGS(nid, nr_taken, nr_active, nr_deactivated, nr_referenced, priority, file),
407
408	TP_STRUCT__entry(
409		__field(int, nid)
410		__field(unsigned long, nr_taken)
411		__field(unsigned long, nr_active)
412		__field(unsigned long, nr_deactivated)
413		__field(unsigned long, nr_referenced)
414		__field(int, priority)
415		__field(int, reclaim_flags)
416	),
417
418	TP_fast_assign(
419		__entry->nid = nid;
420		__entry->nr_taken = nr_taken;
421		__entry->nr_active = nr_active;
422		__entry->nr_deactivated = nr_deactivated;
423		__entry->nr_referenced = nr_referenced;
424		__entry->priority = priority;
425		__entry->reclaim_flags = trace_reclaim_flags(file);
426	),
427
428	TP_printk("nid=%d nr_taken=%ld nr_active=%ld nr_deactivated=%ld nr_referenced=%ld priority=%d flags=%s",
429		__entry->nid,
430		__entry->nr_taken,
431		__entry->nr_active, __entry->nr_deactivated, __entry->nr_referenced,
432		__entry->priority,
433		show_reclaim_flags(__entry->reclaim_flags))
434);
435
436TRACE_EVENT(mm_vmscan_node_reclaim_begin,
437
438	TP_PROTO(int nid, int order, gfp_t gfp_flags),
439
440	TP_ARGS(nid, order, gfp_flags),
441
442	TP_STRUCT__entry(
443		__field(int, nid)
444		__field(int, order)
445		__field(unsigned long, gfp_flags)
446	),
447
448	TP_fast_assign(
449		__entry->nid = nid;
450		__entry->order = order;
451		__entry->gfp_flags = (__force unsigned long)gfp_flags;
452	),
453
454	TP_printk("nid=%d order=%d gfp_flags=%s",
455		__entry->nid,
456		__entry->order,
457		show_gfp_flags(__entry->gfp_flags))
458);
459
460DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_node_reclaim_end,
461
462	TP_PROTO(unsigned long nr_reclaimed),
463
464	TP_ARGS(nr_reclaimed)
465);
466
467TRACE_EVENT(mm_vmscan_throttled,
468
469	TP_PROTO(int nid, int usec_timeout, int usec_delayed, int reason),
470
471	TP_ARGS(nid, usec_timeout, usec_delayed, reason),
472
473	TP_STRUCT__entry(
474		__field(int, nid)
475		__field(int, usec_timeout)
476		__field(int, usec_delayed)
477		__field(int, reason)
478	),
479
480	TP_fast_assign(
481		__entry->nid = nid;
482		__entry->usec_timeout = usec_timeout;
483		__entry->usec_delayed = usec_delayed;
484		__entry->reason = 1U << reason;
485	),
486
487	TP_printk("nid=%d usec_timeout=%d usect_delayed=%d reason=%s",
488		__entry->nid,
489		__entry->usec_timeout,
490		__entry->usec_delayed,
491		show_throttle_flags(__entry->reason))
492);
493#endif /* _TRACE_VMSCAN_H */
494
495/* This part must be outside protection */
496#include <trace/define_trace.h>
497