1#undef TRACE_SYSTEM
2#define TRACE_SYSTEM vmscan
3
4#if !defined(_TRACE_VMSCAN_H) || defined(TRACE_HEADER_MULTI_READ)
5#define _TRACE_VMSCAN_H
6
7#include <linux/types.h>
8#include <linux/tracepoint.h>
9#include <linux/mm.h>
10#include <linux/memcontrol.h>
11#include <trace/events/gfpflags.h>
12
13#define RECLAIM_WB_ANON		0x0001u
14#define RECLAIM_WB_FILE		0x0002u
15#define RECLAIM_WB_MIXED	0x0010u
16#define RECLAIM_WB_SYNC		0x0004u /* Unused, all reclaim async */
17#define RECLAIM_WB_ASYNC	0x0008u
18
19#define show_reclaim_flags(flags)				\
20	(flags) ? __print_flags(flags, "|",			\
21		{RECLAIM_WB_ANON,	"RECLAIM_WB_ANON"},	\
22		{RECLAIM_WB_FILE,	"RECLAIM_WB_FILE"},	\
23		{RECLAIM_WB_MIXED,	"RECLAIM_WB_MIXED"},	\
24		{RECLAIM_WB_SYNC,	"RECLAIM_WB_SYNC"},	\
25		{RECLAIM_WB_ASYNC,	"RECLAIM_WB_ASYNC"}	\
26		) : "RECLAIM_WB_NONE"
27
28#define trace_reclaim_flags(page) ( \
29	(page_is_file_cache(page) ? RECLAIM_WB_FILE : RECLAIM_WB_ANON) | \
30	(RECLAIM_WB_ASYNC) \
31	)
32
33#define trace_shrink_flags(file) \
34	( \
35		(file ? RECLAIM_WB_FILE : RECLAIM_WB_ANON) | \
36		(RECLAIM_WB_ASYNC) \
37	)
38
39TRACE_EVENT(mm_vmscan_kswapd_sleep,
40
41	TP_PROTO(int nid),
42
43	TP_ARGS(nid),
44
45	TP_STRUCT__entry(
46		__field(	int,	nid	)
47	),
48
49	TP_fast_assign(
50		__entry->nid	= nid;
51	),
52
53	TP_printk("nid=%d", __entry->nid)
54);
55
56TRACE_EVENT(mm_vmscan_kswapd_wake,
57
58	TP_PROTO(int nid, int order),
59
60	TP_ARGS(nid, order),
61
62	TP_STRUCT__entry(
63		__field(	int,	nid	)
64		__field(	int,	order	)
65	),
66
67	TP_fast_assign(
68		__entry->nid	= nid;
69		__entry->order	= order;
70	),
71
72	TP_printk("nid=%d order=%d", __entry->nid, __entry->order)
73);
74
75TRACE_EVENT(mm_vmscan_wakeup_kswapd,
76
77	TP_PROTO(int nid, int zid, int order),
78
79	TP_ARGS(nid, zid, order),
80
81	TP_STRUCT__entry(
82		__field(	int,		nid	)
83		__field(	int,		zid	)
84		__field(	int,		order	)
85	),
86
87	TP_fast_assign(
88		__entry->nid		= nid;
89		__entry->zid		= zid;
90		__entry->order		= order;
91	),
92
93	TP_printk("nid=%d zid=%d order=%d",
94		__entry->nid,
95		__entry->zid,
96		__entry->order)
97);
98
99DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_begin_template,
100
101	TP_PROTO(int order, int may_writepage, gfp_t gfp_flags),
102
103	TP_ARGS(order, may_writepage, gfp_flags),
104
105	TP_STRUCT__entry(
106		__field(	int,	order		)
107		__field(	int,	may_writepage	)
108		__field(	gfp_t,	gfp_flags	)
109	),
110
111	TP_fast_assign(
112		__entry->order		= order;
113		__entry->may_writepage	= may_writepage;
114		__entry->gfp_flags	= gfp_flags;
115	),
116
117	TP_printk("order=%d may_writepage=%d gfp_flags=%s",
118		__entry->order,
119		__entry->may_writepage,
120		show_gfp_flags(__entry->gfp_flags))
121);
122
123DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_direct_reclaim_begin,
124
125	TP_PROTO(int order, int may_writepage, gfp_t gfp_flags),
126
127	TP_ARGS(order, may_writepage, gfp_flags)
128);
129
130DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_reclaim_begin,
131
132	TP_PROTO(int order, int may_writepage, gfp_t gfp_flags),
133
134	TP_ARGS(order, may_writepage, gfp_flags)
135);
136
137DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_softlimit_reclaim_begin,
138
139	TP_PROTO(int order, int may_writepage, gfp_t gfp_flags),
140
141	TP_ARGS(order, may_writepage, gfp_flags)
142);
143
144DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_end_template,
145
146	TP_PROTO(unsigned long nr_reclaimed),
147
148	TP_ARGS(nr_reclaimed),
149
150	TP_STRUCT__entry(
151		__field(	unsigned long,	nr_reclaimed	)
152	),
153
154	TP_fast_assign(
155		__entry->nr_reclaimed	= nr_reclaimed;
156	),
157
158	TP_printk("nr_reclaimed=%lu", __entry->nr_reclaimed)
159);
160
161DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_direct_reclaim_end,
162
163	TP_PROTO(unsigned long nr_reclaimed),
164
165	TP_ARGS(nr_reclaimed)
166);
167
168DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_memcg_reclaim_end,
169
170	TP_PROTO(unsigned long nr_reclaimed),
171
172	TP_ARGS(nr_reclaimed)
173);
174
175DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_memcg_softlimit_reclaim_end,
176
177	TP_PROTO(unsigned long nr_reclaimed),
178
179	TP_ARGS(nr_reclaimed)
180);
181
182TRACE_EVENT(mm_shrink_slab_start,
183	TP_PROTO(struct shrinker *shr, struct shrink_control *sc,
184		long nr_objects_to_shrink, unsigned long pgs_scanned,
185		unsigned long lru_pgs, unsigned long cache_items,
186		unsigned long long delta, unsigned long total_scan),
187
188	TP_ARGS(shr, sc, nr_objects_to_shrink, pgs_scanned, lru_pgs,
189		cache_items, delta, total_scan),
190
191	TP_STRUCT__entry(
192		__field(struct shrinker *, shr)
193		__field(void *, shrink)
194		__field(int, nid)
195		__field(long, nr_objects_to_shrink)
196		__field(gfp_t, gfp_flags)
197		__field(unsigned long, pgs_scanned)
198		__field(unsigned long, lru_pgs)
199		__field(unsigned long, cache_items)
200		__field(unsigned long long, delta)
201		__field(unsigned long, total_scan)
202	),
203
204	TP_fast_assign(
205		__entry->shr = shr;
206		__entry->shrink = shr->scan_objects;
207		__entry->nid = sc->nid;
208		__entry->nr_objects_to_shrink = nr_objects_to_shrink;
209		__entry->gfp_flags = sc->gfp_mask;
210		__entry->pgs_scanned = pgs_scanned;
211		__entry->lru_pgs = lru_pgs;
212		__entry->cache_items = cache_items;
213		__entry->delta = delta;
214		__entry->total_scan = total_scan;
215	),
216
217	TP_printk("%pF %p: nid: %d objects to shrink %ld gfp_flags %s pgs_scanned %ld lru_pgs %ld cache items %ld delta %lld total_scan %ld",
218		__entry->shrink,
219		__entry->shr,
220		__entry->nid,
221		__entry->nr_objects_to_shrink,
222		show_gfp_flags(__entry->gfp_flags),
223		__entry->pgs_scanned,
224		__entry->lru_pgs,
225		__entry->cache_items,
226		__entry->delta,
227		__entry->total_scan)
228);
229
230TRACE_EVENT(mm_shrink_slab_end,
231	TP_PROTO(struct shrinker *shr, int nid, int shrinker_retval,
232		long unused_scan_cnt, long new_scan_cnt, long total_scan),
233
234	TP_ARGS(shr, nid, shrinker_retval, unused_scan_cnt, new_scan_cnt,
235		total_scan),
236
237	TP_STRUCT__entry(
238		__field(struct shrinker *, shr)
239		__field(int, nid)
240		__field(void *, shrink)
241		__field(long, unused_scan)
242		__field(long, new_scan)
243		__field(int, retval)
244		__field(long, total_scan)
245	),
246
247	TP_fast_assign(
248		__entry->shr = shr;
249		__entry->nid = nid;
250		__entry->shrink = shr->scan_objects;
251		__entry->unused_scan = unused_scan_cnt;
252		__entry->new_scan = new_scan_cnt;
253		__entry->retval = shrinker_retval;
254		__entry->total_scan = total_scan;
255	),
256
257	TP_printk("%pF %p: nid: %d unused scan count %ld new scan count %ld total_scan %ld last shrinker return val %d",
258		__entry->shrink,
259		__entry->shr,
260		__entry->nid,
261		__entry->unused_scan,
262		__entry->new_scan,
263		__entry->total_scan,
264		__entry->retval)
265);
266
267DECLARE_EVENT_CLASS(mm_vmscan_lru_isolate_template,
268
269	TP_PROTO(int order,
270		unsigned long nr_requested,
271		unsigned long nr_scanned,
272		unsigned long nr_taken,
273		isolate_mode_t isolate_mode,
274		int file),
275
276	TP_ARGS(order, nr_requested, nr_scanned, nr_taken, isolate_mode, file),
277
278	TP_STRUCT__entry(
279		__field(int, order)
280		__field(unsigned long, nr_requested)
281		__field(unsigned long, nr_scanned)
282		__field(unsigned long, nr_taken)
283		__field(isolate_mode_t, isolate_mode)
284		__field(int, file)
285	),
286
287	TP_fast_assign(
288		__entry->order = order;
289		__entry->nr_requested = nr_requested;
290		__entry->nr_scanned = nr_scanned;
291		__entry->nr_taken = nr_taken;
292		__entry->isolate_mode = isolate_mode;
293		__entry->file = file;
294	),
295
296	TP_printk("isolate_mode=%d order=%d nr_requested=%lu nr_scanned=%lu nr_taken=%lu file=%d",
297		__entry->isolate_mode,
298		__entry->order,
299		__entry->nr_requested,
300		__entry->nr_scanned,
301		__entry->nr_taken,
302		__entry->file)
303);
304
305DEFINE_EVENT(mm_vmscan_lru_isolate_template, mm_vmscan_lru_isolate,
306
307	TP_PROTO(int order,
308		unsigned long nr_requested,
309		unsigned long nr_scanned,
310		unsigned long nr_taken,
311		isolate_mode_t isolate_mode,
312		int file),
313
314	TP_ARGS(order, nr_requested, nr_scanned, nr_taken, isolate_mode, file)
315
316);
317
318DEFINE_EVENT(mm_vmscan_lru_isolate_template, mm_vmscan_memcg_isolate,
319
320	TP_PROTO(int order,
321		unsigned long nr_requested,
322		unsigned long nr_scanned,
323		unsigned long nr_taken,
324		isolate_mode_t isolate_mode,
325		int file),
326
327	TP_ARGS(order, nr_requested, nr_scanned, nr_taken, isolate_mode, file)
328
329);
330
331TRACE_EVENT(mm_vmscan_writepage,
332
333	TP_PROTO(struct page *page,
334		int reclaim_flags),
335
336	TP_ARGS(page, reclaim_flags),
337
338	TP_STRUCT__entry(
339		__field(unsigned long, pfn)
340		__field(int, reclaim_flags)
341	),
342
343	TP_fast_assign(
344		__entry->pfn = page_to_pfn(page);
345		__entry->reclaim_flags = reclaim_flags;
346	),
347
348	TP_printk("page=%p pfn=%lu flags=%s",
349		pfn_to_page(__entry->pfn),
350		__entry->pfn,
351		show_reclaim_flags(__entry->reclaim_flags))
352);
353
354TRACE_EVENT(mm_vmscan_lru_shrink_inactive,
355
356	TP_PROTO(int nid, int zid,
357			unsigned long nr_scanned, unsigned long nr_reclaimed,
358			int priority, int reclaim_flags),
359
360	TP_ARGS(nid, zid, nr_scanned, nr_reclaimed, priority, reclaim_flags),
361
362	TP_STRUCT__entry(
363		__field(int, nid)
364		__field(int, zid)
365		__field(unsigned long, nr_scanned)
366		__field(unsigned long, nr_reclaimed)
367		__field(int, priority)
368		__field(int, reclaim_flags)
369	),
370
371	TP_fast_assign(
372		__entry->nid = nid;
373		__entry->zid = zid;
374		__entry->nr_scanned = nr_scanned;
375		__entry->nr_reclaimed = nr_reclaimed;
376		__entry->priority = priority;
377		__entry->reclaim_flags = reclaim_flags;
378	),
379
380	TP_printk("nid=%d zid=%d nr_scanned=%ld nr_reclaimed=%ld priority=%d flags=%s",
381		__entry->nid, __entry->zid,
382		__entry->nr_scanned, __entry->nr_reclaimed,
383		__entry->priority,
384		show_reclaim_flags(__entry->reclaim_flags))
385);
386
387#endif /* _TRACE_VMSCAN_H */
388
389/* This part must be outside protection */
390#include <trace/define_trace.h>
391