1 /* SPDX-License-Identifier: GPL-2.0 */
2 #undef TRACE_SYSTEM
3 #define TRACE_SYSTEM kmem
4
5 #if !defined(_TRACE_KMEM_H) || defined(TRACE_HEADER_MULTI_READ)
6 #define _TRACE_KMEM_H
7
8 #include <linux/types.h>
9 #include <linux/tracepoint.h>
10 #include <trace/events/mmflags.h>
11
12 TRACE_EVENT(kmem_cache_alloc,
13
14 TP_PROTO(unsigned long call_site,
15 const void *ptr,
16 struct kmem_cache *s,
17 gfp_t gfp_flags,
18 int node),
19
20 TP_ARGS(call_site, ptr, s, gfp_flags, node),
21
22 TP_STRUCT__entry(
23 __field( unsigned long, call_site )
24 __field( const void *, ptr )
25 __field( size_t, bytes_req )
26 __field( size_t, bytes_alloc )
27 __field( unsigned long, gfp_flags )
28 __field( int, node )
29 __field( bool, accounted )
30 ),
31
32 TP_fast_assign(
33 __entry->call_site = call_site;
34 __entry->ptr = ptr;
35 __entry->bytes_req = s->object_size;
36 __entry->bytes_alloc = s->size;
37 __entry->gfp_flags = (__force unsigned long)gfp_flags;
38 __entry->node = node;
39 __entry->accounted = IS_ENABLED(CONFIG_MEMCG) ?
40 ((gfp_flags & __GFP_ACCOUNT) ||
41 (s->flags & SLAB_ACCOUNT)) : false;
42 ),
43
44 TP_printk("call_site=%pS ptr=%p bytes_req=%zu bytes_alloc=%zu gfp_flags=%s node=%d accounted=%s",
45 (void *)__entry->call_site,
46 __entry->ptr,
47 __entry->bytes_req,
48 __entry->bytes_alloc,
49 show_gfp_flags(__entry->gfp_flags),
50 __entry->node,
51 __entry->accounted ? "true" : "false")
52 );
53
54 TRACE_EVENT(kmalloc,
55
56 TP_PROTO(unsigned long call_site,
57 const void *ptr,
58 size_t bytes_req,
59 size_t bytes_alloc,
60 gfp_t gfp_flags,
61 int node),
62
63 TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags, node),
64
65 TP_STRUCT__entry(
66 __field( unsigned long, call_site )
67 __field( const void *, ptr )
68 __field( size_t, bytes_req )
69 __field( size_t, bytes_alloc )
70 __field( unsigned long, gfp_flags )
71 __field( int, node )
72 ),
73
74 TP_fast_assign(
75 __entry->call_site = call_site;
76 __entry->ptr = ptr;
77 __entry->bytes_req = bytes_req;
78 __entry->bytes_alloc = bytes_alloc;
79 __entry->gfp_flags = (__force unsigned long)gfp_flags;
80 __entry->node = node;
81 ),
82
83 TP_printk("call_site=%pS ptr=%p bytes_req=%zu bytes_alloc=%zu gfp_flags=%s node=%d accounted=%s",
84 (void *)__entry->call_site,
85 __entry->ptr,
86 __entry->bytes_req,
87 __entry->bytes_alloc,
88 show_gfp_flags(__entry->gfp_flags),
89 __entry->node,
90 (IS_ENABLED(CONFIG_MEMCG) &&
91 (__entry->gfp_flags & (__force unsigned long)__GFP_ACCOUNT)) ? "true" : "false")
92 );
93
94 TRACE_EVENT(kfree,
95
96 TP_PROTO(unsigned long call_site, const void *ptr),
97
98 TP_ARGS(call_site, ptr),
99
100 TP_STRUCT__entry(
101 __field( unsigned long, call_site )
102 __field( const void *, ptr )
103 ),
104
105 TP_fast_assign(
106 __entry->call_site = call_site;
107 __entry->ptr = ptr;
108 ),
109
110 TP_printk("call_site=%pS ptr=%p",
111 (void *)__entry->call_site, __entry->ptr)
112 );
113
114 TRACE_EVENT(kmem_cache_free,
115
116 TP_PROTO(unsigned long call_site, const void *ptr, const struct kmem_cache *s),
117
118 TP_ARGS(call_site, ptr, s),
119
120 TP_STRUCT__entry(
121 __field( unsigned long, call_site )
122 __field( const void *, ptr )
123 __string( name, s->name )
124 ),
125
126 TP_fast_assign(
127 __entry->call_site = call_site;
128 __entry->ptr = ptr;
129 __assign_str(name);
130 ),
131
132 TP_printk("call_site=%pS ptr=%p name=%s",
133 (void *)__entry->call_site, __entry->ptr, __get_str(name))
134 );
135
136 TRACE_EVENT(mm_page_free,
137
138 TP_PROTO(struct page *page, unsigned int order),
139
140 TP_ARGS(page, order),
141
142 TP_STRUCT__entry(
143 __field( unsigned long, pfn )
144 __field( unsigned int, order )
145 ),
146
147 TP_fast_assign(
148 __entry->pfn = page_to_pfn(page);
149 __entry->order = order;
150 ),
151
152 TP_printk("page=%p pfn=0x%lx order=%d",
153 pfn_to_page(__entry->pfn),
154 __entry->pfn,
155 __entry->order)
156 );
157
158 TRACE_EVENT(mm_page_free_batched,
159
160 TP_PROTO(struct page *page),
161
162 TP_ARGS(page),
163
164 TP_STRUCT__entry(
165 __field( unsigned long, pfn )
166 ),
167
168 TP_fast_assign(
169 __entry->pfn = page_to_pfn(page);
170 ),
171
172 TP_printk("page=%p pfn=0x%lx order=0",
173 pfn_to_page(__entry->pfn),
174 __entry->pfn)
175 );
176
177 TRACE_EVENT(mm_page_alloc,
178
179 TP_PROTO(struct page *page, unsigned int order,
180 gfp_t gfp_flags, int migratetype),
181
182 TP_ARGS(page, order, gfp_flags, migratetype),
183
184 TP_STRUCT__entry(
185 __field( unsigned long, pfn )
186 __field( unsigned int, order )
187 __field( unsigned long, gfp_flags )
188 __field( int, migratetype )
189 ),
190
191 TP_fast_assign(
192 __entry->pfn = page ? page_to_pfn(page) : -1UL;
193 __entry->order = order;
194 __entry->gfp_flags = (__force unsigned long)gfp_flags;
195 __entry->migratetype = migratetype;
196 ),
197
198 TP_printk("page=%p pfn=0x%lx order=%d migratetype=%d gfp_flags=%s",
199 __entry->pfn != -1UL ? pfn_to_page(__entry->pfn) : NULL,
200 __entry->pfn != -1UL ? __entry->pfn : 0,
201 __entry->order,
202 __entry->migratetype,
203 show_gfp_flags(__entry->gfp_flags))
204 );
205
206 DECLARE_EVENT_CLASS(mm_page,
207
208 TP_PROTO(struct page *page, unsigned int order, int migratetype,
209 int percpu_refill),
210
211 TP_ARGS(page, order, migratetype, percpu_refill),
212
213 TP_STRUCT__entry(
214 __field( unsigned long, pfn )
215 __field( unsigned int, order )
216 __field( int, migratetype )
217 __field( int, percpu_refill )
218 ),
219
220 TP_fast_assign(
221 __entry->pfn = page ? page_to_pfn(page) : -1UL;
222 __entry->order = order;
223 __entry->migratetype = migratetype;
224 __entry->percpu_refill = percpu_refill;
225 ),
226
227 TP_printk("page=%p pfn=0x%lx order=%u migratetype=%d percpu_refill=%d",
228 __entry->pfn != -1UL ? pfn_to_page(__entry->pfn) : NULL,
229 __entry->pfn != -1UL ? __entry->pfn : 0,
230 __entry->order,
231 __entry->migratetype,
232 __entry->percpu_refill)
233 );
234
235 DEFINE_EVENT(mm_page, mm_page_alloc_zone_locked,
236
237 TP_PROTO(struct page *page, unsigned int order, int migratetype,
238 int percpu_refill),
239
240 TP_ARGS(page, order, migratetype, percpu_refill)
241 );
242
243 TRACE_EVENT(mm_page_pcpu_drain,
244
245 TP_PROTO(struct page *page, unsigned int order, int migratetype),
246
247 TP_ARGS(page, order, migratetype),
248
249 TP_STRUCT__entry(
250 __field( unsigned long, pfn )
251 __field( unsigned int, order )
252 __field( int, migratetype )
253 ),
254
255 TP_fast_assign(
256 __entry->pfn = page ? page_to_pfn(page) : -1UL;
257 __entry->order = order;
258 __entry->migratetype = migratetype;
259 ),
260
261 TP_printk("page=%p pfn=0x%lx order=%d migratetype=%d",
262 pfn_to_page(__entry->pfn), __entry->pfn,
263 __entry->order, __entry->migratetype)
264 );
265
266 TRACE_EVENT(mm_page_alloc_extfrag,
267
268 TP_PROTO(struct page *page,
269 int alloc_order, int fallback_order,
270 int alloc_migratetype, int fallback_migratetype),
271
272 TP_ARGS(page,
273 alloc_order, fallback_order,
274 alloc_migratetype, fallback_migratetype),
275
276 TP_STRUCT__entry(
277 __field( unsigned long, pfn )
278 __field( int, alloc_order )
279 __field( int, fallback_order )
280 __field( int, alloc_migratetype )
281 __field( int, fallback_migratetype )
282 __field( int, change_ownership )
283 ),
284
285 TP_fast_assign(
286 __entry->pfn = page_to_pfn(page);
287 __entry->alloc_order = alloc_order;
288 __entry->fallback_order = fallback_order;
289 __entry->alloc_migratetype = alloc_migratetype;
290 __entry->fallback_migratetype = fallback_migratetype;
291 __entry->change_ownership = (alloc_migratetype ==
292 get_pageblock_migratetype(page));
293 ),
294
295 TP_printk("page=%p pfn=0x%lx alloc_order=%d fallback_order=%d pageblock_order=%d alloc_migratetype=%d fallback_migratetype=%d fragmenting=%d change_ownership=%d",
296 pfn_to_page(__entry->pfn),
297 __entry->pfn,
298 __entry->alloc_order,
299 __entry->fallback_order,
300 pageblock_order,
301 __entry->alloc_migratetype,
302 __entry->fallback_migratetype,
303 __entry->fallback_order < pageblock_order,
304 __entry->change_ownership)
305 );
306
307 TRACE_EVENT(mm_alloc_contig_migrate_range_info,
308
309 TP_PROTO(unsigned long start,
310 unsigned long end,
311 unsigned long nr_migrated,
312 unsigned long nr_reclaimed,
313 unsigned long nr_mapped,
314 int migratetype),
315
316 TP_ARGS(start, end, nr_migrated, nr_reclaimed, nr_mapped, migratetype),
317
318 TP_STRUCT__entry(
319 __field(unsigned long, start)
320 __field(unsigned long, end)
321 __field(unsigned long, nr_migrated)
322 __field(unsigned long, nr_reclaimed)
323 __field(unsigned long, nr_mapped)
324 __field(int, migratetype)
325 ),
326
327 TP_fast_assign(
328 __entry->start = start;
329 __entry->end = end;
330 __entry->nr_migrated = nr_migrated;
331 __entry->nr_reclaimed = nr_reclaimed;
332 __entry->nr_mapped = nr_mapped;
333 __entry->migratetype = migratetype;
334 ),
335
336 TP_printk("start=0x%lx end=0x%lx migratetype=%d nr_migrated=%lu nr_reclaimed=%lu nr_mapped=%lu",
337 __entry->start,
338 __entry->end,
339 __entry->migratetype,
340 __entry->nr_migrated,
341 __entry->nr_reclaimed,
342 __entry->nr_mapped)
343 );
344
345 /*
346 * Required for uniquely and securely identifying mm in rss_stat tracepoint.
347 */
348 #ifndef __PTR_TO_HASHVAL
349 static unsigned int __maybe_unused mm_ptr_to_hash(const void *ptr)
350 {
351 int ret;
352 unsigned long hashval;
353
354 ret = ptr_to_hashval(ptr, &hashval);
355 if (ret)
356 return 0;
357
358 /* The hashed value is only 32-bit */
359 return (unsigned int)hashval;
360 }
361 #define __PTR_TO_HASHVAL
362 #endif
363
364 #define TRACE_MM_PAGES \
365 EM(MM_FILEPAGES) \
366 EM(MM_ANONPAGES) \
367 EM(MM_SWAPENTS) \
368 EMe(MM_SHMEMPAGES)
369
370 #undef EM
371 #undef EMe
372
373 #define EM(a) TRACE_DEFINE_ENUM(a);
374 #define EMe(a) TRACE_DEFINE_ENUM(a);
375
376 TRACE_MM_PAGES
377
378 #undef EM
379 #undef EMe
380
381 #define EM(a) { a, #a },
382 #define EMe(a) { a, #a }
383
384 TRACE_EVENT(rss_stat,
385
386 TP_PROTO(struct mm_struct *mm,
387 int member),
388
389 TP_ARGS(mm, member),
390
391 TP_STRUCT__entry(
392 __field(unsigned int, mm_id)
393 __field(unsigned int, curr)
394 __field(int, member)
395 __field(long, size)
396 ),
397
398 TP_fast_assign(
399 __entry->mm_id = mm_ptr_to_hash(mm);
400 __entry->curr = !!(current->mm == mm);
401 __entry->member = member;
402 __entry->size = (percpu_counter_sum_positive(&mm->rss_stat[member])
403 << PAGE_SHIFT);
404 ),
405
406 TP_printk("mm_id=%u curr=%d type=%s size=%ldB",
407 __entry->mm_id,
408 __entry->curr,
409 __print_symbolic(__entry->member, TRACE_MM_PAGES),
410 __entry->size)
411 );
412 #endif /* _TRACE_KMEM_H */
413
414 /* This part must be outside protection */
415 #include <trace/define_trace.h>
416
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