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