1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/* FS-Cache tracepoints
*
* Copyright (C) 2021 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM fscache
#if !defined(_TRACE_FSCACHE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_FSCACHE_H
#include <linux/fscache.h>
#include <linux/tracepoint.h>
/*
* Define enums for tracing information.
*/
#ifndef __FSCACHE_DECLARE_TRACE_ENUMS_ONCE_ONLY
#define __FSCACHE_DECLARE_TRACE_ENUMS_ONCE_ONLY
enum fscache_cache_trace {
fscache_cache_collision,
fscache_cache_get_acquire,
fscache_cache_new_acquire,
fscache_cache_put_alloc_volume,
fscache_cache_put_cache,
fscache_cache_put_prep_failed,
fscache_cache_put_relinquish,
fscache_cache_put_volume,
};
enum fscache_volume_trace {
fscache_volume_collision,
fscache_volume_get_cookie,
fscache_volume_get_create_work,
fscache_volume_get_hash_collision,
fscache_volume_free,
fscache_volume_new_acquire,
fscache_volume_put_cookie,
fscache_volume_put_create_work,
fscache_volume_put_hash_collision,
fscache_volume_put_relinquish,
fscache_volume_see_create_work,
fscache_volume_see_hash_wake,
fscache_volume_wait_create_work,
};
enum fscache_cookie_trace {
fscache_cookie_collision,
fscache_cookie_discard,
fscache_cookie_failed,
fscache_cookie_get_attach_object,
fscache_cookie_get_end_access,
fscache_cookie_get_hash_collision,
fscache_cookie_get_inval_work,
fscache_cookie_get_lru,
fscache_cookie_get_use_work,
fscache_cookie_new_acquire,
fscache_cookie_put_hash_collision,
fscache_cookie_put_lru,
fscache_cookie_put_object,
fscache_cookie_put_over_queued,
fscache_cookie_put_relinquish,
fscache_cookie_put_withdrawn,
fscache_cookie_put_work,
fscache_cookie_see_active,
fscache_cookie_see_lru_discard,
fscache_cookie_see_lru_do_one,
fscache_cookie_see_relinquish,
fscache_cookie_see_withdraw,
fscache_cookie_see_work,
};
enum fscache_active_trace {
fscache_active_use,
fscache_active_use_modify,
fscache_active_unuse,
};
enum fscache_access_trace {
fscache_access_acquire_volume,
fscache_access_acquire_volume_end,
fscache_access_cache_pin,
fscache_access_cache_unpin,
fscache_access_invalidate_cookie,
fscache_access_invalidate_cookie_end,
fscache_access_io_end,
fscache_access_io_not_live,
fscache_access_io_read,
fscache_access_io_resize,
fscache_access_io_wait,
fscache_access_io_write,
fscache_access_lookup_cookie,
fscache_access_lookup_cookie_end,
fscache_access_lookup_cookie_end_failed,
fscache_access_relinquish_volume,
fscache_access_relinquish_volume_end,
fscache_access_unlive,
};
#endif
/*
* Declare tracing information enums and their string mappings for display.
*/
#define fscache_cache_traces \
EM(fscache_cache_collision, "*COLLIDE*") \
EM(fscache_cache_get_acquire, "GET acq ") \
EM(fscache_cache_new_acquire, "NEW acq ") \
EM(fscache_cache_put_alloc_volume, "PUT alvol") \
EM(fscache_cache_put_cache, "PUT cache") \
EM(fscache_cache_put_prep_failed, "PUT pfail") \
EM(fscache_cache_put_relinquish, "PUT relnq") \
E_(fscache_cache_put_volume, "PUT vol ")
#define fscache_volume_traces \
EM(fscache_volume_collision, "*COLLIDE*") \
EM(fscache_volume_get_cookie, "GET cook ") \
EM(fscache_volume_get_create_work, "GET creat") \
EM(fscache_volume_get_hash_collision, "GET hcoll") \
EM(fscache_volume_free, "FREE ") \
EM(fscache_volume_new_acquire, "NEW acq ") \
EM(fscache_volume_put_cookie, "PUT cook ") \
EM(fscache_volume_put_create_work, "PUT creat") \
EM(fscache_volume_put_hash_collision, "PUT hcoll") \
EM(fscache_volume_put_relinquish, "PUT relnq") \
EM(fscache_volume_see_create_work, "SEE creat") \
EM(fscache_volume_see_hash_wake, "SEE hwake") \
E_(fscache_volume_wait_create_work, "WAIT crea")
#define fscache_cookie_traces \
EM(fscache_cookie_collision, "*COLLIDE*") \
EM(fscache_cookie_discard, "DISCARD ") \
EM(fscache_cookie_failed, "FAILED ") \
EM(fscache_cookie_get_attach_object, "GET attch") \
EM(fscache_cookie_get_hash_collision, "GET hcoll") \
EM(fscache_cookie_get_end_access, "GQ endac") \
EM(fscache_cookie_get_inval_work, "GQ inval") \
EM(fscache_cookie_get_lru, "GET lru ") \
EM(fscache_cookie_get_use_work, "GQ use ") \
EM(fscache_cookie_new_acquire, "NEW acq ") \
EM(fscache_cookie_put_hash_collision, "PUT hcoll") \
EM(fscache_cookie_put_lru, "PUT lru ") \
EM(fscache_cookie_put_object, "PUT obj ") \
EM(fscache_cookie_put_over_queued, "PQ overq") \
EM(fscache_cookie_put_relinquish, "PUT relnq") \
EM(fscache_cookie_put_withdrawn, "PUT wthdn") \
EM(fscache_cookie_put_work, "PQ work ") \
EM(fscache_cookie_see_active, "- activ") \
EM(fscache_cookie_see_lru_discard, "- x-lru") \
EM(fscache_cookie_see_lru_do_one, "- lrudo") \
EM(fscache_cookie_see_relinquish, "- x-rlq") \
EM(fscache_cookie_see_withdraw, "- x-wth") \
E_(fscache_cookie_see_work, "- work ")
#define fscache_active_traces \
EM(fscache_active_use, "USE ") \
EM(fscache_active_use_modify, "USE-m ") \
E_(fscache_active_unuse, "UNUSE ")
#define fscache_access_traces \
EM(fscache_access_acquire_volume, "BEGIN acq_vol") \
EM(fscache_access_acquire_volume_end, "END acq_vol") \
EM(fscache_access_cache_pin, "PIN cache ") \
EM(fscache_access_cache_unpin, "UNPIN cache ") \
EM(fscache_access_invalidate_cookie, "BEGIN inval ") \
EM(fscache_access_invalidate_cookie_end,"END inval ") \
EM(fscache_access_io_end, "END io ") \
EM(fscache_access_io_not_live, "END io_notl") \
EM(fscache_access_io_read, "BEGIN io_read") \
EM(fscache_access_io_resize, "BEGIN io_resz") \
EM(fscache_access_io_wait, "WAIT io ") \
EM(fscache_access_io_write, "BEGIN io_writ") \
EM(fscache_access_lookup_cookie, "BEGIN lookup ") \
EM(fscache_access_lookup_cookie_end, "END lookup ") \
EM(fscache_access_lookup_cookie_end_failed,"END lookupf") \
EM(fscache_access_relinquish_volume, "BEGIN rlq_vol") \
EM(fscache_access_relinquish_volume_end,"END rlq_vol") \
E_(fscache_access_unlive, "END unlive ")
/*
* Export enum symbols via userspace.
*/
#undef EM
#undef E_
#define EM(a, b) TRACE_DEFINE_ENUM(a);
#define E_(a, b) TRACE_DEFINE_ENUM(a);
fscache_cache_traces;
fscache_volume_traces;
fscache_cookie_traces;
fscache_access_traces;
/*
* Now redefine the EM() and E_() macros to map the enums to the strings that
* will be printed in the output.
*/
#undef EM
#undef E_
#define EM(a, b) { a, b },
#define E_(a, b) { a, b }
TRACE_EVENT(fscache_cache,
TP_PROTO(unsigned int cache_debug_id,
int usage,
enum fscache_cache_trace where),
TP_ARGS(cache_debug_id, usage, where),
TP_STRUCT__entry(
__field(unsigned int, cache )
__field(int, usage )
__field(enum fscache_cache_trace, where )
),
TP_fast_assign(
__entry->cache = cache_debug_id;
__entry->usage = usage;
__entry->where = where;
),
TP_printk("C=%08x %s r=%d",
__entry->cache,
__print_symbolic(__entry->where, fscache_cache_traces),
__entry->usage)
);
TRACE_EVENT(fscache_volume,
TP_PROTO(unsigned int volume_debug_id,
int usage,
enum fscache_volume_trace where),
TP_ARGS(volume_debug_id, usage, where),
TP_STRUCT__entry(
__field(unsigned int, volume )
__field(int, usage )
__field(enum fscache_volume_trace, where )
),
TP_fast_assign(
__entry->volume = volume_debug_id;
__entry->usage = usage;
__entry->where = where;
),
TP_printk("V=%08x %s u=%d",
__entry->volume,
__print_symbolic(__entry->where, fscache_volume_traces),
__entry->usage)
);
TRACE_EVENT(fscache_cookie,
TP_PROTO(unsigned int cookie_debug_id,
int ref,
enum fscache_cookie_trace where),
TP_ARGS(cookie_debug_id, ref, where),
TP_STRUCT__entry(
__field(unsigned int, cookie )
__field(int, ref )
__field(enum fscache_cookie_trace, where )
),
TP_fast_assign(
__entry->cookie = cookie_debug_id;
__entry->ref = ref;
__entry->where = where;
),
TP_printk("c=%08x %s r=%d",
__entry->cookie,
__print_symbolic(__entry->where, fscache_cookie_traces),
__entry->ref)
);
TRACE_EVENT(fscache_active,
TP_PROTO(unsigned int cookie_debug_id,
int ref,
int n_active,
int n_accesses,
enum fscache_active_trace why),
TP_ARGS(cookie_debug_id, ref, n_active, n_accesses, why),
TP_STRUCT__entry(
__field(unsigned int, cookie )
__field(int, ref )
__field(int, n_active )
__field(int, n_accesses )
__field(enum fscache_active_trace, why )
),
TP_fast_assign(
__entry->cookie = cookie_debug_id;
__entry->ref = ref;
__entry->n_active = n_active;
__entry->n_accesses = n_accesses;
__entry->why = why;
),
TP_printk("c=%08x %s r=%d a=%d c=%d",
__entry->cookie,
__print_symbolic(__entry->why, fscache_active_traces),
__entry->ref,
__entry->n_accesses,
__entry->n_active)
);
TRACE_EVENT(fscache_access_cache,
TP_PROTO(unsigned int cache_debug_id,
int ref,
int n_accesses,
enum fscache_access_trace why),
TP_ARGS(cache_debug_id, ref, n_accesses, why),
TP_STRUCT__entry(
__field(unsigned int, cache )
__field(int, ref )
__field(int, n_accesses )
__field(enum fscache_access_trace, why )
),
TP_fast_assign(
__entry->cache = cache_debug_id;
__entry->ref = ref;
__entry->n_accesses = n_accesses;
__entry->why = why;
),
TP_printk("C=%08x %s r=%d a=%d",
__entry->cache,
__print_symbolic(__entry->why, fscache_access_traces),
__entry->ref,
__entry->n_accesses)
);
TRACE_EVENT(fscache_access_volume,
TP_PROTO(unsigned int volume_debug_id,
unsigned int cookie_debug_id,
int ref,
int n_accesses,
enum fscache_access_trace why),
TP_ARGS(volume_debug_id, cookie_debug_id, ref, n_accesses, why),
TP_STRUCT__entry(
__field(unsigned int, volume )
__field(unsigned int, cookie )
__field(int, ref )
__field(int, n_accesses )
__field(enum fscache_access_trace, why )
),
TP_fast_assign(
__entry->volume = volume_debug_id;
__entry->cookie = cookie_debug_id;
__entry->ref = ref;
__entry->n_accesses = n_accesses;
__entry->why = why;
),
TP_printk("V=%08x c=%08x %s r=%d a=%d",
__entry->volume,
__entry->cookie,
__print_symbolic(__entry->why, fscache_access_traces),
__entry->ref,
__entry->n_accesses)
);
TRACE_EVENT(fscache_access,
TP_PROTO(unsigned int cookie_debug_id,
int ref,
int n_accesses,
enum fscache_access_trace why),
TP_ARGS(cookie_debug_id, ref, n_accesses, why),
TP_STRUCT__entry(
__field(unsigned int, cookie )
__field(int, ref )
__field(int, n_accesses )
__field(enum fscache_access_trace, why )
),
TP_fast_assign(
__entry->cookie = cookie_debug_id;
__entry->ref = ref;
__entry->n_accesses = n_accesses;
__entry->why = why;
),
TP_printk("c=%08x %s r=%d a=%d",
__entry->cookie,
__print_symbolic(__entry->why, fscache_access_traces),
__entry->ref,
__entry->n_accesses)
);
TRACE_EVENT(fscache_acquire,
TP_PROTO(struct fscache_cookie *cookie),
TP_ARGS(cookie),
TP_STRUCT__entry(
__field(unsigned int, cookie )
__field(unsigned int, volume )
__field(int, v_ref )
__field(int, v_n_cookies )
),
TP_fast_assign(
__entry->cookie = cookie->debug_id;
__entry->volume = cookie->volume->debug_id;
__entry->v_ref = refcount_read(&cookie->volume->ref);
__entry->v_n_cookies = atomic_read(&cookie->volume->n_cookies);
),
TP_printk("c=%08x V=%08x vr=%d vc=%d",
__entry->cookie,
__entry->volume, __entry->v_ref, __entry->v_n_cookies)
);
TRACE_EVENT(fscache_relinquish,
TP_PROTO(struct fscache_cookie *cookie, bool retire),
TP_ARGS(cookie, retire),
TP_STRUCT__entry(
__field(unsigned int, cookie )
__field(unsigned int, volume )
__field(int, ref )
__field(int, n_active )
__field(u8, flags )
__field(bool, retire )
),
TP_fast_assign(
__entry->cookie = cookie->debug_id;
__entry->volume = cookie->volume->debug_id;
__entry->ref = refcount_read(&cookie->ref);
__entry->n_active = atomic_read(&cookie->n_active);
__entry->flags = cookie->flags;
__entry->retire = retire;
),
TP_printk("c=%08x V=%08x r=%d U=%d f=%02x rt=%u",
__entry->cookie, __entry->volume, __entry->ref,
__entry->n_active, __entry->flags, __entry->retire)
);
TRACE_EVENT(fscache_invalidate,
TP_PROTO(struct fscache_cookie *cookie, loff_t new_size),
TP_ARGS(cookie, new_size),
TP_STRUCT__entry(
__field(unsigned int, cookie )
__field(loff_t, new_size )
),
TP_fast_assign(
__entry->cookie = cookie->debug_id;
__entry->new_size = new_size;
),
TP_printk("c=%08x sz=%llx",
__entry->cookie, __entry->new_size)
);
TRACE_EVENT(fscache_resize,
TP_PROTO(struct fscache_cookie *cookie, loff_t new_size),
TP_ARGS(cookie, new_size),
TP_STRUCT__entry(
__field(unsigned int, cookie )
__field(loff_t, old_size )
__field(loff_t, new_size )
),
TP_fast_assign(
__entry->cookie = cookie->debug_id;
__entry->old_size = cookie->object_size;
__entry->new_size = new_size;
),
TP_printk("c=%08x os=%08llx sz=%08llx",
__entry->cookie,
__entry->old_size,
__entry->new_size)
);
#endif /* _TRACE_FSCACHE_H */
/* This part must be outside protection */
#include <trace/define_trace.h>
|
