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Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6-block.git] / include / trace / events / writeback.h
CommitLineData
b2441318 1/* SPDX-License-Identifier: GPL-2.0 */
455b2864
DC		 2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM writeback
4
5#if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_WRITEBACK_H
7
f479447a 8#include <linux/tracepoint.h>
455b2864
DC		 9#include <linux/backing-dev.h>
10#include <linux/writeback.h>
11
251d6a47
WF		 12#define show_inode_state(state) \
13 __print_flags(state, "|", \
14 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
15 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
16 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
17 {I_NEW, "I_NEW"}, \
18 {I_WILL_FREE, "I_WILL_FREE"}, \
19 {I_FREEING, "I_FREEING"}, \
20 {I_CLEAR, "I_CLEAR"}, \
21 {I_SYNC, "I_SYNC"}, \
0ae45f63
TT		 22 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
23 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
251d6a47
WF		 24 {I_REFERENCED, "I_REFERENCED"} \
25 )
26
91df6089
SRRH		 27/* enums need to be exported to user space */
28#undef EM
29#undef EMe
30#define EM(a,b) TRACE_DEFINE_ENUM(a);
31#define EMe(a,b) TRACE_DEFINE_ENUM(a);
32
b3bba872 33#define WB_WORK_REASON \
91df6089 34 EM( WB_REASON_BACKGROUND, "background") \
726d061f 35 EM( WB_REASON_VMSCAN, "vmscan") \
91df6089
SRRH		 36 EM( WB_REASON_SYNC, "sync") \
37 EM( WB_REASON_PERIODIC, "periodic") \
38 EM( WB_REASON_LAPTOP_TIMER, "laptop_timer") \
39 EM( WB_REASON_FREE_MORE_MEM, "free_more_memory") \
40 EM( WB_REASON_FS_FREE_SPACE, "fs_free_space") \
41 EMe(WB_REASON_FORKER_THREAD, "forker_thread")
42
43WB_WORK_REASON
44
45/*
46 * Now redefine the EM() and EMe() macros to map the enums to the strings
47 * that will be printed in the output.
48 */
49#undef EM
50#undef EMe
51#define EM(a,b) { a, b },
52#define EMe(a,b) { a, b }
b3bba872 53
455b2864
DC		 54struct wb_writeback_work;
55
19343b5b 56DECLARE_EVENT_CLASS(writeback_page_template,
9fb0a7da
TH		 57
58 TP_PROTO(struct page *page, struct address_space *mapping),
59
60 TP_ARGS(page, mapping),
61
62 TP_STRUCT__entry (
63 __array(char, name, 32)
f05499a0 64 __field(ino_t, ino)
9fb0a7da
TH		 65 __field(pgoff_t, index)
66 ),
67
68 TP_fast_assign(
d1a445d3
QC		 69 strscpy_pad(__entry->name,
70 mapping ? dev_name(inode_to_bdi(mapping->host)->dev) : "(unknown)",
71 32);
9fb0a7da
TH		 72 __entry->ino = mapping ? mapping->host->i_ino : 0;
73 __entry->index = page->index;
74 ),
75
76 TP_printk("bdi %s: ino=%lu index=%lu",
77 __entry->name,
40363cf1 78 (unsigned long)__entry->ino,
9fb0a7da
TH		 79 __entry->index
80 )
81);
82
19343b5b
YS		 83DEFINE_EVENT(writeback_page_template, writeback_dirty_page,
84
85 TP_PROTO(struct page *page, struct address_space *mapping),
86
87 TP_ARGS(page, mapping)
88);
89
90DEFINE_EVENT(writeback_page_template, wait_on_page_writeback,
91
92 TP_PROTO(struct page *page, struct address_space *mapping),
93
94 TP_ARGS(page, mapping)
95);
96
9fb0a7da
TH		 97DECLARE_EVENT_CLASS(writeback_dirty_inode_template,
98
99 TP_PROTO(struct inode *inode, int flags),
100
101 TP_ARGS(inode, flags),
102
103 TP_STRUCT__entry (
104 __array(char, name, 32)
f05499a0 105 __field(ino_t, ino)
0ae45f63 106 __field(unsigned long, state)
9fb0a7da
TH		 107 __field(unsigned long, flags)
108 ),
109
110 TP_fast_assign(
de1414a6 111 struct backing_dev_info *bdi = inode_to_bdi(inode);
9fb0a7da
TH		 112
113 /* may be called for files on pseudo FSes w/ unregistered bdi */
d1a445d3
QC		 114 strscpy_pad(__entry->name,
115 bdi->dev ? dev_name(bdi->dev) : "(unknown)", 32);
9fb0a7da 116 __entry->ino = inode->i_ino;
0ae45f63 117 __entry->state = inode->i_state;
9fb0a7da
TH		 118 __entry->flags = flags;
119 ),
120
0ae45f63 121 TP_printk("bdi %s: ino=%lu state=%s flags=%s",
9fb0a7da 122 __entry->name,
40363cf1 123 (unsigned long)__entry->ino,
0ae45f63 124 show_inode_state(__entry->state),
9fb0a7da
TH		 125 show_inode_state(__entry->flags)
126 )
127);
128
0ae45f63
TT		 129DEFINE_EVENT(writeback_dirty_inode_template, writeback_mark_inode_dirty,
130
131 TP_PROTO(struct inode *inode, int flags),
132
133 TP_ARGS(inode, flags)
134);
135
9fb0a7da
TH		 136DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode_start,
137
138 TP_PROTO(struct inode *inode, int flags),
139
140 TP_ARGS(inode, flags)
141);
142
143DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode,
144
145 TP_PROTO(struct inode *inode, int flags),
146
147 TP_ARGS(inode, flags)
148);
149
5634cc2a
TH		 150#ifdef CREATE_TRACE_POINTS
151#ifdef CONFIG_CGROUP_WRITEBACK
152
f05499a0 153static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb)
5634cc2a 154{
67c0496e 155 return cgroup_ino(wb->memcg_css->cgroup);
5634cc2a
TH		 156}
157
f05499a0 158static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc)
5634cc2a
TH		 159{
160 if (wbc->wb)
a664edb3 161 return __trace_wb_assign_cgroup(wbc->wb);
5634cc2a 162 else
f05499a0 163 return 1;
5634cc2a 164}
5634cc2a
TH		 165#else /* CONFIG_CGROUP_WRITEBACK */
166
f05499a0 167static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb)
5634cc2a 168{
f05499a0 169 return 1;
5634cc2a
TH		 170}
171
f05499a0 172static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc)
5634cc2a 173{
f05499a0 174 return 1;
5634cc2a
TH		 175}
176
177#endif /* CONFIG_CGROUP_WRITEBACK */
178#endif /* CREATE_TRACE_POINTS */
179
3a8e9ac8
TH		 180#ifdef CONFIG_CGROUP_WRITEBACK
181TRACE_EVENT(inode_foreign_history,
182
183 TP_PROTO(struct inode *inode, struct writeback_control *wbc,
184 unsigned int history),
185
186 TP_ARGS(inode, wbc, history),
187
188 TP_STRUCT__entry(
189 __array(char, name, 32)
f05499a0
TH		 190 __field(ino_t, ino)
191 __field(ino_t, cgroup_ino)
3a8e9ac8
TH		 192 __field(unsigned int, history)
193 ),
194
195 TP_fast_assign(
196 strncpy(__entry->name, dev_name(inode_to_bdi(inode)->dev), 32);
197 __entry->ino = inode->i_ino;
198 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
199 __entry->history = history;
200 ),
201
f05499a0 202 TP_printk("bdi %s: ino=%lu cgroup_ino=%lu history=0x%x",
3a8e9ac8 203 __entry->name,
40363cf1
QC		 204 (unsigned long)__entry->ino,
205 (unsigned long)__entry->cgroup_ino,
3a8e9ac8
TH		 206 __entry->history
207 )
208);
209
210TRACE_EVENT(inode_switch_wbs,
211
212 TP_PROTO(struct inode *inode, struct bdi_writeback *old_wb,
213 struct bdi_writeback *new_wb),
214
215 TP_ARGS(inode, old_wb, new_wb),
216
217 TP_STRUCT__entry(
218 __array(char, name, 32)
f05499a0
TH		 219 __field(ino_t, ino)
220 __field(ino_t, old_cgroup_ino)
221 __field(ino_t, new_cgroup_ino)
3a8e9ac8
TH		 222 ),
223
224 TP_fast_assign(
225 strncpy(__entry->name, dev_name(old_wb->bdi->dev), 32);
226 __entry->ino = inode->i_ino;
227 __entry->old_cgroup_ino = __trace_wb_assign_cgroup(old_wb);
228 __entry->new_cgroup_ino = __trace_wb_assign_cgroup(new_wb);
229 ),
230
f05499a0 231 TP_printk("bdi %s: ino=%lu old_cgroup_ino=%lu new_cgroup_ino=%lu",
3a8e9ac8 232 __entry->name,
40363cf1
QC		 233 (unsigned long)__entry->ino,
234 (unsigned long)__entry->old_cgroup_ino,
235 (unsigned long)__entry->new_cgroup_ino
3a8e9ac8
TH		 236 )
237);
238
239TRACE_EVENT(track_foreign_dirty,
240
241 TP_PROTO(struct page *page, struct bdi_writeback *wb),
242
243 TP_ARGS(page, wb),
244
245 TP_STRUCT__entry(
246 __array(char, name, 32)
247 __field(u64, bdi_id)
f05499a0 248 __field(ino_t, ino)
3a8e9ac8 249 __field(unsigned int, memcg_id)
f05499a0
TH		 250 __field(ino_t, cgroup_ino)
251 __field(ino_t, page_cgroup_ino)
3a8e9ac8
TH		 252 ),
253
254 TP_fast_assign(
0feacaa2
TH		 255 struct address_space *mapping = page_mapping(page);
256 struct inode *inode = mapping ? mapping->host : NULL;
257
3a8e9ac8
TH		 258 strncpy(__entry->name, dev_name(wb->bdi->dev), 32);
259 __entry->bdi_id = wb->bdi->id;
0feacaa2 260 __entry->ino = inode ? inode->i_ino : 0;
3a8e9ac8
TH		 261 __entry->memcg_id = wb->memcg_css->id;
262 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
67c0496e 263 __entry->page_cgroup_ino = cgroup_ino(page->mem_cgroup->css.cgroup);
3a8e9ac8
TH		 264 ),
265
f05499a0 266 TP_printk("bdi %s[%llu]: ino=%lu memcg_id=%u cgroup_ino=%lu page_cgroup_ino=%lu",
3a8e9ac8
TH		 267 __entry->name,
268 __entry->bdi_id,
40363cf1 269 (unsigned long)__entry->ino,
3a8e9ac8 270 __entry->memcg_id,
40363cf1
QC		 271 (unsigned long)__entry->cgroup_ino,
272 (unsigned long)__entry->page_cgroup_ino
3a8e9ac8
TH		 273 )
274);
275
276TRACE_EVENT(flush_foreign,
277
278 TP_PROTO(struct bdi_writeback *wb, unsigned int frn_bdi_id,
279 unsigned int frn_memcg_id),
280
281 TP_ARGS(wb, frn_bdi_id, frn_memcg_id),
282
283 TP_STRUCT__entry(
284 __array(char, name, 32)
f05499a0 285 __field(ino_t, cgroup_ino)
3a8e9ac8
TH		 286 __field(unsigned int, frn_bdi_id)
287 __field(unsigned int, frn_memcg_id)
288 ),
289
290 TP_fast_assign(
291 strncpy(__entry->name, dev_name(wb->bdi->dev), 32);
292 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
293 __entry->frn_bdi_id = frn_bdi_id;
294 __entry->frn_memcg_id = frn_memcg_id;
295 ),
296
f05499a0 297 TP_printk("bdi %s: cgroup_ino=%lu frn_bdi_id=%u frn_memcg_id=%u",
3a8e9ac8 298 __entry->name,
40363cf1 299 (unsigned long)__entry->cgroup_ino,
3a8e9ac8
TH		 300 __entry->frn_bdi_id,
301 __entry->frn_memcg_id
302 )
303);
304#endif
305
9fb0a7da
TH		 306DECLARE_EVENT_CLASS(writeback_write_inode_template,
307
308 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
309
310 TP_ARGS(inode, wbc),
311
312 TP_STRUCT__entry (
313 __array(char, name, 32)
f05499a0 314 __field(ino_t, ino)
9fb0a7da 315 __field(int, sync_mode)
f05499a0 316 __field(ino_t, cgroup_ino)
9fb0a7da
TH		 317 ),
318
319 TP_fast_assign(
d1a445d3
QC		 320 strscpy_pad(__entry->name,
321 dev_name(inode_to_bdi(inode)->dev), 32);
9fb0a7da
TH		 322 __entry->ino = inode->i_ino;
323 __entry->sync_mode = wbc->sync_mode;
a664edb3 324 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
9fb0a7da
TH		 325 ),
326
f05499a0 327 TP_printk("bdi %s: ino=%lu sync_mode=%d cgroup_ino=%lu",
9fb0a7da 328 __entry->name,
40363cf1 329 (unsigned long)__entry->ino,
5634cc2a 330 __entry->sync_mode,
40363cf1 331 (unsigned long)__entry->cgroup_ino
9fb0a7da
TH		 332 )
333);
334
335DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode_start,
336
337 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
338
339 TP_ARGS(inode, wbc)
340);
341
342DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode,
343
344 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
345
346 TP_ARGS(inode, wbc)
347);
348
455b2864 349DECLARE_EVENT_CLASS(writeback_work_class,
5634cc2a
TH		 350 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work),
351 TP_ARGS(wb, work),
455b2864
DC		 352 TP_STRUCT__entry(
353 __array(char, name, 32)
354 __field(long, nr_pages)
355 __field(dev_t, sb_dev)
356 __field(int, sync_mode)
357 __field(int, for_kupdate)
358 __field(int, range_cyclic)
359 __field(int, for_background)
0e175a18 360 __field(int, reason)
f05499a0 361 __field(ino_t, cgroup_ino)
455b2864
DC		 362 ),
363 TP_fast_assign(
d1a445d3
QC		 364 strscpy_pad(__entry->name,
365 wb->bdi->dev ? dev_name(wb->bdi->dev) :
366 "(unknown)", 32);
455b2864
DC		 367 __entry->nr_pages = work->nr_pages;
368 __entry->sb_dev = work->sb ? work->sb->s_dev : 0;
369 __entry->sync_mode = work->sync_mode;
370 __entry->for_kupdate = work->for_kupdate;
371 __entry->range_cyclic = work->range_cyclic;
372 __entry->for_background = work->for_background;
0e175a18 373 __entry->reason = work->reason;
a664edb3 374 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
455b2864
DC		 375 ),
376 TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d "
f05499a0 377 "kupdate=%d range_cyclic=%d background=%d reason=%s cgroup_ino=%lu",
455b2864
DC		 378 __entry->name,
379 MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev),
380 __entry->nr_pages,
381 __entry->sync_mode,
382 __entry->for_kupdate,
383 __entry->range_cyclic,
0e175a18 384 __entry->for_background,
5634cc2a 385 __print_symbolic(__entry->reason, WB_WORK_REASON),
40363cf1 386 (unsigned long)__entry->cgroup_ino
455b2864
DC		 387 )
388);
389#define DEFINE_WRITEBACK_WORK_EVENT(name) \
390DEFINE_EVENT(writeback_work_class, name, \
5634cc2a
TH		 391 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
392 TP_ARGS(wb, work))
455b2864
DC		 393DEFINE_WRITEBACK_WORK_EVENT(writeback_queue);
394DEFINE_WRITEBACK_WORK_EVENT(writeback_exec);
d46db3d5
WF		 395DEFINE_WRITEBACK_WORK_EVENT(writeback_start);
396DEFINE_WRITEBACK_WORK_EVENT(writeback_written);
397DEFINE_WRITEBACK_WORK_EVENT(writeback_wait);
455b2864
DC		 398
399TRACE_EVENT(writeback_pages_written,
400 TP_PROTO(long pages_written),
401 TP_ARGS(pages_written),
402 TP_STRUCT__entry(
403 __field(long, pages)
404 ),
405 TP_fast_assign(
406 __entry->pages = pages_written;
407 ),
408 TP_printk("%ld", __entry->pages)
409);
410
411DECLARE_EVENT_CLASS(writeback_class,
5634cc2a
TH		 412 TP_PROTO(struct bdi_writeback *wb),
413 TP_ARGS(wb),
455b2864
DC		 414 TP_STRUCT__entry(
415 __array(char, name, 32)
f05499a0 416 __field(ino_t, cgroup_ino)
455b2864
DC		 417 ),
418 TP_fast_assign(
d1a445d3 419 strscpy_pad(__entry->name, dev_name(wb->bdi->dev), 32);
a664edb3 420 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
455b2864 421 ),
f05499a0 422 TP_printk("bdi %s: cgroup_ino=%lu",
5634cc2a 423 __entry->name,
40363cf1 424 (unsigned long)__entry->cgroup_ino
455b2864
DC		 425 )
426);
427#define DEFINE_WRITEBACK_EVENT(name) \
428DEFINE_EVENT(writeback_class, name, \
5634cc2a
TH		 429 TP_PROTO(struct bdi_writeback *wb), \
430 TP_ARGS(wb))
455b2864 431
71927e84 432DEFINE_WRITEBACK_EVENT(writeback_wake_background);
5634cc2a
TH		 433
434TRACE_EVENT(writeback_bdi_register,
435 TP_PROTO(struct backing_dev_info *bdi),
436 TP_ARGS(bdi),
437 TP_STRUCT__entry(
438 __array(char, name, 32)
439 ),
440 TP_fast_assign(
d1a445d3 441 strscpy_pad(__entry->name, dev_name(bdi->dev), 32);
5634cc2a
TH		 442 ),
443 TP_printk("bdi %s",
444 __entry->name
445 )
446);
455b2864 447
028c2dd1
DC		 448DECLARE_EVENT_CLASS(wbc_class,
449 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
450 TP_ARGS(wbc, bdi),
451 TP_STRUCT__entry(
452 __array(char, name, 32)
453 __field(long, nr_to_write)
454 __field(long, pages_skipped)
455 __field(int, sync_mode)
028c2dd1
DC		 456 __field(int, for_kupdate)
457 __field(int, for_background)
458 __field(int, for_reclaim)
459 __field(int, range_cyclic)
028c2dd1
DC		 460 __field(long, range_start)
461 __field(long, range_end)
f05499a0 462 __field(ino_t, cgroup_ino)
028c2dd1
DC		 463 ),
464
465 TP_fast_assign(
d1a445d3 466 strscpy_pad(__entry->name, dev_name(bdi->dev), 32);
028c2dd1
DC		 467 __entry->nr_to_write = wbc->nr_to_write;
468 __entry->pages_skipped = wbc->pages_skipped;
469 __entry->sync_mode = wbc->sync_mode;
470 __entry->for_kupdate = wbc->for_kupdate;
471 __entry->for_background = wbc->for_background;
472 __entry->for_reclaim = wbc->for_reclaim;
473 __entry->range_cyclic = wbc->range_cyclic;
028c2dd1
DC		 474 __entry->range_start = (long)wbc->range_start;
475 __entry->range_end = (long)wbc->range_end;
a664edb3 476 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
028c2dd1
DC		 477 ),
478
479 TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
d46db3d5 480 "bgrd=%d reclm=%d cyclic=%d "
f05499a0 481 "start=0x%lx end=0x%lx cgroup_ino=%lu",
028c2dd1
DC		 482 __entry->name,
483 __entry->nr_to_write,
484 __entry->pages_skipped,
485 __entry->sync_mode,
486 __entry->for_kupdate,
487 __entry->for_background,
488 __entry->for_reclaim,
489 __entry->range_cyclic,
028c2dd1 490 __entry->range_start,
5634cc2a 491 __entry->range_end,
40363cf1 492 (unsigned long)__entry->cgroup_ino
5634cc2a 493 )
028c2dd1
DC		 494)
495
496#define DEFINE_WBC_EVENT(name) \
497DEFINE_EVENT(wbc_class, name, \
498 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
499 TP_ARGS(wbc, bdi))
9e094383 500DEFINE_WBC_EVENT(wbc_writepage);
028c2dd1 501
e84d0a4f
WF		 502TRACE_EVENT(writeback_queue_io,
503 TP_PROTO(struct bdi_writeback *wb,
ad4e38dd 504 struct wb_writeback_work *work,
e84d0a4f 505 int moved),
ad4e38dd 506 TP_ARGS(wb, work, moved),
e84d0a4f
WF		 507 TP_STRUCT__entry(
508 __array(char, name, 32)
509 __field(unsigned long, older)
510 __field(long, age)
511 __field(int, moved)
0e175a18 512 __field(int, reason)
f05499a0 513 __field(ino_t, cgroup_ino)
e84d0a4f
WF		 514 ),
515 TP_fast_assign(
0dc83bd3 516 unsigned long *older_than_this = work->older_than_this;
d1a445d3 517 strscpy_pad(__entry->name, dev_name(wb->bdi->dev), 32);
0dc83bd3 518 __entry->older = older_than_this ? *older_than_this : 0;
e84d0a4f 519 __entry->age = older_than_this ?
0dc83bd3 520 (jiffies - *older_than_this) * 1000 / HZ : -1;
e84d0a4f 521 __entry->moved = moved;
0e175a18 522 __entry->reason = work->reason;
a664edb3 523 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
e84d0a4f 524 ),
f05499a0 525 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s cgroup_ino=%lu",
e84d0a4f
WF		 526 __entry->name,
527 __entry->older, /* older_than_this in jiffies */
528 __entry->age, /* older_than_this in relative milliseconds */
0e175a18 529 __entry->moved,
5634cc2a 530 __print_symbolic(__entry->reason, WB_WORK_REASON),
40363cf1 531 (unsigned long)__entry->cgroup_ino
b3bba872 532 )
e84d0a4f
WF		 533);
534
e1cbe236
WF		 535TRACE_EVENT(global_dirty_state,
536
537 TP_PROTO(unsigned long background_thresh,
538 unsigned long dirty_thresh
539 ),
540
541 TP_ARGS(background_thresh,
542 dirty_thresh
543 ),
544
545 TP_STRUCT__entry(
546 __field(unsigned long, nr_dirty)
547 __field(unsigned long, nr_writeback)
548 __field(unsigned long, nr_unstable)
549 __field(unsigned long, background_thresh)
550 __field(unsigned long, dirty_thresh)
551 __field(unsigned long, dirty_limit)
552 __field(unsigned long, nr_dirtied)
553 __field(unsigned long, nr_written)
554 ),
555
556 TP_fast_assign(
11fb9989
MG		 557 __entry->nr_dirty = global_node_page_state(NR_FILE_DIRTY);
558 __entry->nr_writeback = global_node_page_state(NR_WRITEBACK);
559 __entry->nr_unstable = global_node_page_state(NR_UNSTABLE_NFS);
c4a25635
MG		 560 __entry->nr_dirtied = global_node_page_state(NR_DIRTIED);
561 __entry->nr_written = global_node_page_state(NR_WRITTEN);
e1cbe236
WF		 562 __entry->background_thresh = background_thresh;
563 __entry->dirty_thresh = dirty_thresh;
dcc25ae7 564 __entry->dirty_limit = global_wb_domain.dirty_limit;
e1cbe236
WF		 565 ),
566
567 TP_printk("dirty=%lu writeback=%lu unstable=%lu "
568 "bg_thresh=%lu thresh=%lu limit=%lu "
569 "dirtied=%lu written=%lu",
570 __entry->nr_dirty,
571 __entry->nr_writeback,
572 __entry->nr_unstable,
573 __entry->background_thresh,
574 __entry->dirty_thresh,
575 __entry->dirty_limit,
576 __entry->nr_dirtied,
577 __entry->nr_written
578 )
579);
580
b48c104d
WF		 581#define KBps(x) ((x) << (PAGE_SHIFT - 10))
582
583TRACE_EVENT(bdi_dirty_ratelimit,
584
5634cc2a 585 TP_PROTO(struct bdi_writeback *wb,
b48c104d
WF		 586 unsigned long dirty_rate,
587 unsigned long task_ratelimit),
588
5634cc2a 589 TP_ARGS(wb, dirty_rate, task_ratelimit),
b48c104d
WF		 590
591 TP_STRUCT__entry(
592 __array(char, bdi, 32)
593 __field(unsigned long, write_bw)
594 __field(unsigned long, avg_write_bw)
595 __field(unsigned long, dirty_rate)
596 __field(unsigned long, dirty_ratelimit)
597 __field(unsigned long, task_ratelimit)
598 __field(unsigned long, balanced_dirty_ratelimit)
f05499a0 599 __field(ino_t, cgroup_ino)
b48c104d
WF		 600 ),
601
602 TP_fast_assign(
d1a445d3 603 strscpy_pad(__entry->bdi, dev_name(wb->bdi->dev), 32);
5634cc2a
TH		 604 __entry->write_bw = KBps(wb->write_bandwidth);
605 __entry->avg_write_bw = KBps(wb->avg_write_bandwidth);
b48c104d 606 __entry->dirty_rate = KBps(dirty_rate);
5634cc2a 607 __entry->dirty_ratelimit = KBps(wb->dirty_ratelimit);
b48c104d
WF		 608 __entry->task_ratelimit = KBps(task_ratelimit);
609 __entry->balanced_dirty_ratelimit =
5634cc2a 610 KBps(wb->balanced_dirty_ratelimit);
a664edb3 611 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
b48c104d
WF		 612 ),
613
614 TP_printk("bdi %s: "
615 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
616 "dirty_ratelimit=%lu task_ratelimit=%lu "
f05499a0 617 "balanced_dirty_ratelimit=%lu cgroup_ino=%lu",
b48c104d
WF		 618 __entry->bdi,
619 __entry->write_bw, /* write bandwidth */
620 __entry->avg_write_bw, /* avg write bandwidth */
621 __entry->dirty_rate, /* bdi dirty rate */
622 __entry->dirty_ratelimit, /* base ratelimit */
623 __entry->task_ratelimit, /* ratelimit with position control */
5634cc2a 624 __entry->balanced_dirty_ratelimit, /* the balanced ratelimit */
40363cf1 625 (unsigned long)__entry->cgroup_ino
b48c104d
WF		 626 )
627);
628
ece13ac3
WF		 629TRACE_EVENT(balance_dirty_pages,
630
5634cc2a 631 TP_PROTO(struct bdi_writeback *wb,
ece13ac3
WF		 632 unsigned long thresh,
633 unsigned long bg_thresh,
634 unsigned long dirty,
635 unsigned long bdi_thresh,
636 unsigned long bdi_dirty,
637 unsigned long dirty_ratelimit,
638 unsigned long task_ratelimit,
639 unsigned long dirtied,
83712358 640 unsigned long period,
ece13ac3
WF		 641 long pause,
642 unsigned long start_time),
643
5634cc2a 644 TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
ece13ac3 645 dirty_ratelimit, task_ratelimit,
83712358 646 dirtied, period, pause, start_time),
ece13ac3
WF		 647
648 TP_STRUCT__entry(
649 __array( char, bdi, 32)
650 __field(unsigned long, limit)
651 __field(unsigned long, setpoint)
652 __field(unsigned long, dirty)
653 __field(unsigned long, bdi_setpoint)
654 __field(unsigned long, bdi_dirty)
655 __field(unsigned long, dirty_ratelimit)
656 __field(unsigned long, task_ratelimit)
657 __field(unsigned int, dirtied)
658 __field(unsigned int, dirtied_pause)
659 __field(unsigned long, paused)
660 __field( long, pause)
83712358
WF		 661 __field(unsigned long, period)
662 __field( long, think)
f05499a0 663 __field(ino_t, cgroup_ino)
ece13ac3
WF		 664 ),
665
666 TP_fast_assign(
667 unsigned long freerun = (thresh + bg_thresh) / 2;
d1a445d3 668 strscpy_pad(__entry->bdi, dev_name(wb->bdi->dev), 32);
ece13ac3 669
dcc25ae7
TH		 670 __entry->limit = global_wb_domain.dirty_limit;
671 __entry->setpoint = (global_wb_domain.dirty_limit +
672 freerun) / 2;
ece13ac3
WF		 673 __entry->dirty = dirty;
674 __entry->bdi_setpoint = __entry->setpoint *
675 bdi_thresh / (thresh + 1);
676 __entry->bdi_dirty = bdi_dirty;
677 __entry->dirty_ratelimit = KBps(dirty_ratelimit);
678 __entry->task_ratelimit = KBps(task_ratelimit);
679 __entry->dirtied = dirtied;
680 __entry->dirtied_pause = current->nr_dirtied_pause;
83712358
WF		 681 __entry->think = current->dirty_paused_when == 0 ? 0 :
682 (long)(jiffies - current->dirty_paused_when) * 1000/HZ;
683 __entry->period = period * 1000 / HZ;
ece13ac3
WF		 684 __entry->pause = pause * 1000 / HZ;
685 __entry->paused = (jiffies - start_time) * 1000 / HZ;
a664edb3 686 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
ece13ac3
WF		 687 ),
688
689
690 TP_printk("bdi %s: "
691 "limit=%lu setpoint=%lu dirty=%lu "
692 "bdi_setpoint=%lu bdi_dirty=%lu "
693 "dirty_ratelimit=%lu task_ratelimit=%lu "
694 "dirtied=%u dirtied_pause=%u "
f05499a0 695 "paused=%lu pause=%ld period=%lu think=%ld cgroup_ino=%lu",
ece13ac3
WF		 696 __entry->bdi,
697 __entry->limit,
698 __entry->setpoint,
699 __entry->dirty,
700 __entry->bdi_setpoint,
701 __entry->bdi_dirty,
702 __entry->dirty_ratelimit,
703 __entry->task_ratelimit,
704 __entry->dirtied,
705 __entry->dirtied_pause,
706 __entry->paused, /* ms */
83712358
WF		 707 __entry->pause, /* ms */
708 __entry->period, /* ms */
5634cc2a 709 __entry->think, /* ms */
40363cf1 710 (unsigned long)__entry->cgroup_ino
ece13ac3
WF		 711 )
712);
713
cc1676d9
JK		 714TRACE_EVENT(writeback_sb_inodes_requeue,
715
716 TP_PROTO(struct inode *inode),
717 TP_ARGS(inode),
718
719 TP_STRUCT__entry(
720 __array(char, name, 32)
f05499a0 721 __field(ino_t, ino)
cc1676d9
JK		 722 __field(unsigned long, state)
723 __field(unsigned long, dirtied_when)
f05499a0 724 __field(ino_t, cgroup_ino)
cc1676d9
JK		 725 ),
726
727 TP_fast_assign(
d1a445d3
QC		 728 strscpy_pad(__entry->name,
729 dev_name(inode_to_bdi(inode)->dev), 32);
cc1676d9
JK		 730 __entry->ino = inode->i_ino;
731 __entry->state = inode->i_state;
732 __entry->dirtied_when = inode->dirtied_when;
a664edb3 733 __entry->cgroup_ino = __trace_wb_assign_cgroup(inode_to_wb(inode));
cc1676d9
JK		 734 ),
735
f05499a0 736 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu cgroup_ino=%lu",
cc1676d9 737 __entry->name,
40363cf1 738 (unsigned long)__entry->ino,
cc1676d9
JK		 739 show_inode_state(__entry->state),
740 __entry->dirtied_when,
5634cc2a 741 (jiffies - __entry->dirtied_when) / HZ,
40363cf1 742 (unsigned long)__entry->cgroup_ino
cc1676d9
JK		 743 )
744);
745
52bb9198
MG		 746DECLARE_EVENT_CLASS(writeback_congest_waited_template,
747
748 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
749
750 TP_ARGS(usec_timeout, usec_delayed),
751
752 TP_STRUCT__entry(
753 __field( unsigned int, usec_timeout )
754 __field( unsigned int, usec_delayed )
755 ),
756
757 TP_fast_assign(
758 __entry->usec_timeout = usec_timeout;
759 __entry->usec_delayed = usec_delayed;
760 ),
761
762 TP_printk("usec_timeout=%u usec_delayed=%u",
763 __entry->usec_timeout,
764 __entry->usec_delayed)
765);
766
767DEFINE_EVENT(writeback_congest_waited_template, writeback_congestion_wait,
768
769 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
770
771 TP_ARGS(usec_timeout, usec_delayed)
772);
773
0e093d99
MG		 774DEFINE_EVENT(writeback_congest_waited_template, writeback_wait_iff_congested,
775
776 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
777
778 TP_ARGS(usec_timeout, usec_delayed)
779);
780
251d6a47
WF		 781DECLARE_EVENT_CLASS(writeback_single_inode_template,
782
783 TP_PROTO(struct inode *inode,
784 struct writeback_control *wbc,
785 unsigned long nr_to_write
786 ),
787
788 TP_ARGS(inode, wbc, nr_to_write),
789
790 TP_STRUCT__entry(
791 __array(char, name, 32)
f05499a0 792 __field(ino_t, ino)
251d6a47 793 __field(unsigned long, state)
c8ad6206 794 __field(unsigned long, dirtied_when)
251d6a47
WF		 795 __field(unsigned long, writeback_index)
796 __field(long, nr_to_write)
797 __field(unsigned long, wrote)
f05499a0 798 __field(ino_t, cgroup_ino)
251d6a47
WF		 799 ),
800
801 TP_fast_assign(
d1a445d3
QC		 802 strscpy_pad(__entry->name,
803 dev_name(inode_to_bdi(inode)->dev), 32);
251d6a47
WF		 804 __entry->ino = inode->i_ino;
805 __entry->state = inode->i_state;
c8ad6206 806 __entry->dirtied_when = inode->dirtied_when;
251d6a47
WF		 807 __entry->writeback_index = inode->i_mapping->writeback_index;
808 __entry->nr_to_write = nr_to_write;
809 __entry->wrote = nr_to_write - wbc->nr_to_write;
a664edb3 810 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
251d6a47
WF		 811 ),
812
c8ad6206 813 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
f05499a0 814 "index=%lu to_write=%ld wrote=%lu cgroup_ino=%lu",
251d6a47 815 __entry->name,
40363cf1 816 (unsigned long)__entry->ino,
251d6a47 817 show_inode_state(__entry->state),
c8ad6206
WF		 818 __entry->dirtied_when,
819 (jiffies - __entry->dirtied_when) / HZ,
251d6a47
WF		 820 __entry->writeback_index,
821 __entry->nr_to_write,
5634cc2a 822 __entry->wrote,
40363cf1 823 (unsigned long)__entry->cgroup_ino
251d6a47
WF		 824 )
825);
826
9fb0a7da
TH		 827DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_start,
828 TP_PROTO(struct inode *inode,
829 struct writeback_control *wbc,
830 unsigned long nr_to_write),
831 TP_ARGS(inode, wbc, nr_to_write)
832);
833
251d6a47
WF		 834DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode,
835 TP_PROTO(struct inode *inode,
836 struct writeback_control *wbc,
837 unsigned long nr_to_write),
838 TP_ARGS(inode, wbc, nr_to_write)
839);
840
9a46b04f 841DECLARE_EVENT_CLASS(writeback_inode_template,
0ae45f63
TT		 842 TP_PROTO(struct inode *inode),
843
844 TP_ARGS(inode),
845
846 TP_STRUCT__entry(
847 __field( dev_t, dev )
f05499a0 848 __field( ino_t, ino )
0ae45f63
TT		 849 __field(unsigned long, state )
850 __field( __u16, mode )
851 __field(unsigned long, dirtied_when )
852 ),
853
854 TP_fast_assign(
855 __entry->dev = inode->i_sb->s_dev;
856 __entry->ino = inode->i_ino;
857 __entry->state = inode->i_state;
858 __entry->mode = inode->i_mode;
859 __entry->dirtied_when = inode->dirtied_when;
860 ),
861
862 TP_printk("dev %d,%d ino %lu dirtied %lu state %s mode 0%o",
863 MAJOR(__entry->dev), MINOR(__entry->dev),
40363cf1 864 (unsigned long)__entry->ino, __entry->dirtied_when,
0ae45f63
TT		 865 show_inode_state(__entry->state), __entry->mode)
866);
867
9a46b04f 868DEFINE_EVENT(writeback_inode_template, writeback_lazytime,
0ae45f63
TT		 869 TP_PROTO(struct inode *inode),
870
871 TP_ARGS(inode)
872);
873
9a46b04f 874DEFINE_EVENT(writeback_inode_template, writeback_lazytime_iput,
0ae45f63
TT		 875 TP_PROTO(struct inode *inode),
876
877 TP_ARGS(inode)
878);
879
9a46b04f 880DEFINE_EVENT(writeback_inode_template, writeback_dirty_inode_enqueue,
0ae45f63
TT		 881
882 TP_PROTO(struct inode *inode),
883
884 TP_ARGS(inode)
885);
886
9a46b04f
BF		 887/*
888 * Inode writeback list tracking.
889 */
890
891DEFINE_EVENT(writeback_inode_template, sb_mark_inode_writeback,
892 TP_PROTO(struct inode *inode),
893 TP_ARGS(inode)
894);
895
896DEFINE_EVENT(writeback_inode_template, sb_clear_inode_writeback,
897 TP_PROTO(struct inode *inode),
898 TP_ARGS(inode)
899);
900
455b2864
DC		 901#endif /* _TRACE_WRITEBACK_H */
902
903/* This part must be outside protection */
904#include <trace/define_trace.h>
Linux 6.x block layer and io_uring tree(s)