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[lttng-modules.git] / instrumentation / events / lttng-module / writeback.h
1 #undef TRACE_SYSTEM
2 #define TRACE_SYSTEM writeback
3
4 #if !defined(LTTNG_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
5 #define LTTNG_TRACE_WRITEBACK_H
6
7 #include "../../../probes/lttng-tracepoint-event.h"
8 #include <linux/tracepoint.h>
9 #include <linux/backing-dev.h>
10 #include <linux/writeback.h>
11 #include <linux/version.h>
12
13 #ifndef _TRACE_WRITEBACK_DEF_
14 #define _TRACE_WRITEBACK_DEF_
15
16 #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0))
17 static inline struct backing_dev_info *inode_to_bdi(struct inode *inode)
18 {
19 struct super_block *sb = inode->i_sb;
20
21 if (strcmp(sb->s_type->name, "bdev") == 0)
22 return inode->i_mapping->backing_dev_info;
23
24 return sb->s_bdi;
25 }
26 #endif /* #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0)) */
27
28 #endif
29
30 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
31 #define show_inode_state(state) \
32 __print_flags(state, "|", \
33 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
34 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
35 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
36 {I_NEW, "I_NEW"}, \
37 {I_WILL_FREE, "I_WILL_FREE"}, \
38 {I_FREEING, "I_FREEING"}, \
39 {I_CLEAR, "I_CLEAR"}, \
40 {I_SYNC, "I_SYNC"}, \
41 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
42 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
43 {I_REFERENCED, "I_REFERENCED"} \
44 )
45 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
46 #define show_inode_state(state) \
47 __print_flags(state, "|", \
48 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
49 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
50 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
51 {I_NEW, "I_NEW"}, \
52 {I_WILL_FREE, "I_WILL_FREE"}, \
53 {I_FREEING, "I_FREEING"}, \
54 {I_CLEAR, "I_CLEAR"}, \
55 {I_SYNC, "I_SYNC"}, \
56 {I_REFERENCED, "I_REFERENCED"} \
57 )
58 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
59
60 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
61
62 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
63 TP_PROTO(struct page *page, struct address_space *mapping),
64 TP_ARGS(page, mapping),
65 TP_STRUCT__entry (
66 __array_text(char, name, 32)
67 __field(unsigned long, ino)
68 __field(pgoff_t, index)
69 ),
70 TP_fast_assign(
71 tp_memcpy(name,
72 mapping ? dev_name(inode_to_bdi(mapping->host)->dev) : "(unknown)", 32)
73 tp_assign(ino, mapping ? mapping->host->i_ino : 0)
74 tp_assign(index, page->index)
75 ),
76 TP_printk("bdi %s: ino=%lu index=%lu",
77 __entry->name,
78 __entry->ino,
79 __entry->index
80 )
81 )
82
83 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
84 TP_PROTO(struct inode *inode, int flags),
85 TP_ARGS(inode, flags),
86 TP_STRUCT__entry (
87 __array_text(char, name, 32)
88 __field(unsigned long, ino)
89 __field(unsigned long, state)
90 __field(unsigned long, flags)
91 ),
92 TP_fast_assign(
93 /* may be called for files on pseudo FSes w/ unregistered bdi */
94 tp_memcpy(name,
95 inode_to_bdi(inode)->dev ?
96 dev_name(inode_to_bdi(inode)->dev) : "(unknown)", 32)
97 tp_assign(ino, inode->i_ino)
98 tp_assign(state, inode->i_state)
99 tp_assign(flags, flags)
100 ),
101 TP_printk("bdi %s: ino=%lu flags=%s",
102 __entry->name,
103 __entry->ino,
104 show_inode_state(__entry->flags)
105 )
106 )
107 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
108 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
109 TP_PROTO(struct inode *inode, int flags), \
110 TP_ARGS(inode, flags))
111 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
112 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
113 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty)
114
115 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
116 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
117 TP_ARGS(inode, wbc),
118 TP_STRUCT__entry (
119 __array_text(char, name, 32)
120 __field(unsigned long, ino)
121 __field(int, sync_mode)
122 ),
123 TP_fast_assign(
124 tp_memcpy(name,
125 dev_name(inode_to_bdi(inode)->dev), 32)
126 tp_assign(ino, inode->i_ino)
127 tp_assign(sync_mode, wbc->sync_mode)
128 ),
129 TP_printk("bdi %s: ino=%lu sync_mode=%d",
130 __entry->name,
131 __entry->ino,
132 __entry->sync_mode
133 )
134 )
135
136 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
137 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
138 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
139 TP_ARGS(inode, wbc))
140 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
141 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
142
143 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
144
145 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
146 TP_PROTO(struct page *page, struct address_space *mapping),
147 TP_ARGS(page, mapping),
148 TP_STRUCT__entry (
149 __array_text(char, name, 32)
150 __field(unsigned long, ino)
151 __field(pgoff_t, index)
152 ),
153 TP_fast_assign(
154 tp_memcpy(name,
155 mapping ? dev_name(mapping->backing_dev_info->dev) : "(unknown)", 32)
156 tp_assign(ino, mapping ? mapping->host->i_ino : 0)
157 tp_assign(index, page->index)
158 ),
159 TP_printk("bdi %s: ino=%lu index=%lu",
160 __entry->name,
161 __entry->ino,
162 __entry->index
163 )
164 )
165
166 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
167 TP_PROTO(struct inode *inode, int flags),
168 TP_ARGS(inode, flags),
169 TP_STRUCT__entry (
170 __array_text(char, name, 32)
171 __field(unsigned long, ino)
172 __field(unsigned long, flags)
173 ),
174 TP_fast_assign(
175 /* may be called for files on pseudo FSes w/ unregistered bdi */
176 tp_memcpy(name,
177 inode->i_mapping->backing_dev_info->dev ?
178 dev_name(inode->i_mapping->backing_dev_info->dev) : "(unknown)", 32)
179 tp_assign(ino, inode->i_ino)
180 tp_assign(flags, flags)
181 ),
182 TP_printk("bdi %s: ino=%lu flags=%s",
183 __entry->name,
184 __entry->ino,
185 show_inode_state(__entry->flags)
186 )
187 )
188 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
189 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
190 TP_PROTO(struct inode *inode, int flags), \
191 TP_ARGS(inode, flags))
192 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
193 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
194
195 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
196 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
197 TP_ARGS(inode, wbc),
198 TP_STRUCT__entry (
199 __array_text(char, name, 32)
200 __field(unsigned long, ino)
201 __field(int, sync_mode)
202 ),
203 TP_fast_assign(
204 tp_memcpy(name,
205 dev_name(inode->i_mapping->backing_dev_info->dev), 32)
206 tp_assign(ino, inode->i_ino)
207 tp_assign(sync_mode, wbc->sync_mode)
208 ),
209 TP_printk("bdi %s: ino=%lu sync_mode=%d",
210 __entry->name,
211 __entry->ino,
212 __entry->sync_mode
213 )
214 )
215
216 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
217 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
218 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
219 TP_ARGS(inode, wbc))
220 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
221 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
222
223 #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */
224
225 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
226
227 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
228 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
229 TP_ARGS(bdi, work),
230 TP_STRUCT__entry(
231 __array_text(char, name, 32)
232 ),
233 TP_fast_assign(
234 tp_memcpy(name, bdi->dev ? dev_name(bdi->dev) :
235 "(unknown)", 32)
236 ),
237 TP_printk("bdi %s",
238 __entry->name
239 )
240 )
241
242 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
243
244 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
245 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
246 TP_ARGS(bdi, work),
247 TP_STRUCT__entry(
248 __array_text(char, name, 32)
249 ),
250 TP_fast_assign(
251 tp_memcpy(name, dev_name(bdi->dev ? bdi->dev :
252 default_backing_dev_info.dev), 32)
253 ),
254 TP_printk("bdi %s",
255 __entry->name
256 )
257 )
258
259 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
260
261 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
262 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
263 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
264 TP_ARGS(bdi, work))
265 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread)
266 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue)
267 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec)
268 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
269 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start)
270 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written)
271 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait)
272 #endif
273
274 LTTNG_TRACEPOINT_EVENT(writeback_pages_written,
275 TP_PROTO(long pages_written),
276 TP_ARGS(pages_written),
277 TP_STRUCT__entry(
278 __field(long, pages)
279 ),
280 TP_fast_assign(
281 tp_assign(pages, pages_written)
282 ),
283 TP_printk("%ld", __entry->pages)
284 )
285
286 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
287 TP_PROTO(struct backing_dev_info *bdi),
288 TP_ARGS(bdi),
289 TP_STRUCT__entry(
290 __array_text(char, name, 32)
291 ),
292 TP_fast_assign(
293 tp_memcpy(name, dev_name(bdi->dev), 32)
294 ),
295 TP_printk("bdi %s",
296 __entry->name
297 )
298 )
299 #undef DEFINE_WRITEBACK_EVENT
300 #define DEFINE_WRITEBACK_EVENT(name) \
301 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
302 TP_PROTO(struct backing_dev_info *bdi), \
303 TP_ARGS(bdi))
304
305 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
306 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
307 TP_PROTO(struct backing_dev_info *bdi), \
308 TP_ARGS(bdi))
309
310 DEFINE_WRITEBACK_EVENT(writeback_nowork)
311 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
312 DEFINE_WRITEBACK_EVENT(writeback_wake_background)
313 #endif
314 DEFINE_WRITEBACK_EVENT(writeback_wake_thread)
315 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread)
316 DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
317 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister)
318 DEFINE_WRITEBACK_EVENT(writeback_thread_start)
319 DEFINE_WRITEBACK_EVENT(writeback_thread_stop)
320 #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
321 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start)
322 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait)
323
324 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written,
325
326 writeback_balance_dirty_written,
327
328 TP_PROTO(struct backing_dev_info *bdi, int written),
329
330 TP_ARGS(bdi, written),
331
332 TP_STRUCT__entry(
333 __array(char, name, 32)
334 __field(int, written)
335 ),
336
337 TP_fast_assign(
338 tp_memcpy(name, dev_name(bdi->dev), 32)
339 tp_assign(written, written)
340 ),
341
342 TP_printk("bdi %s written %d",
343 __entry->name,
344 __entry->written
345 )
346 )
347 #endif
348
349 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class,
350 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
351 TP_ARGS(wbc, bdi),
352 TP_STRUCT__entry(
353 __array_text(char, name, 32)
354 __field(long, nr_to_write)
355 __field(long, pages_skipped)
356 __field(int, sync_mode)
357 __field(int, for_kupdate)
358 __field(int, for_background)
359 __field(int, for_reclaim)
360 __field(int, range_cyclic)
361 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
362 __field(int, more_io)
363 __field(unsigned long, older_than_this)
364 #endif
365 __field(long, range_start)
366 __field(long, range_end)
367 ),
368
369 TP_fast_assign(
370 tp_memcpy(name, dev_name(bdi->dev), 32)
371 tp_assign(nr_to_write, wbc->nr_to_write)
372 tp_assign(pages_skipped, wbc->pages_skipped)
373 tp_assign(sync_mode, wbc->sync_mode)
374 tp_assign(for_kupdate, wbc->for_kupdate)
375 tp_assign(for_background, wbc->for_background)
376 tp_assign(for_reclaim, wbc->for_reclaim)
377 tp_assign(range_cyclic, wbc->range_cyclic)
378 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
379 tp_assign(more_io, wbc->more_io)
380 tp_assign(older_than_this, wbc->older_than_this ?
381 *wbc->older_than_this : 0)
382 #endif
383 tp_assign(range_start, (long)wbc->range_start)
384 tp_assign(range_end, (long)wbc->range_end)
385 ),
386
387 TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
388 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
389 "bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx "
390 #else
391 "bgrd=%d reclm=%d cyclic=%d "
392 #endif
393 "start=0x%lx end=0x%lx",
394 __entry->name,
395 __entry->nr_to_write,
396 __entry->pages_skipped,
397 __entry->sync_mode,
398 __entry->for_kupdate,
399 __entry->for_background,
400 __entry->for_reclaim,
401 __entry->range_cyclic,
402 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
403 __entry->more_io,
404 __entry->older_than_this,
405 #endif
406 __entry->range_start,
407 __entry->range_end)
408 )
409
410 #undef DEFINE_WBC_EVENT
411 #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
412 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
413 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
414 TP_ARGS(wbc, bdi))
415 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
416 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start, writeback_wbc_writeback_start)
417 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written, writeback_wbc_writeback_written)
418 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait, writeback_wbc_writeback_wait)
419 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start)
420 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written)
421 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait)
422 #endif
423 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage)
424
425 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
426 LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
427 TP_PROTO(struct bdi_writeback *wb,
428 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
429 struct wb_writeback_work *work,
430 #else
431 unsigned long *older_than_this,
432 #endif
433 int moved),
434 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
435 TP_ARGS(wb, work, moved),
436 #else
437 TP_ARGS(wb, older_than_this, moved),
438 #endif
439 TP_STRUCT__entry(
440 __array(char, name, 32)
441 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
442 #else
443 __field(unsigned long, older)
444 __field(long, age)
445 #endif
446 __field(int, moved)
447 ),
448 TP_fast_assign(
449 tp_memcpy(name, dev_name(wb->bdi->dev), 32)
450 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
451 #else
452 tp_assign(older, older_than_this ? *older_than_this : 0)
453 tp_assign(age, older_than_this ?
454 (jiffies - *older_than_this) * 1000 / HZ : -1)
455 #endif
456 tp_assign(moved, moved)
457 ),
458 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
459 TP_printk("bdi %s: enqueue=%d",
460 __entry->name,
461 __entry->moved,
462 )
463 #else
464 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d",
465 __entry->name,
466 __entry->older, /* older_than_this in jiffies */
467 __entry->age, /* older_than_this in relative milliseconds */
468 __entry->moved
469 )
470 #endif
471 )
472
473 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
474
475 writeback_global_dirty_state,
476
477 TP_PROTO(unsigned long background_thresh,
478 unsigned long dirty_thresh
479 ),
480
481 TP_ARGS(background_thresh,
482 dirty_thresh
483 ),
484
485 TP_STRUCT__entry(
486 __field(unsigned long, nr_dirty)
487 __field(unsigned long, nr_writeback)
488 __field(unsigned long, nr_unstable)
489 __field(unsigned long, background_thresh)
490 __field(unsigned long, dirty_thresh)
491 __field(unsigned long, dirty_limit)
492 __field(unsigned long, nr_dirtied)
493 __field(unsigned long, nr_written)
494 ),
495
496 TP_fast_assign(
497 tp_assign(nr_dirty, global_page_state(NR_FILE_DIRTY))
498 tp_assign(nr_writeback, global_page_state(NR_WRITEBACK))
499 tp_assign(nr_unstable, global_page_state(NR_UNSTABLE_NFS))
500 tp_assign(nr_dirtied, global_page_state(NR_DIRTIED))
501 tp_assign(nr_written, global_page_state(NR_WRITTEN))
502 tp_assign(background_thresh, background_thresh)
503 tp_assign(dirty_thresh, dirty_thresh)
504 tp_assign(dirty_limit, global_dirty_limit)
505 ),
506
507 TP_printk("dirty=%lu writeback=%lu unstable=%lu "
508 "bg_thresh=%lu thresh=%lu limit=%lu "
509 "dirtied=%lu written=%lu",
510 __entry->nr_dirty,
511 __entry->nr_writeback,
512 __entry->nr_unstable,
513 __entry->background_thresh,
514 __entry->dirty_thresh,
515 __entry->dirty_limit,
516 __entry->nr_dirtied,
517 __entry->nr_written
518 )
519 )
520 #endif
521
522 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
523
524 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
525
526 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
527
528 writeback_bdi_dirty_ratelimit,
529
530 TP_PROTO(struct backing_dev_info *bdi,
531 unsigned long dirty_rate,
532 unsigned long task_ratelimit),
533
534 TP_ARGS(bdi, dirty_rate, task_ratelimit),
535
536 TP_STRUCT__entry(
537 __array(char, bdi, 32)
538 __field(unsigned long, write_bw)
539 __field(unsigned long, avg_write_bw)
540 __field(unsigned long, dirty_rate)
541 __field(unsigned long, dirty_ratelimit)
542 __field(unsigned long, task_ratelimit)
543 __field(unsigned long, balanced_dirty_ratelimit)
544 ),
545
546 TP_fast_assign(
547 tp_memcpy(bdi, dev_name(bdi->dev), 32)
548 tp_assign(write_bw, KBps(bdi->write_bandwidth))
549 tp_assign(avg_write_bw, KBps(bdi->avg_write_bandwidth))
550 tp_assign(dirty_rate, KBps(dirty_rate))
551 tp_assign(dirty_ratelimit, KBps(bdi->dirty_ratelimit))
552 tp_assign(task_ratelimit, KBps(task_ratelimit))
553 tp_assign(balanced_dirty_ratelimit,
554 KBps(bdi->balanced_dirty_ratelimit))
555 ),
556
557 TP_printk("bdi %s: "
558 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
559 "dirty_ratelimit=%lu task_ratelimit=%lu "
560 "balanced_dirty_ratelimit=%lu",
561 __entry->bdi,
562 __entry->write_bw, /* write bandwidth */
563 __entry->avg_write_bw, /* avg write bandwidth */
564 __entry->dirty_rate, /* bdi dirty rate */
565 __entry->dirty_ratelimit, /* base ratelimit */
566 __entry->task_ratelimit, /* ratelimit with position control */
567 __entry->balanced_dirty_ratelimit /* the balanced ratelimit */
568 )
569 )
570
571 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
572
573 writeback_balance_dirty_pages,
574
575 TP_PROTO(struct backing_dev_info *bdi,
576 unsigned long thresh,
577 unsigned long bg_thresh,
578 unsigned long dirty,
579 unsigned long bdi_thresh,
580 unsigned long bdi_dirty,
581 unsigned long dirty_ratelimit,
582 unsigned long task_ratelimit,
583 unsigned long dirtied,
584 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
585 unsigned long period,
586 #endif
587 long pause,
588 unsigned long start_time),
589
590 TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
591 dirty_ratelimit, task_ratelimit,
592 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
593 dirtied, period, pause, start_time),
594 #else
595 dirtied, pause, start_time),
596 #endif
597 TP_STRUCT__entry(
598 __array( char, bdi, 32)
599 __field(unsigned long, limit)
600 __field(unsigned long, setpoint)
601 __field(unsigned long, dirty)
602 __field(unsigned long, bdi_setpoint)
603 __field(unsigned long, bdi_dirty)
604 __field(unsigned long, dirty_ratelimit)
605 __field(unsigned long, task_ratelimit)
606 __field(unsigned int, dirtied)
607 __field(unsigned int, dirtied_pause)
608 __field(unsigned long, paused)
609 __field( long, pause)
610 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
611 __field(unsigned long, period)
612 __field( long, think)
613 #endif
614 ),
615
616 TP_fast_assign(
617 tp_memcpy(bdi, dev_name(bdi->dev), 32)
618 tp_assign(limit, global_dirty_limit)
619 tp_assign(setpoint,
620 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
621 tp_assign(dirty, dirty)
622 tp_assign(bdi_setpoint,
623 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
624 bdi_thresh / (thresh + 1))
625 tp_assign(bdi_dirty, bdi_dirty)
626 tp_assign(dirty_ratelimit, KBps(dirty_ratelimit))
627 tp_assign(task_ratelimit, KBps(task_ratelimit))
628 tp_assign(dirtied, dirtied)
629 tp_assign(dirtied_pause, current->nr_dirtied_pause)
630 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
631 tp_assign(think, current->dirty_paused_when == 0 ? 0 :
632 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
633 tp_assign(period, period * 1000 / HZ)
634 #endif
635 tp_assign(pause, pause * 1000 / HZ)
636 tp_assign(paused, (jiffies - start_time) * 1000 / HZ)
637 ),
638
639
640 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
641 TP_printk("bdi %s: "
642 "limit=%lu setpoint=%lu dirty=%lu "
643 "bdi_setpoint=%lu bdi_dirty=%lu "
644 "dirty_ratelimit=%lu task_ratelimit=%lu "
645 "dirtied=%u dirtied_pause=%u "
646 "paused=%lu pause=%ld period=%lu think=%ld",
647 __entry->bdi,
648 __entry->limit,
649 __entry->setpoint,
650 __entry->dirty,
651 __entry->bdi_setpoint,
652 __entry->bdi_dirty,
653 __entry->dirty_ratelimit,
654 __entry->task_ratelimit,
655 __entry->dirtied,
656 __entry->dirtied_pause,
657 __entry->paused, /* ms */
658 __entry->pause, /* ms */
659 __entry->period, /* ms */
660 __entry->think /* ms */
661 )
662 #else
663 TP_printk("bdi %s: "
664 "limit=%lu setpoint=%lu dirty=%lu "
665 "bdi_setpoint=%lu bdi_dirty=%lu "
666 "dirty_ratelimit=%lu task_ratelimit=%lu "
667 "dirtied=%u dirtied_pause=%u "
668 "paused=%lu pause=%ld",
669 __entry->bdi,
670 __entry->limit,
671 __entry->setpoint,
672 __entry->dirty,
673 __entry->bdi_setpoint,
674 __entry->bdi_dirty,
675 __entry->dirty_ratelimit,
676 __entry->task_ratelimit,
677 __entry->dirtied,
678 __entry->dirtied_pause,
679 __entry->paused, /* ms */
680 __entry->pause /* ms */
681 )
682 #endif
683 )
684 #endif
685
686 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
687 LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue,
688
689 TP_PROTO(struct inode *inode),
690 TP_ARGS(inode),
691
692 TP_STRUCT__entry(
693 __array_text(char, name, 32)
694 __field(unsigned long, ino)
695 __field(unsigned long, state)
696 __field(unsigned long, dirtied_when)
697 ),
698
699 TP_fast_assign(
700 tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32)
701 tp_assign(ino, inode->i_ino)
702 tp_assign(state, inode->i_state)
703 tp_assign(dirtied_when, inode->dirtied_when)
704 ),
705
706 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu",
707 __entry->name,
708 __entry->ino,
709 show_inode_state(__entry->state),
710 __entry->dirtied_when,
711 (jiffies - __entry->dirtied_when) / HZ
712 )
713 )
714 #endif
715
716 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
717 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template,
718
719 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
720
721 TP_ARGS(usec_timeout, usec_delayed),
722
723 TP_STRUCT__entry(
724 __field( unsigned int, usec_timeout )
725 __field( unsigned int, usec_delayed )
726 ),
727
728 TP_fast_assign(
729 tp_assign(usec_timeout, usec_timeout)
730 tp_assign(usec_delayed, usec_delayed)
731 ),
732
733 TP_printk("usec_timeout=%u usec_delayed=%u",
734 __entry->usec_timeout,
735 __entry->usec_delayed)
736 )
737
738 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_congestion_wait,
739
740 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
741
742 TP_ARGS(usec_timeout, usec_delayed)
743 )
744
745 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_wait_iff_congested,
746
747 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
748
749 TP_ARGS(usec_timeout, usec_delayed)
750 )
751 #endif
752
753 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
754 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template,
755
756 TP_PROTO(struct inode *inode,
757 struct writeback_control *wbc,
758 unsigned long nr_to_write
759 ),
760
761 TP_ARGS(inode, wbc, nr_to_write),
762
763 TP_STRUCT__entry(
764 __array_text(char, name, 32)
765 __field(unsigned long, ino)
766 __field(unsigned long, state)
767 __field(unsigned long, dirtied_when)
768 __field(unsigned long, writeback_index)
769 __field(long, nr_to_write)
770 __field(unsigned long, wrote)
771 ),
772
773 TP_fast_assign(
774 tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32)
775 tp_assign(ino, inode->i_ino)
776 tp_assign(state, inode->i_state)
777 tp_assign(dirtied_when, inode->dirtied_when)
778 tp_assign(writeback_index, inode->i_mapping->writeback_index)
779 tp_assign(nr_to_write, nr_to_write)
780 tp_assign(wrote, nr_to_write - wbc->nr_to_write)
781 ),
782
783 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
784 "index=%lu to_write=%ld wrote=%lu",
785 __entry->name,
786 __entry->ino,
787 show_inode_state(__entry->state),
788 __entry->dirtied_when,
789 (jiffies - __entry->dirtied_when) / HZ,
790 __entry->writeback_index,
791 __entry->nr_to_write,
792 __entry->wrote
793 )
794 )
795
796 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
797 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode_requeue,
798 TP_PROTO(struct inode *inode,
799 struct writeback_control *wbc,
800 unsigned long nr_to_write),
801 TP_ARGS(inode, wbc, nr_to_write)
802 )
803 #endif
804
805 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode,
806 TP_PROTO(struct inode *inode,
807 struct writeback_control *wbc,
808 unsigned long nr_to_write),
809 TP_ARGS(inode, wbc, nr_to_write)
810 )
811 #endif
812
813 #endif /* LTTNG_TRACE_WRITEBACK_H */
814
815 /* This part must be outside protection */
816 #include "../../../probes/define_trace.h"
LTTng 2.0/0.x modules
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