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455b2864 DC |
1 | #undef TRACE_SYSTEM |
2 | #define TRACE_SYSTEM writeback | |
3 | ||
4 | #if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ) | |
5 | #define _TRACE_WRITEBACK_H | |
6 | ||
7 | #include <linux/backing-dev.h> | |
96dccab1 | 8 | #include <linux/device.h> |
455b2864 DC |
9 | #include <linux/writeback.h> |
10 | ||
251d6a47 WF |
11 | #define show_inode_state(state) \ |
12 | __print_flags(state, "|", \ | |
13 | {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \ | |
14 | {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \ | |
15 | {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \ | |
16 | {I_NEW, "I_NEW"}, \ | |
17 | {I_WILL_FREE, "I_WILL_FREE"}, \ | |
18 | {I_FREEING, "I_FREEING"}, \ | |
19 | {I_CLEAR, "I_CLEAR"}, \ | |
20 | {I_SYNC, "I_SYNC"}, \ | |
21 | {I_REFERENCED, "I_REFERENCED"} \ | |
22 | ) | |
23 | ||
455b2864 DC |
24 | struct wb_writeback_work; |
25 | ||
26 | DECLARE_EVENT_CLASS(writeback_work_class, | |
27 | TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), | |
28 | TP_ARGS(bdi, work), | |
29 | TP_STRUCT__entry( | |
30 | __array(char, name, 32) | |
31 | __field(long, nr_pages) | |
32 | __field(dev_t, sb_dev) | |
33 | __field(int, sync_mode) | |
34 | __field(int, for_kupdate) | |
35 | __field(int, range_cyclic) | |
36 | __field(int, for_background) | |
0e175a18 | 37 | __field(int, reason) |
455b2864 DC |
38 | ), |
39 | TP_fast_assign( | |
40 | strncpy(__entry->name, dev_name(bdi->dev), 32); | |
41 | __entry->nr_pages = work->nr_pages; | |
42 | __entry->sb_dev = work->sb ? work->sb->s_dev : 0; | |
43 | __entry->sync_mode = work->sync_mode; | |
44 | __entry->for_kupdate = work->for_kupdate; | |
45 | __entry->range_cyclic = work->range_cyclic; | |
46 | __entry->for_background = work->for_background; | |
0e175a18 | 47 | __entry->reason = work->reason; |
455b2864 DC |
48 | ), |
49 | TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d " | |
0e175a18 | 50 | "kupdate=%d range_cyclic=%d background=%d reason=%s", |
455b2864 DC |
51 | __entry->name, |
52 | MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev), | |
53 | __entry->nr_pages, | |
54 | __entry->sync_mode, | |
55 | __entry->for_kupdate, | |
56 | __entry->range_cyclic, | |
0e175a18 CW |
57 | __entry->for_background, |
58 | wb_reason_name[__entry->reason] | |
455b2864 DC |
59 | ) |
60 | ); | |
61 | #define DEFINE_WRITEBACK_WORK_EVENT(name) \ | |
62 | DEFINE_EVENT(writeback_work_class, name, \ | |
63 | TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \ | |
64 | TP_ARGS(bdi, work)) | |
65 | DEFINE_WRITEBACK_WORK_EVENT(writeback_nothread); | |
66 | DEFINE_WRITEBACK_WORK_EVENT(writeback_queue); | |
67 | DEFINE_WRITEBACK_WORK_EVENT(writeback_exec); | |
d46db3d5 WF |
68 | DEFINE_WRITEBACK_WORK_EVENT(writeback_start); |
69 | DEFINE_WRITEBACK_WORK_EVENT(writeback_written); | |
70 | DEFINE_WRITEBACK_WORK_EVENT(writeback_wait); | |
455b2864 DC |
71 | |
72 | TRACE_EVENT(writeback_pages_written, | |
73 | TP_PROTO(long pages_written), | |
74 | TP_ARGS(pages_written), | |
75 | TP_STRUCT__entry( | |
76 | __field(long, pages) | |
77 | ), | |
78 | TP_fast_assign( | |
79 | __entry->pages = pages_written; | |
80 | ), | |
81 | TP_printk("%ld", __entry->pages) | |
82 | ); | |
83 | ||
84 | DECLARE_EVENT_CLASS(writeback_class, | |
85 | TP_PROTO(struct backing_dev_info *bdi), | |
86 | TP_ARGS(bdi), | |
87 | TP_STRUCT__entry( | |
88 | __array(char, name, 32) | |
89 | ), | |
90 | TP_fast_assign( | |
91 | strncpy(__entry->name, dev_name(bdi->dev), 32); | |
92 | ), | |
93 | TP_printk("bdi %s", | |
94 | __entry->name | |
95 | ) | |
96 | ); | |
97 | #define DEFINE_WRITEBACK_EVENT(name) \ | |
98 | DEFINE_EVENT(writeback_class, name, \ | |
99 | TP_PROTO(struct backing_dev_info *bdi), \ | |
100 | TP_ARGS(bdi)) | |
101 | ||
102 | DEFINE_WRITEBACK_EVENT(writeback_nowork); | |
71927e84 | 103 | DEFINE_WRITEBACK_EVENT(writeback_wake_background); |
60332023 AB |
104 | DEFINE_WRITEBACK_EVENT(writeback_wake_thread); |
105 | DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread); | |
455b2864 DC |
106 | DEFINE_WRITEBACK_EVENT(writeback_bdi_register); |
107 | DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister); | |
108 | DEFINE_WRITEBACK_EVENT(writeback_thread_start); | |
109 | DEFINE_WRITEBACK_EVENT(writeback_thread_stop); | |
110 | ||
028c2dd1 DC |
111 | DECLARE_EVENT_CLASS(wbc_class, |
112 | TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), | |
113 | TP_ARGS(wbc, bdi), | |
114 | TP_STRUCT__entry( | |
115 | __array(char, name, 32) | |
116 | __field(long, nr_to_write) | |
117 | __field(long, pages_skipped) | |
118 | __field(int, sync_mode) | |
028c2dd1 DC |
119 | __field(int, for_kupdate) |
120 | __field(int, for_background) | |
121 | __field(int, for_reclaim) | |
122 | __field(int, range_cyclic) | |
028c2dd1 DC |
123 | __field(long, range_start) |
124 | __field(long, range_end) | |
125 | ), | |
126 | ||
127 | TP_fast_assign( | |
128 | strncpy(__entry->name, dev_name(bdi->dev), 32); | |
129 | __entry->nr_to_write = wbc->nr_to_write; | |
130 | __entry->pages_skipped = wbc->pages_skipped; | |
131 | __entry->sync_mode = wbc->sync_mode; | |
132 | __entry->for_kupdate = wbc->for_kupdate; | |
133 | __entry->for_background = wbc->for_background; | |
134 | __entry->for_reclaim = wbc->for_reclaim; | |
135 | __entry->range_cyclic = wbc->range_cyclic; | |
028c2dd1 DC |
136 | __entry->range_start = (long)wbc->range_start; |
137 | __entry->range_end = (long)wbc->range_end; | |
138 | ), | |
139 | ||
140 | TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d " | |
d46db3d5 | 141 | "bgrd=%d reclm=%d cyclic=%d " |
028c2dd1 DC |
142 | "start=0x%lx end=0x%lx", |
143 | __entry->name, | |
144 | __entry->nr_to_write, | |
145 | __entry->pages_skipped, | |
146 | __entry->sync_mode, | |
147 | __entry->for_kupdate, | |
148 | __entry->for_background, | |
149 | __entry->for_reclaim, | |
150 | __entry->range_cyclic, | |
028c2dd1 DC |
151 | __entry->range_start, |
152 | __entry->range_end) | |
153 | ) | |
154 | ||
155 | #define DEFINE_WBC_EVENT(name) \ | |
156 | DEFINE_EVENT(wbc_class, name, \ | |
157 | TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \ | |
158 | TP_ARGS(wbc, bdi)) | |
9e094383 | 159 | DEFINE_WBC_EVENT(wbc_writepage); |
028c2dd1 | 160 | |
e84d0a4f WF |
161 | TRACE_EVENT(writeback_queue_io, |
162 | TP_PROTO(struct bdi_writeback *wb, | |
ad4e38dd | 163 | struct wb_writeback_work *work, |
e84d0a4f | 164 | int moved), |
ad4e38dd | 165 | TP_ARGS(wb, work, moved), |
e84d0a4f WF |
166 | TP_STRUCT__entry( |
167 | __array(char, name, 32) | |
168 | __field(unsigned long, older) | |
169 | __field(long, age) | |
170 | __field(int, moved) | |
0e175a18 | 171 | __field(int, reason) |
e84d0a4f WF |
172 | ), |
173 | TP_fast_assign( | |
ad4e38dd | 174 | unsigned long *older_than_this = work->older_than_this; |
e84d0a4f WF |
175 | strncpy(__entry->name, dev_name(wb->bdi->dev), 32); |
176 | __entry->older = older_than_this ? *older_than_this : 0; | |
177 | __entry->age = older_than_this ? | |
178 | (jiffies - *older_than_this) * 1000 / HZ : -1; | |
179 | __entry->moved = moved; | |
0e175a18 | 180 | __entry->reason = work->reason; |
e84d0a4f | 181 | ), |
0e175a18 | 182 | TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s", |
e84d0a4f WF |
183 | __entry->name, |
184 | __entry->older, /* older_than_this in jiffies */ | |
185 | __entry->age, /* older_than_this in relative milliseconds */ | |
0e175a18 CW |
186 | __entry->moved, |
187 | wb_reason_name[__entry->reason]) | |
e84d0a4f WF |
188 | ); |
189 | ||
e1cbe236 WF |
190 | TRACE_EVENT(global_dirty_state, |
191 | ||
192 | TP_PROTO(unsigned long background_thresh, | |
193 | unsigned long dirty_thresh | |
194 | ), | |
195 | ||
196 | TP_ARGS(background_thresh, | |
197 | dirty_thresh | |
198 | ), | |
199 | ||
200 | TP_STRUCT__entry( | |
201 | __field(unsigned long, nr_dirty) | |
202 | __field(unsigned long, nr_writeback) | |
203 | __field(unsigned long, nr_unstable) | |
204 | __field(unsigned long, background_thresh) | |
205 | __field(unsigned long, dirty_thresh) | |
206 | __field(unsigned long, dirty_limit) | |
207 | __field(unsigned long, nr_dirtied) | |
208 | __field(unsigned long, nr_written) | |
209 | ), | |
210 | ||
211 | TP_fast_assign( | |
212 | __entry->nr_dirty = global_page_state(NR_FILE_DIRTY); | |
213 | __entry->nr_writeback = global_page_state(NR_WRITEBACK); | |
214 | __entry->nr_unstable = global_page_state(NR_UNSTABLE_NFS); | |
215 | __entry->nr_dirtied = global_page_state(NR_DIRTIED); | |
216 | __entry->nr_written = global_page_state(NR_WRITTEN); | |
217 | __entry->background_thresh = background_thresh; | |
218 | __entry->dirty_thresh = dirty_thresh; | |
219 | __entry->dirty_limit = global_dirty_limit; | |
220 | ), | |
221 | ||
222 | TP_printk("dirty=%lu writeback=%lu unstable=%lu " | |
223 | "bg_thresh=%lu thresh=%lu limit=%lu " | |
224 | "dirtied=%lu written=%lu", | |
225 | __entry->nr_dirty, | |
226 | __entry->nr_writeback, | |
227 | __entry->nr_unstable, | |
228 | __entry->background_thresh, | |
229 | __entry->dirty_thresh, | |
230 | __entry->dirty_limit, | |
231 | __entry->nr_dirtied, | |
232 | __entry->nr_written | |
233 | ) | |
234 | ); | |
235 | ||
b48c104d WF |
236 | #define KBps(x) ((x) << (PAGE_SHIFT - 10)) |
237 | ||
238 | TRACE_EVENT(bdi_dirty_ratelimit, | |
239 | ||
240 | TP_PROTO(struct backing_dev_info *bdi, | |
241 | unsigned long dirty_rate, | |
242 | unsigned long task_ratelimit), | |
243 | ||
244 | TP_ARGS(bdi, dirty_rate, task_ratelimit), | |
245 | ||
246 | TP_STRUCT__entry( | |
247 | __array(char, bdi, 32) | |
248 | __field(unsigned long, write_bw) | |
249 | __field(unsigned long, avg_write_bw) | |
250 | __field(unsigned long, dirty_rate) | |
251 | __field(unsigned long, dirty_ratelimit) | |
252 | __field(unsigned long, task_ratelimit) | |
253 | __field(unsigned long, balanced_dirty_ratelimit) | |
254 | ), | |
255 | ||
256 | TP_fast_assign( | |
257 | strlcpy(__entry->bdi, dev_name(bdi->dev), 32); | |
258 | __entry->write_bw = KBps(bdi->write_bandwidth); | |
259 | __entry->avg_write_bw = KBps(bdi->avg_write_bandwidth); | |
260 | __entry->dirty_rate = KBps(dirty_rate); | |
261 | __entry->dirty_ratelimit = KBps(bdi->dirty_ratelimit); | |
262 | __entry->task_ratelimit = KBps(task_ratelimit); | |
263 | __entry->balanced_dirty_ratelimit = | |
264 | KBps(bdi->balanced_dirty_ratelimit); | |
265 | ), | |
266 | ||
267 | TP_printk("bdi %s: " | |
268 | "write_bw=%lu awrite_bw=%lu dirty_rate=%lu " | |
269 | "dirty_ratelimit=%lu task_ratelimit=%lu " | |
270 | "balanced_dirty_ratelimit=%lu", | |
271 | __entry->bdi, | |
272 | __entry->write_bw, /* write bandwidth */ | |
273 | __entry->avg_write_bw, /* avg write bandwidth */ | |
274 | __entry->dirty_rate, /* bdi dirty rate */ | |
275 | __entry->dirty_ratelimit, /* base ratelimit */ | |
276 | __entry->task_ratelimit, /* ratelimit with position control */ | |
277 | __entry->balanced_dirty_ratelimit /* the balanced ratelimit */ | |
278 | ) | |
279 | ); | |
280 | ||
ece13ac3 WF |
281 | TRACE_EVENT(balance_dirty_pages, |
282 | ||
283 | TP_PROTO(struct backing_dev_info *bdi, | |
284 | unsigned long thresh, | |
285 | unsigned long bg_thresh, | |
286 | unsigned long dirty, | |
287 | unsigned long bdi_thresh, | |
288 | unsigned long bdi_dirty, | |
289 | unsigned long dirty_ratelimit, | |
290 | unsigned long task_ratelimit, | |
291 | unsigned long dirtied, | |
292 | long pause, | |
293 | unsigned long start_time), | |
294 | ||
295 | TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty, | |
296 | dirty_ratelimit, task_ratelimit, | |
297 | dirtied, pause, start_time), | |
298 | ||
299 | TP_STRUCT__entry( | |
300 | __array( char, bdi, 32) | |
301 | __field(unsigned long, limit) | |
302 | __field(unsigned long, setpoint) | |
303 | __field(unsigned long, dirty) | |
304 | __field(unsigned long, bdi_setpoint) | |
305 | __field(unsigned long, bdi_dirty) | |
306 | __field(unsigned long, dirty_ratelimit) | |
307 | __field(unsigned long, task_ratelimit) | |
308 | __field(unsigned int, dirtied) | |
309 | __field(unsigned int, dirtied_pause) | |
310 | __field(unsigned long, paused) | |
311 | __field( long, pause) | |
312 | ), | |
313 | ||
314 | TP_fast_assign( | |
315 | unsigned long freerun = (thresh + bg_thresh) / 2; | |
316 | strlcpy(__entry->bdi, dev_name(bdi->dev), 32); | |
317 | ||
318 | __entry->limit = global_dirty_limit; | |
319 | __entry->setpoint = (global_dirty_limit + freerun) / 2; | |
320 | __entry->dirty = dirty; | |
321 | __entry->bdi_setpoint = __entry->setpoint * | |
322 | bdi_thresh / (thresh + 1); | |
323 | __entry->bdi_dirty = bdi_dirty; | |
324 | __entry->dirty_ratelimit = KBps(dirty_ratelimit); | |
325 | __entry->task_ratelimit = KBps(task_ratelimit); | |
326 | __entry->dirtied = dirtied; | |
327 | __entry->dirtied_pause = current->nr_dirtied_pause; | |
328 | __entry->pause = pause * 1000 / HZ; | |
329 | __entry->paused = (jiffies - start_time) * 1000 / HZ; | |
330 | ), | |
331 | ||
332 | ||
333 | TP_printk("bdi %s: " | |
334 | "limit=%lu setpoint=%lu dirty=%lu " | |
335 | "bdi_setpoint=%lu bdi_dirty=%lu " | |
336 | "dirty_ratelimit=%lu task_ratelimit=%lu " | |
337 | "dirtied=%u dirtied_pause=%u " | |
338 | "paused=%lu pause=%ld", | |
339 | __entry->bdi, | |
340 | __entry->limit, | |
341 | __entry->setpoint, | |
342 | __entry->dirty, | |
343 | __entry->bdi_setpoint, | |
344 | __entry->bdi_dirty, | |
345 | __entry->dirty_ratelimit, | |
346 | __entry->task_ratelimit, | |
347 | __entry->dirtied, | |
348 | __entry->dirtied_pause, | |
349 | __entry->paused, /* ms */ | |
350 | __entry->pause /* ms */ | |
351 | ) | |
352 | ); | |
353 | ||
52bb9198 MG |
354 | DECLARE_EVENT_CLASS(writeback_congest_waited_template, |
355 | ||
356 | TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), | |
357 | ||
358 | TP_ARGS(usec_timeout, usec_delayed), | |
359 | ||
360 | TP_STRUCT__entry( | |
361 | __field( unsigned int, usec_timeout ) | |
362 | __field( unsigned int, usec_delayed ) | |
363 | ), | |
364 | ||
365 | TP_fast_assign( | |
366 | __entry->usec_timeout = usec_timeout; | |
367 | __entry->usec_delayed = usec_delayed; | |
368 | ), | |
369 | ||
370 | TP_printk("usec_timeout=%u usec_delayed=%u", | |
371 | __entry->usec_timeout, | |
372 | __entry->usec_delayed) | |
373 | ); | |
374 | ||
375 | DEFINE_EVENT(writeback_congest_waited_template, writeback_congestion_wait, | |
376 | ||
377 | TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), | |
378 | ||
379 | TP_ARGS(usec_timeout, usec_delayed) | |
380 | ); | |
381 | ||
0e093d99 MG |
382 | DEFINE_EVENT(writeback_congest_waited_template, writeback_wait_iff_congested, |
383 | ||
384 | TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), | |
385 | ||
386 | TP_ARGS(usec_timeout, usec_delayed) | |
387 | ); | |
388 | ||
251d6a47 WF |
389 | DECLARE_EVENT_CLASS(writeback_single_inode_template, |
390 | ||
391 | TP_PROTO(struct inode *inode, | |
392 | struct writeback_control *wbc, | |
393 | unsigned long nr_to_write | |
394 | ), | |
395 | ||
396 | TP_ARGS(inode, wbc, nr_to_write), | |
397 | ||
398 | TP_STRUCT__entry( | |
399 | __array(char, name, 32) | |
400 | __field(unsigned long, ino) | |
401 | __field(unsigned long, state) | |
c8ad6206 | 402 | __field(unsigned long, dirtied_when) |
251d6a47 WF |
403 | __field(unsigned long, writeback_index) |
404 | __field(long, nr_to_write) | |
405 | __field(unsigned long, wrote) | |
406 | ), | |
407 | ||
408 | TP_fast_assign( | |
409 | strncpy(__entry->name, | |
410 | dev_name(inode->i_mapping->backing_dev_info->dev), 32); | |
411 | __entry->ino = inode->i_ino; | |
412 | __entry->state = inode->i_state; | |
c8ad6206 | 413 | __entry->dirtied_when = inode->dirtied_when; |
251d6a47 WF |
414 | __entry->writeback_index = inode->i_mapping->writeback_index; |
415 | __entry->nr_to_write = nr_to_write; | |
416 | __entry->wrote = nr_to_write - wbc->nr_to_write; | |
417 | ), | |
418 | ||
c8ad6206 | 419 | TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu " |
251d6a47 WF |
420 | "index=%lu to_write=%ld wrote=%lu", |
421 | __entry->name, | |
422 | __entry->ino, | |
423 | show_inode_state(__entry->state), | |
c8ad6206 WF |
424 | __entry->dirtied_when, |
425 | (jiffies - __entry->dirtied_when) / HZ, | |
251d6a47 WF |
426 | __entry->writeback_index, |
427 | __entry->nr_to_write, | |
428 | __entry->wrote | |
429 | ) | |
430 | ); | |
431 | ||
432 | DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_requeue, | |
433 | TP_PROTO(struct inode *inode, | |
434 | struct writeback_control *wbc, | |
435 | unsigned long nr_to_write), | |
436 | TP_ARGS(inode, wbc, nr_to_write) | |
437 | ); | |
438 | ||
439 | DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode, | |
440 | TP_PROTO(struct inode *inode, | |
441 | struct writeback_control *wbc, | |
442 | unsigned long nr_to_write), | |
443 | TP_ARGS(inode, wbc, nr_to_write) | |
444 | ); | |
445 | ||
455b2864 DC |
446 | #endif /* _TRACE_WRITEBACK_H */ |
447 | ||
448 | /* This part must be outside protection */ | |
449 | #include <trace/define_trace.h> |