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b87700e3 AG |
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> | |
8 | #include <linux/writeback.h> | |
9 | #include <linux/version.h> | |
10 | ||
11 | #ifndef _TRACE_WRITEBACK_DEF_ | |
12 | #define _TRACE_WRITEBACK_DEF_ | |
13 | /* Have to duplicate it here from fs/fs-writeback.c */ | |
14 | struct wb_writeback_work { | |
15 | long nr_pages; | |
16 | struct super_block *sb; | |
17 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) | |
18 | unsigned long *older_than_this; | |
19 | #endif | |
20 | enum writeback_sync_modes sync_mode; | |
21 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) | |
22 | unsigned int tagged_writepages:1; | |
23 | #endif | |
24 | unsigned int for_kupdate:1; | |
25 | unsigned int range_cyclic:1; | |
26 | unsigned int for_background:1; | |
27 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) | |
28 | enum wb_reason reason; /* why was writeback initiated? */ | |
29 | #endif | |
30 | ||
31 | struct list_head list; /* pending work list */ | |
32 | struct completion *done; /* set if the caller waits */ | |
33 | }; | |
34 | static inline struct backing_dev_info *inode_to_bdi(struct inode *inode) | |
35 | { | |
36 | struct super_block *sb = inode->i_sb; | |
37 | ||
38 | if (strcmp(sb->s_type->name, "bdev") == 0) | |
39 | return inode->i_mapping->backing_dev_info; | |
40 | ||
41 | return sb->s_bdi; | |
42 | } | |
43 | #endif | |
44 | ||
45 | #define show_inode_state(state) \ | |
46 | __print_flags(state, "|", \ | |
47 | {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \ | |
48 | {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \ | |
49 | {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \ | |
50 | {I_NEW, "I_NEW"}, \ | |
51 | {I_WILL_FREE, "I_WILL_FREE"}, \ | |
52 | {I_FREEING, "I_FREEING"}, \ | |
53 | {I_CLEAR, "I_CLEAR"}, \ | |
54 | {I_SYNC, "I_SYNC"}, \ | |
55 | {I_REFERENCED, "I_REFERENCED"} \ | |
56 | ) | |
57 | ||
58 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) | |
59 | #define WB_WORK_REASON \ | |
60 | {WB_REASON_BACKGROUND, "background"}, \ | |
61 | {WB_REASON_TRY_TO_FREE_PAGES, "try_to_free_pages"}, \ | |
62 | {WB_REASON_SYNC, "sync"}, \ | |
63 | {WB_REASON_PERIODIC, "periodic"}, \ | |
64 | {WB_REASON_LAPTOP_TIMER, "laptop_timer"}, \ | |
65 | {WB_REASON_FREE_MORE_MEM, "free_more_memory"}, \ | |
66 | {WB_REASON_FS_FREE_SPACE, "fs_free_space"}, \ | |
67 | {WB_REASON_FORKER_THREAD, "forker_thread"} | |
68 | #endif | |
69 | ||
70 | DECLARE_EVENT_CLASS(writeback_work_class, | |
71 | TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), | |
72 | TP_ARGS(bdi, work), | |
73 | TP_STRUCT__entry( | |
74 | __array(char, name, 32) | |
75 | __field(long, nr_pages) | |
76 | __field(dev_t, sb_dev) | |
77 | __field(int, sync_mode) | |
78 | __field(int, for_kupdate) | |
79 | __field(int, range_cyclic) | |
80 | __field(int, for_background) | |
81 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) | |
82 | __field(int, reason) | |
83 | #endif | |
84 | ), | |
85 | TP_fast_assign( | |
86 | tp_memcpy(name, dev_name(bdi->dev ? bdi->dev : | |
87 | default_backing_dev_info.dev), 32) | |
88 | tp_assign(nr_pages, work->nr_pages) | |
89 | tp_assign(sb_dev, work->sb ? work->sb->s_dev : 0) | |
90 | tp_assign(sync_mode, work->sync_mode) | |
91 | tp_assign(for_kupdate, work->for_kupdate) | |
92 | tp_assign(range_cyclic, work->range_cyclic) | |
93 | tp_assign(for_background, work->for_background) | |
94 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) | |
95 | tp_assign(reason, work->reason) | |
96 | #endif | |
97 | ), | |
98 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) | |
99 | TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d " | |
100 | "kupdate=%d range_cyclic=%d background=%d reason=%s", | |
101 | __entry->name, | |
102 | MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev), | |
103 | __entry->nr_pages, | |
104 | __entry->sync_mode, | |
105 | __entry->for_kupdate, | |
106 | __entry->range_cyclic, | |
107 | __entry->for_background, | |
108 | __print_symbolic(__entry->reason, WB_WORK_REASON) | |
109 | ) | |
110 | #else | |
111 | TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d " | |
112 | "kupdate=%d range_cyclic=%d background=%d", | |
113 | __entry->name, | |
114 | MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev), | |
115 | __entry->nr_pages, | |
116 | __entry->sync_mode, | |
117 | __entry->for_kupdate, | |
118 | __entry->range_cyclic, | |
119 | __entry->for_background | |
120 | ) | |
121 | #endif | |
122 | ) | |
123 | #define DEFINE_WRITEBACK_WORK_EVENT(name) \ | |
124 | DEFINE_EVENT(writeback_work_class, name, \ | |
125 | TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \ | |
126 | TP_ARGS(bdi, work)) | |
127 | DEFINE_WRITEBACK_WORK_EVENT(writeback_nothread) | |
128 | DEFINE_WRITEBACK_WORK_EVENT(writeback_queue) | |
129 | DEFINE_WRITEBACK_WORK_EVENT(writeback_exec) | |
130 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) | |
131 | DEFINE_WRITEBACK_WORK_EVENT(writeback_start) | |
132 | DEFINE_WRITEBACK_WORK_EVENT(writeback_written) | |
133 | DEFINE_WRITEBACK_WORK_EVENT(writeback_wait) | |
134 | #endif | |
135 | ||
136 | TRACE_EVENT(writeback_pages_written, | |
137 | TP_PROTO(long pages_written), | |
138 | TP_ARGS(pages_written), | |
139 | TP_STRUCT__entry( | |
140 | __field(long, pages) | |
141 | ), | |
142 | TP_fast_assign( | |
143 | tp_assign(pages, pages_written) | |
144 | ), | |
145 | TP_printk("%ld", __entry->pages) | |
146 | ) | |
147 | ||
148 | DECLARE_EVENT_CLASS(writeback_class, | |
149 | TP_PROTO(struct backing_dev_info *bdi), | |
150 | TP_ARGS(bdi), | |
151 | TP_STRUCT__entry( | |
152 | __array(char, name, 32) | |
153 | ), | |
154 | TP_fast_assign( | |
155 | tp_memcpy(name, dev_name(bdi->dev), 32) | |
156 | ), | |
157 | TP_printk("bdi %s", | |
158 | __entry->name | |
159 | ) | |
160 | ) | |
161 | #define DEFINE_WRITEBACK_EVENT(name) \ | |
162 | DEFINE_EVENT(writeback_class, name, \ | |
163 | TP_PROTO(struct backing_dev_info *bdi), \ | |
164 | TP_ARGS(bdi)) | |
165 | ||
9cf29d3e MD |
166 | #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \ |
167 | DEFINE_EVENT_MAP(writeback_class, name, map, \ | |
168 | TP_PROTO(struct backing_dev_info *bdi), \ | |
169 | TP_ARGS(bdi)) | |
170 | ||
b87700e3 AG |
171 | DEFINE_WRITEBACK_EVENT(writeback_nowork) |
172 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)) | |
173 | DEFINE_WRITEBACK_EVENT(writeback_wake_background) | |
174 | #endif | |
175 | DEFINE_WRITEBACK_EVENT(writeback_wake_thread) | |
176 | DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread) | |
177 | DEFINE_WRITEBACK_EVENT(writeback_bdi_register) | |
178 | DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister) | |
179 | DEFINE_WRITEBACK_EVENT(writeback_thread_start) | |
180 | DEFINE_WRITEBACK_EVENT(writeback_thread_stop) | |
181 | #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0)) | |
9cf29d3e MD |
182 | DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start) |
183 | DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait) | |
184 | ||
185 | TRACE_EVENT_MAP(balance_dirty_written, | |
b87700e3 | 186 | |
9cf29d3e | 187 | writeback_balance_dirty_written, |
b87700e3 AG |
188 | |
189 | TP_PROTO(struct backing_dev_info *bdi, int written), | |
190 | ||
191 | TP_ARGS(bdi, written), | |
192 | ||
193 | TP_STRUCT__entry( | |
194 | __array(char, name, 32) | |
195 | __field(int, written) | |
196 | ), | |
197 | ||
198 | TP_fast_assign( | |
199 | tp_memcpy(name, dev_name(bdi->dev), 32) | |
200 | tp_assign(written, written) | |
201 | ), | |
202 | ||
203 | TP_printk("bdi %s written %d", | |
204 | __entry->name, | |
205 | __entry->written | |
206 | ) | |
207 | ) | |
208 | #endif | |
209 | ||
9cf29d3e | 210 | DECLARE_EVENT_CLASS(writeback_wbc_class, |
b87700e3 AG |
211 | TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), |
212 | TP_ARGS(wbc, bdi), | |
213 | TP_STRUCT__entry( | |
214 | __array(char, name, 32) | |
215 | __field(long, nr_to_write) | |
216 | __field(long, pages_skipped) | |
217 | __field(int, sync_mode) | |
218 | __field(int, for_kupdate) | |
219 | __field(int, for_background) | |
220 | __field(int, for_reclaim) | |
221 | __field(int, range_cyclic) | |
222 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)) | |
223 | __field(int, more_io) | |
224 | __field(unsigned long, older_than_this) | |
225 | #endif | |
226 | __field(long, range_start) | |
227 | __field(long, range_end) | |
228 | ), | |
229 | ||
230 | TP_fast_assign( | |
231 | tp_memcpy(name, dev_name(bdi->dev), 32) | |
232 | tp_assign(nr_to_write, wbc->nr_to_write) | |
233 | tp_assign(pages_skipped, wbc->pages_skipped) | |
234 | tp_assign(sync_mode, wbc->sync_mode) | |
235 | tp_assign(for_kupdate, wbc->for_kupdate) | |
236 | tp_assign(for_background, wbc->for_background) | |
237 | tp_assign(for_reclaim, wbc->for_reclaim) | |
238 | tp_assign(range_cyclic, wbc->range_cyclic) | |
239 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)) | |
240 | tp_assign(more_io, wbc->more_io) | |
241 | tp_assign(older_than_this, wbc->older_than_this ? | |
242 | *wbc->older_than_this : 0) | |
243 | #endif | |
244 | tp_assign(range_start, (long)wbc->range_start) | |
245 | tp_assign(range_end, (long)wbc->range_end) | |
246 | ), | |
247 | ||
248 | TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d " | |
249 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)) | |
250 | "bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx " | |
251 | #else | |
252 | "bgrd=%d reclm=%d cyclic=%d " | |
253 | #endif | |
254 | "start=0x%lx end=0x%lx", | |
255 | __entry->name, | |
256 | __entry->nr_to_write, | |
257 | __entry->pages_skipped, | |
258 | __entry->sync_mode, | |
259 | __entry->for_kupdate, | |
260 | __entry->for_background, | |
261 | __entry->for_reclaim, | |
262 | __entry->range_cyclic, | |
263 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)) | |
264 | __entry->more_io, | |
265 | __entry->older_than_this, | |
266 | #endif | |
267 | __entry->range_start, | |
268 | __entry->range_end) | |
269 | ) | |
270 | ||
9cf29d3e MD |
271 | #undef DEFINE_WBC_EVENT |
272 | #define DEFINE_WBC_EVENT(name, map) \ | |
273 | DEFINE_EVENT_MAP(writeback_wbc_class, name, map, \ | |
b87700e3 AG |
274 | TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \ |
275 | TP_ARGS(wbc, bdi)) | |
276 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)) | |
9cf29d3e MD |
277 | DEFINE_WBC_EVENT(wbc_writeback_start, writeback_wbc_writeback_start) |
278 | DEFINE_WBC_EVENT(wbc_writeback_written, writeback_wbc_writeback_written) | |
279 | DEFINE_WBC_EVENT(wbc_writeback_wait, writeback_wbc_writeback_wait) | |
280 | DEFINE_WBC_EVENT(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start) | |
281 | DEFINE_WBC_EVENT(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written) | |
282 | DEFINE_WBC_EVENT(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait) | |
b87700e3 | 283 | #endif |
9cf29d3e | 284 | DEFINE_WBC_EVENT(wbc_writepage, writeback_wbc_writepage) |
b87700e3 AG |
285 | |
286 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) | |
287 | TRACE_EVENT(writeback_queue_io, | |
288 | TP_PROTO(struct bdi_writeback *wb, | |
289 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) | |
290 | struct wb_writeback_work *work, | |
291 | #else | |
292 | unsigned long *older_than_this, | |
293 | #endif | |
294 | int moved), | |
295 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) | |
296 | TP_ARGS(wb, work, moved), | |
297 | #else | |
298 | TP_ARGS(wb, older_than_this, moved), | |
299 | #endif | |
300 | TP_STRUCT__entry( | |
301 | __array(char, name, 32) | |
302 | __field(unsigned long, older) | |
303 | __field(long, age) | |
304 | __field(int, moved) | |
305 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) | |
306 | __field(int, reason) | |
307 | #endif | |
308 | ), | |
309 | TP_fast_assign( | |
310 | tp_memcpy(name, dev_name(wb->bdi->dev), 32) | |
311 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) | |
312 | tp_assign(older, | |
313 | work->older_than_this ? *(work->older_than_this) : 0) | |
314 | tp_assign(age, work->older_than_this ? | |
315 | (jiffies - *(work->older_than_this)) * 1000 / HZ : -1) | |
316 | #else | |
317 | tp_assign(older, older_than_this ? *older_than_this : 0) | |
318 | tp_assign(age, older_than_this ? | |
319 | (jiffies - *older_than_this) * 1000 / HZ : -1) | |
320 | #endif | |
321 | tp_assign(moved, moved) | |
322 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) | |
323 | tp_assign(reason, work->reason) | |
324 | #endif | |
325 | ), | |
326 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) | |
327 | TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s", | |
328 | __entry->name, | |
329 | __entry->older, /* older_than_this in jiffies */ | |
330 | __entry->age, /* older_than_this in relative milliseconds */ | |
331 | __entry->moved, | |
332 | __print_symbolic(__entry->reason, WB_WORK_REASON) | |
333 | ) | |
334 | #else | |
335 | TP_printk("bdi %s: older=%lu age=%ld enqueue=%d", | |
336 | __entry->name, | |
337 | __entry->older, /* older_than_this in jiffies */ | |
338 | __entry->age, /* older_than_this in relative milliseconds */ | |
339 | __entry->moved | |
340 | ) | |
341 | #endif | |
342 | ) | |
343 | ||
9cf29d3e MD |
344 | TRACE_EVENT_MAP(global_dirty_state, |
345 | ||
346 | writeback_global_dirty_state, | |
b87700e3 AG |
347 | |
348 | TP_PROTO(unsigned long background_thresh, | |
349 | unsigned long dirty_thresh | |
350 | ), | |
351 | ||
352 | TP_ARGS(background_thresh, | |
353 | dirty_thresh | |
354 | ), | |
355 | ||
356 | TP_STRUCT__entry( | |
357 | __field(unsigned long, nr_dirty) | |
358 | __field(unsigned long, nr_writeback) | |
359 | __field(unsigned long, nr_unstable) | |
360 | __field(unsigned long, background_thresh) | |
361 | __field(unsigned long, dirty_thresh) | |
362 | __field(unsigned long, dirty_limit) | |
363 | __field(unsigned long, nr_dirtied) | |
364 | __field(unsigned long, nr_written) | |
365 | ), | |
366 | ||
367 | TP_fast_assign( | |
368 | tp_assign(nr_dirty, global_page_state(NR_FILE_DIRTY)) | |
369 | tp_assign(nr_writeback, global_page_state(NR_WRITEBACK)) | |
370 | tp_assign(nr_unstable, global_page_state(NR_UNSTABLE_NFS)) | |
371 | tp_assign(nr_dirtied, global_page_state(NR_DIRTIED)) | |
372 | tp_assign(nr_written, global_page_state(NR_WRITTEN)) | |
373 | tp_assign(background_thresh, background_thresh) | |
374 | tp_assign(dirty_thresh, dirty_thresh) | |
375 | tp_assign(dirty_limit, global_dirty_limit) | |
376 | ), | |
377 | ||
378 | TP_printk("dirty=%lu writeback=%lu unstable=%lu " | |
379 | "bg_thresh=%lu thresh=%lu limit=%lu " | |
380 | "dirtied=%lu written=%lu", | |
381 | __entry->nr_dirty, | |
382 | __entry->nr_writeback, | |
383 | __entry->nr_unstable, | |
384 | __entry->background_thresh, | |
385 | __entry->dirty_thresh, | |
386 | __entry->dirty_limit, | |
387 | __entry->nr_dirtied, | |
388 | __entry->nr_written | |
389 | ) | |
390 | ) | |
391 | #endif | |
392 | ||
393 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) | |
394 | ||
395 | #define KBps(x) ((x) << (PAGE_SHIFT - 10)) | |
396 | ||
9cf29d3e MD |
397 | TRACE_EVENT_MAP(bdi_dirty_ratelimit, |
398 | ||
399 | writeback_bdi_dirty_ratelimit, | |
b87700e3 AG |
400 | |
401 | TP_PROTO(struct backing_dev_info *bdi, | |
402 | unsigned long dirty_rate, | |
403 | unsigned long task_ratelimit), | |
404 | ||
405 | TP_ARGS(bdi, dirty_rate, task_ratelimit), | |
406 | ||
407 | TP_STRUCT__entry( | |
408 | __array(char, bdi, 32) | |
409 | __field(unsigned long, write_bw) | |
410 | __field(unsigned long, avg_write_bw) | |
411 | __field(unsigned long, dirty_rate) | |
412 | __field(unsigned long, dirty_ratelimit) | |
413 | __field(unsigned long, task_ratelimit) | |
414 | __field(unsigned long, balanced_dirty_ratelimit) | |
415 | ), | |
416 | ||
417 | TP_fast_assign( | |
418 | tp_memcpy(bdi, dev_name(bdi->dev), 32) | |
419 | tp_assign(write_bw, KBps(bdi->write_bandwidth)) | |
420 | tp_assign(avg_write_bw, KBps(bdi->avg_write_bandwidth)) | |
421 | tp_assign(dirty_rate, KBps(dirty_rate)) | |
422 | tp_assign(dirty_ratelimit, KBps(bdi->dirty_ratelimit)) | |
423 | tp_assign(task_ratelimit, KBps(task_ratelimit)) | |
424 | tp_assign(balanced_dirty_ratelimit, | |
425 | KBps(bdi->balanced_dirty_ratelimit)) | |
426 | ), | |
427 | ||
428 | TP_printk("bdi %s: " | |
429 | "write_bw=%lu awrite_bw=%lu dirty_rate=%lu " | |
430 | "dirty_ratelimit=%lu task_ratelimit=%lu " | |
431 | "balanced_dirty_ratelimit=%lu", | |
432 | __entry->bdi, | |
433 | __entry->write_bw, /* write bandwidth */ | |
434 | __entry->avg_write_bw, /* avg write bandwidth */ | |
435 | __entry->dirty_rate, /* bdi dirty rate */ | |
436 | __entry->dirty_ratelimit, /* base ratelimit */ | |
437 | __entry->task_ratelimit, /* ratelimit with position control */ | |
438 | __entry->balanced_dirty_ratelimit /* the balanced ratelimit */ | |
439 | ) | |
440 | ) | |
441 | ||
9cf29d3e MD |
442 | TRACE_EVENT_MAP(balance_dirty_pages, |
443 | ||
444 | writeback_balance_dirty_pages, | |
b87700e3 AG |
445 | |
446 | TP_PROTO(struct backing_dev_info *bdi, | |
447 | unsigned long thresh, | |
448 | unsigned long bg_thresh, | |
449 | unsigned long dirty, | |
450 | unsigned long bdi_thresh, | |
451 | unsigned long bdi_dirty, | |
452 | unsigned long dirty_ratelimit, | |
453 | unsigned long task_ratelimit, | |
454 | unsigned long dirtied, | |
455 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) | |
456 | unsigned long period, | |
457 | #endif | |
458 | long pause, | |
459 | unsigned long start_time), | |
460 | ||
461 | TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty, | |
462 | dirty_ratelimit, task_ratelimit, | |
463 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) | |
464 | dirtied, period, pause, start_time), | |
465 | #else | |
466 | dirtied, pause, start_time), | |
467 | #endif | |
468 | TP_STRUCT__entry( | |
469 | __array( char, bdi, 32) | |
470 | __field(unsigned long, limit) | |
471 | __field(unsigned long, setpoint) | |
472 | __field(unsigned long, dirty) | |
473 | __field(unsigned long, bdi_setpoint) | |
474 | __field(unsigned long, bdi_dirty) | |
475 | __field(unsigned long, dirty_ratelimit) | |
476 | __field(unsigned long, task_ratelimit) | |
477 | __field(unsigned int, dirtied) | |
478 | __field(unsigned int, dirtied_pause) | |
479 | __field(unsigned long, paused) | |
480 | __field( long, pause) | |
481 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) | |
482 | __field(unsigned long, period) | |
483 | __field( long, think) | |
484 | #endif | |
485 | ), | |
486 | ||
487 | TP_fast_assign( | |
488 | tp_memcpy(bdi, dev_name(bdi->dev), 32) | |
489 | tp_assign(limit, global_dirty_limit) | |
490 | tp_assign(setpoint, | |
491 | (global_dirty_limit + (thresh + bg_thresh) / 2) / 2) | |
492 | tp_assign(dirty, dirty) | |
493 | tp_assign(bdi_setpoint, | |
494 | ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) * | |
495 | bdi_thresh / (thresh + 1)) | |
496 | tp_assign(bdi_dirty, bdi_dirty) | |
497 | tp_assign(dirty_ratelimit, KBps(dirty_ratelimit)) | |
498 | tp_assign(task_ratelimit, KBps(task_ratelimit)) | |
499 | tp_assign(dirtied, dirtied) | |
500 | tp_assign(dirtied_pause, current->nr_dirtied_pause) | |
501 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) | |
502 | tp_assign(think, current->dirty_paused_when == 0 ? 0 : | |
503 | (long)(jiffies - current->dirty_paused_when) * 1000/HZ) | |
504 | tp_assign(period, period * 1000 / HZ) | |
505 | #endif | |
506 | tp_assign(pause, pause * 1000 / HZ) | |
507 | tp_assign(paused, (jiffies - start_time) * 1000 / HZ) | |
508 | ), | |
509 | ||
510 | ||
511 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) | |
512 | TP_printk("bdi %s: " | |
513 | "limit=%lu setpoint=%lu dirty=%lu " | |
514 | "bdi_setpoint=%lu bdi_dirty=%lu " | |
515 | "dirty_ratelimit=%lu task_ratelimit=%lu " | |
516 | "dirtied=%u dirtied_pause=%u " | |
517 | "paused=%lu pause=%ld period=%lu think=%ld", | |
518 | __entry->bdi, | |
519 | __entry->limit, | |
520 | __entry->setpoint, | |
521 | __entry->dirty, | |
522 | __entry->bdi_setpoint, | |
523 | __entry->bdi_dirty, | |
524 | __entry->dirty_ratelimit, | |
525 | __entry->task_ratelimit, | |
526 | __entry->dirtied, | |
527 | __entry->dirtied_pause, | |
528 | __entry->paused, /* ms */ | |
529 | __entry->pause, /* ms */ | |
530 | __entry->period, /* ms */ | |
531 | __entry->think /* ms */ | |
532 | ) | |
533 | #else | |
534 | TP_printk("bdi %s: " | |
535 | "limit=%lu setpoint=%lu dirty=%lu " | |
536 | "bdi_setpoint=%lu bdi_dirty=%lu " | |
537 | "dirty_ratelimit=%lu task_ratelimit=%lu " | |
538 | "dirtied=%u dirtied_pause=%u " | |
539 | "paused=%lu pause=%ld", | |
540 | __entry->bdi, | |
541 | __entry->limit, | |
542 | __entry->setpoint, | |
543 | __entry->dirty, | |
544 | __entry->bdi_setpoint, | |
545 | __entry->bdi_dirty, | |
546 | __entry->dirty_ratelimit, | |
547 | __entry->task_ratelimit, | |
548 | __entry->dirtied, | |
549 | __entry->dirtied_pause, | |
550 | __entry->paused, /* ms */ | |
551 | __entry->pause /* ms */ | |
552 | ) | |
553 | #endif | |
554 | ) | |
555 | #endif | |
556 | ||
557 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0)) | |
558 | TRACE_EVENT(writeback_sb_inodes_requeue, | |
559 | ||
560 | TP_PROTO(struct inode *inode), | |
561 | TP_ARGS(inode), | |
562 | ||
563 | TP_STRUCT__entry( | |
564 | __array(char, name, 32) | |
565 | __field(unsigned long, ino) | |
566 | __field(unsigned long, state) | |
567 | __field(unsigned long, dirtied_when) | |
568 | ), | |
569 | ||
570 | TP_fast_assign( | |
571 | tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32) | |
572 | tp_assign(ino, inode->i_ino) | |
573 | tp_assign(state, inode->i_state) | |
574 | tp_assign(dirtied_when, inode->dirtied_when) | |
575 | ), | |
576 | ||
577 | TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu", | |
578 | __entry->name, | |
579 | __entry->ino, | |
580 | show_inode_state(__entry->state), | |
581 | __entry->dirtied_when, | |
582 | (jiffies - __entry->dirtied_when) / HZ | |
583 | ) | |
584 | ) | |
585 | #endif | |
586 | ||
587 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) | |
588 | DECLARE_EVENT_CLASS(writeback_congest_waited_template, | |
589 | ||
590 | TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), | |
591 | ||
592 | TP_ARGS(usec_timeout, usec_delayed), | |
593 | ||
594 | TP_STRUCT__entry( | |
595 | __field( unsigned int, usec_timeout ) | |
596 | __field( unsigned int, usec_delayed ) | |
597 | ), | |
598 | ||
599 | TP_fast_assign( | |
600 | tp_assign(usec_timeout, usec_timeout) | |
601 | tp_assign(usec_delayed, usec_delayed) | |
602 | ), | |
603 | ||
604 | TP_printk("usec_timeout=%u usec_delayed=%u", | |
605 | __entry->usec_timeout, | |
606 | __entry->usec_delayed) | |
607 | ) | |
608 | ||
609 | DEFINE_EVENT(writeback_congest_waited_template, writeback_congestion_wait, | |
610 | ||
611 | TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), | |
612 | ||
613 | TP_ARGS(usec_timeout, usec_delayed) | |
614 | ) | |
615 | ||
616 | DEFINE_EVENT(writeback_congest_waited_template, writeback_wait_iff_congested, | |
617 | ||
618 | TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), | |
619 | ||
620 | TP_ARGS(usec_timeout, usec_delayed) | |
621 | ) | |
622 | #endif | |
623 | ||
624 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) | |
625 | DECLARE_EVENT_CLASS(writeback_single_inode_template, | |
626 | ||
627 | TP_PROTO(struct inode *inode, | |
628 | struct writeback_control *wbc, | |
629 | unsigned long nr_to_write | |
630 | ), | |
631 | ||
632 | TP_ARGS(inode, wbc, nr_to_write), | |
633 | ||
634 | TP_STRUCT__entry( | |
635 | __array(char, name, 32) | |
636 | __field(unsigned long, ino) | |
637 | __field(unsigned long, state) | |
638 | __field(unsigned long, dirtied_when) | |
639 | __field(unsigned long, writeback_index) | |
640 | __field(long, nr_to_write) | |
641 | __field(unsigned long, wrote) | |
642 | ), | |
643 | ||
644 | TP_fast_assign( | |
645 | tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32) | |
646 | tp_assign(ino, inode->i_ino) | |
647 | tp_assign(state, inode->i_state) | |
648 | tp_assign(dirtied_when, inode->dirtied_when) | |
649 | tp_assign(writeback_index, inode->i_mapping->writeback_index) | |
650 | tp_assign(nr_to_write, nr_to_write) | |
651 | tp_assign(wrote, nr_to_write - wbc->nr_to_write) | |
652 | ), | |
653 | ||
654 | TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu " | |
655 | "index=%lu to_write=%ld wrote=%lu", | |
656 | __entry->name, | |
657 | __entry->ino, | |
658 | show_inode_state(__entry->state), | |
659 | __entry->dirtied_when, | |
660 | (jiffies - __entry->dirtied_when) / HZ, | |
661 | __entry->writeback_index, | |
662 | __entry->nr_to_write, | |
663 | __entry->wrote | |
664 | ) | |
665 | ) | |
666 | ||
667 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0)) | |
668 | DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_requeue, | |
669 | TP_PROTO(struct inode *inode, | |
670 | struct writeback_control *wbc, | |
671 | unsigned long nr_to_write), | |
672 | TP_ARGS(inode, wbc, nr_to_write) | |
673 | ) | |
674 | #endif | |
675 | ||
676 | DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode, | |
677 | TP_PROTO(struct inode *inode, | |
678 | struct writeback_control *wbc, | |
679 | unsigned long nr_to_write), | |
680 | TP_ARGS(inode, wbc, nr_to_write) | |
681 | ) | |
682 | #endif | |
683 | ||
684 | #endif /* _TRACE_WRITEBACK_H */ | |
685 | ||
686 | /* This part must be outside protection */ | |
687 | #include "../../../probes/define_trace.h" |