projects / lttng-modules.git / blame_incremental
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (non-incremental) | history | HEAD
fix: writeback: Fix sync livelock due to b_dirty_time processing (v5.9)
[lttng-modules.git] / include / instrumentation / events / writeback.h
... / ...
CommitLineData
1/* SPDX-License-Identifier: GPL-2.0-only */
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM writeback
4
5#if !defined(LTTNG_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
6#define LTTNG_TRACE_WRITEBACK_H
7
8#include <lttng/tracepoint-event.h>
9#include <linux/tracepoint.h>
10#include <linux/backing-dev.h>
11#include <linux/writeback.h>
12#include <linux/version.h>
13
14#ifndef _TRACE_WRITEBACK_DEF_
15#define _TRACE_WRITEBACK_DEF_
16
17/*
18 * Vanilla kernels before 4.0 do not implement inode_to_bdi
19 * RHEL kernels before 3.10.0-327.10.1 do not implement inode_to_bdi
20 * RHEL kernel 3.10.0-327.10.1 has inode_to_bdi
21 * RHEL kernel 3.10.0-327.13.1 includes a partial merge of upstream
22 * commit a212b105b07d75b48b1a166378282e8a77fbf53d which inlines
23 * inode_to_bdi but not sb_is_blkdev_sb making it unusable by modules.
24 */
25#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0))
26static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode)
27{
28 struct super_block *sb;
29
30 if (!inode)
31 return &noop_backing_dev_info;
32
33 sb = inode->i_sb;
34
35 if (strcmp(sb->s_type->name, "bdev") == 0)
36 return inode->i_mapping->backing_dev_info;
37
38 return sb->s_bdi;
39}
40#else
41static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode)
42{
43 return inode_to_bdi(inode);
44}
45#endif /* #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0)) */
46
47#endif
48
49#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,9,0))
50#define show_inode_state(state) \
51 __print_flags(state, "|", \
52 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
53 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
54 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
55 {I_NEW, "I_NEW"}, \
56 {I_WILL_FREE, "I_WILL_FREE"}, \
57 {I_FREEING, "I_FREEING"}, \
58 {I_CLEAR, "I_CLEAR"}, \
59 {I_SYNC, "I_SYNC"}, \
60 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
61 {I_REFERENCED, "I_REFERENCED"} \
62 )
63#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
64#define show_inode_state(state) \
65 __print_flags(state, "|", \
66 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
67 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
68 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
69 {I_NEW, "I_NEW"}, \
70 {I_WILL_FREE, "I_WILL_FREE"}, \
71 {I_FREEING, "I_FREEING"}, \
72 {I_CLEAR, "I_CLEAR"}, \
73 {I_SYNC, "I_SYNC"}, \
74 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
75 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
76 {I_REFERENCED, "I_REFERENCED"} \
77 )
78#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
79#define show_inode_state(state) \
80 __print_flags(state, "|", \
81 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
82 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
83 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
84 {I_NEW, "I_NEW"}, \
85 {I_WILL_FREE, "I_WILL_FREE"}, \
86 {I_FREEING, "I_FREEING"}, \
87 {I_CLEAR, "I_CLEAR"}, \
88 {I_SYNC, "I_SYNC"}, \
89 {I_REFERENCED, "I_REFERENCED"} \
90 )
91#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
92
93#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
94
95LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
96 TP_PROTO(struct page *page, struct address_space *mapping),
97 TP_ARGS(page, mapping),
98 TP_FIELDS(
99 ctf_array_text(char, name,
100 mapping ? dev_name(lttng_inode_to_bdi(mapping->host)->dev) : "(unknown)", 32)
101 ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0)
102 ctf_integer(pgoff_t, index, page->index)
103 )
104)
105
106LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
107 TP_PROTO(struct inode *inode, int flags),
108 TP_ARGS(inode, flags),
109 TP_FIELDS(
110 /* may be called for files on pseudo FSes w/ unregistered bdi */
111 ctf_array_text(char, name,
112 lttng_inode_to_bdi(inode)->dev ?
113 dev_name(lttng_inode_to_bdi(inode)->dev) : "(unknown)", 32)
114 ctf_integer(unsigned long, ino, inode->i_ino)
115 ctf_integer(unsigned long, state, inode->i_state)
116 ctf_integer(unsigned long, flags, flags)
117 )
118)
119#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
120LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
121 TP_PROTO(struct inode *inode, int flags), \
122 TP_ARGS(inode, flags))
123LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
124LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
125LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty)
126
127LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
128 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
129 TP_ARGS(inode, wbc),
130 TP_FIELDS(
131 ctf_array_text(char, name,
132 dev_name(lttng_inode_to_bdi(inode)->dev), 32)
133 ctf_integer(unsigned long, ino, inode->i_ino)
134 ctf_integer(int, sync_mode, wbc->sync_mode)
135 )
136)
137
138#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
139LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
140 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
141 TP_ARGS(inode, wbc))
142LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
143LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
144
145#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
146
147LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
148 TP_PROTO(struct page *page, struct address_space *mapping),
149 TP_ARGS(page, mapping),
150 TP_FIELDS(
151 ctf_array_text(char, name,
152 mapping ? dev_name(mapping->backing_dev_info->dev) : "(unknown)", 32)
153 ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0)
154 ctf_integer(pgoff_t, index, page->index)
155 )
156)
157
158LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
159 TP_PROTO(struct inode *inode, int flags),
160 TP_ARGS(inode, flags),
161 TP_FIELDS(
162 /* may be called for files on pseudo FSes w/ unregistered bdi */
163 ctf_array_text(char, name,
164 inode->i_mapping->backing_dev_info->dev ?
165 dev_name(inode->i_mapping->backing_dev_info->dev)
166 : "(unknown)", 32)
167 ctf_integer(unsigned long, ino, inode->i_ino)
168 ctf_integer(unsigned long, flags, flags)
169 )
170)
171#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
172LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
173 TP_PROTO(struct inode *inode, int flags), \
174 TP_ARGS(inode, flags))
175LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
176LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
177
178LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
179 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
180 TP_ARGS(inode, wbc),
181 TP_FIELDS(
182 ctf_array_text(char, name,
183 dev_name(inode->i_mapping->backing_dev_info->dev), 32)
184 ctf_integer(unsigned long, ino, inode->i_ino)
185 ctf_integer(int, sync_mode, wbc->sync_mode)
186 )
187)
188
189#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
190LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
191 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
192 TP_ARGS(inode, wbc))
193LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
194LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
195
196#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */
197
198#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
199
200LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
201 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work),
202 TP_ARGS(wb, work),
203 TP_FIELDS(
204 ctf_array_text(char, name, wb->bdi->dev ? dev_name(wb->bdi->dev) :
205 "(unknown)", 32)
206 )
207)
208
209#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
210
211LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
212 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
213 TP_ARGS(bdi, work),
214 TP_FIELDS(
215 ctf_array_text(char, name, bdi->dev ? dev_name(bdi->dev) :
216 "(unknown)", 32)
217 )
218)
219
220#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
221
222LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
223 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
224 TP_ARGS(bdi, work),
225 TP_FIELDS(
226 ctf_array_text(char, name,
227 dev_name(bdi->dev ? bdi->dev :
228 default_backing_dev_info.dev), 32)
229 )
230)
231
232#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
233
234#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
235
236#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
237LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
238 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
239 TP_ARGS(wb, work))
240
241#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
242
243#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
244LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
245 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
246 TP_ARGS(bdi, work))
247
248#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
249
250LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread)
251LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue)
252LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec)
253#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
254LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start)
255LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written)
256LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait)
257#endif
258
259LTTNG_TRACEPOINT_EVENT(writeback_pages_written,
260 TP_PROTO(long pages_written),
261 TP_ARGS(pages_written),
262 TP_FIELDS(
263 ctf_integer(long, pages, pages_written)
264 )
265)
266
267#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
268
269LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
270 TP_PROTO(struct bdi_writeback *wb),
271 TP_ARGS(wb),
272 TP_FIELDS(
273 ctf_array_text(char, name,
274 dev_name(wb->bdi->dev), 32)
275 )
276)
277
278#undef DEFINE_WRITEBACK_EVENT
279#define DEFINE_WRITEBACK_EVENT(name) \
280LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
281 TP_PROTO(struct bdi_writeback *wb), \
282 TP_ARGS(wb))
283
284#define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
285LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
286 TP_PROTO(struct bdi_writeback *wb), \
287 TP_ARGS(wb))
288
289LTTNG_TRACEPOINT_EVENT(writeback_bdi_register,
290 TP_PROTO(struct backing_dev_info *bdi),
291 TP_ARGS(bdi),
292 TP_FIELDS(
293 ctf_array_text(char, name,
294 dev_name(bdi->dev), 32)
295 )
296)
297
298#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
299
300LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
301 TP_PROTO(struct backing_dev_info *bdi),
302 TP_ARGS(bdi),
303 TP_FIELDS(
304 ctf_array_text(char, name,
305 dev_name(bdi->dev), 32)
306 )
307)
308
309#undef DEFINE_WRITEBACK_EVENT
310#define DEFINE_WRITEBACK_EVENT(name) \
311LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
312 TP_PROTO(struct backing_dev_info *bdi), \
313 TP_ARGS(bdi))
314
315#define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
316LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
317 TP_PROTO(struct backing_dev_info *bdi), \
318 TP_ARGS(bdi))
319
320DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
321
322#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
323
324DEFINE_WRITEBACK_EVENT(writeback_nowork)
325DEFINE_WRITEBACK_EVENT(writeback_wake_background)
326DEFINE_WRITEBACK_EVENT(writeback_wake_thread)
327DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread)
328DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister)
329DEFINE_WRITEBACK_EVENT(writeback_thread_start)
330DEFINE_WRITEBACK_EVENT(writeback_thread_stop)
331#if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
332DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start)
333DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait)
334
335LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written,
336
337 writeback_balance_dirty_written,
338
339 TP_PROTO(struct backing_dev_info *bdi, int written),
340
341 TP_ARGS(bdi, written),
342
343 TP_FIELDS(
344 ctf_array_text(char, name, dev_name(bdi->dev), 32)
345 ctf_integer(int, written, written)
346 )
347)
348#endif
349
350LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class,
351 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
352 TP_ARGS(wbc, bdi),
353 TP_FIELDS(
354 ctf_array_text(char, name, dev_name(bdi->dev), 32)
355 ctf_integer(long, nr_to_write, wbc->nr_to_write)
356 ctf_integer(long, pages_skipped, wbc->pages_skipped)
357 ctf_integer(int, sync_mode, wbc->sync_mode)
358 ctf_integer(int, for_kupdate, wbc->for_kupdate)
359 ctf_integer(int, for_background, wbc->for_background)
360 ctf_integer(int, for_reclaim, wbc->for_reclaim)
361 ctf_integer(int, range_cyclic, wbc->range_cyclic)
362#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
363 ctf_integer(int, more_io, wbc->more_io)
364 ctf_integer(unsigned long, older_than_this,
365 wbc->older_than_this ? *wbc->older_than_this : 0)
366#endif
367 ctf_integer(long, range_start, (long) wbc->range_start)
368 ctf_integer(long, range_end, (long) wbc->range_end)
369 )
370)
371
372#undef DEFINE_WBC_EVENT
373#define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
374LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
375 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
376 TP_ARGS(wbc, bdi))
377#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
378LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start, writeback_wbc_writeback_start)
379LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written, writeback_wbc_writeback_written)
380LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait, writeback_wbc_writeback_wait)
381LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start)
382LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written)
383LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait)
384#endif
385LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage)
386
387#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,9,0))
388LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
389 TP_PROTO(struct bdi_writeback *wb,
390 struct wb_writeback_work *work,
391 unsigned long dirtied_before,
392 int moved),
393 TP_ARGS(wb, work, dirtied_before, moved),
394 TP_FIELDS(
395 ctf_array_text(char, name, dev_name(wb->bdi->dev), 32)
396 ctf_integer(unsigned long, older, dirtied_before)
397 ctf_integer(int, moved, moved)
398 )
399)
400#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
401LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
402 TP_PROTO(struct bdi_writeback *wb,
403 struct wb_writeback_work *work,
404 int moved),
405 TP_ARGS(wb, work, moved),
406 TP_FIELDS(
407 ctf_array_text(char, name, dev_name(wb->bdi->dev), 32)
408 ctf_integer(int, moved, moved)
409 )
410)
411#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
412LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
413 TP_PROTO(struct bdi_writeback *wb,
414 unsigned long *older_than_this,
415 int moved),
416 TP_ARGS(wb, older_than_this, moved),
417 TP_FIELDS(
418 ctf_array_text(char, name, dev_name(wb->bdi->dev), 32)
419 ctf_integer(unsigned long, older,
420 older_than_this ? *older_than_this : 0)
421 ctf_integer(long, age,
422 older_than_this ?
423 (jiffies - *older_than_this) * 1000 / HZ
424 : -1)
425 ctf_integer(int, moved, moved)
426 )
427)
428#endif
429
430#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,0))
431LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
432
433 writeback_global_dirty_state,
434
435 TP_PROTO(unsigned long background_thresh,
436 unsigned long dirty_thresh
437 ),
438
439 TP_ARGS(background_thresh,
440 dirty_thresh
441 ),
442
443 TP_FIELDS(
444 ctf_integer(unsigned long, nr_dirty, global_node_page_state(NR_FILE_DIRTY))
445 ctf_integer(unsigned long, nr_writeback, global_node_page_state(NR_WRITEBACK))
446 ctf_integer(unsigned long, nr_dirtied, global_node_page_state(NR_DIRTIED))
447 ctf_integer(unsigned long, nr_written, global_node_page_state(NR_WRITTEN))
448 ctf_integer(unsigned long, background_thresh, background_thresh)
449 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
450 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
451 )
452)
453#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0))
454LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
455
456 writeback_global_dirty_state,
457
458 TP_PROTO(unsigned long background_thresh,
459 unsigned long dirty_thresh
460 ),
461
462 TP_ARGS(background_thresh,
463 dirty_thresh
464 ),
465
466 TP_FIELDS(
467 ctf_integer(unsigned long, nr_dirty, global_node_page_state(NR_FILE_DIRTY))
468 ctf_integer(unsigned long, nr_writeback, global_node_page_state(NR_WRITEBACK))
469 ctf_integer(unsigned long, nr_unstable, global_node_page_state(NR_UNSTABLE_NFS))
470 ctf_integer(unsigned long, nr_dirtied, global_node_page_state(NR_DIRTIED))
471 ctf_integer(unsigned long, nr_written, global_node_page_state(NR_WRITTEN))
472 ctf_integer(unsigned long, background_thresh, background_thresh)
473 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
474 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
475 )
476)
477#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
478LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
479
480 writeback_global_dirty_state,
481
482 TP_PROTO(unsigned long background_thresh,
483 unsigned long dirty_thresh
484 ),
485
486 TP_ARGS(background_thresh,
487 dirty_thresh
488 ),
489
490 TP_FIELDS(
491 ctf_integer(unsigned long, nr_dirty, global_page_state(NR_FILE_DIRTY))
492 ctf_integer(unsigned long, nr_writeback, global_page_state(NR_WRITEBACK))
493 ctf_integer(unsigned long, nr_unstable, global_page_state(NR_UNSTABLE_NFS))
494 ctf_integer(unsigned long, nr_dirtied, global_page_state(NR_DIRTIED))
495 ctf_integer(unsigned long, nr_written, global_page_state(NR_WRITTEN))
496 ctf_integer(unsigned long, background_thresh, background_thresh)
497 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
498 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
499 )
500)
501#endif
502
503#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
504
505#define KBps(x) ((x) << (PAGE_SHIFT - 10))
506
507#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
508
509LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
510
511 writeback_bdi_dirty_ratelimit,
512
513 TP_PROTO(struct bdi_writeback *wb,
514 unsigned long dirty_rate,
515 unsigned long task_ratelimit),
516
517 TP_ARGS(wb, dirty_rate, task_ratelimit),
518
519 TP_FIELDS(
520 ctf_array_text(char, bdi, dev_name(wb->bdi->dev), 32)
521 ctf_integer(unsigned long, write_bw, KBps(wb->bdi->wb.write_bandwidth))
522 ctf_integer(unsigned long, avg_write_bw, KBps(wb->bdi->wb.avg_write_bandwidth))
523 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
524 ctf_integer(unsigned long, dirty_ratelimit, KBps(wb->bdi->wb.dirty_ratelimit))
525 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
526 ctf_integer(unsigned long, balanced_dirty_ratelimit,
527 KBps(wb->bdi->wb.balanced_dirty_ratelimit))
528 )
529)
530
531#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
532
533LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
534
535 writeback_bdi_dirty_ratelimit,
536
537 TP_PROTO(struct backing_dev_info *bdi,
538 unsigned long dirty_rate,
539 unsigned long task_ratelimit),
540
541 TP_ARGS(bdi, dirty_rate, task_ratelimit),
542
543 TP_FIELDS(
544 ctf_array_text(char, bdi, dev_name(bdi->dev), 32)
545 ctf_integer(unsigned long, write_bw, KBps(bdi->wb.write_bandwidth))
546 ctf_integer(unsigned long, avg_write_bw, KBps(bdi->wb.avg_write_bandwidth))
547 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
548 ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->wb.dirty_ratelimit))
549 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
550 ctf_integer(unsigned long, balanced_dirty_ratelimit,
551 KBps(bdi->wb.balanced_dirty_ratelimit))
552 )
553)
554
555#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
556
557LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
558
559 writeback_bdi_dirty_ratelimit,
560
561 TP_PROTO(struct backing_dev_info *bdi,
562 unsigned long dirty_rate,
563 unsigned long task_ratelimit),
564
565 TP_ARGS(bdi, dirty_rate, task_ratelimit),
566
567 TP_FIELDS(
568 ctf_array_text(char, bdi, dev_name(bdi->dev), 32)
569 ctf_integer(unsigned long, write_bw, KBps(bdi->write_bandwidth))
570 ctf_integer(unsigned long, avg_write_bw, KBps(bdi->avg_write_bandwidth))
571 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
572 ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->dirty_ratelimit))
573 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
574 ctf_integer(unsigned long, balanced_dirty_ratelimit,
575 KBps(bdi->balanced_dirty_ratelimit))
576 )
577)
578
579#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
580
581#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
582
583LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
584
585 writeback_balance_dirty_pages,
586
587 TP_PROTO(struct bdi_writeback *wb,
588 unsigned long thresh,
589 unsigned long bg_thresh,
590 unsigned long dirty,
591 unsigned long bdi_thresh,
592 unsigned long bdi_dirty,
593 unsigned long dirty_ratelimit,
594 unsigned long task_ratelimit,
595 unsigned long dirtied,
596 unsigned long period,
597 long pause,
598 unsigned long start_time),
599
600 TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
601 dirty_ratelimit, task_ratelimit,
602 dirtied, period, pause, start_time
603 ),
604
605 TP_FIELDS(
606 ctf_array_text(char, bdi, dev_name(wb->bdi->dev), 32)
607 ctf_integer(unsigned long, limit, global_dirty_limit)
608 ctf_integer(unsigned long, setpoint,
609 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
610 ctf_integer(unsigned long, dirty, dirty)
611 ctf_integer(unsigned long, bdi_setpoint,
612 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
613 bdi_thresh / (thresh + 1))
614 ctf_integer(unsigned long, bdi_dirty, bdi_dirty)
615 ctf_integer(unsigned long, dirty_ratelimit,
616 KBps(dirty_ratelimit))
617 ctf_integer(unsigned long, task_ratelimit,
618 KBps(task_ratelimit))
619 ctf_integer(unsigned int, dirtied, dirtied)
620 ctf_integer(unsigned int, dirtied_pause,
621 current->nr_dirtied_pause)
622 ctf_integer(unsigned long, paused,
623 (jiffies - start_time) * 1000 / HZ)
624 ctf_integer(long, pause, pause * 1000 / HZ)
625 ctf_integer(unsigned long, period,
626 period * 1000 / HZ)
627 ctf_integer(long, think,
628 current->dirty_paused_when == 0 ? 0 :
629 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
630 )
631)
632
633#else /* #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
634
635LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
636
637 writeback_balance_dirty_pages,
638
639 TP_PROTO(struct backing_dev_info *bdi,
640 unsigned long thresh,
641 unsigned long bg_thresh,
642 unsigned long dirty,
643 unsigned long bdi_thresh,
644 unsigned long bdi_dirty,
645 unsigned long dirty_ratelimit,
646 unsigned long task_ratelimit,
647 unsigned long dirtied,
648#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
649 unsigned long period,
650#endif
651 long pause,
652 unsigned long start_time),
653
654 TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
655 dirty_ratelimit, task_ratelimit,
656#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
657 dirtied, period, pause, start_time
658#else
659 dirtied, pause, start_time
660#endif
661 ),
662
663 TP_FIELDS(
664 ctf_array_text(char, bdi, dev_name(bdi->dev), 32)
665 ctf_integer(unsigned long, limit, global_dirty_limit)
666 ctf_integer(unsigned long, setpoint,
667 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
668 ctf_integer(unsigned long, dirty, dirty)
669 ctf_integer(unsigned long, bdi_setpoint,
670 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
671 bdi_thresh / (thresh + 1))
672 ctf_integer(unsigned long, bdi_dirty, bdi_dirty)
673 ctf_integer(unsigned long, dirty_ratelimit,
674 KBps(dirty_ratelimit))
675 ctf_integer(unsigned long, task_ratelimit,
676 KBps(task_ratelimit))
677 ctf_integer(unsigned int, dirtied, dirtied)
678 ctf_integer(unsigned int, dirtied_pause,
679 current->nr_dirtied_pause)
680 ctf_integer(unsigned long, paused,
681 (jiffies - start_time) * 1000 / HZ)
682 ctf_integer(long, pause, pause * 1000 / HZ)
683#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
684 ctf_integer(unsigned long, period,
685 period * 1000 / HZ)
686 ctf_integer(long, think,
687 current->dirty_paused_when == 0 ? 0 :
688 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
689#endif
690 )
691)
692#endif /* #else #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
693
694#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) */
695
696#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
697LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue,
698
699 TP_PROTO(struct inode *inode),
700 TP_ARGS(inode),
701
702 TP_FIELDS(
703 ctf_array_text(char, name,
704 dev_name(lttng_inode_to_bdi(inode)->dev), 32)
705 ctf_integer(unsigned long, ino, inode->i_ino)
706 ctf_integer(unsigned long, state, inode->i_state)
707 ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
708 )
709)
710#endif
711
712LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template,
713
714 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
715
716 TP_ARGS(usec_timeout, usec_delayed),
717
718 TP_FIELDS(
719 ctf_integer(unsigned int, usec_timeout, usec_timeout)
720 ctf_integer(unsigned int, usec_delayed, usec_delayed)
721 )
722)
723
724LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_congestion_wait,
725
726 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
727
728 TP_ARGS(usec_timeout, usec_delayed)
729)
730
731LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_wait_iff_congested,
732
733 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
734
735 TP_ARGS(usec_timeout, usec_delayed)
736)
737
738#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
739LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template,
740
741 TP_PROTO(struct inode *inode,
742 struct writeback_control *wbc,
743 unsigned long nr_to_write
744 ),
745
746 TP_ARGS(inode, wbc, nr_to_write),
747
748 TP_FIELDS(
749 ctf_array_text(char, name,
750 dev_name(lttng_inode_to_bdi(inode)->dev), 32)
751 ctf_integer(unsigned long, ino, inode->i_ino)
752 ctf_integer(unsigned long, state, inode->i_state)
753 ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
754 ctf_integer(unsigned long, writeback_index,
755 inode->i_mapping->writeback_index)
756 ctf_integer(long, nr_to_write, nr_to_write)
757 ctf_integer(unsigned long, wrote,
758 nr_to_write - wbc->nr_to_write)
759 )
760)
761
762#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
763LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode_requeue,
764 TP_PROTO(struct inode *inode,
765 struct writeback_control *wbc,
766 unsigned long nr_to_write),
767 TP_ARGS(inode, wbc, nr_to_write)
768)
769#endif
770
771LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode,
772 TP_PROTO(struct inode *inode,
773 struct writeback_control *wbc,
774 unsigned long nr_to_write),
775 TP_ARGS(inode, wbc, nr_to_write)
776)
777#endif
778
779#endif /* LTTNG_TRACE_WRITEBACK_H */
780
781/* This part must be outside protection */
782#include <lttng/define_trace.h>
LTTng 2.0/0.x modules
This page took 0.024963 seconds and 4 git commands to generate.