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[lttng-modules.git] / include / instrumentation / events / writeback.h
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 <lttng/kernel-version.h>
13
14 #ifndef _TRACE_WRITEBACK_DEF_
15 #define _TRACE_WRITEBACK_DEF_
16
17 /*
18 * Use the GPL-exported bdi_dev_name introduced in kernel 5.7. Do not use
19 * static inline bdi_dev_name in prior kernels because it uses the bdi_unknown_name
20 * symbol which is not exported to GPL modules.
21 */
22 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,7,0))
23 static inline const char *lttng_bdi_dev_name(struct backing_dev_info *bdi)
24 {
25 return bdi_dev_name(bdi);
26 }
27 #else
28 static inline const char *lttng_bdi_dev_name(struct backing_dev_info *bdi)
29 {
30 if (!bdi || !bdi->dev)
31 return "(unknown)";
32 return dev_name(bdi->dev);
33 }
34 #endif
35
36 /*
37 * Vanilla kernels before 4.0 do not implement inode_to_bdi
38 * RHEL kernels before 3.10.0-327.10.1 do not implement inode_to_bdi
39 * RHEL kernel 3.10.0-327.10.1 has inode_to_bdi
40 * RHEL kernel 3.10.0-327.13.1 includes a partial merge of upstream
41 * commit a212b105b07d75b48b1a166378282e8a77fbf53d which inlines
42 * inode_to_bdi but not sb_is_blkdev_sb making it unusable by modules.
43 */
44 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(4,0,0))
45 static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode)
46 {
47 struct super_block *sb;
48
49 if (!inode)
50 return &noop_backing_dev_info;
51
52 sb = inode->i_sb;
53
54 if (strcmp(sb->s_type->name, "bdev") == 0)
55 return inode->i_mapping->backing_dev_info;
56
57 return sb->s_bdi;
58 }
59 #else
60 static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode)
61 {
62 return inode_to_bdi(inode);
63 }
64 #endif /* #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(4,0,0)) */
65
66 #endif
67
68 /*
69 * Keep this macro around to track changes in the valid values for `state`.
70 * Eventually, we will have a enum to describe that field. If the macro is
71 * changed by an upstream kernel, the fact that we have a redefinition here
72 * will generate a compiler warning.
73 */
74 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,9,0) || \
75 LTTNG_UBUNTU_KERNEL_RANGE(5,4,94,67, 5,5,0,0) || \
76 LTTNG_UBUNTU_KERNEL_RANGE(4,15,18,141, 4,16,0,0))
77 #define show_inode_state(state) \
78 __print_flags(state, "|", \
79 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
80 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
81 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
82 {I_NEW, "I_NEW"}, \
83 {I_WILL_FREE, "I_WILL_FREE"}, \
84 {I_FREEING, "I_FREEING"}, \
85 {I_CLEAR, "I_CLEAR"}, \
86 {I_SYNC, "I_SYNC"}, \
87 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
88 {I_REFERENCED, "I_REFERENCED"} \
89 )
90 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0))
91 #define show_inode_state(state) \
92 __print_flags(state, "|", \
93 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
94 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
95 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
96 {I_NEW, "I_NEW"}, \
97 {I_WILL_FREE, "I_WILL_FREE"}, \
98 {I_FREEING, "I_FREEING"}, \
99 {I_CLEAR, "I_CLEAR"}, \
100 {I_SYNC, "I_SYNC"}, \
101 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
102 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
103 {I_REFERENCED, "I_REFERENCED"} \
104 )
105 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0)) */
106 #define show_inode_state(state) \
107 __print_flags(state, "|", \
108 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
109 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
110 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
111 {I_NEW, "I_NEW"}, \
112 {I_WILL_FREE, "I_WILL_FREE"}, \
113 {I_FREEING, "I_FREEING"}, \
114 {I_CLEAR, "I_CLEAR"}, \
115 {I_SYNC, "I_SYNC"}, \
116 {I_REFERENCED, "I_REFERENCED"} \
117 )
118 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0)) */
119
120 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0))
121
122 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
123 TP_PROTO(struct page *page, struct address_space *mapping),
124 TP_ARGS(page, mapping),
125 TP_FIELDS(
126 ctf_string(name, lttng_bdi_dev_name(mapping ? lttng_inode_to_bdi(mapping->host) : NULL))
127 ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0)
128 ctf_integer(pgoff_t, index, page->index)
129 )
130 )
131
132 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
133 TP_PROTO(struct inode *inode, int flags),
134 TP_ARGS(inode, flags),
135 TP_FIELDS(
136 /* may be called for files on pseudo FSes w/ unregistered bdi */
137 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
138 ctf_integer(unsigned long, ino, inode->i_ino)
139 ctf_integer(unsigned long, state, inode->i_state)
140 ctf_integer(unsigned long, flags, flags)
141 )
142 )
143 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
144 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
145 TP_PROTO(struct inode *inode, int flags), \
146 TP_ARGS(inode, flags))
147 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
148 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
149 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty)
150
151 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
152 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
153 TP_ARGS(inode, wbc),
154 TP_FIELDS(
155 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
156 ctf_integer(unsigned long, ino, inode->i_ino)
157 ctf_integer(int, sync_mode, wbc->sync_mode)
158 )
159 )
160
161 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
162 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
163 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
164 TP_ARGS(inode, wbc))
165 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
166 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
167
168 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0))
169
170 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
171 TP_PROTO(struct page *page, struct address_space *mapping),
172 TP_ARGS(page, mapping),
173 TP_FIELDS(
174 ctf_string(name, lttng_bdi_dev_name(mapping ? mapping->backing_dev_info : NULL))
175 ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0)
176 ctf_integer(pgoff_t, index, page->index)
177 )
178 )
179
180 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
181 TP_PROTO(struct inode *inode, int flags),
182 TP_ARGS(inode, flags),
183 TP_FIELDS(
184 /* may be called for files on pseudo FSes w/ unregistered bdi */
185 ctf_string(name, lttng_bdi_dev_name(inode->i_mapping->backing_dev_info))
186 ctf_integer(unsigned long, ino, inode->i_ino)
187 ctf_integer(unsigned long, flags, flags)
188 )
189 )
190 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
191 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
192 TP_PROTO(struct inode *inode, int flags), \
193 TP_ARGS(inode, flags))
194 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
195 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
196
197 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
198 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
199 TP_ARGS(inode, wbc),
200 TP_FIELDS(
201 ctf_string(name, lttng_bdi_dev_name(inode->i_mapping->backing_dev_info))
202 ctf_integer(unsigned long, ino, inode->i_ino)
203 ctf_integer(int, sync_mode, wbc->sync_mode)
204 )
205 )
206
207 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
208 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
209 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
210 TP_ARGS(inode, wbc))
211 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
212 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
213
214 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) */
215
216 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
217
218 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
219 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work),
220 TP_ARGS(wb, work),
221 TP_FIELDS(
222 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
223 )
224 )
225
226 #else
227
228 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
229 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
230 TP_ARGS(bdi, work),
231 TP_FIELDS(
232 ctf_string(name, lttng_bdi_dev_name(bdi))
233 )
234 )
235
236 #endif /* #else if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
237
238 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
239
240 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
241 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
242 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
243 TP_ARGS(wb, work))
244
245 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
246
247 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
248 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
249 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
250 TP_ARGS(bdi, work))
251
252 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
253
254 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread)
255 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue)
256 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec)
257 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
258 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start)
259 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written)
260 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait)
261 #endif
262
263 LTTNG_TRACEPOINT_EVENT(writeback_pages_written,
264 TP_PROTO(long pages_written),
265 TP_ARGS(pages_written),
266 TP_FIELDS(
267 ctf_integer(long, pages, pages_written)
268 )
269 )
270
271 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
272
273 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
274 TP_PROTO(struct bdi_writeback *wb),
275 TP_ARGS(wb),
276 TP_FIELDS(
277 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
278 )
279 )
280
281 #undef DEFINE_WRITEBACK_EVENT
282 #define DEFINE_WRITEBACK_EVENT(name) \
283 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
284 TP_PROTO(struct bdi_writeback *wb), \
285 TP_ARGS(wb))
286
287 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
288 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
289 TP_PROTO(struct bdi_writeback *wb), \
290 TP_ARGS(wb))
291
292 LTTNG_TRACEPOINT_EVENT(writeback_bdi_register,
293 TP_PROTO(struct backing_dev_info *bdi),
294 TP_ARGS(bdi),
295 TP_FIELDS(
296 ctf_string(name, lttng_bdi_dev_name(bdi))
297 )
298 )
299
300 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
301
302 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
303 TP_PROTO(struct backing_dev_info *bdi),
304 TP_ARGS(bdi),
305 TP_FIELDS(
306 ctf_string(name, lttng_bdi_dev_name(bdi))
307 )
308 )
309
310 #undef DEFINE_WRITEBACK_EVENT
311 #define DEFINE_WRITEBACK_EVENT(name) \
312 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
313 TP_PROTO(struct backing_dev_info *bdi), \
314 TP_ARGS(bdi))
315
316 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
317 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
318 TP_PROTO(struct backing_dev_info *bdi), \
319 TP_ARGS(bdi))
320
321 DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
322
323 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
324
325 DEFINE_WRITEBACK_EVENT(writeback_nowork)
326 DEFINE_WRITEBACK_EVENT(writeback_wake_background)
327 DEFINE_WRITEBACK_EVENT(writeback_wake_thread)
328 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread)
329 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister)
330 DEFINE_WRITEBACK_EVENT(writeback_thread_start)
331 DEFINE_WRITEBACK_EVENT(writeback_thread_stop)
332 #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
333 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start)
334 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait)
335
336 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written,
337
338 writeback_balance_dirty_written,
339
340 TP_PROTO(struct backing_dev_info *bdi, int written),
341
342 TP_ARGS(bdi, written),
343
344 TP_FIELDS(
345 ctf_string(name, lttng_bdi_dev_name(bdi))
346 ctf_integer(int, written, written)
347 )
348 )
349 #endif
350
351 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class,
352 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
353 TP_ARGS(wbc, bdi),
354 TP_FIELDS(
355 ctf_string(name, lttng_bdi_dev_name(bdi))
356 ctf_integer(long, nr_to_write, wbc->nr_to_write)
357 ctf_integer(long, pages_skipped, wbc->pages_skipped)
358 ctf_integer(int, sync_mode, wbc->sync_mode)
359 ctf_integer(int, for_kupdate, wbc->for_kupdate)
360 ctf_integer(int, for_background, wbc->for_background)
361 ctf_integer(int, for_reclaim, wbc->for_reclaim)
362 ctf_integer(int, range_cyclic, wbc->range_cyclic)
363 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,1,0))
364 ctf_integer(int, more_io, wbc->more_io)
365 ctf_integer(unsigned long, older_than_this,
366 wbc->older_than_this ? *wbc->older_than_this : 0)
367 #endif
368 ctf_integer(long, range_start, (long) wbc->range_start)
369 ctf_integer(long, range_end, (long) wbc->range_end)
370 )
371 )
372
373 #undef DEFINE_WBC_EVENT
374 #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
375 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
376 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
377 TP_ARGS(wbc, bdi))
378 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,1,0))
379 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start, writeback_wbc_writeback_start)
380 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written, writeback_wbc_writeback_written)
381 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait, writeback_wbc_writeback_wait)
382 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start)
383 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written)
384 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait)
385 #endif
386 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage)
387
388 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,9,0) || \
389 LTTNG_KERNEL_RANGE(5,8,6, 5,9,0) || \
390 LTTNG_KERNEL_RANGE(5,4,62, 5,5,0) || \
391 LTTNG_KERNEL_RANGE(4,19,143, 4,20,0) || \
392 LTTNG_KERNEL_RANGE(4,14,196, 4,15,0) || \
393 LTTNG_KERNEL_RANGE(4,9,235, 4,10,0) || \
394 LTTNG_KERNEL_RANGE(4,4,235, 4,5,0) || \
395 LTTNG_UBUNTU_KERNEL_RANGE(4,15,18,119, 4,16,0,0))
396 LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
397 TP_PROTO(struct bdi_writeback *wb,
398 struct wb_writeback_work *work,
399 unsigned long dirtied_before,
400 int moved),
401 TP_ARGS(wb, work, dirtied_before, moved),
402 TP_FIELDS(
403 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
404 ctf_integer(unsigned long, older, dirtied_before)
405 ctf_integer(int, moved, moved)
406 )
407 )
408 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0))
409 LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
410 TP_PROTO(struct bdi_writeback *wb,
411 struct wb_writeback_work *work,
412 int moved),
413 TP_ARGS(wb, work, moved),
414 TP_FIELDS(
415 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
416 ctf_integer(int, moved, moved)
417 )
418 )
419 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
420 LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
421 TP_PROTO(struct bdi_writeback *wb,
422 unsigned long *older_than_this,
423 int moved),
424 TP_ARGS(wb, older_than_this, moved),
425 TP_FIELDS(
426 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
427 ctf_integer(unsigned long, older,
428 older_than_this ? *older_than_this : 0)
429 ctf_integer(long, age,
430 older_than_this ?
431 (jiffies - *older_than_this) * 1000 / HZ
432 : -1)
433 ctf_integer(int, moved, moved)
434 )
435 )
436 #endif
437
438 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,8,0))
439 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
440
441 writeback_global_dirty_state,
442
443 TP_PROTO(unsigned long background_thresh,
444 unsigned long dirty_thresh
445 ),
446
447 TP_ARGS(background_thresh,
448 dirty_thresh
449 ),
450
451 TP_FIELDS(
452 ctf_integer(unsigned long, nr_dirty, global_node_page_state(NR_FILE_DIRTY))
453 ctf_integer(unsigned long, nr_writeback, global_node_page_state(NR_WRITEBACK))
454 ctf_integer(unsigned long, nr_dirtied, global_node_page_state(NR_DIRTIED))
455 ctf_integer(unsigned long, nr_written, global_node_page_state(NR_WRITTEN))
456 ctf_integer(unsigned long, background_thresh, background_thresh)
457 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
458 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
459 )
460 )
461 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0))
462 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
463
464 writeback_global_dirty_state,
465
466 TP_PROTO(unsigned long background_thresh,
467 unsigned long dirty_thresh
468 ),
469
470 TP_ARGS(background_thresh,
471 dirty_thresh
472 ),
473
474 TP_FIELDS(
475 ctf_integer(unsigned long, nr_dirty, global_node_page_state(NR_FILE_DIRTY))
476 ctf_integer(unsigned long, nr_writeback, global_node_page_state(NR_WRITEBACK))
477 ctf_integer(unsigned long, nr_unstable, global_node_page_state(NR_UNSTABLE_NFS))
478 ctf_integer(unsigned long, nr_dirtied, global_node_page_state(NR_DIRTIED))
479 ctf_integer(unsigned long, nr_written, global_node_page_state(NR_WRITTEN))
480 ctf_integer(unsigned long, background_thresh, background_thresh)
481 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
482 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
483 )
484 )
485 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
486 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
487
488 writeback_global_dirty_state,
489
490 TP_PROTO(unsigned long background_thresh,
491 unsigned long dirty_thresh
492 ),
493
494 TP_ARGS(background_thresh,
495 dirty_thresh
496 ),
497
498 TP_FIELDS(
499 ctf_integer(unsigned long, nr_dirty, global_page_state(NR_FILE_DIRTY))
500 ctf_integer(unsigned long, nr_writeback, global_page_state(NR_WRITEBACK))
501 ctf_integer(unsigned long, nr_unstable, global_page_state(NR_UNSTABLE_NFS))
502 ctf_integer(unsigned long, nr_dirtied, global_page_state(NR_DIRTIED))
503 ctf_integer(unsigned long, nr_written, global_page_state(NR_WRITTEN))
504 ctf_integer(unsigned long, background_thresh, background_thresh)
505 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
506 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
507 )
508 )
509 #endif
510
511 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0))
512
513 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
514
515 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
516
517 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
518
519 writeback_bdi_dirty_ratelimit,
520
521 TP_PROTO(struct bdi_writeback *wb,
522 unsigned long dirty_rate,
523 unsigned long task_ratelimit),
524
525 TP_ARGS(wb, dirty_rate, task_ratelimit),
526
527 TP_FIELDS(
528 ctf_string(bdi, lttng_bdi_dev_name(wb->bdi))
529 ctf_integer(unsigned long, write_bw, KBps(wb->bdi->wb.write_bandwidth))
530 ctf_integer(unsigned long, avg_write_bw, KBps(wb->bdi->wb.avg_write_bandwidth))
531 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
532 ctf_integer(unsigned long, dirty_ratelimit, KBps(wb->bdi->wb.dirty_ratelimit))
533 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
534 ctf_integer(unsigned long, balanced_dirty_ratelimit,
535 KBps(wb->bdi->wb.balanced_dirty_ratelimit))
536 )
537 )
538
539 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0))
540
541 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
542
543 writeback_bdi_dirty_ratelimit,
544
545 TP_PROTO(struct backing_dev_info *bdi,
546 unsigned long dirty_rate,
547 unsigned long task_ratelimit),
548
549 TP_ARGS(bdi, dirty_rate, task_ratelimit),
550
551 TP_FIELDS(
552 ctf_string(bdi, lttng_bdi_dev_name(bdi))
553 ctf_integer(unsigned long, write_bw, KBps(bdi->wb.write_bandwidth))
554 ctf_integer(unsigned long, avg_write_bw, KBps(bdi->wb.avg_write_bandwidth))
555 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
556 ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->wb.dirty_ratelimit))
557 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
558 ctf_integer(unsigned long, balanced_dirty_ratelimit,
559 KBps(bdi->wb.balanced_dirty_ratelimit))
560 )
561 )
562
563 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */
564
565 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
566
567 writeback_bdi_dirty_ratelimit,
568
569 TP_PROTO(struct backing_dev_info *bdi,
570 unsigned long dirty_rate,
571 unsigned long task_ratelimit),
572
573 TP_ARGS(bdi, dirty_rate, task_ratelimit),
574
575 TP_FIELDS(
576 ctf_string(bdi, lttng_bdi_dev_name(bdi))
577 ctf_integer(unsigned long, write_bw, KBps(bdi->write_bandwidth))
578 ctf_integer(unsigned long, avg_write_bw, KBps(bdi->avg_write_bandwidth))
579 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
580 ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->dirty_ratelimit))
581 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
582 ctf_integer(unsigned long, balanced_dirty_ratelimit,
583 KBps(bdi->balanced_dirty_ratelimit))
584 )
585 )
586
587 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */
588
589 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
590
591 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
592
593 writeback_balance_dirty_pages,
594
595 TP_PROTO(struct bdi_writeback *wb,
596 unsigned long thresh,
597 unsigned long bg_thresh,
598 unsigned long dirty,
599 unsigned long bdi_thresh,
600 unsigned long bdi_dirty,
601 unsigned long dirty_ratelimit,
602 unsigned long task_ratelimit,
603 unsigned long dirtied,
604 unsigned long period,
605 long pause,
606 unsigned long start_time),
607
608 TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
609 dirty_ratelimit, task_ratelimit,
610 dirtied, period, pause, start_time
611 ),
612
613 TP_FIELDS(
614 ctf_string(bdi, lttng_bdi_dev_name(wb->bdi))
615 ctf_integer(unsigned long, limit, global_dirty_limit)
616 ctf_integer(unsigned long, setpoint,
617 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
618 ctf_integer(unsigned long, dirty, dirty)
619 ctf_integer(unsigned long, bdi_setpoint,
620 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
621 bdi_thresh / (thresh + 1))
622 ctf_integer(unsigned long, bdi_dirty, bdi_dirty)
623 ctf_integer(unsigned long, dirty_ratelimit,
624 KBps(dirty_ratelimit))
625 ctf_integer(unsigned long, task_ratelimit,
626 KBps(task_ratelimit))
627 ctf_integer(unsigned int, dirtied, dirtied)
628 ctf_integer(unsigned int, dirtied_pause,
629 current->nr_dirtied_pause)
630 ctf_integer(unsigned long, paused,
631 (jiffies - start_time) * 1000 / HZ)
632 ctf_integer(long, pause, pause * 1000 / HZ)
633 ctf_integer(unsigned long, period,
634 period * 1000 / HZ)
635 ctf_integer(long, think,
636 current->dirty_paused_when == 0 ? 0 :
637 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
638 )
639 )
640
641 #else /* #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
642
643 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
644
645 writeback_balance_dirty_pages,
646
647 TP_PROTO(struct backing_dev_info *bdi,
648 unsigned long thresh,
649 unsigned long bg_thresh,
650 unsigned long dirty,
651 unsigned long bdi_thresh,
652 unsigned long bdi_dirty,
653 unsigned long dirty_ratelimit,
654 unsigned long task_ratelimit,
655 unsigned long dirtied,
656 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
657 unsigned long period,
658 #endif
659 long pause,
660 unsigned long start_time),
661
662 TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
663 dirty_ratelimit, task_ratelimit,
664 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
665 dirtied, period, pause, start_time
666 #else
667 dirtied, pause, start_time
668 #endif
669 ),
670
671 TP_FIELDS(
672 ctf_string(bdi, lttng_bdi_dev_name(bdi))
673 ctf_integer(unsigned long, limit, global_dirty_limit)
674 ctf_integer(unsigned long, setpoint,
675 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
676 ctf_integer(unsigned long, dirty, dirty)
677 ctf_integer(unsigned long, bdi_setpoint,
678 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
679 bdi_thresh / (thresh + 1))
680 ctf_integer(unsigned long, bdi_dirty, bdi_dirty)
681 ctf_integer(unsigned long, dirty_ratelimit,
682 KBps(dirty_ratelimit))
683 ctf_integer(unsigned long, task_ratelimit,
684 KBps(task_ratelimit))
685 ctf_integer(unsigned int, dirtied, dirtied)
686 ctf_integer(unsigned int, dirtied_pause,
687 current->nr_dirtied_pause)
688 ctf_integer(unsigned long, paused,
689 (jiffies - start_time) * 1000 / HZ)
690 ctf_integer(long, pause, pause * 1000 / HZ)
691 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
692 ctf_integer(unsigned long, period,
693 period * 1000 / HZ)
694 ctf_integer(long, think,
695 current->dirty_paused_when == 0 ? 0 :
696 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
697 #endif
698 )
699 )
700 #endif /* #else #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
701
702 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0)) */
703
704 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,5,0))
705 LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue,
706
707 TP_PROTO(struct inode *inode),
708 TP_ARGS(inode),
709
710 TP_FIELDS(
711 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
712 ctf_integer(unsigned long, ino, inode->i_ino)
713 ctf_integer(unsigned long, state, inode->i_state)
714 ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
715 )
716 )
717 #endif
718
719 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template,
720
721 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
722
723 TP_ARGS(usec_timeout, usec_delayed),
724
725 TP_FIELDS(
726 ctf_integer(unsigned int, usec_timeout, usec_timeout)
727 ctf_integer(unsigned int, usec_delayed, usec_delayed)
728 )
729 )
730
731 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_congestion_wait,
732
733 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
734
735 TP_ARGS(usec_timeout, usec_delayed)
736 )
737
738 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_wait_iff_congested,
739
740 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
741
742 TP_ARGS(usec_timeout, usec_delayed)
743 )
744
745 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
746 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template,
747
748 TP_PROTO(struct inode *inode,
749 struct writeback_control *wbc,
750 unsigned long nr_to_write
751 ),
752
753 TP_ARGS(inode, wbc, nr_to_write),
754
755 TP_FIELDS(
756 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
757 ctf_integer(unsigned long, ino, inode->i_ino)
758 ctf_integer(unsigned long, state, inode->i_state)
759 ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
760 ctf_integer(unsigned long, writeback_index,
761 inode->i_mapping->writeback_index)
762 ctf_integer(long, nr_to_write, nr_to_write)
763 ctf_integer(unsigned long, wrote,
764 nr_to_write - wbc->nr_to_write)
765 )
766 )
767
768 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,5,0))
769 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode_requeue,
770 TP_PROTO(struct inode *inode,
771 struct writeback_control *wbc,
772 unsigned long nr_to_write),
773 TP_ARGS(inode, wbc, nr_to_write)
774 )
775 #endif
776
777 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode,
778 TP_PROTO(struct inode *inode,
779 struct writeback_control *wbc,
780 unsigned long nr_to_write),
781 TP_ARGS(inode, wbc, nr_to_write)
782 )
783 #endif
784
785 #endif /* LTTNG_TRACE_WRITEBACK_H */
786
787 /* This part must be outside protection */
788 #include <lttng/define_trace.h>
LTTng 2.0/0.x modules
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