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