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Fix: do not use bdi_unknown_name symbol
[lttng-modules.git] / instrumentation / events / lttng-module / writeback.h
1 #undef TRACE_SYSTEM
2 #define TRACE_SYSTEM writeback
3
4 #if !defined(LTTNG_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
5 #define LTTNG_TRACE_WRITEBACK_H
6
7 #include <probes/lttng-tracepoint-event.h>
8 #include <linux/tracepoint.h>
9 #include <linux/backing-dev.h>
10 #include <linux/writeback.h>
11 #include <lttng-kernel-version.h>
12
13 #ifndef _TRACE_WRITEBACK_DEF_
14 #define _TRACE_WRITEBACK_DEF_
15
16 /*
17 * Use the GPL-exported bdi_dev_name introduced in kernel 5.7. Do not use
18 * static inline bdi_dev_name in prior kernels because it uses the bdi_unknown_name
19 * symbol which is not exported to GPL modules.
20 */
21 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,7,0))
22 static inline const char *lttng_bdi_dev_name(struct backing_dev_info *bdi)
23 {
24 return bdi_dev_name(bdi);
25 }
26 #else
27 static inline const char *lttng_bdi_dev_name(struct backing_dev_info *bdi)
28 {
29 if (!bdi || !bdi->dev)
30 return "(unknown)";
31 return dev_name(bdi->dev);
32 }
33 #endif
34
35 /*
36 * Vanilla kernels before 4.0 do not implement inode_to_bdi
37 * RHEL kernels before 3.10.0-327.10.1 do not implement inode_to_bdi
38 * RHEL kernel 3.10.0-327.10.1 has inode_to_bdi
39 * RHEL kernel 3.10.0-327.13.1 includes a partial merge of upstream
40 * commit a212b105b07d75b48b1a166378282e8a77fbf53d which inlines
41 * inode_to_bdi but not sb_is_blkdev_sb making it unusable by modules.
42 */
43 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(4,0,0))
44 static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode)
45 {
46 struct super_block *sb;
47
48 if (!inode)
49 return &noop_backing_dev_info;
50
51 sb = inode->i_sb;
52
53 if (strcmp(sb->s_type->name, "bdev") == 0)
54 return inode->i_mapping->backing_dev_info;
55
56 return sb->s_bdi;
57 }
58 #else
59 static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode)
60 {
61 return inode_to_bdi(inode);
62 }
63 #endif /* #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(4,0,0)) */
64
65 #endif
66
67 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0))
68 #define show_inode_state(state) \
69 __print_flags(state, "|", \
70 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
71 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
72 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
73 {I_NEW, "I_NEW"}, \
74 {I_WILL_FREE, "I_WILL_FREE"}, \
75 {I_FREEING, "I_FREEING"}, \
76 {I_CLEAR, "I_CLEAR"}, \
77 {I_SYNC, "I_SYNC"}, \
78 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
79 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
80 {I_REFERENCED, "I_REFERENCED"} \
81 )
82 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0)) */
83 #define show_inode_state(state) \
84 __print_flags(state, "|", \
85 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
86 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
87 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
88 {I_NEW, "I_NEW"}, \
89 {I_WILL_FREE, "I_WILL_FREE"}, \
90 {I_FREEING, "I_FREEING"}, \
91 {I_CLEAR, "I_CLEAR"}, \
92 {I_SYNC, "I_SYNC"}, \
93 {I_REFERENCED, "I_REFERENCED"} \
94 )
95 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0)) */
96
97 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0))
98
99 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
100 TP_PROTO(struct page *page, struct address_space *mapping),
101 TP_ARGS(page, mapping),
102 TP_FIELDS(
103 ctf_string(name, lttng_bdi_dev_name(mapping ? lttng_inode_to_bdi(mapping->host) : NULL))
104 ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0)
105 ctf_integer(pgoff_t, index, page->index)
106 )
107 )
108
109 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
110 TP_PROTO(struct inode *inode, int flags),
111 TP_ARGS(inode, flags),
112 TP_FIELDS(
113 /* may be called for files on pseudo FSes w/ unregistered bdi */
114 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
115 ctf_integer(unsigned long, ino, inode->i_ino)
116 ctf_integer(unsigned long, state, inode->i_state)
117 ctf_integer(unsigned long, flags, flags)
118 )
119 )
120 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
121 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
122 TP_PROTO(struct inode *inode, int flags), \
123 TP_ARGS(inode, flags))
124 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
125 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
126 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty)
127
128 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
129 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
130 TP_ARGS(inode, wbc),
131 TP_FIELDS(
132 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
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) \
139 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
140 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
141 TP_ARGS(inode, wbc))
142 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
143 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
144
145 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0))
146
147 LTTNG_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_string(name, lttng_bdi_dev_name(mapping ? mapping->backing_dev_info : NULL))
152 ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0)
153 ctf_integer(pgoff_t, index, page->index)
154 )
155 )
156
157 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
158 TP_PROTO(struct inode *inode, int flags),
159 TP_ARGS(inode, flags),
160 TP_FIELDS(
161 /* may be called for files on pseudo FSes w/ unregistered bdi */
162 ctf_string(name, lttng_bdi_dev_name(inode->i_mapping->backing_dev_info))
163 ctf_integer(unsigned long, ino, inode->i_ino)
164 ctf_integer(unsigned long, flags, flags)
165 )
166 )
167 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
168 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
169 TP_PROTO(struct inode *inode, int flags), \
170 TP_ARGS(inode, flags))
171 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
172 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
173
174 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
175 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
176 TP_ARGS(inode, wbc),
177 TP_FIELDS(
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(int, sync_mode, wbc->sync_mode)
181 )
182 )
183
184 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
185 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
186 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
187 TP_ARGS(inode, wbc))
188 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
189 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
190
191 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) */
192
193 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
194
195 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
196 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work),
197 TP_ARGS(wb, work),
198 TP_FIELDS(
199 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
200 )
201 )
202
203 #else
204
205 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
206 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
207 TP_ARGS(bdi, work),
208 TP_FIELDS(
209 ctf_string(name, lttng_bdi_dev_name(bdi))
210 )
211 )
212
213 #endif /* #else if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
214
215 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
216
217 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
218 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
219 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
220 TP_ARGS(wb, work))
221
222 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
223
224 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
225 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
226 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
227 TP_ARGS(bdi, work))
228
229 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
230
231 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread)
232 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue)
233 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec)
234 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
235 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start)
236 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written)
237 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait)
238 #endif
239
240 LTTNG_TRACEPOINT_EVENT(writeback_pages_written,
241 TP_PROTO(long pages_written),
242 TP_ARGS(pages_written),
243 TP_FIELDS(
244 ctf_integer(long, pages, pages_written)
245 )
246 )
247
248 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
249
250 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
251 TP_PROTO(struct bdi_writeback *wb),
252 TP_ARGS(wb),
253 TP_FIELDS(
254 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
255 )
256 )
257
258 #undef DEFINE_WRITEBACK_EVENT
259 #define DEFINE_WRITEBACK_EVENT(name) \
260 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
261 TP_PROTO(struct bdi_writeback *wb), \
262 TP_ARGS(wb))
263
264 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
265 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
266 TP_PROTO(struct bdi_writeback *wb), \
267 TP_ARGS(wb))
268
269 LTTNG_TRACEPOINT_EVENT(writeback_bdi_register,
270 TP_PROTO(struct backing_dev_info *bdi),
271 TP_ARGS(bdi),
272 TP_FIELDS(
273 ctf_string(name, lttng_bdi_dev_name(bdi))
274 )
275 )
276
277 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
278
279 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
280 TP_PROTO(struct backing_dev_info *bdi),
281 TP_ARGS(bdi),
282 TP_FIELDS(
283 ctf_string(name, lttng_bdi_dev_name(bdi))
284 )
285 )
286
287 #undef DEFINE_WRITEBACK_EVENT
288 #define DEFINE_WRITEBACK_EVENT(name) \
289 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
290 TP_PROTO(struct backing_dev_info *bdi), \
291 TP_ARGS(bdi))
292
293 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
294 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
295 TP_PROTO(struct backing_dev_info *bdi), \
296 TP_ARGS(bdi))
297
298 DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
299
300 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
301
302 DEFINE_WRITEBACK_EVENT(writeback_nowork)
303 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(2,6,38))
304 DEFINE_WRITEBACK_EVENT(writeback_wake_background)
305 #endif
306 DEFINE_WRITEBACK_EVENT(writeback_wake_thread)
307 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread)
308 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister)
309 DEFINE_WRITEBACK_EVENT(writeback_thread_start)
310 DEFINE_WRITEBACK_EVENT(writeback_thread_stop)
311 #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
312 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start)
313 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait)
314
315 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written,
316
317 writeback_balance_dirty_written,
318
319 TP_PROTO(struct backing_dev_info *bdi, int written),
320
321 TP_ARGS(bdi, written),
322
323 TP_FIELDS(
324 ctf_string(name, lttng_bdi_dev_name(bdi))
325 ctf_integer(int, written, written)
326 )
327 )
328 #endif
329
330 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class,
331 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
332 TP_ARGS(wbc, bdi),
333 TP_FIELDS(
334 ctf_string(name, lttng_bdi_dev_name(bdi))
335 ctf_integer(long, nr_to_write, wbc->nr_to_write)
336 ctf_integer(long, pages_skipped, wbc->pages_skipped)
337 ctf_integer(int, sync_mode, wbc->sync_mode)
338 ctf_integer(int, for_kupdate, wbc->for_kupdate)
339 ctf_integer(int, for_background, wbc->for_background)
340 ctf_integer(int, for_reclaim, wbc->for_reclaim)
341 ctf_integer(int, range_cyclic, wbc->range_cyclic)
342 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,1,0))
343 ctf_integer(int, more_io, wbc->more_io)
344 ctf_integer(unsigned long, older_than_this,
345 wbc->older_than_this ? *wbc->older_than_this : 0)
346 #endif
347 ctf_integer(long, range_start, (long) wbc->range_start)
348 ctf_integer(long, range_end, (long) wbc->range_end)
349 )
350 )
351
352 #undef DEFINE_WBC_EVENT
353 #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
354 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
355 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
356 TP_ARGS(wbc, bdi))
357 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,1,0))
358 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start, writeback_wbc_writeback_start)
359 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written, writeback_wbc_writeback_written)
360 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait, writeback_wbc_writeback_wait)
361 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start)
362 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written)
363 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait)
364 #endif
365 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage)
366
367 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,9,0) || \
368 LTTNG_KERNEL_RANGE(5,8,6, 5,9,0) || \
369 LTTNG_KERNEL_RANGE(5,4,62, 5,5,0) || \
370 LTTNG_KERNEL_RANGE(4,19,143, 4,20,0) || \
371 LTTNG_KERNEL_RANGE(4,14,196, 4,15,0) || \
372 LTTNG_KERNEL_RANGE(4,9,235, 4,10,0) || \
373 LTTNG_KERNEL_RANGE(4,4,235, 4,5,0) || \
374 LTTNG_UBUNTU_KERNEL_RANGE(4,15,18,119, 4,16,0,0))
375 LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
376 TP_PROTO(struct bdi_writeback *wb,
377 struct wb_writeback_work *work,
378 unsigned long dirtied_before,
379 int moved),
380 TP_ARGS(wb, work, dirtied_before, moved),
381 TP_FIELDS(
382 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
383 ctf_integer(unsigned long, older, dirtied_before)
384 ctf_integer(int, moved, moved)
385 )
386 )
387 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0))
388 LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
389 TP_PROTO(struct bdi_writeback *wb,
390 struct wb_writeback_work *work,
391 int moved),
392 TP_ARGS(wb, work, moved),
393 TP_FIELDS(
394 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
395 ctf_integer(int, moved, moved)
396 )
397 )
398 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
399 LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
400 TP_PROTO(struct bdi_writeback *wb,
401 unsigned long *older_than_this,
402 int moved),
403 TP_ARGS(wb, older_than_this, moved),
404 TP_FIELDS(
405 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
406 ctf_integer(unsigned long, older,
407 older_than_this ? *older_than_this : 0)
408 ctf_integer(long, age,
409 older_than_this ?
410 (jiffies - *older_than_this) * 1000 / HZ
411 : -1)
412 ctf_integer(int, moved, moved)
413 )
414 )
415 #endif
416
417 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0))
418 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
419
420 writeback_global_dirty_state,
421
422 TP_PROTO(unsigned long background_thresh,
423 unsigned long dirty_thresh
424 ),
425
426 TP_ARGS(background_thresh,
427 dirty_thresh
428 ),
429
430 TP_FIELDS(
431 ctf_integer(unsigned long, nr_dirty, global_node_page_state(NR_FILE_DIRTY))
432 ctf_integer(unsigned long, nr_writeback, global_node_page_state(NR_WRITEBACK))
433 ctf_integer(unsigned long, nr_unstable, global_node_page_state(NR_UNSTABLE_NFS))
434 ctf_integer(unsigned long, nr_dirtied, global_node_page_state(NR_DIRTIED))
435 ctf_integer(unsigned long, nr_written, global_node_page_state(NR_WRITTEN))
436 ctf_integer(unsigned long, background_thresh, background_thresh)
437 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
438 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
439 )
440 )
441 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
442 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
443
444 writeback_global_dirty_state,
445
446 TP_PROTO(unsigned long background_thresh,
447 unsigned long dirty_thresh
448 ),
449
450 TP_ARGS(background_thresh,
451 dirty_thresh
452 ),
453
454 TP_FIELDS(
455 ctf_integer(unsigned long, nr_dirty, global_page_state(NR_FILE_DIRTY))
456 ctf_integer(unsigned long, nr_writeback, global_page_state(NR_WRITEBACK))
457 ctf_integer(unsigned long, nr_unstable, global_page_state(NR_UNSTABLE_NFS))
458 ctf_integer(unsigned long, nr_dirtied, global_page_state(NR_DIRTIED))
459 ctf_integer(unsigned long, nr_written, global_page_state(NR_WRITTEN))
460 ctf_integer(unsigned long, background_thresh, background_thresh)
461 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
462 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
463 )
464 )
465 #endif
466
467 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0))
468
469 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
470
471 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
472
473 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
474
475 writeback_bdi_dirty_ratelimit,
476
477 TP_PROTO(struct bdi_writeback *wb,
478 unsigned long dirty_rate,
479 unsigned long task_ratelimit),
480
481 TP_ARGS(wb, dirty_rate, task_ratelimit),
482
483 TP_FIELDS(
484 ctf_string(bdi, lttng_bdi_dev_name(wb->bdi))
485 ctf_integer(unsigned long, write_bw, KBps(wb->bdi->wb.write_bandwidth))
486 ctf_integer(unsigned long, avg_write_bw, KBps(wb->bdi->wb.avg_write_bandwidth))
487 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
488 ctf_integer(unsigned long, dirty_ratelimit, KBps(wb->bdi->wb.dirty_ratelimit))
489 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
490 ctf_integer(unsigned long, balanced_dirty_ratelimit,
491 KBps(wb->bdi->wb.balanced_dirty_ratelimit))
492 )
493 )
494
495 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0))
496
497 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
498
499 writeback_bdi_dirty_ratelimit,
500
501 TP_PROTO(struct backing_dev_info *bdi,
502 unsigned long dirty_rate,
503 unsigned long task_ratelimit),
504
505 TP_ARGS(bdi, dirty_rate, task_ratelimit),
506
507 TP_FIELDS(
508 ctf_string(bdi, lttng_bdi_dev_name(bdi))
509 ctf_integer(unsigned long, write_bw, KBps(bdi->wb.write_bandwidth))
510 ctf_integer(unsigned long, avg_write_bw, KBps(bdi->wb.avg_write_bandwidth))
511 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
512 ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->wb.dirty_ratelimit))
513 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
514 ctf_integer(unsigned long, balanced_dirty_ratelimit,
515 KBps(bdi->wb.balanced_dirty_ratelimit))
516 )
517 )
518
519 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */
520
521 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
522
523 writeback_bdi_dirty_ratelimit,
524
525 TP_PROTO(struct backing_dev_info *bdi,
526 unsigned long dirty_rate,
527 unsigned long task_ratelimit),
528
529 TP_ARGS(bdi, dirty_rate, task_ratelimit),
530
531 TP_FIELDS(
532 ctf_string(bdi, lttng_bdi_dev_name(bdi))
533 ctf_integer(unsigned long, write_bw, KBps(bdi->write_bandwidth))
534 ctf_integer(unsigned long, avg_write_bw, KBps(bdi->avg_write_bandwidth))
535 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
536 ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->dirty_ratelimit))
537 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
538 ctf_integer(unsigned long, balanced_dirty_ratelimit,
539 KBps(bdi->balanced_dirty_ratelimit))
540 )
541 )
542
543 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */
544
545 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
546
547 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
548
549 writeback_balance_dirty_pages,
550
551 TP_PROTO(struct bdi_writeback *wb,
552 unsigned long thresh,
553 unsigned long bg_thresh,
554 unsigned long dirty,
555 unsigned long bdi_thresh,
556 unsigned long bdi_dirty,
557 unsigned long dirty_ratelimit,
558 unsigned long task_ratelimit,
559 unsigned long dirtied,
560 unsigned long period,
561 long pause,
562 unsigned long start_time),
563
564 TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
565 dirty_ratelimit, task_ratelimit,
566 dirtied, period, pause, start_time
567 ),
568
569 TP_FIELDS(
570 ctf_string(bdi, lttng_bdi_dev_name(wb->bdi))
571 ctf_integer(unsigned long, limit, global_dirty_limit)
572 ctf_integer(unsigned long, setpoint,
573 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
574 ctf_integer(unsigned long, dirty, dirty)
575 ctf_integer(unsigned long, bdi_setpoint,
576 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
577 bdi_thresh / (thresh + 1))
578 ctf_integer(unsigned long, bdi_dirty, bdi_dirty)
579 ctf_integer(unsigned long, dirty_ratelimit,
580 KBps(dirty_ratelimit))
581 ctf_integer(unsigned long, task_ratelimit,
582 KBps(task_ratelimit))
583 ctf_integer(unsigned int, dirtied, dirtied)
584 ctf_integer(unsigned int, dirtied_pause,
585 current->nr_dirtied_pause)
586 ctf_integer(unsigned long, paused,
587 (jiffies - start_time) * 1000 / HZ)
588 ctf_integer(long, pause, pause * 1000 / HZ)
589 ctf_integer(unsigned long, period,
590 period * 1000 / HZ)
591 ctf_integer(long, think,
592 current->dirty_paused_when == 0 ? 0 :
593 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
594 )
595 )
596
597 #else /* #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
598
599 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
600
601 writeback_balance_dirty_pages,
602
603 TP_PROTO(struct backing_dev_info *bdi,
604 unsigned long thresh,
605 unsigned long bg_thresh,
606 unsigned long dirty,
607 unsigned long bdi_thresh,
608 unsigned long bdi_dirty,
609 unsigned long dirty_ratelimit,
610 unsigned long task_ratelimit,
611 unsigned long dirtied,
612 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
613 unsigned long period,
614 #endif
615 long pause,
616 unsigned long start_time),
617
618 TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
619 dirty_ratelimit, task_ratelimit,
620 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
621 dirtied, period, pause, start_time
622 #else
623 dirtied, pause, start_time
624 #endif
625 ),
626
627 TP_FIELDS(
628 ctf_string(bdi, lttng_bdi_dev_name(bdi))
629 ctf_integer(unsigned long, limit, global_dirty_limit)
630 ctf_integer(unsigned long, setpoint,
631 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
632 ctf_integer(unsigned long, dirty, dirty)
633 ctf_integer(unsigned long, bdi_setpoint,
634 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
635 bdi_thresh / (thresh + 1))
636 ctf_integer(unsigned long, bdi_dirty, bdi_dirty)
637 ctf_integer(unsigned long, dirty_ratelimit,
638 KBps(dirty_ratelimit))
639 ctf_integer(unsigned long, task_ratelimit,
640 KBps(task_ratelimit))
641 ctf_integer(unsigned int, dirtied, dirtied)
642 ctf_integer(unsigned int, dirtied_pause,
643 current->nr_dirtied_pause)
644 ctf_integer(unsigned long, paused,
645 (jiffies - start_time) * 1000 / HZ)
646 ctf_integer(long, pause, pause * 1000 / HZ)
647 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
648 ctf_integer(unsigned long, period,
649 period * 1000 / HZ)
650 ctf_integer(long, think,
651 current->dirty_paused_when == 0 ? 0 :
652 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
653 #endif
654 )
655 )
656 #endif /* #else #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
657
658 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0)) */
659
660 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,5,0))
661 LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue,
662
663 TP_PROTO(struct inode *inode),
664 TP_ARGS(inode),
665
666 TP_FIELDS(
667 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
668 ctf_integer(unsigned long, ino, inode->i_ino)
669 ctf_integer(unsigned long, state, inode->i_state)
670 ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
671 )
672 )
673 #endif
674
675 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(2,6,37))
676 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template,
677
678 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
679
680 TP_ARGS(usec_timeout, usec_delayed),
681
682 TP_FIELDS(
683 ctf_integer(unsigned int, usec_timeout, usec_timeout)
684 ctf_integer(unsigned int, usec_delayed, usec_delayed)
685 )
686 )
687
688 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_congestion_wait,
689
690 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
691
692 TP_ARGS(usec_timeout, usec_delayed)
693 )
694
695 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_wait_iff_congested,
696
697 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
698
699 TP_ARGS(usec_timeout, usec_delayed)
700 )
701 #endif
702
703 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
704 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template,
705
706 TP_PROTO(struct inode *inode,
707 struct writeback_control *wbc,
708 unsigned long nr_to_write
709 ),
710
711 TP_ARGS(inode, wbc, nr_to_write),
712
713 TP_FIELDS(
714 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
715 ctf_integer(unsigned long, ino, inode->i_ino)
716 ctf_integer(unsigned long, state, inode->i_state)
717 ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
718 ctf_integer(unsigned long, writeback_index,
719 inode->i_mapping->writeback_index)
720 ctf_integer(long, nr_to_write, nr_to_write)
721 ctf_integer(unsigned long, wrote,
722 nr_to_write - wbc->nr_to_write)
723 )
724 )
725
726 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,5,0))
727 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode_requeue,
728 TP_PROTO(struct inode *inode,
729 struct writeback_control *wbc,
730 unsigned long nr_to_write),
731 TP_ARGS(inode, wbc, nr_to_write)
732 )
733 #endif
734
735 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode,
736 TP_PROTO(struct inode *inode,
737 struct writeback_control *wbc,
738 unsigned long nr_to_write),
739 TP_ARGS(inode, wbc, nr_to_write)
740 )
741 #endif
742
743 #endif /* LTTNG_TRACE_WRITEBACK_H */
744
745 /* This part must be outside protection */
746 #include <probes/define_trace.h>
LTTng 2.0/0.x modules
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