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fix: adjust ranges for RHEL 8.2 and 8.3
[lttng-modules.git] / instrumentation / events / lttng-module / writeback.h
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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))
23static inline const char *lttng_bdi_dev_name(struct backing_dev_info *bdi)
24{
25 return bdi_dev_name(bdi);
26}
27#else
28static 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))
45static 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
60static 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_KERNEL_RANGE(4,14,218, 4,15,0) || \
76 LTTNG_KERNEL_RANGE(4,19,172, 4,20,0) || \
77 LTTNG_KERNEL_RANGE(5,4,94, 5,5,0) || \
78 LTTNG_UBUNTU_KERNEL_RANGE(4,15,18,141, 4,16,0,0) || \
79 LTTNG_RHEL_KERNEL_RANGE(4,18,0,240,0,0, 4,19,0,0,0,0))
80#define show_inode_state(state) \
81 __print_flags(state, "|", \
82 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
83 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
84 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
85 {I_NEW, "I_NEW"}, \
86 {I_WILL_FREE, "I_WILL_FREE"}, \
87 {I_FREEING, "I_FREEING"}, \
88 {I_CLEAR, "I_CLEAR"}, \
89 {I_SYNC, "I_SYNC"}, \
90 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
91 {I_REFERENCED, "I_REFERENCED"} \
92 )
93#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0))
94#define show_inode_state(state) \
95 __print_flags(state, "|", \
96 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
97 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
98 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
99 {I_NEW, "I_NEW"}, \
100 {I_WILL_FREE, "I_WILL_FREE"}, \
101 {I_FREEING, "I_FREEING"}, \
102 {I_CLEAR, "I_CLEAR"}, \
103 {I_SYNC, "I_SYNC"}, \
104 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
105 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
106 {I_REFERENCED, "I_REFERENCED"} \
107 )
108#else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0)) */
109#define show_inode_state(state) \
110 __print_flags(state, "|", \
111 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
112 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
113 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
114 {I_NEW, "I_NEW"}, \
115 {I_WILL_FREE, "I_WILL_FREE"}, \
116 {I_FREEING, "I_FREEING"}, \
117 {I_CLEAR, "I_CLEAR"}, \
118 {I_SYNC, "I_SYNC"}, \
119 {I_REFERENCED, "I_REFERENCED"} \
120 )
121#endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0)) */
122
123#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0))
124
125LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
126 TP_PROTO(struct page *page, struct address_space *mapping),
127 TP_ARGS(page, mapping),
128 TP_FIELDS(
129 ctf_string(name, lttng_bdi_dev_name(mapping ? lttng_inode_to_bdi(mapping->host) : NULL))
130 ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0)
131 ctf_integer(pgoff_t, index, page->index)
132 )
133)
134
135LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
136 TP_PROTO(struct inode *inode, int flags),
137 TP_ARGS(inode, flags),
138 TP_FIELDS(
139 /* may be called for files on pseudo FSes w/ unregistered bdi */
140 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
141 ctf_integer(unsigned long, ino, inode->i_ino)
142 ctf_integer(unsigned long, state, inode->i_state)
143 ctf_integer(unsigned long, flags, flags)
144 )
145)
146#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
147LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
148 TP_PROTO(struct inode *inode, int flags), \
149 TP_ARGS(inode, flags))
150LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
151LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
152LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty)
153
154LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
155 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
156 TP_ARGS(inode, wbc),
157 TP_FIELDS(
158 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
159 ctf_integer(unsigned long, ino, inode->i_ino)
160 ctf_integer(int, sync_mode, wbc->sync_mode)
161 )
162)
163
164#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
165LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
166 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
167 TP_ARGS(inode, wbc))
168LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
169LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
170
171#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0))
172
173LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
174 TP_PROTO(struct page *page, struct address_space *mapping),
175 TP_ARGS(page, mapping),
176 TP_FIELDS(
177 ctf_string(name, lttng_bdi_dev_name(mapping ? mapping->backing_dev_info : NULL))
178 ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0)
179 ctf_integer(pgoff_t, index, page->index)
180 )
181)
182
183LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
184 TP_PROTO(struct inode *inode, int flags),
185 TP_ARGS(inode, flags),
186 TP_FIELDS(
187 /* may be called for files on pseudo FSes w/ unregistered bdi */
188 ctf_string(name, lttng_bdi_dev_name(inode->i_mapping->backing_dev_info))
189 ctf_integer(unsigned long, ino, inode->i_ino)
190 ctf_integer(unsigned long, flags, flags)
191 )
192)
193#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
194LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
195 TP_PROTO(struct inode *inode, int flags), \
196 TP_ARGS(inode, flags))
197LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
198LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
199
200LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
201 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
202 TP_ARGS(inode, wbc),
203 TP_FIELDS(
204 ctf_string(name, lttng_bdi_dev_name(inode->i_mapping->backing_dev_info))
205 ctf_integer(unsigned long, ino, inode->i_ino)
206 ctf_integer(int, sync_mode, wbc->sync_mode)
207 )
208)
209
210#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
211LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
212 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
213 TP_ARGS(inode, wbc))
214LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
215LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
216
217#endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) */
218
219#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
220
221LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
222 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work),
223 TP_ARGS(wb, work),
224 TP_FIELDS(
225 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
226 )
227)
228
229#else
230
231LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
232 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
233 TP_ARGS(bdi, work),
234 TP_FIELDS(
235 ctf_string(name, lttng_bdi_dev_name(bdi))
236 )
237)
238
239#endif /* #else if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
240
241#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_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 bdi_writeback *wb, struct wb_writeback_work *work), \
246 TP_ARGS(wb, work))
247
248#else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
249
250#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
251LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
252 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
253 TP_ARGS(bdi, work))
254
255#endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
256
257LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread)
258LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue)
259LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec)
260#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
261LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start)
262LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written)
263LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait)
264#endif
265
266LTTNG_TRACEPOINT_EVENT(writeback_pages_written,
267 TP_PROTO(long pages_written),
268 TP_ARGS(pages_written),
269 TP_FIELDS(
270 ctf_integer(long, pages, pages_written)
271 )
272)
273
274#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
275
276LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
277 TP_PROTO(struct bdi_writeback *wb),
278 TP_ARGS(wb),
279 TP_FIELDS(
280 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
281 )
282)
283
284#undef DEFINE_WRITEBACK_EVENT
285#define DEFINE_WRITEBACK_EVENT(name) \
286LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
287 TP_PROTO(struct bdi_writeback *wb), \
288 TP_ARGS(wb))
289
290#define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
291LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
292 TP_PROTO(struct bdi_writeback *wb), \
293 TP_ARGS(wb))
294
295LTTNG_TRACEPOINT_EVENT(writeback_bdi_register,
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#else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
304
305LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
306 TP_PROTO(struct backing_dev_info *bdi),
307 TP_ARGS(bdi),
308 TP_FIELDS(
309 ctf_string(name, lttng_bdi_dev_name(bdi))
310 )
311)
312
313#undef DEFINE_WRITEBACK_EVENT
314#define DEFINE_WRITEBACK_EVENT(name) \
315LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
316 TP_PROTO(struct backing_dev_info *bdi), \
317 TP_ARGS(bdi))
318
319#define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
320LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
321 TP_PROTO(struct backing_dev_info *bdi), \
322 TP_ARGS(bdi))
323
324DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
325
326#endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
327
328DEFINE_WRITEBACK_EVENT(writeback_nowork)
329#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(2,6,38))
330DEFINE_WRITEBACK_EVENT(writeback_wake_background)
331#endif
332DEFINE_WRITEBACK_EVENT(writeback_wake_thread)
333DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread)
334DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister)
335DEFINE_WRITEBACK_EVENT(writeback_thread_start)
336DEFINE_WRITEBACK_EVENT(writeback_thread_stop)
337#if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
338DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start)
339DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait)
340
341LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written,
342
343 writeback_balance_dirty_written,
344
345 TP_PROTO(struct backing_dev_info *bdi, int written),
346
347 TP_ARGS(bdi, written),
348
349 TP_FIELDS(
350 ctf_string(name, lttng_bdi_dev_name(bdi))
351 ctf_integer(int, written, written)
352 )
353)
354#endif
355
356LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class,
357 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
358 TP_ARGS(wbc, bdi),
359 TP_FIELDS(
360 ctf_string(name, lttng_bdi_dev_name(bdi))
361 ctf_integer(long, nr_to_write, wbc->nr_to_write)
362 ctf_integer(long, pages_skipped, wbc->pages_skipped)
363 ctf_integer(int, sync_mode, wbc->sync_mode)
364 ctf_integer(int, for_kupdate, wbc->for_kupdate)
365 ctf_integer(int, for_background, wbc->for_background)
366 ctf_integer(int, for_reclaim, wbc->for_reclaim)
367 ctf_integer(int, range_cyclic, wbc->range_cyclic)
368#if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,1,0))
369 ctf_integer(int, more_io, wbc->more_io)
370 ctf_integer(unsigned long, older_than_this,
371 wbc->older_than_this ? *wbc->older_than_this : 0)
372#endif
373 ctf_integer(long, range_start, (long) wbc->range_start)
374 ctf_integer(long, range_end, (long) wbc->range_end)
375 )
376)
377
378#undef DEFINE_WBC_EVENT
379#define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
380LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
381 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
382 TP_ARGS(wbc, bdi))
383#if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,1,0))
384LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start, writeback_wbc_writeback_start)
385LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written, writeback_wbc_writeback_written)
386LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait, writeback_wbc_writeback_wait)
387LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start)
388LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written)
389LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait)
390#endif
391LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage)
392
393#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,9,0) || \
394 LTTNG_KERNEL_RANGE(5,8,6, 5,9,0) || \
395 LTTNG_KERNEL_RANGE(5,4,62, 5,5,0) || \
396 LTTNG_KERNEL_RANGE(4,19,143, 4,20,0) || \
397 LTTNG_KERNEL_RANGE(4,14,196, 4,15,0) || \
398 LTTNG_KERNEL_RANGE(4,9,235, 4,10,0) || \
399 LTTNG_KERNEL_RANGE(4,4,235, 4,5,0) || \
400 LTTNG_UBUNTU_KERNEL_RANGE(4,15,18,119, 4,16,0,0) || \
401 LTTNG_RHEL_KERNEL_RANGE(4,18,0,240,0,0, 4,19,0,0,0,0))
402LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
403 TP_PROTO(struct bdi_writeback *wb,
404 struct wb_writeback_work *work,
405 unsigned long dirtied_before,
406 int moved),
407 TP_ARGS(wb, work, dirtied_before, moved),
408 TP_FIELDS(
409 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
410 ctf_integer(unsigned long, older, dirtied_before)
411 ctf_integer(int, moved, moved)
412 )
413)
414#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0))
415LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
416 TP_PROTO(struct bdi_writeback *wb,
417 struct wb_writeback_work *work,
418 int moved),
419 TP_ARGS(wb, work, moved),
420 TP_FIELDS(
421 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
422 ctf_integer(int, moved, moved)
423 )
424)
425#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
426LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
427 TP_PROTO(struct bdi_writeback *wb,
428 unsigned long *older_than_this,
429 int moved),
430 TP_ARGS(wb, older_than_this, moved),
431 TP_FIELDS(
432 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
433 ctf_integer(unsigned long, older,
434 older_than_this ? *older_than_this : 0)
435 ctf_integer(long, age,
436 older_than_this ?
437 (jiffies - *older_than_this) * 1000 / HZ
438 : -1)
439 ctf_integer(int, moved, moved)
440 )
441)
442#endif
443
444#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,8,0))
445LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
446
447 writeback_global_dirty_state,
448
449 TP_PROTO(unsigned long background_thresh,
450 unsigned long dirty_thresh
451 ),
452
453 TP_ARGS(background_thresh,
454 dirty_thresh
455 ),
456
457 TP_FIELDS(
458 ctf_integer(unsigned long, nr_dirty, global_node_page_state(NR_FILE_DIRTY))
459 ctf_integer(unsigned long, nr_writeback, global_node_page_state(NR_WRITEBACK))
460 ctf_integer(unsigned long, nr_dirtied, global_node_page_state(NR_DIRTIED))
461 ctf_integer(unsigned long, nr_written, global_node_page_state(NR_WRITTEN))
462 ctf_integer(unsigned long, background_thresh, background_thresh)
463 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
464 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
465 )
466)
467#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0))
468LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
469
470 writeback_global_dirty_state,
471
472 TP_PROTO(unsigned long background_thresh,
473 unsigned long dirty_thresh
474 ),
475
476 TP_ARGS(background_thresh,
477 dirty_thresh
478 ),
479
480 TP_FIELDS(
481 ctf_integer(unsigned long, nr_dirty, global_node_page_state(NR_FILE_DIRTY))
482 ctf_integer(unsigned long, nr_writeback, global_node_page_state(NR_WRITEBACK))
483 ctf_integer(unsigned long, nr_unstable, global_node_page_state(NR_UNSTABLE_NFS))
484 ctf_integer(unsigned long, nr_dirtied, global_node_page_state(NR_DIRTIED))
485 ctf_integer(unsigned long, nr_written, global_node_page_state(NR_WRITTEN))
486 ctf_integer(unsigned long, background_thresh, background_thresh)
487 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
488 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
489 )
490)
491#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
492LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
493
494 writeback_global_dirty_state,
495
496 TP_PROTO(unsigned long background_thresh,
497 unsigned long dirty_thresh
498 ),
499
500 TP_ARGS(background_thresh,
501 dirty_thresh
502 ),
503
504 TP_FIELDS(
505 ctf_integer(unsigned long, nr_dirty, global_page_state(NR_FILE_DIRTY))
506 ctf_integer(unsigned long, nr_writeback, global_page_state(NR_WRITEBACK))
507 ctf_integer(unsigned long, nr_unstable, global_page_state(NR_UNSTABLE_NFS))
508 ctf_integer(unsigned long, nr_dirtied, global_page_state(NR_DIRTIED))
509 ctf_integer(unsigned long, nr_written, global_page_state(NR_WRITTEN))
510 ctf_integer(unsigned long, background_thresh, background_thresh)
511 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
512 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
513 )
514)
515#endif
516
517#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0))
518
519#define KBps(x) ((x) << (PAGE_SHIFT - 10))
520
521#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
522
523LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
524
525 writeback_bdi_dirty_ratelimit,
526
527 TP_PROTO(struct bdi_writeback *wb,
528 unsigned long dirty_rate,
529 unsigned long task_ratelimit),
530
531 TP_ARGS(wb, dirty_rate, task_ratelimit),
532
533 TP_FIELDS(
534 ctf_string(bdi, lttng_bdi_dev_name(wb->bdi))
535 ctf_integer(unsigned long, write_bw, KBps(wb->bdi->wb.write_bandwidth))
536 ctf_integer(unsigned long, avg_write_bw, KBps(wb->bdi->wb.avg_write_bandwidth))
537 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
538 ctf_integer(unsigned long, dirty_ratelimit, KBps(wb->bdi->wb.dirty_ratelimit))
539 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
540 ctf_integer(unsigned long, balanced_dirty_ratelimit,
541 KBps(wb->bdi->wb.balanced_dirty_ratelimit))
542 )
543)
544
545#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0))
546
547LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
548
549 writeback_bdi_dirty_ratelimit,
550
551 TP_PROTO(struct backing_dev_info *bdi,
552 unsigned long dirty_rate,
553 unsigned long task_ratelimit),
554
555 TP_ARGS(bdi, dirty_rate, task_ratelimit),
556
557 TP_FIELDS(
558 ctf_string(bdi, lttng_bdi_dev_name(bdi))
559 ctf_integer(unsigned long, write_bw, KBps(bdi->wb.write_bandwidth))
560 ctf_integer(unsigned long, avg_write_bw, KBps(bdi->wb.avg_write_bandwidth))
561 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
562 ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->wb.dirty_ratelimit))
563 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
564 ctf_integer(unsigned long, balanced_dirty_ratelimit,
565 KBps(bdi->wb.balanced_dirty_ratelimit))
566 )
567)
568
569#else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */
570
571LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
572
573 writeback_bdi_dirty_ratelimit,
574
575 TP_PROTO(struct backing_dev_info *bdi,
576 unsigned long dirty_rate,
577 unsigned long task_ratelimit),
578
579 TP_ARGS(bdi, dirty_rate, task_ratelimit),
580
581 TP_FIELDS(
582 ctf_string(bdi, lttng_bdi_dev_name(bdi))
583 ctf_integer(unsigned long, write_bw, KBps(bdi->write_bandwidth))
584 ctf_integer(unsigned long, avg_write_bw, KBps(bdi->avg_write_bandwidth))
585 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
586 ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->dirty_ratelimit))
587 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
588 ctf_integer(unsigned long, balanced_dirty_ratelimit,
589 KBps(bdi->balanced_dirty_ratelimit))
590 )
591)
592
593#endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */
594
595#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
596
597LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
598
599 writeback_balance_dirty_pages,
600
601 TP_PROTO(struct bdi_writeback *wb,
602 unsigned long thresh,
603 unsigned long bg_thresh,
604 unsigned long dirty,
605 unsigned long bdi_thresh,
606 unsigned long bdi_dirty,
607 unsigned long dirty_ratelimit,
608 unsigned long task_ratelimit,
609 unsigned long dirtied,
610 unsigned long period,
611 long pause,
612 unsigned long start_time),
613
614 TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
615 dirty_ratelimit, task_ratelimit,
616 dirtied, period, pause, start_time
617 ),
618
619 TP_FIELDS(
620 ctf_string(bdi, lttng_bdi_dev_name(wb->bdi))
621 ctf_integer(unsigned long, limit, global_dirty_limit)
622 ctf_integer(unsigned long, setpoint,
623 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
624 ctf_integer(unsigned long, dirty, dirty)
625 ctf_integer(unsigned long, bdi_setpoint,
626 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
627 bdi_thresh / (thresh + 1))
628 ctf_integer(unsigned long, bdi_dirty, bdi_dirty)
629 ctf_integer(unsigned long, dirty_ratelimit,
630 KBps(dirty_ratelimit))
631 ctf_integer(unsigned long, task_ratelimit,
632 KBps(task_ratelimit))
633 ctf_integer(unsigned int, dirtied, dirtied)
634 ctf_integer(unsigned int, dirtied_pause,
635 current->nr_dirtied_pause)
636 ctf_integer(unsigned long, paused,
637 (jiffies - start_time) * 1000 / HZ)
638 ctf_integer(long, pause, pause * 1000 / HZ)
639 ctf_integer(unsigned long, period,
640 period * 1000 / HZ)
641 ctf_integer(long, think,
642 current->dirty_paused_when == 0 ? 0 :
643 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
644 )
645)
646
647#else /* #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
648
649LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
650
651 writeback_balance_dirty_pages,
652
653 TP_PROTO(struct backing_dev_info *bdi,
654 unsigned long thresh,
655 unsigned long bg_thresh,
656 unsigned long dirty,
657 unsigned long bdi_thresh,
658 unsigned long bdi_dirty,
659 unsigned long dirty_ratelimit,
660 unsigned long task_ratelimit,
661 unsigned long dirtied,
662#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
663 unsigned long period,
664#endif
665 long pause,
666 unsigned long start_time),
667
668 TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
669 dirty_ratelimit, task_ratelimit,
670#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
671 dirtied, period, pause, start_time
672#else
673 dirtied, pause, start_time
674#endif
675 ),
676
677 TP_FIELDS(
678 ctf_string(bdi, lttng_bdi_dev_name(bdi))
679 ctf_integer(unsigned long, limit, global_dirty_limit)
680 ctf_integer(unsigned long, setpoint,
681 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
682 ctf_integer(unsigned long, dirty, dirty)
683 ctf_integer(unsigned long, bdi_setpoint,
684 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
685 bdi_thresh / (thresh + 1))
686 ctf_integer(unsigned long, bdi_dirty, bdi_dirty)
687 ctf_integer(unsigned long, dirty_ratelimit,
688 KBps(dirty_ratelimit))
689 ctf_integer(unsigned long, task_ratelimit,
690 KBps(task_ratelimit))
691 ctf_integer(unsigned int, dirtied, dirtied)
692 ctf_integer(unsigned int, dirtied_pause,
693 current->nr_dirtied_pause)
694 ctf_integer(unsigned long, paused,
695 (jiffies - start_time) * 1000 / HZ)
696 ctf_integer(long, pause, pause * 1000 / HZ)
697#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
698 ctf_integer(unsigned long, period,
699 period * 1000 / HZ)
700 ctf_integer(long, think,
701 current->dirty_paused_when == 0 ? 0 :
702 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
703#endif
704 )
705)
706#endif /* #else #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
707
708#endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0)) */
709
710#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,5,0))
711LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue,
712
713 TP_PROTO(struct inode *inode),
714 TP_ARGS(inode),
715
716 TP_FIELDS(
717 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
718 ctf_integer(unsigned long, ino, inode->i_ino)
719 ctf_integer(unsigned long, state, inode->i_state)
720 ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
721 )
722)
723#endif
724
725#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(2,6,37))
726LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template,
727
728 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
729
730 TP_ARGS(usec_timeout, usec_delayed),
731
732 TP_FIELDS(
733 ctf_integer(unsigned int, usec_timeout, usec_timeout)
734 ctf_integer(unsigned int, usec_delayed, usec_delayed)
735 )
736)
737
738LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_congestion_wait,
739
740 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
741
742 TP_ARGS(usec_timeout, usec_delayed)
743)
744
745LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_wait_iff_congested,
746
747 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
748
749 TP_ARGS(usec_timeout, usec_delayed)
750)
751#endif
752
753#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
754LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template,
755
756 TP_PROTO(struct inode *inode,
757 struct writeback_control *wbc,
758 unsigned long nr_to_write
759 ),
760
761 TP_ARGS(inode, wbc, nr_to_write),
762
763 TP_FIELDS(
764 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
765 ctf_integer(unsigned long, ino, inode->i_ino)
766 ctf_integer(unsigned long, state, inode->i_state)
767 ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
768 ctf_integer(unsigned long, writeback_index,
769 inode->i_mapping->writeback_index)
770 ctf_integer(long, nr_to_write, nr_to_write)
771 ctf_integer(unsigned long, wrote,
772 nr_to_write - wbc->nr_to_write)
773 )
774)
775
776#if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,5,0))
777LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode_requeue,
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
785LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode,
786 TP_PROTO(struct inode *inode,
787 struct writeback_control *wbc,
788 unsigned long nr_to_write),
789 TP_ARGS(inode, wbc, nr_to_write)
790)
791#endif
792
793#endif /* LTTNG_TRACE_WRITEBACK_H */
794
795/* This part must be outside protection */
796#include <probes/define_trace.h>
LTTng 2.0/0.x modules
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