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