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