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Fix: writeback instrumentation for 4.2 kernels
[lttng-modules.git] / instrumentation / events / lttng-module / writeback.h
CommitLineData
b87700e3
AG		 1#undef TRACE_SYSTEM
2#define TRACE_SYSTEM writeback
3
3bc29f0a
MD		 4#if !defined(LTTNG_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
5#define LTTNG_TRACE_WRITEBACK_H
b87700e3 6
3bc29f0a 7#include "../../../probes/lttng-tracepoint-event.h"
aa634cd1 8#include <linux/tracepoint.h>
b87700e3
AG		 9#include <linux/backing-dev.h>
10#include <linux/writeback.h>
11#include <linux/version.h>
12
13#ifndef _TRACE_WRITEBACK_DEF_
14#define _TRACE_WRITEBACK_DEF_
9a8687aa
MD		 15
16#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0))
b87700e3
AG		 17static inline struct backing_dev_info *inode_to_bdi(struct inode *inode)
18{
19 struct super_block *sb = inode->i_sb;
20
21 if (strcmp(sb->s_type->name, "bdev") == 0)
22 return inode->i_mapping->backing_dev_info;
23
24 return sb->s_bdi;
25}
9a8687aa
MD		 26#endif /* #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0)) */
27
b87700e3
AG		 28#endif
29
9a8687aa
MD		 30#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
31#define show_inode_state(state) \
32 __print_flags(state, "|", \
33 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
34 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
35 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
36 {I_NEW, "I_NEW"}, \
37 {I_WILL_FREE, "I_WILL_FREE"}, \
38 {I_FREEING, "I_FREEING"}, \
39 {I_CLEAR, "I_CLEAR"}, \
40 {I_SYNC, "I_SYNC"}, \
41 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
42 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
43 {I_REFERENCED, "I_REFERENCED"} \
44 )
45#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
b87700e3
AG		 46#define show_inode_state(state) \
47 __print_flags(state, "|", \
48 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
49 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
50 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
51 {I_NEW, "I_NEW"}, \
52 {I_WILL_FREE, "I_WILL_FREE"}, \
53 {I_FREEING, "I_FREEING"}, \
54 {I_CLEAR, "I_CLEAR"}, \
55 {I_SYNC, "I_SYNC"}, \
56 {I_REFERENCED, "I_REFERENCED"} \
57 )
9a8687aa 58#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
b87700e3 59
9a8687aa
MD		 60#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
61
62LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
63 TP_PROTO(struct page *page, struct address_space *mapping),
64 TP_ARGS(page, mapping),
65 TP_STRUCT__entry (
66 __array_text(char, name, 32)
67 __field(unsigned long, ino)
68 __field(pgoff_t, index)
69 ),
70 TP_fast_assign(
71 tp_memcpy(name,
72 mapping ? dev_name(inode_to_bdi(mapping->host)->dev) : "(unknown)", 32)
73 tp_assign(ino, mapping ? mapping->host->i_ino : 0)
74 tp_assign(index, page->index)
75 ),
76 TP_printk("bdi %s: ino=%lu index=%lu",
77 __entry->name,
78 __entry->ino,
79 __entry->index
80 )
81)
82
83LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
84 TP_PROTO(struct inode *inode, int flags),
85 TP_ARGS(inode, flags),
86 TP_STRUCT__entry (
87 __array_text(char, name, 32)
88 __field(unsigned long, ino)
89 __field(unsigned long, state)
90 __field(unsigned long, flags)
91 ),
92 TP_fast_assign(
93 /* may be called for files on pseudo FSes w/ unregistered bdi */
94 tp_memcpy(name,
95 inode_to_bdi(inode)->dev ?
96 dev_name(inode_to_bdi(inode)->dev) : "(unknown)", 32)
97 tp_assign(ino, inode->i_ino)
98 tp_assign(state, inode->i_state)
99 tp_assign(flags, flags)
100 ),
101 TP_printk("bdi %s: ino=%lu flags=%s",
102 __entry->name,
103 __entry->ino,
104 show_inode_state(__entry->flags)
105 )
106)
107#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
108LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
109 TP_PROTO(struct inode *inode, int flags), \
110 TP_ARGS(inode, flags))
111LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
112LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
113LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty)
114
115LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
116 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
117 TP_ARGS(inode, wbc),
118 TP_STRUCT__entry (
119 __array_text(char, name, 32)
120 __field(unsigned long, ino)
121 __field(int, sync_mode)
122 ),
123 TP_fast_assign(
124 tp_memcpy(name,
125 dev_name(inode_to_bdi(inode)->dev), 32)
126 tp_assign(ino, inode->i_ino)
127 tp_assign(sync_mode, wbc->sync_mode)
128 ),
129 TP_printk("bdi %s: ino=%lu sync_mode=%d",
130 __entry->name,
131 __entry->ino,
132 __entry->sync_mode
133 )
134)
135
136#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
137LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
138 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
139 TP_ARGS(inode, wbc))
140LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
141LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
142
143#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
144
aa634cd1
JD		 145LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
146 TP_PROTO(struct page *page, struct address_space *mapping),
147 TP_ARGS(page, mapping),
148 TP_STRUCT__entry (
149 __array_text(char, name, 32)
150 __field(unsigned long, ino)
151 __field(pgoff_t, index)
152 ),
153 TP_fast_assign(
154 tp_memcpy(name,
155 mapping ? dev_name(mapping->backing_dev_info->dev) : "(unknown)", 32)
156 tp_assign(ino, mapping ? mapping->host->i_ino : 0)
157 tp_assign(index, page->index)
158 ),
159 TP_printk("bdi %s: ino=%lu index=%lu",
160 __entry->name,
161 __entry->ino,
162 __entry->index
163 )
164)
165
166LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
167 TP_PROTO(struct inode *inode, int flags),
168 TP_ARGS(inode, flags),
169 TP_STRUCT__entry (
170 __array_text(char, name, 32)
171 __field(unsigned long, ino)
172 __field(unsigned long, flags)
173 ),
174 TP_fast_assign(
175 /* may be called for files on pseudo FSes w/ unregistered bdi */
176 tp_memcpy(name,
177 inode->i_mapping->backing_dev_info->dev ?
178 dev_name(inode->i_mapping->backing_dev_info->dev) : "(unknown)", 32)
179 tp_assign(ino, inode->i_ino)
180 tp_assign(flags, flags)
181 ),
182 TP_printk("bdi %s: ino=%lu flags=%s",
183 __entry->name,
184 __entry->ino,
185 show_inode_state(__entry->flags)
186 )
187)
188#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
189LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
190 TP_PROTO(struct inode *inode, int flags), \
191 TP_ARGS(inode, flags))
192LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
193LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
194
195LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
196 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
197 TP_ARGS(inode, wbc),
198 TP_STRUCT__entry (
199 __array_text(char, name, 32)
200 __field(unsigned long, ino)
201 __field(int, sync_mode)
202 ),
203 TP_fast_assign(
204 tp_memcpy(name,
205 dev_name(inode->i_mapping->backing_dev_info->dev), 32)
206 tp_assign(ino, inode->i_ino)
207 tp_assign(sync_mode, wbc->sync_mode)
208 ),
209 TP_printk("bdi %s: ino=%lu sync_mode=%d",
210 __entry->name,
211 __entry->ino,
212 __entry->sync_mode
213 )
214)
215
216#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
217LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
218 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
219 TP_ARGS(inode, wbc))
220LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
221LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
9a8687aa 222
aa634cd1
JD		 223#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */
224
9a8687aa
MD		 225#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
226
227LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
228 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
229 TP_ARGS(bdi, work),
230 TP_STRUCT__entry(
231 __array_text(char, name, 32)
232 ),
233 TP_fast_assign(
234 tp_memcpy(name, bdi->dev ? dev_name(bdi->dev) :
235 "(unknown)", 32)
236 ),
237 TP_printk("bdi %s",
238 __entry->name
239 )
240)
241
242#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
243
3bc29f0a 244LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
b87700e3
AG		 245 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
246 TP_ARGS(bdi, work),
247 TP_STRUCT__entry(
b4cf87e5 248 __array_text(char, name, 32)
b87700e3
AG		 249 ),
250 TP_fast_assign(
251 tp_memcpy(name, dev_name(bdi->dev ? bdi->dev :
252 default_backing_dev_info.dev), 32)
b87700e3 253 ),
88dc2c97
MD		 254 TP_printk("bdi %s",
255 __entry->name
b87700e3 256 )
b87700e3 257)
9a8687aa
MD		 258
259#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
260
3bc29f0a
MD		 261#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
262LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
b87700e3
AG		 263 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
264 TP_ARGS(bdi, work))
3bc29f0a
MD		 265LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread)
266LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue)
267LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec)
b87700e3 268#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
3bc29f0a
MD		 269LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start)
270LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written)
271LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait)
b87700e3
AG		 272#endif
273
3bc29f0a 274LTTNG_TRACEPOINT_EVENT(writeback_pages_written,
b87700e3
AG		 275 TP_PROTO(long pages_written),
276 TP_ARGS(pages_written),
277 TP_STRUCT__entry(
278 __field(long, pages)
279 ),
280 TP_fast_assign(
281 tp_assign(pages, pages_written)
282 ),
283 TP_printk("%ld", __entry->pages)
284)
285
3bc29f0a 286LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
b87700e3
AG		 287 TP_PROTO(struct backing_dev_info *bdi),
288 TP_ARGS(bdi),
289 TP_STRUCT__entry(
b4cf87e5 290 __array_text(char, name, 32)
b87700e3
AG		 291 ),
292 TP_fast_assign(
293 tp_memcpy(name, dev_name(bdi->dev), 32)
294 ),
295 TP_printk("bdi %s",
296 __entry->name
297 )
298)
59fecd6c 299#undef DEFINE_WRITEBACK_EVENT
b87700e3 300#define DEFINE_WRITEBACK_EVENT(name) \
3bc29f0a 301LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
b87700e3
AG		 302 TP_PROTO(struct backing_dev_info *bdi), \
303 TP_ARGS(bdi))
304
9cf29d3e 305#define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
3bc29f0a 306LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
9cf29d3e
MD		 307 TP_PROTO(struct backing_dev_info *bdi), \
308 TP_ARGS(bdi))
309
b87700e3
AG		 310DEFINE_WRITEBACK_EVENT(writeback_nowork)
311#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
312DEFINE_WRITEBACK_EVENT(writeback_wake_background)
313#endif
314DEFINE_WRITEBACK_EVENT(writeback_wake_thread)
315DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread)
316DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
317DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister)
318DEFINE_WRITEBACK_EVENT(writeback_thread_start)
319DEFINE_WRITEBACK_EVENT(writeback_thread_stop)
320#if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
9cf29d3e
MD		 321DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start)
322DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait)
323
3bc29f0a 324LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written,
b87700e3 325
9cf29d3e 326 writeback_balance_dirty_written,
b87700e3
AG		 327
328 TP_PROTO(struct backing_dev_info *bdi, int written),
329
330 TP_ARGS(bdi, written),
331
332 TP_STRUCT__entry(
333 __array(char, name, 32)
334 __field(int, written)
335 ),
336
337 TP_fast_assign(
338 tp_memcpy(name, dev_name(bdi->dev), 32)
339 tp_assign(written, written)
340 ),
341
342 TP_printk("bdi %s written %d",
343 __entry->name,
344 __entry->written
345 )
346)
347#endif
348
3bc29f0a 349LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class,
b87700e3
AG		 350 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
351 TP_ARGS(wbc, bdi),
352 TP_STRUCT__entry(
b4cf87e5 353 __array_text(char, name, 32)
b87700e3
AG		 354 __field(long, nr_to_write)
355 __field(long, pages_skipped)
356 __field(int, sync_mode)
357 __field(int, for_kupdate)
358 __field(int, for_background)
359 __field(int, for_reclaim)
360 __field(int, range_cyclic)
361#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
362 __field(int, more_io)
363 __field(unsigned long, older_than_this)
364#endif
365 __field(long, range_start)
366 __field(long, range_end)
367 ),
368
369 TP_fast_assign(
370 tp_memcpy(name, dev_name(bdi->dev), 32)
371 tp_assign(nr_to_write, wbc->nr_to_write)
372 tp_assign(pages_skipped, wbc->pages_skipped)
373 tp_assign(sync_mode, wbc->sync_mode)
374 tp_assign(for_kupdate, wbc->for_kupdate)
375 tp_assign(for_background, wbc->for_background)
376 tp_assign(for_reclaim, wbc->for_reclaim)
377 tp_assign(range_cyclic, wbc->range_cyclic)
378#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
379 tp_assign(more_io, wbc->more_io)
380 tp_assign(older_than_this, wbc->older_than_this ?
381 *wbc->older_than_this : 0)
382#endif
383 tp_assign(range_start, (long)wbc->range_start)
384 tp_assign(range_end, (long)wbc->range_end)
385 ),
386
387 TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
388#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
389 "bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx "
390#else
391 "bgrd=%d reclm=%d cyclic=%d "
392#endif
393 "start=0x%lx end=0x%lx",
394 __entry->name,
395 __entry->nr_to_write,
396 __entry->pages_skipped,
397 __entry->sync_mode,
398 __entry->for_kupdate,
399 __entry->for_background,
400 __entry->for_reclaim,
401 __entry->range_cyclic,
402#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
403 __entry->more_io,
404 __entry->older_than_this,
405#endif
406 __entry->range_start,
407 __entry->range_end)
408)
409
9cf29d3e 410#undef DEFINE_WBC_EVENT
3bc29f0a
MD		 411#define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
412LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
b87700e3
AG		 413 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
414 TP_ARGS(wbc, bdi))
415#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
3bc29f0a
MD		 416LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start, writeback_wbc_writeback_start)
417LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written, writeback_wbc_writeback_written)
418LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait, writeback_wbc_writeback_wait)
419LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start)
420LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written)
421LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait)
b87700e3 422#endif
3bc29f0a 423LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage)
b87700e3
AG		 424
425#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
3bc29f0a 426LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
b87700e3
AG		 427 TP_PROTO(struct bdi_writeback *wb,
428#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
429 struct wb_writeback_work *work,
430#else
431 unsigned long *older_than_this,
432#endif
433 int moved),
434#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
435 TP_ARGS(wb, work, moved),
436#else
437 TP_ARGS(wb, older_than_this, moved),
438#endif
439 TP_STRUCT__entry(
440 __array(char, name, 32)
88dc2c97
MD		 441#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
442#else
b87700e3
AG		 443 __field(unsigned long, older)
444 __field(long, age)
b87700e3 445#endif
88dc2c97 446 __field(int, moved)
b87700e3
AG		 447 ),
448 TP_fast_assign(
449 tp_memcpy(name, dev_name(wb->bdi->dev), 32)
450#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
b87700e3
AG		 451#else
452 tp_assign(older, older_than_this ? *older_than_this : 0)
453 tp_assign(age, older_than_this ?
454 (jiffies - *older_than_this) * 1000 / HZ : -1)
455#endif
456 tp_assign(moved, moved)
b87700e3
AG		 457 ),
458#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
88dc2c97 459 TP_printk("bdi %s: enqueue=%d",
b87700e3 460 __entry->name,
b87700e3 461 __entry->moved,
b87700e3
AG		 462 )
463#else
464 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d",
465 __entry->name,
466 __entry->older, /* older_than_this in jiffies */
467 __entry->age, /* older_than_this in relative milliseconds */
468 __entry->moved
469 )
470#endif
471)
472
3bc29f0a 473LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
9cf29d3e
MD		 474
475 writeback_global_dirty_state,
b87700e3
AG		 476
477 TP_PROTO(unsigned long background_thresh,
478 unsigned long dirty_thresh
479 ),
480
481 TP_ARGS(background_thresh,
482 dirty_thresh
483 ),
484
485 TP_STRUCT__entry(
486 __field(unsigned long, nr_dirty)
487 __field(unsigned long, nr_writeback)
488 __field(unsigned long, nr_unstable)
489 __field(unsigned long, background_thresh)
490 __field(unsigned long, dirty_thresh)
491 __field(unsigned long, dirty_limit)
492 __field(unsigned long, nr_dirtied)
493 __field(unsigned long, nr_written)
494 ),
495
496 TP_fast_assign(
497 tp_assign(nr_dirty, global_page_state(NR_FILE_DIRTY))
498 tp_assign(nr_writeback, global_page_state(NR_WRITEBACK))
499 tp_assign(nr_unstable, global_page_state(NR_UNSTABLE_NFS))
500 tp_assign(nr_dirtied, global_page_state(NR_DIRTIED))
501 tp_assign(nr_written, global_page_state(NR_WRITTEN))
502 tp_assign(background_thresh, background_thresh)
503 tp_assign(dirty_thresh, dirty_thresh)
504 tp_assign(dirty_limit, global_dirty_limit)
505 ),
506
507 TP_printk("dirty=%lu writeback=%lu unstable=%lu "
508 "bg_thresh=%lu thresh=%lu limit=%lu "
509 "dirtied=%lu written=%lu",
510 __entry->nr_dirty,
511 __entry->nr_writeback,
512 __entry->nr_unstable,
513 __entry->background_thresh,
514 __entry->dirty_thresh,
515 __entry->dirty_limit,
516 __entry->nr_dirtied,
517 __entry->nr_written
518 )
519)
520#endif
521
522#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
523
524#define KBps(x) ((x) << (PAGE_SHIFT - 10))
525
0e648dfb
MJ		 526#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
527
528LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
529
530 writeback_bdi_dirty_ratelimit,
531
532 TP_PROTO(struct backing_dev_info *bdi,
533 unsigned long dirty_rate,
534 unsigned long task_ratelimit),
535
536 TP_ARGS(bdi, dirty_rate, task_ratelimit),
537
538 TP_STRUCT__entry(
539 __array(char, bdi, 32)
540 __field(unsigned long, write_bw)
541 __field(unsigned long, avg_write_bw)
542 __field(unsigned long, dirty_rate)
543 __field(unsigned long, dirty_ratelimit)
544 __field(unsigned long, task_ratelimit)
545 __field(unsigned long, balanced_dirty_ratelimit)
546 ),
547
548 TP_fast_assign(
549 tp_memcpy(bdi, dev_name(bdi->dev), 32)
550 tp_assign(write_bw, KBps(bdi->wb.write_bandwidth))
551 tp_assign(avg_write_bw, KBps(bdi->wb.avg_write_bandwidth))
552 tp_assign(dirty_rate, KBps(dirty_rate))
553 tp_assign(dirty_ratelimit, KBps(bdi->wb.dirty_ratelimit))
554 tp_assign(task_ratelimit, KBps(task_ratelimit))
555 tp_assign(balanced_dirty_ratelimit,
556 KBps(bdi->wb.balanced_dirty_ratelimit))
557 ),
558
559 TP_printk("bdi %s: "
560 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
561 "dirty_ratelimit=%lu task_ratelimit=%lu "
562 "balanced_dirty_ratelimit=%lu",
563 __entry->bdi,
564 __entry->write_bw, /* write bandwidth */
565 __entry->avg_write_bw, /* avg write bandwidth */
566 __entry->dirty_rate, /* bdi dirty rate */
567 __entry->dirty_ratelimit, /* base ratelimit */
568 __entry->task_ratelimit, /* ratelimit with position control */
569 __entry->balanced_dirty_ratelimit /* the balanced ratelimit */
570 )
571)
572
573#else
574
3bc29f0a 575LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
9cf29d3e
MD		 576
577 writeback_bdi_dirty_ratelimit,
b87700e3
AG		 578
579 TP_PROTO(struct backing_dev_info *bdi,
580 unsigned long dirty_rate,
581 unsigned long task_ratelimit),
582
583 TP_ARGS(bdi, dirty_rate, task_ratelimit),
584
585 TP_STRUCT__entry(
586 __array(char, bdi, 32)
587 __field(unsigned long, write_bw)
588 __field(unsigned long, avg_write_bw)
589 __field(unsigned long, dirty_rate)
590 __field(unsigned long, dirty_ratelimit)
591 __field(unsigned long, task_ratelimit)
592 __field(unsigned long, balanced_dirty_ratelimit)
593 ),
594
595 TP_fast_assign(
596 tp_memcpy(bdi, dev_name(bdi->dev), 32)
597 tp_assign(write_bw, KBps(bdi->write_bandwidth))
598 tp_assign(avg_write_bw, KBps(bdi->avg_write_bandwidth))
599 tp_assign(dirty_rate, KBps(dirty_rate))
600 tp_assign(dirty_ratelimit, KBps(bdi->dirty_ratelimit))
601 tp_assign(task_ratelimit, KBps(task_ratelimit))
602 tp_assign(balanced_dirty_ratelimit,
603 KBps(bdi->balanced_dirty_ratelimit))
604 ),
605
606 TP_printk("bdi %s: "
607 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
608 "dirty_ratelimit=%lu task_ratelimit=%lu "
609 "balanced_dirty_ratelimit=%lu",
610 __entry->bdi,
611 __entry->write_bw, /* write bandwidth */
612 __entry->avg_write_bw, /* avg write bandwidth */
613 __entry->dirty_rate, /* bdi dirty rate */
614 __entry->dirty_ratelimit, /* base ratelimit */
615 __entry->task_ratelimit, /* ratelimit with position control */
616 __entry->balanced_dirty_ratelimit /* the balanced ratelimit */
617 )
618)
619
0e648dfb
MJ		 620#endif
621
3bc29f0a 622LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
9cf29d3e
MD		 623
624 writeback_balance_dirty_pages,
b87700e3
AG		 625
626 TP_PROTO(struct backing_dev_info *bdi,
627 unsigned long thresh,
628 unsigned long bg_thresh,
629 unsigned long dirty,
630 unsigned long bdi_thresh,
631 unsigned long bdi_dirty,
632 unsigned long dirty_ratelimit,
633 unsigned long task_ratelimit,
634 unsigned long dirtied,
635#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
636 unsigned long period,
637#endif
638 long pause,
639 unsigned long start_time),
640
641 TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
642 dirty_ratelimit, task_ratelimit,
643#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
644 dirtied, period, pause, start_time),
645#else
646 dirtied, pause, start_time),
647#endif
648 TP_STRUCT__entry(
649 __array( char, bdi, 32)
650 __field(unsigned long, limit)
651 __field(unsigned long, setpoint)
652 __field(unsigned long, dirty)
653 __field(unsigned long, bdi_setpoint)
654 __field(unsigned long, bdi_dirty)
655 __field(unsigned long, dirty_ratelimit)
656 __field(unsigned long, task_ratelimit)
657 __field(unsigned int, dirtied)
658 __field(unsigned int, dirtied_pause)
659 __field(unsigned long, paused)
660 __field( long, pause)
661#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
662 __field(unsigned long, period)
663 __field( long, think)
664#endif
665 ),
666
667 TP_fast_assign(
668 tp_memcpy(bdi, dev_name(bdi->dev), 32)
669 tp_assign(limit, global_dirty_limit)
670 tp_assign(setpoint,
671 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
672 tp_assign(dirty, dirty)
673 tp_assign(bdi_setpoint,
674 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
675 bdi_thresh / (thresh + 1))
676 tp_assign(bdi_dirty, bdi_dirty)
677 tp_assign(dirty_ratelimit, KBps(dirty_ratelimit))
678 tp_assign(task_ratelimit, KBps(task_ratelimit))
679 tp_assign(dirtied, dirtied)
680 tp_assign(dirtied_pause, current->nr_dirtied_pause)
681#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
682 tp_assign(think, current->dirty_paused_when == 0 ? 0 :
683 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
684 tp_assign(period, period * 1000 / HZ)
685#endif
686 tp_assign(pause, pause * 1000 / HZ)
687 tp_assign(paused, (jiffies - start_time) * 1000 / HZ)
688 ),
689
690
691#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
692 TP_printk("bdi %s: "
693 "limit=%lu setpoint=%lu dirty=%lu "
694 "bdi_setpoint=%lu bdi_dirty=%lu "
695 "dirty_ratelimit=%lu task_ratelimit=%lu "
696 "dirtied=%u dirtied_pause=%u "
697 "paused=%lu pause=%ld period=%lu think=%ld",
698 __entry->bdi,
699 __entry->limit,
700 __entry->setpoint,
701 __entry->dirty,
702 __entry->bdi_setpoint,
703 __entry->bdi_dirty,
704 __entry->dirty_ratelimit,
705 __entry->task_ratelimit,
706 __entry->dirtied,
707 __entry->dirtied_pause,
708 __entry->paused, /* ms */
709 __entry->pause, /* ms */
710 __entry->period, /* ms */
711 __entry->think /* ms */
712 )
713#else
714 TP_printk("bdi %s: "
715 "limit=%lu setpoint=%lu dirty=%lu "
716 "bdi_setpoint=%lu bdi_dirty=%lu "
717 "dirty_ratelimit=%lu task_ratelimit=%lu "
718 "dirtied=%u dirtied_pause=%u "
719 "paused=%lu pause=%ld",
720 __entry->bdi,
721 __entry->limit,
722 __entry->setpoint,
723 __entry->dirty,
724 __entry->bdi_setpoint,
725 __entry->bdi_dirty,
726 __entry->dirty_ratelimit,
727 __entry->task_ratelimit,
728 __entry->dirtied,
729 __entry->dirtied_pause,
730 __entry->paused, /* ms */
731 __entry->pause /* ms */
732 )
733#endif
734)
735#endif
736
737#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
3bc29f0a 738LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue,
b87700e3
AG		 739
740 TP_PROTO(struct inode *inode),
741 TP_ARGS(inode),
742
743 TP_STRUCT__entry(
b4cf87e5 744 __array_text(char, name, 32)
b87700e3
AG		 745 __field(unsigned long, ino)
746 __field(unsigned long, state)
747 __field(unsigned long, dirtied_when)
748 ),
749
750 TP_fast_assign(
751 tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32)
752 tp_assign(ino, inode->i_ino)
753 tp_assign(state, inode->i_state)
754 tp_assign(dirtied_when, inode->dirtied_when)
755 ),
756
757 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu",
758 __entry->name,
759 __entry->ino,
760 show_inode_state(__entry->state),
761 __entry->dirtied_when,
762 (jiffies - __entry->dirtied_when) / HZ
763 )
764)
765#endif
766
767#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
3bc29f0a 768LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template,
b87700e3
AG		 769
770 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
771
772 TP_ARGS(usec_timeout, usec_delayed),
773
774 TP_STRUCT__entry(
775 __field( unsigned int, usec_timeout )
776 __field( unsigned int, usec_delayed )
777 ),
778
779 TP_fast_assign(
780 tp_assign(usec_timeout, usec_timeout)
781 tp_assign(usec_delayed, usec_delayed)
782 ),
783
784 TP_printk("usec_timeout=%u usec_delayed=%u",
785 __entry->usec_timeout,
786 __entry->usec_delayed)
787)
788
3bc29f0a 789LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_congestion_wait,
b87700e3
AG		 790
791 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
792
793 TP_ARGS(usec_timeout, usec_delayed)
794)
795
3bc29f0a 796LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_wait_iff_congested,
b87700e3
AG		 797
798 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
799
800 TP_ARGS(usec_timeout, usec_delayed)
801)
802#endif
803
804#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
3bc29f0a 805LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template,
b87700e3
AG		 806
807 TP_PROTO(struct inode *inode,
808 struct writeback_control *wbc,
809 unsigned long nr_to_write
810 ),
811
812 TP_ARGS(inode, wbc, nr_to_write),
813
814 TP_STRUCT__entry(
b4cf87e5 815 __array_text(char, name, 32)
b87700e3
AG		 816 __field(unsigned long, ino)
817 __field(unsigned long, state)
818 __field(unsigned long, dirtied_when)
819 __field(unsigned long, writeback_index)
820 __field(long, nr_to_write)
821 __field(unsigned long, wrote)
822 ),
823
824 TP_fast_assign(
825 tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32)
826 tp_assign(ino, inode->i_ino)
827 tp_assign(state, inode->i_state)
828 tp_assign(dirtied_when, inode->dirtied_when)
829 tp_assign(writeback_index, inode->i_mapping->writeback_index)
830 tp_assign(nr_to_write, nr_to_write)
831 tp_assign(wrote, nr_to_write - wbc->nr_to_write)
832 ),
833
834 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
835 "index=%lu to_write=%ld wrote=%lu",
836 __entry->name,
837 __entry->ino,
838 show_inode_state(__entry->state),
839 __entry->dirtied_when,
840 (jiffies - __entry->dirtied_when) / HZ,
841 __entry->writeback_index,
842 __entry->nr_to_write,
843 __entry->wrote
844 )
845)
846
847#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
3bc29f0a 848LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode_requeue,
b87700e3
AG		 849 TP_PROTO(struct inode *inode,
850 struct writeback_control *wbc,
851 unsigned long nr_to_write),
852 TP_ARGS(inode, wbc, nr_to_write)
853)
854#endif
855
3bc29f0a 856LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode,
b87700e3
AG		 857 TP_PROTO(struct inode *inode,
858 struct writeback_control *wbc,
859 unsigned long nr_to_write),
860 TP_ARGS(inode, wbc, nr_to_write)
861)
862#endif
863
3bc29f0a 864#endif /* LTTNG_TRACE_WRITEBACK_H */
b87700e3
AG		 865
866/* This part must be outside protection */
867#include "../../../probes/define_trace.h"
LTTng 2.0/0.x modules
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