2 #define TRACE_SYSTEM writeback
4 #if !defined(LTTNG_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
5 #define LTTNG_TRACE_WRITEBACK_H
7 #include "../../../probes/lttng-tracepoint-event.h"
8 #include <linux/tracepoint.h>
9 #include <linux/backing-dev.h>
10 #include <linux/writeback.h>
11 #include <linux/version.h>
13 #ifndef _TRACE_WRITEBACK_DEF_
14 #define _TRACE_WRITEBACK_DEF_
15 static inline struct backing_dev_info
*inode_to_bdi(struct inode
*inode
)
17 struct super_block
*sb
= inode
->i_sb
;
19 if (strcmp(sb
->s_type
->name
, "bdev") == 0)
20 return inode
->i_mapping
->backing_dev_info
;
26 #define show_inode_state(state) \
27 __print_flags(state, "|", \
28 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
29 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
30 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
32 {I_WILL_FREE, "I_WILL_FREE"}, \
33 {I_FREEING, "I_FREEING"}, \
34 {I_CLEAR, "I_CLEAR"}, \
36 {I_REFERENCED, "I_REFERENCED"} \
39 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
40 #define WB_WORK_REASON \
41 {WB_REASON_BACKGROUND, "background"}, \
42 {WB_REASON_TRY_TO_FREE_PAGES, "try_to_free_pages"}, \
43 {WB_REASON_SYNC, "sync"}, \
44 {WB_REASON_PERIODIC, "periodic"}, \
45 {WB_REASON_LAPTOP_TIMER, "laptop_timer"}, \
46 {WB_REASON_FREE_MORE_MEM, "free_more_memory"}, \
47 {WB_REASON_FS_FREE_SPACE, "fs_free_space"}, \
48 {WB_REASON_FORKER_THREAD, "forker_thread"}
51 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
52 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page
,
53 TP_PROTO(struct page
*page
, struct address_space
*mapping
),
54 TP_ARGS(page
, mapping
),
56 __array_text(char, name
, 32)
57 __field(unsigned long, ino
)
58 __field(pgoff_t
, index
)
62 mapping
? dev_name(mapping
->backing_dev_info
->dev
) : "(unknown)", 32)
63 tp_assign(ino
, mapping
? mapping
->host
->i_ino
: 0)
64 tp_assign(index
, page
->index
)
66 TP_printk("bdi %s: ino=%lu index=%lu",
73 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template
,
74 TP_PROTO(struct inode
*inode
, int flags
),
75 TP_ARGS(inode
, flags
),
77 __array_text(char, name
, 32)
78 __field(unsigned long, ino
)
79 __field(unsigned long, flags
)
82 /* may be called for files on pseudo FSes w/ unregistered bdi */
84 inode
->i_mapping
->backing_dev_info
->dev
?
85 dev_name(inode
->i_mapping
->backing_dev_info
->dev
) : "(unknown)", 32)
86 tp_assign(ino
, inode
->i_ino
)
87 tp_assign(flags
, flags
)
89 TP_printk("bdi %s: ino=%lu flags=%s",
92 show_inode_state(__entry
->flags
)
95 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
96 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
97 TP_PROTO(struct inode *inode, int flags), \
98 TP_ARGS(inode, flags))
99 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start
)
100 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode
)
102 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template
,
103 TP_PROTO(struct inode
*inode
, struct writeback_control
*wbc
),
106 __array_text(char, name
, 32)
107 __field(unsigned long, ino
)
108 __field(int, sync_mode
)
112 dev_name(inode
->i_mapping
->backing_dev_info
->dev
), 32)
113 tp_assign(ino
, inode
->i_ino
)
114 tp_assign(sync_mode
, wbc
->sync_mode
)
116 TP_printk("bdi %s: ino=%lu sync_mode=%d",
123 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
124 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
125 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
127 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start
)
128 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode
)
129 #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */
131 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
132 TP_PROTO(struct backing_dev_info
*bdi
, struct wb_writeback_work
*work
),
135 __array_text(char, name
, 32)
138 tp_memcpy(name
, dev_name(bdi
->dev
? bdi
->dev
:
139 default_backing_dev_info
.dev
), 32)
145 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
146 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
147 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
149 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread
)
150 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue
)
151 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec
)
152 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
153 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start
)
154 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written
)
155 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait
)
158 LTTNG_TRACEPOINT_EVENT(writeback_pages_written
,
159 TP_PROTO(long pages_written
),
160 TP_ARGS(pages_written
),
165 tp_assign(pages
, pages_written
)
167 TP_printk("%ld", __entry
->pages
)
170 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
171 TP_PROTO(struct backing_dev_info
*bdi
),
174 __array_text(char, name
, 32)
177 tp_memcpy(name
, dev_name(bdi
->dev
), 32)
183 #undef DEFINE_WRITEBACK_EVENT
184 #define DEFINE_WRITEBACK_EVENT(name) \
185 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
186 TP_PROTO(struct backing_dev_info *bdi), \
189 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
190 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
191 TP_PROTO(struct backing_dev_info *bdi), \
194 DEFINE_WRITEBACK_EVENT(writeback_nowork
)
195 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
196 DEFINE_WRITEBACK_EVENT(writeback_wake_background
)
198 DEFINE_WRITEBACK_EVENT(writeback_wake_thread
)
199 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread
)
200 DEFINE_WRITEBACK_EVENT(writeback_bdi_register
)
201 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister
)
202 DEFINE_WRITEBACK_EVENT(writeback_thread_start
)
203 DEFINE_WRITEBACK_EVENT(writeback_thread_stop
)
204 #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
205 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start
, writeback_balance_dirty_start
)
206 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait
, writeback_balance_dirty_wait
)
208 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written
,
210 writeback_balance_dirty_written
,
212 TP_PROTO(struct backing_dev_info
*bdi
, int written
),
214 TP_ARGS(bdi
, written
),
217 __array(char, name
, 32)
218 __field(int, written
)
222 tp_memcpy(name
, dev_name(bdi
->dev
), 32)
223 tp_assign(written
, written
)
226 TP_printk("bdi %s written %d",
233 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class
,
234 TP_PROTO(struct writeback_control
*wbc
, struct backing_dev_info
*bdi
),
237 __array_text(char, name
, 32)
238 __field(long, nr_to_write
)
239 __field(long, pages_skipped
)
240 __field(int, sync_mode
)
241 __field(int, for_kupdate
)
242 __field(int, for_background
)
243 __field(int, for_reclaim
)
244 __field(int, range_cyclic
)
245 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
246 __field(int, more_io
)
247 __field(unsigned long, older_than_this
)
249 __field(long, range_start
)
250 __field(long, range_end
)
254 tp_memcpy(name
, dev_name(bdi
->dev
), 32)
255 tp_assign(nr_to_write
, wbc
->nr_to_write
)
256 tp_assign(pages_skipped
, wbc
->pages_skipped
)
257 tp_assign(sync_mode
, wbc
->sync_mode
)
258 tp_assign(for_kupdate
, wbc
->for_kupdate
)
259 tp_assign(for_background
, wbc
->for_background
)
260 tp_assign(for_reclaim
, wbc
->for_reclaim
)
261 tp_assign(range_cyclic
, wbc
->range_cyclic
)
262 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
263 tp_assign(more_io
, wbc
->more_io
)
264 tp_assign(older_than_this
, wbc
->older_than_this
?
265 *wbc
->older_than_this
: 0)
267 tp_assign(range_start
, (long)wbc
->range_start
)
268 tp_assign(range_end
, (long)wbc
->range_end
)
271 TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
272 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
273 "bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx "
275 "bgrd=%d reclm=%d cyclic=%d "
277 "start=0x%lx end=0x%lx",
279 __entry
->nr_to_write
,
280 __entry
->pages_skipped
,
282 __entry
->for_kupdate
,
283 __entry
->for_background
,
284 __entry
->for_reclaim
,
285 __entry
->range_cyclic
,
286 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
288 __entry
->older_than_this
,
290 __entry
->range_start
,
294 #undef DEFINE_WBC_EVENT
295 #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
296 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
297 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
299 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
300 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start
, writeback_wbc_writeback_start
)
301 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written
, writeback_wbc_writeback_written
)
302 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait
, writeback_wbc_writeback_wait
)
303 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start
, writeback_wbc_balance_dirty_start
)
304 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written
, writeback_wbc_balance_dirty_written
)
305 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait
, writeback_wbc_balance_dirty_wait
)
307 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage
, writeback_wbc_writepage
)
309 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
310 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
311 TP_PROTO(struct bdi_writeback
*wb
,
312 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
313 struct wb_writeback_work
*work
,
315 unsigned long *older_than_this
,
318 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
319 TP_ARGS(wb
, work
, moved
),
321 TP_ARGS(wb
, older_than_this
, moved
),
324 __array(char, name
, 32)
325 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
327 __field(unsigned long, older
)
333 tp_memcpy(name
, dev_name(wb
->bdi
->dev
), 32)
334 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
336 tp_assign(older
, older_than_this
? *older_than_this
: 0)
337 tp_assign(age
, older_than_this
?
338 (jiffies
- *older_than_this
) * 1000 / HZ
: -1)
340 tp_assign(moved
, moved
)
342 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
343 TP_printk("bdi %s: enqueue=%d",
348 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d",
350 __entry
->older
, /* older_than_this in jiffies */
351 __entry
->age
, /* older_than_this in relative milliseconds */
357 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
359 writeback_global_dirty_state
,
361 TP_PROTO(unsigned long background_thresh
,
362 unsigned long dirty_thresh
365 TP_ARGS(background_thresh
,
370 __field(unsigned long, nr_dirty
)
371 __field(unsigned long, nr_writeback
)
372 __field(unsigned long, nr_unstable
)
373 __field(unsigned long, background_thresh
)
374 __field(unsigned long, dirty_thresh
)
375 __field(unsigned long, dirty_limit
)
376 __field(unsigned long, nr_dirtied
)
377 __field(unsigned long, nr_written
)
381 tp_assign(nr_dirty
, global_page_state(NR_FILE_DIRTY
))
382 tp_assign(nr_writeback
, global_page_state(NR_WRITEBACK
))
383 tp_assign(nr_unstable
, global_page_state(NR_UNSTABLE_NFS
))
384 tp_assign(nr_dirtied
, global_page_state(NR_DIRTIED
))
385 tp_assign(nr_written
, global_page_state(NR_WRITTEN
))
386 tp_assign(background_thresh
, background_thresh
)
387 tp_assign(dirty_thresh
, dirty_thresh
)
388 tp_assign(dirty_limit
, global_dirty_limit
)
391 TP_printk("dirty=%lu writeback=%lu unstable=%lu "
392 "bg_thresh=%lu thresh=%lu limit=%lu "
393 "dirtied=%lu written=%lu",
395 __entry
->nr_writeback
,
396 __entry
->nr_unstable
,
397 __entry
->background_thresh
,
398 __entry
->dirty_thresh
,
399 __entry
->dirty_limit
,
406 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
408 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
410 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
412 writeback_bdi_dirty_ratelimit
,
414 TP_PROTO(struct backing_dev_info
*bdi
,
415 unsigned long dirty_rate
,
416 unsigned long task_ratelimit
),
418 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
421 __array(char, bdi
, 32)
422 __field(unsigned long, write_bw
)
423 __field(unsigned long, avg_write_bw
)
424 __field(unsigned long, dirty_rate
)
425 __field(unsigned long, dirty_ratelimit
)
426 __field(unsigned long, task_ratelimit
)
427 __field(unsigned long, balanced_dirty_ratelimit
)
431 tp_memcpy(bdi
, dev_name(bdi
->dev
), 32)
432 tp_assign(write_bw
, KBps(bdi
->write_bandwidth
))
433 tp_assign(avg_write_bw
, KBps(bdi
->avg_write_bandwidth
))
434 tp_assign(dirty_rate
, KBps(dirty_rate
))
435 tp_assign(dirty_ratelimit
, KBps(bdi
->dirty_ratelimit
))
436 tp_assign(task_ratelimit
, KBps(task_ratelimit
))
437 tp_assign(balanced_dirty_ratelimit
,
438 KBps(bdi
->balanced_dirty_ratelimit
))
442 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
443 "dirty_ratelimit=%lu task_ratelimit=%lu "
444 "balanced_dirty_ratelimit=%lu",
446 __entry
->write_bw
, /* write bandwidth */
447 __entry
->avg_write_bw
, /* avg write bandwidth */
448 __entry
->dirty_rate
, /* bdi dirty rate */
449 __entry
->dirty_ratelimit
, /* base ratelimit */
450 __entry
->task_ratelimit
, /* ratelimit with position control */
451 __entry
->balanced_dirty_ratelimit
/* the balanced ratelimit */
455 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
457 writeback_balance_dirty_pages
,
459 TP_PROTO(struct backing_dev_info
*bdi
,
460 unsigned long thresh
,
461 unsigned long bg_thresh
,
463 unsigned long bdi_thresh
,
464 unsigned long bdi_dirty
,
465 unsigned long dirty_ratelimit
,
466 unsigned long task_ratelimit
,
467 unsigned long dirtied
,
468 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
469 unsigned long period
,
472 unsigned long start_time
),
474 TP_ARGS(bdi
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
475 dirty_ratelimit
, task_ratelimit
,
476 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
477 dirtied
, period
, pause
, start_time
),
479 dirtied
, pause
, start_time
),
482 __array( char, bdi
, 32)
483 __field(unsigned long, limit
)
484 __field(unsigned long, setpoint
)
485 __field(unsigned long, dirty
)
486 __field(unsigned long, bdi_setpoint
)
487 __field(unsigned long, bdi_dirty
)
488 __field(unsigned long, dirty_ratelimit
)
489 __field(unsigned long, task_ratelimit
)
490 __field(unsigned int, dirtied
)
491 __field(unsigned int, dirtied_pause
)
492 __field(unsigned long, paused
)
493 __field( long, pause
)
494 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
495 __field(unsigned long, period
)
496 __field( long, think
)
501 tp_memcpy(bdi
, dev_name(bdi
->dev
), 32)
502 tp_assign(limit
, global_dirty_limit
)
504 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
505 tp_assign(dirty
, dirty
)
506 tp_assign(bdi_setpoint
,
507 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
508 bdi_thresh
/ (thresh
+ 1))
509 tp_assign(bdi_dirty
, bdi_dirty
)
510 tp_assign(dirty_ratelimit
, KBps(dirty_ratelimit
))
511 tp_assign(task_ratelimit
, KBps(task_ratelimit
))
512 tp_assign(dirtied
, dirtied
)
513 tp_assign(dirtied_pause
, current
->nr_dirtied_pause
)
514 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
515 tp_assign(think
, current
->dirty_paused_when
== 0 ? 0 :
516 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
517 tp_assign(period
, period
* 1000 / HZ
)
519 tp_assign(pause
, pause
* 1000 / HZ
)
520 tp_assign(paused
, (jiffies
- start_time
) * 1000 / HZ
)
524 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
526 "limit=%lu setpoint=%lu dirty=%lu "
527 "bdi_setpoint=%lu bdi_dirty=%lu "
528 "dirty_ratelimit=%lu task_ratelimit=%lu "
529 "dirtied=%u dirtied_pause=%u "
530 "paused=%lu pause=%ld period=%lu think=%ld",
535 __entry
->bdi_setpoint
,
537 __entry
->dirty_ratelimit
,
538 __entry
->task_ratelimit
,
540 __entry
->dirtied_pause
,
541 __entry
->paused
, /* ms */
542 __entry
->pause
, /* ms */
543 __entry
->period
, /* ms */
544 __entry
->think
/* ms */
548 "limit=%lu setpoint=%lu dirty=%lu "
549 "bdi_setpoint=%lu bdi_dirty=%lu "
550 "dirty_ratelimit=%lu task_ratelimit=%lu "
551 "dirtied=%u dirtied_pause=%u "
552 "paused=%lu pause=%ld",
557 __entry
->bdi_setpoint
,
559 __entry
->dirty_ratelimit
,
560 __entry
->task_ratelimit
,
562 __entry
->dirtied_pause
,
563 __entry
->paused
, /* ms */
564 __entry
->pause
/* ms */
570 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
571 LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue
,
573 TP_PROTO(struct inode
*inode
),
577 __array_text(char, name
, 32)
578 __field(unsigned long, ino
)
579 __field(unsigned long, state
)
580 __field(unsigned long, dirtied_when
)
584 tp_memcpy(name
, dev_name(inode_to_bdi(inode
)->dev
), 32)
585 tp_assign(ino
, inode
->i_ino
)
586 tp_assign(state
, inode
->i_state
)
587 tp_assign(dirtied_when
, inode
->dirtied_when
)
590 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu",
593 show_inode_state(__entry
->state
),
594 __entry
->dirtied_when
,
595 (jiffies
- __entry
->dirtied_when
) / HZ
600 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
601 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template
,
603 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
605 TP_ARGS(usec_timeout
, usec_delayed
),
608 __field( unsigned int, usec_timeout
)
609 __field( unsigned int, usec_delayed
)
613 tp_assign(usec_timeout
, usec_timeout
)
614 tp_assign(usec_delayed
, usec_delayed
)
617 TP_printk("usec_timeout=%u usec_delayed=%u",
618 __entry
->usec_timeout
,
619 __entry
->usec_delayed
)
622 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_congestion_wait
,
624 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
626 TP_ARGS(usec_timeout
, usec_delayed
)
629 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_wait_iff_congested
,
631 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
633 TP_ARGS(usec_timeout
, usec_delayed
)
637 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
638 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template
,
640 TP_PROTO(struct inode
*inode
,
641 struct writeback_control
*wbc
,
642 unsigned long nr_to_write
645 TP_ARGS(inode
, wbc
, nr_to_write
),
648 __array_text(char, name
, 32)
649 __field(unsigned long, ino
)
650 __field(unsigned long, state
)
651 __field(unsigned long, dirtied_when
)
652 __field(unsigned long, writeback_index
)
653 __field(long, nr_to_write
)
654 __field(unsigned long, wrote
)
658 tp_memcpy(name
, dev_name(inode_to_bdi(inode
)->dev
), 32)
659 tp_assign(ino
, inode
->i_ino
)
660 tp_assign(state
, inode
->i_state
)
661 tp_assign(dirtied_when
, inode
->dirtied_when
)
662 tp_assign(writeback_index
, inode
->i_mapping
->writeback_index
)
663 tp_assign(nr_to_write
, nr_to_write
)
664 tp_assign(wrote
, nr_to_write
- wbc
->nr_to_write
)
667 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
668 "index=%lu to_write=%ld wrote=%lu",
671 show_inode_state(__entry
->state
),
672 __entry
->dirtied_when
,
673 (jiffies
- __entry
->dirtied_when
) / HZ
,
674 __entry
->writeback_index
,
675 __entry
->nr_to_write
,
680 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
681 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode_requeue
,
682 TP_PROTO(struct inode
*inode
,
683 struct writeback_control
*wbc
,
684 unsigned long nr_to_write
),
685 TP_ARGS(inode
, wbc
, nr_to_write
)
689 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode
,
690 TP_PROTO(struct inode
*inode
,
691 struct writeback_control
*wbc
,
692 unsigned long nr_to_write
),
693 TP_ARGS(inode
, wbc
, nr_to_write
)
697 #endif /* LTTNG_TRACE_WRITEBACK_H */
699 /* This part must be outside protection */
700 #include "../../../probes/define_trace.h"