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_
16 #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0))
17 static inline struct backing_dev_info
*inode_to_bdi(struct inode
*inode
)
19 struct super_block
*sb
= inode
->i_sb
;
21 if (strcmp(sb
->s_type
->name
, "bdev") == 0)
22 return inode
->i_mapping
->backing_dev_info
;
26 #endif /* #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0)) */
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"}, \
37 {I_WILL_FREE, "I_WILL_FREE"}, \
38 {I_FREEING, "I_FREEING"}, \
39 {I_CLEAR, "I_CLEAR"}, \
41 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
42 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
43 {I_REFERENCED, "I_REFERENCED"} \
45 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
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"}, \
52 {I_WILL_FREE, "I_WILL_FREE"}, \
53 {I_FREEING, "I_FREEING"}, \
54 {I_CLEAR, "I_CLEAR"}, \
56 {I_REFERENCED, "I_REFERENCED"} \
58 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
60 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
62 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page
,
63 TP_PROTO(struct page
*page
, struct address_space
*mapping
),
64 TP_ARGS(page
, mapping
),
66 __array_text(char, name
, 32)
67 __field(unsigned long, ino
)
68 __field(pgoff_t
, index
)
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
)
76 TP_printk("bdi %s: ino=%lu index=%lu",
83 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template
,
84 TP_PROTO(struct inode
*inode
, int flags
),
85 TP_ARGS(inode
, flags
),
87 __array_text(char, name
, 32)
88 __field(unsigned long, ino
)
89 __field(unsigned long, state
)
90 __field(unsigned long, flags
)
93 /* may be called for files on pseudo FSes w/ unregistered bdi */
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
)
101 TP_printk("bdi %s: ino=%lu flags=%s",
104 show_inode_state(__entry
->flags
)
107 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
108 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
109 TP_PROTO(struct inode *inode, int flags), \
110 TP_ARGS(inode, flags))
111 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start
)
112 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode
)
113 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty
)
115 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template
,
116 TP_PROTO(struct inode
*inode
, struct writeback_control
*wbc
),
119 __array_text(char, name
, 32)
120 __field(unsigned long, ino
)
121 __field(int, sync_mode
)
125 dev_name(inode_to_bdi(inode
)->dev
), 32)
126 tp_assign(ino
, inode
->i_ino
)
127 tp_assign(sync_mode
, wbc
->sync_mode
)
129 TP_printk("bdi %s: ino=%lu sync_mode=%d",
136 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
137 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
138 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
140 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start
)
141 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode
)
143 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
145 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page
,
146 TP_PROTO(struct page
*page
, struct address_space
*mapping
),
147 TP_ARGS(page
, mapping
),
149 __array_text(char, name
, 32)
150 __field(unsigned long, ino
)
151 __field(pgoff_t
, index
)
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
)
159 TP_printk("bdi %s: ino=%lu index=%lu",
166 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template
,
167 TP_PROTO(struct inode
*inode
, int flags
),
168 TP_ARGS(inode
, flags
),
170 __array_text(char, name
, 32)
171 __field(unsigned long, ino
)
172 __field(unsigned long, flags
)
175 /* may be called for files on pseudo FSes w/ unregistered bdi */
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
)
182 TP_printk("bdi %s: ino=%lu flags=%s",
185 show_inode_state(__entry
->flags
)
188 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
189 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
190 TP_PROTO(struct inode *inode, int flags), \
191 TP_ARGS(inode, flags))
192 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start
)
193 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode
)
195 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template
,
196 TP_PROTO(struct inode
*inode
, struct writeback_control
*wbc
),
199 __array_text(char, name
, 32)
200 __field(unsigned long, ino
)
201 __field(int, sync_mode
)
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
)
209 TP_printk("bdi %s: ino=%lu sync_mode=%d",
216 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
217 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
218 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
220 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start
)
221 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode
)
223 #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */
225 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
227 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
228 TP_PROTO(struct backing_dev_info
*bdi
, struct wb_writeback_work
*work
),
231 __array_text(char, name
, 32)
234 tp_memcpy(name
, bdi
->dev
? dev_name(bdi
->dev
) :
242 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
244 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
245 TP_PROTO(struct backing_dev_info
*bdi
, struct wb_writeback_work
*work
),
248 __array_text(char, name
, 32)
251 tp_memcpy(name
, dev_name(bdi
->dev
? bdi
->dev
:
252 default_backing_dev_info
.dev
), 32)
259 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
261 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
262 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
263 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
265 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread
)
266 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue
)
267 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec
)
268 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
269 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start
)
270 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written
)
271 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait
)
274 LTTNG_TRACEPOINT_EVENT(writeback_pages_written
,
275 TP_PROTO(long pages_written
),
276 TP_ARGS(pages_written
),
281 tp_assign(pages
, pages_written
)
283 TP_printk("%ld", __entry
->pages
)
286 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
287 TP_PROTO(struct backing_dev_info
*bdi
),
290 __array_text(char, name
, 32)
293 tp_memcpy(name
, dev_name(bdi
->dev
), 32)
299 #undef DEFINE_WRITEBACK_EVENT
300 #define DEFINE_WRITEBACK_EVENT(name) \
301 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
302 TP_PROTO(struct backing_dev_info *bdi), \
305 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
306 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
307 TP_PROTO(struct backing_dev_info *bdi), \
310 DEFINE_WRITEBACK_EVENT(writeback_nowork
)
311 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
312 DEFINE_WRITEBACK_EVENT(writeback_wake_background
)
314 DEFINE_WRITEBACK_EVENT(writeback_wake_thread
)
315 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread
)
316 DEFINE_WRITEBACK_EVENT(writeback_bdi_register
)
317 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister
)
318 DEFINE_WRITEBACK_EVENT(writeback_thread_start
)
319 DEFINE_WRITEBACK_EVENT(writeback_thread_stop
)
320 #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
321 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start
, writeback_balance_dirty_start
)
322 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait
, writeback_balance_dirty_wait
)
324 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written
,
326 writeback_balance_dirty_written
,
328 TP_PROTO(struct backing_dev_info
*bdi
, int written
),
330 TP_ARGS(bdi
, written
),
333 __array(char, name
, 32)
334 __field(int, written
)
338 tp_memcpy(name
, dev_name(bdi
->dev
), 32)
339 tp_assign(written
, written
)
342 TP_printk("bdi %s written %d",
349 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class
,
350 TP_PROTO(struct writeback_control
*wbc
, struct backing_dev_info
*bdi
),
353 __array_text(char, name
, 32)
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
)
365 __field(long, range_start
)
366 __field(long, range_end
)
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)
383 tp_assign(range_start
, (long)wbc
->range_start
)
384 tp_assign(range_end
, (long)wbc
->range_end
)
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 "
391 "bgrd=%d reclm=%d cyclic=%d "
393 "start=0x%lx end=0x%lx",
395 __entry
->nr_to_write
,
396 __entry
->pages_skipped
,
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))
404 __entry
->older_than_this
,
406 __entry
->range_start
,
410 #undef DEFINE_WBC_EVENT
411 #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
412 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
413 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
415 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
416 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start
, writeback_wbc_writeback_start
)
417 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written
, writeback_wbc_writeback_written
)
418 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait
, writeback_wbc_writeback_wait
)
419 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start
, writeback_wbc_balance_dirty_start
)
420 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written
, writeback_wbc_balance_dirty_written
)
421 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait
, writeback_wbc_balance_dirty_wait
)
423 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage
, writeback_wbc_writepage
)
425 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
426 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
427 TP_PROTO(struct bdi_writeback
*wb
,
428 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
429 struct wb_writeback_work
*work
,
431 unsigned long *older_than_this
,
434 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
435 TP_ARGS(wb
, work
, moved
),
437 TP_ARGS(wb
, older_than_this
, moved
),
440 __array(char, name
, 32)
441 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
443 __field(unsigned long, older
)
449 tp_memcpy(name
, dev_name(wb
->bdi
->dev
), 32)
450 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
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)
456 tp_assign(moved
, moved
)
458 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
459 TP_printk("bdi %s: enqueue=%d",
464 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d",
466 __entry
->older
, /* older_than_this in jiffies */
467 __entry
->age
, /* older_than_this in relative milliseconds */
473 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
475 writeback_global_dirty_state
,
477 TP_PROTO(unsigned long background_thresh
,
478 unsigned long dirty_thresh
481 TP_ARGS(background_thresh
,
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
)
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
)
507 TP_printk("dirty=%lu writeback=%lu unstable=%lu "
508 "bg_thresh=%lu thresh=%lu limit=%lu "
509 "dirtied=%lu written=%lu",
511 __entry
->nr_writeback
,
512 __entry
->nr_unstable
,
513 __entry
->background_thresh
,
514 __entry
->dirty_thresh
,
515 __entry
->dirty_limit
,
522 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
524 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
526 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
528 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
530 writeback_bdi_dirty_ratelimit
,
532 TP_PROTO(struct backing_dev_info
*bdi
,
533 unsigned long dirty_rate
,
534 unsigned long task_ratelimit
),
536 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
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
)
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
))
560 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
561 "dirty_ratelimit=%lu task_ratelimit=%lu "
562 "balanced_dirty_ratelimit=%lu",
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 */
575 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
577 writeback_bdi_dirty_ratelimit
,
579 TP_PROTO(struct backing_dev_info
*bdi
,
580 unsigned long dirty_rate
,
581 unsigned long task_ratelimit
),
583 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
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
)
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
))
607 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
608 "dirty_ratelimit=%lu task_ratelimit=%lu "
609 "balanced_dirty_ratelimit=%lu",
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 */
622 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
624 writeback_balance_dirty_pages
,
626 TP_PROTO(struct backing_dev_info
*bdi
,
627 unsigned long thresh
,
628 unsigned long bg_thresh
,
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
,
639 unsigned long start_time
),
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
),
646 dirtied
, pause
, start_time
),
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
)
668 tp_memcpy(bdi
, dev_name(bdi
->dev
), 32)
669 tp_assign(limit
, global_dirty_limit
)
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
)
686 tp_assign(pause
, pause
* 1000 / HZ
)
687 tp_assign(paused
, (jiffies
- start_time
) * 1000 / HZ
)
691 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
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",
702 __entry
->bdi_setpoint
,
704 __entry
->dirty_ratelimit
,
705 __entry
->task_ratelimit
,
707 __entry
->dirtied_pause
,
708 __entry
->paused
, /* ms */
709 __entry
->pause
, /* ms */
710 __entry
->period
, /* ms */
711 __entry
->think
/* ms */
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",
724 __entry
->bdi_setpoint
,
726 __entry
->dirty_ratelimit
,
727 __entry
->task_ratelimit
,
729 __entry
->dirtied_pause
,
730 __entry
->paused
, /* ms */
731 __entry
->pause
/* ms */
737 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
738 LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue
,
740 TP_PROTO(struct inode
*inode
),
744 __array_text(char, name
, 32)
745 __field(unsigned long, ino
)
746 __field(unsigned long, state
)
747 __field(unsigned long, dirtied_when
)
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
)
757 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu",
760 show_inode_state(__entry
->state
),
761 __entry
->dirtied_when
,
762 (jiffies
- __entry
->dirtied_when
) / HZ
767 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
768 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template
,
770 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
772 TP_ARGS(usec_timeout
, usec_delayed
),
775 __field( unsigned int, usec_timeout
)
776 __field( unsigned int, usec_delayed
)
780 tp_assign(usec_timeout
, usec_timeout
)
781 tp_assign(usec_delayed
, usec_delayed
)
784 TP_printk("usec_timeout=%u usec_delayed=%u",
785 __entry
->usec_timeout
,
786 __entry
->usec_delayed
)
789 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_congestion_wait
,
791 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
793 TP_ARGS(usec_timeout
, usec_delayed
)
796 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_wait_iff_congested
,
798 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
800 TP_ARGS(usec_timeout
, usec_delayed
)
804 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
805 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template
,
807 TP_PROTO(struct inode
*inode
,
808 struct writeback_control
*wbc
,
809 unsigned long nr_to_write
812 TP_ARGS(inode
, wbc
, nr_to_write
),
815 __array_text(char, name
, 32)
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
)
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
)
834 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
835 "index=%lu to_write=%ld wrote=%lu",
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
,
847 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
848 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode_requeue
,
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
)
856 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode
,
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
)
864 #endif /* LTTNG_TRACE_WRITEBACK_H */
866 /* This part must be outside protection */
867 #include "../../../probes/define_trace.h"