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(4,3,0))
227 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
228 TP_PROTO(struct bdi_writeback
*wb
, struct wb_writeback_work
*work
),
231 __array_text(char, name
, 32)
234 tp_memcpy(name
, wb
->bdi
->dev
? dev_name(wb
->bdi
->dev
) :
242 #elif (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
, bdi
->dev
? dev_name(bdi
->dev
) :
259 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
261 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
262 TP_PROTO(struct backing_dev_info
*bdi
, struct wb_writeback_work
*work
),
265 __array_text(char, name
, 32)
268 tp_memcpy(name
, dev_name(bdi
->dev
? bdi
->dev
:
269 default_backing_dev_info
.dev
), 32)
276 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
278 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
280 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
281 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
282 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
285 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
287 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
288 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
289 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
292 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
294 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread
)
295 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue
)
296 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec
)
297 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
298 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start
)
299 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written
)
300 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait
)
303 LTTNG_TRACEPOINT_EVENT(writeback_pages_written
,
304 TP_PROTO(long pages_written
),
305 TP_ARGS(pages_written
),
310 tp_assign(pages
, pages_written
)
312 TP_printk("%ld", __entry
->pages
)
315 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
317 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
318 TP_PROTO(struct bdi_writeback
*wb
),
321 __array_text(char, name
, 32)
324 tp_memcpy(name
, dev_name(wb
->bdi
->dev
), 32)
331 #undef DEFINE_WRITEBACK_EVENT
332 #define DEFINE_WRITEBACK_EVENT(name) \
333 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
334 TP_PROTO(struct bdi_writeback *wb), \
337 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
338 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
339 TP_PROTO(struct bdi_writeback *wb), \
342 LTTNG_TRACEPOINT_EVENT(writeback_bdi_register
,
343 TP_PROTO(struct backing_dev_info
*bdi
),
346 __array_text(char, name
, 32)
349 tp_memcpy(name
, dev_name(bdi
->dev
), 32)
356 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
358 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
359 TP_PROTO(struct backing_dev_info
*bdi
),
362 __array_text(char, name
, 32)
365 tp_memcpy(name
, dev_name(bdi
->dev
), 32)
372 #undef DEFINE_WRITEBACK_EVENT
373 #define DEFINE_WRITEBACK_EVENT(name) \
374 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
375 TP_PROTO(struct backing_dev_info *bdi), \
378 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
379 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
380 TP_PROTO(struct backing_dev_info *bdi), \
383 DEFINE_WRITEBACK_EVENT(writeback_bdi_register
)
385 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
387 DEFINE_WRITEBACK_EVENT(writeback_nowork
)
388 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
389 DEFINE_WRITEBACK_EVENT(writeback_wake_background
)
391 DEFINE_WRITEBACK_EVENT(writeback_wake_thread
)
392 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread
)
393 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister
)
394 DEFINE_WRITEBACK_EVENT(writeback_thread_start
)
395 DEFINE_WRITEBACK_EVENT(writeback_thread_stop
)
396 #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
397 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start
, writeback_balance_dirty_start
)
398 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait
, writeback_balance_dirty_wait
)
400 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written
,
402 writeback_balance_dirty_written
,
404 TP_PROTO(struct backing_dev_info
*bdi
, int written
),
406 TP_ARGS(bdi
, written
),
409 __array(char, name
, 32)
410 __field(int, written
)
414 tp_memcpy(name
, dev_name(bdi
->dev
), 32)
415 tp_assign(written
, written
)
418 TP_printk("bdi %s written %d",
425 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class
,
426 TP_PROTO(struct writeback_control
*wbc
, struct backing_dev_info
*bdi
),
429 __array_text(char, name
, 32)
430 __field(long, nr_to_write
)
431 __field(long, pages_skipped
)
432 __field(int, sync_mode
)
433 __field(int, for_kupdate
)
434 __field(int, for_background
)
435 __field(int, for_reclaim
)
436 __field(int, range_cyclic
)
437 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
438 __field(int, more_io
)
439 __field(unsigned long, older_than_this
)
441 __field(long, range_start
)
442 __field(long, range_end
)
446 tp_memcpy(name
, dev_name(bdi
->dev
), 32)
447 tp_assign(nr_to_write
, wbc
->nr_to_write
)
448 tp_assign(pages_skipped
, wbc
->pages_skipped
)
449 tp_assign(sync_mode
, wbc
->sync_mode
)
450 tp_assign(for_kupdate
, wbc
->for_kupdate
)
451 tp_assign(for_background
, wbc
->for_background
)
452 tp_assign(for_reclaim
, wbc
->for_reclaim
)
453 tp_assign(range_cyclic
, wbc
->range_cyclic
)
454 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
455 tp_assign(more_io
, wbc
->more_io
)
456 tp_assign(older_than_this
, wbc
->older_than_this
?
457 *wbc
->older_than_this
: 0)
459 tp_assign(range_start
, (long)wbc
->range_start
)
460 tp_assign(range_end
, (long)wbc
->range_end
)
463 TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
464 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
465 "bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx "
467 "bgrd=%d reclm=%d cyclic=%d "
469 "start=0x%lx end=0x%lx",
471 __entry
->nr_to_write
,
472 __entry
->pages_skipped
,
474 __entry
->for_kupdate
,
475 __entry
->for_background
,
476 __entry
->for_reclaim
,
477 __entry
->range_cyclic
,
478 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
480 __entry
->older_than_this
,
482 __entry
->range_start
,
486 #undef DEFINE_WBC_EVENT
487 #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
488 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
489 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
491 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
492 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start
, writeback_wbc_writeback_start
)
493 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written
, writeback_wbc_writeback_written
)
494 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait
, writeback_wbc_writeback_wait
)
495 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start
, writeback_wbc_balance_dirty_start
)
496 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written
, writeback_wbc_balance_dirty_written
)
497 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait
, writeback_wbc_balance_dirty_wait
)
499 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage
, writeback_wbc_writepage
)
501 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
502 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
503 TP_PROTO(struct bdi_writeback
*wb
,
504 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
505 struct wb_writeback_work
*work
,
507 unsigned long *older_than_this
,
510 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
511 TP_ARGS(wb
, work
, moved
),
513 TP_ARGS(wb
, older_than_this
, moved
),
516 __array(char, name
, 32)
517 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
519 __field(unsigned long, older
)
525 tp_memcpy(name
, dev_name(wb
->bdi
->dev
), 32)
526 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
528 tp_assign(older
, older_than_this
? *older_than_this
: 0)
529 tp_assign(age
, older_than_this
?
530 (jiffies
- *older_than_this
) * 1000 / HZ
: -1)
532 tp_assign(moved
, moved
)
534 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
535 TP_printk("bdi %s: enqueue=%d",
540 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d",
542 __entry
->older
, /* older_than_this in jiffies */
543 __entry
->age
, /* older_than_this in relative milliseconds */
549 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
551 writeback_global_dirty_state
,
553 TP_PROTO(unsigned long background_thresh
,
554 unsigned long dirty_thresh
557 TP_ARGS(background_thresh
,
562 __field(unsigned long, nr_dirty
)
563 __field(unsigned long, nr_writeback
)
564 __field(unsigned long, nr_unstable
)
565 __field(unsigned long, background_thresh
)
566 __field(unsigned long, dirty_thresh
)
567 __field(unsigned long, dirty_limit
)
568 __field(unsigned long, nr_dirtied
)
569 __field(unsigned long, nr_written
)
573 tp_assign(nr_dirty
, global_page_state(NR_FILE_DIRTY
))
574 tp_assign(nr_writeback
, global_page_state(NR_WRITEBACK
))
575 tp_assign(nr_unstable
, global_page_state(NR_UNSTABLE_NFS
))
576 tp_assign(nr_dirtied
, global_page_state(NR_DIRTIED
))
577 tp_assign(nr_written
, global_page_state(NR_WRITTEN
))
578 tp_assign(background_thresh
, background_thresh
)
579 tp_assign(dirty_thresh
, dirty_thresh
)
580 tp_assign(dirty_limit
, global_dirty_limit
)
583 TP_printk("dirty=%lu writeback=%lu unstable=%lu "
584 "bg_thresh=%lu thresh=%lu limit=%lu "
585 "dirtied=%lu written=%lu",
587 __entry
->nr_writeback
,
588 __entry
->nr_unstable
,
589 __entry
->background_thresh
,
590 __entry
->dirty_thresh
,
591 __entry
->dirty_limit
,
598 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
600 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
602 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
604 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
606 writeback_bdi_dirty_ratelimit
,
608 TP_PROTO(struct bdi_writeback
*wb
,
609 unsigned long dirty_rate
,
610 unsigned long task_ratelimit
),
612 TP_ARGS(wb
, dirty_rate
, task_ratelimit
),
615 __array(char, bdi
, 32)
616 __field(unsigned long, write_bw
)
617 __field(unsigned long, avg_write_bw
)
618 __field(unsigned long, dirty_rate
)
619 __field(unsigned long, dirty_ratelimit
)
620 __field(unsigned long, task_ratelimit
)
621 __field(unsigned long, balanced_dirty_ratelimit
)
625 tp_memcpy(bdi
, dev_name(wb
->bdi
->dev
), 32)
626 tp_assign(write_bw
, KBps(wb
->bdi
->wb
.write_bandwidth
))
627 tp_assign(avg_write_bw
, KBps(wb
->bdi
->wb
.avg_write_bandwidth
))
628 tp_assign(dirty_rate
, KBps(dirty_rate
))
629 tp_assign(dirty_ratelimit
, KBps(wb
->bdi
->wb
.dirty_ratelimit
))
630 tp_assign(task_ratelimit
, KBps(task_ratelimit
))
631 tp_assign(balanced_dirty_ratelimit
,
632 KBps(wb
->bdi
->wb
.balanced_dirty_ratelimit
))
636 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
637 "dirty_ratelimit=%lu task_ratelimit=%lu "
638 "balanced_dirty_ratelimit=%lu",
640 __entry
->write_bw
, /* write bandwidth */
641 __entry
->avg_write_bw
, /* avg write bandwidth */
642 __entry
->dirty_rate
, /* bdi dirty rate */
643 __entry
->dirty_ratelimit
, /* base ratelimit */
644 __entry
->task_ratelimit
, /* ratelimit with position control */
645 __entry
->balanced_dirty_ratelimit
/* the balanced ratelimit */
649 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
651 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
653 writeback_bdi_dirty_ratelimit
,
655 TP_PROTO(struct backing_dev_info
*bdi
,
656 unsigned long dirty_rate
,
657 unsigned long task_ratelimit
),
659 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
662 __array(char, bdi
, 32)
663 __field(unsigned long, write_bw
)
664 __field(unsigned long, avg_write_bw
)
665 __field(unsigned long, dirty_rate
)
666 __field(unsigned long, dirty_ratelimit
)
667 __field(unsigned long, task_ratelimit
)
668 __field(unsigned long, balanced_dirty_ratelimit
)
672 tp_memcpy(bdi
, dev_name(bdi
->dev
), 32)
673 tp_assign(write_bw
, KBps(bdi
->wb
.write_bandwidth
))
674 tp_assign(avg_write_bw
, KBps(bdi
->wb
.avg_write_bandwidth
))
675 tp_assign(dirty_rate
, KBps(dirty_rate
))
676 tp_assign(dirty_ratelimit
, KBps(bdi
->wb
.dirty_ratelimit
))
677 tp_assign(task_ratelimit
, KBps(task_ratelimit
))
678 tp_assign(balanced_dirty_ratelimit
,
679 KBps(bdi
->wb
.balanced_dirty_ratelimit
))
683 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
684 "dirty_ratelimit=%lu task_ratelimit=%lu "
685 "balanced_dirty_ratelimit=%lu",
687 __entry
->write_bw
, /* write bandwidth */
688 __entry
->avg_write_bw
, /* avg write bandwidth */
689 __entry
->dirty_rate
, /* bdi dirty rate */
690 __entry
->dirty_ratelimit
, /* base ratelimit */
691 __entry
->task_ratelimit
, /* ratelimit with position control */
692 __entry
->balanced_dirty_ratelimit
/* the balanced ratelimit */
698 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
700 writeback_bdi_dirty_ratelimit
,
702 TP_PROTO(struct backing_dev_info
*bdi
,
703 unsigned long dirty_rate
,
704 unsigned long task_ratelimit
),
706 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
709 __array(char, bdi
, 32)
710 __field(unsigned long, write_bw
)
711 __field(unsigned long, avg_write_bw
)
712 __field(unsigned long, dirty_rate
)
713 __field(unsigned long, dirty_ratelimit
)
714 __field(unsigned long, task_ratelimit
)
715 __field(unsigned long, balanced_dirty_ratelimit
)
719 tp_memcpy(bdi
, dev_name(bdi
->dev
), 32)
720 tp_assign(write_bw
, KBps(bdi
->write_bandwidth
))
721 tp_assign(avg_write_bw
, KBps(bdi
->avg_write_bandwidth
))
722 tp_assign(dirty_rate
, KBps(dirty_rate
))
723 tp_assign(dirty_ratelimit
, KBps(bdi
->dirty_ratelimit
))
724 tp_assign(task_ratelimit
, KBps(task_ratelimit
))
725 tp_assign(balanced_dirty_ratelimit
,
726 KBps(bdi
->balanced_dirty_ratelimit
))
730 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
731 "dirty_ratelimit=%lu task_ratelimit=%lu "
732 "balanced_dirty_ratelimit=%lu",
734 __entry
->write_bw
, /* write bandwidth */
735 __entry
->avg_write_bw
, /* avg write bandwidth */
736 __entry
->dirty_rate
, /* bdi dirty rate */
737 __entry
->dirty_ratelimit
, /* base ratelimit */
738 __entry
->task_ratelimit
, /* ratelimit with position control */
739 __entry
->balanced_dirty_ratelimit
/* the balanced ratelimit */
745 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
747 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
749 writeback_balance_dirty_pages
,
751 TP_PROTO(struct bdi_writeback
*wb
,
752 unsigned long thresh
,
753 unsigned long bg_thresh
,
755 unsigned long bdi_thresh
,
756 unsigned long bdi_dirty
,
757 unsigned long dirty_ratelimit
,
758 unsigned long task_ratelimit
,
759 unsigned long dirtied
,
760 unsigned long period
,
762 unsigned long start_time
),
764 TP_ARGS(wb
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
765 dirty_ratelimit
, task_ratelimit
,
766 dirtied
, period
, pause
, start_time
770 __array( char, bdi
, 32)
771 __field(unsigned long, limit
)
772 __field(unsigned long, setpoint
)
773 __field(unsigned long, dirty
)
774 __field(unsigned long, bdi_setpoint
)
775 __field(unsigned long, bdi_dirty
)
776 __field(unsigned long, dirty_ratelimit
)
777 __field(unsigned long, task_ratelimit
)
778 __field(unsigned int, dirtied
)
779 __field(unsigned int, dirtied_pause
)
780 __field(unsigned long, paused
)
781 __field( long, pause
)
782 __field(unsigned long, period
)
783 __field( long, think
)
787 tp_memcpy(bdi
, dev_name(wb
->bdi
->dev
), 32)
788 tp_assign(limit
, global_dirty_limit
)
790 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
791 tp_assign(dirty
, dirty
)
792 tp_assign(bdi_setpoint
,
793 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
794 bdi_thresh
/ (thresh
+ 1))
795 tp_assign(bdi_dirty
, bdi_dirty
)
796 tp_assign(dirty_ratelimit
, KBps(dirty_ratelimit
))
797 tp_assign(task_ratelimit
, KBps(task_ratelimit
))
798 tp_assign(dirtied
, dirtied
)
799 tp_assign(dirtied_pause
, current
->nr_dirtied_pause
)
800 tp_assign(think
, current
->dirty_paused_when
== 0 ? 0 :
801 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
802 tp_assign(period
, period
* 1000 / HZ
)
803 tp_assign(pause
, pause
* 1000 / HZ
)
804 tp_assign(paused
, (jiffies
- start_time
) * 1000 / HZ
)
809 "limit=%lu setpoint=%lu dirty=%lu "
810 "bdi_setpoint=%lu bdi_dirty=%lu "
811 "dirty_ratelimit=%lu task_ratelimit=%lu "
812 "dirtied=%u dirtied_pause=%u "
813 "paused=%lu pause=%ld period=%lu think=%ld",
818 __entry
->bdi_setpoint
,
820 __entry
->dirty_ratelimit
,
821 __entry
->task_ratelimit
,
823 __entry
->dirtied_pause
,
824 __entry
->paused
, /* ms */
825 __entry
->pause
, /* ms */
826 __entry
->period
, /* ms */
827 __entry
->think
/* ms */
831 #else /* #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
833 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
835 writeback_balance_dirty_pages
,
837 TP_PROTO(struct backing_dev_info
*bdi
,
838 unsigned long thresh
,
839 unsigned long bg_thresh
,
841 unsigned long bdi_thresh
,
842 unsigned long bdi_dirty
,
843 unsigned long dirty_ratelimit
,
844 unsigned long task_ratelimit
,
845 unsigned long dirtied
,
846 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
847 unsigned long period
,
850 unsigned long start_time
),
852 TP_ARGS(bdi
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
853 dirty_ratelimit
, task_ratelimit
,
854 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
855 dirtied
, period
, pause
, start_time
),
857 dirtied
, pause
, start_time
),
860 __array( char, bdi
, 32)
861 __field(unsigned long, limit
)
862 __field(unsigned long, setpoint
)
863 __field(unsigned long, dirty
)
864 __field(unsigned long, bdi_setpoint
)
865 __field(unsigned long, bdi_dirty
)
866 __field(unsigned long, dirty_ratelimit
)
867 __field(unsigned long, task_ratelimit
)
868 __field(unsigned int, dirtied
)
869 __field(unsigned int, dirtied_pause
)
870 __field(unsigned long, paused
)
871 __field( long, pause
)
872 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
873 __field(unsigned long, period
)
874 __field( long, think
)
879 tp_memcpy(bdi
, dev_name(bdi
->dev
), 32)
880 tp_assign(limit
, global_dirty_limit
)
882 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
883 tp_assign(dirty
, dirty
)
884 tp_assign(bdi_setpoint
,
885 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
886 bdi_thresh
/ (thresh
+ 1))
887 tp_assign(bdi_dirty
, bdi_dirty
)
888 tp_assign(dirty_ratelimit
, KBps(dirty_ratelimit
))
889 tp_assign(task_ratelimit
, KBps(task_ratelimit
))
890 tp_assign(dirtied
, dirtied
)
891 tp_assign(dirtied_pause
, current
->nr_dirtied_pause
)
892 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
893 tp_assign(think
, current
->dirty_paused_when
== 0 ? 0 :
894 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
895 tp_assign(period
, period
* 1000 / HZ
)
897 tp_assign(pause
, pause
* 1000 / HZ
)
898 tp_assign(paused
, (jiffies
- start_time
) * 1000 / HZ
)
902 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
904 "limit=%lu setpoint=%lu dirty=%lu "
905 "bdi_setpoint=%lu bdi_dirty=%lu "
906 "dirty_ratelimit=%lu task_ratelimit=%lu "
907 "dirtied=%u dirtied_pause=%u "
908 "paused=%lu pause=%ld period=%lu think=%ld",
913 __entry
->bdi_setpoint
,
915 __entry
->dirty_ratelimit
,
916 __entry
->task_ratelimit
,
918 __entry
->dirtied_pause
,
919 __entry
->paused
, /* ms */
920 __entry
->pause
, /* ms */
921 __entry
->period
, /* ms */
922 __entry
->think
/* ms */
926 "limit=%lu setpoint=%lu dirty=%lu "
927 "bdi_setpoint=%lu bdi_dirty=%lu "
928 "dirty_ratelimit=%lu task_ratelimit=%lu "
929 "dirtied=%u dirtied_pause=%u "
930 "paused=%lu pause=%ld",
935 __entry
->bdi_setpoint
,
937 __entry
->dirty_ratelimit
,
938 __entry
->task_ratelimit
,
940 __entry
->dirtied_pause
,
941 __entry
->paused
, /* ms */
942 __entry
->pause
/* ms */
946 #endif /* #else #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
948 #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) */
950 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
951 LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue
,
953 TP_PROTO(struct inode
*inode
),
957 __array_text(char, name
, 32)
958 __field(unsigned long, ino
)
959 __field(unsigned long, state
)
960 __field(unsigned long, dirtied_when
)
964 tp_memcpy(name
, dev_name(inode_to_bdi(inode
)->dev
), 32)
965 tp_assign(ino
, inode
->i_ino
)
966 tp_assign(state
, inode
->i_state
)
967 tp_assign(dirtied_when
, inode
->dirtied_when
)
970 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu",
973 show_inode_state(__entry
->state
),
974 __entry
->dirtied_when
,
975 (jiffies
- __entry
->dirtied_when
) / HZ
980 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
981 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template
,
983 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
985 TP_ARGS(usec_timeout
, usec_delayed
),
988 __field( unsigned int, usec_timeout
)
989 __field( unsigned int, usec_delayed
)
993 tp_assign(usec_timeout
, usec_timeout
)
994 tp_assign(usec_delayed
, usec_delayed
)
997 TP_printk("usec_timeout=%u usec_delayed=%u",
998 __entry
->usec_timeout
,
999 __entry
->usec_delayed
)
1002 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_congestion_wait
,
1004 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
1006 TP_ARGS(usec_timeout
, usec_delayed
)
1009 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_wait_iff_congested
,
1011 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
1013 TP_ARGS(usec_timeout
, usec_delayed
)
1017 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
1018 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template
,
1020 TP_PROTO(struct inode
*inode
,
1021 struct writeback_control
*wbc
,
1022 unsigned long nr_to_write
1025 TP_ARGS(inode
, wbc
, nr_to_write
),
1028 __array_text(char, name
, 32)
1029 __field(unsigned long, ino
)
1030 __field(unsigned long, state
)
1031 __field(unsigned long, dirtied_when
)
1032 __field(unsigned long, writeback_index
)
1033 __field(long, nr_to_write
)
1034 __field(unsigned long, wrote
)
1038 tp_memcpy(name
, dev_name(inode_to_bdi(inode
)->dev
), 32)
1039 tp_assign(ino
, inode
->i_ino
)
1040 tp_assign(state
, inode
->i_state
)
1041 tp_assign(dirtied_when
, inode
->dirtied_when
)
1042 tp_assign(writeback_index
, inode
->i_mapping
->writeback_index
)
1043 tp_assign(nr_to_write
, nr_to_write
)
1044 tp_assign(wrote
, nr_to_write
- wbc
->nr_to_write
)
1047 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
1048 "index=%lu to_write=%ld wrote=%lu",
1051 show_inode_state(__entry
->state
),
1052 __entry
->dirtied_when
,
1053 (jiffies
- __entry
->dirtied_when
) / HZ
,
1054 __entry
->writeback_index
,
1055 __entry
->nr_to_write
,
1060 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
1061 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode_requeue
,
1062 TP_PROTO(struct inode
*inode
,
1063 struct writeback_control
*wbc
,
1064 unsigned long nr_to_write
),
1065 TP_ARGS(inode
, wbc
, nr_to_write
)
1069 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode
,
1070 TP_PROTO(struct inode
*inode
,
1071 struct writeback_control
*wbc
,
1072 unsigned long nr_to_write
),
1073 TP_ARGS(inode
, wbc
, nr_to_write
)
1077 #endif /* LTTNG_TRACE_WRITEBACK_H */
1079 /* This part must be outside protection */
1080 #include "../../../probes/define_trace.h"