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 ctf_array_text(char, name
, wb
->bdi
->dev
? dev_name(wb
->bdi
->dev
) :
236 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
238 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
239 TP_PROTO(struct backing_dev_info
*bdi
, struct wb_writeback_work
*work
),
242 __array_text(char, name
, 32)
245 tp_memcpy(name
, bdi
->dev
? dev_name(bdi
->dev
) :
253 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
255 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
256 TP_PROTO(struct backing_dev_info
*bdi
, struct wb_writeback_work
*work
),
259 __array_text(char, name
, 32)
262 tp_memcpy(name
, dev_name(bdi
->dev
? bdi
->dev
:
263 default_backing_dev_info
.dev
), 32)
270 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
272 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
274 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
275 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
276 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
279 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
281 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
282 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
283 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
286 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
288 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread
)
289 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue
)
290 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec
)
291 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
292 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start
)
293 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written
)
294 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait
)
297 LTTNG_TRACEPOINT_EVENT(writeback_pages_written
,
298 TP_PROTO(long pages_written
),
299 TP_ARGS(pages_written
),
304 tp_assign(pages
, pages_written
)
306 TP_printk("%ld", __entry
->pages
)
309 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
311 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
312 TP_PROTO(struct bdi_writeback
*wb
),
315 ctf_array_text(char, name
,
316 dev_name(wb
->bdi
->dev
), 32)
320 #undef DEFINE_WRITEBACK_EVENT
321 #define DEFINE_WRITEBACK_EVENT(name) \
322 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
323 TP_PROTO(struct bdi_writeback *wb), \
326 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
327 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
328 TP_PROTO(struct bdi_writeback *wb), \
331 LTTNG_TRACEPOINT_EVENT(writeback_bdi_register
,
332 TP_PROTO(struct backing_dev_info
*bdi
),
335 ctf_array_text(char, name
,
336 dev_name(bdi
->dev
), 32)
340 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
342 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
343 TP_PROTO(struct backing_dev_info
*bdi
),
346 __array_text(char, name
, 32)
349 tp_memcpy(name
, dev_name(bdi
->dev
), 32)
356 #undef DEFINE_WRITEBACK_EVENT
357 #define DEFINE_WRITEBACK_EVENT(name) \
358 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
359 TP_PROTO(struct backing_dev_info *bdi), \
362 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
363 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
364 TP_PROTO(struct backing_dev_info *bdi), \
367 DEFINE_WRITEBACK_EVENT(writeback_bdi_register
)
369 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
371 DEFINE_WRITEBACK_EVENT(writeback_nowork
)
372 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
373 DEFINE_WRITEBACK_EVENT(writeback_wake_background
)
375 DEFINE_WRITEBACK_EVENT(writeback_wake_thread
)
376 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread
)
377 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister
)
378 DEFINE_WRITEBACK_EVENT(writeback_thread_start
)
379 DEFINE_WRITEBACK_EVENT(writeback_thread_stop
)
380 #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
381 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start
, writeback_balance_dirty_start
)
382 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait
, writeback_balance_dirty_wait
)
384 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written
,
386 writeback_balance_dirty_written
,
388 TP_PROTO(struct backing_dev_info
*bdi
, int written
),
390 TP_ARGS(bdi
, written
),
393 __array(char, name
, 32)
394 __field(int, written
)
398 tp_memcpy(name
, dev_name(bdi
->dev
), 32)
399 tp_assign(written
, written
)
402 TP_printk("bdi %s written %d",
409 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class
,
410 TP_PROTO(struct writeback_control
*wbc
, struct backing_dev_info
*bdi
),
413 __array_text(char, name
, 32)
414 __field(long, nr_to_write
)
415 __field(long, pages_skipped
)
416 __field(int, sync_mode
)
417 __field(int, for_kupdate
)
418 __field(int, for_background
)
419 __field(int, for_reclaim
)
420 __field(int, range_cyclic
)
421 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
422 __field(int, more_io
)
423 __field(unsigned long, older_than_this
)
425 __field(long, range_start
)
426 __field(long, range_end
)
430 tp_memcpy(name
, dev_name(bdi
->dev
), 32)
431 tp_assign(nr_to_write
, wbc
->nr_to_write
)
432 tp_assign(pages_skipped
, wbc
->pages_skipped
)
433 tp_assign(sync_mode
, wbc
->sync_mode
)
434 tp_assign(for_kupdate
, wbc
->for_kupdate
)
435 tp_assign(for_background
, wbc
->for_background
)
436 tp_assign(for_reclaim
, wbc
->for_reclaim
)
437 tp_assign(range_cyclic
, wbc
->range_cyclic
)
438 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
439 tp_assign(more_io
, wbc
->more_io
)
440 tp_assign(older_than_this
, wbc
->older_than_this
?
441 *wbc
->older_than_this
: 0)
443 tp_assign(range_start
, (long)wbc
->range_start
)
444 tp_assign(range_end
, (long)wbc
->range_end
)
447 TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
448 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
449 "bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx "
451 "bgrd=%d reclm=%d cyclic=%d "
453 "start=0x%lx end=0x%lx",
455 __entry
->nr_to_write
,
456 __entry
->pages_skipped
,
458 __entry
->for_kupdate
,
459 __entry
->for_background
,
460 __entry
->for_reclaim
,
461 __entry
->range_cyclic
,
462 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
464 __entry
->older_than_this
,
466 __entry
->range_start
,
470 #undef DEFINE_WBC_EVENT
471 #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
472 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
473 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
475 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
476 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start
, writeback_wbc_writeback_start
)
477 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written
, writeback_wbc_writeback_written
)
478 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait
, writeback_wbc_writeback_wait
)
479 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start
, writeback_wbc_balance_dirty_start
)
480 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written
, writeback_wbc_balance_dirty_written
)
481 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait
, writeback_wbc_balance_dirty_wait
)
483 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage
, writeback_wbc_writepage
)
485 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
486 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
487 TP_PROTO(struct bdi_writeback
*wb
,
488 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
489 struct wb_writeback_work
*work
,
491 unsigned long *older_than_this
,
494 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
495 TP_ARGS(wb
, work
, moved
),
497 TP_ARGS(wb
, older_than_this
, moved
),
500 __array(char, name
, 32)
501 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
503 __field(unsigned long, older
)
509 tp_memcpy(name
, dev_name(wb
->bdi
->dev
), 32)
510 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
512 tp_assign(older
, older_than_this
? *older_than_this
: 0)
513 tp_assign(age
, older_than_this
?
514 (jiffies
- *older_than_this
) * 1000 / HZ
: -1)
516 tp_assign(moved
, moved
)
518 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
519 TP_printk("bdi %s: enqueue=%d",
524 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d",
526 __entry
->older
, /* older_than_this in jiffies */
527 __entry
->age
, /* older_than_this in relative milliseconds */
533 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
535 writeback_global_dirty_state
,
537 TP_PROTO(unsigned long background_thresh
,
538 unsigned long dirty_thresh
541 TP_ARGS(background_thresh
,
546 __field(unsigned long, nr_dirty
)
547 __field(unsigned long, nr_writeback
)
548 __field(unsigned long, nr_unstable
)
549 __field(unsigned long, background_thresh
)
550 __field(unsigned long, dirty_thresh
)
551 __field(unsigned long, dirty_limit
)
552 __field(unsigned long, nr_dirtied
)
553 __field(unsigned long, nr_written
)
557 tp_assign(nr_dirty
, global_page_state(NR_FILE_DIRTY
))
558 tp_assign(nr_writeback
, global_page_state(NR_WRITEBACK
))
559 tp_assign(nr_unstable
, global_page_state(NR_UNSTABLE_NFS
))
560 tp_assign(nr_dirtied
, global_page_state(NR_DIRTIED
))
561 tp_assign(nr_written
, global_page_state(NR_WRITTEN
))
562 tp_assign(background_thresh
, background_thresh
)
563 tp_assign(dirty_thresh
, dirty_thresh
)
564 tp_assign(dirty_limit
, global_dirty_limit
)
567 TP_printk("dirty=%lu writeback=%lu unstable=%lu "
568 "bg_thresh=%lu thresh=%lu limit=%lu "
569 "dirtied=%lu written=%lu",
571 __entry
->nr_writeback
,
572 __entry
->nr_unstable
,
573 __entry
->background_thresh
,
574 __entry
->dirty_thresh
,
575 __entry
->dirty_limit
,
582 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
584 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
586 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
588 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
590 writeback_bdi_dirty_ratelimit
,
592 TP_PROTO(struct bdi_writeback
*wb
,
593 unsigned long dirty_rate
,
594 unsigned long task_ratelimit
),
596 TP_ARGS(wb
, dirty_rate
, task_ratelimit
),
599 ctf_array_text(char, bdi
, dev_name(wb
->bdi
->dev
), 32)
600 ctf_integer(unsigned long, write_bw
, KBps(wb
->bdi
->wb
.write_bandwidth
))
601 ctf_integer(unsigned long, avg_write_bw
, KBps(wb
->bdi
->wb
.avg_write_bandwidth
))
602 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
603 ctf_integer(unsigned long, dirty_ratelimit
, KBps(wb
->bdi
->wb
.dirty_ratelimit
))
604 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
605 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
606 KBps(wb
->bdi
->wb
.balanced_dirty_ratelimit
))
610 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
612 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
614 writeback_bdi_dirty_ratelimit
,
616 TP_PROTO(struct backing_dev_info
*bdi
,
617 unsigned long dirty_rate
,
618 unsigned long task_ratelimit
),
620 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
623 __array(char, bdi
, 32)
624 __field(unsigned long, write_bw
)
625 __field(unsigned long, avg_write_bw
)
626 __field(unsigned long, dirty_rate
)
627 __field(unsigned long, dirty_ratelimit
)
628 __field(unsigned long, task_ratelimit
)
629 __field(unsigned long, balanced_dirty_ratelimit
)
633 tp_memcpy(bdi
, dev_name(bdi
->dev
), 32)
634 tp_assign(write_bw
, KBps(bdi
->wb
.write_bandwidth
))
635 tp_assign(avg_write_bw
, KBps(bdi
->wb
.avg_write_bandwidth
))
636 tp_assign(dirty_rate
, KBps(dirty_rate
))
637 tp_assign(dirty_ratelimit
, KBps(bdi
->wb
.dirty_ratelimit
))
638 tp_assign(task_ratelimit
, KBps(task_ratelimit
))
639 tp_assign(balanced_dirty_ratelimit
,
640 KBps(bdi
->wb
.balanced_dirty_ratelimit
))
644 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
645 "dirty_ratelimit=%lu task_ratelimit=%lu "
646 "balanced_dirty_ratelimit=%lu",
648 __entry
->write_bw
, /* write bandwidth */
649 __entry
->avg_write_bw
, /* avg write bandwidth */
650 __entry
->dirty_rate
, /* bdi dirty rate */
651 __entry
->dirty_ratelimit
, /* base ratelimit */
652 __entry
->task_ratelimit
, /* ratelimit with position control */
653 __entry
->balanced_dirty_ratelimit
/* the balanced ratelimit */
659 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
661 writeback_bdi_dirty_ratelimit
,
663 TP_PROTO(struct backing_dev_info
*bdi
,
664 unsigned long dirty_rate
,
665 unsigned long task_ratelimit
),
667 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
670 __array(char, bdi
, 32)
671 __field(unsigned long, write_bw
)
672 __field(unsigned long, avg_write_bw
)
673 __field(unsigned long, dirty_rate
)
674 __field(unsigned long, dirty_ratelimit
)
675 __field(unsigned long, task_ratelimit
)
676 __field(unsigned long, balanced_dirty_ratelimit
)
680 tp_memcpy(bdi
, dev_name(bdi
->dev
), 32)
681 tp_assign(write_bw
, KBps(bdi
->write_bandwidth
))
682 tp_assign(avg_write_bw
, KBps(bdi
->avg_write_bandwidth
))
683 tp_assign(dirty_rate
, KBps(dirty_rate
))
684 tp_assign(dirty_ratelimit
, KBps(bdi
->dirty_ratelimit
))
685 tp_assign(task_ratelimit
, KBps(task_ratelimit
))
686 tp_assign(balanced_dirty_ratelimit
,
687 KBps(bdi
->balanced_dirty_ratelimit
))
691 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
692 "dirty_ratelimit=%lu task_ratelimit=%lu "
693 "balanced_dirty_ratelimit=%lu",
695 __entry
->write_bw
, /* write bandwidth */
696 __entry
->avg_write_bw
, /* avg write bandwidth */
697 __entry
->dirty_rate
, /* bdi dirty rate */
698 __entry
->dirty_ratelimit
, /* base ratelimit */
699 __entry
->task_ratelimit
, /* ratelimit with position control */
700 __entry
->balanced_dirty_ratelimit
/* the balanced ratelimit */
706 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
708 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
710 writeback_balance_dirty_pages
,
712 TP_PROTO(struct bdi_writeback
*wb
,
713 unsigned long thresh
,
714 unsigned long bg_thresh
,
716 unsigned long bdi_thresh
,
717 unsigned long bdi_dirty
,
718 unsigned long dirty_ratelimit
,
719 unsigned long task_ratelimit
,
720 unsigned long dirtied
,
721 unsigned long period
,
723 unsigned long start_time
),
725 TP_ARGS(wb
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
726 dirty_ratelimit
, task_ratelimit
,
727 dirtied
, period
, pause
, start_time
731 ctf_array_text(char, bdi
, dev_name(wb
->bdi
->dev
), 32)
732 ctf_integer(unsigned long, limit
, global_dirty_limit
)
733 ctf_integer(unsigned long, setpoint
,
734 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
735 ctf_integer(unsigned long, dirty
, dirty
)
736 ctf_integer(unsigned long, bdi_setpoint
,
737 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
738 bdi_thresh
/ (thresh
+ 1))
739 ctf_integer(unsigned long, bdi_dirty
, bdi_dirty
)
740 ctf_integer(unsigned long, dirty_ratelimit
,
741 KBps(dirty_ratelimit
))
742 ctf_integer(unsigned long, task_ratelimit
,
743 KBps(task_ratelimit
))
744 ctf_integer(unsigned int, dirtied
, dirtied
)
745 ctf_integer(unsigned int, dirtied_pause
,
746 current
->nr_dirtied_pause
)
747 ctf_integer(unsigned long, paused
,
748 (jiffies
- start_time
) * 1000 / HZ
)
749 ctf_integer(long, pause
, pause
* 1000 / HZ
)
750 ctf_integer(unsigned long, period
,
752 ctf_integer(long, think
,
753 current
->dirty_paused_when
== 0 ? 0 :
754 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
758 #else /* #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
760 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
762 writeback_balance_dirty_pages
,
764 TP_PROTO(struct backing_dev_info
*bdi
,
765 unsigned long thresh
,
766 unsigned long bg_thresh
,
768 unsigned long bdi_thresh
,
769 unsigned long bdi_dirty
,
770 unsigned long dirty_ratelimit
,
771 unsigned long task_ratelimit
,
772 unsigned long dirtied
,
773 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
774 unsigned long period
,
777 unsigned long start_time
),
779 TP_ARGS(bdi
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
780 dirty_ratelimit
, task_ratelimit
,
781 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
782 dirtied
, period
, pause
, start_time
),
784 dirtied
, pause
, start_time
),
787 __array( char, bdi
, 32)
788 __field(unsigned long, limit
)
789 __field(unsigned long, setpoint
)
790 __field(unsigned long, dirty
)
791 __field(unsigned long, bdi_setpoint
)
792 __field(unsigned long, bdi_dirty
)
793 __field(unsigned long, dirty_ratelimit
)
794 __field(unsigned long, task_ratelimit
)
795 __field(unsigned int, dirtied
)
796 __field(unsigned int, dirtied_pause
)
797 __field(unsigned long, paused
)
798 __field( long, pause
)
799 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
800 __field(unsigned long, period
)
801 __field( long, think
)
806 tp_memcpy(bdi
, dev_name(bdi
->dev
), 32)
807 tp_assign(limit
, global_dirty_limit
)
809 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
810 tp_assign(dirty
, dirty
)
811 tp_assign(bdi_setpoint
,
812 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
813 bdi_thresh
/ (thresh
+ 1))
814 tp_assign(bdi_dirty
, bdi_dirty
)
815 tp_assign(dirty_ratelimit
, KBps(dirty_ratelimit
))
816 tp_assign(task_ratelimit
, KBps(task_ratelimit
))
817 tp_assign(dirtied
, dirtied
)
818 tp_assign(dirtied_pause
, current
->nr_dirtied_pause
)
819 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
820 tp_assign(think
, current
->dirty_paused_when
== 0 ? 0 :
821 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
822 tp_assign(period
, period
* 1000 / HZ
)
824 tp_assign(pause
, pause
* 1000 / HZ
)
825 tp_assign(paused
, (jiffies
- start_time
) * 1000 / HZ
)
829 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
831 "limit=%lu setpoint=%lu dirty=%lu "
832 "bdi_setpoint=%lu bdi_dirty=%lu "
833 "dirty_ratelimit=%lu task_ratelimit=%lu "
834 "dirtied=%u dirtied_pause=%u "
835 "paused=%lu pause=%ld period=%lu think=%ld",
840 __entry
->bdi_setpoint
,
842 __entry
->dirty_ratelimit
,
843 __entry
->task_ratelimit
,
845 __entry
->dirtied_pause
,
846 __entry
->paused
, /* ms */
847 __entry
->pause
, /* ms */
848 __entry
->period
, /* ms */
849 __entry
->think
/* ms */
853 "limit=%lu setpoint=%lu dirty=%lu "
854 "bdi_setpoint=%lu bdi_dirty=%lu "
855 "dirty_ratelimit=%lu task_ratelimit=%lu "
856 "dirtied=%u dirtied_pause=%u "
857 "paused=%lu pause=%ld",
862 __entry
->bdi_setpoint
,
864 __entry
->dirty_ratelimit
,
865 __entry
->task_ratelimit
,
867 __entry
->dirtied_pause
,
868 __entry
->paused
, /* ms */
869 __entry
->pause
/* ms */
873 #endif /* #else #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
875 #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) */
877 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
878 LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue
,
880 TP_PROTO(struct inode
*inode
),
884 __array_text(char, name
, 32)
885 __field(unsigned long, ino
)
886 __field(unsigned long, state
)
887 __field(unsigned long, dirtied_when
)
891 tp_memcpy(name
, dev_name(inode_to_bdi(inode
)->dev
), 32)
892 tp_assign(ino
, inode
->i_ino
)
893 tp_assign(state
, inode
->i_state
)
894 tp_assign(dirtied_when
, inode
->dirtied_when
)
897 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu",
900 show_inode_state(__entry
->state
),
901 __entry
->dirtied_when
,
902 (jiffies
- __entry
->dirtied_when
) / HZ
907 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
908 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template
,
910 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
912 TP_ARGS(usec_timeout
, usec_delayed
),
915 __field( unsigned int, usec_timeout
)
916 __field( unsigned int, usec_delayed
)
920 tp_assign(usec_timeout
, usec_timeout
)
921 tp_assign(usec_delayed
, usec_delayed
)
924 TP_printk("usec_timeout=%u usec_delayed=%u",
925 __entry
->usec_timeout
,
926 __entry
->usec_delayed
)
929 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_congestion_wait
,
931 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
933 TP_ARGS(usec_timeout
, usec_delayed
)
936 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_wait_iff_congested
,
938 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
940 TP_ARGS(usec_timeout
, usec_delayed
)
944 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
945 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template
,
947 TP_PROTO(struct inode
*inode
,
948 struct writeback_control
*wbc
,
949 unsigned long nr_to_write
952 TP_ARGS(inode
, wbc
, nr_to_write
),
955 __array_text(char, name
, 32)
956 __field(unsigned long, ino
)
957 __field(unsigned long, state
)
958 __field(unsigned long, dirtied_when
)
959 __field(unsigned long, writeback_index
)
960 __field(long, nr_to_write
)
961 __field(unsigned long, wrote
)
965 tp_memcpy(name
, dev_name(inode_to_bdi(inode
)->dev
), 32)
966 tp_assign(ino
, inode
->i_ino
)
967 tp_assign(state
, inode
->i_state
)
968 tp_assign(dirtied_when
, inode
->dirtied_when
)
969 tp_assign(writeback_index
, inode
->i_mapping
->writeback_index
)
970 tp_assign(nr_to_write
, nr_to_write
)
971 tp_assign(wrote
, nr_to_write
- wbc
->nr_to_write
)
974 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
975 "index=%lu to_write=%ld wrote=%lu",
978 show_inode_state(__entry
->state
),
979 __entry
->dirtied_when
,
980 (jiffies
- __entry
->dirtied_when
) / HZ
,
981 __entry
->writeback_index
,
982 __entry
->nr_to_write
,
987 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
988 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode_requeue
,
989 TP_PROTO(struct inode
*inode
,
990 struct writeback_control
*wbc
,
991 unsigned long nr_to_write
),
992 TP_ARGS(inode
, wbc
, nr_to_write
)
996 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode
,
997 TP_PROTO(struct inode
*inode
,
998 struct writeback_control
*wbc
,
999 unsigned long nr_to_write
),
1000 TP_ARGS(inode
, wbc
, nr_to_write
)
1004 #endif /* LTTNG_TRACE_WRITEBACK_H */
1006 /* This part must be outside protection */
1007 #include "../../../probes/define_trace.h"