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(3,2,0))
61 #define WB_WORK_REASON \
62 {WB_REASON_BACKGROUND, "background"}, \
63 {WB_REASON_TRY_TO_FREE_PAGES, "try_to_free_pages"}, \
64 {WB_REASON_SYNC, "sync"}, \
65 {WB_REASON_PERIODIC, "periodic"}, \
66 {WB_REASON_LAPTOP_TIMER, "laptop_timer"}, \
67 {WB_REASON_FREE_MORE_MEM, "free_more_memory"}, \
68 {WB_REASON_FS_FREE_SPACE, "fs_free_space"}, \
69 {WB_REASON_FORKER_THREAD, "forker_thread"}
72 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
74 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page
,
75 TP_PROTO(struct page
*page
, struct address_space
*mapping
),
76 TP_ARGS(page
, mapping
),
78 __array_text(char, name
, 32)
79 __field(unsigned long, ino
)
80 __field(pgoff_t
, index
)
84 mapping
? dev_name(inode_to_bdi(mapping
->host
)->dev
) : "(unknown)", 32)
85 tp_assign(ino
, mapping
? mapping
->host
->i_ino
: 0)
86 tp_assign(index
, page
->index
)
88 TP_printk("bdi %s: ino=%lu index=%lu",
95 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template
,
96 TP_PROTO(struct inode
*inode
, int flags
),
97 TP_ARGS(inode
, flags
),
99 __array_text(char, name
, 32)
100 __field(unsigned long, ino
)
101 __field(unsigned long, state
)
102 __field(unsigned long, flags
)
105 /* may be called for files on pseudo FSes w/ unregistered bdi */
107 inode_to_bdi(inode
)->dev
?
108 dev_name(inode_to_bdi(inode
)->dev
) : "(unknown)", 32)
109 tp_assign(ino
, inode
->i_ino
)
110 tp_assign(state
, inode
->i_state
)
111 tp_assign(flags
, flags
)
113 TP_printk("bdi %s: ino=%lu flags=%s",
116 show_inode_state(__entry
->flags
)
119 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
120 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
121 TP_PROTO(struct inode *inode, int flags), \
122 TP_ARGS(inode, flags))
123 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start
)
124 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode
)
125 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty
)
127 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template
,
128 TP_PROTO(struct inode
*inode
, struct writeback_control
*wbc
),
131 __array_text(char, name
, 32)
132 __field(unsigned long, ino
)
133 __field(int, sync_mode
)
137 dev_name(inode_to_bdi(inode
)->dev
), 32)
138 tp_assign(ino
, inode
->i_ino
)
139 tp_assign(sync_mode
, wbc
->sync_mode
)
141 TP_printk("bdi %s: ino=%lu sync_mode=%d",
148 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
149 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
150 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
152 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start
)
153 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode
)
155 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
157 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page
,
158 TP_PROTO(struct page
*page
, struct address_space
*mapping
),
159 TP_ARGS(page
, mapping
),
161 __array_text(char, name
, 32)
162 __field(unsigned long, ino
)
163 __field(pgoff_t
, index
)
167 mapping
? dev_name(mapping
->backing_dev_info
->dev
) : "(unknown)", 32)
168 tp_assign(ino
, mapping
? mapping
->host
->i_ino
: 0)
169 tp_assign(index
, page
->index
)
171 TP_printk("bdi %s: ino=%lu index=%lu",
178 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template
,
179 TP_PROTO(struct inode
*inode
, int flags
),
180 TP_ARGS(inode
, flags
),
182 __array_text(char, name
, 32)
183 __field(unsigned long, ino
)
184 __field(unsigned long, flags
)
187 /* may be called for files on pseudo FSes w/ unregistered bdi */
189 inode
->i_mapping
->backing_dev_info
->dev
?
190 dev_name(inode
->i_mapping
->backing_dev_info
->dev
) : "(unknown)", 32)
191 tp_assign(ino
, inode
->i_ino
)
192 tp_assign(flags
, flags
)
194 TP_printk("bdi %s: ino=%lu flags=%s",
197 show_inode_state(__entry
->flags
)
200 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
201 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
202 TP_PROTO(struct inode *inode, int flags), \
203 TP_ARGS(inode, flags))
204 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start
)
205 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode
)
207 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template
,
208 TP_PROTO(struct inode
*inode
, struct writeback_control
*wbc
),
211 __array_text(char, name
, 32)
212 __field(unsigned long, ino
)
213 __field(int, sync_mode
)
217 dev_name(inode
->i_mapping
->backing_dev_info
->dev
), 32)
218 tp_assign(ino
, inode
->i_ino
)
219 tp_assign(sync_mode
, wbc
->sync_mode
)
221 TP_printk("bdi %s: ino=%lu sync_mode=%d",
228 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
229 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
230 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
232 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start
)
233 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode
)
235 #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */
237 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
239 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
240 TP_PROTO(struct backing_dev_info
*bdi
, struct wb_writeback_work
*work
),
243 __array_text(char, name
, 32)
246 tp_memcpy(name
, bdi
->dev
? dev_name(bdi
->dev
) :
254 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
256 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
257 TP_PROTO(struct backing_dev_info
*bdi
, struct wb_writeback_work
*work
),
260 __array_text(char, name
, 32)
263 tp_memcpy(name
, dev_name(bdi
->dev
? bdi
->dev
:
264 default_backing_dev_info
.dev
), 32)
271 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
273 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
274 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
275 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
277 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread
)
278 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue
)
279 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec
)
280 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
281 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start
)
282 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written
)
283 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait
)
286 LTTNG_TRACEPOINT_EVENT(writeback_pages_written
,
287 TP_PROTO(long pages_written
),
288 TP_ARGS(pages_written
),
293 tp_assign(pages
, pages_written
)
295 TP_printk("%ld", __entry
->pages
)
298 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
299 TP_PROTO(struct backing_dev_info
*bdi
),
302 __array_text(char, name
, 32)
305 tp_memcpy(name
, dev_name(bdi
->dev
), 32)
311 #undef DEFINE_WRITEBACK_EVENT
312 #define DEFINE_WRITEBACK_EVENT(name) \
313 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
314 TP_PROTO(struct backing_dev_info *bdi), \
317 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
318 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
319 TP_PROTO(struct backing_dev_info *bdi), \
322 DEFINE_WRITEBACK_EVENT(writeback_nowork
)
323 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
324 DEFINE_WRITEBACK_EVENT(writeback_wake_background
)
326 DEFINE_WRITEBACK_EVENT(writeback_wake_thread
)
327 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread
)
328 DEFINE_WRITEBACK_EVENT(writeback_bdi_register
)
329 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister
)
330 DEFINE_WRITEBACK_EVENT(writeback_thread_start
)
331 DEFINE_WRITEBACK_EVENT(writeback_thread_stop
)
332 #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
333 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start
, writeback_balance_dirty_start
)
334 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait
, writeback_balance_dirty_wait
)
336 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written
,
338 writeback_balance_dirty_written
,
340 TP_PROTO(struct backing_dev_info
*bdi
, int written
),
342 TP_ARGS(bdi
, written
),
345 __array(char, name
, 32)
346 __field(int, written
)
350 tp_memcpy(name
, dev_name(bdi
->dev
), 32)
351 tp_assign(written
, written
)
354 TP_printk("bdi %s written %d",
361 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class
,
362 TP_PROTO(struct writeback_control
*wbc
, struct backing_dev_info
*bdi
),
365 __array_text(char, name
, 32)
366 __field(long, nr_to_write
)
367 __field(long, pages_skipped
)
368 __field(int, sync_mode
)
369 __field(int, for_kupdate
)
370 __field(int, for_background
)
371 __field(int, for_reclaim
)
372 __field(int, range_cyclic
)
373 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
374 __field(int, more_io
)
375 __field(unsigned long, older_than_this
)
377 __field(long, range_start
)
378 __field(long, range_end
)
382 tp_memcpy(name
, dev_name(bdi
->dev
), 32)
383 tp_assign(nr_to_write
, wbc
->nr_to_write
)
384 tp_assign(pages_skipped
, wbc
->pages_skipped
)
385 tp_assign(sync_mode
, wbc
->sync_mode
)
386 tp_assign(for_kupdate
, wbc
->for_kupdate
)
387 tp_assign(for_background
, wbc
->for_background
)
388 tp_assign(for_reclaim
, wbc
->for_reclaim
)
389 tp_assign(range_cyclic
, wbc
->range_cyclic
)
390 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
391 tp_assign(more_io
, wbc
->more_io
)
392 tp_assign(older_than_this
, wbc
->older_than_this
?
393 *wbc
->older_than_this
: 0)
395 tp_assign(range_start
, (long)wbc
->range_start
)
396 tp_assign(range_end
, (long)wbc
->range_end
)
399 TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
400 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
401 "bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx "
403 "bgrd=%d reclm=%d cyclic=%d "
405 "start=0x%lx end=0x%lx",
407 __entry
->nr_to_write
,
408 __entry
->pages_skipped
,
410 __entry
->for_kupdate
,
411 __entry
->for_background
,
412 __entry
->for_reclaim
,
413 __entry
->range_cyclic
,
414 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
416 __entry
->older_than_this
,
418 __entry
->range_start
,
422 #undef DEFINE_WBC_EVENT
423 #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
424 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
425 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
427 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
428 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start
, writeback_wbc_writeback_start
)
429 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written
, writeback_wbc_writeback_written
)
430 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait
, writeback_wbc_writeback_wait
)
431 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start
, writeback_wbc_balance_dirty_start
)
432 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written
, writeback_wbc_balance_dirty_written
)
433 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait
, writeback_wbc_balance_dirty_wait
)
435 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage
, writeback_wbc_writepage
)
437 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
438 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
439 TP_PROTO(struct bdi_writeback
*wb
,
440 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
441 struct wb_writeback_work
*work
,
443 unsigned long *older_than_this
,
446 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
447 TP_ARGS(wb
, work
, moved
),
449 TP_ARGS(wb
, older_than_this
, moved
),
452 __array(char, name
, 32)
453 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
455 __field(unsigned long, older
)
461 tp_memcpy(name
, dev_name(wb
->bdi
->dev
), 32)
462 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
464 tp_assign(older
, older_than_this
? *older_than_this
: 0)
465 tp_assign(age
, older_than_this
?
466 (jiffies
- *older_than_this
) * 1000 / HZ
: -1)
468 tp_assign(moved
, moved
)
470 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
471 TP_printk("bdi %s: enqueue=%d",
476 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d",
478 __entry
->older
, /* older_than_this in jiffies */
479 __entry
->age
, /* older_than_this in relative milliseconds */
485 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
487 writeback_global_dirty_state
,
489 TP_PROTO(unsigned long background_thresh
,
490 unsigned long dirty_thresh
493 TP_ARGS(background_thresh
,
498 __field(unsigned long, nr_dirty
)
499 __field(unsigned long, nr_writeback
)
500 __field(unsigned long, nr_unstable
)
501 __field(unsigned long, background_thresh
)
502 __field(unsigned long, dirty_thresh
)
503 __field(unsigned long, dirty_limit
)
504 __field(unsigned long, nr_dirtied
)
505 __field(unsigned long, nr_written
)
509 tp_assign(nr_dirty
, global_page_state(NR_FILE_DIRTY
))
510 tp_assign(nr_writeback
, global_page_state(NR_WRITEBACK
))
511 tp_assign(nr_unstable
, global_page_state(NR_UNSTABLE_NFS
))
512 tp_assign(nr_dirtied
, global_page_state(NR_DIRTIED
))
513 tp_assign(nr_written
, global_page_state(NR_WRITTEN
))
514 tp_assign(background_thresh
, background_thresh
)
515 tp_assign(dirty_thresh
, dirty_thresh
)
516 tp_assign(dirty_limit
, global_dirty_limit
)
519 TP_printk("dirty=%lu writeback=%lu unstable=%lu "
520 "bg_thresh=%lu thresh=%lu limit=%lu "
521 "dirtied=%lu written=%lu",
523 __entry
->nr_writeback
,
524 __entry
->nr_unstable
,
525 __entry
->background_thresh
,
526 __entry
->dirty_thresh
,
527 __entry
->dirty_limit
,
534 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
536 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
538 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
540 writeback_bdi_dirty_ratelimit
,
542 TP_PROTO(struct backing_dev_info
*bdi
,
543 unsigned long dirty_rate
,
544 unsigned long task_ratelimit
),
546 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
549 __array(char, bdi
, 32)
550 __field(unsigned long, write_bw
)
551 __field(unsigned long, avg_write_bw
)
552 __field(unsigned long, dirty_rate
)
553 __field(unsigned long, dirty_ratelimit
)
554 __field(unsigned long, task_ratelimit
)
555 __field(unsigned long, balanced_dirty_ratelimit
)
559 tp_memcpy(bdi
, dev_name(bdi
->dev
), 32)
560 tp_assign(write_bw
, KBps(bdi
->write_bandwidth
))
561 tp_assign(avg_write_bw
, KBps(bdi
->avg_write_bandwidth
))
562 tp_assign(dirty_rate
, KBps(dirty_rate
))
563 tp_assign(dirty_ratelimit
, KBps(bdi
->dirty_ratelimit
))
564 tp_assign(task_ratelimit
, KBps(task_ratelimit
))
565 tp_assign(balanced_dirty_ratelimit
,
566 KBps(bdi
->balanced_dirty_ratelimit
))
570 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
571 "dirty_ratelimit=%lu task_ratelimit=%lu "
572 "balanced_dirty_ratelimit=%lu",
574 __entry
->write_bw
, /* write bandwidth */
575 __entry
->avg_write_bw
, /* avg write bandwidth */
576 __entry
->dirty_rate
, /* bdi dirty rate */
577 __entry
->dirty_ratelimit
, /* base ratelimit */
578 __entry
->task_ratelimit
, /* ratelimit with position control */
579 __entry
->balanced_dirty_ratelimit
/* the balanced ratelimit */
583 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
585 writeback_balance_dirty_pages
,
587 TP_PROTO(struct backing_dev_info
*bdi
,
588 unsigned long thresh
,
589 unsigned long bg_thresh
,
591 unsigned long bdi_thresh
,
592 unsigned long bdi_dirty
,
593 unsigned long dirty_ratelimit
,
594 unsigned long task_ratelimit
,
595 unsigned long dirtied
,
596 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
597 unsigned long period
,
600 unsigned long start_time
),
602 TP_ARGS(bdi
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
603 dirty_ratelimit
, task_ratelimit
,
604 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
605 dirtied
, period
, pause
, start_time
),
607 dirtied
, pause
, start_time
),
610 __array( char, bdi
, 32)
611 __field(unsigned long, limit
)
612 __field(unsigned long, setpoint
)
613 __field(unsigned long, dirty
)
614 __field(unsigned long, bdi_setpoint
)
615 __field(unsigned long, bdi_dirty
)
616 __field(unsigned long, dirty_ratelimit
)
617 __field(unsigned long, task_ratelimit
)
618 __field(unsigned int, dirtied
)
619 __field(unsigned int, dirtied_pause
)
620 __field(unsigned long, paused
)
621 __field( long, pause
)
622 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
623 __field(unsigned long, period
)
624 __field( long, think
)
629 tp_memcpy(bdi
, dev_name(bdi
->dev
), 32)
630 tp_assign(limit
, global_dirty_limit
)
632 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
633 tp_assign(dirty
, dirty
)
634 tp_assign(bdi_setpoint
,
635 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
636 bdi_thresh
/ (thresh
+ 1))
637 tp_assign(bdi_dirty
, bdi_dirty
)
638 tp_assign(dirty_ratelimit
, KBps(dirty_ratelimit
))
639 tp_assign(task_ratelimit
, KBps(task_ratelimit
))
640 tp_assign(dirtied
, dirtied
)
641 tp_assign(dirtied_pause
, current
->nr_dirtied_pause
)
642 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
643 tp_assign(think
, current
->dirty_paused_when
== 0 ? 0 :
644 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
645 tp_assign(period
, period
* 1000 / HZ
)
647 tp_assign(pause
, pause
* 1000 / HZ
)
648 tp_assign(paused
, (jiffies
- start_time
) * 1000 / HZ
)
652 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
654 "limit=%lu setpoint=%lu dirty=%lu "
655 "bdi_setpoint=%lu bdi_dirty=%lu "
656 "dirty_ratelimit=%lu task_ratelimit=%lu "
657 "dirtied=%u dirtied_pause=%u "
658 "paused=%lu pause=%ld period=%lu think=%ld",
663 __entry
->bdi_setpoint
,
665 __entry
->dirty_ratelimit
,
666 __entry
->task_ratelimit
,
668 __entry
->dirtied_pause
,
669 __entry
->paused
, /* ms */
670 __entry
->pause
, /* ms */
671 __entry
->period
, /* ms */
672 __entry
->think
/* ms */
676 "limit=%lu setpoint=%lu dirty=%lu "
677 "bdi_setpoint=%lu bdi_dirty=%lu "
678 "dirty_ratelimit=%lu task_ratelimit=%lu "
679 "dirtied=%u dirtied_pause=%u "
680 "paused=%lu pause=%ld",
685 __entry
->bdi_setpoint
,
687 __entry
->dirty_ratelimit
,
688 __entry
->task_ratelimit
,
690 __entry
->dirtied_pause
,
691 __entry
->paused
, /* ms */
692 __entry
->pause
/* ms */
698 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
699 LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue
,
701 TP_PROTO(struct inode
*inode
),
705 __array_text(char, name
, 32)
706 __field(unsigned long, ino
)
707 __field(unsigned long, state
)
708 __field(unsigned long, dirtied_when
)
712 tp_memcpy(name
, dev_name(inode_to_bdi(inode
)->dev
), 32)
713 tp_assign(ino
, inode
->i_ino
)
714 tp_assign(state
, inode
->i_state
)
715 tp_assign(dirtied_when
, inode
->dirtied_when
)
718 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu",
721 show_inode_state(__entry
->state
),
722 __entry
->dirtied_when
,
723 (jiffies
- __entry
->dirtied_when
) / HZ
728 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
729 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template
,
731 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
733 TP_ARGS(usec_timeout
, usec_delayed
),
736 __field( unsigned int, usec_timeout
)
737 __field( unsigned int, usec_delayed
)
741 tp_assign(usec_timeout
, usec_timeout
)
742 tp_assign(usec_delayed
, usec_delayed
)
745 TP_printk("usec_timeout=%u usec_delayed=%u",
746 __entry
->usec_timeout
,
747 __entry
->usec_delayed
)
750 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_congestion_wait
,
752 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
754 TP_ARGS(usec_timeout
, usec_delayed
)
757 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_wait_iff_congested
,
759 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
761 TP_ARGS(usec_timeout
, usec_delayed
)
765 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
766 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template
,
768 TP_PROTO(struct inode
*inode
,
769 struct writeback_control
*wbc
,
770 unsigned long nr_to_write
773 TP_ARGS(inode
, wbc
, nr_to_write
),
776 __array_text(char, name
, 32)
777 __field(unsigned long, ino
)
778 __field(unsigned long, state
)
779 __field(unsigned long, dirtied_when
)
780 __field(unsigned long, writeback_index
)
781 __field(long, nr_to_write
)
782 __field(unsigned long, wrote
)
786 tp_memcpy(name
, dev_name(inode_to_bdi(inode
)->dev
), 32)
787 tp_assign(ino
, inode
->i_ino
)
788 tp_assign(state
, inode
->i_state
)
789 tp_assign(dirtied_when
, inode
->dirtied_when
)
790 tp_assign(writeback_index
, inode
->i_mapping
->writeback_index
)
791 tp_assign(nr_to_write
, nr_to_write
)
792 tp_assign(wrote
, nr_to_write
- wbc
->nr_to_write
)
795 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
796 "index=%lu to_write=%ld wrote=%lu",
799 show_inode_state(__entry
->state
),
800 __entry
->dirtied_when
,
801 (jiffies
- __entry
->dirtied_when
) / HZ
,
802 __entry
->writeback_index
,
803 __entry
->nr_to_write
,
808 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
809 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode_requeue
,
810 TP_PROTO(struct inode
*inode
,
811 struct writeback_control
*wbc
,
812 unsigned long nr_to_write
),
813 TP_ARGS(inode
, wbc
, nr_to_write
)
817 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode
,
818 TP_PROTO(struct inode
*inode
,
819 struct writeback_control
*wbc
,
820 unsigned long nr_to_write
),
821 TP_ARGS(inode
, wbc
, nr_to_write
)
825 #endif /* LTTNG_TRACE_WRITEBACK_H */
827 /* This part must be outside protection */
828 #include "../../../probes/define_trace.h"