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_
17 * Vanilla kernels before 4.0 do not implement inode_to_bdi
18 * RHEL kernels before 3.10.0-327.10.1 do not implement inode_to_bdi
19 * RHEL kernel 3.10.0-327.10.1 has inode_to_bdi
20 * RHEL kernel 3.10.0-327.13.1 includes a partial merge of upstream
21 * commit a212b105b07d75b48b1a166378282e8a77fbf53d which inlines
22 * inode_to_bdi but not sb_is_blkdev_sb making it unusable by modules.
24 #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0))
25 static inline struct backing_dev_info
*lttng_inode_to_bdi(struct inode
*inode
)
27 struct super_block
*sb
;
30 return &noop_backing_dev_info
;
34 if (strcmp(sb
->s_type
->name
, "bdev") == 0)
35 return inode
->i_mapping
->backing_dev_info
;
40 static inline struct backing_dev_info
*lttng_inode_to_bdi(struct inode
*inode
)
42 return inode_to_bdi(inode
);
44 #endif /* #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0)) */
48 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
49 #define show_inode_state(state) \
50 __print_flags(state, "|", \
51 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
52 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
53 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
55 {I_WILL_FREE, "I_WILL_FREE"}, \
56 {I_FREEING, "I_FREEING"}, \
57 {I_CLEAR, "I_CLEAR"}, \
59 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
60 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
61 {I_REFERENCED, "I_REFERENCED"} \
63 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
64 #define show_inode_state(state) \
65 __print_flags(state, "|", \
66 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
67 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
68 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
70 {I_WILL_FREE, "I_WILL_FREE"}, \
71 {I_FREEING, "I_FREEING"}, \
72 {I_CLEAR, "I_CLEAR"}, \
74 {I_REFERENCED, "I_REFERENCED"} \
76 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
78 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
80 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page
,
81 TP_PROTO(struct page
*page
, struct address_space
*mapping
),
82 TP_ARGS(page
, mapping
),
84 ctf_array_text(char, name
,
85 mapping
? dev_name(lttng_inode_to_bdi(mapping
->host
)->dev
) : "(unknown)", 32)
86 ctf_integer(unsigned long, ino
, mapping
? mapping
->host
->i_ino
: 0)
87 ctf_integer(pgoff_t
, index
, page
->index
)
91 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template
,
92 TP_PROTO(struct inode
*inode
, int flags
),
93 TP_ARGS(inode
, flags
),
95 /* may be called for files on pseudo FSes w/ unregistered bdi */
96 ctf_array_text(char, name
,
97 lttng_inode_to_bdi(inode
)->dev
?
98 dev_name(lttng_inode_to_bdi(inode
)->dev
) : "(unknown)", 32)
99 ctf_integer(unsigned long, ino
, inode
->i_ino
)
100 ctf_integer(unsigned long, state
, inode
->i_state
)
101 ctf_integer(unsigned long, flags
, flags
)
104 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
105 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
106 TP_PROTO(struct inode *inode, int flags), \
107 TP_ARGS(inode, flags))
108 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start
)
109 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode
)
110 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty
)
112 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template
,
113 TP_PROTO(struct inode
*inode
, struct writeback_control
*wbc
),
116 ctf_array_text(char, name
,
117 dev_name(lttng_inode_to_bdi(inode
)->dev
), 32)
118 ctf_integer(unsigned long, ino
, inode
->i_ino
)
119 ctf_integer(int, sync_mode
, wbc
->sync_mode
)
123 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
124 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
125 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
127 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start
)
128 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode
)
130 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
132 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page
,
133 TP_PROTO(struct page
*page
, struct address_space
*mapping
),
134 TP_ARGS(page
, mapping
),
136 ctf_array_text(char, name
,
137 mapping
? dev_name(mapping
->backing_dev_info
->dev
) : "(unknown)", 32)
138 ctf_integer(unsigned long, ino
, mapping
? mapping
->host
->i_ino
: 0)
139 ctf_integer(pgoff_t
, index
, page
->index
)
143 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template
,
144 TP_PROTO(struct inode
*inode
, int flags
),
145 TP_ARGS(inode
, flags
),
147 /* may be called for files on pseudo FSes w/ unregistered bdi */
148 ctf_array_text(char, name
,
149 inode
->i_mapping
->backing_dev_info
->dev
?
150 dev_name(inode
->i_mapping
->backing_dev_info
->dev
)
152 ctf_integer(unsigned long, ino
, inode
->i_ino
)
153 ctf_integer(unsigned long, flags
, flags
)
156 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
157 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
158 TP_PROTO(struct inode *inode, int flags), \
159 TP_ARGS(inode, flags))
160 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start
)
161 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode
)
163 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template
,
164 TP_PROTO(struct inode
*inode
, struct writeback_control
*wbc
),
167 ctf_array_text(char, name
,
168 dev_name(inode
->i_mapping
->backing_dev_info
->dev
), 32)
169 ctf_integer(unsigned long, ino
, inode
->i_ino
)
170 ctf_integer(int, sync_mode
, wbc
->sync_mode
)
174 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
175 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
176 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
178 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start
)
179 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode
)
181 #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */
183 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
185 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
186 TP_PROTO(struct bdi_writeback
*wb
, struct wb_writeback_work
*work
),
189 ctf_array_text(char, name
, wb
->bdi
->dev
? dev_name(wb
->bdi
->dev
) :
194 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
196 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
197 TP_PROTO(struct backing_dev_info
*bdi
, struct wb_writeback_work
*work
),
200 ctf_array_text(char, name
, bdi
->dev
? dev_name(bdi
->dev
) :
205 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
207 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
208 TP_PROTO(struct backing_dev_info
*bdi
, struct wb_writeback_work
*work
),
211 ctf_array_text(char, name
,
212 dev_name(bdi
->dev
? bdi
->dev
:
213 default_backing_dev_info
.dev
), 32)
217 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
219 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
221 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
222 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
223 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
226 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
228 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
229 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
230 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
233 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
235 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread
)
236 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue
)
237 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec
)
238 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
239 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start
)
240 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written
)
241 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait
)
244 LTTNG_TRACEPOINT_EVENT(writeback_pages_written
,
245 TP_PROTO(long pages_written
),
246 TP_ARGS(pages_written
),
248 ctf_integer(long, pages
, pages_written
)
252 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
254 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
255 TP_PROTO(struct bdi_writeback
*wb
),
258 ctf_array_text(char, name
,
259 dev_name(wb
->bdi
->dev
), 32)
263 #undef DEFINE_WRITEBACK_EVENT
264 #define DEFINE_WRITEBACK_EVENT(name) \
265 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
266 TP_PROTO(struct bdi_writeback *wb), \
269 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
270 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
271 TP_PROTO(struct bdi_writeback *wb), \
274 LTTNG_TRACEPOINT_EVENT(writeback_bdi_register
,
275 TP_PROTO(struct backing_dev_info
*bdi
),
278 ctf_array_text(char, name
,
279 dev_name(bdi
->dev
), 32)
283 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
285 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
286 TP_PROTO(struct backing_dev_info
*bdi
),
289 ctf_array_text(char, name
,
290 dev_name(bdi
->dev
), 32)
294 #undef DEFINE_WRITEBACK_EVENT
295 #define DEFINE_WRITEBACK_EVENT(name) \
296 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
297 TP_PROTO(struct backing_dev_info *bdi), \
300 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
301 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
302 TP_PROTO(struct backing_dev_info *bdi), \
305 DEFINE_WRITEBACK_EVENT(writeback_bdi_register
)
307 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
309 DEFINE_WRITEBACK_EVENT(writeback_nowork
)
310 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
311 DEFINE_WRITEBACK_EVENT(writeback_wake_background
)
313 DEFINE_WRITEBACK_EVENT(writeback_wake_thread
)
314 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread
)
315 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister
)
316 DEFINE_WRITEBACK_EVENT(writeback_thread_start
)
317 DEFINE_WRITEBACK_EVENT(writeback_thread_stop
)
318 #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
319 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start
, writeback_balance_dirty_start
)
320 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait
, writeback_balance_dirty_wait
)
322 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written
,
324 writeback_balance_dirty_written
,
326 TP_PROTO(struct backing_dev_info
*bdi
, int written
),
328 TP_ARGS(bdi
, written
),
331 ctf_array_text(char, name
, dev_name(bdi
->dev
), 32)
332 ctf_integer(int, written
, written
)
337 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class
,
338 TP_PROTO(struct writeback_control
*wbc
, struct backing_dev_info
*bdi
),
341 ctf_array_text(char, name
, dev_name(bdi
->dev
), 32)
342 ctf_integer(long, nr_to_write
, wbc
->nr_to_write
)
343 ctf_integer(long, pages_skipped
, wbc
->pages_skipped
)
344 ctf_integer(int, sync_mode
, wbc
->sync_mode
)
345 ctf_integer(int, for_kupdate
, wbc
->for_kupdate
)
346 ctf_integer(int, for_background
, wbc
->for_background
)
347 ctf_integer(int, for_reclaim
, wbc
->for_reclaim
)
348 ctf_integer(int, range_cyclic
, wbc
->range_cyclic
)
349 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
350 ctf_integer(int, more_io
, wbc
->more_io
)
351 ctf_integer(unsigned long, older_than_this
,
352 wbc
->older_than_this
? *wbc
->older_than_this
: 0)
354 ctf_integer(long, range_start
, (long) wbc
->range_start
)
355 ctf_integer(long, range_end
, (long) wbc
->range_end
)
359 #undef DEFINE_WBC_EVENT
360 #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
361 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
362 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
364 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
365 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start
, writeback_wbc_writeback_start
)
366 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written
, writeback_wbc_writeback_written
)
367 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait
, writeback_wbc_writeback_wait
)
368 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start
, writeback_wbc_balance_dirty_start
)
369 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written
, writeback_wbc_balance_dirty_written
)
370 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait
, writeback_wbc_balance_dirty_wait
)
372 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage
, writeback_wbc_writepage
)
374 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
375 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
376 TP_PROTO(struct bdi_writeback
*wb
,
377 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
378 struct wb_writeback_work
*work
,
380 unsigned long *older_than_this
,
383 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
384 TP_ARGS(wb
, work
, moved
),
386 TP_ARGS(wb
, older_than_this
, moved
),
389 ctf_array_text(char, name
, dev_name(wb
->bdi
->dev
), 32)
390 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
392 ctf_integer(unsigned long, older
,
393 older_than_this
? *older_than_this
: 0)
394 ctf_integer(long, age
,
396 (jiffies
- *older_than_this
) * 1000 / HZ
399 ctf_integer(int, moved
, moved
)
403 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0))
404 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
406 writeback_global_dirty_state
,
408 TP_PROTO(unsigned long background_thresh
,
409 unsigned long dirty_thresh
412 TP_ARGS(background_thresh
,
417 ctf_integer(unsigned long, nr_dirty
, global_node_page_state(NR_FILE_DIRTY
))
418 ctf_integer(unsigned long, nr_writeback
, global_node_page_state(NR_WRITEBACK
))
419 ctf_integer(unsigned long, nr_unstable
, global_node_page_state(NR_UNSTABLE_NFS
))
420 ctf_integer(unsigned long, nr_dirtied
, global_node_page_state(NR_DIRTIED
))
421 ctf_integer(unsigned long, nr_written
, global_node_page_state(NR_WRITTEN
))
422 ctf_integer(unsigned long, background_thresh
, background_thresh
)
423 ctf_integer(unsigned long, dirty_thresh
, dirty_thresh
)
424 ctf_integer(unsigned long, dirty_limit
, global_dirty_limit
)
428 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
430 writeback_global_dirty_state
,
432 TP_PROTO(unsigned long background_thresh
,
433 unsigned long dirty_thresh
436 TP_ARGS(background_thresh
,
441 ctf_integer(unsigned long, nr_dirty
, global_page_state(NR_FILE_DIRTY
))
442 ctf_integer(unsigned long, nr_writeback
, global_page_state(NR_WRITEBACK
))
443 ctf_integer(unsigned long, nr_unstable
, global_page_state(NR_UNSTABLE_NFS
))
444 ctf_integer(unsigned long, nr_dirtied
, global_page_state(NR_DIRTIED
))
445 ctf_integer(unsigned long, nr_written
, global_page_state(NR_WRITTEN
))
446 ctf_integer(unsigned long, background_thresh
, background_thresh
)
447 ctf_integer(unsigned long, dirty_thresh
, dirty_thresh
)
448 ctf_integer(unsigned long, dirty_limit
, global_dirty_limit
)
454 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
456 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
458 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
460 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
462 writeback_bdi_dirty_ratelimit
,
464 TP_PROTO(struct bdi_writeback
*wb
,
465 unsigned long dirty_rate
,
466 unsigned long task_ratelimit
),
468 TP_ARGS(wb
, dirty_rate
, task_ratelimit
),
471 ctf_array_text(char, bdi
, dev_name(wb
->bdi
->dev
), 32)
472 ctf_integer(unsigned long, write_bw
, KBps(wb
->bdi
->wb
.write_bandwidth
))
473 ctf_integer(unsigned long, avg_write_bw
, KBps(wb
->bdi
->wb
.avg_write_bandwidth
))
474 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
475 ctf_integer(unsigned long, dirty_ratelimit
, KBps(wb
->bdi
->wb
.dirty_ratelimit
))
476 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
477 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
478 KBps(wb
->bdi
->wb
.balanced_dirty_ratelimit
))
482 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
484 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
486 writeback_bdi_dirty_ratelimit
,
488 TP_PROTO(struct backing_dev_info
*bdi
,
489 unsigned long dirty_rate
,
490 unsigned long task_ratelimit
),
492 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
495 ctf_array_text(char, bdi
, dev_name(bdi
->dev
), 32)
496 ctf_integer(unsigned long, write_bw
, KBps(bdi
->wb
.write_bandwidth
))
497 ctf_integer(unsigned long, avg_write_bw
, KBps(bdi
->wb
.avg_write_bandwidth
))
498 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
499 ctf_integer(unsigned long, dirty_ratelimit
, KBps(bdi
->wb
.dirty_ratelimit
))
500 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
501 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
502 KBps(bdi
->wb
.balanced_dirty_ratelimit
))
506 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
508 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
510 writeback_bdi_dirty_ratelimit
,
512 TP_PROTO(struct backing_dev_info
*bdi
,
513 unsigned long dirty_rate
,
514 unsigned long task_ratelimit
),
516 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
519 ctf_array_text(char, bdi
, dev_name(bdi
->dev
), 32)
520 ctf_integer(unsigned long, write_bw
, KBps(bdi
->write_bandwidth
))
521 ctf_integer(unsigned long, avg_write_bw
, KBps(bdi
->avg_write_bandwidth
))
522 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
523 ctf_integer(unsigned long, dirty_ratelimit
, KBps(bdi
->dirty_ratelimit
))
524 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
525 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
526 KBps(bdi
->balanced_dirty_ratelimit
))
530 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
532 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
534 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
536 writeback_balance_dirty_pages
,
538 TP_PROTO(struct bdi_writeback
*wb
,
539 unsigned long thresh
,
540 unsigned long bg_thresh
,
542 unsigned long bdi_thresh
,
543 unsigned long bdi_dirty
,
544 unsigned long dirty_ratelimit
,
545 unsigned long task_ratelimit
,
546 unsigned long dirtied
,
547 unsigned long period
,
549 unsigned long start_time
),
551 TP_ARGS(wb
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
552 dirty_ratelimit
, task_ratelimit
,
553 dirtied
, period
, pause
, start_time
557 ctf_array_text(char, bdi
, dev_name(wb
->bdi
->dev
), 32)
558 ctf_integer(unsigned long, limit
, global_dirty_limit
)
559 ctf_integer(unsigned long, setpoint
,
560 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
561 ctf_integer(unsigned long, dirty
, dirty
)
562 ctf_integer(unsigned long, bdi_setpoint
,
563 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
564 bdi_thresh
/ (thresh
+ 1))
565 ctf_integer(unsigned long, bdi_dirty
, bdi_dirty
)
566 ctf_integer(unsigned long, dirty_ratelimit
,
567 KBps(dirty_ratelimit
))
568 ctf_integer(unsigned long, task_ratelimit
,
569 KBps(task_ratelimit
))
570 ctf_integer(unsigned int, dirtied
, dirtied
)
571 ctf_integer(unsigned int, dirtied_pause
,
572 current
->nr_dirtied_pause
)
573 ctf_integer(unsigned long, paused
,
574 (jiffies
- start_time
) * 1000 / HZ
)
575 ctf_integer(long, pause
, pause
* 1000 / HZ
)
576 ctf_integer(unsigned long, period
,
578 ctf_integer(long, think
,
579 current
->dirty_paused_when
== 0 ? 0 :
580 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
584 #else /* #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
586 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
588 writeback_balance_dirty_pages
,
590 TP_PROTO(struct backing_dev_info
*bdi
,
591 unsigned long thresh
,
592 unsigned long bg_thresh
,
594 unsigned long bdi_thresh
,
595 unsigned long bdi_dirty
,
596 unsigned long dirty_ratelimit
,
597 unsigned long task_ratelimit
,
598 unsigned long dirtied
,
599 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
600 unsigned long period
,
603 unsigned long start_time
),
605 TP_ARGS(bdi
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
606 dirty_ratelimit
, task_ratelimit
,
607 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
608 dirtied
, period
, pause
, start_time
610 dirtied
, pause
, start_time
615 ctf_array_text(char, bdi
, dev_name(bdi
->dev
), 32)
616 ctf_integer(unsigned long, limit
, global_dirty_limit
)
617 ctf_integer(unsigned long, setpoint
,
618 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
619 ctf_integer(unsigned long, dirty
, dirty
)
620 ctf_integer(unsigned long, bdi_setpoint
,
621 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
622 bdi_thresh
/ (thresh
+ 1))
623 ctf_integer(unsigned long, bdi_dirty
, bdi_dirty
)
624 ctf_integer(unsigned long, dirty_ratelimit
,
625 KBps(dirty_ratelimit
))
626 ctf_integer(unsigned long, task_ratelimit
,
627 KBps(task_ratelimit
))
628 ctf_integer(unsigned int, dirtied
, dirtied
)
629 ctf_integer(unsigned int, dirtied_pause
,
630 current
->nr_dirtied_pause
)
631 ctf_integer(unsigned long, paused
,
632 (jiffies
- start_time
) * 1000 / HZ
)
633 ctf_integer(long, pause
, pause
* 1000 / HZ
)
634 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
635 ctf_integer(unsigned long, period
,
637 ctf_integer(long, think
,
638 current
->dirty_paused_when
== 0 ? 0 :
639 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
643 #endif /* #else #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
645 #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) */
647 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
648 LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue
,
650 TP_PROTO(struct inode
*inode
),
654 ctf_array_text(char, name
,
655 dev_name(lttng_inode_to_bdi(inode
)->dev
), 32)
656 ctf_integer(unsigned long, ino
, inode
->i_ino
)
657 ctf_integer(unsigned long, state
, inode
->i_state
)
658 ctf_integer(unsigned long, dirtied_when
, inode
->dirtied_when
)
663 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
664 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template
,
666 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
668 TP_ARGS(usec_timeout
, usec_delayed
),
671 ctf_integer(unsigned int, usec_timeout
, usec_timeout
)
672 ctf_integer(unsigned int, usec_delayed
, usec_delayed
)
676 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_congestion_wait
,
678 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
680 TP_ARGS(usec_timeout
, usec_delayed
)
683 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_wait_iff_congested
,
685 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
687 TP_ARGS(usec_timeout
, usec_delayed
)
691 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
692 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template
,
694 TP_PROTO(struct inode
*inode
,
695 struct writeback_control
*wbc
,
696 unsigned long nr_to_write
699 TP_ARGS(inode
, wbc
, nr_to_write
),
702 ctf_array_text(char, name
,
703 dev_name(lttng_inode_to_bdi(inode
)->dev
), 32)
704 ctf_integer(unsigned long, ino
, inode
->i_ino
)
705 ctf_integer(unsigned long, state
, inode
->i_state
)
706 ctf_integer(unsigned long, dirtied_when
, inode
->dirtied_when
)
707 ctf_integer(unsigned long, writeback_index
,
708 inode
->i_mapping
->writeback_index
)
709 ctf_integer(long, nr_to_write
, nr_to_write
)
710 ctf_integer(unsigned long, wrote
,
711 nr_to_write
- wbc
->nr_to_write
)
715 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
716 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode_requeue
,
717 TP_PROTO(struct inode
*inode
,
718 struct writeback_control
*wbc
,
719 unsigned long nr_to_write
),
720 TP_ARGS(inode
, wbc
, nr_to_write
)
724 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode
,
725 TP_PROTO(struct inode
*inode
,
726 struct writeback_control
*wbc
,
727 unsigned long nr_to_write
),
728 TP_ARGS(inode
, wbc
, nr_to_write
)
732 #endif /* LTTNG_TRACE_WRITEBACK_H */
734 /* This part must be outside protection */
735 #include <probes/define_trace.h>