1 /* SPDX-License-Identifier: GPL-2.0 */
3 #define TRACE_SYSTEM writeback
5 #if !defined(LTTNG_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
6 #define LTTNG_TRACE_WRITEBACK_H
8 #include <probes/lttng-tracepoint-event.h>
9 #include <linux/tracepoint.h>
10 #include <linux/backing-dev.h>
11 #include <linux/writeback.h>
12 #include <linux/version.h>
14 #ifndef _TRACE_WRITEBACK_DEF_
15 #define _TRACE_WRITEBACK_DEF_
18 * Vanilla kernels before 4.0 do not implement inode_to_bdi
19 * RHEL kernels before 3.10.0-327.10.1 do not implement inode_to_bdi
20 * RHEL kernel 3.10.0-327.10.1 has inode_to_bdi
21 * RHEL kernel 3.10.0-327.13.1 includes a partial merge of upstream
22 * commit a212b105b07d75b48b1a166378282e8a77fbf53d which inlines
23 * inode_to_bdi but not sb_is_blkdev_sb making it unusable by modules.
25 #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0))
26 static inline struct backing_dev_info
*lttng_inode_to_bdi(struct inode
*inode
)
28 struct super_block
*sb
;
31 return &noop_backing_dev_info
;
35 if (strcmp(sb
->s_type
->name
, "bdev") == 0)
36 return inode
->i_mapping
->backing_dev_info
;
41 static inline struct backing_dev_info
*lttng_inode_to_bdi(struct inode
*inode
)
43 return inode_to_bdi(inode
);
45 #endif /* #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0)) */
49 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
50 #define show_inode_state(state) \
51 __print_flags(state, "|", \
52 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
53 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
54 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
56 {I_WILL_FREE, "I_WILL_FREE"}, \
57 {I_FREEING, "I_FREEING"}, \
58 {I_CLEAR, "I_CLEAR"}, \
60 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
61 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
62 {I_REFERENCED, "I_REFERENCED"} \
64 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
65 #define show_inode_state(state) \
66 __print_flags(state, "|", \
67 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
68 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
69 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
71 {I_WILL_FREE, "I_WILL_FREE"}, \
72 {I_FREEING, "I_FREEING"}, \
73 {I_CLEAR, "I_CLEAR"}, \
75 {I_REFERENCED, "I_REFERENCED"} \
77 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
79 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
81 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page
,
82 TP_PROTO(struct page
*page
, struct address_space
*mapping
),
83 TP_ARGS(page
, mapping
),
85 ctf_array_text(char, name
,
86 mapping
? dev_name(lttng_inode_to_bdi(mapping
->host
)->dev
) : "(unknown)", 32)
87 ctf_integer(unsigned long, ino
, mapping
? mapping
->host
->i_ino
: 0)
88 ctf_integer(pgoff_t
, index
, page
->index
)
92 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template
,
93 TP_PROTO(struct inode
*inode
, int flags
),
94 TP_ARGS(inode
, flags
),
96 /* may be called for files on pseudo FSes w/ unregistered bdi */
97 ctf_array_text(char, name
,
98 lttng_inode_to_bdi(inode
)->dev
?
99 dev_name(lttng_inode_to_bdi(inode
)->dev
) : "(unknown)", 32)
100 ctf_integer(unsigned long, ino
, inode
->i_ino
)
101 ctf_integer(unsigned long, state
, inode
->i_state
)
102 ctf_integer(unsigned long, flags
, flags
)
105 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
106 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
107 TP_PROTO(struct inode *inode, int flags), \
108 TP_ARGS(inode, flags))
109 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start
)
110 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode
)
111 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty
)
113 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template
,
114 TP_PROTO(struct inode
*inode
, struct writeback_control
*wbc
),
117 ctf_array_text(char, name
,
118 dev_name(lttng_inode_to_bdi(inode
)->dev
), 32)
119 ctf_integer(unsigned long, ino
, inode
->i_ino
)
120 ctf_integer(int, sync_mode
, wbc
->sync_mode
)
124 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
125 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
126 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
128 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start
)
129 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode
)
131 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
133 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page
,
134 TP_PROTO(struct page
*page
, struct address_space
*mapping
),
135 TP_ARGS(page
, mapping
),
137 ctf_array_text(char, name
,
138 mapping
? dev_name(mapping
->backing_dev_info
->dev
) : "(unknown)", 32)
139 ctf_integer(unsigned long, ino
, mapping
? mapping
->host
->i_ino
: 0)
140 ctf_integer(pgoff_t
, index
, page
->index
)
144 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template
,
145 TP_PROTO(struct inode
*inode
, int flags
),
146 TP_ARGS(inode
, flags
),
148 /* may be called for files on pseudo FSes w/ unregistered bdi */
149 ctf_array_text(char, name
,
150 inode
->i_mapping
->backing_dev_info
->dev
?
151 dev_name(inode
->i_mapping
->backing_dev_info
->dev
)
153 ctf_integer(unsigned long, ino
, inode
->i_ino
)
154 ctf_integer(unsigned long, flags
, flags
)
157 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
158 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
159 TP_PROTO(struct inode *inode, int flags), \
160 TP_ARGS(inode, flags))
161 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start
)
162 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode
)
164 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template
,
165 TP_PROTO(struct inode
*inode
, struct writeback_control
*wbc
),
168 ctf_array_text(char, name
,
169 dev_name(inode
->i_mapping
->backing_dev_info
->dev
), 32)
170 ctf_integer(unsigned long, ino
, inode
->i_ino
)
171 ctf_integer(int, sync_mode
, wbc
->sync_mode
)
175 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
176 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
177 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
179 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start
)
180 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode
)
182 #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */
184 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
186 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
187 TP_PROTO(struct bdi_writeback
*wb
, struct wb_writeback_work
*work
),
190 ctf_array_text(char, name
, wb
->bdi
->dev
? dev_name(wb
->bdi
->dev
) :
195 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
197 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
198 TP_PROTO(struct backing_dev_info
*bdi
, struct wb_writeback_work
*work
),
201 ctf_array_text(char, name
, bdi
->dev
? dev_name(bdi
->dev
) :
206 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
208 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
209 TP_PROTO(struct backing_dev_info
*bdi
, struct wb_writeback_work
*work
),
212 ctf_array_text(char, name
,
213 dev_name(bdi
->dev
? bdi
->dev
:
214 default_backing_dev_info
.dev
), 32)
218 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
220 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
222 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
223 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
224 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
227 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
229 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
230 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
231 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
234 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
236 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread
)
237 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue
)
238 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec
)
239 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
240 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start
)
241 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written
)
242 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait
)
245 LTTNG_TRACEPOINT_EVENT(writeback_pages_written
,
246 TP_PROTO(long pages_written
),
247 TP_ARGS(pages_written
),
249 ctf_integer(long, pages
, pages_written
)
253 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
255 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
256 TP_PROTO(struct bdi_writeback
*wb
),
259 ctf_array_text(char, name
,
260 dev_name(wb
->bdi
->dev
), 32)
264 #undef DEFINE_WRITEBACK_EVENT
265 #define DEFINE_WRITEBACK_EVENT(name) \
266 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
267 TP_PROTO(struct bdi_writeback *wb), \
270 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
271 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
272 TP_PROTO(struct bdi_writeback *wb), \
275 LTTNG_TRACEPOINT_EVENT(writeback_bdi_register
,
276 TP_PROTO(struct backing_dev_info
*bdi
),
279 ctf_array_text(char, name
,
280 dev_name(bdi
->dev
), 32)
284 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
286 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
287 TP_PROTO(struct backing_dev_info
*bdi
),
290 ctf_array_text(char, name
,
291 dev_name(bdi
->dev
), 32)
295 #undef DEFINE_WRITEBACK_EVENT
296 #define DEFINE_WRITEBACK_EVENT(name) \
297 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
298 TP_PROTO(struct backing_dev_info *bdi), \
301 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
302 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
303 TP_PROTO(struct backing_dev_info *bdi), \
306 DEFINE_WRITEBACK_EVENT(writeback_bdi_register
)
308 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
310 DEFINE_WRITEBACK_EVENT(writeback_nowork
)
311 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
312 DEFINE_WRITEBACK_EVENT(writeback_wake_background
)
314 DEFINE_WRITEBACK_EVENT(writeback_wake_thread
)
315 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread
)
316 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister
)
317 DEFINE_WRITEBACK_EVENT(writeback_thread_start
)
318 DEFINE_WRITEBACK_EVENT(writeback_thread_stop
)
319 #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
320 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start
, writeback_balance_dirty_start
)
321 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait
, writeback_balance_dirty_wait
)
323 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written
,
325 writeback_balance_dirty_written
,
327 TP_PROTO(struct backing_dev_info
*bdi
, int written
),
329 TP_ARGS(bdi
, written
),
332 ctf_array_text(char, name
, dev_name(bdi
->dev
), 32)
333 ctf_integer(int, written
, written
)
338 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class
,
339 TP_PROTO(struct writeback_control
*wbc
, struct backing_dev_info
*bdi
),
342 ctf_array_text(char, name
, dev_name(bdi
->dev
), 32)
343 ctf_integer(long, nr_to_write
, wbc
->nr_to_write
)
344 ctf_integer(long, pages_skipped
, wbc
->pages_skipped
)
345 ctf_integer(int, sync_mode
, wbc
->sync_mode
)
346 ctf_integer(int, for_kupdate
, wbc
->for_kupdate
)
347 ctf_integer(int, for_background
, wbc
->for_background
)
348 ctf_integer(int, for_reclaim
, wbc
->for_reclaim
)
349 ctf_integer(int, range_cyclic
, wbc
->range_cyclic
)
350 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
351 ctf_integer(int, more_io
, wbc
->more_io
)
352 ctf_integer(unsigned long, older_than_this
,
353 wbc
->older_than_this
? *wbc
->older_than_this
: 0)
355 ctf_integer(long, range_start
, (long) wbc
->range_start
)
356 ctf_integer(long, range_end
, (long) wbc
->range_end
)
360 #undef DEFINE_WBC_EVENT
361 #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
362 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
363 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
365 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
366 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start
, writeback_wbc_writeback_start
)
367 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written
, writeback_wbc_writeback_written
)
368 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait
, writeback_wbc_writeback_wait
)
369 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start
, writeback_wbc_balance_dirty_start
)
370 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written
, writeback_wbc_balance_dirty_written
)
371 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait
, writeback_wbc_balance_dirty_wait
)
373 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage
, writeback_wbc_writepage
)
375 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
376 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
377 TP_PROTO(struct bdi_writeback
*wb
,
378 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
379 struct wb_writeback_work
*work
,
381 unsigned long *older_than_this
,
384 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
385 TP_ARGS(wb
, work
, moved
),
387 TP_ARGS(wb
, older_than_this
, moved
),
390 ctf_array_text(char, name
, dev_name(wb
->bdi
->dev
), 32)
391 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
393 ctf_integer(unsigned long, older
,
394 older_than_this
? *older_than_this
: 0)
395 ctf_integer(long, age
,
397 (jiffies
- *older_than_this
) * 1000 / HZ
400 ctf_integer(int, moved
, moved
)
404 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0))
405 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
407 writeback_global_dirty_state
,
409 TP_PROTO(unsigned long background_thresh
,
410 unsigned long dirty_thresh
413 TP_ARGS(background_thresh
,
418 ctf_integer(unsigned long, nr_dirty
, global_node_page_state(NR_FILE_DIRTY
))
419 ctf_integer(unsigned long, nr_writeback
, global_node_page_state(NR_WRITEBACK
))
420 ctf_integer(unsigned long, nr_unstable
, global_node_page_state(NR_UNSTABLE_NFS
))
421 ctf_integer(unsigned long, nr_dirtied
, global_node_page_state(NR_DIRTIED
))
422 ctf_integer(unsigned long, nr_written
, global_node_page_state(NR_WRITTEN
))
423 ctf_integer(unsigned long, background_thresh
, background_thresh
)
424 ctf_integer(unsigned long, dirty_thresh
, dirty_thresh
)
425 ctf_integer(unsigned long, dirty_limit
, global_dirty_limit
)
429 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
431 writeback_global_dirty_state
,
433 TP_PROTO(unsigned long background_thresh
,
434 unsigned long dirty_thresh
437 TP_ARGS(background_thresh
,
442 ctf_integer(unsigned long, nr_dirty
, global_page_state(NR_FILE_DIRTY
))
443 ctf_integer(unsigned long, nr_writeback
, global_page_state(NR_WRITEBACK
))
444 ctf_integer(unsigned long, nr_unstable
, global_page_state(NR_UNSTABLE_NFS
))
445 ctf_integer(unsigned long, nr_dirtied
, global_page_state(NR_DIRTIED
))
446 ctf_integer(unsigned long, nr_written
, global_page_state(NR_WRITTEN
))
447 ctf_integer(unsigned long, background_thresh
, background_thresh
)
448 ctf_integer(unsigned long, dirty_thresh
, dirty_thresh
)
449 ctf_integer(unsigned long, dirty_limit
, global_dirty_limit
)
455 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
457 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
459 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
461 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
463 writeback_bdi_dirty_ratelimit
,
465 TP_PROTO(struct bdi_writeback
*wb
,
466 unsigned long dirty_rate
,
467 unsigned long task_ratelimit
),
469 TP_ARGS(wb
, dirty_rate
, task_ratelimit
),
472 ctf_array_text(char, bdi
, dev_name(wb
->bdi
->dev
), 32)
473 ctf_integer(unsigned long, write_bw
, KBps(wb
->bdi
->wb
.write_bandwidth
))
474 ctf_integer(unsigned long, avg_write_bw
, KBps(wb
->bdi
->wb
.avg_write_bandwidth
))
475 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
476 ctf_integer(unsigned long, dirty_ratelimit
, KBps(wb
->bdi
->wb
.dirty_ratelimit
))
477 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
478 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
479 KBps(wb
->bdi
->wb
.balanced_dirty_ratelimit
))
483 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
485 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
487 writeback_bdi_dirty_ratelimit
,
489 TP_PROTO(struct backing_dev_info
*bdi
,
490 unsigned long dirty_rate
,
491 unsigned long task_ratelimit
),
493 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
496 ctf_array_text(char, bdi
, dev_name(bdi
->dev
), 32)
497 ctf_integer(unsigned long, write_bw
, KBps(bdi
->wb
.write_bandwidth
))
498 ctf_integer(unsigned long, avg_write_bw
, KBps(bdi
->wb
.avg_write_bandwidth
))
499 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
500 ctf_integer(unsigned long, dirty_ratelimit
, KBps(bdi
->wb
.dirty_ratelimit
))
501 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
502 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
503 KBps(bdi
->wb
.balanced_dirty_ratelimit
))
507 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
509 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
511 writeback_bdi_dirty_ratelimit
,
513 TP_PROTO(struct backing_dev_info
*bdi
,
514 unsigned long dirty_rate
,
515 unsigned long task_ratelimit
),
517 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
520 ctf_array_text(char, bdi
, dev_name(bdi
->dev
), 32)
521 ctf_integer(unsigned long, write_bw
, KBps(bdi
->write_bandwidth
))
522 ctf_integer(unsigned long, avg_write_bw
, KBps(bdi
->avg_write_bandwidth
))
523 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
524 ctf_integer(unsigned long, dirty_ratelimit
, KBps(bdi
->dirty_ratelimit
))
525 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
526 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
527 KBps(bdi
->balanced_dirty_ratelimit
))
531 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
533 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
535 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
537 writeback_balance_dirty_pages
,
539 TP_PROTO(struct bdi_writeback
*wb
,
540 unsigned long thresh
,
541 unsigned long bg_thresh
,
543 unsigned long bdi_thresh
,
544 unsigned long bdi_dirty
,
545 unsigned long dirty_ratelimit
,
546 unsigned long task_ratelimit
,
547 unsigned long dirtied
,
548 unsigned long period
,
550 unsigned long start_time
),
552 TP_ARGS(wb
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
553 dirty_ratelimit
, task_ratelimit
,
554 dirtied
, period
, pause
, start_time
558 ctf_array_text(char, bdi
, dev_name(wb
->bdi
->dev
), 32)
559 ctf_integer(unsigned long, limit
, global_dirty_limit
)
560 ctf_integer(unsigned long, setpoint
,
561 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
562 ctf_integer(unsigned long, dirty
, dirty
)
563 ctf_integer(unsigned long, bdi_setpoint
,
564 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
565 bdi_thresh
/ (thresh
+ 1))
566 ctf_integer(unsigned long, bdi_dirty
, bdi_dirty
)
567 ctf_integer(unsigned long, dirty_ratelimit
,
568 KBps(dirty_ratelimit
))
569 ctf_integer(unsigned long, task_ratelimit
,
570 KBps(task_ratelimit
))
571 ctf_integer(unsigned int, dirtied
, dirtied
)
572 ctf_integer(unsigned int, dirtied_pause
,
573 current
->nr_dirtied_pause
)
574 ctf_integer(unsigned long, paused
,
575 (jiffies
- start_time
) * 1000 / HZ
)
576 ctf_integer(long, pause
, pause
* 1000 / HZ
)
577 ctf_integer(unsigned long, period
,
579 ctf_integer(long, think
,
580 current
->dirty_paused_when
== 0 ? 0 :
581 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
585 #else /* #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
587 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
589 writeback_balance_dirty_pages
,
591 TP_PROTO(struct backing_dev_info
*bdi
,
592 unsigned long thresh
,
593 unsigned long bg_thresh
,
595 unsigned long bdi_thresh
,
596 unsigned long bdi_dirty
,
597 unsigned long dirty_ratelimit
,
598 unsigned long task_ratelimit
,
599 unsigned long dirtied
,
600 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
601 unsigned long period
,
604 unsigned long start_time
),
606 TP_ARGS(bdi
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
607 dirty_ratelimit
, task_ratelimit
,
608 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
609 dirtied
, period
, pause
, start_time
611 dirtied
, pause
, start_time
616 ctf_array_text(char, bdi
, dev_name(bdi
->dev
), 32)
617 ctf_integer(unsigned long, limit
, global_dirty_limit
)
618 ctf_integer(unsigned long, setpoint
,
619 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
620 ctf_integer(unsigned long, dirty
, dirty
)
621 ctf_integer(unsigned long, bdi_setpoint
,
622 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
623 bdi_thresh
/ (thresh
+ 1))
624 ctf_integer(unsigned long, bdi_dirty
, bdi_dirty
)
625 ctf_integer(unsigned long, dirty_ratelimit
,
626 KBps(dirty_ratelimit
))
627 ctf_integer(unsigned long, task_ratelimit
,
628 KBps(task_ratelimit
))
629 ctf_integer(unsigned int, dirtied
, dirtied
)
630 ctf_integer(unsigned int, dirtied_pause
,
631 current
->nr_dirtied_pause
)
632 ctf_integer(unsigned long, paused
,
633 (jiffies
- start_time
) * 1000 / HZ
)
634 ctf_integer(long, pause
, pause
* 1000 / HZ
)
635 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
636 ctf_integer(unsigned long, period
,
638 ctf_integer(long, think
,
639 current
->dirty_paused_when
== 0 ? 0 :
640 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
644 #endif /* #else #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
646 #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) */
648 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
649 LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue
,
651 TP_PROTO(struct inode
*inode
),
655 ctf_array_text(char, name
,
656 dev_name(lttng_inode_to_bdi(inode
)->dev
), 32)
657 ctf_integer(unsigned long, ino
, inode
->i_ino
)
658 ctf_integer(unsigned long, state
, inode
->i_state
)
659 ctf_integer(unsigned long, dirtied_when
, inode
->dirtied_when
)
664 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
665 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template
,
667 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
669 TP_ARGS(usec_timeout
, usec_delayed
),
672 ctf_integer(unsigned int, usec_timeout
, usec_timeout
)
673 ctf_integer(unsigned int, usec_delayed
, usec_delayed
)
677 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_congestion_wait
,
679 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
681 TP_ARGS(usec_timeout
, usec_delayed
)
684 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_wait_iff_congested
,
686 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
688 TP_ARGS(usec_timeout
, usec_delayed
)
692 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
693 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template
,
695 TP_PROTO(struct inode
*inode
,
696 struct writeback_control
*wbc
,
697 unsigned long nr_to_write
700 TP_ARGS(inode
, wbc
, nr_to_write
),
703 ctf_array_text(char, name
,
704 dev_name(lttng_inode_to_bdi(inode
)->dev
), 32)
705 ctf_integer(unsigned long, ino
, inode
->i_ino
)
706 ctf_integer(unsigned long, state
, inode
->i_state
)
707 ctf_integer(unsigned long, dirtied_when
, inode
->dirtied_when
)
708 ctf_integer(unsigned long, writeback_index
,
709 inode
->i_mapping
->writeback_index
)
710 ctf_integer(long, nr_to_write
, nr_to_write
)
711 ctf_integer(unsigned long, wrote
,
712 nr_to_write
- wbc
->nr_to_write
)
716 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
717 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode_requeue
,
718 TP_PROTO(struct inode
*inode
,
719 struct writeback_control
*wbc
,
720 unsigned long nr_to_write
),
721 TP_ARGS(inode
, wbc
, nr_to_write
)
725 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode
,
726 TP_PROTO(struct inode
*inode
,
727 struct writeback_control
*wbc
,
728 unsigned long nr_to_write
),
729 TP_ARGS(inode
, wbc
, nr_to_write
)
733 #endif /* LTTNG_TRACE_WRITEBACK_H */
735 /* This part must be outside protection */
736 #include <probes/define_trace.h>