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 <lttng-kernel-version.h>
14 #ifndef _TRACE_WRITEBACK_DEF_
15 #define _TRACE_WRITEBACK_DEF_
17 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0) || \
18 LTTNG_KERNEL_RANGE(5,5,3, 5,6,0) || \
19 LTTNG_KERNEL_RANGE(5,4,19, 5,5,0))
20 static inline const char *lttng_bdi_dev_name(struct backing_dev_info
*bdi
)
22 return bdi_dev_name(bdi
);
25 static inline const char *lttng_bdi_dev_name(struct backing_dev_info
*bdi
)
27 if (!bdi
|| !bdi
->dev
)
29 return dev_name(bdi
->dev
);
34 * Vanilla kernels before 4.0 do not implement inode_to_bdi
35 * RHEL kernels before 3.10.0-327.10.1 do not implement inode_to_bdi
36 * RHEL kernel 3.10.0-327.10.1 has inode_to_bdi
37 * RHEL kernel 3.10.0-327.13.1 includes a partial merge of upstream
38 * commit a212b105b07d75b48b1a166378282e8a77fbf53d which inlines
39 * inode_to_bdi but not sb_is_blkdev_sb making it unusable by modules.
41 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(4,0,0))
42 static inline struct backing_dev_info
*lttng_inode_to_bdi(struct inode
*inode
)
44 struct super_block
*sb
;
47 return &noop_backing_dev_info
;
51 if (strcmp(sb
->s_type
->name
, "bdev") == 0)
52 return inode
->i_mapping
->backing_dev_info
;
57 static inline struct backing_dev_info
*lttng_inode_to_bdi(struct inode
*inode
)
59 return inode_to_bdi(inode
);
61 #endif /* #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(4,0,0)) */
65 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,9,0))
66 #define show_inode_state(state) \
67 __print_flags(state, "|", \
68 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
69 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
70 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
72 {I_WILL_FREE, "I_WILL_FREE"}, \
73 {I_FREEING, "I_FREEING"}, \
74 {I_CLEAR, "I_CLEAR"}, \
76 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
77 {I_REFERENCED, "I_REFERENCED"} \
79 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0))
80 #define show_inode_state(state) \
81 __print_flags(state, "|", \
82 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
83 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
84 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
86 {I_WILL_FREE, "I_WILL_FREE"}, \
87 {I_FREEING, "I_FREEING"}, \
88 {I_CLEAR, "I_CLEAR"}, \
90 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
91 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
92 {I_REFERENCED, "I_REFERENCED"} \
94 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0)) */
95 #define show_inode_state(state) \
96 __print_flags(state, "|", \
97 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
98 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
99 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
101 {I_WILL_FREE, "I_WILL_FREE"}, \
102 {I_FREEING, "I_FREEING"}, \
103 {I_CLEAR, "I_CLEAR"}, \
104 {I_SYNC, "I_SYNC"}, \
105 {I_REFERENCED, "I_REFERENCED"} \
107 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0)) */
109 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0))
111 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page
,
112 TP_PROTO(struct page
*page
, struct address_space
*mapping
),
113 TP_ARGS(page
, mapping
),
115 ctf_string(name
, lttng_bdi_dev_name(mapping
? lttng_inode_to_bdi(mapping
->host
) : NULL
))
116 ctf_integer(unsigned long, ino
, mapping
? mapping
->host
->i_ino
: 0)
117 ctf_integer(pgoff_t
, index
, page
->index
)
121 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template
,
122 TP_PROTO(struct inode
*inode
, int flags
),
123 TP_ARGS(inode
, flags
),
125 /* may be called for files on pseudo FSes w/ unregistered bdi */
126 ctf_string(name
, lttng_bdi_dev_name(lttng_inode_to_bdi(inode
)))
127 ctf_integer(unsigned long, ino
, inode
->i_ino
)
128 ctf_integer(unsigned long, state
, inode
->i_state
)
129 ctf_integer(unsigned long, flags
, flags
)
132 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
133 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
134 TP_PROTO(struct inode *inode, int flags), \
135 TP_ARGS(inode, flags))
136 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start
)
137 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode
)
138 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty
)
140 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template
,
141 TP_PROTO(struct inode
*inode
, struct writeback_control
*wbc
),
144 ctf_string(name
, lttng_bdi_dev_name(lttng_inode_to_bdi(inode
)))
145 ctf_integer(unsigned long, ino
, inode
->i_ino
)
146 ctf_integer(int, sync_mode
, wbc
->sync_mode
)
150 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
151 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
152 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
154 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start
)
155 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode
)
157 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0))
159 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page
,
160 TP_PROTO(struct page
*page
, struct address_space
*mapping
),
161 TP_ARGS(page
, mapping
),
163 ctf_string(name
, lttng_bdi_dev_name(mapping
? mapping
->backing_dev_info
: NULL
))
164 ctf_integer(unsigned long, ino
, mapping
? mapping
->host
->i_ino
: 0)
165 ctf_integer(pgoff_t
, index
, page
->index
)
169 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template
,
170 TP_PROTO(struct inode
*inode
, int flags
),
171 TP_ARGS(inode
, flags
),
173 /* may be called for files on pseudo FSes w/ unregistered bdi */
174 ctf_string(name
, lttng_bdi_dev_name(inode
->i_mapping
->backing_dev_info
))
175 ctf_integer(unsigned long, ino
, inode
->i_ino
)
176 ctf_integer(unsigned long, flags
, flags
)
179 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
180 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
181 TP_PROTO(struct inode *inode, int flags), \
182 TP_ARGS(inode, flags))
183 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start
)
184 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode
)
186 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template
,
187 TP_PROTO(struct inode
*inode
, struct writeback_control
*wbc
),
190 ctf_string(name
, lttng_bdi_dev_name(inode
->i_mapping
->backing_dev_info
))
191 ctf_integer(unsigned long, ino
, inode
->i_ino
)
192 ctf_integer(int, sync_mode
, wbc
->sync_mode
)
196 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
197 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
198 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
200 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start
)
201 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode
)
203 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) */
205 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
207 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
208 TP_PROTO(struct bdi_writeback
*wb
, struct wb_writeback_work
*work
),
211 ctf_string(name
, lttng_bdi_dev_name(wb
->bdi
))
217 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
218 TP_PROTO(struct backing_dev_info
*bdi
, struct wb_writeback_work
*work
),
221 ctf_string(name
, lttng_bdi_dev_name(bdi
))
225 #endif /* #else if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
227 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_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 bdi_writeback *wb, struct wb_writeback_work *work), \
234 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
236 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
237 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
238 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
241 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
243 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread
)
244 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue
)
245 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec
)
246 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
247 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start
)
248 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written
)
249 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait
)
252 LTTNG_TRACEPOINT_EVENT(writeback_pages_written
,
253 TP_PROTO(long pages_written
),
254 TP_ARGS(pages_written
),
256 ctf_integer(long, pages
, pages_written
)
260 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
262 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
263 TP_PROTO(struct bdi_writeback
*wb
),
266 ctf_string(name
, lttng_bdi_dev_name(wb
->bdi
))
270 #undef DEFINE_WRITEBACK_EVENT
271 #define DEFINE_WRITEBACK_EVENT(name) \
272 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
273 TP_PROTO(struct bdi_writeback *wb), \
276 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
277 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
278 TP_PROTO(struct bdi_writeback *wb), \
281 LTTNG_TRACEPOINT_EVENT(writeback_bdi_register
,
282 TP_PROTO(struct backing_dev_info
*bdi
),
285 ctf_string(name
, lttng_bdi_dev_name(bdi
))
289 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
291 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
292 TP_PROTO(struct backing_dev_info
*bdi
),
295 ctf_string(name
, lttng_bdi_dev_name(bdi
))
299 #undef DEFINE_WRITEBACK_EVENT
300 #define DEFINE_WRITEBACK_EVENT(name) \
301 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
302 TP_PROTO(struct backing_dev_info *bdi), \
305 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
306 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
307 TP_PROTO(struct backing_dev_info *bdi), \
310 DEFINE_WRITEBACK_EVENT(writeback_bdi_register
)
312 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
314 DEFINE_WRITEBACK_EVENT(writeback_nowork
)
315 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(2,6,38))
316 DEFINE_WRITEBACK_EVENT(writeback_wake_background
)
318 DEFINE_WRITEBACK_EVENT(writeback_wake_thread
)
319 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread
)
320 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister
)
321 DEFINE_WRITEBACK_EVENT(writeback_thread_start
)
322 DEFINE_WRITEBACK_EVENT(writeback_thread_stop
)
323 #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
324 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start
, writeback_balance_dirty_start
)
325 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait
, writeback_balance_dirty_wait
)
327 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written
,
329 writeback_balance_dirty_written
,
331 TP_PROTO(struct backing_dev_info
*bdi
, int written
),
333 TP_ARGS(bdi
, written
),
336 ctf_string(name
, lttng_bdi_dev_name(bdi
))
337 ctf_integer(int, written
, written
)
342 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class
,
343 TP_PROTO(struct writeback_control
*wbc
, struct backing_dev_info
*bdi
),
346 ctf_string(name
, lttng_bdi_dev_name(bdi
))
347 ctf_integer(long, nr_to_write
, wbc
->nr_to_write
)
348 ctf_integer(long, pages_skipped
, wbc
->pages_skipped
)
349 ctf_integer(int, sync_mode
, wbc
->sync_mode
)
350 ctf_integer(int, for_kupdate
, wbc
->for_kupdate
)
351 ctf_integer(int, for_background
, wbc
->for_background
)
352 ctf_integer(int, for_reclaim
, wbc
->for_reclaim
)
353 ctf_integer(int, range_cyclic
, wbc
->range_cyclic
)
354 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,1,0))
355 ctf_integer(int, more_io
, wbc
->more_io
)
356 ctf_integer(unsigned long, older_than_this
,
357 wbc
->older_than_this
? *wbc
->older_than_this
: 0)
359 ctf_integer(long, range_start
, (long) wbc
->range_start
)
360 ctf_integer(long, range_end
, (long) wbc
->range_end
)
364 #undef DEFINE_WBC_EVENT
365 #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
366 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
367 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
369 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,1,0))
370 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start
, writeback_wbc_writeback_start
)
371 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written
, writeback_wbc_writeback_written
)
372 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait
, writeback_wbc_writeback_wait
)
373 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start
, writeback_wbc_balance_dirty_start
)
374 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written
, writeback_wbc_balance_dirty_written
)
375 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait
, writeback_wbc_balance_dirty_wait
)
377 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage
, writeback_wbc_writepage
)
379 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,9,0) || \
380 LTTNG_KERNEL_RANGE(5,8,6, 5,9,0) || \
381 LTTNG_KERNEL_RANGE(5,4,62, 5,5,0) || \
382 LTTNG_KERNEL_RANGE(4,19,143, 4,20,0) || \
383 LTTNG_KERNEL_RANGE(4,14,196, 4,15,0) || \
384 LTTNG_KERNEL_RANGE(4,9,235, 4,10,0) || \
385 LTTNG_KERNEL_RANGE(4,4,235, 4,5,0) || \
386 LTTNG_UBUNTU_KERNEL_RANGE(4,15,18,119, 4,16,0,0))
387 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
388 TP_PROTO(struct bdi_writeback
*wb
,
389 struct wb_writeback_work
*work
,
390 unsigned long dirtied_before
,
392 TP_ARGS(wb
, work
, dirtied_before
, moved
),
394 ctf_string(name
, lttng_bdi_dev_name(wb
->bdi
))
395 ctf_integer(unsigned long, older
, dirtied_before
)
396 ctf_integer(int, moved
, moved
)
399 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0))
400 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
401 TP_PROTO(struct bdi_writeback
*wb
,
402 struct wb_writeback_work
*work
,
404 TP_ARGS(wb
, work
, moved
),
406 ctf_string(name
, lttng_bdi_dev_name(wb
->bdi
))
407 ctf_integer(int, moved
, moved
)
410 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
411 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
412 TP_PROTO(struct bdi_writeback
*wb
,
413 unsigned long *older_than_this
,
415 TP_ARGS(wb
, older_than_this
, moved
),
417 ctf_string(name
, lttng_bdi_dev_name(wb
->bdi
))
418 ctf_integer(unsigned long, older
,
419 older_than_this
? *older_than_this
: 0)
420 ctf_integer(long, age
,
422 (jiffies
- *older_than_this
) * 1000 / HZ
424 ctf_integer(int, moved
, moved
)
429 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,8,0))
430 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
432 writeback_global_dirty_state
,
434 TP_PROTO(unsigned long background_thresh
,
435 unsigned long dirty_thresh
438 TP_ARGS(background_thresh
,
443 ctf_integer(unsigned long, nr_dirty
, global_node_page_state(NR_FILE_DIRTY
))
444 ctf_integer(unsigned long, nr_writeback
, global_node_page_state(NR_WRITEBACK
))
445 ctf_integer(unsigned long, nr_dirtied
, global_node_page_state(NR_DIRTIED
))
446 ctf_integer(unsigned long, nr_written
, global_node_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
)
452 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0))
453 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
455 writeback_global_dirty_state
,
457 TP_PROTO(unsigned long background_thresh
,
458 unsigned long dirty_thresh
461 TP_ARGS(background_thresh
,
466 ctf_integer(unsigned long, nr_dirty
, global_node_page_state(NR_FILE_DIRTY
))
467 ctf_integer(unsigned long, nr_writeback
, global_node_page_state(NR_WRITEBACK
))
468 ctf_integer(unsigned long, nr_unstable
, global_node_page_state(NR_UNSTABLE_NFS
))
469 ctf_integer(unsigned long, nr_dirtied
, global_node_page_state(NR_DIRTIED
))
470 ctf_integer(unsigned long, nr_written
, global_node_page_state(NR_WRITTEN
))
471 ctf_integer(unsigned long, background_thresh
, background_thresh
)
472 ctf_integer(unsigned long, dirty_thresh
, dirty_thresh
)
473 ctf_integer(unsigned long, dirty_limit
, global_dirty_limit
)
476 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
477 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
479 writeback_global_dirty_state
,
481 TP_PROTO(unsigned long background_thresh
,
482 unsigned long dirty_thresh
485 TP_ARGS(background_thresh
,
490 ctf_integer(unsigned long, nr_dirty
, global_page_state(NR_FILE_DIRTY
))
491 ctf_integer(unsigned long, nr_writeback
, global_page_state(NR_WRITEBACK
))
492 ctf_integer(unsigned long, nr_unstable
, global_page_state(NR_UNSTABLE_NFS
))
493 ctf_integer(unsigned long, nr_dirtied
, global_page_state(NR_DIRTIED
))
494 ctf_integer(unsigned long, nr_written
, global_page_state(NR_WRITTEN
))
495 ctf_integer(unsigned long, background_thresh
, background_thresh
)
496 ctf_integer(unsigned long, dirty_thresh
, dirty_thresh
)
497 ctf_integer(unsigned long, dirty_limit
, global_dirty_limit
)
502 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0))
504 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
506 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
508 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
510 writeback_bdi_dirty_ratelimit
,
512 TP_PROTO(struct bdi_writeback
*wb
,
513 unsigned long dirty_rate
,
514 unsigned long task_ratelimit
),
516 TP_ARGS(wb
, dirty_rate
, task_ratelimit
),
519 ctf_string(bdi
, lttng_bdi_dev_name(wb
->bdi
))
520 ctf_integer(unsigned long, write_bw
, KBps(wb
->bdi
->wb
.write_bandwidth
))
521 ctf_integer(unsigned long, avg_write_bw
, KBps(wb
->bdi
->wb
.avg_write_bandwidth
))
522 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
523 ctf_integer(unsigned long, dirty_ratelimit
, KBps(wb
->bdi
->wb
.dirty_ratelimit
))
524 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
525 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
526 KBps(wb
->bdi
->wb
.balanced_dirty_ratelimit
))
530 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0))
532 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
534 writeback_bdi_dirty_ratelimit
,
536 TP_PROTO(struct backing_dev_info
*bdi
,
537 unsigned long dirty_rate
,
538 unsigned long task_ratelimit
),
540 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
543 ctf_string(bdi
, lttng_bdi_dev_name(bdi
))
544 ctf_integer(unsigned long, write_bw
, KBps(bdi
->wb
.write_bandwidth
))
545 ctf_integer(unsigned long, avg_write_bw
, KBps(bdi
->wb
.avg_write_bandwidth
))
546 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
547 ctf_integer(unsigned long, dirty_ratelimit
, KBps(bdi
->wb
.dirty_ratelimit
))
548 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
549 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
550 KBps(bdi
->wb
.balanced_dirty_ratelimit
))
554 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */
556 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
558 writeback_bdi_dirty_ratelimit
,
560 TP_PROTO(struct backing_dev_info
*bdi
,
561 unsigned long dirty_rate
,
562 unsigned long task_ratelimit
),
564 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
567 ctf_string(bdi
, lttng_bdi_dev_name(bdi
))
568 ctf_integer(unsigned long, write_bw
, KBps(bdi
->write_bandwidth
))
569 ctf_integer(unsigned long, avg_write_bw
, KBps(bdi
->avg_write_bandwidth
))
570 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
571 ctf_integer(unsigned long, dirty_ratelimit
, KBps(bdi
->dirty_ratelimit
))
572 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
573 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
574 KBps(bdi
->balanced_dirty_ratelimit
))
578 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */
580 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
582 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
584 writeback_balance_dirty_pages
,
586 TP_PROTO(struct bdi_writeback
*wb
,
587 unsigned long thresh
,
588 unsigned long bg_thresh
,
590 unsigned long bdi_thresh
,
591 unsigned long bdi_dirty
,
592 unsigned long dirty_ratelimit
,
593 unsigned long task_ratelimit
,
594 unsigned long dirtied
,
595 unsigned long period
,
597 unsigned long start_time
),
599 TP_ARGS(wb
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
600 dirty_ratelimit
, task_ratelimit
,
601 dirtied
, period
, pause
, start_time
605 ctf_string(bdi
, lttng_bdi_dev_name(wb
->bdi
))
606 ctf_integer(unsigned long, limit
, global_dirty_limit
)
607 ctf_integer(unsigned long, setpoint
,
608 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
609 ctf_integer(unsigned long, dirty
, dirty
)
610 ctf_integer(unsigned long, bdi_setpoint
,
611 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
612 bdi_thresh
/ (thresh
+ 1))
613 ctf_integer(unsigned long, bdi_dirty
, bdi_dirty
)
614 ctf_integer(unsigned long, dirty_ratelimit
,
615 KBps(dirty_ratelimit
))
616 ctf_integer(unsigned long, task_ratelimit
,
617 KBps(task_ratelimit
))
618 ctf_integer(unsigned int, dirtied
, dirtied
)
619 ctf_integer(unsigned int, dirtied_pause
,
620 current
->nr_dirtied_pause
)
621 ctf_integer(unsigned long, paused
,
622 (jiffies
- start_time
) * 1000 / HZ
)
623 ctf_integer(long, pause
, pause
* 1000 / HZ
)
624 ctf_integer(unsigned long, period
,
626 ctf_integer(long, think
,
627 current
->dirty_paused_when
== 0 ? 0 :
628 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
632 #else /* #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
634 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
636 writeback_balance_dirty_pages
,
638 TP_PROTO(struct backing_dev_info
*bdi
,
639 unsigned long thresh
,
640 unsigned long bg_thresh
,
642 unsigned long bdi_thresh
,
643 unsigned long bdi_dirty
,
644 unsigned long dirty_ratelimit
,
645 unsigned long task_ratelimit
,
646 unsigned long dirtied
,
647 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
648 unsigned long period
,
651 unsigned long start_time
),
653 TP_ARGS(bdi
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
654 dirty_ratelimit
, task_ratelimit
,
655 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
656 dirtied
, period
, pause
, start_time
658 dirtied
, pause
, start_time
663 ctf_string(bdi
, lttng_bdi_dev_name(bdi
))
664 ctf_integer(unsigned long, limit
, global_dirty_limit
)
665 ctf_integer(unsigned long, setpoint
,
666 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
667 ctf_integer(unsigned long, dirty
, dirty
)
668 ctf_integer(unsigned long, bdi_setpoint
,
669 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
670 bdi_thresh
/ (thresh
+ 1))
671 ctf_integer(unsigned long, bdi_dirty
, bdi_dirty
)
672 ctf_integer(unsigned long, dirty_ratelimit
,
673 KBps(dirty_ratelimit
))
674 ctf_integer(unsigned long, task_ratelimit
,
675 KBps(task_ratelimit
))
676 ctf_integer(unsigned int, dirtied
, dirtied
)
677 ctf_integer(unsigned int, dirtied_pause
,
678 current
->nr_dirtied_pause
)
679 ctf_integer(unsigned long, paused
,
680 (jiffies
- start_time
) * 1000 / HZ
)
681 ctf_integer(long, pause
, pause
* 1000 / HZ
)
682 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
683 ctf_integer(unsigned long, period
,
685 ctf_integer(long, think
,
686 current
->dirty_paused_when
== 0 ? 0 :
687 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
691 #endif /* #else #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
693 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0)) */
695 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,5,0))
696 LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue
,
698 TP_PROTO(struct inode
*inode
),
702 ctf_string(name
, lttng_bdi_dev_name(lttng_inode_to_bdi(inode
)))
703 ctf_integer(unsigned long, ino
, inode
->i_ino
)
704 ctf_integer(unsigned long, state
, inode
->i_state
)
705 ctf_integer(unsigned long, dirtied_when
, inode
->dirtied_when
)
710 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(2,6,37))
711 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template
,
713 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
715 TP_ARGS(usec_timeout
, usec_delayed
),
718 ctf_integer(unsigned int, usec_timeout
, usec_timeout
)
719 ctf_integer(unsigned int, usec_delayed
, usec_delayed
)
723 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_congestion_wait
,
725 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
727 TP_ARGS(usec_timeout
, usec_delayed
)
730 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_wait_iff_congested
,
732 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
734 TP_ARGS(usec_timeout
, usec_delayed
)
738 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
739 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template
,
741 TP_PROTO(struct inode
*inode
,
742 struct writeback_control
*wbc
,
743 unsigned long nr_to_write
746 TP_ARGS(inode
, wbc
, nr_to_write
),
749 ctf_string(name
, lttng_bdi_dev_name(lttng_inode_to_bdi(inode
)))
750 ctf_integer(unsigned long, ino
, inode
->i_ino
)
751 ctf_integer(unsigned long, state
, inode
->i_state
)
752 ctf_integer(unsigned long, dirtied_when
, inode
->dirtied_when
)
753 ctf_integer(unsigned long, writeback_index
,
754 inode
->i_mapping
->writeback_index
)
755 ctf_integer(long, nr_to_write
, nr_to_write
)
756 ctf_integer(unsigned long, wrote
,
757 nr_to_write
- wbc
->nr_to_write
)
761 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,5,0))
762 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode_requeue
,
763 TP_PROTO(struct inode
*inode
,
764 struct writeback_control
*wbc
,
765 unsigned long nr_to_write
),
766 TP_ARGS(inode
, wbc
, nr_to_write
)
770 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode
,
771 TP_PROTO(struct inode
*inode
,
772 struct writeback_control
*wbc
,
773 unsigned long nr_to_write
),
774 TP_ARGS(inode
, wbc
, nr_to_write
)
778 #endif /* LTTNG_TRACE_WRITEBACK_H */
780 /* This part must be outside protection */
781 #include <probes/define_trace.h>