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_
18 * Use the GPL-exported bdi_dev_name introduced in kernel 5.7. Do not use
19 * static inline bdi_dev_name in prior kernels because it uses the bdi_unknown_name
20 * symbol which is not exported to GPL modules.
22 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,7,0))
23 static inline const char *lttng_bdi_dev_name(struct backing_dev_info
*bdi
)
25 return bdi_dev_name(bdi
);
28 static inline const char *lttng_bdi_dev_name(struct backing_dev_info
*bdi
)
30 if (!bdi
|| !bdi
->dev
)
32 return dev_name(bdi
->dev
);
37 * Vanilla kernels before 4.0 do not implement inode_to_bdi
38 * RHEL kernels before 3.10.0-327.10.1 do not implement inode_to_bdi
39 * RHEL kernel 3.10.0-327.10.1 has inode_to_bdi
40 * RHEL kernel 3.10.0-327.13.1 includes a partial merge of upstream
41 * commit a212b105b07d75b48b1a166378282e8a77fbf53d which inlines
42 * inode_to_bdi but not sb_is_blkdev_sb making it unusable by modules.
44 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(4,0,0))
45 static inline struct backing_dev_info
*lttng_inode_to_bdi(struct inode
*inode
)
47 struct super_block
*sb
;
50 return &noop_backing_dev_info
;
54 if (strcmp(sb
->s_type
->name
, "bdev") == 0)
55 return inode
->i_mapping
->backing_dev_info
;
60 static inline struct backing_dev_info
*lttng_inode_to_bdi(struct inode
*inode
)
62 return inode_to_bdi(inode
);
64 #endif /* #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(4,0,0)) */
68 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,9,0))
69 #define show_inode_state(state) \
70 __print_flags(state, "|", \
71 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
72 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
73 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
75 {I_WILL_FREE, "I_WILL_FREE"}, \
76 {I_FREEING, "I_FREEING"}, \
77 {I_CLEAR, "I_CLEAR"}, \
79 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
80 {I_REFERENCED, "I_REFERENCED"} \
82 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0))
83 #define show_inode_state(state) \
84 __print_flags(state, "|", \
85 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
86 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
87 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
89 {I_WILL_FREE, "I_WILL_FREE"}, \
90 {I_FREEING, "I_FREEING"}, \
91 {I_CLEAR, "I_CLEAR"}, \
93 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
94 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
95 {I_REFERENCED, "I_REFERENCED"} \
97 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0)) */
98 #define show_inode_state(state) \
99 __print_flags(state, "|", \
100 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
101 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
102 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
104 {I_WILL_FREE, "I_WILL_FREE"}, \
105 {I_FREEING, "I_FREEING"}, \
106 {I_CLEAR, "I_CLEAR"}, \
107 {I_SYNC, "I_SYNC"}, \
108 {I_REFERENCED, "I_REFERENCED"} \
110 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0)) */
112 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0))
114 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page
,
115 TP_PROTO(struct page
*page
, struct address_space
*mapping
),
116 TP_ARGS(page
, mapping
),
118 ctf_string(name
, lttng_bdi_dev_name(mapping
? lttng_inode_to_bdi(mapping
->host
) : NULL
))
119 ctf_integer(unsigned long, ino
, mapping
? mapping
->host
->i_ino
: 0)
120 ctf_integer(pgoff_t
, index
, page
->index
)
124 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template
,
125 TP_PROTO(struct inode
*inode
, int flags
),
126 TP_ARGS(inode
, flags
),
128 /* may be called for files on pseudo FSes w/ unregistered bdi */
129 ctf_string(name
, lttng_bdi_dev_name(lttng_inode_to_bdi(inode
)))
130 ctf_integer(unsigned long, ino
, inode
->i_ino
)
131 ctf_integer(unsigned long, state
, inode
->i_state
)
132 ctf_integer(unsigned long, flags
, flags
)
135 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
136 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
137 TP_PROTO(struct inode *inode, int flags), \
138 TP_ARGS(inode, flags))
139 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start
)
140 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode
)
141 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty
)
143 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template
,
144 TP_PROTO(struct inode
*inode
, struct writeback_control
*wbc
),
147 ctf_string(name
, lttng_bdi_dev_name(lttng_inode_to_bdi(inode
)))
148 ctf_integer(unsigned long, ino
, inode
->i_ino
)
149 ctf_integer(int, sync_mode
, wbc
->sync_mode
)
153 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
154 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
155 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
157 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start
)
158 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode
)
160 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0))
162 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page
,
163 TP_PROTO(struct page
*page
, struct address_space
*mapping
),
164 TP_ARGS(page
, mapping
),
166 ctf_string(name
, lttng_bdi_dev_name(mapping
? mapping
->backing_dev_info
: NULL
))
167 ctf_integer(unsigned long, ino
, mapping
? mapping
->host
->i_ino
: 0)
168 ctf_integer(pgoff_t
, index
, page
->index
)
172 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template
,
173 TP_PROTO(struct inode
*inode
, int flags
),
174 TP_ARGS(inode
, flags
),
176 /* may be called for files on pseudo FSes w/ unregistered bdi */
177 ctf_string(name
, lttng_bdi_dev_name(inode
->i_mapping
->backing_dev_info
))
178 ctf_integer(unsigned long, ino
, inode
->i_ino
)
179 ctf_integer(unsigned long, flags
, flags
)
182 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
183 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
184 TP_PROTO(struct inode *inode, int flags), \
185 TP_ARGS(inode, flags))
186 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start
)
187 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode
)
189 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template
,
190 TP_PROTO(struct inode
*inode
, struct writeback_control
*wbc
),
193 ctf_string(name
, lttng_bdi_dev_name(inode
->i_mapping
->backing_dev_info
))
194 ctf_integer(unsigned long, ino
, inode
->i_ino
)
195 ctf_integer(int, sync_mode
, wbc
->sync_mode
)
199 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
200 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
201 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
203 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start
)
204 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode
)
206 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) */
208 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
210 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
211 TP_PROTO(struct bdi_writeback
*wb
, struct wb_writeback_work
*work
),
214 ctf_string(name
, lttng_bdi_dev_name(wb
->bdi
))
220 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
221 TP_PROTO(struct backing_dev_info
*bdi
, struct wb_writeback_work
*work
),
224 ctf_string(name
, lttng_bdi_dev_name(bdi
))
228 #endif /* #else if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
230 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
232 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
233 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
234 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
237 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
239 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
240 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
241 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
244 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
246 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread
)
247 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue
)
248 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec
)
249 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
250 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start
)
251 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written
)
252 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait
)
255 LTTNG_TRACEPOINT_EVENT(writeback_pages_written
,
256 TP_PROTO(long pages_written
),
257 TP_ARGS(pages_written
),
259 ctf_integer(long, pages
, pages_written
)
263 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
265 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
266 TP_PROTO(struct bdi_writeback
*wb
),
269 ctf_string(name
, lttng_bdi_dev_name(wb
->bdi
))
273 #undef DEFINE_WRITEBACK_EVENT
274 #define DEFINE_WRITEBACK_EVENT(name) \
275 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
276 TP_PROTO(struct bdi_writeback *wb), \
279 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
280 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
281 TP_PROTO(struct bdi_writeback *wb), \
284 LTTNG_TRACEPOINT_EVENT(writeback_bdi_register
,
285 TP_PROTO(struct backing_dev_info
*bdi
),
288 ctf_string(name
, lttng_bdi_dev_name(bdi
))
292 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
294 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
295 TP_PROTO(struct backing_dev_info
*bdi
),
298 ctf_string(name
, lttng_bdi_dev_name(bdi
))
302 #undef DEFINE_WRITEBACK_EVENT
303 #define DEFINE_WRITEBACK_EVENT(name) \
304 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
305 TP_PROTO(struct backing_dev_info *bdi), \
308 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
309 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
310 TP_PROTO(struct backing_dev_info *bdi), \
313 DEFINE_WRITEBACK_EVENT(writeback_bdi_register
)
315 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
317 DEFINE_WRITEBACK_EVENT(writeback_nowork
)
318 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(2,6,38))
319 DEFINE_WRITEBACK_EVENT(writeback_wake_background
)
321 DEFINE_WRITEBACK_EVENT(writeback_wake_thread
)
322 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread
)
323 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister
)
324 DEFINE_WRITEBACK_EVENT(writeback_thread_start
)
325 DEFINE_WRITEBACK_EVENT(writeback_thread_stop
)
326 #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
327 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start
, writeback_balance_dirty_start
)
328 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait
, writeback_balance_dirty_wait
)
330 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written
,
332 writeback_balance_dirty_written
,
334 TP_PROTO(struct backing_dev_info
*bdi
, int written
),
336 TP_ARGS(bdi
, written
),
339 ctf_string(name
, lttng_bdi_dev_name(bdi
))
340 ctf_integer(int, written
, written
)
345 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class
,
346 TP_PROTO(struct writeback_control
*wbc
, struct backing_dev_info
*bdi
),
349 ctf_string(name
, lttng_bdi_dev_name(bdi
))
350 ctf_integer(long, nr_to_write
, wbc
->nr_to_write
)
351 ctf_integer(long, pages_skipped
, wbc
->pages_skipped
)
352 ctf_integer(int, sync_mode
, wbc
->sync_mode
)
353 ctf_integer(int, for_kupdate
, wbc
->for_kupdate
)
354 ctf_integer(int, for_background
, wbc
->for_background
)
355 ctf_integer(int, for_reclaim
, wbc
->for_reclaim
)
356 ctf_integer(int, range_cyclic
, wbc
->range_cyclic
)
357 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,1,0))
358 ctf_integer(int, more_io
, wbc
->more_io
)
359 ctf_integer(unsigned long, older_than_this
,
360 wbc
->older_than_this
? *wbc
->older_than_this
: 0)
362 ctf_integer(long, range_start
, (long) wbc
->range_start
)
363 ctf_integer(long, range_end
, (long) wbc
->range_end
)
367 #undef DEFINE_WBC_EVENT
368 #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
369 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
370 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
372 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,1,0))
373 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start
, writeback_wbc_writeback_start
)
374 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written
, writeback_wbc_writeback_written
)
375 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait
, writeback_wbc_writeback_wait
)
376 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start
, writeback_wbc_balance_dirty_start
)
377 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written
, writeback_wbc_balance_dirty_written
)
378 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait
, writeback_wbc_balance_dirty_wait
)
380 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage
, writeback_wbc_writepage
)
382 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,9,0) || \
383 LTTNG_KERNEL_RANGE(5,8,6, 5,9,0) || \
384 LTTNG_KERNEL_RANGE(5,4,62, 5,5,0) || \
385 LTTNG_KERNEL_RANGE(4,19,143, 4,20,0) || \
386 LTTNG_KERNEL_RANGE(4,14,196, 4,15,0) || \
387 LTTNG_KERNEL_RANGE(4,9,235, 4,10,0) || \
388 LTTNG_KERNEL_RANGE(4,4,235, 4,5,0) || \
389 LTTNG_UBUNTU_KERNEL_RANGE(4,15,18,119, 4,16,0,0))
390 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
391 TP_PROTO(struct bdi_writeback
*wb
,
392 struct wb_writeback_work
*work
,
393 unsigned long dirtied_before
,
395 TP_ARGS(wb
, work
, dirtied_before
, moved
),
397 ctf_string(name
, lttng_bdi_dev_name(wb
->bdi
))
398 ctf_integer(unsigned long, older
, dirtied_before
)
399 ctf_integer(int, moved
, moved
)
402 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0))
403 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
404 TP_PROTO(struct bdi_writeback
*wb
,
405 struct wb_writeback_work
*work
,
407 TP_ARGS(wb
, work
, moved
),
409 ctf_string(name
, lttng_bdi_dev_name(wb
->bdi
))
410 ctf_integer(int, moved
, moved
)
413 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
414 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
415 TP_PROTO(struct bdi_writeback
*wb
,
416 unsigned long *older_than_this
,
418 TP_ARGS(wb
, older_than_this
, moved
),
420 ctf_string(name
, lttng_bdi_dev_name(wb
->bdi
))
421 ctf_integer(unsigned long, older
,
422 older_than_this
? *older_than_this
: 0)
423 ctf_integer(long, age
,
425 (jiffies
- *older_than_this
) * 1000 / HZ
427 ctf_integer(int, moved
, moved
)
432 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,8,0))
433 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
435 writeback_global_dirty_state
,
437 TP_PROTO(unsigned long background_thresh
,
438 unsigned long dirty_thresh
441 TP_ARGS(background_thresh
,
446 ctf_integer(unsigned long, nr_dirty
, global_node_page_state(NR_FILE_DIRTY
))
447 ctf_integer(unsigned long, nr_writeback
, global_node_page_state(NR_WRITEBACK
))
448 ctf_integer(unsigned long, nr_dirtied
, global_node_page_state(NR_DIRTIED
))
449 ctf_integer(unsigned long, nr_written
, global_node_page_state(NR_WRITTEN
))
450 ctf_integer(unsigned long, background_thresh
, background_thresh
)
451 ctf_integer(unsigned long, dirty_thresh
, dirty_thresh
)
452 ctf_integer(unsigned long, dirty_limit
, global_dirty_limit
)
455 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0))
456 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
458 writeback_global_dirty_state
,
460 TP_PROTO(unsigned long background_thresh
,
461 unsigned long dirty_thresh
464 TP_ARGS(background_thresh
,
469 ctf_integer(unsigned long, nr_dirty
, global_node_page_state(NR_FILE_DIRTY
))
470 ctf_integer(unsigned long, nr_writeback
, global_node_page_state(NR_WRITEBACK
))
471 ctf_integer(unsigned long, nr_unstable
, global_node_page_state(NR_UNSTABLE_NFS
))
472 ctf_integer(unsigned long, nr_dirtied
, global_node_page_state(NR_DIRTIED
))
473 ctf_integer(unsigned long, nr_written
, global_node_page_state(NR_WRITTEN
))
474 ctf_integer(unsigned long, background_thresh
, background_thresh
)
475 ctf_integer(unsigned long, dirty_thresh
, dirty_thresh
)
476 ctf_integer(unsigned long, dirty_limit
, global_dirty_limit
)
479 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
480 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
482 writeback_global_dirty_state
,
484 TP_PROTO(unsigned long background_thresh
,
485 unsigned long dirty_thresh
488 TP_ARGS(background_thresh
,
493 ctf_integer(unsigned long, nr_dirty
, global_page_state(NR_FILE_DIRTY
))
494 ctf_integer(unsigned long, nr_writeback
, global_page_state(NR_WRITEBACK
))
495 ctf_integer(unsigned long, nr_unstable
, global_page_state(NR_UNSTABLE_NFS
))
496 ctf_integer(unsigned long, nr_dirtied
, global_page_state(NR_DIRTIED
))
497 ctf_integer(unsigned long, nr_written
, global_page_state(NR_WRITTEN
))
498 ctf_integer(unsigned long, background_thresh
, background_thresh
)
499 ctf_integer(unsigned long, dirty_thresh
, dirty_thresh
)
500 ctf_integer(unsigned long, dirty_limit
, global_dirty_limit
)
505 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0))
507 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
509 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
511 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
513 writeback_bdi_dirty_ratelimit
,
515 TP_PROTO(struct bdi_writeback
*wb
,
516 unsigned long dirty_rate
,
517 unsigned long task_ratelimit
),
519 TP_ARGS(wb
, dirty_rate
, task_ratelimit
),
522 ctf_string(bdi
, lttng_bdi_dev_name(wb
->bdi
))
523 ctf_integer(unsigned long, write_bw
, KBps(wb
->bdi
->wb
.write_bandwidth
))
524 ctf_integer(unsigned long, avg_write_bw
, KBps(wb
->bdi
->wb
.avg_write_bandwidth
))
525 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
526 ctf_integer(unsigned long, dirty_ratelimit
, KBps(wb
->bdi
->wb
.dirty_ratelimit
))
527 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
528 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
529 KBps(wb
->bdi
->wb
.balanced_dirty_ratelimit
))
533 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0))
535 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
537 writeback_bdi_dirty_ratelimit
,
539 TP_PROTO(struct backing_dev_info
*bdi
,
540 unsigned long dirty_rate
,
541 unsigned long task_ratelimit
),
543 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
546 ctf_string(bdi
, lttng_bdi_dev_name(bdi
))
547 ctf_integer(unsigned long, write_bw
, KBps(bdi
->wb
.write_bandwidth
))
548 ctf_integer(unsigned long, avg_write_bw
, KBps(bdi
->wb
.avg_write_bandwidth
))
549 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
550 ctf_integer(unsigned long, dirty_ratelimit
, KBps(bdi
->wb
.dirty_ratelimit
))
551 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
552 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
553 KBps(bdi
->wb
.balanced_dirty_ratelimit
))
557 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */
559 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
561 writeback_bdi_dirty_ratelimit
,
563 TP_PROTO(struct backing_dev_info
*bdi
,
564 unsigned long dirty_rate
,
565 unsigned long task_ratelimit
),
567 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
570 ctf_string(bdi
, lttng_bdi_dev_name(bdi
))
571 ctf_integer(unsigned long, write_bw
, KBps(bdi
->write_bandwidth
))
572 ctf_integer(unsigned long, avg_write_bw
, KBps(bdi
->avg_write_bandwidth
))
573 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
574 ctf_integer(unsigned long, dirty_ratelimit
, KBps(bdi
->dirty_ratelimit
))
575 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
576 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
577 KBps(bdi
->balanced_dirty_ratelimit
))
581 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */
583 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
585 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
587 writeback_balance_dirty_pages
,
589 TP_PROTO(struct bdi_writeback
*wb
,
590 unsigned long thresh
,
591 unsigned long bg_thresh
,
593 unsigned long bdi_thresh
,
594 unsigned long bdi_dirty
,
595 unsigned long dirty_ratelimit
,
596 unsigned long task_ratelimit
,
597 unsigned long dirtied
,
598 unsigned long period
,
600 unsigned long start_time
),
602 TP_ARGS(wb
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
603 dirty_ratelimit
, task_ratelimit
,
604 dirtied
, period
, pause
, start_time
608 ctf_string(bdi
, lttng_bdi_dev_name(wb
->bdi
))
609 ctf_integer(unsigned long, limit
, global_dirty_limit
)
610 ctf_integer(unsigned long, setpoint
,
611 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
612 ctf_integer(unsigned long, dirty
, dirty
)
613 ctf_integer(unsigned long, bdi_setpoint
,
614 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
615 bdi_thresh
/ (thresh
+ 1))
616 ctf_integer(unsigned long, bdi_dirty
, bdi_dirty
)
617 ctf_integer(unsigned long, dirty_ratelimit
,
618 KBps(dirty_ratelimit
))
619 ctf_integer(unsigned long, task_ratelimit
,
620 KBps(task_ratelimit
))
621 ctf_integer(unsigned int, dirtied
, dirtied
)
622 ctf_integer(unsigned int, dirtied_pause
,
623 current
->nr_dirtied_pause
)
624 ctf_integer(unsigned long, paused
,
625 (jiffies
- start_time
) * 1000 / HZ
)
626 ctf_integer(long, pause
, pause
* 1000 / HZ
)
627 ctf_integer(unsigned long, period
,
629 ctf_integer(long, think
,
630 current
->dirty_paused_when
== 0 ? 0 :
631 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
635 #else /* #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
637 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
639 writeback_balance_dirty_pages
,
641 TP_PROTO(struct backing_dev_info
*bdi
,
642 unsigned long thresh
,
643 unsigned long bg_thresh
,
645 unsigned long bdi_thresh
,
646 unsigned long bdi_dirty
,
647 unsigned long dirty_ratelimit
,
648 unsigned long task_ratelimit
,
649 unsigned long dirtied
,
650 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
651 unsigned long period
,
654 unsigned long start_time
),
656 TP_ARGS(bdi
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
657 dirty_ratelimit
, task_ratelimit
,
658 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
659 dirtied
, period
, pause
, start_time
661 dirtied
, pause
, start_time
666 ctf_string(bdi
, lttng_bdi_dev_name(bdi
))
667 ctf_integer(unsigned long, limit
, global_dirty_limit
)
668 ctf_integer(unsigned long, setpoint
,
669 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
670 ctf_integer(unsigned long, dirty
, dirty
)
671 ctf_integer(unsigned long, bdi_setpoint
,
672 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
673 bdi_thresh
/ (thresh
+ 1))
674 ctf_integer(unsigned long, bdi_dirty
, bdi_dirty
)
675 ctf_integer(unsigned long, dirty_ratelimit
,
676 KBps(dirty_ratelimit
))
677 ctf_integer(unsigned long, task_ratelimit
,
678 KBps(task_ratelimit
))
679 ctf_integer(unsigned int, dirtied
, dirtied
)
680 ctf_integer(unsigned int, dirtied_pause
,
681 current
->nr_dirtied_pause
)
682 ctf_integer(unsigned long, paused
,
683 (jiffies
- start_time
) * 1000 / HZ
)
684 ctf_integer(long, pause
, pause
* 1000 / HZ
)
685 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
686 ctf_integer(unsigned long, period
,
688 ctf_integer(long, think
,
689 current
->dirty_paused_when
== 0 ? 0 :
690 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
694 #endif /* #else #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
696 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0)) */
698 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,5,0))
699 LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue
,
701 TP_PROTO(struct inode
*inode
),
705 ctf_string(name
, lttng_bdi_dev_name(lttng_inode_to_bdi(inode
)))
706 ctf_integer(unsigned long, ino
, inode
->i_ino
)
707 ctf_integer(unsigned long, state
, inode
->i_state
)
708 ctf_integer(unsigned long, dirtied_when
, inode
->dirtied_when
)
713 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(2,6,37))
714 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template
,
716 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
718 TP_ARGS(usec_timeout
, usec_delayed
),
721 ctf_integer(unsigned int, usec_timeout
, usec_timeout
)
722 ctf_integer(unsigned int, usec_delayed
, usec_delayed
)
726 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_congestion_wait
,
728 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
730 TP_ARGS(usec_timeout
, usec_delayed
)
733 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_wait_iff_congested
,
735 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
737 TP_ARGS(usec_timeout
, usec_delayed
)
741 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
742 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template
,
744 TP_PROTO(struct inode
*inode
,
745 struct writeback_control
*wbc
,
746 unsigned long nr_to_write
749 TP_ARGS(inode
, wbc
, nr_to_write
),
752 ctf_string(name
, lttng_bdi_dev_name(lttng_inode_to_bdi(inode
)))
753 ctf_integer(unsigned long, ino
, inode
->i_ino
)
754 ctf_integer(unsigned long, state
, inode
->i_state
)
755 ctf_integer(unsigned long, dirtied_when
, inode
->dirtied_when
)
756 ctf_integer(unsigned long, writeback_index
,
757 inode
->i_mapping
->writeback_index
)
758 ctf_integer(long, nr_to_write
, nr_to_write
)
759 ctf_integer(unsigned long, wrote
,
760 nr_to_write
- wbc
->nr_to_write
)
764 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,5,0))
765 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode_requeue
,
766 TP_PROTO(struct inode
*inode
,
767 struct writeback_control
*wbc
,
768 unsigned long nr_to_write
),
769 TP_ARGS(inode
, wbc
, nr_to_write
)
773 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode
,
774 TP_PROTO(struct inode
*inode
,
775 struct writeback_control
*wbc
,
776 unsigned long nr_to_write
),
777 TP_ARGS(inode
, wbc
, nr_to_write
)
781 #endif /* LTTNG_TRACE_WRITEBACK_H */
783 /* This part must be outside protection */
784 #include <probes/define_trace.h>