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)) */
69 * Keep this macro around to track changes in the valid values for `state`.
70 * Eventually, we will have a enum to describe that field. If the macro is
71 * changed by an upstream kernel, the fact that we have a redefinition here
72 * will generate a compiler warning.
74 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,9,0) || \
75 LTTNG_KERNEL_RANGE(4,14,218, 4,15,0) || \
76 LTTNG_KERNEL_RANGE(4,19,172, 4,20,0) || \
77 LTTNG_KERNEL_RANGE(5,4,94, 5,5,0) || \
78 LTTNG_UBUNTU_KERNEL_RANGE(4,15,18,141, 4,16,0,0))
79 #define show_inode_state(state) \
80 __print_flags(state, "|", \
81 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
82 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
83 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
85 {I_WILL_FREE, "I_WILL_FREE"}, \
86 {I_FREEING, "I_FREEING"}, \
87 {I_CLEAR, "I_CLEAR"}, \
89 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
90 {I_REFERENCED, "I_REFERENCED"} \
92 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0))
93 #define show_inode_state(state) \
94 __print_flags(state, "|", \
95 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
96 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
97 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
99 {I_WILL_FREE, "I_WILL_FREE"}, \
100 {I_FREEING, "I_FREEING"}, \
101 {I_CLEAR, "I_CLEAR"}, \
102 {I_SYNC, "I_SYNC"}, \
103 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
104 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
105 {I_REFERENCED, "I_REFERENCED"} \
107 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0)) */
108 #define show_inode_state(state) \
109 __print_flags(state, "|", \
110 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
111 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
112 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
114 {I_WILL_FREE, "I_WILL_FREE"}, \
115 {I_FREEING, "I_FREEING"}, \
116 {I_CLEAR, "I_CLEAR"}, \
117 {I_SYNC, "I_SYNC"}, \
118 {I_REFERENCED, "I_REFERENCED"} \
120 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0)) */
122 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0))
124 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page
,
125 TP_PROTO(struct page
*page
, struct address_space
*mapping
),
126 TP_ARGS(page
, mapping
),
128 ctf_string(name
, lttng_bdi_dev_name(mapping
? lttng_inode_to_bdi(mapping
->host
) : NULL
))
129 ctf_integer(unsigned long, ino
, mapping
? mapping
->host
->i_ino
: 0)
130 ctf_integer(pgoff_t
, index
, page
->index
)
134 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template
,
135 TP_PROTO(struct inode
*inode
, int flags
),
136 TP_ARGS(inode
, flags
),
138 /* may be called for files on pseudo FSes w/ unregistered bdi */
139 ctf_string(name
, lttng_bdi_dev_name(lttng_inode_to_bdi(inode
)))
140 ctf_integer(unsigned long, ino
, inode
->i_ino
)
141 ctf_integer(unsigned long, state
, inode
->i_state
)
142 ctf_integer(unsigned long, flags
, flags
)
145 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
146 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
147 TP_PROTO(struct inode *inode, int flags), \
148 TP_ARGS(inode, flags))
149 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start
)
150 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode
)
151 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty
)
153 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template
,
154 TP_PROTO(struct inode
*inode
, struct writeback_control
*wbc
),
157 ctf_string(name
, lttng_bdi_dev_name(lttng_inode_to_bdi(inode
)))
158 ctf_integer(unsigned long, ino
, inode
->i_ino
)
159 ctf_integer(int, sync_mode
, wbc
->sync_mode
)
163 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
164 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
165 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
167 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start
)
168 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode
)
170 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0))
172 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page
,
173 TP_PROTO(struct page
*page
, struct address_space
*mapping
),
174 TP_ARGS(page
, mapping
),
176 ctf_string(name
, lttng_bdi_dev_name(mapping
? mapping
->backing_dev_info
: NULL
))
177 ctf_integer(unsigned long, ino
, mapping
? mapping
->host
->i_ino
: 0)
178 ctf_integer(pgoff_t
, index
, page
->index
)
182 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template
,
183 TP_PROTO(struct inode
*inode
, int flags
),
184 TP_ARGS(inode
, flags
),
186 /* may be called for files on pseudo FSes w/ unregistered bdi */
187 ctf_string(name
, lttng_bdi_dev_name(inode
->i_mapping
->backing_dev_info
))
188 ctf_integer(unsigned long, ino
, inode
->i_ino
)
189 ctf_integer(unsigned long, flags
, flags
)
192 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
193 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
194 TP_PROTO(struct inode *inode, int flags), \
195 TP_ARGS(inode, flags))
196 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start
)
197 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode
)
199 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template
,
200 TP_PROTO(struct inode
*inode
, struct writeback_control
*wbc
),
203 ctf_string(name
, lttng_bdi_dev_name(inode
->i_mapping
->backing_dev_info
))
204 ctf_integer(unsigned long, ino
, inode
->i_ino
)
205 ctf_integer(int, sync_mode
, wbc
->sync_mode
)
209 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
210 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
211 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
213 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start
)
214 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode
)
216 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) */
218 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
220 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
221 TP_PROTO(struct bdi_writeback
*wb
, struct wb_writeback_work
*work
),
224 ctf_string(name
, lttng_bdi_dev_name(wb
->bdi
))
230 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class
,
231 TP_PROTO(struct backing_dev_info
*bdi
, struct wb_writeback_work
*work
),
234 ctf_string(name
, lttng_bdi_dev_name(bdi
))
238 #endif /* #else if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
240 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
242 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
243 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
244 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
247 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
249 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
250 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
251 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
254 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
256 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread
)
257 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue
)
258 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec
)
259 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
260 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start
)
261 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written
)
262 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait
)
265 LTTNG_TRACEPOINT_EVENT(writeback_pages_written
,
266 TP_PROTO(long pages_written
),
267 TP_ARGS(pages_written
),
269 ctf_integer(long, pages
, pages_written
)
273 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
275 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
276 TP_PROTO(struct bdi_writeback
*wb
),
279 ctf_string(name
, lttng_bdi_dev_name(wb
->bdi
))
283 #undef DEFINE_WRITEBACK_EVENT
284 #define DEFINE_WRITEBACK_EVENT(name) \
285 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
286 TP_PROTO(struct bdi_writeback *wb), \
289 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
290 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
291 TP_PROTO(struct bdi_writeback *wb), \
294 LTTNG_TRACEPOINT_EVENT(writeback_bdi_register
,
295 TP_PROTO(struct backing_dev_info
*bdi
),
298 ctf_string(name
, lttng_bdi_dev_name(bdi
))
302 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
304 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class
,
305 TP_PROTO(struct backing_dev_info
*bdi
),
308 ctf_string(name
, lttng_bdi_dev_name(bdi
))
312 #undef DEFINE_WRITEBACK_EVENT
313 #define DEFINE_WRITEBACK_EVENT(name) \
314 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
315 TP_PROTO(struct backing_dev_info *bdi), \
318 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
319 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
320 TP_PROTO(struct backing_dev_info *bdi), \
323 DEFINE_WRITEBACK_EVENT(writeback_bdi_register
)
325 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
327 DEFINE_WRITEBACK_EVENT(writeback_nowork
)
328 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(2,6,38))
329 DEFINE_WRITEBACK_EVENT(writeback_wake_background
)
331 DEFINE_WRITEBACK_EVENT(writeback_wake_thread
)
332 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread
)
333 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister
)
334 DEFINE_WRITEBACK_EVENT(writeback_thread_start
)
335 DEFINE_WRITEBACK_EVENT(writeback_thread_stop
)
336 #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
337 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start
, writeback_balance_dirty_start
)
338 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait
, writeback_balance_dirty_wait
)
340 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written
,
342 writeback_balance_dirty_written
,
344 TP_PROTO(struct backing_dev_info
*bdi
, int written
),
346 TP_ARGS(bdi
, written
),
349 ctf_string(name
, lttng_bdi_dev_name(bdi
))
350 ctf_integer(int, written
, written
)
355 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class
,
356 TP_PROTO(struct writeback_control
*wbc
, struct backing_dev_info
*bdi
),
359 ctf_string(name
, lttng_bdi_dev_name(bdi
))
360 ctf_integer(long, nr_to_write
, wbc
->nr_to_write
)
361 ctf_integer(long, pages_skipped
, wbc
->pages_skipped
)
362 ctf_integer(int, sync_mode
, wbc
->sync_mode
)
363 ctf_integer(int, for_kupdate
, wbc
->for_kupdate
)
364 ctf_integer(int, for_background
, wbc
->for_background
)
365 ctf_integer(int, for_reclaim
, wbc
->for_reclaim
)
366 ctf_integer(int, range_cyclic
, wbc
->range_cyclic
)
367 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,1,0))
368 ctf_integer(int, more_io
, wbc
->more_io
)
369 ctf_integer(unsigned long, older_than_this
,
370 wbc
->older_than_this
? *wbc
->older_than_this
: 0)
372 ctf_integer(long, range_start
, (long) wbc
->range_start
)
373 ctf_integer(long, range_end
, (long) wbc
->range_end
)
377 #undef DEFINE_WBC_EVENT
378 #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
379 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
380 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
382 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,1,0))
383 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start
, writeback_wbc_writeback_start
)
384 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written
, writeback_wbc_writeback_written
)
385 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait
, writeback_wbc_writeback_wait
)
386 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start
, writeback_wbc_balance_dirty_start
)
387 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written
, writeback_wbc_balance_dirty_written
)
388 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait
, writeback_wbc_balance_dirty_wait
)
390 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage
, writeback_wbc_writepage
)
392 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,9,0) || \
393 LTTNG_KERNEL_RANGE(5,8,6, 5,9,0) || \
394 LTTNG_KERNEL_RANGE(5,4,62, 5,5,0) || \
395 LTTNG_KERNEL_RANGE(4,19,143, 4,20,0) || \
396 LTTNG_KERNEL_RANGE(4,14,196, 4,15,0) || \
397 LTTNG_KERNEL_RANGE(4,9,235, 4,10,0) || \
398 LTTNG_KERNEL_RANGE(4,4,235, 4,5,0) || \
399 LTTNG_UBUNTU_KERNEL_RANGE(4,15,18,119, 4,16,0,0))
400 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
401 TP_PROTO(struct bdi_writeback
*wb
,
402 struct wb_writeback_work
*work
,
403 unsigned long dirtied_before
,
405 TP_ARGS(wb
, work
, dirtied_before
, moved
),
407 ctf_string(name
, lttng_bdi_dev_name(wb
->bdi
))
408 ctf_integer(unsigned long, older
, dirtied_before
)
409 ctf_integer(int, moved
, moved
)
412 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0))
413 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
414 TP_PROTO(struct bdi_writeback
*wb
,
415 struct wb_writeback_work
*work
,
417 TP_ARGS(wb
, work
, moved
),
419 ctf_string(name
, lttng_bdi_dev_name(wb
->bdi
))
420 ctf_integer(int, moved
, moved
)
423 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
424 LTTNG_TRACEPOINT_EVENT(writeback_queue_io
,
425 TP_PROTO(struct bdi_writeback
*wb
,
426 unsigned long *older_than_this
,
428 TP_ARGS(wb
, older_than_this
, moved
),
430 ctf_string(name
, lttng_bdi_dev_name(wb
->bdi
))
431 ctf_integer(unsigned long, older
,
432 older_than_this
? *older_than_this
: 0)
433 ctf_integer(long, age
,
435 (jiffies
- *older_than_this
) * 1000 / HZ
437 ctf_integer(int, moved
, moved
)
442 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,8,0))
443 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
445 writeback_global_dirty_state
,
447 TP_PROTO(unsigned long background_thresh
,
448 unsigned long dirty_thresh
451 TP_ARGS(background_thresh
,
456 ctf_integer(unsigned long, nr_dirty
, global_node_page_state(NR_FILE_DIRTY
))
457 ctf_integer(unsigned long, nr_writeback
, global_node_page_state(NR_WRITEBACK
))
458 ctf_integer(unsigned long, nr_dirtied
, global_node_page_state(NR_DIRTIED
))
459 ctf_integer(unsigned long, nr_written
, global_node_page_state(NR_WRITTEN
))
460 ctf_integer(unsigned long, background_thresh
, background_thresh
)
461 ctf_integer(unsigned long, dirty_thresh
, dirty_thresh
)
462 ctf_integer(unsigned long, dirty_limit
, global_dirty_limit
)
465 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0))
466 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
468 writeback_global_dirty_state
,
470 TP_PROTO(unsigned long background_thresh
,
471 unsigned long dirty_thresh
474 TP_ARGS(background_thresh
,
479 ctf_integer(unsigned long, nr_dirty
, global_node_page_state(NR_FILE_DIRTY
))
480 ctf_integer(unsigned long, nr_writeback
, global_node_page_state(NR_WRITEBACK
))
481 ctf_integer(unsigned long, nr_unstable
, global_node_page_state(NR_UNSTABLE_NFS
))
482 ctf_integer(unsigned long, nr_dirtied
, global_node_page_state(NR_DIRTIED
))
483 ctf_integer(unsigned long, nr_written
, global_node_page_state(NR_WRITTEN
))
484 ctf_integer(unsigned long, background_thresh
, background_thresh
)
485 ctf_integer(unsigned long, dirty_thresh
, dirty_thresh
)
486 ctf_integer(unsigned long, dirty_limit
, global_dirty_limit
)
489 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
490 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state
,
492 writeback_global_dirty_state
,
494 TP_PROTO(unsigned long background_thresh
,
495 unsigned long dirty_thresh
498 TP_ARGS(background_thresh
,
503 ctf_integer(unsigned long, nr_dirty
, global_page_state(NR_FILE_DIRTY
))
504 ctf_integer(unsigned long, nr_writeback
, global_page_state(NR_WRITEBACK
))
505 ctf_integer(unsigned long, nr_unstable
, global_page_state(NR_UNSTABLE_NFS
))
506 ctf_integer(unsigned long, nr_dirtied
, global_page_state(NR_DIRTIED
))
507 ctf_integer(unsigned long, nr_written
, global_page_state(NR_WRITTEN
))
508 ctf_integer(unsigned long, background_thresh
, background_thresh
)
509 ctf_integer(unsigned long, dirty_thresh
, dirty_thresh
)
510 ctf_integer(unsigned long, dirty_limit
, global_dirty_limit
)
515 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0))
517 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
519 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
521 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
523 writeback_bdi_dirty_ratelimit
,
525 TP_PROTO(struct bdi_writeback
*wb
,
526 unsigned long dirty_rate
,
527 unsigned long task_ratelimit
),
529 TP_ARGS(wb
, dirty_rate
, task_ratelimit
),
532 ctf_string(bdi
, lttng_bdi_dev_name(wb
->bdi
))
533 ctf_integer(unsigned long, write_bw
, KBps(wb
->bdi
->wb
.write_bandwidth
))
534 ctf_integer(unsigned long, avg_write_bw
, KBps(wb
->bdi
->wb
.avg_write_bandwidth
))
535 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
536 ctf_integer(unsigned long, dirty_ratelimit
, KBps(wb
->bdi
->wb
.dirty_ratelimit
))
537 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
538 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
539 KBps(wb
->bdi
->wb
.balanced_dirty_ratelimit
))
543 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0))
545 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
547 writeback_bdi_dirty_ratelimit
,
549 TP_PROTO(struct backing_dev_info
*bdi
,
550 unsigned long dirty_rate
,
551 unsigned long task_ratelimit
),
553 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
556 ctf_string(bdi
, lttng_bdi_dev_name(bdi
))
557 ctf_integer(unsigned long, write_bw
, KBps(bdi
->wb
.write_bandwidth
))
558 ctf_integer(unsigned long, avg_write_bw
, KBps(bdi
->wb
.avg_write_bandwidth
))
559 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
560 ctf_integer(unsigned long, dirty_ratelimit
, KBps(bdi
->wb
.dirty_ratelimit
))
561 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
562 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
563 KBps(bdi
->wb
.balanced_dirty_ratelimit
))
567 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */
569 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit
,
571 writeback_bdi_dirty_ratelimit
,
573 TP_PROTO(struct backing_dev_info
*bdi
,
574 unsigned long dirty_rate
,
575 unsigned long task_ratelimit
),
577 TP_ARGS(bdi
, dirty_rate
, task_ratelimit
),
580 ctf_string(bdi
, lttng_bdi_dev_name(bdi
))
581 ctf_integer(unsigned long, write_bw
, KBps(bdi
->write_bandwidth
))
582 ctf_integer(unsigned long, avg_write_bw
, KBps(bdi
->avg_write_bandwidth
))
583 ctf_integer(unsigned long, dirty_rate
, KBps(dirty_rate
))
584 ctf_integer(unsigned long, dirty_ratelimit
, KBps(bdi
->dirty_ratelimit
))
585 ctf_integer(unsigned long, task_ratelimit
, KBps(task_ratelimit
))
586 ctf_integer(unsigned long, balanced_dirty_ratelimit
,
587 KBps(bdi
->balanced_dirty_ratelimit
))
591 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */
593 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
595 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
597 writeback_balance_dirty_pages
,
599 TP_PROTO(struct bdi_writeback
*wb
,
600 unsigned long thresh
,
601 unsigned long bg_thresh
,
603 unsigned long bdi_thresh
,
604 unsigned long bdi_dirty
,
605 unsigned long dirty_ratelimit
,
606 unsigned long task_ratelimit
,
607 unsigned long dirtied
,
608 unsigned long period
,
610 unsigned long start_time
),
612 TP_ARGS(wb
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
613 dirty_ratelimit
, task_ratelimit
,
614 dirtied
, period
, pause
, start_time
618 ctf_string(bdi
, lttng_bdi_dev_name(wb
->bdi
))
619 ctf_integer(unsigned long, limit
, global_dirty_limit
)
620 ctf_integer(unsigned long, setpoint
,
621 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
622 ctf_integer(unsigned long, dirty
, dirty
)
623 ctf_integer(unsigned long, bdi_setpoint
,
624 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
625 bdi_thresh
/ (thresh
+ 1))
626 ctf_integer(unsigned long, bdi_dirty
, bdi_dirty
)
627 ctf_integer(unsigned long, dirty_ratelimit
,
628 KBps(dirty_ratelimit
))
629 ctf_integer(unsigned long, task_ratelimit
,
630 KBps(task_ratelimit
))
631 ctf_integer(unsigned int, dirtied
, dirtied
)
632 ctf_integer(unsigned int, dirtied_pause
,
633 current
->nr_dirtied_pause
)
634 ctf_integer(unsigned long, paused
,
635 (jiffies
- start_time
) * 1000 / HZ
)
636 ctf_integer(long, pause
, pause
* 1000 / HZ
)
637 ctf_integer(unsigned long, period
,
639 ctf_integer(long, think
,
640 current
->dirty_paused_when
== 0 ? 0 :
641 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
645 #else /* #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
647 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages
,
649 writeback_balance_dirty_pages
,
651 TP_PROTO(struct backing_dev_info
*bdi
,
652 unsigned long thresh
,
653 unsigned long bg_thresh
,
655 unsigned long bdi_thresh
,
656 unsigned long bdi_dirty
,
657 unsigned long dirty_ratelimit
,
658 unsigned long task_ratelimit
,
659 unsigned long dirtied
,
660 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
661 unsigned long period
,
664 unsigned long start_time
),
666 TP_ARGS(bdi
, thresh
, bg_thresh
, dirty
, bdi_thresh
, bdi_dirty
,
667 dirty_ratelimit
, task_ratelimit
,
668 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
669 dirtied
, period
, pause
, start_time
671 dirtied
, pause
, start_time
676 ctf_string(bdi
, lttng_bdi_dev_name(bdi
))
677 ctf_integer(unsigned long, limit
, global_dirty_limit
)
678 ctf_integer(unsigned long, setpoint
,
679 (global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2)
680 ctf_integer(unsigned long, dirty
, dirty
)
681 ctf_integer(unsigned long, bdi_setpoint
,
682 ((global_dirty_limit
+ (thresh
+ bg_thresh
) / 2) / 2) *
683 bdi_thresh
/ (thresh
+ 1))
684 ctf_integer(unsigned long, bdi_dirty
, bdi_dirty
)
685 ctf_integer(unsigned long, dirty_ratelimit
,
686 KBps(dirty_ratelimit
))
687 ctf_integer(unsigned long, task_ratelimit
,
688 KBps(task_ratelimit
))
689 ctf_integer(unsigned int, dirtied
, dirtied
)
690 ctf_integer(unsigned int, dirtied_pause
,
691 current
->nr_dirtied_pause
)
692 ctf_integer(unsigned long, paused
,
693 (jiffies
- start_time
) * 1000 / HZ
)
694 ctf_integer(long, pause
, pause
* 1000 / HZ
)
695 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
696 ctf_integer(unsigned long, period
,
698 ctf_integer(long, think
,
699 current
->dirty_paused_when
== 0 ? 0 :
700 (long)(jiffies
- current
->dirty_paused_when
) * 1000/HZ
)
704 #endif /* #else #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
706 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0)) */
708 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,5,0))
709 LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue
,
711 TP_PROTO(struct inode
*inode
),
715 ctf_string(name
, lttng_bdi_dev_name(lttng_inode_to_bdi(inode
)))
716 ctf_integer(unsigned long, ino
, inode
->i_ino
)
717 ctf_integer(unsigned long, state
, inode
->i_state
)
718 ctf_integer(unsigned long, dirtied_when
, inode
->dirtied_when
)
723 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(2,6,37))
724 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template
,
726 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
728 TP_ARGS(usec_timeout
, usec_delayed
),
731 ctf_integer(unsigned int, usec_timeout
, usec_timeout
)
732 ctf_integer(unsigned int, usec_delayed
, usec_delayed
)
736 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_congestion_wait
,
738 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
740 TP_ARGS(usec_timeout
, usec_delayed
)
743 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template
, writeback_wait_iff_congested
,
745 TP_PROTO(unsigned int usec_timeout
, unsigned int usec_delayed
),
747 TP_ARGS(usec_timeout
, usec_delayed
)
751 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
752 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template
,
754 TP_PROTO(struct inode
*inode
,
755 struct writeback_control
*wbc
,
756 unsigned long nr_to_write
759 TP_ARGS(inode
, wbc
, nr_to_write
),
762 ctf_string(name
, lttng_bdi_dev_name(lttng_inode_to_bdi(inode
)))
763 ctf_integer(unsigned long, ino
, inode
->i_ino
)
764 ctf_integer(unsigned long, state
, inode
->i_state
)
765 ctf_integer(unsigned long, dirtied_when
, inode
->dirtied_when
)
766 ctf_integer(unsigned long, writeback_index
,
767 inode
->i_mapping
->writeback_index
)
768 ctf_integer(long, nr_to_write
, nr_to_write
)
769 ctf_integer(unsigned long, wrote
,
770 nr_to_write
- wbc
->nr_to_write
)
774 #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,5,0))
775 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode_requeue
,
776 TP_PROTO(struct inode
*inode
,
777 struct writeback_control
*wbc
,
778 unsigned long nr_to_write
),
779 TP_ARGS(inode
, wbc
, nr_to_write
)
783 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template
, writeback_single_inode
,
784 TP_PROTO(struct inode
*inode
,
785 struct writeback_control
*wbc
,
786 unsigned long nr_to_write
),
787 TP_ARGS(inode
, wbc
, nr_to_write
)
791 #endif /* LTTNG_TRACE_WRITEBACK_H */
793 /* This part must be outside protection */
794 #include <probes/define_trace.h>