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Fix: writeback instrumentation for 4.2 kernels
[lttng-modules.git] / instrumentation / events / lttng-module / writeback.h
CommitLineData
b87700e3
AG		 1#undef TRACE_SYSTEM
2#define TRACE_SYSTEM writeback
3
3bc29f0a
MD		 4#if !defined(LTTNG_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
5#define LTTNG_TRACE_WRITEBACK_H
b87700e3 6
3bc29f0a 7#include "../../../probes/lttng-tracepoint-event.h"
aa634cd1 8#include <linux/tracepoint.h>
b87700e3
AG		 9#include <linux/backing-dev.h>
10#include <linux/writeback.h>
11#include <linux/version.h>
12
13#ifndef _TRACE_WRITEBACK_DEF_
14#define _TRACE_WRITEBACK_DEF_
99a570c8
MD		 15
16#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0))
b87700e3
AG		 17static inline struct backing_dev_info *inode_to_bdi(struct inode *inode)
18{
19 struct super_block *sb = inode->i_sb;
20
21 if (strcmp(sb->s_type->name, "bdev") == 0)
22 return inode->i_mapping->backing_dev_info;
23
24 return sb->s_bdi;
25}
99a570c8
MD		 26#endif /* #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0)) */
27
b87700e3
AG		 28#endif
29
99a570c8
MD		 30#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
31#define show_inode_state(state) \
32 __print_flags(state, "|", \
33 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
34 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
35 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
36 {I_NEW, "I_NEW"}, \
37 {I_WILL_FREE, "I_WILL_FREE"}, \
38 {I_FREEING, "I_FREEING"}, \
39 {I_CLEAR, "I_CLEAR"}, \
40 {I_SYNC, "I_SYNC"}, \
41 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
42 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
43 {I_REFERENCED, "I_REFERENCED"} \
44 )
45#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
b87700e3
AG		 46#define show_inode_state(state) \
47 __print_flags(state, "|", \
48 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
49 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
50 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
51 {I_NEW, "I_NEW"}, \
52 {I_WILL_FREE, "I_WILL_FREE"}, \
53 {I_FREEING, "I_FREEING"}, \
54 {I_CLEAR, "I_CLEAR"}, \
55 {I_SYNC, "I_SYNC"}, \
56 {I_REFERENCED, "I_REFERENCED"} \
57 )
99a570c8 58#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
b87700e3 59
99a570c8
MD		 60#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
61
62LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
63 TP_PROTO(struct page *page, struct address_space *mapping),
64 TP_ARGS(page, mapping),
f127e61e
MD		 65 TP_FIELDS(
66 ctf_array_text(char, name,
99a570c8 67 mapping ? dev_name(inode_to_bdi(mapping->host)->dev) : "(unknown)", 32)
f127e61e
MD		 68 ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0)
69 ctf_integer(pgoff_t, index, page->index)
99a570c8
MD		 70 )
71)
72
73LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
74 TP_PROTO(struct inode *inode, int flags),
75 TP_ARGS(inode, flags),
f127e61e 76 TP_FIELDS(
99a570c8 77 /* may be called for files on pseudo FSes w/ unregistered bdi */
f127e61e 78 ctf_array_text(char, name,
99a570c8
MD		 79 inode_to_bdi(inode)->dev ?
80 dev_name(inode_to_bdi(inode)->dev) : "(unknown)", 32)
f127e61e
MD		 81 ctf_integer(unsigned long, ino, inode->i_ino)
82 ctf_integer(unsigned long, state, inode->i_state)
83 ctf_integer(unsigned long, flags, flags)
99a570c8
MD		 84 )
85)
86#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
87LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
88 TP_PROTO(struct inode *inode, int flags), \
89 TP_ARGS(inode, flags))
90LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
91LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
92LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty)
93
94LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
95 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
96 TP_ARGS(inode, wbc),
f127e61e
MD		 97 TP_FIELDS(
98 ctf_array_text(char, name,
99a570c8 99 dev_name(inode_to_bdi(inode)->dev), 32)
f127e61e
MD		 100 ctf_integer(unsigned long, ino, inode->i_ino)
101 ctf_integer(int, sync_mode, wbc->sync_mode)
99a570c8
MD		 102 )
103)
104
105#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
106LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
107 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
108 TP_ARGS(inode, wbc))
109LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
110LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
111
112#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
113
aa634cd1
JD		 114LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
115 TP_PROTO(struct page *page, struct address_space *mapping),
116 TP_ARGS(page, mapping),
f127e61e
MD		 117 TP_FIELDS(
118 ctf_array_text(char, name,
aa634cd1 119 mapping ? dev_name(mapping->backing_dev_info->dev) : "(unknown)", 32)
f127e61e
MD		 120 ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0)
121 ctf_integer(pgoff_t, index, page->index)
aa634cd1
JD		 122 )
123)
124
125LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
126 TP_PROTO(struct inode *inode, int flags),
127 TP_ARGS(inode, flags),
f127e61e 128 TP_FIELDS(
aa634cd1 129 /* may be called for files on pseudo FSes w/ unregistered bdi */
f127e61e 130 ctf_array_text(char, name,
aa634cd1 131 inode->i_mapping->backing_dev_info->dev ?
f127e61e
MD		 132 dev_name(inode->i_mapping->backing_dev_info->dev)
133 : "(unknown)", 32)
134 ctf_integer(unsigned long, ino, inode->i_ino)
135 ctf_integer(unsigned long, flags, flags)
aa634cd1
JD		 136 )
137)
138#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
139LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
140 TP_PROTO(struct inode *inode, int flags), \
141 TP_ARGS(inode, flags))
142LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
143LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
144
145LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
146 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
147 TP_ARGS(inode, wbc),
f127e61e
MD		 148 TP_FIELDS(
149 ctf_array_text(char, name,
aa634cd1 150 dev_name(inode->i_mapping->backing_dev_info->dev), 32)
f127e61e
MD		 151 ctf_integer(unsigned long, ino, inode->i_ino)
152 ctf_integer(int, sync_mode, wbc->sync_mode)
aa634cd1
JD		 153 )
154)
155
156#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
157LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
158 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
159 TP_ARGS(inode, wbc))
160LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
161LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
99a570c8 162
aa634cd1
JD		 163#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */
164
99a570c8
MD		 165#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
166
167LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
168 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
169 TP_ARGS(bdi, work),
f127e61e
MD		 170 TP_FIELDS(
171 ctf_array_text(char, name, bdi->dev ? dev_name(bdi->dev) :
99a570c8 172 "(unknown)", 32)
99a570c8
MD		 173 )
174)
175
176#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
177
3bc29f0a 178LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
b87700e3
AG		 179 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
180 TP_ARGS(bdi, work),
f127e61e
MD		 181 TP_FIELDS(
182 ctf_array_text(char, name,
183 dev_name(bdi->dev ? bdi->dev :
b87700e3 184 default_backing_dev_info.dev), 32)
b87700e3 185 )
b87700e3 186)
99a570c8
MD		 187
188#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
189
3bc29f0a
MD		 190#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
191LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
b87700e3
AG		 192 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
193 TP_ARGS(bdi, work))
3bc29f0a
MD		 194LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread)
195LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue)
196LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec)
b87700e3 197#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
3bc29f0a
MD		 198LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start)
199LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written)
200LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait)
b87700e3
AG		 201#endif
202
3bc29f0a 203LTTNG_TRACEPOINT_EVENT(writeback_pages_written,
b87700e3
AG		 204 TP_PROTO(long pages_written),
205 TP_ARGS(pages_written),
f127e61e
MD		 206 TP_FIELDS(
207 ctf_integer(long, pages, pages_written)
208 )
b87700e3
AG		 209)
210
3bc29f0a 211LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
b87700e3
AG		 212 TP_PROTO(struct backing_dev_info *bdi),
213 TP_ARGS(bdi),
f127e61e
MD		 214 TP_FIELDS(
215 ctf_array_text(char, name,
216 dev_name(bdi->dev), 32)
b87700e3
AG		 217 )
218)
59fecd6c 219#undef DEFINE_WRITEBACK_EVENT
b87700e3 220#define DEFINE_WRITEBACK_EVENT(name) \
3bc29f0a 221LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
b87700e3
AG		 222 TP_PROTO(struct backing_dev_info *bdi), \
223 TP_ARGS(bdi))
224
9cf29d3e 225#define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
3bc29f0a 226LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
9cf29d3e
MD		 227 TP_PROTO(struct backing_dev_info *bdi), \
228 TP_ARGS(bdi))
229
b87700e3
AG		 230DEFINE_WRITEBACK_EVENT(writeback_nowork)
231#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
232DEFINE_WRITEBACK_EVENT(writeback_wake_background)
233#endif
234DEFINE_WRITEBACK_EVENT(writeback_wake_thread)
235DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread)
236DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
237DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister)
238DEFINE_WRITEBACK_EVENT(writeback_thread_start)
239DEFINE_WRITEBACK_EVENT(writeback_thread_stop)
240#if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
9cf29d3e
MD		 241DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start)
242DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait)
243
3bc29f0a 244LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written,
b87700e3 245
9cf29d3e 246 writeback_balance_dirty_written,
b87700e3
AG		 247
248 TP_PROTO(struct backing_dev_info *bdi, int written),
249
250 TP_ARGS(bdi, written),
251
f127e61e
MD		 252 TP_FIELDS(
253 ctf_array_text(char, name, dev_name(bdi->dev), 32)
254 ctf_integer(int, written, written)
b87700e3
AG		 255 )
256)
257#endif
258
3bc29f0a 259LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class,
b87700e3
AG		 260 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
261 TP_ARGS(wbc, bdi),
f127e61e
MD		 262 TP_FIELDS(
263 ctf_array_text(char, name, dev_name(bdi->dev), 32)
264 ctf_integer(long, nr_to_write, wbc->nr_to_write)
265 ctf_integer(long, pages_skipped, wbc->pages_skipped)
266 ctf_integer(int, sync_mode, wbc->sync_mode)
267 ctf_integer(int, for_kupdate, wbc->for_kupdate)
268 ctf_integer(int, for_background, wbc->for_background)
269 ctf_integer(int, for_reclaim, wbc->for_reclaim)
270 ctf_integer(int, range_cyclic, wbc->range_cyclic)
b87700e3 271#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
f127e61e
MD		 272 ctf_integer(int, more_io, wbc->more_io)
273 ctf_integer(unsigned long, older_than_this,
274 wbc->older_than_this ? *wbc->older_than_this : 0)
b87700e3 275#endif
f127e61e
MD		 276 ctf_integer(long, range_start, (long) wbc->range_start)
277 ctf_integer(long, range_end, (long) wbc->range_end)
278 )
b87700e3
AG		 279)
280
9cf29d3e 281#undef DEFINE_WBC_EVENT
3bc29f0a
MD		 282#define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
283LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
b87700e3
AG		 284 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
285 TP_ARGS(wbc, bdi))
286#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
3bc29f0a
MD		 287LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start, writeback_wbc_writeback_start)
288LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written, writeback_wbc_writeback_written)
289LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait, writeback_wbc_writeback_wait)
290LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start)
291LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written)
292LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait)
b87700e3 293#endif
3bc29f0a 294LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage)
b87700e3
AG		 295
296#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
3bc29f0a 297LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
b87700e3
AG		 298 TP_PROTO(struct bdi_writeback *wb,
299#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
300 struct wb_writeback_work *work,
301#else
302 unsigned long *older_than_this,
303#endif
304 int moved),
305#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
306 TP_ARGS(wb, work, moved),
307#else
308 TP_ARGS(wb, older_than_this, moved),
309#endif
f127e61e
MD		 310 TP_FIELDS(
311 ctf_array_text(char, name, dev_name(wb->bdi->dev), 32)
b87700e3 312#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
b87700e3 313#else
f127e61e
MD		 314 ctf_integer(unsigned long, older,
315 older_than_this ? *older_than_this : 0)
316 ctf_integer(long, age,
317 older_than_this ?
318 (jiffies - *older_than_this) * 1000 / HZ
319 : -1)
b87700e3 320#endif
f127e61e 321 ctf_integer(int, moved, moved)
b87700e3 322 )
b87700e3
AG		 323)
324
3bc29f0a 325LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
9cf29d3e
MD		 326
327 writeback_global_dirty_state,
b87700e3
AG		 328
329 TP_PROTO(unsigned long background_thresh,
330 unsigned long dirty_thresh
331 ),
332
333 TP_ARGS(background_thresh,
334 dirty_thresh
335 ),
336
f127e61e
MD		 337 TP_FIELDS(
338 ctf_integer(unsigned long, nr_dirty, global_page_state(NR_FILE_DIRTY))
339 ctf_integer(unsigned long, nr_writeback, global_page_state(NR_WRITEBACK))
340 ctf_integer(unsigned long, nr_unstable, global_page_state(NR_UNSTABLE_NFS))
341 ctf_integer(unsigned long, nr_dirtied, global_page_state(NR_DIRTIED))
342 ctf_integer(unsigned long, nr_written, global_page_state(NR_WRITTEN))
343 ctf_integer(unsigned long, background_thresh, background_thresh)
344 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
345 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
b87700e3
AG		 346 )
347)
348#endif
349
350#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
351
352#define KBps(x) ((x) << (PAGE_SHIFT - 10))
353
3bc29f0a 354LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
9cf29d3e
MD		 355
356 writeback_bdi_dirty_ratelimit,
b87700e3
AG		 357
358 TP_PROTO(struct backing_dev_info *bdi,
359 unsigned long dirty_rate,
360 unsigned long task_ratelimit),
361
362 TP_ARGS(bdi, dirty_rate, task_ratelimit),
363
f127e61e
MD		 364 TP_FIELDS(
365 ctf_array_text(char, bdi, dev_name(bdi->dev), 32)
902947a4
MJ		 366#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
367 ctf_integer(unsigned long, write_bw, KBps(bdi->wb.write_bandwidth))
368 ctf_integer(unsigned long, avg_write_bw, KBps(bdi->wb.avg_write_bandwidth))
369#else
f127e61e
MD		 370 ctf_integer(unsigned long, write_bw, KBps(bdi->write_bandwidth))
371 ctf_integer(unsigned long, avg_write_bw, KBps(bdi->avg_write_bandwidth))
902947a4 372#endif
f127e61e 373 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
902947a4
MJ		 374#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
375 ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->wb.dirty_ratelimit))
376#else
f127e61e 377 ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->dirty_ratelimit))
902947a4 378#endif
f127e61e 379 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
902947a4
MJ		 380#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
381 ctf_integer(unsigned long, balanced_dirty_ratelimit,
382 KBps(bdi->wb.balanced_dirty_ratelimit))
383#else
f127e61e 384 ctf_integer(unsigned long, balanced_dirty_ratelimit,
b87700e3 385 KBps(bdi->balanced_dirty_ratelimit))
902947a4 386#endif
b87700e3
AG		 387 )
388)
389
3bc29f0a 390LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
9cf29d3e
MD		 391
392 writeback_balance_dirty_pages,
b87700e3
AG		 393
394 TP_PROTO(struct backing_dev_info *bdi,
395 unsigned long thresh,
396 unsigned long bg_thresh,
397 unsigned long dirty,
398 unsigned long bdi_thresh,
399 unsigned long bdi_dirty,
400 unsigned long dirty_ratelimit,
401 unsigned long task_ratelimit,
402 unsigned long dirtied,
403#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
404 unsigned long period,
405#endif
406 long pause,
407 unsigned long start_time),
408
409 TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
410 dirty_ratelimit, task_ratelimit,
411#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
f127e61e 412 dirtied, period, pause, start_time
b87700e3 413#else
f127e61e 414 dirtied, pause, start_time
b87700e3
AG		 415#endif
416 ),
417
f127e61e
MD		 418 TP_FIELDS(
419 ctf_array_text(char, bdi, dev_name(bdi->dev), 32)
420 ctf_integer(unsigned long, limit, global_dirty_limit)
421 ctf_integer(unsigned long, setpoint,
b87700e3 422 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
f127e61e
MD		 423 ctf_integer(unsigned long, dirty, dirty)
424 ctf_integer(unsigned long, bdi_setpoint,
b87700e3 425 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
f127e61e
MD		 426 bdi_thresh / (thresh + 1))
427 ctf_integer(unsigned long, bdi_dirty, bdi_dirty)
428 ctf_integer(unsigned long, dirty_ratelimit,
429 KBps(dirty_ratelimit))
430 ctf_integer(unsigned long, task_ratelimit,
431 KBps(task_ratelimit))
432 ctf_integer(unsigned int, dirtied, dirtied)
433 ctf_integer(unsigned int, dirtied_pause,
434 current->nr_dirtied_pause)
435 ctf_integer(unsigned long, paused,
436 (jiffies - start_time) * 1000 / HZ)
437 ctf_integer(long, pause, pause * 1000 / HZ)
b87700e3 438#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
f127e61e
MD		 439 ctf_integer(unsigned long, period,
440 period * 1000 / HZ)
441 ctf_integer(long, think,
442 current->dirty_paused_when == 0 ? 0 :
443 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
b87700e3 444#endif
f127e61e 445 )
b87700e3
AG		 446)
447#endif
448
449#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
3bc29f0a 450LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue,
b87700e3
AG		 451
452 TP_PROTO(struct inode *inode),
453 TP_ARGS(inode),
454
f127e61e
MD		 455 TP_FIELDS(
456 ctf_array_text(char, name,
457 dev_name(inode_to_bdi(inode)->dev), 32)
458 ctf_integer(unsigned long, ino, inode->i_ino)
459 ctf_integer(unsigned long, state, inode->i_state)
460 ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
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AG		 461 )
462)
463#endif
464
465#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
3bc29f0a 466LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template,
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AG		 467
468 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
469
470 TP_ARGS(usec_timeout, usec_delayed),
471
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MD		 472 TP_FIELDS(
473 ctf_integer(unsigned int, usec_timeout, usec_timeout)
474 ctf_integer(unsigned int, usec_delayed, usec_delayed)
475 )
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AG		 476)
477
3bc29f0a 478LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_congestion_wait,
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AG		 479
480 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
481
482 TP_ARGS(usec_timeout, usec_delayed)
483)
484
3bc29f0a 485LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_wait_iff_congested,
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AG		 486
487 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
488
489 TP_ARGS(usec_timeout, usec_delayed)
490)
491#endif
492
493#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
3bc29f0a 494LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template,
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AG		 495
496 TP_PROTO(struct inode *inode,
497 struct writeback_control *wbc,
498 unsigned long nr_to_write
499 ),
500
501 TP_ARGS(inode, wbc, nr_to_write),
502
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MD		 503 TP_FIELDS(
504 ctf_array_text(char, name,
505 dev_name(inode_to_bdi(inode)->dev), 32)
506 ctf_integer(unsigned long, ino, inode->i_ino)
507 ctf_integer(unsigned long, state, inode->i_state)
508 ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
509 ctf_integer(unsigned long, writeback_index,
510 inode->i_mapping->writeback_index)
511 ctf_integer(long, nr_to_write, nr_to_write)
512 ctf_integer(unsigned long, wrote,
513 nr_to_write - wbc->nr_to_write)
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AG		 514 )
515)
516
517#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
3bc29f0a 518LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode_requeue,
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AG		 519 TP_PROTO(struct inode *inode,
520 struct writeback_control *wbc,
521 unsigned long nr_to_write),
522 TP_ARGS(inode, wbc, nr_to_write)
523)
524#endif
525
3bc29f0a 526LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode,
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AG		 527 TP_PROTO(struct inode *inode,
528 struct writeback_control *wbc,
529 unsigned long nr_to_write),
530 TP_ARGS(inode, wbc, nr_to_write)
531)
532#endif
533
3bc29f0a 534#endif /* LTTNG_TRACE_WRITEBACK_H */
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AG		 535
536/* This part must be outside protection */
537#include "../../../probes/define_trace.h"
LTTng 2.0/0.x modules
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