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authorliubo <liubo2009@cn.fujitsu.com>2011-03-24 07:18:59 -0400
committerroot <Chris Mason chris.mason@oracle.com>2011-03-28 05:37:33 -0400
commit1abe9b8a138c9988ba8f7bfded6453649a31541f (patch)
tree9fe0c181e78b075b65f6b1802f0a5092e7afbc6a /include/trace
parent240f62c8756df285da11469259b3900f32883168 (diff)
Btrfs: add initial tracepoint support for btrfs
Tracepoints can provide insight into why btrfs hits bugs and be greatly helpful for debugging, e.g dd-7822 [000] 2121.641088: btrfs_inode_request: root = 5(FS_TREE), gen = 4, ino = 256, blocks = 8, disk_i_size = 0, last_trans = 8, logged_trans = 0 dd-7822 [000] 2121.641100: btrfs_inode_new: root = 5(FS_TREE), gen = 8, ino = 257, blocks = 0, disk_i_size = 0, last_trans = 0, logged_trans = 0 btrfs-transacti-7804 [001] 2146.935420: btrfs_cow_block: root = 2(EXTENT_TREE), refs = 2, orig_buf = 29368320 (orig_level = 0), cow_buf = 29388800 (cow_level = 0) btrfs-transacti-7804 [001] 2146.935473: btrfs_cow_block: root = 1(ROOT_TREE), refs = 2, orig_buf = 29364224 (orig_level = 0), cow_buf = 29392896 (cow_level = 0) btrfs-transacti-7804 [001] 2146.972221: btrfs_transaction_commit: root = 1(ROOT_TREE), gen = 8 flush-btrfs-2-7821 [001] 2155.824210: btrfs_chunk_alloc: root = 3(CHUNK_TREE), offset = 1103101952, size = 1073741824, num_stripes = 1, sub_stripes = 0, type = DATA flush-btrfs-2-7821 [001] 2155.824241: btrfs_cow_block: root = 2(EXTENT_TREE), refs = 2, orig_buf = 29388800 (orig_level = 0), cow_buf = 29396992 (cow_level = 0) flush-btrfs-2-7821 [001] 2155.824255: btrfs_cow_block: root = 4(DEV_TREE), refs = 2, orig_buf = 29372416 (orig_level = 0), cow_buf = 29401088 (cow_level = 0) flush-btrfs-2-7821 [000] 2155.824329: btrfs_cow_block: root = 3(CHUNK_TREE), refs = 2, orig_buf = 20971520 (orig_level = 0), cow_buf = 20975616 (cow_level = 0) btrfs-endio-wri-7800 [001] 2155.898019: btrfs_cow_block: root = 5(FS_TREE), refs = 2, orig_buf = 29384704 (orig_level = 0), cow_buf = 29405184 (cow_level = 0) btrfs-endio-wri-7800 [001] 2155.898043: btrfs_cow_block: root = 7(CSUM_TREE), refs = 2, orig_buf = 29376512 (orig_level = 0), cow_buf = 29409280 (cow_level = 0) Here is what I have added: 1) ordere_extent: btrfs_ordered_extent_add btrfs_ordered_extent_remove btrfs_ordered_extent_start btrfs_ordered_extent_put These provide critical information to understand how ordered_extents are updated. 2) extent_map: btrfs_get_extent extent_map is used in both read and write cases, and it is useful for tracking how btrfs specific IO is running. 3) writepage: __extent_writepage btrfs_writepage_end_io_hook Pages are cirtical resourses and produce a lot of corner cases during writeback, so it is valuable to know how page is written to disk. 4) inode: btrfs_inode_new btrfs_inode_request btrfs_inode_evict These can show where and when a inode is created, when a inode is evicted. 5) sync: btrfs_sync_file btrfs_sync_fs These show sync arguments. 6) transaction: btrfs_transaction_commit In transaction based filesystem, it will be useful to know the generation and who does commit. 7) back reference and cow: btrfs_delayed_tree_ref btrfs_delayed_data_ref btrfs_delayed_ref_head btrfs_cow_block Btrfs natively supports back references, these tracepoints are helpful on understanding btrfs's COW mechanism. 8) chunk: btrfs_chunk_alloc btrfs_chunk_free Chunk is a link between physical offset and logical offset, and stands for space infomation in btrfs, and these are helpful on tracing space things. 9) reserved_extent: btrfs_reserved_extent_alloc btrfs_reserved_extent_free These can show how btrfs uses its space. Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/btrfs.h667
1 files changed, 667 insertions, 0 deletions
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
new file mode 100644
index 000000000000..f445cff66ab7
--- /dev/null
+++ b/include/trace/events/btrfs.h
@@ -0,0 +1,667 @@
1#undef TRACE_SYSTEM
2#define TRACE_SYSTEM btrfs
3
4#if !defined(_TRACE_BTRFS_H) || defined(TRACE_HEADER_MULTI_READ)
5#define _TRACE_BTRFS_H
6
7#include <linux/writeback.h>
8#include <linux/tracepoint.h>
9
10struct btrfs_root;
11struct btrfs_fs_info;
12struct btrfs_inode;
13struct extent_map;
14struct btrfs_ordered_extent;
15struct btrfs_delayed_ref_node;
16struct btrfs_delayed_tree_ref;
17struct btrfs_delayed_data_ref;
18struct btrfs_delayed_ref_head;
19struct map_lookup;
20struct extent_buffer;
21
22#define show_ref_type(type) \
23 __print_symbolic(type, \
24 { BTRFS_TREE_BLOCK_REF_KEY, "TREE_BLOCK_REF" }, \
25 { BTRFS_EXTENT_DATA_REF_KEY, "EXTENT_DATA_REF" }, \
26 { BTRFS_EXTENT_REF_V0_KEY, "EXTENT_REF_V0" }, \
27 { BTRFS_SHARED_BLOCK_REF_KEY, "SHARED_BLOCK_REF" }, \
28 { BTRFS_SHARED_DATA_REF_KEY, "SHARED_DATA_REF" })
29
30#define __show_root_type(obj) \
31 __print_symbolic(obj, \
32 { BTRFS_ROOT_TREE_OBJECTID, "ROOT_TREE" }, \
33 { BTRFS_EXTENT_TREE_OBJECTID, "EXTENT_TREE" }, \
34 { BTRFS_CHUNK_TREE_OBJECTID, "CHUNK_TREE" }, \
35 { BTRFS_DEV_TREE_OBJECTID, "DEV_TREE" }, \
36 { BTRFS_FS_TREE_OBJECTID, "FS_TREE" }, \
37 { BTRFS_ROOT_TREE_DIR_OBJECTID, "ROOT_TREE_DIR" }, \
38 { BTRFS_CSUM_TREE_OBJECTID, "CSUM_TREE" }, \
39 { BTRFS_TREE_LOG_OBJECTID, "TREE_LOG" }, \
40 { BTRFS_TREE_RELOC_OBJECTID, "TREE_RELOC" }, \
41 { BTRFS_DATA_RELOC_TREE_OBJECTID, "DATA_RELOC_TREE" })
42
43#define show_root_type(obj) \
44 obj, ((obj >= BTRFS_DATA_RELOC_TREE_OBJECTID) || \
45 (obj <= BTRFS_CSUM_TREE_OBJECTID )) ? __show_root_type(obj) : "-"
46
47TRACE_EVENT(btrfs_transaction_commit,
48
49 TP_PROTO(struct btrfs_root *root),
50
51 TP_ARGS(root),
52
53 TP_STRUCT__entry(
54 __field( u64, generation )
55 __field( u64, root_objectid )
56 ),
57
58 TP_fast_assign(
59 __entry->generation = root->fs_info->generation;
60 __entry->root_objectid = root->root_key.objectid;
61 ),
62
63 TP_printk("root = %llu(%s), gen = %llu",
64 show_root_type(__entry->root_objectid),
65 (unsigned long long)__entry->generation)
66);
67
68DECLARE_EVENT_CLASS(btrfs__inode,
69
70 TP_PROTO(struct inode *inode),
71
72 TP_ARGS(inode),
73
74 TP_STRUCT__entry(
75 __field( ino_t, ino )
76 __field( blkcnt_t, blocks )
77 __field( u64, disk_i_size )
78 __field( u64, generation )
79 __field( u64, last_trans )
80 __field( u64, logged_trans )
81 __field( u64, root_objectid )
82 ),
83
84 TP_fast_assign(
85 __entry->ino = inode->i_ino;
86 __entry->blocks = inode->i_blocks;
87 __entry->disk_i_size = BTRFS_I(inode)->disk_i_size;
88 __entry->generation = BTRFS_I(inode)->generation;
89 __entry->last_trans = BTRFS_I(inode)->last_trans;
90 __entry->logged_trans = BTRFS_I(inode)->logged_trans;
91 __entry->root_objectid =
92 BTRFS_I(inode)->root->root_key.objectid;
93 ),
94
95 TP_printk("root = %llu(%s), gen = %llu, ino = %lu, blocks = %llu, "
96 "disk_i_size = %llu, last_trans = %llu, logged_trans = %llu",
97 show_root_type(__entry->root_objectid),
98 (unsigned long long)__entry->generation,
99 (unsigned long)__entry->ino,
100 (unsigned long long)__entry->blocks,
101 (unsigned long long)__entry->disk_i_size,
102 (unsigned long long)__entry->last_trans,
103 (unsigned long long)__entry->logged_trans)
104);
105
106DEFINE_EVENT(btrfs__inode, btrfs_inode_new,
107
108 TP_PROTO(struct inode *inode),
109
110 TP_ARGS(inode)
111);
112
113DEFINE_EVENT(btrfs__inode, btrfs_inode_request,
114
115 TP_PROTO(struct inode *inode),
116
117 TP_ARGS(inode)
118);
119
120DEFINE_EVENT(btrfs__inode, btrfs_inode_evict,
121
122 TP_PROTO(struct inode *inode),
123
124 TP_ARGS(inode)
125);
126
127#define __show_map_type(type) \
128 __print_symbolic(type, \
129 { EXTENT_MAP_LAST_BYTE, "LAST_BYTE" }, \
130 { EXTENT_MAP_HOLE, "HOLE" }, \
131 { EXTENT_MAP_INLINE, "INLINE" }, \
132 { EXTENT_MAP_DELALLOC, "DELALLOC" })
133
134#define show_map_type(type) \
135 type, (type >= EXTENT_MAP_LAST_BYTE) ? "-" : __show_map_type(type)
136
137#define show_map_flags(flag) \
138 __print_flags(flag, "|", \
139 { EXTENT_FLAG_PINNED, "PINNED" }, \
140 { EXTENT_FLAG_COMPRESSED, "COMPRESSED" }, \
141 { EXTENT_FLAG_VACANCY, "VACANCY" }, \
142 { EXTENT_FLAG_PREALLOC, "PREALLOC" })
143
144TRACE_EVENT(btrfs_get_extent,
145
146 TP_PROTO(struct btrfs_root *root, struct extent_map *map),
147
148 TP_ARGS(root, map),
149
150 TP_STRUCT__entry(
151 __field( u64, root_objectid )
152 __field( u64, start )
153 __field( u64, len )
154 __field( u64, orig_start )
155 __field( u64, block_start )
156 __field( u64, block_len )
157 __field( unsigned long, flags )
158 __field( int, refs )
159 __field( unsigned int, compress_type )
160 ),
161
162 TP_fast_assign(
163 __entry->root_objectid = root->root_key.objectid;
164 __entry->start = map->start;
165 __entry->len = map->len;
166 __entry->orig_start = map->orig_start;
167 __entry->block_start = map->block_start;
168 __entry->block_len = map->block_len;
169 __entry->flags = map->flags;
170 __entry->refs = atomic_read(&map->refs);
171 __entry->compress_type = map->compress_type;
172 ),
173
174 TP_printk("root = %llu(%s), start = %llu, len = %llu, "
175 "orig_start = %llu, block_start = %llu(%s), "
176 "block_len = %llu, flags = %s, refs = %u, "
177 "compress_type = %u",
178 show_root_type(__entry->root_objectid),
179 (unsigned long long)__entry->start,
180 (unsigned long long)__entry->len,
181 (unsigned long long)__entry->orig_start,
182 show_map_type(__entry->block_start),
183 (unsigned long long)__entry->block_len,
184 show_map_flags(__entry->flags),
185 __entry->refs, __entry->compress_type)
186);
187
188#define show_ordered_flags(flags) \
189 __print_symbolic(flags, \
190 { BTRFS_ORDERED_IO_DONE, "IO_DONE" }, \
191 { BTRFS_ORDERED_COMPLETE, "COMPLETE" }, \
192 { BTRFS_ORDERED_NOCOW, "NOCOW" }, \
193 { BTRFS_ORDERED_COMPRESSED, "COMPRESSED" }, \
194 { BTRFS_ORDERED_PREALLOC, "PREALLOC" }, \
195 { BTRFS_ORDERED_DIRECT, "DIRECT" })
196
197DECLARE_EVENT_CLASS(btrfs__ordered_extent,
198
199 TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
200
201 TP_ARGS(inode, ordered),
202
203 TP_STRUCT__entry(
204 __field( ino_t, ino )
205 __field( u64, file_offset )
206 __field( u64, start )
207 __field( u64, len )
208 __field( u64, disk_len )
209 __field( u64, bytes_left )
210 __field( unsigned long, flags )
211 __field( int, compress_type )
212 __field( int, refs )
213 __field( u64, root_objectid )
214 ),
215
216 TP_fast_assign(
217 __entry->ino = inode->i_ino;
218 __entry->file_offset = ordered->file_offset;
219 __entry->start = ordered->start;
220 __entry->len = ordered->len;
221 __entry->disk_len = ordered->disk_len;
222 __entry->bytes_left = ordered->bytes_left;
223 __entry->flags = ordered->flags;
224 __entry->compress_type = ordered->compress_type;
225 __entry->refs = atomic_read(&ordered->refs);
226 __entry->root_objectid =
227 BTRFS_I(inode)->root->root_key.objectid;
228 ),
229
230 TP_printk("root = %llu(%s), ino = %llu, file_offset = %llu, "
231 "start = %llu, len = %llu, disk_len = %llu, "
232 "bytes_left = %llu, flags = %s, compress_type = %d, "
233 "refs = %d",
234 show_root_type(__entry->root_objectid),
235 (unsigned long long)__entry->ino,
236 (unsigned long long)__entry->file_offset,
237 (unsigned long long)__entry->start,
238 (unsigned long long)__entry->len,
239 (unsigned long long)__entry->disk_len,
240 (unsigned long long)__entry->bytes_left,
241 show_ordered_flags(__entry->flags),
242 __entry->compress_type, __entry->refs)
243);
244
245DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_add,
246
247 TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
248
249 TP_ARGS(inode, ordered)
250);
251
252DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_remove,
253
254 TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
255
256 TP_ARGS(inode, ordered)
257);
258
259DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_start,
260
261 TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
262
263 TP_ARGS(inode, ordered)
264);
265
266DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_put,
267
268 TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
269
270 TP_ARGS(inode, ordered)
271);
272
273DECLARE_EVENT_CLASS(btrfs__writepage,
274
275 TP_PROTO(struct page *page, struct inode *inode,
276 struct writeback_control *wbc),
277
278 TP_ARGS(page, inode, wbc),
279
280 TP_STRUCT__entry(
281 __field( ino_t, ino )
282 __field( pgoff_t, index )
283 __field( long, nr_to_write )
284 __field( long, pages_skipped )
285 __field( loff_t, range_start )
286 __field( loff_t, range_end )
287 __field( char, nonblocking )
288 __field( char, for_kupdate )
289 __field( char, for_reclaim )
290 __field( char, range_cyclic )
291 __field( pgoff_t, writeback_index )
292 __field( u64, root_objectid )
293 ),
294
295 TP_fast_assign(
296 __entry->ino = inode->i_ino;
297 __entry->index = page->index;
298 __entry->nr_to_write = wbc->nr_to_write;
299 __entry->pages_skipped = wbc->pages_skipped;
300 __entry->range_start = wbc->range_start;
301 __entry->range_end = wbc->range_end;
302 __entry->nonblocking = wbc->nonblocking;
303 __entry->for_kupdate = wbc->for_kupdate;
304 __entry->for_reclaim = wbc->for_reclaim;
305 __entry->range_cyclic = wbc->range_cyclic;
306 __entry->writeback_index = inode->i_mapping->writeback_index;
307 __entry->root_objectid =
308 BTRFS_I(inode)->root->root_key.objectid;
309 ),
310
311 TP_printk("root = %llu(%s), ino = %lu, page_index = %lu, "
312 "nr_to_write = %ld, pages_skipped = %ld, range_start = %llu, "
313 "range_end = %llu, nonblocking = %d, for_kupdate = %d, "
314 "for_reclaim = %d, range_cyclic = %d, writeback_index = %lu",
315 show_root_type(__entry->root_objectid),
316 (unsigned long)__entry->ino, __entry->index,
317 __entry->nr_to_write, __entry->pages_skipped,
318 __entry->range_start, __entry->range_end,
319 __entry->nonblocking, __entry->for_kupdate,
320 __entry->for_reclaim, __entry->range_cyclic,
321 (unsigned long)__entry->writeback_index)
322);
323
324DEFINE_EVENT(btrfs__writepage, __extent_writepage,
325
326 TP_PROTO(struct page *page, struct inode *inode,
327 struct writeback_control *wbc),
328
329 TP_ARGS(page, inode, wbc)
330);
331
332TRACE_EVENT(btrfs_writepage_end_io_hook,
333
334 TP_PROTO(struct page *page, u64 start, u64 end, int uptodate),
335
336 TP_ARGS(page, start, end, uptodate),
337
338 TP_STRUCT__entry(
339 __field( ino_t, ino )
340 __field( pgoff_t, index )
341 __field( u64, start )
342 __field( u64, end )
343 __field( int, uptodate )
344 __field( u64, root_objectid )
345 ),
346
347 TP_fast_assign(
348 __entry->ino = page->mapping->host->i_ino;
349 __entry->index = page->index;
350 __entry->start = start;
351 __entry->end = end;
352 __entry->uptodate = uptodate;
353 __entry->root_objectid =
354 BTRFS_I(page->mapping->host)->root->root_key.objectid;
355 ),
356
357 TP_printk("root = %llu(%s), ino = %lu, page_index = %lu, start = %llu, "
358 "end = %llu, uptodate = %d",
359 show_root_type(__entry->root_objectid),
360 (unsigned long)__entry->ino, (unsigned long)__entry->index,
361 (unsigned long long)__entry->start,
362 (unsigned long long)__entry->end, __entry->uptodate)
363);
364
365TRACE_EVENT(btrfs_sync_file,
366
367 TP_PROTO(struct file *file, int datasync),
368
369 TP_ARGS(file, datasync),
370
371 TP_STRUCT__entry(
372 __field( ino_t, ino )
373 __field( ino_t, parent )
374 __field( int, datasync )
375 __field( u64, root_objectid )
376 ),
377
378 TP_fast_assign(
379 struct dentry *dentry = file->f_path.dentry;
380 struct inode *inode = dentry->d_inode;
381
382 __entry->ino = inode->i_ino;
383 __entry->parent = dentry->d_parent->d_inode->i_ino;
384 __entry->datasync = datasync;
385 __entry->root_objectid =
386 BTRFS_I(inode)->root->root_key.objectid;
387 ),
388
389 TP_printk("root = %llu(%s), ino = %ld, parent = %ld, datasync = %d",
390 show_root_type(__entry->root_objectid),
391 (unsigned long)__entry->ino, (unsigned long)__entry->parent,
392 __entry->datasync)
393);
394
395TRACE_EVENT(btrfs_sync_fs,
396
397 TP_PROTO(int wait),
398
399 TP_ARGS(wait),
400
401 TP_STRUCT__entry(
402 __field( int, wait )
403 ),
404
405 TP_fast_assign(
406 __entry->wait = wait;
407 ),
408
409 TP_printk("wait = %d", __entry->wait)
410);
411
412#define show_ref_action(action) \
413 __print_symbolic(action, \
414 { BTRFS_ADD_DELAYED_REF, "ADD_DELAYED_REF" }, \
415 { BTRFS_DROP_DELAYED_REF, "DROP_DELAYED_REF" }, \
416 { BTRFS_ADD_DELAYED_EXTENT, "ADD_DELAYED_EXTENT" }, \
417 { BTRFS_UPDATE_DELAYED_HEAD, "UPDATE_DELAYED_HEAD" })
418
419
420TRACE_EVENT(btrfs_delayed_tree_ref,
421
422 TP_PROTO(struct btrfs_delayed_ref_node *ref,
423 struct btrfs_delayed_tree_ref *full_ref,
424 int action),
425
426 TP_ARGS(ref, full_ref, action),
427
428 TP_STRUCT__entry(
429 __field( u64, bytenr )
430 __field( u64, num_bytes )
431 __field( int, action )
432 __field( u64, parent )
433 __field( u64, ref_root )
434 __field( int, level )
435 __field( int, type )
436 ),
437
438 TP_fast_assign(
439 __entry->bytenr = ref->bytenr;
440 __entry->num_bytes = ref->num_bytes;
441 __entry->action = action;
442 __entry->parent = full_ref->parent;
443 __entry->ref_root = full_ref->root;
444 __entry->level = full_ref->level;
445 __entry->type = ref->type;
446 ),
447
448 TP_printk("bytenr = %llu, num_bytes = %llu, action = %s, "
449 "parent = %llu(%s), ref_root = %llu(%s), level = %d, "
450 "type = %s",
451 (unsigned long long)__entry->bytenr,
452 (unsigned long long)__entry->num_bytes,
453 show_ref_action(__entry->action),
454 show_root_type(__entry->parent),
455 show_root_type(__entry->ref_root),
456 __entry->level, show_ref_type(__entry->type))
457);
458
459TRACE_EVENT(btrfs_delayed_data_ref,
460
461 TP_PROTO(struct btrfs_delayed_ref_node *ref,
462 struct btrfs_delayed_data_ref *full_ref,
463 int action),
464
465 TP_ARGS(ref, full_ref, action),
466
467 TP_STRUCT__entry(
468 __field( u64, bytenr )
469 __field( u64, num_bytes )
470 __field( int, action )
471 __field( u64, parent )
472 __field( u64, ref_root )
473 __field( u64, owner )
474 __field( u64, offset )
475 __field( int, type )
476 ),
477
478 TP_fast_assign(
479 __entry->bytenr = ref->bytenr;
480 __entry->num_bytes = ref->num_bytes;
481 __entry->action = action;
482 __entry->parent = full_ref->parent;
483 __entry->ref_root = full_ref->root;
484 __entry->owner = full_ref->objectid;
485 __entry->offset = full_ref->offset;
486 __entry->type = ref->type;
487 ),
488
489 TP_printk("bytenr = %llu, num_bytes = %llu, action = %s, "
490 "parent = %llu(%s), ref_root = %llu(%s), owner = %llu, "
491 "offset = %llu, type = %s",
492 (unsigned long long)__entry->bytenr,
493 (unsigned long long)__entry->num_bytes,
494 show_ref_action(__entry->action),
495 show_root_type(__entry->parent),
496 show_root_type(__entry->ref_root),
497 (unsigned long long)__entry->owner,
498 (unsigned long long)__entry->offset,
499 show_ref_type(__entry->type))
500);
501
502TRACE_EVENT(btrfs_delayed_ref_head,
503
504 TP_PROTO(struct btrfs_delayed_ref_node *ref,
505 struct btrfs_delayed_ref_head *head_ref,
506 int action),
507
508 TP_ARGS(ref, head_ref, action),
509
510 TP_STRUCT__entry(
511 __field( u64, bytenr )
512 __field( u64, num_bytes )
513 __field( int, action )
514 __field( int, is_data )
515 ),
516
517 TP_fast_assign(
518 __entry->bytenr = ref->bytenr;
519 __entry->num_bytes = ref->num_bytes;
520 __entry->action = action;
521 __entry->is_data = head_ref->is_data;
522 ),
523
524 TP_printk("bytenr = %llu, num_bytes = %llu, action = %s, is_data = %d",
525 (unsigned long long)__entry->bytenr,
526 (unsigned long long)__entry->num_bytes,
527 show_ref_action(__entry->action),
528 __entry->is_data)
529);
530
531#define show_chunk_type(type) \
532 __print_flags(type, "|", \
533 { BTRFS_BLOCK_GROUP_DATA, "DATA" }, \
534 { BTRFS_BLOCK_GROUP_SYSTEM, "SYSTEM"}, \
535 { BTRFS_BLOCK_GROUP_METADATA, "METADATA"}, \
536 { BTRFS_BLOCK_GROUP_RAID0, "RAID0" }, \
537 { BTRFS_BLOCK_GROUP_RAID1, "RAID1" }, \
538 { BTRFS_BLOCK_GROUP_DUP, "DUP" }, \
539 { BTRFS_BLOCK_GROUP_RAID10, "RAID10"})
540
541DECLARE_EVENT_CLASS(btrfs__chunk,
542
543 TP_PROTO(struct btrfs_root *root, struct map_lookup *map,
544 u64 offset, u64 size),
545
546 TP_ARGS(root, map, offset, size),
547
548 TP_STRUCT__entry(
549 __field( int, num_stripes )
550 __field( u64, type )
551 __field( int, sub_stripes )
552 __field( u64, offset )
553 __field( u64, size )
554 __field( u64, root_objectid )
555 ),
556
557 TP_fast_assign(
558 __entry->num_stripes = map->num_stripes;
559 __entry->type = map->type;
560 __entry->sub_stripes = map->sub_stripes;
561 __entry->offset = offset;
562 __entry->size = size;
563 __entry->root_objectid = root->root_key.objectid;
564 ),
565
566 TP_printk("root = %llu(%s), offset = %llu, size = %llu, "
567 "num_stripes = %d, sub_stripes = %d, type = %s",
568 show_root_type(__entry->root_objectid),
569 (unsigned long long)__entry->offset,
570 (unsigned long long)__entry->size,
571 __entry->num_stripes, __entry->sub_stripes,
572 show_chunk_type(__entry->type))
573);
574
575DEFINE_EVENT(btrfs__chunk, btrfs_chunk_alloc,
576
577 TP_PROTO(struct btrfs_root *root, struct map_lookup *map,
578 u64 offset, u64 size),
579
580 TP_ARGS(root, map, offset, size)
581);
582
583DEFINE_EVENT(btrfs__chunk, btrfs_chunk_free,
584
585 TP_PROTO(struct btrfs_root *root, struct map_lookup *map,
586 u64 offset, u64 size),
587
588 TP_ARGS(root, map, offset, size)
589);
590
591TRACE_EVENT(btrfs_cow_block,
592
593 TP_PROTO(struct btrfs_root *root, struct extent_buffer *buf,
594 struct extent_buffer *cow),
595
596 TP_ARGS(root, buf, cow),
597
598 TP_STRUCT__entry(
599 __field( u64, root_objectid )
600 __field( u64, buf_start )
601 __field( int, refs )
602 __field( u64, cow_start )
603 __field( int, buf_level )
604 __field( int, cow_level )
605 ),
606
607 TP_fast_assign(
608 __entry->root_objectid = root->root_key.objectid;
609 __entry->buf_start = buf->start;
610 __entry->refs = atomic_read(&buf->refs);
611 __entry->cow_start = cow->start;
612 __entry->buf_level = btrfs_header_level(buf);
613 __entry->cow_level = btrfs_header_level(cow);
614 ),
615
616 TP_printk("root = %llu(%s), refs = %d, orig_buf = %llu "
617 "(orig_level = %d), cow_buf = %llu (cow_level = %d)",
618 show_root_type(__entry->root_objectid),
619 __entry->refs,
620 (unsigned long long)__entry->buf_start,
621 __entry->buf_level,
622 (unsigned long long)__entry->cow_start,
623 __entry->cow_level)
624);
625
626DECLARE_EVENT_CLASS(btrfs__reserved_extent,
627
628 TP_PROTO(struct btrfs_root *root, u64 start, u64 len),
629
630 TP_ARGS(root, start, len),
631
632 TP_STRUCT__entry(
633 __field( u64, root_objectid )
634 __field( u64, start )
635 __field( u64, len )
636 ),
637
638 TP_fast_assign(
639 __entry->root_objectid = root->root_key.objectid;
640 __entry->start = start;
641 __entry->len = len;
642 ),
643
644 TP_printk("root = %llu(%s), start = %llu, len = %llu",
645 show_root_type(__entry->root_objectid),
646 (unsigned long long)__entry->start,
647 (unsigned long long)__entry->len)
648);
649
650DEFINE_EVENT(btrfs__reserved_extent, btrfs_reserved_extent_alloc,
651
652 TP_PROTO(struct btrfs_root *root, u64 start, u64 len),
653
654 TP_ARGS(root, start, len)
655);
656
657DEFINE_EVENT(btrfs__reserved_extent, btrfs_reserved_extent_free,
658
659 TP_PROTO(struct btrfs_root *root, u64 start, u64 len),
660
661 TP_ARGS(root, start, len)
662);
663
664#endif /* _TRACE_BTRFS_H */
665
666/* This part must be outside protection */
667#include <trace/define_trace.h>
generated by cgit v1.2.2 (git 2.25.0) at 2026-04-23 09:17:14 -0400