include/trace/events/bcache.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM bcache
   3
   4 #if !defined(_TRACE_BCACHE_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define _TRACE_BCACHE_H
   6
   7 #include <linux/tracepoint.h>
   8
   9 DECLARE_EVENT_CLASS(bcache_request,
  10         TP_PROTO(struct bcache_device *d, struct bio *bio),
  11         TP_ARGS(d, bio),
  12
  13         TP_STRUCT__entry(
  14                 __field(dev_t,          dev                     )
  15                 __field(unsigned int,   orig_major              )
  16                 __field(unsigned int,   orig_minor              )
  17                 __field(sector_t,       sector                  )
  18                 __field(dev_t,          orig_sector             )
  19                 __field(unsigned int,   nr_sector               )
  20                 __array(char,           rwbs,   6               )
  21         ),
  22
  23         TP_fast_assign(
  24                 __entry->dev            = bio->bi_bdev->bd_dev;
  25                 __entry->orig_major     = d->disk->major;
  26                 __entry->orig_minor     = d->disk->first_minor;
  27                 __entry->sector         = bio->bi_iter.bi_sector;
  28                 __entry->orig_sector    = bio->bi_iter.bi_sector - 16;
  29                 __entry->nr_sector      = bio->bi_iter.bi_size >> 9;
  30                 blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_rw,
  31                               bio->bi_iter.bi_size);
  32         ),
  33
  34         TP_printk("%d,%d %s %llu + %u (from %d,%d @ %llu)",
  35                   MAJOR(__entry->dev), MINOR(__entry->dev),
  36                   __entry->rwbs, (unsigned long long)__entry->sector,
  37                   __entry->nr_sector, __entry->orig_major, __entry->orig_minor,
  38                   (unsigned long long)__entry->orig_sector)
  39 );
  40
  41 DECLARE_EVENT_CLASS(bkey,
  42         TP_PROTO(struct bkey *k),
  43         TP_ARGS(k),
  44
  45         TP_STRUCT__entry(
  46                 __field(u32,    size                            )
  47                 __field(u32,    inode                           )
  48                 __field(u64,    offset                          )
  49                 __field(bool,   dirty                           )
  50         ),
  51
  52         TP_fast_assign(
  53                 __entry->inode  = KEY_INODE(k);
  54                 __entry->offset = KEY_OFFSET(k);
  55                 __entry->size   = KEY_SIZE(k);
  56                 __entry->dirty  = KEY_DIRTY(k);
  57         ),
  58
  59         TP_printk("%u:%llu len %u dirty %u", __entry->inode,
  60                   __entry->offset, __entry->size, __entry->dirty)
  61 );
  62
  63 DECLARE_EVENT_CLASS(btree_node,
  64         TP_PROTO(struct btree *b),
  65         TP_ARGS(b),
  66
  67         TP_STRUCT__entry(
  68                 __field(size_t,         bucket                  )
  69         ),
  70
  71         TP_fast_assign(
  72                 __entry->bucket = PTR_BUCKET_NR(b->c, &b->key, 0);
  73         ),
  74
  75         TP_printk("bucket %zu", __entry->bucket)
  76 );
  77
  78 /* request.c */
  79
  80 DEFINE_EVENT(bcache_request, bcache_request_start,
  81         TP_PROTO(struct bcache_device *d, struct bio *bio),
  82         TP_ARGS(d, bio)
  83 );
  84
  85 DEFINE_EVENT(bcache_request, bcache_request_end,
  86         TP_PROTO(struct bcache_device *d, struct bio *bio),
  87         TP_ARGS(d, bio)
  88 );
  89
  90 DECLARE_EVENT_CLASS(bcache_bio,
  91         TP_PROTO(struct bio *bio),
  92         TP_ARGS(bio),
  93
  94         TP_STRUCT__entry(
  95                 __field(dev_t,          dev                     )
  96                 __field(sector_t,       sector                  )
  97                 __field(unsigned int,   nr_sector               )
  98                 __array(char,           rwbs,   6               )
  99         ),
 100
 101         TP_fast_assign(
 102                 __entry->dev            = bio->bi_bdev->bd_dev;
 103                 __entry->sector         = bio->bi_iter.bi_sector;
 104                 __entry->nr_sector      = bio->bi_iter.bi_size >> 9;
 105                 blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_rw,
 106                               bio->bi_iter.bi_size);
 107         ),
 108
 109         TP_printk("%d,%d  %s %llu + %u",
 110                   MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
 111                   (unsigned long long)__entry->sector, __entry->nr_sector)
 112 );
 113
 114 DEFINE_EVENT(bcache_bio, bcache_bypass_sequential,
 115         TP_PROTO(struct bio *bio),
 116         TP_ARGS(bio)
 117 );
 118
 119 DEFINE_EVENT(bcache_bio, bcache_bypass_congested,
 120         TP_PROTO(struct bio *bio),
 121         TP_ARGS(bio)
 122 );
 123
 124 TRACE_EVENT(bcache_read,
 125         TP_PROTO(struct bio *bio, bool hit, bool bypass),
 126         TP_ARGS(bio, hit, bypass),
 127
 128         TP_STRUCT__entry(
 129                 __field(dev_t,          dev                     )
 130                 __field(sector_t,       sector                  )
 131                 __field(unsigned int,   nr_sector               )
 132                 __array(char,           rwbs,   6               )
 133                 __field(bool,           cache_hit               )
 134                 __field(bool,           bypass                  )
 135         ),
 136
 137         TP_fast_assign(
 138                 __entry->dev            = bio->bi_bdev->bd_dev;
 139                 __entry->sector         = bio->bi_iter.bi_sector;
 140                 __entry->nr_sector      = bio->bi_iter.bi_size >> 9;
 141                 blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_rw,
 142                               bio->bi_iter.bi_size);
 143                 __entry->cache_hit = hit;
 144                 __entry->bypass = bypass;
 145         ),
 146
 147         TP_printk("%d,%d  %s %llu + %u hit %u bypass %u",
 148                   MAJOR(__entry->dev), MINOR(__entry->dev),
 149                   __entry->rwbs, (unsigned long long)__entry->sector,
 150                   __entry->nr_sector, __entry->cache_hit, __entry->bypass)
 151 );
 152
 153 TRACE_EVENT(bcache_write,
 154         TP_PROTO(struct cache_set *c, u64 inode, struct bio *bio,
 155                 bool writeback, bool bypass),
 156         TP_ARGS(c, inode, bio, writeback, bypass),
 157
 158         TP_STRUCT__entry(
 159                 __array(char,           uuid,   16              )
 160                 __field(u64,            inode                   )
 161                 __field(sector_t,       sector                  )
 162                 __field(unsigned int,   nr_sector               )
 163                 __array(char,           rwbs,   6               )
 164                 __field(bool,           writeback               )
 165                 __field(bool,           bypass                  )
 166         ),
 167
 168         TP_fast_assign(
 169                 memcpy(__entry->uuid, c->sb.set_uuid, 16);
 170                 __entry->inode          = inode;
 171                 __entry->sector         = bio->bi_iter.bi_sector;
 172                 __entry->nr_sector      = bio->bi_iter.bi_size >> 9;
 173                 blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_rw,
 174                               bio->bi_iter.bi_size);
 175                 __entry->writeback = writeback;
 176                 __entry->bypass = bypass;
 177         ),
 178
 179         TP_printk("%pU inode %llu  %s %llu + %u hit %u bypass %u",
 180                   __entry->uuid, __entry->inode,
 181                   __entry->rwbs, (unsigned long long)__entry->sector,
 182                   __entry->nr_sector, __entry->writeback, __entry->bypass)
 183 );
 184
 185 DEFINE_EVENT(bcache_bio, bcache_read_retry,
 186         TP_PROTO(struct bio *bio),
 187         TP_ARGS(bio)
 188 );
 189
 190 DEFINE_EVENT(bkey, bcache_cache_insert,
 191         TP_PROTO(struct bkey *k),
 192         TP_ARGS(k)
 193 );
 194
 195 /* Journal */
 196
 197 DECLARE_EVENT_CLASS(cache_set,
 198         TP_PROTO(struct cache_set *c),
 199         TP_ARGS(c),
 200
 201         TP_STRUCT__entry(
 202                 __array(char,           uuid,   16 )
 203         ),
 204
 205         TP_fast_assign(
 206                 memcpy(__entry->uuid, c->sb.set_uuid, 16);
 207         ),
 208
 209         TP_printk("%pU", __entry->uuid)
 210 );
 211
 212 DEFINE_EVENT(bkey, bcache_journal_replay_key,
 213         TP_PROTO(struct bkey *k),
 214         TP_ARGS(k)
 215 );
 216
 217 DEFINE_EVENT(cache_set, bcache_journal_full,
 218         TP_PROTO(struct cache_set *c),
 219         TP_ARGS(c)
 220 );
 221
 222 DEFINE_EVENT(cache_set, bcache_journal_entry_full,
 223         TP_PROTO(struct cache_set *c),
 224         TP_ARGS(c)
 225 );
 226
 227 DEFINE_EVENT(bcache_bio, bcache_journal_write,
 228         TP_PROTO(struct bio *bio),
 229         TP_ARGS(bio)
 230 );
 231
 232 /* Btree */
 233
 234 DEFINE_EVENT(cache_set, bcache_btree_cache_cannibalize,
 235         TP_PROTO(struct cache_set *c),
 236         TP_ARGS(c)
 237 );
 238
 239 DEFINE_EVENT(btree_node, bcache_btree_read,
 240         TP_PROTO(struct btree *b),
 241         TP_ARGS(b)
 242 );
 243
 244 TRACE_EVENT(bcache_btree_write,
 245         TP_PROTO(struct btree *b),
 246         TP_ARGS(b),
 247
 248         TP_STRUCT__entry(
 249                 __field(size_t,         bucket                  )
 250                 __field(unsigned,       block                   )
 251                 __field(unsigned,       keys                    )
 252         ),
 253
 254         TP_fast_assign(
 255                 __entry->bucket = PTR_BUCKET_NR(b->c, &b->key, 0);
 256                 __entry->block  = b->written;
 257                 __entry->keys   = b->keys.set[b->keys.nsets].data->keys;
 258         ),
 259
 260         TP_printk("bucket %zu", __entry->bucket)
 261 );
 262
 263 DEFINE_EVENT(btree_node, bcache_btree_node_alloc,
 264         TP_PROTO(struct btree *b),
 265         TP_ARGS(b)
 266 );
 267
 268 DEFINE_EVENT(cache_set, bcache_btree_node_alloc_fail,
 269         TP_PROTO(struct cache_set *c),
 270         TP_ARGS(c)
 271 );
 272
 273 DEFINE_EVENT(btree_node, bcache_btree_node_free,
 274         TP_PROTO(struct btree *b),
 275         TP_ARGS(b)
 276 );
 277
 278 TRACE_EVENT(bcache_btree_gc_coalesce,
 279         TP_PROTO(unsigned nodes),
 280         TP_ARGS(nodes),
 281
 282         TP_STRUCT__entry(
 283                 __field(unsigned,       nodes                   )
 284         ),
 285
 286         TP_fast_assign(
 287                 __entry->nodes  = nodes;
 288         ),
 289
 290         TP_printk("coalesced %u nodes", __entry->nodes)
 291 );
 292
 293 DEFINE_EVENT(cache_set, bcache_gc_start,
 294         TP_PROTO(struct cache_set *c),
 295         TP_ARGS(c)
 296 );
 297
 298 DEFINE_EVENT(cache_set, bcache_gc_end,
 299         TP_PROTO(struct cache_set *c),
 300         TP_ARGS(c)
 301 );
 302
 303 DEFINE_EVENT(bkey, bcache_gc_copy,
 304         TP_PROTO(struct bkey *k),
 305         TP_ARGS(k)
 306 );
 307
 308 DEFINE_EVENT(bkey, bcache_gc_copy_collision,
 309         TP_PROTO(struct bkey *k),
 310         TP_ARGS(k)
 311 );
 312
 313 TRACE_EVENT(bcache_btree_insert_key,
 314         TP_PROTO(struct btree *b, struct bkey *k, unsigned op, unsigned status),
 315         TP_ARGS(b, k, op, status),
 316
 317         TP_STRUCT__entry(
 318                 __field(u64,    btree_node                      )
 319                 __field(u32,    btree_level                     )
 320                 __field(u32,    inode                           )
 321                 __field(u64,    offset                          )
 322                 __field(u32,    size                            )
 323                 __field(u8,     dirty                           )
 324                 __field(u8,     op                              )
 325                 __field(u8,     status                          )
 326         ),
 327
 328         TP_fast_assign(
 329                 __entry->btree_node = PTR_BUCKET_NR(b->c, &b->key, 0);
 330                 __entry->btree_level = b->level;
 331                 __entry->inode  = KEY_INODE(k);
 332                 __entry->offset = KEY_OFFSET(k);
 333                 __entry->size   = KEY_SIZE(k);
 334                 __entry->dirty  = KEY_DIRTY(k);
 335                 __entry->op = op;
 336                 __entry->status = status;
 337         ),
 338
 339         TP_printk("%u for %u at %llu(%u): %u:%llu len %u dirty %u",
 340                   __entry->status, __entry->op,
 341                   __entry->btree_node, __entry->btree_level,
 342                   __entry->inode, __entry->offset,
 343                   __entry->size, __entry->dirty)
 344 );
 345
 346 DECLARE_EVENT_CLASS(btree_split,
 347         TP_PROTO(struct btree *b, unsigned keys),
 348         TP_ARGS(b, keys),
 349
 350         TP_STRUCT__entry(
 351                 __field(size_t,         bucket                  )
 352                 __field(unsigned,       keys                    )
 353         ),
 354
 355         TP_fast_assign(
 356                 __entry->bucket = PTR_BUCKET_NR(b->c, &b->key, 0);
 357                 __entry->keys   = keys;
 358         ),
 359
 360         TP_printk("bucket %zu keys %u", __entry->bucket, __entry->keys)
 361 );
 362
 363 DEFINE_EVENT(btree_split, bcache_btree_node_split,
 364         TP_PROTO(struct btree *b, unsigned keys),
 365         TP_ARGS(b, keys)
 366 );
 367
 368 DEFINE_EVENT(btree_split, bcache_btree_node_compact,
 369         TP_PROTO(struct btree *b, unsigned keys),
 370         TP_ARGS(b, keys)
 371 );
 372
 373 DEFINE_EVENT(btree_node, bcache_btree_set_root,
 374         TP_PROTO(struct btree *b),
 375         TP_ARGS(b)
 376 );
 377
 378 TRACE_EVENT(bcache_keyscan,
 379         TP_PROTO(unsigned nr_found,
 380                  unsigned start_inode, uint64_t start_offset,
 381                  unsigned end_inode, uint64_t end_offset),
 382         TP_ARGS(nr_found,
 383                 start_inode, start_offset,
 384                 end_inode, end_offset),
 385
 386         TP_STRUCT__entry(
 387                 __field(__u32,  nr_found                        )
 388                 __field(__u32,  start_inode                     )
 389                 __field(__u64,  start_offset                    )
 390                 __field(__u32,  end_inode                       )
 391                 __field(__u64,  end_offset                      )
 392         ),
 393
 394         TP_fast_assign(
 395                 __entry->nr_found       = nr_found;
 396                 __entry->start_inode    = start_inode;
 397                 __entry->start_offset   = start_offset;
 398                 __entry->end_inode      = end_inode;
 399                 __entry->end_offset     = end_offset;
 400         ),
 401
 402         TP_printk("found %u keys from %u:%llu to %u:%llu", __entry->nr_found,
 403                   __entry->start_inode, __entry->start_offset,
 404                   __entry->end_inode, __entry->end_offset)
 405 );
 406
 407 /* Allocator */
 408
 409 TRACE_EVENT(bcache_invalidate,
 410         TP_PROTO(struct cache *ca, size_t bucket),
 411         TP_ARGS(ca, bucket),
 412
 413         TP_STRUCT__entry(
 414                 __field(unsigned,       sectors                 )
 415                 __field(dev_t,          dev                     )
 416                 __field(__u64,          offset                  )
 417         ),
 418
 419         TP_fast_assign(
 420                 __entry->dev            = ca->bdev->bd_dev;
 421                 __entry->offset         = bucket << ca->set->bucket_bits;
 422                 __entry->sectors        = GC_SECTORS_USED(&ca->buckets[bucket]);
 423         ),
 424
 425         TP_printk("invalidated %u sectors at %d,%d sector=%llu",
 426                   __entry->sectors, MAJOR(__entry->dev),
 427                   MINOR(__entry->dev), __entry->offset)
 428 );
 429
 430 TRACE_EVENT(bcache_alloc,
 431         TP_PROTO(struct cache *ca, size_t bucket),
 432         TP_ARGS(ca, bucket),
 433
 434         TP_STRUCT__entry(
 435                 __field(dev_t,          dev                     )
 436                 __field(__u64,          offset                  )
 437         ),
 438
 439         TP_fast_assign(
 440                 __entry->dev            = ca->bdev->bd_dev;
 441                 __entry->offset         = bucket << ca->set->bucket_bits;
 442         ),
 443
 444         TP_printk("allocated %d,%d sector=%llu", MAJOR(__entry->dev),
 445                   MINOR(__entry->dev), __entry->offset)
 446 );
 447
 448 TRACE_EVENT(bcache_alloc_fail,
 449         TP_PROTO(struct cache *ca, unsigned reserve),
 450         TP_ARGS(ca, reserve),
 451
 452         TP_STRUCT__entry(
 453                 __field(dev_t,          dev                     )
 454                 __field(unsigned,       free                    )
 455                 __field(unsigned,       free_inc                )
 456                 __field(unsigned,       blocked                 )
 457         ),
 458
 459         TP_fast_assign(
 460                 __entry->dev            = ca->bdev->bd_dev;
 461                 __entry->free           = fifo_used(&ca->free[reserve]);
 462                 __entry->free_inc       = fifo_used(&ca->free_inc);
 463                 __entry->blocked        = atomic_read(&ca->set->prio_blocked);
 464         ),
 465
 466         TP_printk("alloc fail %d,%d free %u free_inc %u blocked %u",
 467                   MAJOR(__entry->dev), MINOR(__entry->dev), __entry->free,
 468                   __entry->free_inc, __entry->blocked)
 469 );
 470
 471 /* Background writeback */
 472
 473 DEFINE_EVENT(bkey, bcache_writeback,
 474         TP_PROTO(struct bkey *k),
 475         TP_ARGS(k)
 476 );
 477
 478 DEFINE_EVENT(bkey, bcache_writeback_collision,
 479         TP_PROTO(struct bkey *k),
 480         TP_ARGS(k)
 481 );
 482
 483 #endif /* _TRACE_BCACHE_H */
 484
 485 /* This part must be outside protection */
 486 #include <trace/define_trace.h>