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