1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #undef TRACE_SYSTEM 3 #define TRACE_SYSTEM writeback 4 5 #if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ) 6 #define _TRACE_WRITEBACK_H 7 8 #include <linux/tracepoint.h> 9 #include <linux/backing-dev.h> 10 #include <linux/writeback.h> 11 12 #define show_inode_state(state) \ 13 __print_flags(state, "|", \ 14 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \ 15 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \ 16 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \ 17 {I_NEW, "I_NEW"}, \ 18 {I_WILL_FREE, "I_WILL_FREE"}, \ 19 {I_FREEING, "I_FREEING"}, \ 20 {I_CLEAR, "I_CLEAR"}, \ 21 {I_SYNC, "I_SYNC"}, \ 22 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \ 23 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \ 24 {I_REFERENCED, "I_REFERENCED"} \ 25 ) 26 27 /* enums need to be exported to user space */ 28 #undef EM 29 #undef EMe 30 #define EM(a,b) TRACE_DEFINE_ENUM(a); 31 #define EMe(a,b) TRACE_DEFINE_ENUM(a); 32 33 #define WB_WORK_REASON \ 34 EM( WB_REASON_BACKGROUND, "background") \ 35 EM( WB_REASON_VMSCAN, "vmscan") \ 36 EM( WB_REASON_SYNC, "sync") \ 37 EM( WB_REASON_PERIODIC, "periodic") \ 38 EM( WB_REASON_LAPTOP_TIMER, "laptop_timer") \ 39 EM( WB_REASON_FREE_MORE_MEM, "free_more_memory") \ 40 EM( WB_REASON_FS_FREE_SPACE, "fs_free_space") \ 41 EMe(WB_REASON_FORKER_THREAD, "forker_thread") 42 43 WB_WORK_REASON 44 45 /* 46 * Now redefine the EM() and EMe() macros to map the enums to the strings 47 * that will be printed in the output. 48 */ 49 #undef EM 50 #undef EMe 51 #define EM(a,b) { a, b }, 52 #define EMe(a,b) { a, b } 53 54 struct wb_writeback_work; 55 56 TRACE_EVENT(writeback_dirty_page, 57 58 TP_PROTO(struct page *page, struct address_space *mapping), 59 60 TP_ARGS(page, mapping), 61 62 TP_STRUCT__entry ( 63 __array(char, name, 32) 64 __field(unsigned long, ino) 65 __field(pgoff_t, index) 66 ), 67 68 TP_fast_assign( 69 strncpy(__entry->name, 70 mapping ? dev_name(inode_to_bdi(mapping->host)->dev) : "(unknown)", 32); 71 __entry->ino = mapping ? mapping->host->i_ino : 0; 72 __entry->index = page->index; 73 ), 74 75 TP_printk("bdi %s: ino=%lu index=%lu", 76 __entry->name, 77 __entry->ino, 78 __entry->index 79 ) 80 ); 81 82 DECLARE_EVENT_CLASS(writeback_dirty_inode_template, 83 84 TP_PROTO(struct inode *inode, int flags), 85 86 TP_ARGS(inode, flags), 87 88 TP_STRUCT__entry ( 89 __array(char, name, 32) 90 __field(unsigned long, ino) 91 __field(unsigned long, state) 92 __field(unsigned long, flags) 93 ), 94 95 TP_fast_assign( 96 struct backing_dev_info *bdi = inode_to_bdi(inode); 97 98 /* may be called for files on pseudo FSes w/ unregistered bdi */ 99 strncpy(__entry->name, 100 bdi->dev ? dev_name(bdi->dev) : "(unknown)", 32); 101 __entry->ino = inode->i_ino; 102 __entry->state = inode->i_state; 103 __entry->flags = flags; 104 ), 105 106 TP_printk("bdi %s: ino=%lu state=%s flags=%s", 107 __entry->name, 108 __entry->ino, 109 show_inode_state(__entry->state), 110 show_inode_state(__entry->flags) 111 ) 112 ); 113 114 DEFINE_EVENT(writeback_dirty_inode_template, writeback_mark_inode_dirty, 115 116 TP_PROTO(struct inode *inode, int flags), 117 118 TP_ARGS(inode, flags) 119 ); 120 121 DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode_start, 122 123 TP_PROTO(struct inode *inode, int flags), 124 125 TP_ARGS(inode, flags) 126 ); 127 128 DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode, 129 130 TP_PROTO(struct inode *inode, int flags), 131 132 TP_ARGS(inode, flags) 133 ); 134 135 #ifdef CREATE_TRACE_POINTS 136 #ifdef CONFIG_CGROUP_WRITEBACK 137 138 static inline unsigned int __trace_wb_assign_cgroup(struct bdi_writeback *wb) 139 { 140 return wb->memcg_css->cgroup->kn->id.ino; 141 } 142 143 static inline unsigned int __trace_wbc_assign_cgroup(struct writeback_control *wbc) 144 { 145 if (wbc->wb) 146 return __trace_wb_assign_cgroup(wbc->wb); 147 else 148 return -1U; 149 } 150 #else /* CONFIG_CGROUP_WRITEBACK */ 151 152 static inline unsigned int __trace_wb_assign_cgroup(struct bdi_writeback *wb) 153 { 154 return -1U; 155 } 156 157 static inline unsigned int __trace_wbc_assign_cgroup(struct writeback_control *wbc) 158 { 159 return -1U; 160 } 161 162 #endif /* CONFIG_CGROUP_WRITEBACK */ 163 #endif /* CREATE_TRACE_POINTS */ 164 165 DECLARE_EVENT_CLASS(writeback_write_inode_template, 166 167 TP_PROTO(struct inode *inode, struct writeback_control *wbc), 168 169 TP_ARGS(inode, wbc), 170 171 TP_STRUCT__entry ( 172 __array(char, name, 32) 173 __field(unsigned long, ino) 174 __field(int, sync_mode) 175 __field(unsigned int, cgroup_ino) 176 ), 177 178 TP_fast_assign( 179 strncpy(__entry->name, 180 dev_name(inode_to_bdi(inode)->dev), 32); 181 __entry->ino = inode->i_ino; 182 __entry->sync_mode = wbc->sync_mode; 183 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc); 184 ), 185 186 TP_printk("bdi %s: ino=%lu sync_mode=%d cgroup_ino=%u", 187 __entry->name, 188 __entry->ino, 189 __entry->sync_mode, 190 __entry->cgroup_ino 191 ) 192 ); 193 194 DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode_start, 195 196 TP_PROTO(struct inode *inode, struct writeback_control *wbc), 197 198 TP_ARGS(inode, wbc) 199 ); 200 201 DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode, 202 203 TP_PROTO(struct inode *inode, struct writeback_control *wbc), 204 205 TP_ARGS(inode, wbc) 206 ); 207 208 DECLARE_EVENT_CLASS(writeback_work_class, 209 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), 210 TP_ARGS(wb, work), 211 TP_STRUCT__entry( 212 __array(char, name, 32) 213 __field(long, nr_pages) 214 __field(dev_t, sb_dev) 215 __field(int, sync_mode) 216 __field(int, for_kupdate) 217 __field(int, range_cyclic) 218 __field(int, for_background) 219 __field(int, reason) 220 __field(unsigned int, cgroup_ino) 221 ), 222 TP_fast_assign( 223 strncpy(__entry->name, 224 wb->bdi->dev ? dev_name(wb->bdi->dev) : "(unknown)", 32); 225 __entry->nr_pages = work->nr_pages; 226 __entry->sb_dev = work->sb ? work->sb->s_dev : 0; 227 __entry->sync_mode = work->sync_mode; 228 __entry->for_kupdate = work->for_kupdate; 229 __entry->range_cyclic = work->range_cyclic; 230 __entry->for_background = work->for_background; 231 __entry->reason = work->reason; 232 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb); 233 ), 234 TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d " 235 "kupdate=%d range_cyclic=%d background=%d reason=%s cgroup_ino=%u", 236 __entry->name, 237 MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev), 238 __entry->nr_pages, 239 __entry->sync_mode, 240 __entry->for_kupdate, 241 __entry->range_cyclic, 242 __entry->for_background, 243 __print_symbolic(__entry->reason, WB_WORK_REASON), 244 __entry->cgroup_ino 245 ) 246 ); 247 #define DEFINE_WRITEBACK_WORK_EVENT(name) \ 248 DEFINE_EVENT(writeback_work_class, name, \ 249 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \ 250 TP_ARGS(wb, work)) 251 DEFINE_WRITEBACK_WORK_EVENT(writeback_queue); 252 DEFINE_WRITEBACK_WORK_EVENT(writeback_exec); 253 DEFINE_WRITEBACK_WORK_EVENT(writeback_start); 254 DEFINE_WRITEBACK_WORK_EVENT(writeback_written); 255 DEFINE_WRITEBACK_WORK_EVENT(writeback_wait); 256 257 TRACE_EVENT(writeback_pages_written, 258 TP_PROTO(long pages_written), 259 TP_ARGS(pages_written), 260 TP_STRUCT__entry( 261 __field(long, pages) 262 ), 263 TP_fast_assign( 264 __entry->pages = pages_written; 265 ), 266 TP_printk("%ld", __entry->pages) 267 ); 268 269 DECLARE_EVENT_CLASS(writeback_class, 270 TP_PROTO(struct bdi_writeback *wb), 271 TP_ARGS(wb), 272 TP_STRUCT__entry( 273 __array(char, name, 32) 274 __field(unsigned int, cgroup_ino) 275 ), 276 TP_fast_assign( 277 strncpy(__entry->name, dev_name(wb->bdi->dev), 32); 278 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb); 279 ), 280 TP_printk("bdi %s: cgroup_ino=%u", 281 __entry->name, 282 __entry->cgroup_ino 283 ) 284 ); 285 #define DEFINE_WRITEBACK_EVENT(name) \ 286 DEFINE_EVENT(writeback_class, name, \ 287 TP_PROTO(struct bdi_writeback *wb), \ 288 TP_ARGS(wb)) 289 290 DEFINE_WRITEBACK_EVENT(writeback_wake_background); 291 292 TRACE_EVENT(writeback_bdi_register, 293 TP_PROTO(struct backing_dev_info *bdi), 294 TP_ARGS(bdi), 295 TP_STRUCT__entry( 296 __array(char, name, 32) 297 ), 298 TP_fast_assign( 299 strncpy(__entry->name, dev_name(bdi->dev), 32); 300 ), 301 TP_printk("bdi %s", 302 __entry->name 303 ) 304 ); 305 306 DECLARE_EVENT_CLASS(wbc_class, 307 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), 308 TP_ARGS(wbc, bdi), 309 TP_STRUCT__entry( 310 __array(char, name, 32) 311 __field(long, nr_to_write) 312 __field(long, pages_skipped) 313 __field(int, sync_mode) 314 __field(int, for_kupdate) 315 __field(int, for_background) 316 __field(int, for_reclaim) 317 __field(int, range_cyclic) 318 __field(long, range_start) 319 __field(long, range_end) 320 __field(unsigned int, cgroup_ino) 321 ), 322 323 TP_fast_assign( 324 strncpy(__entry->name, dev_name(bdi->dev), 32); 325 __entry->nr_to_write = wbc->nr_to_write; 326 __entry->pages_skipped = wbc->pages_skipped; 327 __entry->sync_mode = wbc->sync_mode; 328 __entry->for_kupdate = wbc->for_kupdate; 329 __entry->for_background = wbc->for_background; 330 __entry->for_reclaim = wbc->for_reclaim; 331 __entry->range_cyclic = wbc->range_cyclic; 332 __entry->range_start = (long)wbc->range_start; 333 __entry->range_end = (long)wbc->range_end; 334 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc); 335 ), 336 337 TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d " 338 "bgrd=%d reclm=%d cyclic=%d " 339 "start=0x%lx end=0x%lx cgroup_ino=%u", 340 __entry->name, 341 __entry->nr_to_write, 342 __entry->pages_skipped, 343 __entry->sync_mode, 344 __entry->for_kupdate, 345 __entry->for_background, 346 __entry->for_reclaim, 347 __entry->range_cyclic, 348 __entry->range_start, 349 __entry->range_end, 350 __entry->cgroup_ino 351 ) 352 ) 353 354 #define DEFINE_WBC_EVENT(name) \ 355 DEFINE_EVENT(wbc_class, name, \ 356 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \ 357 TP_ARGS(wbc, bdi)) 358 DEFINE_WBC_EVENT(wbc_writepage); 359 360 TRACE_EVENT(writeback_queue_io, 361 TP_PROTO(struct bdi_writeback *wb, 362 struct wb_writeback_work *work, 363 int moved), 364 TP_ARGS(wb, work, moved), 365 TP_STRUCT__entry( 366 __array(char, name, 32) 367 __field(unsigned long, older) 368 __field(long, age) 369 __field(int, moved) 370 __field(int, reason) 371 __field(unsigned int, cgroup_ino) 372 ), 373 TP_fast_assign( 374 unsigned long *older_than_this = work->older_than_this; 375 strncpy(__entry->name, dev_name(wb->bdi->dev), 32); 376 __entry->older = older_than_this ? *older_than_this : 0; 377 __entry->age = older_than_this ? 378 (jiffies - *older_than_this) * 1000 / HZ : -1; 379 __entry->moved = moved; 380 __entry->reason = work->reason; 381 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb); 382 ), 383 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s cgroup_ino=%u", 384 __entry->name, 385 __entry->older, /* older_than_this in jiffies */ 386 __entry->age, /* older_than_this in relative milliseconds */ 387 __entry->moved, 388 __print_symbolic(__entry->reason, WB_WORK_REASON), 389 __entry->cgroup_ino 390 ) 391 ); 392 393 TRACE_EVENT(global_dirty_state, 394 395 TP_PROTO(unsigned long background_thresh, 396 unsigned long dirty_thresh 397 ), 398 399 TP_ARGS(background_thresh, 400 dirty_thresh 401 ), 402 403 TP_STRUCT__entry( 404 __field(unsigned long, nr_dirty) 405 __field(unsigned long, nr_writeback) 406 __field(unsigned long, nr_unstable) 407 __field(unsigned long, background_thresh) 408 __field(unsigned long, dirty_thresh) 409 __field(unsigned long, dirty_limit) 410 __field(unsigned long, nr_dirtied) 411 __field(unsigned long, nr_written) 412 ), 413 414 TP_fast_assign( 415 __entry->nr_dirty = global_node_page_state(NR_FILE_DIRTY); 416 __entry->nr_writeback = global_node_page_state(NR_WRITEBACK); 417 __entry->nr_unstable = global_node_page_state(NR_UNSTABLE_NFS); 418 __entry->nr_dirtied = global_node_page_state(NR_DIRTIED); 419 __entry->nr_written = global_node_page_state(NR_WRITTEN); 420 __entry->background_thresh = background_thresh; 421 __entry->dirty_thresh = dirty_thresh; 422 __entry->dirty_limit = global_wb_domain.dirty_limit; 423 ), 424 425 TP_printk("dirty=%lu writeback=%lu unstable=%lu " 426 "bg_thresh=%lu thresh=%lu limit=%lu " 427 "dirtied=%lu written=%lu", 428 __entry->nr_dirty, 429 __entry->nr_writeback, 430 __entry->nr_unstable, 431 __entry->background_thresh, 432 __entry->dirty_thresh, 433 __entry->dirty_limit, 434 __entry->nr_dirtied, 435 __entry->nr_written 436 ) 437 ); 438 439 #define KBps(x) ((x) << (PAGE_SHIFT - 10)) 440 441 TRACE_EVENT(bdi_dirty_ratelimit, 442 443 TP_PROTO(struct bdi_writeback *wb, 444 unsigned long dirty_rate, 445 unsigned long task_ratelimit), 446 447 TP_ARGS(wb, dirty_rate, task_ratelimit), 448 449 TP_STRUCT__entry( 450 __array(char, bdi, 32) 451 __field(unsigned long, write_bw) 452 __field(unsigned long, avg_write_bw) 453 __field(unsigned long, dirty_rate) 454 __field(unsigned long, dirty_ratelimit) 455 __field(unsigned long, task_ratelimit) 456 __field(unsigned long, balanced_dirty_ratelimit) 457 __field(unsigned int, cgroup_ino) 458 ), 459 460 TP_fast_assign( 461 strlcpy(__entry->bdi, dev_name(wb->bdi->dev), 32); 462 __entry->write_bw = KBps(wb->write_bandwidth); 463 __entry->avg_write_bw = KBps(wb->avg_write_bandwidth); 464 __entry->dirty_rate = KBps(dirty_rate); 465 __entry->dirty_ratelimit = KBps(wb->dirty_ratelimit); 466 __entry->task_ratelimit = KBps(task_ratelimit); 467 __entry->balanced_dirty_ratelimit = 468 KBps(wb->balanced_dirty_ratelimit); 469 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb); 470 ), 471 472 TP_printk("bdi %s: " 473 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu " 474 "dirty_ratelimit=%lu task_ratelimit=%lu " 475 "balanced_dirty_ratelimit=%lu cgroup_ino=%u", 476 __entry->bdi, 477 __entry->write_bw, /* write bandwidth */ 478 __entry->avg_write_bw, /* avg write bandwidth */ 479 __entry->dirty_rate, /* bdi dirty rate */ 480 __entry->dirty_ratelimit, /* base ratelimit */ 481 __entry->task_ratelimit, /* ratelimit with position control */ 482 __entry->balanced_dirty_ratelimit, /* the balanced ratelimit */ 483 __entry->cgroup_ino 484 ) 485 ); 486 487 TRACE_EVENT(balance_dirty_pages, 488 489 TP_PROTO(struct bdi_writeback *wb, 490 unsigned long thresh, 491 unsigned long bg_thresh, 492 unsigned long dirty, 493 unsigned long bdi_thresh, 494 unsigned long bdi_dirty, 495 unsigned long dirty_ratelimit, 496 unsigned long task_ratelimit, 497 unsigned long dirtied, 498 unsigned long period, 499 long pause, 500 unsigned long start_time), 501 502 TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty, 503 dirty_ratelimit, task_ratelimit, 504 dirtied, period, pause, start_time), 505 506 TP_STRUCT__entry( 507 __array( char, bdi, 32) 508 __field(unsigned long, limit) 509 __field(unsigned long, setpoint) 510 __field(unsigned long, dirty) 511 __field(unsigned long, bdi_setpoint) 512 __field(unsigned long, bdi_dirty) 513 __field(unsigned long, dirty_ratelimit) 514 __field(unsigned long, task_ratelimit) 515 __field(unsigned int, dirtied) 516 __field(unsigned int, dirtied_pause) 517 __field(unsigned long, paused) 518 __field( long, pause) 519 __field(unsigned long, period) 520 __field( long, think) 521 __field(unsigned int, cgroup_ino) 522 ), 523 524 TP_fast_assign( 525 unsigned long freerun = (thresh + bg_thresh) / 2; 526 strlcpy(__entry->bdi, dev_name(wb->bdi->dev), 32); 527 528 __entry->limit = global_wb_domain.dirty_limit; 529 __entry->setpoint = (global_wb_domain.dirty_limit + 530 freerun) / 2; 531 __entry->dirty = dirty; 532 __entry->bdi_setpoint = __entry->setpoint * 533 bdi_thresh / (thresh + 1); 534 __entry->bdi_dirty = bdi_dirty; 535 __entry->dirty_ratelimit = KBps(dirty_ratelimit); 536 __entry->task_ratelimit = KBps(task_ratelimit); 537 __entry->dirtied = dirtied; 538 __entry->dirtied_pause = current->nr_dirtied_pause; 539 __entry->think = current->dirty_paused_when == 0 ? 0 : 540 (long)(jiffies - current->dirty_paused_when) * 1000/HZ; 541 __entry->period = period * 1000 / HZ; 542 __entry->pause = pause * 1000 / HZ; 543 __entry->paused = (jiffies - start_time) * 1000 / HZ; 544 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb); 545 ), 546 547 548 TP_printk("bdi %s: " 549 "limit=%lu setpoint=%lu dirty=%lu " 550 "bdi_setpoint=%lu bdi_dirty=%lu " 551 "dirty_ratelimit=%lu task_ratelimit=%lu " 552 "dirtied=%u dirtied_pause=%u " 553 "paused=%lu pause=%ld period=%lu think=%ld cgroup_ino=%u", 554 __entry->bdi, 555 __entry->limit, 556 __entry->setpoint, 557 __entry->dirty, 558 __entry->bdi_setpoint, 559 __entry->bdi_dirty, 560 __entry->dirty_ratelimit, 561 __entry->task_ratelimit, 562 __entry->dirtied, 563 __entry->dirtied_pause, 564 __entry->paused, /* ms */ 565 __entry->pause, /* ms */ 566 __entry->period, /* ms */ 567 __entry->think, /* ms */ 568 __entry->cgroup_ino 569 ) 570 ); 571 572 TRACE_EVENT(writeback_sb_inodes_requeue, 573 574 TP_PROTO(struct inode *inode), 575 TP_ARGS(inode), 576 577 TP_STRUCT__entry( 578 __array(char, name, 32) 579 __field(unsigned long, ino) 580 __field(unsigned long, state) 581 __field(unsigned long, dirtied_when) 582 __field(unsigned int, cgroup_ino) 583 ), 584 585 TP_fast_assign( 586 strncpy(__entry->name, 587 dev_name(inode_to_bdi(inode)->dev), 32); 588 __entry->ino = inode->i_ino; 589 __entry->state = inode->i_state; 590 __entry->dirtied_when = inode->dirtied_when; 591 __entry->cgroup_ino = __trace_wb_assign_cgroup(inode_to_wb(inode)); 592 ), 593 594 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu cgroup_ino=%u", 595 __entry->name, 596 __entry->ino, 597 show_inode_state(__entry->state), 598 __entry->dirtied_when, 599 (jiffies - __entry->dirtied_when) / HZ, 600 __entry->cgroup_ino 601 ) 602 ); 603 604 DECLARE_EVENT_CLASS(writeback_congest_waited_template, 605 606 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), 607 608 TP_ARGS(usec_timeout, usec_delayed), 609 610 TP_STRUCT__entry( 611 __field( unsigned int, usec_timeout ) 612 __field( unsigned int, usec_delayed ) 613 ), 614 615 TP_fast_assign( 616 __entry->usec_timeout = usec_timeout; 617 __entry->usec_delayed = usec_delayed; 618 ), 619 620 TP_printk("usec_timeout=%u usec_delayed=%u", 621 __entry->usec_timeout, 622 __entry->usec_delayed) 623 ); 624 625 DEFINE_EVENT(writeback_congest_waited_template, writeback_congestion_wait, 626 627 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), 628 629 TP_ARGS(usec_timeout, usec_delayed) 630 ); 631 632 DEFINE_EVENT(writeback_congest_waited_template, writeback_wait_iff_congested, 633 634 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), 635 636 TP_ARGS(usec_timeout, usec_delayed) 637 ); 638 639 DECLARE_EVENT_CLASS(writeback_single_inode_template, 640 641 TP_PROTO(struct inode *inode, 642 struct writeback_control *wbc, 643 unsigned long nr_to_write 644 ), 645 646 TP_ARGS(inode, wbc, nr_to_write), 647 648 TP_STRUCT__entry( 649 __array(char, name, 32) 650 __field(unsigned long, ino) 651 __field(unsigned long, state) 652 __field(unsigned long, dirtied_when) 653 __field(unsigned long, writeback_index) 654 __field(long, nr_to_write) 655 __field(unsigned long, wrote) 656 __field(unsigned int, cgroup_ino) 657 ), 658 659 TP_fast_assign( 660 strncpy(__entry->name, 661 dev_name(inode_to_bdi(inode)->dev), 32); 662 __entry->ino = inode->i_ino; 663 __entry->state = inode->i_state; 664 __entry->dirtied_when = inode->dirtied_when; 665 __entry->writeback_index = inode->i_mapping->writeback_index; 666 __entry->nr_to_write = nr_to_write; 667 __entry->wrote = nr_to_write - wbc->nr_to_write; 668 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc); 669 ), 670 671 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu " 672 "index=%lu to_write=%ld wrote=%lu cgroup_ino=%u", 673 __entry->name, 674 __entry->ino, 675 show_inode_state(__entry->state), 676 __entry->dirtied_when, 677 (jiffies - __entry->dirtied_when) / HZ, 678 __entry->writeback_index, 679 __entry->nr_to_write, 680 __entry->wrote, 681 __entry->cgroup_ino 682 ) 683 ); 684 685 DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_start, 686 TP_PROTO(struct inode *inode, 687 struct writeback_control *wbc, 688 unsigned long nr_to_write), 689 TP_ARGS(inode, wbc, nr_to_write) 690 ); 691 692 DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode, 693 TP_PROTO(struct inode *inode, 694 struct writeback_control *wbc, 695 unsigned long nr_to_write), 696 TP_ARGS(inode, wbc, nr_to_write) 697 ); 698 699 DECLARE_EVENT_CLASS(writeback_inode_template, 700 TP_PROTO(struct inode *inode), 701 702 TP_ARGS(inode), 703 704 TP_STRUCT__entry( 705 __field( dev_t, dev ) 706 __field(unsigned long, ino ) 707 __field(unsigned long, state ) 708 __field( __u16, mode ) 709 __field(unsigned long, dirtied_when ) 710 ), 711 712 TP_fast_assign( 713 __entry->dev = inode->i_sb->s_dev; 714 __entry->ino = inode->i_ino; 715 __entry->state = inode->i_state; 716 __entry->mode = inode->i_mode; 717 __entry->dirtied_when = inode->dirtied_when; 718 ), 719 720 TP_printk("dev %d,%d ino %lu dirtied %lu state %s mode 0%o", 721 MAJOR(__entry->dev), MINOR(__entry->dev), 722 __entry->ino, __entry->dirtied_when, 723 show_inode_state(__entry->state), __entry->mode) 724 ); 725 726 DEFINE_EVENT(writeback_inode_template, writeback_lazytime, 727 TP_PROTO(struct inode *inode), 728 729 TP_ARGS(inode) 730 ); 731 732 DEFINE_EVENT(writeback_inode_template, writeback_lazytime_iput, 733 TP_PROTO(struct inode *inode), 734 735 TP_ARGS(inode) 736 ); 737 738 DEFINE_EVENT(writeback_inode_template, writeback_dirty_inode_enqueue, 739 740 TP_PROTO(struct inode *inode), 741 742 TP_ARGS(inode) 743 ); 744 745 /* 746 * Inode writeback list tracking. 747 */ 748 749 DEFINE_EVENT(writeback_inode_template, sb_mark_inode_writeback, 750 TP_PROTO(struct inode *inode), 751 TP_ARGS(inode) 752 ); 753 754 DEFINE_EVENT(writeback_inode_template, sb_clear_inode_writeback, 755 TP_PROTO(struct inode *inode), 756 TP_ARGS(inode) 757 ); 758 759 #endif /* _TRACE_WRITEBACK_H */ 760 761 /* This part must be outside protection */ 762 #include <trace/define_trace.h> 763