include/trace/events/writeback.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM writeback
   3
   4 #if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define _TRACE_WRITEBACK_H
   6
   7 #include <linux/tracepoint.h>
   8 #include <linux/backing-dev.h>
   9 #include <linux/writeback.h>
  10
  11 #define show_inode_state(state)                                 \
  12         __print_flags(state, "|",                               \
  13                 {I_DIRTY_SYNC,          "I_DIRTY_SYNC"},        \
  14                 {I_DIRTY_DATASYNC,      "I_DIRTY_DATASYNC"},    \
  15                 {I_DIRTY_PAGES,         "I_DIRTY_PAGES"},       \
  16                 {I_NEW,                 "I_NEW"},               \
  17                 {I_WILL_FREE,           "I_WILL_FREE"},         \
  18                 {I_FREEING,             "I_FREEING"},           \
  19                 {I_CLEAR,               "I_CLEAR"},             \
  20                 {I_SYNC,                "I_SYNC"},              \
  21                 {I_REFERENCED,          "I_REFERENCED"}         \
  22         )
  23
  24 #define WB_WORK_REASON                                                  \
  25                 {WB_REASON_BACKGROUND,          "background"},          \
  26                 {WB_REASON_TRY_TO_FREE_PAGES,   "try_to_free_pages"},   \
  27                 {WB_REASON_SYNC,                "sync"},                \
  28                 {WB_REASON_PERIODIC,            "periodic"},            \
  29                 {WB_REASON_LAPTOP_TIMER,        "laptop_timer"},        \
  30                 {WB_REASON_FREE_MORE_MEM,       "free_more_memory"},    \
  31                 {WB_REASON_FS_FREE_SPACE,       "fs_free_space"},       \
  32                 {WB_REASON_FORKER_THREAD,       "forker_thread"}
  33
  34 struct wb_writeback_work;
  35
  36 TRACE_EVENT(writeback_dirty_page,
  37
  38         TP_PROTO(struct page *page, struct address_space *mapping),
  39
  40         TP_ARGS(page, mapping),
  41
  42         TP_STRUCT__entry (
  43                 __array(char, name, 32)
  44                 __field(unsigned long, ino)
  45                 __field(pgoff_t, index)
  46         ),
  47
  48         TP_fast_assign(
  49                 strncpy(__entry->name,
  50                         mapping ? dev_name(mapping->backing_dev_info->dev) : "(unknown)", 32);
  51                 __entry->ino = mapping ? mapping->host->i_ino : 0;
  52                 __entry->index = page->index;
  53         ),
  54
  55         TP_printk("bdi %s: ino=%lu index=%lu",
  56                 __entry->name,
  57                 __entry->ino,
  58                 __entry->index
  59         )
  60 );
  61
  62 DECLARE_EVENT_CLASS(writeback_dirty_inode_template,
  63
  64         TP_PROTO(struct inode *inode, int flags),
  65
  66         TP_ARGS(inode, flags),
  67
  68         TP_STRUCT__entry (
  69                 __array(char, name, 32)
  70                 __field(unsigned long, ino)
  71                 __field(unsigned long, flags)
  72         ),
  73
  74         TP_fast_assign(
  75                 struct backing_dev_info *bdi = inode->i_mapping->backing_dev_info;
  76
  77                 /* may be called for files on pseudo FSes w/ unregistered bdi */
  78                 strncpy(__entry->name,
  79                         bdi->dev ? dev_name(bdi->dev) : "(unknown)", 32);
  80                 __entry->ino            = inode->i_ino;
  81                 __entry->flags          = flags;
  82         ),
  83
  84         TP_printk("bdi %s: ino=%lu flags=%s",
  85                 __entry->name,
  86                 __entry->ino,
  87                 show_inode_state(__entry->flags)
  88         )
  89 );
  90
  91 DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode_start,
  92
  93         TP_PROTO(struct inode *inode, int flags),
  94
  95         TP_ARGS(inode, flags)
  96 );
  97
  98 DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode,
  99
 100         TP_PROTO(struct inode *inode, int flags),
 101
 102         TP_ARGS(inode, flags)
 103 );
 104
 105 DECLARE_EVENT_CLASS(writeback_write_inode_template,
 106
 107         TP_PROTO(struct inode *inode, struct writeback_control *wbc),
 108
 109         TP_ARGS(inode, wbc),
 110
 111         TP_STRUCT__entry (
 112                 __array(char, name, 32)
 113                 __field(unsigned long, ino)
 114                 __field(int, sync_mode)
 115         ),
 116
 117         TP_fast_assign(
 118                 strncpy(__entry->name,
 119                         dev_name(inode->i_mapping->backing_dev_info->dev), 32);
 120                 __entry->ino            = inode->i_ino;
 121                 __entry->sync_mode      = wbc->sync_mode;
 122         ),
 123
 124         TP_printk("bdi %s: ino=%lu sync_mode=%d",
 125                 __entry->name,
 126                 __entry->ino,
 127                 __entry->sync_mode
 128         )
 129 );
 130
 131 DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode_start,
 132
 133         TP_PROTO(struct inode *inode, struct writeback_control *wbc),
 134
 135         TP_ARGS(inode, wbc)
 136 );
 137
 138 DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode,
 139
 140         TP_PROTO(struct inode *inode, struct writeback_control *wbc),
 141
 142         TP_ARGS(inode, wbc)
 143 );
 144
 145 DECLARE_EVENT_CLASS(writeback_work_class,
 146         TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
 147         TP_ARGS(bdi, work),
 148         TP_STRUCT__entry(
 149                 __array(char, name, 32)
 150                 __field(long, nr_pages)
 151                 __field(dev_t, sb_dev)
 152                 __field(int, sync_mode)
 153                 __field(int, for_kupdate)
 154                 __field(int, range_cyclic)
 155                 __field(int, for_background)
 156                 __field(int, reason)
 157         ),
 158         TP_fast_assign(
 159                 struct device *dev = bdi->dev;
 160                 if (!dev)
 161                         dev = default_backing_dev_info.dev;
 162                 strncpy(__entry->name, dev_name(dev), 32);
 163                 __entry->nr_pages = work->nr_pages;
 164                 __entry->sb_dev = work->sb ? work->sb->s_dev : 0;
 165                 __entry->sync_mode = work->sync_mode;
 166                 __entry->for_kupdate = work->for_kupdate;
 167                 __entry->range_cyclic = work->range_cyclic;
 168                 __entry->for_background = work->for_background;
 169                 __entry->reason = work->reason;
 170         ),
 171         TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d "
 172                   "kupdate=%d range_cyclic=%d background=%d reason=%s",
 173                   __entry->name,
 174                   MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev),
 175                   __entry->nr_pages,
 176                   __entry->sync_mode,
 177                   __entry->for_kupdate,
 178                   __entry->range_cyclic,
 179                   __entry->for_background,
 180                   __print_symbolic(__entry->reason, WB_WORK_REASON)
 181         )
 182 );
 183 #define DEFINE_WRITEBACK_WORK_EVENT(name) \
 184 DEFINE_EVENT(writeback_work_class, name, \
 185         TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
 186         TP_ARGS(bdi, work))
 187 DEFINE_WRITEBACK_WORK_EVENT(writeback_queue);
 188 DEFINE_WRITEBACK_WORK_EVENT(writeback_exec);
 189 DEFINE_WRITEBACK_WORK_EVENT(writeback_start);
 190 DEFINE_WRITEBACK_WORK_EVENT(writeback_written);
 191 DEFINE_WRITEBACK_WORK_EVENT(writeback_wait);
 192
 193 TRACE_EVENT(writeback_pages_written,
 194         TP_PROTO(long pages_written),
 195         TP_ARGS(pages_written),
 196         TP_STRUCT__entry(
 197                 __field(long,           pages)
 198         ),
 199         TP_fast_assign(
 200                 __entry->pages          = pages_written;
 201         ),
 202         TP_printk("%ld", __entry->pages)
 203 );
 204
 205 DECLARE_EVENT_CLASS(writeback_class,
 206         TP_PROTO(struct backing_dev_info *bdi),
 207         TP_ARGS(bdi),
 208         TP_STRUCT__entry(
 209                 __array(char, name, 32)
 210         ),
 211         TP_fast_assign(
 212                 strncpy(__entry->name, dev_name(bdi->dev), 32);
 213         ),
 214         TP_printk("bdi %s",
 215                   __entry->name
 216         )
 217 );
 218 #define DEFINE_WRITEBACK_EVENT(name) \
 219 DEFINE_EVENT(writeback_class, name, \
 220         TP_PROTO(struct backing_dev_info *bdi), \
 221         TP_ARGS(bdi))
 222
 223 DEFINE_WRITEBACK_EVENT(writeback_nowork);
 224 DEFINE_WRITEBACK_EVENT(writeback_wake_background);
 225 DEFINE_WRITEBACK_EVENT(writeback_bdi_register);
 226 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister);
 227
 228 DECLARE_EVENT_CLASS(wbc_class,
 229         TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
 230         TP_ARGS(wbc, bdi),
 231         TP_STRUCT__entry(
 232                 __array(char, name, 32)
 233                 __field(long, nr_to_write)
 234                 __field(long, pages_skipped)
 235                 __field(int, sync_mode)
 236                 __field(int, for_kupdate)
 237                 __field(int, for_background)
 238                 __field(int, for_reclaim)
 239                 __field(int, range_cyclic)
 240                 __field(long, range_start)
 241                 __field(long, range_end)
 242         ),
 243
 244         TP_fast_assign(
 245                 strncpy(__entry->name, dev_name(bdi->dev), 32);
 246                 __entry->nr_to_write    = wbc->nr_to_write;
 247                 __entry->pages_skipped  = wbc->pages_skipped;
 248                 __entry->sync_mode      = wbc->sync_mode;
 249                 __entry->for_kupdate    = wbc->for_kupdate;
 250                 __entry->for_background = wbc->for_background;
 251                 __entry->for_reclaim    = wbc->for_reclaim;
 252                 __entry->range_cyclic   = wbc->range_cyclic;
 253                 __entry->range_start    = (long)wbc->range_start;
 254                 __entry->range_end      = (long)wbc->range_end;
 255         ),
 256
 257         TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
 258                 "bgrd=%d reclm=%d cyclic=%d "
 259                 "start=0x%lx end=0x%lx",
 260                 __entry->name,
 261                 __entry->nr_to_write,
 262                 __entry->pages_skipped,
 263                 __entry->sync_mode,
 264                 __entry->for_kupdate,
 265                 __entry->for_background,
 266                 __entry->for_reclaim,
 267                 __entry->range_cyclic,
 268                 __entry->range_start,
 269                 __entry->range_end)
 270 )
 271
 272 #define DEFINE_WBC_EVENT(name) \
 273 DEFINE_EVENT(wbc_class, name, \
 274         TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
 275         TP_ARGS(wbc, bdi))
 276 DEFINE_WBC_EVENT(wbc_writepage);
 277
 278 TRACE_EVENT(writeback_queue_io,
 279         TP_PROTO(struct bdi_writeback *wb,
 280                  struct wb_writeback_work *work,
 281                  int moved),
 282         TP_ARGS(wb, work, moved),
 283         TP_STRUCT__entry(
 284                 __array(char,           name, 32)
 285                 __field(unsigned long,  older)
 286                 __field(long,           age)
 287                 __field(int,            moved)
 288                 __field(int,            reason)
 289         ),
 290         TP_fast_assign(
 291                 unsigned long *older_than_this = work->older_than_this;
 292                 strncpy(__entry->name, dev_name(wb->bdi->dev), 32);
 293                 __entry->older  = older_than_this ?  *older_than_this : 0;
 294                 __entry->age    = older_than_this ?
 295                                   (jiffies - *older_than_this) * 1000 / HZ : -1;
 296                 __entry->moved  = moved;
 297                 __entry->reason = work->reason;
 298         ),
 299         TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s",
 300                 __entry->name,
 301                 __entry->older, /* older_than_this in jiffies */
 302                 __entry->age,   /* older_than_this in relative milliseconds */
 303                 __entry->moved,
 304                 __print_symbolic(__entry->reason, WB_WORK_REASON)
 305         )
 306 );
 307
 308 TRACE_EVENT(global_dirty_state,
 309
 310         TP_PROTO(unsigned long background_thresh,
 311                  unsigned long dirty_thresh
 312         ),
 313
 314         TP_ARGS(background_thresh,
 315                 dirty_thresh
 316         ),
 317
 318         TP_STRUCT__entry(
 319                 __field(unsigned long,  nr_dirty)
 320                 __field(unsigned long,  nr_writeback)
 321                 __field(unsigned long,  nr_unstable)
 322                 __field(unsigned long,  background_thresh)
 323                 __field(unsigned long,  dirty_thresh)
 324                 __field(unsigned long,  dirty_limit)
 325                 __field(unsigned long,  nr_dirtied)
 326                 __field(unsigned long,  nr_written)
 327         ),
 328
 329         TP_fast_assign(
 330                 __entry->nr_dirty       = global_page_state(NR_FILE_DIRTY);
 331                 __entry->nr_writeback   = global_page_state(NR_WRITEBACK);
 332                 __entry->nr_unstable    = global_page_state(NR_UNSTABLE_NFS);
 333                 __entry->nr_dirtied     = global_page_state(NR_DIRTIED);
 334                 __entry->nr_written     = global_page_state(NR_WRITTEN);
 335                 __entry->background_thresh = background_thresh;
 336                 __entry->dirty_thresh   = dirty_thresh;
 337                 __entry->dirty_limit = global_dirty_limit;
 338         ),
 339
 340         TP_printk("dirty=%lu writeback=%lu unstable=%lu "
 341                   "bg_thresh=%lu thresh=%lu limit=%lu "
 342                   "dirtied=%lu written=%lu",
 343                   __entry->nr_dirty,
 344                   __entry->nr_writeback,
 345                   __entry->nr_unstable,
 346                   __entry->background_thresh,
 347                   __entry->dirty_thresh,
 348                   __entry->dirty_limit,
 349                   __entry->nr_dirtied,
 350                   __entry->nr_written
 351         )
 352 );
 353
 354 #define KBps(x)                 ((x) << (PAGE_SHIFT - 10))
 355
 356 TRACE_EVENT(bdi_dirty_ratelimit,
 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
 364         TP_STRUCT__entry(
 365                 __array(char,           bdi, 32)
 366                 __field(unsigned long,  write_bw)
 367                 __field(unsigned long,  avg_write_bw)
 368                 __field(unsigned long,  dirty_rate)
 369                 __field(unsigned long,  dirty_ratelimit)
 370                 __field(unsigned long,  task_ratelimit)
 371                 __field(unsigned long,  balanced_dirty_ratelimit)
 372         ),
 373
 374         TP_fast_assign(
 375                 strlcpy(__entry->bdi, dev_name(bdi->dev), 32);
 376                 __entry->write_bw       = KBps(bdi->write_bandwidth);
 377                 __entry->avg_write_bw   = KBps(bdi->avg_write_bandwidth);
 378                 __entry->dirty_rate     = KBps(dirty_rate);
 379                 __entry->dirty_ratelimit = KBps(bdi->dirty_ratelimit);
 380                 __entry->task_ratelimit = KBps(task_ratelimit);
 381                 __entry->balanced_dirty_ratelimit =
 382                                           KBps(bdi->balanced_dirty_ratelimit);
 383         ),
 384
 385         TP_printk("bdi %s: "
 386                   "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
 387                   "dirty_ratelimit=%lu task_ratelimit=%lu "
 388                   "balanced_dirty_ratelimit=%lu",
 389                   __entry->bdi,
 390                   __entry->write_bw,            /* write bandwidth */
 391                   __entry->avg_write_bw,        /* avg write bandwidth */
 392                   __entry->dirty_rate,          /* bdi dirty rate */
 393                   __entry->dirty_ratelimit,     /* base ratelimit */
 394                   __entry->task_ratelimit, /* ratelimit with position control */
 395                   __entry->balanced_dirty_ratelimit /* the balanced ratelimit */
 396         )
 397 );
 398
 399 TRACE_EVENT(balance_dirty_pages,
 400
 401         TP_PROTO(struct backing_dev_info *bdi,
 402                  unsigned long thresh,
 403                  unsigned long bg_thresh,
 404                  unsigned long dirty,
 405                  unsigned long bdi_thresh,
 406                  unsigned long bdi_dirty,
 407                  unsigned long dirty_ratelimit,
 408                  unsigned long task_ratelimit,
 409                  unsigned long dirtied,
 410                  unsigned long period,
 411                  long pause,
 412                  unsigned long start_time),
 413
 414         TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
 415                 dirty_ratelimit, task_ratelimit,
 416                 dirtied, period, pause, start_time),
 417
 418         TP_STRUCT__entry(
 419                 __array(         char,  bdi, 32)
 420                 __field(unsigned long,  limit)
 421                 __field(unsigned long,  setpoint)
 422                 __field(unsigned long,  dirty)
 423                 __field(unsigned long,  bdi_setpoint)
 424                 __field(unsigned long,  bdi_dirty)
 425                 __field(unsigned long,  dirty_ratelimit)
 426                 __field(unsigned long,  task_ratelimit)
 427                 __field(unsigned int,   dirtied)
 428                 __field(unsigned int,   dirtied_pause)
 429                 __field(unsigned long,  paused)
 430                 __field(         long,  pause)
 431                 __field(unsigned long,  period)
 432                 __field(         long,  think)
 433         ),
 434
 435         TP_fast_assign(
 436                 unsigned long freerun = (thresh + bg_thresh) / 2;
 437                 strlcpy(__entry->bdi, dev_name(bdi->dev), 32);
 438
 439                 __entry->limit          = global_dirty_limit;
 440                 __entry->setpoint       = (global_dirty_limit + freerun) / 2;
 441                 __entry->dirty          = dirty;
 442                 __entry->bdi_setpoint   = __entry->setpoint *
 443                                                 bdi_thresh / (thresh + 1);
 444                 __entry->bdi_dirty      = bdi_dirty;
 445                 __entry->dirty_ratelimit = KBps(dirty_ratelimit);
 446                 __entry->task_ratelimit = KBps(task_ratelimit);
 447                 __entry->dirtied        = dirtied;
 448                 __entry->dirtied_pause  = current->nr_dirtied_pause;
 449                 __entry->think          = current->dirty_paused_when == 0 ? 0 :
 450                          (long)(jiffies - current->dirty_paused_when) * 1000/HZ;
 451                 __entry->period         = period * 1000 / HZ;
 452                 __entry->pause          = pause * 1000 / HZ;
 453                 __entry->paused         = (jiffies - start_time) * 1000 / HZ;
 454         ),
 455
 456
 457         TP_printk("bdi %s: "
 458                   "limit=%lu setpoint=%lu dirty=%lu "
 459                   "bdi_setpoint=%lu bdi_dirty=%lu "
 460                   "dirty_ratelimit=%lu task_ratelimit=%lu "
 461                   "dirtied=%u dirtied_pause=%u "
 462                   "paused=%lu pause=%ld period=%lu think=%ld",
 463                   __entry->bdi,
 464                   __entry->limit,
 465                   __entry->setpoint,
 466                   __entry->dirty,
 467                   __entry->bdi_setpoint,
 468                   __entry->bdi_dirty,
 469                   __entry->dirty_ratelimit,
 470                   __entry->task_ratelimit,
 471                   __entry->dirtied,
 472                   __entry->dirtied_pause,
 473                   __entry->paused,      /* ms */
 474                   __entry->pause,       /* ms */
 475                   __entry->period,      /* ms */
 476                   __entry->think        /* ms */
 477           )
 478 );
 479
 480 TRACE_EVENT(writeback_sb_inodes_requeue,
 481
 482         TP_PROTO(struct inode *inode),
 483         TP_ARGS(inode),
 484
 485         TP_STRUCT__entry(
 486                 __array(char, name, 32)
 487                 __field(unsigned long, ino)
 488                 __field(unsigned long, state)
 489                 __field(unsigned long, dirtied_when)
 490         ),
 491
 492         TP_fast_assign(
 493                 strncpy(__entry->name,
 494                         dev_name(inode_to_bdi(inode)->dev), 32);
 495                 __entry->ino            = inode->i_ino;
 496                 __entry->state          = inode->i_state;
 497                 __entry->dirtied_when   = inode->dirtied_when;
 498         ),
 499
 500         TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu",
 501                   __entry->name,
 502                   __entry->ino,
 503                   show_inode_state(__entry->state),
 504                   __entry->dirtied_when,
 505                   (jiffies - __entry->dirtied_when) / HZ
 506         )
 507 );
 508
 509 DECLARE_EVENT_CLASS(writeback_congest_waited_template,
 510
 511         TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
 512
 513         TP_ARGS(usec_timeout, usec_delayed),
 514
 515         TP_STRUCT__entry(
 516                 __field(        unsigned int,   usec_timeout    )
 517                 __field(        unsigned int,   usec_delayed    )
 518         ),
 519
 520         TP_fast_assign(
 521                 __entry->usec_timeout   = usec_timeout;
 522                 __entry->usec_delayed   = usec_delayed;
 523         ),
 524
 525         TP_printk("usec_timeout=%u usec_delayed=%u",
 526                         __entry->usec_timeout,
 527                         __entry->usec_delayed)
 528 );
 529
 530 DEFINE_EVENT(writeback_congest_waited_template, writeback_congestion_wait,
 531
 532         TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
 533
 534         TP_ARGS(usec_timeout, usec_delayed)
 535 );
 536
 537 DEFINE_EVENT(writeback_congest_waited_template, writeback_wait_iff_congested,
 538
 539         TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
 540
 541         TP_ARGS(usec_timeout, usec_delayed)
 542 );
 543
 544 DECLARE_EVENT_CLASS(writeback_single_inode_template,
 545
 546         TP_PROTO(struct inode *inode,
 547                  struct writeback_control *wbc,
 548                  unsigned long nr_to_write
 549         ),
 550
 551         TP_ARGS(inode, wbc, nr_to_write),
 552
 553         TP_STRUCT__entry(
 554                 __array(char, name, 32)
 555                 __field(unsigned long, ino)
 556                 __field(unsigned long, state)
 557                 __field(unsigned long, dirtied_when)
 558                 __field(unsigned long, writeback_index)
 559                 __field(long, nr_to_write)
 560                 __field(unsigned long, wrote)
 561         ),
 562
 563         TP_fast_assign(
 564                 strncpy(__entry->name,
 565                         dev_name(inode_to_bdi(inode)->dev), 32);
 566                 __entry->ino            = inode->i_ino;
 567                 __entry->state          = inode->i_state;
 568                 __entry->dirtied_when   = inode->dirtied_when;
 569                 __entry->writeback_index = inode->i_mapping->writeback_index;
 570                 __entry->nr_to_write    = nr_to_write;
 571                 __entry->wrote          = nr_to_write - wbc->nr_to_write;
 572         ),
 573
 574         TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
 575                   "index=%lu to_write=%ld wrote=%lu",
 576                   __entry->name,
 577                   __entry->ino,
 578                   show_inode_state(__entry->state),
 579                   __entry->dirtied_when,
 580                   (jiffies - __entry->dirtied_when) / HZ,
 581                   __entry->writeback_index,
 582                   __entry->nr_to_write,
 583                   __entry->wrote
 584         )
 585 );
 586
 587 DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_start,
 588         TP_PROTO(struct inode *inode,
 589                  struct writeback_control *wbc,
 590                  unsigned long nr_to_write),
 591         TP_ARGS(inode, wbc, nr_to_write)
 592 );
 593
 594 DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode,
 595         TP_PROTO(struct inode *inode,
 596                  struct writeback_control *wbc,
 597                  unsigned long nr_to_write),
 598         TP_ARGS(inode, wbc, nr_to_write)
 599 );
 600
 601 #endif /* _TRACE_WRITEBACK_H */
 602
 603 /* This part must be outside protection */
 604 #include <trace/define_trace.h>