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1/* SPDX-License-Identifier: GPL-2.0 */2#undef TRACE_SYSTEM3#define TRACE_SYSTEM writeback4 5#if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)6#define _TRACE_WRITEBACK_H7 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_REFERENCED, "I_REFERENCED"}, \24 {I_LINKABLE, "I_LINKABLE"}, \25 {I_WB_SWITCH, "I_WB_SWITCH"}, \26 {I_OVL_INUSE, "I_OVL_INUSE"}, \27 {I_CREATING, "I_CREATING"}, \28 {I_DONTCACHE, "I_DONTCACHE"}, \29 {I_SYNC_QUEUED, "I_SYNC_QUEUED"}, \30 {I_PINNING_NETFS_WB, "I_PINNING_NETFS_WB"}, \31 {I_LRU_ISOLATING, "I_LRU_ISOLATING"} \32 )33 34/* enums need to be exported to user space */35#undef EM36#undef EMe37#define EM(a,b) TRACE_DEFINE_ENUM(a);38#define EMe(a,b) TRACE_DEFINE_ENUM(a);39 40#define WB_WORK_REASON \41 EM( WB_REASON_BACKGROUND, "background") \42 EM( WB_REASON_VMSCAN, "vmscan") \43 EM( WB_REASON_SYNC, "sync") \44 EM( WB_REASON_PERIODIC, "periodic") \45 EM( WB_REASON_LAPTOP_TIMER, "laptop_timer") \46 EM( WB_REASON_FS_FREE_SPACE, "fs_free_space") \47 EM( WB_REASON_FORKER_THREAD, "forker_thread") \48 EMe(WB_REASON_FOREIGN_FLUSH, "foreign_flush")49 50WB_WORK_REASON51 52/*53 * Now redefine the EM() and EMe() macros to map the enums to the strings54 * that will be printed in the output.55 */56#undef EM57#undef EMe58#define EM(a,b) { a, b },59#define EMe(a,b) { a, b }60 61struct wb_writeback_work;62 63DECLARE_EVENT_CLASS(writeback_folio_template,64 65 TP_PROTO(struct folio *folio, struct address_space *mapping),66 67 TP_ARGS(folio, mapping),68 69 TP_STRUCT__entry (70 __array(char, name, 32)71 __field(ino_t, ino)72 __field(pgoff_t, index)73 ),74 75 TP_fast_assign(76 strscpy_pad(__entry->name,77 bdi_dev_name(mapping ? inode_to_bdi(mapping->host) :78 NULL), 32);79 __entry->ino = (mapping && mapping->host) ? mapping->host->i_ino : 0;80 __entry->index = folio->index;81 ),82 83 TP_printk("bdi %s: ino=%lu index=%lu",84 __entry->name,85 (unsigned long)__entry->ino,86 __entry->index87 )88);89 90DEFINE_EVENT(writeback_folio_template, writeback_dirty_folio,91 92 TP_PROTO(struct folio *folio, struct address_space *mapping),93 94 TP_ARGS(folio, mapping)95);96 97DEFINE_EVENT(writeback_folio_template, folio_wait_writeback,98 99 TP_PROTO(struct folio *folio, struct address_space *mapping),100 101 TP_ARGS(folio, mapping)102);103 104DECLARE_EVENT_CLASS(writeback_dirty_inode_template,105 106 TP_PROTO(struct inode *inode, int flags),107 108 TP_ARGS(inode, flags),109 110 TP_STRUCT__entry (111 __array(char, name, 32)112 __field(ino_t, ino)113 __field(unsigned long, state)114 __field(unsigned long, flags)115 ),116 117 TP_fast_assign(118 struct backing_dev_info *bdi = inode_to_bdi(inode);119 120 /* may be called for files on pseudo FSes w/ unregistered bdi */121 strscpy_pad(__entry->name, bdi_dev_name(bdi), 32);122 __entry->ino = inode->i_ino;123 __entry->state = inode->i_state;124 __entry->flags = flags;125 ),126 127 TP_printk("bdi %s: ino=%lu state=%s flags=%s",128 __entry->name,129 (unsigned long)__entry->ino,130 show_inode_state(__entry->state),131 show_inode_state(__entry->flags)132 )133);134 135DEFINE_EVENT(writeback_dirty_inode_template, writeback_mark_inode_dirty,136 137 TP_PROTO(struct inode *inode, int flags),138 139 TP_ARGS(inode, flags)140);141 142DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode_start,143 144 TP_PROTO(struct inode *inode, int flags),145 146 TP_ARGS(inode, flags)147);148 149DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode,150 151 TP_PROTO(struct inode *inode, int flags),152 153 TP_ARGS(inode, flags)154);155 156#ifdef CREATE_TRACE_POINTS157#ifdef CONFIG_CGROUP_WRITEBACK158 159static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb)160{161 return cgroup_ino(wb->memcg_css->cgroup);162}163 164static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc)165{166 if (wbc->wb)167 return __trace_wb_assign_cgroup(wbc->wb);168 else169 return 1;170}171#else /* CONFIG_CGROUP_WRITEBACK */172 173static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb)174{175 return 1;176}177 178static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc)179{180 return 1;181}182 183#endif /* CONFIG_CGROUP_WRITEBACK */184#endif /* CREATE_TRACE_POINTS */185 186#ifdef CONFIG_CGROUP_WRITEBACK187TRACE_EVENT(inode_foreign_history,188 189 TP_PROTO(struct inode *inode, struct writeback_control *wbc,190 unsigned int history),191 192 TP_ARGS(inode, wbc, history),193 194 TP_STRUCT__entry(195 __array(char, name, 32)196 __field(ino_t, ino)197 __field(ino_t, cgroup_ino)198 __field(unsigned int, history)199 ),200 201 TP_fast_assign(202 strscpy_pad(__entry->name, bdi_dev_name(inode_to_bdi(inode)), 32);203 __entry->ino = inode->i_ino;204 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);205 __entry->history = history;206 ),207 208 TP_printk("bdi %s: ino=%lu cgroup_ino=%lu history=0x%x",209 __entry->name,210 (unsigned long)__entry->ino,211 (unsigned long)__entry->cgroup_ino,212 __entry->history213 )214);215 216TRACE_EVENT(inode_switch_wbs,217 218 TP_PROTO(struct inode *inode, struct bdi_writeback *old_wb,219 struct bdi_writeback *new_wb),220 221 TP_ARGS(inode, old_wb, new_wb),222 223 TP_STRUCT__entry(224 __array(char, name, 32)225 __field(ino_t, ino)226 __field(ino_t, old_cgroup_ino)227 __field(ino_t, new_cgroup_ino)228 ),229 230 TP_fast_assign(231 strscpy_pad(__entry->name, bdi_dev_name(old_wb->bdi), 32);232 __entry->ino = inode->i_ino;233 __entry->old_cgroup_ino = __trace_wb_assign_cgroup(old_wb);234 __entry->new_cgroup_ino = __trace_wb_assign_cgroup(new_wb);235 ),236 237 TP_printk("bdi %s: ino=%lu old_cgroup_ino=%lu new_cgroup_ino=%lu",238 __entry->name,239 (unsigned long)__entry->ino,240 (unsigned long)__entry->old_cgroup_ino,241 (unsigned long)__entry->new_cgroup_ino242 )243);244 245TRACE_EVENT(track_foreign_dirty,246 247 TP_PROTO(struct folio *folio, struct bdi_writeback *wb),248 249 TP_ARGS(folio, wb),250 251 TP_STRUCT__entry(252 __array(char, name, 32)253 __field(u64, bdi_id)254 __field(ino_t, ino)255 __field(unsigned int, memcg_id)256 __field(ino_t, cgroup_ino)257 __field(ino_t, page_cgroup_ino)258 ),259 260 TP_fast_assign(261 struct address_space *mapping = folio_mapping(folio);262 struct inode *inode = mapping ? mapping->host : NULL;263 264 strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32);265 __entry->bdi_id = wb->bdi->id;266 __entry->ino = inode ? inode->i_ino : 0;267 __entry->memcg_id = wb->memcg_css->id;268 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);269 __entry->page_cgroup_ino = cgroup_ino(folio_memcg(folio)->css.cgroup);270 ),271 272 TP_printk("bdi %s[%llu]: ino=%lu memcg_id=%u cgroup_ino=%lu page_cgroup_ino=%lu",273 __entry->name,274 __entry->bdi_id,275 (unsigned long)__entry->ino,276 __entry->memcg_id,277 (unsigned long)__entry->cgroup_ino,278 (unsigned long)__entry->page_cgroup_ino279 )280);281 282TRACE_EVENT(flush_foreign,283 284 TP_PROTO(struct bdi_writeback *wb, unsigned int frn_bdi_id,285 unsigned int frn_memcg_id),286 287 TP_ARGS(wb, frn_bdi_id, frn_memcg_id),288 289 TP_STRUCT__entry(290 __array(char, name, 32)291 __field(ino_t, cgroup_ino)292 __field(unsigned int, frn_bdi_id)293 __field(unsigned int, frn_memcg_id)294 ),295 296 TP_fast_assign(297 strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32);298 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);299 __entry->frn_bdi_id = frn_bdi_id;300 __entry->frn_memcg_id = frn_memcg_id;301 ),302 303 TP_printk("bdi %s: cgroup_ino=%lu frn_bdi_id=%u frn_memcg_id=%u",304 __entry->name,305 (unsigned long)__entry->cgroup_ino,306 __entry->frn_bdi_id,307 __entry->frn_memcg_id308 )309);310#endif311 312DECLARE_EVENT_CLASS(writeback_write_inode_template,313 314 TP_PROTO(struct inode *inode, struct writeback_control *wbc),315 316 TP_ARGS(inode, wbc),317 318 TP_STRUCT__entry (319 __array(char, name, 32)320 __field(ino_t, ino)321 __field(int, sync_mode)322 __field(ino_t, cgroup_ino)323 ),324 325 TP_fast_assign(326 strscpy_pad(__entry->name,327 bdi_dev_name(inode_to_bdi(inode)), 32);328 __entry->ino = inode->i_ino;329 __entry->sync_mode = wbc->sync_mode;330 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);331 ),332 333 TP_printk("bdi %s: ino=%lu sync_mode=%d cgroup_ino=%lu",334 __entry->name,335 (unsigned long)__entry->ino,336 __entry->sync_mode,337 (unsigned long)__entry->cgroup_ino338 )339);340 341DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode_start,342 343 TP_PROTO(struct inode *inode, struct writeback_control *wbc),344 345 TP_ARGS(inode, wbc)346);347 348DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode,349 350 TP_PROTO(struct inode *inode, struct writeback_control *wbc),351 352 TP_ARGS(inode, wbc)353);354 355DECLARE_EVENT_CLASS(writeback_work_class,356 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work),357 TP_ARGS(wb, work),358 TP_STRUCT__entry(359 __array(char, name, 32)360 __field(long, nr_pages)361 __field(dev_t, sb_dev)362 __field(int, sync_mode)363 __field(int, for_kupdate)364 __field(int, range_cyclic)365 __field(int, for_background)366 __field(int, reason)367 __field(ino_t, cgroup_ino)368 ),369 TP_fast_assign(370 strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32);371 __entry->nr_pages = work->nr_pages;372 __entry->sb_dev = work->sb ? work->sb->s_dev : 0;373 __entry->sync_mode = work->sync_mode;374 __entry->for_kupdate = work->for_kupdate;375 __entry->range_cyclic = work->range_cyclic;376 __entry->for_background = work->for_background;377 __entry->reason = work->reason;378 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);379 ),380 TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d "381 "kupdate=%d range_cyclic=%d background=%d reason=%s cgroup_ino=%lu",382 __entry->name,383 MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev),384 __entry->nr_pages,385 __entry->sync_mode,386 __entry->for_kupdate,387 __entry->range_cyclic,388 __entry->for_background,389 __print_symbolic(__entry->reason, WB_WORK_REASON),390 (unsigned long)__entry->cgroup_ino391 )392);393#define DEFINE_WRITEBACK_WORK_EVENT(name) \394DEFINE_EVENT(writeback_work_class, name, \395 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \396 TP_ARGS(wb, work))397DEFINE_WRITEBACK_WORK_EVENT(writeback_queue);398DEFINE_WRITEBACK_WORK_EVENT(writeback_exec);399DEFINE_WRITEBACK_WORK_EVENT(writeback_start);400DEFINE_WRITEBACK_WORK_EVENT(writeback_written);401DEFINE_WRITEBACK_WORK_EVENT(writeback_wait);402 403TRACE_EVENT(writeback_pages_written,404 TP_PROTO(long pages_written),405 TP_ARGS(pages_written),406 TP_STRUCT__entry(407 __field(long, pages)408 ),409 TP_fast_assign(410 __entry->pages = pages_written;411 ),412 TP_printk("%ld", __entry->pages)413);414 415DECLARE_EVENT_CLASS(writeback_class,416 TP_PROTO(struct bdi_writeback *wb),417 TP_ARGS(wb),418 TP_STRUCT__entry(419 __array(char, name, 32)420 __field(ino_t, cgroup_ino)421 ),422 TP_fast_assign(423 strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32);424 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);425 ),426 TP_printk("bdi %s: cgroup_ino=%lu",427 __entry->name,428 (unsigned long)__entry->cgroup_ino429 )430);431#define DEFINE_WRITEBACK_EVENT(name) \432DEFINE_EVENT(writeback_class, name, \433 TP_PROTO(struct bdi_writeback *wb), \434 TP_ARGS(wb))435 436DEFINE_WRITEBACK_EVENT(writeback_wake_background);437 438TRACE_EVENT(writeback_bdi_register,439 TP_PROTO(struct backing_dev_info *bdi),440 TP_ARGS(bdi),441 TP_STRUCT__entry(442 __array(char, name, 32)443 ),444 TP_fast_assign(445 strscpy_pad(__entry->name, bdi_dev_name(bdi), 32);446 ),447 TP_printk("bdi %s",448 __entry->name449 )450);451 452DECLARE_EVENT_CLASS(wbc_class,453 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),454 TP_ARGS(wbc, bdi),455 TP_STRUCT__entry(456 __array(char, name, 32)457 __field(long, nr_to_write)458 __field(long, pages_skipped)459 __field(int, sync_mode)460 __field(int, for_kupdate)461 __field(int, for_background)462 __field(int, for_reclaim)463 __field(int, range_cyclic)464 __field(long, range_start)465 __field(long, range_end)466 __field(ino_t, cgroup_ino)467 ),468 469 TP_fast_assign(470 strscpy_pad(__entry->name, bdi_dev_name(bdi), 32);471 __entry->nr_to_write = wbc->nr_to_write;472 __entry->pages_skipped = wbc->pages_skipped;473 __entry->sync_mode = wbc->sync_mode;474 __entry->for_kupdate = wbc->for_kupdate;475 __entry->for_background = wbc->for_background;476 __entry->for_reclaim = wbc->for_reclaim;477 __entry->range_cyclic = wbc->range_cyclic;478 __entry->range_start = (long)wbc->range_start;479 __entry->range_end = (long)wbc->range_end;480 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);481 ),482 483 TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "484 "bgrd=%d reclm=%d cyclic=%d "485 "start=0x%lx end=0x%lx cgroup_ino=%lu",486 __entry->name,487 __entry->nr_to_write,488 __entry->pages_skipped,489 __entry->sync_mode,490 __entry->for_kupdate,491 __entry->for_background,492 __entry->for_reclaim,493 __entry->range_cyclic,494 __entry->range_start,495 __entry->range_end,496 (unsigned long)__entry->cgroup_ino497 )498)499 500#define DEFINE_WBC_EVENT(name) \501DEFINE_EVENT(wbc_class, name, \502 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \503 TP_ARGS(wbc, bdi))504DEFINE_WBC_EVENT(wbc_writepage);505 506TRACE_EVENT(writeback_queue_io,507 TP_PROTO(struct bdi_writeback *wb,508 struct wb_writeback_work *work,509 unsigned long dirtied_before,510 int moved),511 TP_ARGS(wb, work, dirtied_before, moved),512 TP_STRUCT__entry(513 __array(char, name, 32)514 __field(unsigned long, older)515 __field(long, age)516 __field(int, moved)517 __field(int, reason)518 __field(ino_t, cgroup_ino)519 ),520 TP_fast_assign(521 strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32);522 __entry->older = dirtied_before;523 __entry->age = (jiffies - dirtied_before) * 1000 / HZ;524 __entry->moved = moved;525 __entry->reason = work->reason;526 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);527 ),528 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s cgroup_ino=%lu",529 __entry->name,530 __entry->older, /* dirtied_before in jiffies */531 __entry->age, /* dirtied_before in relative milliseconds */532 __entry->moved,533 __print_symbolic(__entry->reason, WB_WORK_REASON),534 (unsigned long)__entry->cgroup_ino535 )536);537 538TRACE_EVENT(global_dirty_state,539 540 TP_PROTO(unsigned long background_thresh,541 unsigned long dirty_thresh542 ),543 544 TP_ARGS(background_thresh,545 dirty_thresh546 ),547 548 TP_STRUCT__entry(549 __field(unsigned long, nr_dirty)550 __field(unsigned long, nr_writeback)551 __field(unsigned long, background_thresh)552 __field(unsigned long, dirty_thresh)553 __field(unsigned long, dirty_limit)554 __field(unsigned long, nr_dirtied)555 __field(unsigned long, nr_written)556 ),557 558 TP_fast_assign(559 __entry->nr_dirty = global_node_page_state(NR_FILE_DIRTY);560 __entry->nr_writeback = global_node_page_state(NR_WRITEBACK);561 __entry->nr_dirtied = global_node_page_state(NR_DIRTIED);562 __entry->nr_written = global_node_page_state(NR_WRITTEN);563 __entry->background_thresh = background_thresh;564 __entry->dirty_thresh = dirty_thresh;565 __entry->dirty_limit = global_wb_domain.dirty_limit;566 ),567 568 TP_printk("dirty=%lu writeback=%lu "569 "bg_thresh=%lu thresh=%lu limit=%lu "570 "dirtied=%lu written=%lu",571 __entry->nr_dirty,572 __entry->nr_writeback,573 __entry->background_thresh,574 __entry->dirty_thresh,575 __entry->dirty_limit,576 __entry->nr_dirtied,577 __entry->nr_written578 )579);580 581#define KBps(x) ((x) << (PAGE_SHIFT - 10))582 583TRACE_EVENT(bdi_dirty_ratelimit,584 585 TP_PROTO(struct bdi_writeback *wb,586 unsigned long dirty_rate,587 unsigned long task_ratelimit),588 589 TP_ARGS(wb, dirty_rate, task_ratelimit),590 591 TP_STRUCT__entry(592 __array(char, bdi, 32)593 __field(unsigned long, write_bw)594 __field(unsigned long, avg_write_bw)595 __field(unsigned long, dirty_rate)596 __field(unsigned long, dirty_ratelimit)597 __field(unsigned long, task_ratelimit)598 __field(unsigned long, balanced_dirty_ratelimit)599 __field(ino_t, cgroup_ino)600 ),601 602 TP_fast_assign(603 strscpy_pad(__entry->bdi, bdi_dev_name(wb->bdi), 32);604 __entry->write_bw = KBps(wb->write_bandwidth);605 __entry->avg_write_bw = KBps(wb->avg_write_bandwidth);606 __entry->dirty_rate = KBps(dirty_rate);607 __entry->dirty_ratelimit = KBps(wb->dirty_ratelimit);608 __entry->task_ratelimit = KBps(task_ratelimit);609 __entry->balanced_dirty_ratelimit =610 KBps(wb->balanced_dirty_ratelimit);611 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);612 ),613 614 TP_printk("bdi %s: "615 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "616 "dirty_ratelimit=%lu task_ratelimit=%lu "617 "balanced_dirty_ratelimit=%lu cgroup_ino=%lu",618 __entry->bdi,619 __entry->write_bw, /* write bandwidth */620 __entry->avg_write_bw, /* avg write bandwidth */621 __entry->dirty_rate, /* bdi dirty rate */622 __entry->dirty_ratelimit, /* base ratelimit */623 __entry->task_ratelimit, /* ratelimit with position control */624 __entry->balanced_dirty_ratelimit, /* the balanced ratelimit */625 (unsigned long)__entry->cgroup_ino626 )627);628 629TRACE_EVENT(balance_dirty_pages,630 631 TP_PROTO(struct bdi_writeback *wb,632 unsigned long thresh,633 unsigned long bg_thresh,634 unsigned long dirty,635 unsigned long bdi_thresh,636 unsigned long bdi_dirty,637 unsigned long dirty_ratelimit,638 unsigned long task_ratelimit,639 unsigned long dirtied,640 unsigned long period,641 long pause,642 unsigned long start_time),643 644 TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,645 dirty_ratelimit, task_ratelimit,646 dirtied, period, pause, start_time),647 648 TP_STRUCT__entry(649 __array( char, bdi, 32)650 __field(unsigned long, limit)651 __field(unsigned long, setpoint)652 __field(unsigned long, dirty)653 __field(unsigned long, bdi_setpoint)654 __field(unsigned long, bdi_dirty)655 __field(unsigned long, dirty_ratelimit)656 __field(unsigned long, task_ratelimit)657 __field(unsigned int, dirtied)658 __field(unsigned int, dirtied_pause)659 __field(unsigned long, paused)660 __field( long, pause)661 __field(unsigned long, period)662 __field( long, think)663 __field(ino_t, cgroup_ino)664 ),665 666 TP_fast_assign(667 unsigned long freerun = (thresh + bg_thresh) / 2;668 strscpy_pad(__entry->bdi, bdi_dev_name(wb->bdi), 32);669 670 __entry->limit = global_wb_domain.dirty_limit;671 __entry->setpoint = (global_wb_domain.dirty_limit +672 freerun) / 2;673 __entry->dirty = dirty;674 __entry->bdi_setpoint = __entry->setpoint *675 bdi_thresh / (thresh + 1);676 __entry->bdi_dirty = bdi_dirty;677 __entry->dirty_ratelimit = KBps(dirty_ratelimit);678 __entry->task_ratelimit = KBps(task_ratelimit);679 __entry->dirtied = dirtied;680 __entry->dirtied_pause = current->nr_dirtied_pause;681 __entry->think = current->dirty_paused_when == 0 ? 0 :682 (long)(jiffies - current->dirty_paused_when) * 1000/HZ;683 __entry->period = period * 1000 / HZ;684 __entry->pause = pause * 1000 / HZ;685 __entry->paused = (jiffies - start_time) * 1000 / HZ;686 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);687 ),688 689 690 TP_printk("bdi %s: "691 "limit=%lu setpoint=%lu dirty=%lu "692 "bdi_setpoint=%lu bdi_dirty=%lu "693 "dirty_ratelimit=%lu task_ratelimit=%lu "694 "dirtied=%u dirtied_pause=%u "695 "paused=%lu pause=%ld period=%lu think=%ld cgroup_ino=%lu",696 __entry->bdi,697 __entry->limit,698 __entry->setpoint,699 __entry->dirty,700 __entry->bdi_setpoint,701 __entry->bdi_dirty,702 __entry->dirty_ratelimit,703 __entry->task_ratelimit,704 __entry->dirtied,705 __entry->dirtied_pause,706 __entry->paused, /* ms */707 __entry->pause, /* ms */708 __entry->period, /* ms */709 __entry->think, /* ms */710 (unsigned long)__entry->cgroup_ino711 )712);713 714TRACE_EVENT(writeback_sb_inodes_requeue,715 716 TP_PROTO(struct inode *inode),717 TP_ARGS(inode),718 719 TP_STRUCT__entry(720 __array(char, name, 32)721 __field(ino_t, ino)722 __field(unsigned long, state)723 __field(unsigned long, dirtied_when)724 __field(ino_t, cgroup_ino)725 ),726 727 TP_fast_assign(728 strscpy_pad(__entry->name,729 bdi_dev_name(inode_to_bdi(inode)), 32);730 __entry->ino = inode->i_ino;731 __entry->state = inode->i_state;732 __entry->dirtied_when = inode->dirtied_when;733 __entry->cgroup_ino = __trace_wb_assign_cgroup(inode_to_wb(inode));734 ),735 736 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu cgroup_ino=%lu",737 __entry->name,738 (unsigned long)__entry->ino,739 show_inode_state(__entry->state),740 __entry->dirtied_when,741 (jiffies - __entry->dirtied_when) / HZ,742 (unsigned long)__entry->cgroup_ino743 )744);745 746DECLARE_EVENT_CLASS(writeback_single_inode_template,747 748 TP_PROTO(struct inode *inode,749 struct writeback_control *wbc,750 unsigned long nr_to_write751 ),752 753 TP_ARGS(inode, wbc, nr_to_write),754 755 TP_STRUCT__entry(756 __array(char, name, 32)757 __field(ino_t, ino)758 __field(unsigned long, state)759 __field(unsigned long, dirtied_when)760 __field(unsigned long, writeback_index)761 __field(long, nr_to_write)762 __field(unsigned long, wrote)763 __field(ino_t, cgroup_ino)764 ),765 766 TP_fast_assign(767 strscpy_pad(__entry->name,768 bdi_dev_name(inode_to_bdi(inode)), 32);769 __entry->ino = inode->i_ino;770 __entry->state = inode->i_state;771 __entry->dirtied_when = inode->dirtied_when;772 __entry->writeback_index = inode->i_mapping->writeback_index;773 __entry->nr_to_write = nr_to_write;774 __entry->wrote = nr_to_write - wbc->nr_to_write;775 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);776 ),777 778 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "779 "index=%lu to_write=%ld wrote=%lu cgroup_ino=%lu",780 __entry->name,781 (unsigned long)__entry->ino,782 show_inode_state(__entry->state),783 __entry->dirtied_when,784 (jiffies - __entry->dirtied_when) / HZ,785 __entry->writeback_index,786 __entry->nr_to_write,787 __entry->wrote,788 (unsigned long)__entry->cgroup_ino789 )790);791 792DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_start,793 TP_PROTO(struct inode *inode,794 struct writeback_control *wbc,795 unsigned long nr_to_write),796 TP_ARGS(inode, wbc, nr_to_write)797);798 799DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode,800 TP_PROTO(struct inode *inode,801 struct writeback_control *wbc,802 unsigned long nr_to_write),803 TP_ARGS(inode, wbc, nr_to_write)804);805 806DECLARE_EVENT_CLASS(writeback_inode_template,807 TP_PROTO(struct inode *inode),808 809 TP_ARGS(inode),810 811 TP_STRUCT__entry(812 __field( dev_t, dev )813 __field( ino_t, ino )814 __field(unsigned long, state )815 __field( __u16, mode )816 __field(unsigned long, dirtied_when )817 ),818 819 TP_fast_assign(820 __entry->dev = inode->i_sb->s_dev;821 __entry->ino = inode->i_ino;822 __entry->state = inode->i_state;823 __entry->mode = inode->i_mode;824 __entry->dirtied_when = inode->dirtied_when;825 ),826 827 TP_printk("dev %d,%d ino %lu dirtied %lu state %s mode 0%o",828 MAJOR(__entry->dev), MINOR(__entry->dev),829 (unsigned long)__entry->ino, __entry->dirtied_when,830 show_inode_state(__entry->state), __entry->mode)831);832 833DEFINE_EVENT(writeback_inode_template, writeback_lazytime,834 TP_PROTO(struct inode *inode),835 836 TP_ARGS(inode)837);838 839DEFINE_EVENT(writeback_inode_template, writeback_lazytime_iput,840 TP_PROTO(struct inode *inode),841 842 TP_ARGS(inode)843);844 845DEFINE_EVENT(writeback_inode_template, writeback_dirty_inode_enqueue,846 847 TP_PROTO(struct inode *inode),848 849 TP_ARGS(inode)850);851 852/*853 * Inode writeback list tracking.854 */855 856DEFINE_EVENT(writeback_inode_template, sb_mark_inode_writeback,857 TP_PROTO(struct inode *inode),858 TP_ARGS(inode)859);860 861DEFINE_EVENT(writeback_inode_template, sb_clear_inode_writeback,862 TP_PROTO(struct inode *inode),863 TP_ARGS(inode)864);865 866#endif /* _TRACE_WRITEBACK_H */867 868/* This part must be outside protection */869#include <trace/define_trace.h>870