| 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/backing-dev.h> |
| 8 | #include <linux/writeback.h> |
| 9 | #include <linux/version.h> |
| 10 | |
| 11 | #ifndef _TRACE_WRITEBACK_DEF_ |
| 12 | #define _TRACE_WRITEBACK_DEF_ |
| 13 | /* Have to duplicate it here from fs/fs-writeback.c */ |
| 14 | struct wb_writeback_work { |
| 15 | long nr_pages; |
| 16 | struct super_block *sb; |
| 17 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) |
| 18 | unsigned long *older_than_this; |
| 19 | #endif |
| 20 | enum writeback_sync_modes sync_mode; |
| 21 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) |
| 22 | unsigned int tagged_writepages:1; |
| 23 | #endif |
| 24 | unsigned int for_kupdate:1; |
| 25 | unsigned int range_cyclic:1; |
| 26 | unsigned int for_background:1; |
| 27 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 28 | enum wb_reason reason; /* why was writeback initiated? */ |
| 29 | #endif |
| 30 | |
| 31 | struct list_head list; /* pending work list */ |
| 32 | struct completion *done; /* set if the caller waits */ |
| 33 | }; |
| 34 | static inline struct backing_dev_info *inode_to_bdi(struct inode *inode) |
| 35 | { |
| 36 | struct super_block *sb = inode->i_sb; |
| 37 | |
| 38 | if (strcmp(sb->s_type->name, "bdev") == 0) |
| 39 | return inode->i_mapping->backing_dev_info; |
| 40 | |
| 41 | return sb->s_bdi; |
| 42 | } |
| 43 | #endif |
| 44 | |
| 45 | #define show_inode_state(state) \ |
| 46 | __print_flags(state, "|", \ |
| 47 | {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \ |
| 48 | {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \ |
| 49 | {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \ |
| 50 | {I_NEW, "I_NEW"}, \ |
| 51 | {I_WILL_FREE, "I_WILL_FREE"}, \ |
| 52 | {I_FREEING, "I_FREEING"}, \ |
| 53 | {I_CLEAR, "I_CLEAR"}, \ |
| 54 | {I_SYNC, "I_SYNC"}, \ |
| 55 | {I_REFERENCED, "I_REFERENCED"} \ |
| 56 | ) |
| 57 | |
| 58 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 59 | #define WB_WORK_REASON \ |
| 60 | {WB_REASON_BACKGROUND, "background"}, \ |
| 61 | {WB_REASON_TRY_TO_FREE_PAGES, "try_to_free_pages"}, \ |
| 62 | {WB_REASON_SYNC, "sync"}, \ |
| 63 | {WB_REASON_PERIODIC, "periodic"}, \ |
| 64 | {WB_REASON_LAPTOP_TIMER, "laptop_timer"}, \ |
| 65 | {WB_REASON_FREE_MORE_MEM, "free_more_memory"}, \ |
| 66 | {WB_REASON_FS_FREE_SPACE, "fs_free_space"}, \ |
| 67 | {WB_REASON_FORKER_THREAD, "forker_thread"} |
| 68 | #endif |
| 69 | |
| 70 | DECLARE_EVENT_CLASS(writeback_work_class, |
| 71 | TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), |
| 72 | TP_ARGS(bdi, work), |
| 73 | TP_STRUCT__entry( |
| 74 | __array(char, name, 32) |
| 75 | __field(long, nr_pages) |
| 76 | __field(dev_t, sb_dev) |
| 77 | __field(int, sync_mode) |
| 78 | __field(int, for_kupdate) |
| 79 | __field(int, range_cyclic) |
| 80 | __field(int, for_background) |
| 81 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 82 | __field(int, reason) |
| 83 | #endif |
| 84 | ), |
| 85 | TP_fast_assign( |
| 86 | tp_memcpy(name, dev_name(bdi->dev ? bdi->dev : |
| 87 | default_backing_dev_info.dev), 32) |
| 88 | tp_assign(nr_pages, work->nr_pages) |
| 89 | tp_assign(sb_dev, work->sb ? work->sb->s_dev : 0) |
| 90 | tp_assign(sync_mode, work->sync_mode) |
| 91 | tp_assign(for_kupdate, work->for_kupdate) |
| 92 | tp_assign(range_cyclic, work->range_cyclic) |
| 93 | tp_assign(for_background, work->for_background) |
| 94 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 95 | tp_assign(reason, work->reason) |
| 96 | #endif |
| 97 | ), |
| 98 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 99 | TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d " |
| 100 | "kupdate=%d range_cyclic=%d background=%d reason=%s", |
| 101 | __entry->name, |
| 102 | MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev), |
| 103 | __entry->nr_pages, |
| 104 | __entry->sync_mode, |
| 105 | __entry->for_kupdate, |
| 106 | __entry->range_cyclic, |
| 107 | __entry->for_background, |
| 108 | __print_symbolic(__entry->reason, WB_WORK_REASON) |
| 109 | ) |
| 110 | #else |
| 111 | TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d " |
| 112 | "kupdate=%d range_cyclic=%d background=%d", |
| 113 | __entry->name, |
| 114 | MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev), |
| 115 | __entry->nr_pages, |
| 116 | __entry->sync_mode, |
| 117 | __entry->for_kupdate, |
| 118 | __entry->range_cyclic, |
| 119 | __entry->for_background |
| 120 | ) |
| 121 | #endif |
| 122 | ) |
| 123 | #define DEFINE_WRITEBACK_WORK_EVENT(name) \ |
| 124 | DEFINE_EVENT(writeback_work_class, name, \ |
| 125 | TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \ |
| 126 | TP_ARGS(bdi, work)) |
| 127 | DEFINE_WRITEBACK_WORK_EVENT(writeback_nothread) |
| 128 | DEFINE_WRITEBACK_WORK_EVENT(writeback_queue) |
| 129 | DEFINE_WRITEBACK_WORK_EVENT(writeback_exec) |
| 130 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) |
| 131 | DEFINE_WRITEBACK_WORK_EVENT(writeback_start) |
| 132 | DEFINE_WRITEBACK_WORK_EVENT(writeback_written) |
| 133 | DEFINE_WRITEBACK_WORK_EVENT(writeback_wait) |
| 134 | #endif |
| 135 | |
| 136 | TRACE_EVENT(writeback_pages_written, |
| 137 | TP_PROTO(long pages_written), |
| 138 | TP_ARGS(pages_written), |
| 139 | TP_STRUCT__entry( |
| 140 | __field(long, pages) |
| 141 | ), |
| 142 | TP_fast_assign( |
| 143 | tp_assign(pages, pages_written) |
| 144 | ), |
| 145 | TP_printk("%ld", __entry->pages) |
| 146 | ) |
| 147 | |
| 148 | DECLARE_EVENT_CLASS(writeback_class, |
| 149 | TP_PROTO(struct backing_dev_info *bdi), |
| 150 | TP_ARGS(bdi), |
| 151 | TP_STRUCT__entry( |
| 152 | __array(char, name, 32) |
| 153 | ), |
| 154 | TP_fast_assign( |
| 155 | tp_memcpy(name, dev_name(bdi->dev), 32) |
| 156 | ), |
| 157 | TP_printk("bdi %s", |
| 158 | __entry->name |
| 159 | ) |
| 160 | ) |
| 161 | #define DEFINE_WRITEBACK_EVENT(name) \ |
| 162 | DEFINE_EVENT(writeback_class, name, \ |
| 163 | TP_PROTO(struct backing_dev_info *bdi), \ |
| 164 | TP_ARGS(bdi)) |
| 165 | |
| 166 | #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \ |
| 167 | DEFINE_EVENT_MAP(writeback_class, name, map, \ |
| 168 | TP_PROTO(struct backing_dev_info *bdi), \ |
| 169 | TP_ARGS(bdi)) |
| 170 | |
| 171 | DEFINE_WRITEBACK_EVENT(writeback_nowork) |
| 172 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)) |
| 173 | DEFINE_WRITEBACK_EVENT(writeback_wake_background) |
| 174 | #endif |
| 175 | DEFINE_WRITEBACK_EVENT(writeback_wake_thread) |
| 176 | DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread) |
| 177 | DEFINE_WRITEBACK_EVENT(writeback_bdi_register) |
| 178 | DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister) |
| 179 | DEFINE_WRITEBACK_EVENT(writeback_thread_start) |
| 180 | DEFINE_WRITEBACK_EVENT(writeback_thread_stop) |
| 181 | #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0)) |
| 182 | DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start) |
| 183 | DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait) |
| 184 | |
| 185 | TRACE_EVENT_MAP(balance_dirty_written, |
| 186 | |
| 187 | writeback_balance_dirty_written, |
| 188 | |
| 189 | TP_PROTO(struct backing_dev_info *bdi, int written), |
| 190 | |
| 191 | TP_ARGS(bdi, written), |
| 192 | |
| 193 | TP_STRUCT__entry( |
| 194 | __array(char, name, 32) |
| 195 | __field(int, written) |
| 196 | ), |
| 197 | |
| 198 | TP_fast_assign( |
| 199 | tp_memcpy(name, dev_name(bdi->dev), 32) |
| 200 | tp_assign(written, written) |
| 201 | ), |
| 202 | |
| 203 | TP_printk("bdi %s written %d", |
| 204 | __entry->name, |
| 205 | __entry->written |
| 206 | ) |
| 207 | ) |
| 208 | #endif |
| 209 | |
| 210 | DECLARE_EVENT_CLASS(writeback_wbc_class, |
| 211 | TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), |
| 212 | TP_ARGS(wbc, bdi), |
| 213 | TP_STRUCT__entry( |
| 214 | __array(char, name, 32) |
| 215 | __field(long, nr_to_write) |
| 216 | __field(long, pages_skipped) |
| 217 | __field(int, sync_mode) |
| 218 | __field(int, for_kupdate) |
| 219 | __field(int, for_background) |
| 220 | __field(int, for_reclaim) |
| 221 | __field(int, range_cyclic) |
| 222 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)) |
| 223 | __field(int, more_io) |
| 224 | __field(unsigned long, older_than_this) |
| 225 | #endif |
| 226 | __field(long, range_start) |
| 227 | __field(long, range_end) |
| 228 | ), |
| 229 | |
| 230 | TP_fast_assign( |
| 231 | tp_memcpy(name, dev_name(bdi->dev), 32) |
| 232 | tp_assign(nr_to_write, wbc->nr_to_write) |
| 233 | tp_assign(pages_skipped, wbc->pages_skipped) |
| 234 | tp_assign(sync_mode, wbc->sync_mode) |
| 235 | tp_assign(for_kupdate, wbc->for_kupdate) |
| 236 | tp_assign(for_background, wbc->for_background) |
| 237 | tp_assign(for_reclaim, wbc->for_reclaim) |
| 238 | tp_assign(range_cyclic, wbc->range_cyclic) |
| 239 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)) |
| 240 | tp_assign(more_io, wbc->more_io) |
| 241 | tp_assign(older_than_this, wbc->older_than_this ? |
| 242 | *wbc->older_than_this : 0) |
| 243 | #endif |
| 244 | tp_assign(range_start, (long)wbc->range_start) |
| 245 | tp_assign(range_end, (long)wbc->range_end) |
| 246 | ), |
| 247 | |
| 248 | TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d " |
| 249 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)) |
| 250 | "bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx " |
| 251 | #else |
| 252 | "bgrd=%d reclm=%d cyclic=%d " |
| 253 | #endif |
| 254 | "start=0x%lx end=0x%lx", |
| 255 | __entry->name, |
| 256 | __entry->nr_to_write, |
| 257 | __entry->pages_skipped, |
| 258 | __entry->sync_mode, |
| 259 | __entry->for_kupdate, |
| 260 | __entry->for_background, |
| 261 | __entry->for_reclaim, |
| 262 | __entry->range_cyclic, |
| 263 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)) |
| 264 | __entry->more_io, |
| 265 | __entry->older_than_this, |
| 266 | #endif |
| 267 | __entry->range_start, |
| 268 | __entry->range_end) |
| 269 | ) |
| 270 | |
| 271 | #undef DEFINE_WBC_EVENT |
| 272 | #define DEFINE_WBC_EVENT(name, map) \ |
| 273 | DEFINE_EVENT_MAP(writeback_wbc_class, name, map, \ |
| 274 | TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \ |
| 275 | TP_ARGS(wbc, bdi)) |
| 276 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)) |
| 277 | DEFINE_WBC_EVENT(wbc_writeback_start, writeback_wbc_writeback_start) |
| 278 | DEFINE_WBC_EVENT(wbc_writeback_written, writeback_wbc_writeback_written) |
| 279 | DEFINE_WBC_EVENT(wbc_writeback_wait, writeback_wbc_writeback_wait) |
| 280 | DEFINE_WBC_EVENT(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start) |
| 281 | DEFINE_WBC_EVENT(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written) |
| 282 | DEFINE_WBC_EVENT(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait) |
| 283 | #endif |
| 284 | DEFINE_WBC_EVENT(wbc_writepage, writeback_wbc_writepage) |
| 285 | |
| 286 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) |
| 287 | TRACE_EVENT(writeback_queue_io, |
| 288 | TP_PROTO(struct bdi_writeback *wb, |
| 289 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 290 | struct wb_writeback_work *work, |
| 291 | #else |
| 292 | unsigned long *older_than_this, |
| 293 | #endif |
| 294 | int moved), |
| 295 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 296 | TP_ARGS(wb, work, moved), |
| 297 | #else |
| 298 | TP_ARGS(wb, older_than_this, moved), |
| 299 | #endif |
| 300 | TP_STRUCT__entry( |
| 301 | __array(char, name, 32) |
| 302 | __field(unsigned long, older) |
| 303 | __field(long, age) |
| 304 | __field(int, moved) |
| 305 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 306 | __field(int, reason) |
| 307 | #endif |
| 308 | ), |
| 309 | TP_fast_assign( |
| 310 | tp_memcpy(name, dev_name(wb->bdi->dev), 32) |
| 311 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 312 | tp_assign(older, |
| 313 | work->older_than_this ? *(work->older_than_this) : 0) |
| 314 | tp_assign(age, work->older_than_this ? |
| 315 | (jiffies - *(work->older_than_this)) * 1000 / HZ : -1) |
| 316 | #else |
| 317 | tp_assign(older, older_than_this ? *older_than_this : 0) |
| 318 | tp_assign(age, older_than_this ? |
| 319 | (jiffies - *older_than_this) * 1000 / HZ : -1) |
| 320 | #endif |
| 321 | tp_assign(moved, moved) |
| 322 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 323 | tp_assign(reason, work->reason) |
| 324 | #endif |
| 325 | ), |
| 326 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 327 | TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s", |
| 328 | __entry->name, |
| 329 | __entry->older, /* older_than_this in jiffies */ |
| 330 | __entry->age, /* older_than_this in relative milliseconds */ |
| 331 | __entry->moved, |
| 332 | __print_symbolic(__entry->reason, WB_WORK_REASON) |
| 333 | ) |
| 334 | #else |
| 335 | TP_printk("bdi %s: older=%lu age=%ld enqueue=%d", |
| 336 | __entry->name, |
| 337 | __entry->older, /* older_than_this in jiffies */ |
| 338 | __entry->age, /* older_than_this in relative milliseconds */ |
| 339 | __entry->moved |
| 340 | ) |
| 341 | #endif |
| 342 | ) |
| 343 | |
| 344 | TRACE_EVENT_MAP(global_dirty_state, |
| 345 | |
| 346 | writeback_global_dirty_state, |
| 347 | |
| 348 | TP_PROTO(unsigned long background_thresh, |
| 349 | unsigned long dirty_thresh |
| 350 | ), |
| 351 | |
| 352 | TP_ARGS(background_thresh, |
| 353 | dirty_thresh |
| 354 | ), |
| 355 | |
| 356 | TP_STRUCT__entry( |
| 357 | __field(unsigned long, nr_dirty) |
| 358 | __field(unsigned long, nr_writeback) |
| 359 | __field(unsigned long, nr_unstable) |
| 360 | __field(unsigned long, background_thresh) |
| 361 | __field(unsigned long, dirty_thresh) |
| 362 | __field(unsigned long, dirty_limit) |
| 363 | __field(unsigned long, nr_dirtied) |
| 364 | __field(unsigned long, nr_written) |
| 365 | ), |
| 366 | |
| 367 | TP_fast_assign( |
| 368 | tp_assign(nr_dirty, global_page_state(NR_FILE_DIRTY)) |
| 369 | tp_assign(nr_writeback, global_page_state(NR_WRITEBACK)) |
| 370 | tp_assign(nr_unstable, global_page_state(NR_UNSTABLE_NFS)) |
| 371 | tp_assign(nr_dirtied, global_page_state(NR_DIRTIED)) |
| 372 | tp_assign(nr_written, global_page_state(NR_WRITTEN)) |
| 373 | tp_assign(background_thresh, background_thresh) |
| 374 | tp_assign(dirty_thresh, dirty_thresh) |
| 375 | tp_assign(dirty_limit, global_dirty_limit) |
| 376 | ), |
| 377 | |
| 378 | TP_printk("dirty=%lu writeback=%lu unstable=%lu " |
| 379 | "bg_thresh=%lu thresh=%lu limit=%lu " |
| 380 | "dirtied=%lu written=%lu", |
| 381 | __entry->nr_dirty, |
| 382 | __entry->nr_writeback, |
| 383 | __entry->nr_unstable, |
| 384 | __entry->background_thresh, |
| 385 | __entry->dirty_thresh, |
| 386 | __entry->dirty_limit, |
| 387 | __entry->nr_dirtied, |
| 388 | __entry->nr_written |
| 389 | ) |
| 390 | ) |
| 391 | #endif |
| 392 | |
| 393 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 394 | |
| 395 | #define KBps(x) ((x) << (PAGE_SHIFT - 10)) |
| 396 | |
| 397 | TRACE_EVENT_MAP(bdi_dirty_ratelimit, |
| 398 | |
| 399 | writeback_bdi_dirty_ratelimit, |
| 400 | |
| 401 | TP_PROTO(struct backing_dev_info *bdi, |
| 402 | unsigned long dirty_rate, |
| 403 | unsigned long task_ratelimit), |
| 404 | |
| 405 | TP_ARGS(bdi, dirty_rate, task_ratelimit), |
| 406 | |
| 407 | TP_STRUCT__entry( |
| 408 | __array(char, bdi, 32) |
| 409 | __field(unsigned long, write_bw) |
| 410 | __field(unsigned long, avg_write_bw) |
| 411 | __field(unsigned long, dirty_rate) |
| 412 | __field(unsigned long, dirty_ratelimit) |
| 413 | __field(unsigned long, task_ratelimit) |
| 414 | __field(unsigned long, balanced_dirty_ratelimit) |
| 415 | ), |
| 416 | |
| 417 | TP_fast_assign( |
| 418 | tp_memcpy(bdi, dev_name(bdi->dev), 32) |
| 419 | tp_assign(write_bw, KBps(bdi->write_bandwidth)) |
| 420 | tp_assign(avg_write_bw, KBps(bdi->avg_write_bandwidth)) |
| 421 | tp_assign(dirty_rate, KBps(dirty_rate)) |
| 422 | tp_assign(dirty_ratelimit, KBps(bdi->dirty_ratelimit)) |
| 423 | tp_assign(task_ratelimit, KBps(task_ratelimit)) |
| 424 | tp_assign(balanced_dirty_ratelimit, |
| 425 | KBps(bdi->balanced_dirty_ratelimit)) |
| 426 | ), |
| 427 | |
| 428 | TP_printk("bdi %s: " |
| 429 | "write_bw=%lu awrite_bw=%lu dirty_rate=%lu " |
| 430 | "dirty_ratelimit=%lu task_ratelimit=%lu " |
| 431 | "balanced_dirty_ratelimit=%lu", |
| 432 | __entry->bdi, |
| 433 | __entry->write_bw, /* write bandwidth */ |
| 434 | __entry->avg_write_bw, /* avg write bandwidth */ |
| 435 | __entry->dirty_rate, /* bdi dirty rate */ |
| 436 | __entry->dirty_ratelimit, /* base ratelimit */ |
| 437 | __entry->task_ratelimit, /* ratelimit with position control */ |
| 438 | __entry->balanced_dirty_ratelimit /* the balanced ratelimit */ |
| 439 | ) |
| 440 | ) |
| 441 | |
| 442 | TRACE_EVENT_MAP(balance_dirty_pages, |
| 443 | |
| 444 | writeback_balance_dirty_pages, |
| 445 | |
| 446 | TP_PROTO(struct backing_dev_info *bdi, |
| 447 | unsigned long thresh, |
| 448 | unsigned long bg_thresh, |
| 449 | unsigned long dirty, |
| 450 | unsigned long bdi_thresh, |
| 451 | unsigned long bdi_dirty, |
| 452 | unsigned long dirty_ratelimit, |
| 453 | unsigned long task_ratelimit, |
| 454 | unsigned long dirtied, |
| 455 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| 456 | unsigned long period, |
| 457 | #endif |
| 458 | long pause, |
| 459 | unsigned long start_time), |
| 460 | |
| 461 | TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty, |
| 462 | dirty_ratelimit, task_ratelimit, |
| 463 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| 464 | dirtied, period, pause, start_time), |
| 465 | #else |
| 466 | dirtied, pause, start_time), |
| 467 | #endif |
| 468 | TP_STRUCT__entry( |
| 469 | __array( char, bdi, 32) |
| 470 | __field(unsigned long, limit) |
| 471 | __field(unsigned long, setpoint) |
| 472 | __field(unsigned long, dirty) |
| 473 | __field(unsigned long, bdi_setpoint) |
| 474 | __field(unsigned long, bdi_dirty) |
| 475 | __field(unsigned long, dirty_ratelimit) |
| 476 | __field(unsigned long, task_ratelimit) |
| 477 | __field(unsigned int, dirtied) |
| 478 | __field(unsigned int, dirtied_pause) |
| 479 | __field(unsigned long, paused) |
| 480 | __field( long, pause) |
| 481 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| 482 | __field(unsigned long, period) |
| 483 | __field( long, think) |
| 484 | #endif |
| 485 | ), |
| 486 | |
| 487 | TP_fast_assign( |
| 488 | tp_memcpy(bdi, dev_name(bdi->dev), 32) |
| 489 | tp_assign(limit, global_dirty_limit) |
| 490 | tp_assign(setpoint, |
| 491 | (global_dirty_limit + (thresh + bg_thresh) / 2) / 2) |
| 492 | tp_assign(dirty, dirty) |
| 493 | tp_assign(bdi_setpoint, |
| 494 | ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) * |
| 495 | bdi_thresh / (thresh + 1)) |
| 496 | tp_assign(bdi_dirty, bdi_dirty) |
| 497 | tp_assign(dirty_ratelimit, KBps(dirty_ratelimit)) |
| 498 | tp_assign(task_ratelimit, KBps(task_ratelimit)) |
| 499 | tp_assign(dirtied, dirtied) |
| 500 | tp_assign(dirtied_pause, current->nr_dirtied_pause) |
| 501 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| 502 | tp_assign(think, current->dirty_paused_when == 0 ? 0 : |
| 503 | (long)(jiffies - current->dirty_paused_when) * 1000/HZ) |
| 504 | tp_assign(period, period * 1000 / HZ) |
| 505 | #endif |
| 506 | tp_assign(pause, pause * 1000 / HZ) |
| 507 | tp_assign(paused, (jiffies - start_time) * 1000 / HZ) |
| 508 | ), |
| 509 | |
| 510 | |
| 511 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| 512 | TP_printk("bdi %s: " |
| 513 | "limit=%lu setpoint=%lu dirty=%lu " |
| 514 | "bdi_setpoint=%lu bdi_dirty=%lu " |
| 515 | "dirty_ratelimit=%lu task_ratelimit=%lu " |
| 516 | "dirtied=%u dirtied_pause=%u " |
| 517 | "paused=%lu pause=%ld period=%lu think=%ld", |
| 518 | __entry->bdi, |
| 519 | __entry->limit, |
| 520 | __entry->setpoint, |
| 521 | __entry->dirty, |
| 522 | __entry->bdi_setpoint, |
| 523 | __entry->bdi_dirty, |
| 524 | __entry->dirty_ratelimit, |
| 525 | __entry->task_ratelimit, |
| 526 | __entry->dirtied, |
| 527 | __entry->dirtied_pause, |
| 528 | __entry->paused, /* ms */ |
| 529 | __entry->pause, /* ms */ |
| 530 | __entry->period, /* ms */ |
| 531 | __entry->think /* ms */ |
| 532 | ) |
| 533 | #else |
| 534 | TP_printk("bdi %s: " |
| 535 | "limit=%lu setpoint=%lu dirty=%lu " |
| 536 | "bdi_setpoint=%lu bdi_dirty=%lu " |
| 537 | "dirty_ratelimit=%lu task_ratelimit=%lu " |
| 538 | "dirtied=%u dirtied_pause=%u " |
| 539 | "paused=%lu pause=%ld", |
| 540 | __entry->bdi, |
| 541 | __entry->limit, |
| 542 | __entry->setpoint, |
| 543 | __entry->dirty, |
| 544 | __entry->bdi_setpoint, |
| 545 | __entry->bdi_dirty, |
| 546 | __entry->dirty_ratelimit, |
| 547 | __entry->task_ratelimit, |
| 548 | __entry->dirtied, |
| 549 | __entry->dirtied_pause, |
| 550 | __entry->paused, /* ms */ |
| 551 | __entry->pause /* ms */ |
| 552 | ) |
| 553 | #endif |
| 554 | ) |
| 555 | #endif |
| 556 | |
| 557 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0)) |
| 558 | TRACE_EVENT(writeback_sb_inodes_requeue, |
| 559 | |
| 560 | TP_PROTO(struct inode *inode), |
| 561 | TP_ARGS(inode), |
| 562 | |
| 563 | TP_STRUCT__entry( |
| 564 | __array(char, name, 32) |
| 565 | __field(unsigned long, ino) |
| 566 | __field(unsigned long, state) |
| 567 | __field(unsigned long, dirtied_when) |
| 568 | ), |
| 569 | |
| 570 | TP_fast_assign( |
| 571 | tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32) |
| 572 | tp_assign(ino, inode->i_ino) |
| 573 | tp_assign(state, inode->i_state) |
| 574 | tp_assign(dirtied_when, inode->dirtied_when) |
| 575 | ), |
| 576 | |
| 577 | TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu", |
| 578 | __entry->name, |
| 579 | __entry->ino, |
| 580 | show_inode_state(__entry->state), |
| 581 | __entry->dirtied_when, |
| 582 | (jiffies - __entry->dirtied_when) / HZ |
| 583 | ) |
| 584 | ) |
| 585 | #endif |
| 586 | |
| 587 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) |
| 588 | DECLARE_EVENT_CLASS(writeback_congest_waited_template, |
| 589 | |
| 590 | TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), |
| 591 | |
| 592 | TP_ARGS(usec_timeout, usec_delayed), |
| 593 | |
| 594 | TP_STRUCT__entry( |
| 595 | __field( unsigned int, usec_timeout ) |
| 596 | __field( unsigned int, usec_delayed ) |
| 597 | ), |
| 598 | |
| 599 | TP_fast_assign( |
| 600 | tp_assign(usec_timeout, usec_timeout) |
| 601 | tp_assign(usec_delayed, usec_delayed) |
| 602 | ), |
| 603 | |
| 604 | TP_printk("usec_timeout=%u usec_delayed=%u", |
| 605 | __entry->usec_timeout, |
| 606 | __entry->usec_delayed) |
| 607 | ) |
| 608 | |
| 609 | DEFINE_EVENT(writeback_congest_waited_template, writeback_congestion_wait, |
| 610 | |
| 611 | TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), |
| 612 | |
| 613 | TP_ARGS(usec_timeout, usec_delayed) |
| 614 | ) |
| 615 | |
| 616 | DEFINE_EVENT(writeback_congest_waited_template, writeback_wait_iff_congested, |
| 617 | |
| 618 | TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), |
| 619 | |
| 620 | TP_ARGS(usec_timeout, usec_delayed) |
| 621 | ) |
| 622 | #endif |
| 623 | |
| 624 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) |
| 625 | DECLARE_EVENT_CLASS(writeback_single_inode_template, |
| 626 | |
| 627 | TP_PROTO(struct inode *inode, |
| 628 | struct writeback_control *wbc, |
| 629 | unsigned long nr_to_write |
| 630 | ), |
| 631 | |
| 632 | TP_ARGS(inode, wbc, nr_to_write), |
| 633 | |
| 634 | TP_STRUCT__entry( |
| 635 | __array(char, name, 32) |
| 636 | __field(unsigned long, ino) |
| 637 | __field(unsigned long, state) |
| 638 | __field(unsigned long, dirtied_when) |
| 639 | __field(unsigned long, writeback_index) |
| 640 | __field(long, nr_to_write) |
| 641 | __field(unsigned long, wrote) |
| 642 | ), |
| 643 | |
| 644 | TP_fast_assign( |
| 645 | tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32) |
| 646 | tp_assign(ino, inode->i_ino) |
| 647 | tp_assign(state, inode->i_state) |
| 648 | tp_assign(dirtied_when, inode->dirtied_when) |
| 649 | tp_assign(writeback_index, inode->i_mapping->writeback_index) |
| 650 | tp_assign(nr_to_write, nr_to_write) |
| 651 | tp_assign(wrote, nr_to_write - wbc->nr_to_write) |
| 652 | ), |
| 653 | |
| 654 | TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu " |
| 655 | "index=%lu to_write=%ld wrote=%lu", |
| 656 | __entry->name, |
| 657 | __entry->ino, |
| 658 | show_inode_state(__entry->state), |
| 659 | __entry->dirtied_when, |
| 660 | (jiffies - __entry->dirtied_when) / HZ, |
| 661 | __entry->writeback_index, |
| 662 | __entry->nr_to_write, |
| 663 | __entry->wrote |
| 664 | ) |
| 665 | ) |
| 666 | |
| 667 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0)) |
| 668 | DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_requeue, |
| 669 | TP_PROTO(struct inode *inode, |
| 670 | struct writeback_control *wbc, |
| 671 | unsigned long nr_to_write), |
| 672 | TP_ARGS(inode, wbc, nr_to_write) |
| 673 | ) |
| 674 | #endif |
| 675 | |
| 676 | DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode, |
| 677 | TP_PROTO(struct inode *inode, |
| 678 | struct writeback_control *wbc, |
| 679 | unsigned long nr_to_write), |
| 680 | TP_ARGS(inode, wbc, nr_to_write) |
| 681 | ) |
| 682 | #endif |
| 683 | |
| 684 | #endif /* _TRACE_WRITEBACK_H */ |
| 685 | |
| 686 | /* This part must be outside protection */ |
| 687 | #include "../../../probes/define_trace.h" |