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