| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | #undef TRACE_SYSTEM |
| 3 | #define TRACE_SYSTEM writeback |
| 4 | |
| 5 | #if !defined(LTTNG_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ) |
| 6 | #define LTTNG_TRACE_WRITEBACK_H |
| 7 | |
| 8 | #include <probes/lttng-tracepoint-event.h> |
| 9 | #include <linux/tracepoint.h> |
| 10 | #include <linux/backing-dev.h> |
| 11 | #include <linux/writeback.h> |
| 12 | |
| 13 | #ifndef _TRACE_WRITEBACK_DEF_ |
| 14 | #define _TRACE_WRITEBACK_DEF_ |
| 15 | |
| 16 | static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode) |
| 17 | { |
| 18 | return inode_to_bdi(inode); |
| 19 | } |
| 20 | |
| 21 | #endif |
| 22 | |
| 23 | #define show_inode_state(state) \ |
| 24 | __print_flags(state, "|", \ |
| 25 | {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \ |
| 26 | {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \ |
| 27 | {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \ |
| 28 | {I_NEW, "I_NEW"}, \ |
| 29 | {I_WILL_FREE, "I_WILL_FREE"}, \ |
| 30 | {I_FREEING, "I_FREEING"}, \ |
| 31 | {I_CLEAR, "I_CLEAR"}, \ |
| 32 | {I_SYNC, "I_SYNC"}, \ |
| 33 | {I_DIRTY_TIME, "I_DIRTY_TIME"}, \ |
| 34 | {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \ |
| 35 | {I_REFERENCED, "I_REFERENCED"} \ |
| 36 | ) |
| 37 | |
| 38 | LTTNG_TRACEPOINT_EVENT(writeback_dirty_page, |
| 39 | TP_PROTO(struct page *page, struct address_space *mapping), |
| 40 | TP_ARGS(page, mapping), |
| 41 | TP_FIELDS( |
| 42 | ctf_array_text(char, name, |
| 43 | mapping ? dev_name(lttng_inode_to_bdi(mapping->host)->dev) : "(unknown)", 32) |
| 44 | ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0) |
| 45 | ctf_integer(pgoff_t, index, page->index) |
| 46 | ) |
| 47 | ) |
| 48 | |
| 49 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template, |
| 50 | TP_PROTO(struct inode *inode, int flags), |
| 51 | TP_ARGS(inode, flags), |
| 52 | TP_FIELDS( |
| 53 | /* may be called for files on pseudo FSes w/ unregistered bdi */ |
| 54 | ctf_array_text(char, name, |
| 55 | lttng_inode_to_bdi(inode)->dev ? |
| 56 | dev_name(lttng_inode_to_bdi(inode)->dev) : "(unknown)", 32) |
| 57 | ctf_integer(unsigned long, ino, inode->i_ino) |
| 58 | ctf_integer(unsigned long, state, inode->i_state) |
| 59 | ctf_integer(unsigned long, flags, flags) |
| 60 | ) |
| 61 | ) |
| 62 | #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \ |
| 63 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \ |
| 64 | TP_PROTO(struct inode *inode, int flags), \ |
| 65 | TP_ARGS(inode, flags)) |
| 66 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start) |
| 67 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode) |
| 68 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty) |
| 69 | |
| 70 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template, |
| 71 | TP_PROTO(struct inode *inode, struct writeback_control *wbc), |
| 72 | TP_ARGS(inode, wbc), |
| 73 | TP_FIELDS( |
| 74 | ctf_array_text(char, name, |
| 75 | dev_name(lttng_inode_to_bdi(inode)->dev), 32) |
| 76 | ctf_integer(unsigned long, ino, inode->i_ino) |
| 77 | ctf_integer(int, sync_mode, wbc->sync_mode) |
| 78 | ) |
| 79 | ) |
| 80 | |
| 81 | #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \ |
| 82 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \ |
| 83 | TP_PROTO(struct inode *inode, struct writeback_control *wbc), \ |
| 84 | TP_ARGS(inode, wbc)) |
| 85 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start) |
| 86 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode) |
| 87 | |
| 88 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class, |
| 89 | TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), |
| 90 | TP_ARGS(wb, work), |
| 91 | TP_FIELDS( |
| 92 | ctf_array_text(char, name, wb->bdi->dev ? dev_name(wb->bdi->dev) : |
| 93 | "(unknown)", 32) |
| 94 | ) |
| 95 | ) |
| 96 | |
| 97 | #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \ |
| 98 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \ |
| 99 | TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \ |
| 100 | TP_ARGS(wb, work)) |
| 101 | |
| 102 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread) |
| 103 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue) |
| 104 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec) |
| 105 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start) |
| 106 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written) |
| 107 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait) |
| 108 | |
| 109 | LTTNG_TRACEPOINT_EVENT(writeback_pages_written, |
| 110 | TP_PROTO(long pages_written), |
| 111 | TP_ARGS(pages_written), |
| 112 | TP_FIELDS( |
| 113 | ctf_integer(long, pages, pages_written) |
| 114 | ) |
| 115 | ) |
| 116 | |
| 117 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class, |
| 118 | TP_PROTO(struct bdi_writeback *wb), |
| 119 | TP_ARGS(wb), |
| 120 | TP_FIELDS( |
| 121 | ctf_array_text(char, name, |
| 122 | dev_name(wb->bdi->dev), 32) |
| 123 | ) |
| 124 | ) |
| 125 | |
| 126 | #undef DEFINE_WRITEBACK_EVENT |
| 127 | #define DEFINE_WRITEBACK_EVENT(name) \ |
| 128 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \ |
| 129 | TP_PROTO(struct bdi_writeback *wb), \ |
| 130 | TP_ARGS(wb)) |
| 131 | |
| 132 | #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \ |
| 133 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \ |
| 134 | TP_PROTO(struct bdi_writeback *wb), \ |
| 135 | TP_ARGS(wb)) |
| 136 | |
| 137 | LTTNG_TRACEPOINT_EVENT(writeback_bdi_register, |
| 138 | TP_PROTO(struct backing_dev_info *bdi), |
| 139 | TP_ARGS(bdi), |
| 140 | TP_FIELDS( |
| 141 | ctf_array_text(char, name, |
| 142 | dev_name(bdi->dev), 32) |
| 143 | ) |
| 144 | ) |
| 145 | |
| 146 | DEFINE_WRITEBACK_EVENT(writeback_nowork) |
| 147 | DEFINE_WRITEBACK_EVENT(writeback_wake_background) |
| 148 | DEFINE_WRITEBACK_EVENT(writeback_wake_thread) |
| 149 | DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread) |
| 150 | DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister) |
| 151 | DEFINE_WRITEBACK_EVENT(writeback_thread_start) |
| 152 | DEFINE_WRITEBACK_EVENT(writeback_thread_stop) |
| 153 | |
| 154 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class, |
| 155 | TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), |
| 156 | TP_ARGS(wbc, bdi), |
| 157 | TP_FIELDS( |
| 158 | ctf_array_text(char, name, dev_name(bdi->dev), 32) |
| 159 | ctf_integer(long, nr_to_write, wbc->nr_to_write) |
| 160 | ctf_integer(long, pages_skipped, wbc->pages_skipped) |
| 161 | ctf_integer(int, sync_mode, wbc->sync_mode) |
| 162 | ctf_integer(int, for_kupdate, wbc->for_kupdate) |
| 163 | ctf_integer(int, for_background, wbc->for_background) |
| 164 | ctf_integer(int, for_reclaim, wbc->for_reclaim) |
| 165 | ctf_integer(int, range_cyclic, wbc->range_cyclic) |
| 166 | ctf_integer(long, range_start, (long) wbc->range_start) |
| 167 | ctf_integer(long, range_end, (long) wbc->range_end) |
| 168 | ) |
| 169 | ) |
| 170 | |
| 171 | #undef DEFINE_WBC_EVENT |
| 172 | #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \ |
| 173 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \ |
| 174 | TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \ |
| 175 | TP_ARGS(wbc, bdi)) |
| 176 | LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage) |
| 177 | |
| 178 | LTTNG_TRACEPOINT_EVENT(writeback_queue_io, |
| 179 | TP_PROTO(struct bdi_writeback *wb, |
| 180 | struct wb_writeback_work *work, |
| 181 | int moved), |
| 182 | TP_ARGS(wb, work, moved), |
| 183 | TP_FIELDS( |
| 184 | ctf_array_text(char, name, dev_name(wb->bdi->dev), 32) |
| 185 | ctf_integer(int, moved, moved) |
| 186 | ) |
| 187 | ) |
| 188 | |
| 189 | LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state, |
| 190 | |
| 191 | writeback_global_dirty_state, |
| 192 | |
| 193 | TP_PROTO(struct wb_domain *domain, |
| 194 | unsigned long background_thresh, |
| 195 | unsigned long dirty_thresh |
| 196 | ), |
| 197 | |
| 198 | TP_ARGS(domain, |
| 199 | background_thresh, |
| 200 | dirty_thresh |
| 201 | ), |
| 202 | |
| 203 | TP_FIELDS( |
| 204 | ctf_integer(unsigned long, nr_dirty, global_node_page_state(NR_FILE_DIRTY)) |
| 205 | ctf_integer(unsigned long, nr_writeback, global_node_page_state(NR_WRITEBACK)) |
| 206 | ctf_integer(unsigned long, nr_unstable, global_node_page_state(NR_UNSTABLE_NFS)) |
| 207 | ctf_integer(unsigned long, nr_dirtied, global_node_page_state(NR_DIRTIED)) |
| 208 | ctf_integer(unsigned long, nr_written, global_node_page_state(NR_WRITTEN)) |
| 209 | ctf_integer(unsigned long, background_thresh, background_thresh) |
| 210 | ctf_integer(unsigned long, dirty_thresh, dirty_thresh) |
| 211 | ctf_integer(unsigned long, dirty_limit, domain->dirty_limit) |
| 212 | ) |
| 213 | ) |
| 214 | |
| 215 | #define KBps(x) ((x) << (PAGE_SHIFT - 10)) |
| 216 | |
| 217 | LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit, |
| 218 | |
| 219 | writeback_bdi_dirty_ratelimit, |
| 220 | |
| 221 | TP_PROTO(struct bdi_writeback *wb, |
| 222 | unsigned long dirty_rate, |
| 223 | unsigned long task_ratelimit), |
| 224 | |
| 225 | TP_ARGS(wb, dirty_rate, task_ratelimit), |
| 226 | |
| 227 | TP_FIELDS( |
| 228 | ctf_array_text(char, bdi, dev_name(wb->bdi->dev), 32) |
| 229 | ctf_integer(unsigned long, write_bw, KBps(wb->bdi->wb.write_bandwidth)) |
| 230 | ctf_integer(unsigned long, avg_write_bw, KBps(wb->bdi->wb.avg_write_bandwidth)) |
| 231 | ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate)) |
| 232 | ctf_integer(unsigned long, dirty_ratelimit, KBps(wb->bdi->wb.dirty_ratelimit)) |
| 233 | ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit)) |
| 234 | ctf_integer(unsigned long, balanced_dirty_ratelimit, |
| 235 | KBps(wb->bdi->wb.balanced_dirty_ratelimit)) |
| 236 | ) |
| 237 | ) |
| 238 | |
| 239 | LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages, |
| 240 | |
| 241 | writeback_balance_dirty_pages, |
| 242 | |
| 243 | TP_PROTO(struct wb_domain *domain, |
| 244 | struct bdi_writeback *wb, |
| 245 | struct dirty_throttle_control *sdtc, |
| 246 | unsigned long dirty_ratelimit, |
| 247 | unsigned long task_ratelimit, |
| 248 | unsigned long dirtied, |
| 249 | unsigned long period, |
| 250 | long pause, |
| 251 | unsigned long start_time), |
| 252 | |
| 253 | TP_ARGS(domain, wb, sdtc, |
| 254 | dirty_ratelimit, task_ratelimit, |
| 255 | dirtied, period, pause, start_time |
| 256 | ), |
| 257 | |
| 258 | TP_FIELDS( |
| 259 | ctf_array_text(char, bdi, dev_name(wb->bdi->dev), 32) |
| 260 | ctf_integer(unsigned long, limit, domain->dirty_limit) |
| 261 | ctf_integer(unsigned long, setpoint, |
| 262 | (domain->dirty_limit + (sdtc->thresh + sdtc->bg_thresh) / 2) / 2) |
| 263 | ctf_integer(unsigned long, dirty, sdtc->dirty) |
| 264 | ctf_integer(unsigned long, bdi_setpoint, |
| 265 | ((domain->dirty_limit + (sdtc->thresh + sdtc->bg_thresh) / 2) / 2) * |
| 266 | sdtc->wb_thresh / (sdtc->thresh + 1)) |
| 267 | ctf_integer(unsigned long, bdi_dirty, sdtc->wb_dirty) |
| 268 | ctf_integer(unsigned long, dirty_ratelimit, |
| 269 | KBps(dirty_ratelimit)) |
| 270 | ctf_integer(unsigned long, task_ratelimit, |
| 271 | KBps(task_ratelimit)) |
| 272 | ctf_integer(unsigned int, dirtied, dirtied) |
| 273 | ctf_integer(unsigned int, dirtied_pause, |
| 274 | current->nr_dirtied_pause) |
| 275 | ctf_integer(unsigned long, paused, |
| 276 | (jiffies - start_time) * 1000 / HZ) |
| 277 | ctf_integer(long, pause, pause * 1000 / HZ) |
| 278 | ctf_integer(unsigned long, period, |
| 279 | period * 1000 / HZ) |
| 280 | ctf_integer(long, think, |
| 281 | current->dirty_paused_when == 0 ? 0 : |
| 282 | (long)(jiffies - current->dirty_paused_when) * 1000/HZ) |
| 283 | ) |
| 284 | ) |
| 285 | |
| 286 | LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue, |
| 287 | |
| 288 | TP_PROTO(struct inode *inode), |
| 289 | TP_ARGS(inode), |
| 290 | |
| 291 | TP_FIELDS( |
| 292 | ctf_array_text(char, name, |
| 293 | dev_name(lttng_inode_to_bdi(inode)->dev), 32) |
| 294 | ctf_integer(unsigned long, ino, inode->i_ino) |
| 295 | ctf_integer(unsigned long, state, inode->i_state) |
| 296 | ctf_integer(unsigned long, dirtied_when, inode->dirtied_when) |
| 297 | ) |
| 298 | ) |
| 299 | |
| 300 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template, |
| 301 | |
| 302 | TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), |
| 303 | |
| 304 | TP_ARGS(usec_timeout, usec_delayed), |
| 305 | |
| 306 | TP_FIELDS( |
| 307 | ctf_integer(unsigned int, usec_timeout, usec_timeout) |
| 308 | ctf_integer(unsigned int, usec_delayed, usec_delayed) |
| 309 | ) |
| 310 | ) |
| 311 | |
| 312 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_congestion_wait, |
| 313 | |
| 314 | TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), |
| 315 | |
| 316 | TP_ARGS(usec_timeout, usec_delayed) |
| 317 | ) |
| 318 | |
| 319 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_wait_iff_congested, |
| 320 | |
| 321 | TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), |
| 322 | |
| 323 | TP_ARGS(usec_timeout, usec_delayed) |
| 324 | ) |
| 325 | |
| 326 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template, |
| 327 | |
| 328 | TP_PROTO(struct inode *inode, |
| 329 | struct writeback_control *wbc, |
| 330 | unsigned long nr_to_write |
| 331 | ), |
| 332 | |
| 333 | TP_ARGS(inode, wbc, nr_to_write), |
| 334 | |
| 335 | TP_FIELDS( |
| 336 | ctf_array_text(char, name, |
| 337 | dev_name(lttng_inode_to_bdi(inode)->dev), 32) |
| 338 | ctf_integer(unsigned long, ino, inode->i_ino) |
| 339 | ctf_integer(unsigned long, state, inode->i_state) |
| 340 | ctf_integer(unsigned long, dirtied_when, inode->dirtied_when) |
| 341 | ctf_integer(unsigned long, writeback_index, |
| 342 | inode->i_mapping->writeback_index) |
| 343 | ctf_integer(long, nr_to_write, nr_to_write) |
| 344 | ctf_integer(unsigned long, wrote, |
| 345 | nr_to_write - wbc->nr_to_write) |
| 346 | ) |
| 347 | ) |
| 348 | |
| 349 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode, |
| 350 | TP_PROTO(struct inode *inode, |
| 351 | struct writeback_control *wbc, |
| 352 | unsigned long nr_to_write), |
| 353 | TP_ARGS(inode, wbc, nr_to_write) |
| 354 | ) |
| 355 | |
| 356 | #endif /* LTTNG_TRACE_WRITEBACK_H */ |
| 357 | |
| 358 | /* This part must be outside protection */ |
| 359 | #include <probes/define_trace.h> |