| 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 | |
| 16 | /* |
| 17 | * Vanilla kernels before 4.0 do not implement inode_to_bdi |
| 18 | * RHEL kernels before 3.10.0-327.10.1 do not implement inode_to_bdi |
| 19 | * RHEL kernel 3.10.0-327.10.1 has inode_to_bdi |
| 20 | * RHEL kernel 3.10.0-327.13.1 includes a partial merge of upstream |
| 21 | * commit a212b105b07d75b48b1a166378282e8a77fbf53d which inlines |
| 22 | * inode_to_bdi but not sb_is_blkdev_sb making it unusable by modules. |
| 23 | */ |
| 24 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0)) |
| 25 | static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode) |
| 26 | { |
| 27 | struct super_block *sb; |
| 28 | |
| 29 | if (!inode) |
| 30 | return &noop_backing_dev_info; |
| 31 | |
| 32 | sb = inode->i_sb; |
| 33 | |
| 34 | if (strcmp(sb->s_type->name, "bdev") == 0) |
| 35 | return inode->i_mapping->backing_dev_info; |
| 36 | |
| 37 | return sb->s_bdi; |
| 38 | } |
| 39 | #else |
| 40 | static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode) |
| 41 | { |
| 42 | return inode_to_bdi(inode); |
| 43 | } |
| 44 | #endif /* #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0)) */ |
| 45 | |
| 46 | #endif |
| 47 | |
| 48 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) |
| 49 | #define show_inode_state(state) \ |
| 50 | __print_flags(state, "|", \ |
| 51 | {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \ |
| 52 | {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \ |
| 53 | {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \ |
| 54 | {I_NEW, "I_NEW"}, \ |
| 55 | {I_WILL_FREE, "I_WILL_FREE"}, \ |
| 56 | {I_FREEING, "I_FREEING"}, \ |
| 57 | {I_CLEAR, "I_CLEAR"}, \ |
| 58 | {I_SYNC, "I_SYNC"}, \ |
| 59 | {I_DIRTY_TIME, "I_DIRTY_TIME"}, \ |
| 60 | {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \ |
| 61 | {I_REFERENCED, "I_REFERENCED"} \ |
| 62 | ) |
| 63 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */ |
| 64 | #define show_inode_state(state) \ |
| 65 | __print_flags(state, "|", \ |
| 66 | {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \ |
| 67 | {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \ |
| 68 | {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \ |
| 69 | {I_NEW, "I_NEW"}, \ |
| 70 | {I_WILL_FREE, "I_WILL_FREE"}, \ |
| 71 | {I_FREEING, "I_FREEING"}, \ |
| 72 | {I_CLEAR, "I_CLEAR"}, \ |
| 73 | {I_SYNC, "I_SYNC"}, \ |
| 74 | {I_REFERENCED, "I_REFERENCED"} \ |
| 75 | ) |
| 76 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */ |
| 77 | |
| 78 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) |
| 79 | |
| 80 | LTTNG_TRACEPOINT_EVENT(writeback_dirty_page, |
| 81 | TP_PROTO(struct page *page, struct address_space *mapping), |
| 82 | TP_ARGS(page, mapping), |
| 83 | TP_FIELDS( |
| 84 | ctf_array_text(char, name, |
| 85 | mapping ? dev_name(lttng_inode_to_bdi(mapping->host)->dev) : "(unknown)", 32) |
| 86 | ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0) |
| 87 | ctf_integer(pgoff_t, index, page->index) |
| 88 | ) |
| 89 | ) |
| 90 | |
| 91 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template, |
| 92 | TP_PROTO(struct inode *inode, int flags), |
| 93 | TP_ARGS(inode, flags), |
| 94 | TP_FIELDS( |
| 95 | /* may be called for files on pseudo FSes w/ unregistered bdi */ |
| 96 | ctf_array_text(char, name, |
| 97 | lttng_inode_to_bdi(inode)->dev ? |
| 98 | dev_name(lttng_inode_to_bdi(inode)->dev) : "(unknown)", 32) |
| 99 | ctf_integer(unsigned long, ino, inode->i_ino) |
| 100 | ctf_integer(unsigned long, state, inode->i_state) |
| 101 | ctf_integer(unsigned long, flags, flags) |
| 102 | ) |
| 103 | ) |
| 104 | #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \ |
| 105 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \ |
| 106 | TP_PROTO(struct inode *inode, int flags), \ |
| 107 | TP_ARGS(inode, flags)) |
| 108 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start) |
| 109 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode) |
| 110 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty) |
| 111 | |
| 112 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template, |
| 113 | TP_PROTO(struct inode *inode, struct writeback_control *wbc), |
| 114 | TP_ARGS(inode, wbc), |
| 115 | TP_FIELDS( |
| 116 | ctf_array_text(char, name, |
| 117 | dev_name(lttng_inode_to_bdi(inode)->dev), 32) |
| 118 | ctf_integer(unsigned long, ino, inode->i_ino) |
| 119 | ctf_integer(int, sync_mode, wbc->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 | |
| 130 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) |
| 131 | |
| 132 | LTTNG_TRACEPOINT_EVENT(writeback_dirty_page, |
| 133 | TP_PROTO(struct page *page, struct address_space *mapping), |
| 134 | TP_ARGS(page, mapping), |
| 135 | TP_FIELDS( |
| 136 | ctf_array_text(char, name, |
| 137 | mapping ? dev_name(mapping->backing_dev_info->dev) : "(unknown)", 32) |
| 138 | ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0) |
| 139 | ctf_integer(pgoff_t, index, page->index) |
| 140 | ) |
| 141 | ) |
| 142 | |
| 143 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template, |
| 144 | TP_PROTO(struct inode *inode, int flags), |
| 145 | TP_ARGS(inode, flags), |
| 146 | TP_FIELDS( |
| 147 | /* may be called for files on pseudo FSes w/ unregistered bdi */ |
| 148 | ctf_array_text(char, name, |
| 149 | inode->i_mapping->backing_dev_info->dev ? |
| 150 | dev_name(inode->i_mapping->backing_dev_info->dev) |
| 151 | : "(unknown)", 32) |
| 152 | ctf_integer(unsigned long, ino, inode->i_ino) |
| 153 | ctf_integer(unsigned long, flags, flags) |
| 154 | ) |
| 155 | ) |
| 156 | #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \ |
| 157 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \ |
| 158 | TP_PROTO(struct inode *inode, int flags), \ |
| 159 | TP_ARGS(inode, flags)) |
| 160 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start) |
| 161 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode) |
| 162 | |
| 163 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template, |
| 164 | TP_PROTO(struct inode *inode, struct writeback_control *wbc), |
| 165 | TP_ARGS(inode, wbc), |
| 166 | TP_FIELDS( |
| 167 | ctf_array_text(char, name, |
| 168 | dev_name(inode->i_mapping->backing_dev_info->dev), 32) |
| 169 | ctf_integer(unsigned long, ino, inode->i_ino) |
| 170 | ctf_integer(int, sync_mode, wbc->sync_mode) |
| 171 | ) |
| 172 | ) |
| 173 | |
| 174 | #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \ |
| 175 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \ |
| 176 | TP_PROTO(struct inode *inode, struct writeback_control *wbc), \ |
| 177 | TP_ARGS(inode, wbc)) |
| 178 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start) |
| 179 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode) |
| 180 | |
| 181 | #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */ |
| 182 | |
| 183 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) |
| 184 | |
| 185 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class, |
| 186 | TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), |
| 187 | TP_ARGS(wb, work), |
| 188 | TP_FIELDS( |
| 189 | ctf_array_text(char, name, wb->bdi->dev ? dev_name(wb->bdi->dev) : |
| 190 | "(unknown)", 32) |
| 191 | ) |
| 192 | ) |
| 193 | |
| 194 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) |
| 195 | |
| 196 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class, |
| 197 | TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), |
| 198 | TP_ARGS(bdi, work), |
| 199 | TP_FIELDS( |
| 200 | ctf_array_text(char, name, bdi->dev ? dev_name(bdi->dev) : |
| 201 | "(unknown)", 32) |
| 202 | ) |
| 203 | ) |
| 204 | |
| 205 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */ |
| 206 | |
| 207 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class, |
| 208 | TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), |
| 209 | TP_ARGS(bdi, work), |
| 210 | TP_FIELDS( |
| 211 | ctf_array_text(char, name, |
| 212 | dev_name(bdi->dev ? bdi->dev : |
| 213 | default_backing_dev_info.dev), 32) |
| 214 | ) |
| 215 | ) |
| 216 | |
| 217 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */ |
| 218 | |
| 219 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) |
| 220 | |
| 221 | #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \ |
| 222 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \ |
| 223 | TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \ |
| 224 | TP_ARGS(wb, work)) |
| 225 | |
| 226 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */ |
| 227 | |
| 228 | #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \ |
| 229 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \ |
| 230 | TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \ |
| 231 | TP_ARGS(bdi, work)) |
| 232 | |
| 233 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */ |
| 234 | |
| 235 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread) |
| 236 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue) |
| 237 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec) |
| 238 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) |
| 239 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start) |
| 240 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written) |
| 241 | LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait) |
| 242 | #endif |
| 243 | |
| 244 | LTTNG_TRACEPOINT_EVENT(writeback_pages_written, |
| 245 | TP_PROTO(long pages_written), |
| 246 | TP_ARGS(pages_written), |
| 247 | TP_FIELDS( |
| 248 | ctf_integer(long, pages, pages_written) |
| 249 | ) |
| 250 | ) |
| 251 | |
| 252 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) |
| 253 | |
| 254 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class, |
| 255 | TP_PROTO(struct bdi_writeback *wb), |
| 256 | TP_ARGS(wb), |
| 257 | TP_FIELDS( |
| 258 | ctf_array_text(char, name, |
| 259 | dev_name(wb->bdi->dev), 32) |
| 260 | ) |
| 261 | ) |
| 262 | |
| 263 | #undef DEFINE_WRITEBACK_EVENT |
| 264 | #define DEFINE_WRITEBACK_EVENT(name) \ |
| 265 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \ |
| 266 | TP_PROTO(struct bdi_writeback *wb), \ |
| 267 | TP_ARGS(wb)) |
| 268 | |
| 269 | #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \ |
| 270 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \ |
| 271 | TP_PROTO(struct bdi_writeback *wb), \ |
| 272 | TP_ARGS(wb)) |
| 273 | |
| 274 | LTTNG_TRACEPOINT_EVENT(writeback_bdi_register, |
| 275 | TP_PROTO(struct backing_dev_info *bdi), |
| 276 | TP_ARGS(bdi), |
| 277 | TP_FIELDS( |
| 278 | ctf_array_text(char, name, |
| 279 | dev_name(bdi->dev), 32) |
| 280 | ) |
| 281 | ) |
| 282 | |
| 283 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */ |
| 284 | |
| 285 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class, |
| 286 | TP_PROTO(struct backing_dev_info *bdi), |
| 287 | TP_ARGS(bdi), |
| 288 | TP_FIELDS( |
| 289 | ctf_array_text(char, name, |
| 290 | dev_name(bdi->dev), 32) |
| 291 | ) |
| 292 | ) |
| 293 | |
| 294 | #undef DEFINE_WRITEBACK_EVENT |
| 295 | #define DEFINE_WRITEBACK_EVENT(name) \ |
| 296 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \ |
| 297 | TP_PROTO(struct backing_dev_info *bdi), \ |
| 298 | TP_ARGS(bdi)) |
| 299 | |
| 300 | #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \ |
| 301 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \ |
| 302 | TP_PROTO(struct backing_dev_info *bdi), \ |
| 303 | TP_ARGS(bdi)) |
| 304 | |
| 305 | DEFINE_WRITEBACK_EVENT(writeback_bdi_register) |
| 306 | |
| 307 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */ |
| 308 | |
| 309 | DEFINE_WRITEBACK_EVENT(writeback_nowork) |
| 310 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)) |
| 311 | DEFINE_WRITEBACK_EVENT(writeback_wake_background) |
| 312 | #endif |
| 313 | DEFINE_WRITEBACK_EVENT(writeback_wake_thread) |
| 314 | DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread) |
| 315 | DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister) |
| 316 | DEFINE_WRITEBACK_EVENT(writeback_thread_start) |
| 317 | DEFINE_WRITEBACK_EVENT(writeback_thread_stop) |
| 318 | #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0)) |
| 319 | DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start) |
| 320 | DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait) |
| 321 | |
| 322 | LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written, |
| 323 | |
| 324 | writeback_balance_dirty_written, |
| 325 | |
| 326 | TP_PROTO(struct backing_dev_info *bdi, int written), |
| 327 | |
| 328 | TP_ARGS(bdi, written), |
| 329 | |
| 330 | TP_FIELDS( |
| 331 | ctf_array_text(char, name, dev_name(bdi->dev), 32) |
| 332 | ctf_integer(int, written, written) |
| 333 | ) |
| 334 | ) |
| 335 | #endif |
| 336 | |
| 337 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class, |
| 338 | TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), |
| 339 | TP_ARGS(wbc, bdi), |
| 340 | TP_FIELDS( |
| 341 | ctf_array_text(char, name, dev_name(bdi->dev), 32) |
| 342 | ctf_integer(long, nr_to_write, wbc->nr_to_write) |
| 343 | ctf_integer(long, pages_skipped, wbc->pages_skipped) |
| 344 | ctf_integer(int, sync_mode, wbc->sync_mode) |
| 345 | ctf_integer(int, for_kupdate, wbc->for_kupdate) |
| 346 | ctf_integer(int, for_background, wbc->for_background) |
| 347 | ctf_integer(int, for_reclaim, wbc->for_reclaim) |
| 348 | ctf_integer(int, range_cyclic, wbc->range_cyclic) |
| 349 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)) |
| 350 | ctf_integer(int, more_io, wbc->more_io) |
| 351 | ctf_integer(unsigned long, older_than_this, |
| 352 | wbc->older_than_this ? *wbc->older_than_this : 0) |
| 353 | #endif |
| 354 | ctf_integer(long, range_start, (long) wbc->range_start) |
| 355 | ctf_integer(long, range_end, (long) wbc->range_end) |
| 356 | ) |
| 357 | ) |
| 358 | |
| 359 | #undef DEFINE_WBC_EVENT |
| 360 | #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \ |
| 361 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \ |
| 362 | TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \ |
| 363 | TP_ARGS(wbc, bdi)) |
| 364 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)) |
| 365 | LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start, writeback_wbc_writeback_start) |
| 366 | LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written, writeback_wbc_writeback_written) |
| 367 | LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait, writeback_wbc_writeback_wait) |
| 368 | LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start) |
| 369 | LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written) |
| 370 | LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait) |
| 371 | #endif |
| 372 | LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage) |
| 373 | |
| 374 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) |
| 375 | LTTNG_TRACEPOINT_EVENT(writeback_queue_io, |
| 376 | TP_PROTO(struct bdi_writeback *wb, |
| 377 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 378 | struct wb_writeback_work *work, |
| 379 | #else |
| 380 | unsigned long *older_than_this, |
| 381 | #endif |
| 382 | int moved), |
| 383 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 384 | TP_ARGS(wb, work, moved), |
| 385 | #else |
| 386 | TP_ARGS(wb, older_than_this, moved), |
| 387 | #endif |
| 388 | TP_FIELDS( |
| 389 | ctf_array_text(char, name, dev_name(wb->bdi->dev), 32) |
| 390 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 391 | #else |
| 392 | ctf_integer(unsigned long, older, |
| 393 | older_than_this ? *older_than_this : 0) |
| 394 | ctf_integer(long, age, |
| 395 | older_than_this ? |
| 396 | (jiffies - *older_than_this) * 1000 / HZ |
| 397 | : -1) |
| 398 | #endif |
| 399 | ctf_integer(int, moved, moved) |
| 400 | ) |
| 401 | ) |
| 402 | |
| 403 | LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state, |
| 404 | |
| 405 | writeback_global_dirty_state, |
| 406 | |
| 407 | TP_PROTO(unsigned long background_thresh, |
| 408 | unsigned long dirty_thresh |
| 409 | ), |
| 410 | |
| 411 | TP_ARGS(background_thresh, |
| 412 | dirty_thresh |
| 413 | ), |
| 414 | |
| 415 | TP_FIELDS( |
| 416 | ctf_integer(unsigned long, nr_dirty, global_page_state(NR_FILE_DIRTY)) |
| 417 | ctf_integer(unsigned long, nr_writeback, global_page_state(NR_WRITEBACK)) |
| 418 | ctf_integer(unsigned long, nr_unstable, global_page_state(NR_UNSTABLE_NFS)) |
| 419 | ctf_integer(unsigned long, nr_dirtied, global_page_state(NR_DIRTIED)) |
| 420 | ctf_integer(unsigned long, nr_written, global_page_state(NR_WRITTEN)) |
| 421 | ctf_integer(unsigned long, background_thresh, background_thresh) |
| 422 | ctf_integer(unsigned long, dirty_thresh, dirty_thresh) |
| 423 | ctf_integer(unsigned long, dirty_limit, global_dirty_limit) |
| 424 | ) |
| 425 | ) |
| 426 | #endif |
| 427 | |
| 428 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) |
| 429 | |
| 430 | #define KBps(x) ((x) << (PAGE_SHIFT - 10)) |
| 431 | |
| 432 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) |
| 433 | |
| 434 | LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit, |
| 435 | |
| 436 | writeback_bdi_dirty_ratelimit, |
| 437 | |
| 438 | TP_PROTO(struct bdi_writeback *wb, |
| 439 | unsigned long dirty_rate, |
| 440 | unsigned long task_ratelimit), |
| 441 | |
| 442 | TP_ARGS(wb, dirty_rate, task_ratelimit), |
| 443 | |
| 444 | TP_FIELDS( |
| 445 | ctf_array_text(char, bdi, dev_name(wb->bdi->dev), 32) |
| 446 | ctf_integer(unsigned long, write_bw, KBps(wb->bdi->wb.write_bandwidth)) |
| 447 | ctf_integer(unsigned long, avg_write_bw, KBps(wb->bdi->wb.avg_write_bandwidth)) |
| 448 | ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate)) |
| 449 | ctf_integer(unsigned long, dirty_ratelimit, KBps(wb->bdi->wb.dirty_ratelimit)) |
| 450 | ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit)) |
| 451 | ctf_integer(unsigned long, balanced_dirty_ratelimit, |
| 452 | KBps(wb->bdi->wb.balanced_dirty_ratelimit)) |
| 453 | ) |
| 454 | ) |
| 455 | |
| 456 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) |
| 457 | |
| 458 | LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit, |
| 459 | |
| 460 | writeback_bdi_dirty_ratelimit, |
| 461 | |
| 462 | TP_PROTO(struct backing_dev_info *bdi, |
| 463 | unsigned long dirty_rate, |
| 464 | unsigned long task_ratelimit), |
| 465 | |
| 466 | TP_ARGS(bdi, dirty_rate, task_ratelimit), |
| 467 | |
| 468 | TP_FIELDS( |
| 469 | ctf_array_text(char, bdi, dev_name(bdi->dev), 32) |
| 470 | ctf_integer(unsigned long, write_bw, KBps(bdi->wb.write_bandwidth)) |
| 471 | ctf_integer(unsigned long, avg_write_bw, KBps(bdi->wb.avg_write_bandwidth)) |
| 472 | ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate)) |
| 473 | ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->wb.dirty_ratelimit)) |
| 474 | ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit)) |
| 475 | ctf_integer(unsigned long, balanced_dirty_ratelimit, |
| 476 | KBps(bdi->wb.balanced_dirty_ratelimit)) |
| 477 | ) |
| 478 | ) |
| 479 | |
| 480 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */ |
| 481 | |
| 482 | LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit, |
| 483 | |
| 484 | writeback_bdi_dirty_ratelimit, |
| 485 | |
| 486 | TP_PROTO(struct backing_dev_info *bdi, |
| 487 | unsigned long dirty_rate, |
| 488 | unsigned long task_ratelimit), |
| 489 | |
| 490 | TP_ARGS(bdi, dirty_rate, task_ratelimit), |
| 491 | |
| 492 | TP_FIELDS( |
| 493 | ctf_array_text(char, bdi, dev_name(bdi->dev), 32) |
| 494 | ctf_integer(unsigned long, write_bw, KBps(bdi->write_bandwidth)) |
| 495 | ctf_integer(unsigned long, avg_write_bw, KBps(bdi->avg_write_bandwidth)) |
| 496 | ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate)) |
| 497 | ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->dirty_ratelimit)) |
| 498 | ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit)) |
| 499 | ctf_integer(unsigned long, balanced_dirty_ratelimit, |
| 500 | KBps(bdi->balanced_dirty_ratelimit)) |
| 501 | ) |
| 502 | ) |
| 503 | |
| 504 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */ |
| 505 | |
| 506 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) |
| 507 | |
| 508 | LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages, |
| 509 | |
| 510 | writeback_balance_dirty_pages, |
| 511 | |
| 512 | TP_PROTO(struct bdi_writeback *wb, |
| 513 | unsigned long thresh, |
| 514 | unsigned long bg_thresh, |
| 515 | unsigned long dirty, |
| 516 | unsigned long bdi_thresh, |
| 517 | unsigned long bdi_dirty, |
| 518 | unsigned long dirty_ratelimit, |
| 519 | unsigned long task_ratelimit, |
| 520 | unsigned long dirtied, |
| 521 | unsigned long period, |
| 522 | long pause, |
| 523 | unsigned long start_time), |
| 524 | |
| 525 | TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty, |
| 526 | dirty_ratelimit, task_ratelimit, |
| 527 | dirtied, period, pause, start_time |
| 528 | ), |
| 529 | |
| 530 | TP_FIELDS( |
| 531 | ctf_array_text(char, bdi, dev_name(wb->bdi->dev), 32) |
| 532 | ctf_integer(unsigned long, limit, global_dirty_limit) |
| 533 | ctf_integer(unsigned long, setpoint, |
| 534 | (global_dirty_limit + (thresh + bg_thresh) / 2) / 2) |
| 535 | ctf_integer(unsigned long, dirty, dirty) |
| 536 | ctf_integer(unsigned long, bdi_setpoint, |
| 537 | ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) * |
| 538 | bdi_thresh / (thresh + 1)) |
| 539 | ctf_integer(unsigned long, bdi_dirty, bdi_dirty) |
| 540 | ctf_integer(unsigned long, dirty_ratelimit, |
| 541 | KBps(dirty_ratelimit)) |
| 542 | ctf_integer(unsigned long, task_ratelimit, |
| 543 | KBps(task_ratelimit)) |
| 544 | ctf_integer(unsigned int, dirtied, dirtied) |
| 545 | ctf_integer(unsigned int, dirtied_pause, |
| 546 | current->nr_dirtied_pause) |
| 547 | ctf_integer(unsigned long, paused, |
| 548 | (jiffies - start_time) * 1000 / HZ) |
| 549 | ctf_integer(long, pause, pause * 1000 / HZ) |
| 550 | ctf_integer(unsigned long, period, |
| 551 | period * 1000 / HZ) |
| 552 | ctf_integer(long, think, |
| 553 | current->dirty_paused_when == 0 ? 0 : |
| 554 | (long)(jiffies - current->dirty_paused_when) * 1000/HZ) |
| 555 | ) |
| 556 | ) |
| 557 | |
| 558 | #else /* #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */ |
| 559 | |
| 560 | LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages, |
| 561 | |
| 562 | writeback_balance_dirty_pages, |
| 563 | |
| 564 | TP_PROTO(struct backing_dev_info *bdi, |
| 565 | unsigned long thresh, |
| 566 | unsigned long bg_thresh, |
| 567 | unsigned long dirty, |
| 568 | unsigned long bdi_thresh, |
| 569 | unsigned long bdi_dirty, |
| 570 | unsigned long dirty_ratelimit, |
| 571 | unsigned long task_ratelimit, |
| 572 | unsigned long dirtied, |
| 573 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| 574 | unsigned long period, |
| 575 | #endif |
| 576 | long pause, |
| 577 | unsigned long start_time), |
| 578 | |
| 579 | TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty, |
| 580 | dirty_ratelimit, task_ratelimit, |
| 581 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| 582 | dirtied, period, pause, start_time |
| 583 | #else |
| 584 | dirtied, pause, start_time |
| 585 | #endif |
| 586 | ), |
| 587 | |
| 588 | TP_FIELDS( |
| 589 | ctf_array_text(char, bdi, dev_name(bdi->dev), 32) |
| 590 | ctf_integer(unsigned long, limit, global_dirty_limit) |
| 591 | ctf_integer(unsigned long, setpoint, |
| 592 | (global_dirty_limit + (thresh + bg_thresh) / 2) / 2) |
| 593 | ctf_integer(unsigned long, dirty, dirty) |
| 594 | ctf_integer(unsigned long, bdi_setpoint, |
| 595 | ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) * |
| 596 | bdi_thresh / (thresh + 1)) |
| 597 | ctf_integer(unsigned long, bdi_dirty, bdi_dirty) |
| 598 | ctf_integer(unsigned long, dirty_ratelimit, |
| 599 | KBps(dirty_ratelimit)) |
| 600 | ctf_integer(unsigned long, task_ratelimit, |
| 601 | KBps(task_ratelimit)) |
| 602 | ctf_integer(unsigned int, dirtied, dirtied) |
| 603 | ctf_integer(unsigned int, dirtied_pause, |
| 604 | current->nr_dirtied_pause) |
| 605 | ctf_integer(unsigned long, paused, |
| 606 | (jiffies - start_time) * 1000 / HZ) |
| 607 | ctf_integer(long, pause, pause * 1000 / HZ) |
| 608 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| 609 | ctf_integer(unsigned long, period, |
| 610 | period * 1000 / HZ) |
| 611 | ctf_integer(long, think, |
| 612 | current->dirty_paused_when == 0 ? 0 : |
| 613 | (long)(jiffies - current->dirty_paused_when) * 1000/HZ) |
| 614 | #endif |
| 615 | ) |
| 616 | ) |
| 617 | #endif /* #else #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */ |
| 618 | |
| 619 | #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) */ |
| 620 | |
| 621 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0)) |
| 622 | LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue, |
| 623 | |
| 624 | TP_PROTO(struct inode *inode), |
| 625 | TP_ARGS(inode), |
| 626 | |
| 627 | TP_FIELDS( |
| 628 | ctf_array_text(char, name, |
| 629 | dev_name(lttng_inode_to_bdi(inode)->dev), 32) |
| 630 | ctf_integer(unsigned long, ino, inode->i_ino) |
| 631 | ctf_integer(unsigned long, state, inode->i_state) |
| 632 | ctf_integer(unsigned long, dirtied_when, inode->dirtied_when) |
| 633 | ) |
| 634 | ) |
| 635 | #endif |
| 636 | |
| 637 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) |
| 638 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template, |
| 639 | |
| 640 | TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), |
| 641 | |
| 642 | TP_ARGS(usec_timeout, usec_delayed), |
| 643 | |
| 644 | TP_FIELDS( |
| 645 | ctf_integer(unsigned int, usec_timeout, usec_timeout) |
| 646 | ctf_integer(unsigned int, usec_delayed, usec_delayed) |
| 647 | ) |
| 648 | ) |
| 649 | |
| 650 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_congestion_wait, |
| 651 | |
| 652 | TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), |
| 653 | |
| 654 | TP_ARGS(usec_timeout, usec_delayed) |
| 655 | ) |
| 656 | |
| 657 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_wait_iff_congested, |
| 658 | |
| 659 | TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), |
| 660 | |
| 661 | TP_ARGS(usec_timeout, usec_delayed) |
| 662 | ) |
| 663 | #endif |
| 664 | |
| 665 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) |
| 666 | LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template, |
| 667 | |
| 668 | TP_PROTO(struct inode *inode, |
| 669 | struct writeback_control *wbc, |
| 670 | unsigned long nr_to_write |
| 671 | ), |
| 672 | |
| 673 | TP_ARGS(inode, wbc, nr_to_write), |
| 674 | |
| 675 | TP_FIELDS( |
| 676 | ctf_array_text(char, name, |
| 677 | dev_name(lttng_inode_to_bdi(inode)->dev), 32) |
| 678 | ctf_integer(unsigned long, ino, inode->i_ino) |
| 679 | ctf_integer(unsigned long, state, inode->i_state) |
| 680 | ctf_integer(unsigned long, dirtied_when, inode->dirtied_when) |
| 681 | ctf_integer(unsigned long, writeback_index, |
| 682 | inode->i_mapping->writeback_index) |
| 683 | ctf_integer(long, nr_to_write, nr_to_write) |
| 684 | ctf_integer(unsigned long, wrote, |
| 685 | nr_to_write - wbc->nr_to_write) |
| 686 | ) |
| 687 | ) |
| 688 | |
| 689 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0)) |
| 690 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode_requeue, |
| 691 | TP_PROTO(struct inode *inode, |
| 692 | struct writeback_control *wbc, |
| 693 | unsigned long nr_to_write), |
| 694 | TP_ARGS(inode, wbc, nr_to_write) |
| 695 | ) |
| 696 | #endif |
| 697 | |
| 698 | LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode, |
| 699 | TP_PROTO(struct inode *inode, |
| 700 | struct writeback_control *wbc, |
| 701 | unsigned long nr_to_write), |
| 702 | TP_ARGS(inode, wbc, nr_to_write) |
| 703 | ) |
| 704 | #endif |
| 705 | |
| 706 | #endif /* LTTNG_TRACE_WRITEBACK_H */ |
| 707 | |
| 708 | /* This part must be outside protection */ |
| 709 | #include <probes/define_trace.h> |