| | 1 | #undef TRACE_SYSTEM |
| | 2 | #define TRACE_SYSTEM rcu |
| | 3 | |
| | 4 | #if !defined(LTTNG_TRACE_RCU_H) || defined(TRACE_HEADER_MULTI_READ) |
| | 5 | #define LTTNG_TRACE_RCU_H |
| | 6 | |
| | 7 | #include <probes/lttng-tracepoint-event.h> |
| | 8 | #include <linux/version.h> |
| | 9 | |
| | 10 | /* |
| | 11 | * Tracepoint for start/end markers used for utilization calculations. |
| | 12 | * By convention, the string is of the following forms: |
| | 13 | * |
| | 14 | * "Start <activity>" -- Mark the start of the specified activity, |
| | 15 | * such as "context switch". Nesting is permitted. |
| | 16 | * "End <activity>" -- Mark the end of the specified activity. |
| | 17 | * |
| | 18 | * An "@" character within "<activity>" is a comment character: Data |
| | 19 | * reduction scripts will ignore the "@" and the remainder of the line. |
| | 20 | */ |
| | 21 | LTTNG_TRACEPOINT_EVENT(rcu_utilization, |
| | 22 | |
| | 23 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 24 | TP_PROTO(const char *s), |
| | 25 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 26 | TP_PROTO(char *s), |
| | 27 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 28 | |
| | 29 | TP_ARGS(s), |
| | 30 | |
| | 31 | TP_FIELDS( |
| | 32 | ctf_string(s, s) |
| | 33 | ) |
| | 34 | ) |
| | 35 | |
| | 36 | #ifdef CONFIG_RCU_TRACE |
| | 37 | |
| | 38 | #if defined(CONFIG_TREE_RCU) \ |
| | 39 | || (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0) \ |
| | 40 | && defined(CONFIG_PREEMPT_RCU)) \ |
| | 41 | || defined(CONFIG_TREE_PREEMPT_RCU) |
| | 42 | |
| | 43 | /* |
| | 44 | * Tracepoint for grace-period events: starting and ending a grace |
| | 45 | * period ("start" and "end", respectively), a CPU noting the start |
| | 46 | * of a new grace period or the end of an old grace period ("cpustart" |
| | 47 | * and "cpuend", respectively), a CPU passing through a quiescent |
| | 48 | * state ("cpuqs"), a CPU coming online or going offline ("cpuonl" |
| | 49 | * and "cpuofl", respectively), and a CPU being kicked for being too |
| | 50 | * long in dyntick-idle mode ("kick"). |
| | 51 | */ |
| | 52 | LTTNG_TRACEPOINT_EVENT(rcu_grace_period, |
| | 53 | |
| | 54 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 55 | TP_PROTO(const char *rcuname, unsigned long gpnum, const char *gpevent), |
| | 56 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 57 | TP_PROTO(char *rcuname, unsigned long gpnum, char *gpevent), |
| | 58 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 59 | |
| | 60 | TP_ARGS(rcuname, gpnum, gpevent), |
| | 61 | |
| | 62 | TP_FIELDS( |
| | 63 | ctf_string(rcuname, rcuname) |
| | 64 | ctf_integer(unsigned long, gpnum, gpnum) |
| | 65 | ctf_string(gpevent, gpevent) |
| | 66 | ) |
| | 67 | ) |
| | 68 | |
| | 69 | /* |
| | 70 | * Tracepoint for grace-period-initialization events. These are |
| | 71 | * distinguished by the type of RCU, the new grace-period number, the |
| | 72 | * rcu_node structure level, the starting and ending CPU covered by the |
| | 73 | * rcu_node structure, and the mask of CPUs that will be waited for. |
| | 74 | * All but the type of RCU are extracted from the rcu_node structure. |
| | 75 | */ |
| | 76 | LTTNG_TRACEPOINT_EVENT(rcu_grace_period_init, |
| | 77 | |
| | 78 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 79 | TP_PROTO(const char *rcuname, unsigned long gpnum, u8 level, |
| | 80 | int grplo, int grphi, unsigned long qsmask), |
| | 81 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 82 | TP_PROTO(char *rcuname, unsigned long gpnum, u8 level, |
| | 83 | int grplo, int grphi, unsigned long qsmask), |
| | 84 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 85 | |
| | 86 | TP_ARGS(rcuname, gpnum, level, grplo, grphi, qsmask), |
| | 87 | |
| | 88 | TP_FIELDS( |
| | 89 | ctf_string(rcuname, rcuname) |
| | 90 | ctf_integer(unsigned long, gpnum, gpnum) |
| | 91 | ctf_integer(u8, level, level) |
| | 92 | ctf_integer(int, grplo, grplo) |
| | 93 | ctf_integer(int, grphi, grphi) |
| | 94 | ctf_integer(unsigned long, qsmask, qsmask) |
| | 95 | ) |
| | 96 | ) |
| | 97 | |
| | 98 | /* |
| | 99 | * Tracepoint for tasks blocking within preemptible-RCU read-side |
| | 100 | * critical sections. Track the type of RCU (which one day might |
| | 101 | * include SRCU), the grace-period number that the task is blocking |
| | 102 | * (the current or the next), and the task's PID. |
| | 103 | */ |
| | 104 | LTTNG_TRACEPOINT_EVENT(rcu_preempt_task, |
| | 105 | |
| | 106 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 107 | TP_PROTO(const char *rcuname, int pid, unsigned long gpnum), |
| | 108 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 109 | TP_PROTO(char *rcuname, int pid, unsigned long gpnum), |
| | 110 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 111 | |
| | 112 | TP_ARGS(rcuname, pid, gpnum), |
| | 113 | |
| | 114 | TP_FIELDS( |
| | 115 | ctf_string(rcuname, rcuname) |
| | 116 | ctf_integer(unsigned long, gpnum, gpnum) |
| | 117 | ctf_integer(int, pid, pid) |
| | 118 | ) |
| | 119 | ) |
| | 120 | |
| | 121 | /* |
| | 122 | * Tracepoint for tasks that blocked within a given preemptible-RCU |
| | 123 | * read-side critical section exiting that critical section. Track the |
| | 124 | * type of RCU (which one day might include SRCU) and the task's PID. |
| | 125 | */ |
| | 126 | LTTNG_TRACEPOINT_EVENT(rcu_unlock_preempted_task, |
| | 127 | |
| | 128 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 129 | TP_PROTO(const char *rcuname, unsigned long gpnum, int pid), |
| | 130 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 131 | TP_PROTO(char *rcuname, unsigned long gpnum, int pid), |
| | 132 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 133 | |
| | 134 | TP_ARGS(rcuname, gpnum, pid), |
| | 135 | |
| | 136 | TP_FIELDS( |
| | 137 | ctf_string(rcuname, rcuname) |
| | 138 | ctf_integer(unsigned long, gpnum, gpnum) |
| | 139 | ctf_integer(int, pid, pid) |
| | 140 | ) |
| | 141 | ) |
| | 142 | |
| | 143 | /* |
| | 144 | * Tracepoint for quiescent-state-reporting events. These are |
| | 145 | * distinguished by the type of RCU, the grace-period number, the |
| | 146 | * mask of quiescent lower-level entities, the rcu_node structure level, |
| | 147 | * the starting and ending CPU covered by the rcu_node structure, and |
| | 148 | * whether there are any blocked tasks blocking the current grace period. |
| | 149 | * All but the type of RCU are extracted from the rcu_node structure. |
| | 150 | */ |
| | 151 | LTTNG_TRACEPOINT_EVENT(rcu_quiescent_state_report, |
| | 152 | |
| | 153 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 154 | TP_PROTO(const char *rcuname, unsigned long gpnum, |
| | 155 | unsigned long mask, unsigned long qsmask, |
| | 156 | u8 level, int grplo, int grphi, int gp_tasks), |
| | 157 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 158 | TP_PROTO(char *rcuname, unsigned long gpnum, |
| | 159 | unsigned long mask, unsigned long qsmask, |
| | 160 | u8 level, int grplo, int grphi, int gp_tasks), |
| | 161 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 162 | |
| | 163 | TP_ARGS(rcuname, gpnum, mask, qsmask, level, grplo, grphi, gp_tasks), |
| | 164 | |
| | 165 | TP_FIELDS( |
| | 166 | ctf_string(rcuname, rcuname) |
| | 167 | ctf_integer(unsigned long, gpnum, gpnum) |
| | 168 | ctf_integer(unsigned long, mask, mask) |
| | 169 | ctf_integer(unsigned long, qsmask, qsmask) |
| | 170 | ctf_integer(u8, level, level) |
| | 171 | ctf_integer(int, grplo, grplo) |
| | 172 | ctf_integer(int, grphi, grphi) |
| | 173 | ctf_integer(u8, gp_tasks, gp_tasks) |
| | 174 | ) |
| | 175 | ) |
| | 176 | |
| | 177 | /* |
| | 178 | * Tracepoint for quiescent states detected by force_quiescent_state(). |
| | 179 | * These trace events include the type of RCU, the grace-period number |
| | 180 | * that was blocked by the CPU, the CPU itself, and the type of quiescent |
| | 181 | * state, which can be "dti" for dyntick-idle mode, "ofl" for CPU offline, |
| | 182 | * or "kick" when kicking a CPU that has been in dyntick-idle mode for |
| | 183 | * too long. |
| | 184 | */ |
| | 185 | LTTNG_TRACEPOINT_EVENT(rcu_fqs, |
| | 186 | |
| | 187 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 188 | TP_PROTO(const char *rcuname, unsigned long gpnum, int cpu, const char *qsevent), |
| | 189 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 190 | TP_PROTO(char *rcuname, unsigned long gpnum, int cpu, char *qsevent), |
| | 191 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 192 | |
| | 193 | TP_ARGS(rcuname, gpnum, cpu, qsevent), |
| | 194 | |
| | 195 | TP_FIELDS( |
| | 196 | ctf_integer(unsigned long, gpnum, gpnum) |
| | 197 | ctf_integer(int, cpu, cpu) |
| | 198 | ctf_string(rcuname, rcuname) |
| | 199 | ctf_string(qsevent, qsevent) |
| | 200 | ) |
| | 201 | ) |
| | 202 | |
| | 203 | #endif /* |
| | 204 | * #if defined(CONFIG_TREE_RCU) |
| | 205 | * || (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0) |
| | 206 | * && defined(CONFIG_PREEMPT_RCU)) |
| | 207 | * || defined(CONFIG_TREE_PREEMPT_RCU) |
| | 208 | */ |
| | 209 | |
| | 210 | /* |
| | 211 | * Tracepoint for dyntick-idle entry/exit events. These take a string |
| | 212 | * as argument: "Start" for entering dyntick-idle mode, "End" for |
| | 213 | * leaving it, "--=" for events moving towards idle, and "++=" for events |
| | 214 | * moving away from idle. "Error on entry: not idle task" and "Error on |
| | 215 | * exit: not idle task" indicate that a non-idle task is erroneously |
| | 216 | * toying with the idle loop. |
| | 217 | * |
| | 218 | * These events also take a pair of numbers, which indicate the nesting |
| | 219 | * depth before and after the event of interest. Note that task-related |
| | 220 | * events use the upper bits of each number, while interrupt-related |
| | 221 | * events use the lower bits. |
| | 222 | */ |
| | 223 | LTTNG_TRACEPOINT_EVENT(rcu_dyntick, |
| | 224 | |
| | 225 | |
| | 226 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 227 | TP_PROTO(const char *polarity, long long oldnesting, long long newnesting), |
| | 228 | |
| | 229 | TP_ARGS(polarity, oldnesting, newnesting), |
| | 230 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| | 231 | TP_PROTO(char *polarity, long long oldnesting, long long newnesting), |
| | 232 | |
| | 233 | TP_ARGS(polarity, oldnesting, newnesting), |
| | 234 | #else |
| | 235 | TP_PROTO(char *polarity), |
| | 236 | |
| | 237 | TP_ARGS(polarity), |
| | 238 | #endif |
| | 239 | |
| | 240 | TP_FIELDS( |
| | 241 | ctf_string(polarity, polarity) |
| | 242 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| | 243 | ctf_integer(long long, oldnesting, oldnesting) |
| | 244 | ctf_integer(long long, newnesting, newnesting) |
| | 245 | #endif |
| | 246 | ) |
| | 247 | ) |
| | 248 | |
| | 249 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| | 250 | /* |
| | 251 | * Tracepoint for RCU preparation for idle, the goal being to get RCU |
| | 252 | * processing done so that the current CPU can shut off its scheduling |
| | 253 | * clock and enter dyntick-idle mode. One way to accomplish this is |
| | 254 | * to drain all RCU callbacks from this CPU, and the other is to have |
| | 255 | * done everything RCU requires for the current grace period. In this |
| | 256 | * latter case, the CPU will be awakened at the end of the current grace |
| | 257 | * period in order to process the remainder of its callbacks. |
| | 258 | * |
| | 259 | * These tracepoints take a string as argument: |
| | 260 | * |
| | 261 | * "No callbacks": Nothing to do, no callbacks on this CPU. |
| | 262 | * "In holdoff": Nothing to do, holding off after unsuccessful attempt. |
| | 263 | * "Begin holdoff": Attempt failed, don't retry until next jiffy. |
| | 264 | * "Dyntick with callbacks": Entering dyntick-idle despite callbacks. |
| | 265 | * "Dyntick with lazy callbacks": Entering dyntick-idle w/lazy callbacks. |
| | 266 | * "More callbacks": Still more callbacks, try again to clear them out. |
| | 267 | * "Callbacks drained": All callbacks processed, off to dyntick idle! |
| | 268 | * "Timer": Timer fired to cause CPU to continue processing callbacks. |
| | 269 | * "Demigrate": Timer fired on wrong CPU, woke up correct CPU. |
| | 270 | * "Cleanup after idle": Idle exited, timer canceled. |
| | 271 | */ |
| | 272 | LTTNG_TRACEPOINT_EVENT(rcu_prep_idle, |
| | 273 | |
| | 274 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 275 | TP_PROTO(const char *reason), |
| | 276 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 277 | TP_PROTO(char *reason), |
| | 278 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 279 | |
| | 280 | TP_ARGS(reason), |
| | 281 | |
| | 282 | TP_FIELDS( |
| | 283 | ctf_string(reason, reason) |
| | 284 | ) |
| | 285 | ) |
| | 286 | #endif |
| | 287 | |
| | 288 | /* |
| | 289 | * Tracepoint for the registration of a single RCU callback function. |
| | 290 | * The first argument is the type of RCU, the second argument is |
| | 291 | * a pointer to the RCU callback itself, the third element is the |
| | 292 | * number of lazy callbacks queued, and the fourth element is the |
| | 293 | * total number of callbacks queued. |
| | 294 | */ |
| | 295 | LTTNG_TRACEPOINT_EVENT(rcu_callback, |
| | 296 | |
| | 297 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 298 | TP_PROTO(const char *rcuname, struct rcu_head *rhp, long qlen_lazy, |
| | 299 | long qlen), |
| | 300 | |
| | 301 | TP_ARGS(rcuname, rhp, qlen_lazy, qlen), |
| | 302 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) |
| | 303 | TP_PROTO(char *rcuname, struct rcu_head *rhp, long qlen_lazy, |
| | 304 | long qlen), |
| | 305 | |
| | 306 | TP_ARGS(rcuname, rhp, qlen_lazy, qlen), |
| | 307 | #else |
| | 308 | TP_PROTO(char *rcuname, struct rcu_head *rhp, long qlen), |
| | 309 | |
| | 310 | TP_ARGS(rcuname, rhp, qlen), |
| | 311 | #endif |
| | 312 | |
| | 313 | TP_FIELDS( |
| | 314 | ctf_string(rcuname, rcuname) |
| | 315 | ctf_integer_hex(void *, rhp, rhp) |
| | 316 | ctf_integer_hex(void *, func, rhp->func) |
| | 317 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) |
| | 318 | ctf_integer(long, qlen_lazy, qlen_lazy) |
| | 319 | #endif |
| | 320 | ctf_integer(long, qlen, qlen) |
| | 321 | ) |
| | 322 | ) |
| | 323 | |
| | 324 | /* |
| | 325 | * Tracepoint for the registration of a single RCU callback of the special |
| | 326 | * kfree() form. The first argument is the RCU type, the second argument |
| | 327 | * is a pointer to the RCU callback, the third argument is the offset |
| | 328 | * of the callback within the enclosing RCU-protected data structure, |
| | 329 | * the fourth argument is the number of lazy callbacks queued, and the |
| | 330 | * fifth argument is the total number of callbacks queued. |
| | 331 | */ |
| | 332 | LTTNG_TRACEPOINT_EVENT(rcu_kfree_callback, |
| | 333 | |
| | 334 | |
| | 335 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 336 | TP_PROTO(const char *rcuname, struct rcu_head *rhp, unsigned long offset, |
| | 337 | long qlen_lazy, long qlen), |
| | 338 | |
| | 339 | TP_ARGS(rcuname, rhp, offset, qlen_lazy, qlen), |
| | 340 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) |
| | 341 | TP_PROTO(char *rcuname, struct rcu_head *rhp, unsigned long offset, |
| | 342 | long qlen_lazy, long qlen), |
| | 343 | |
| | 344 | TP_ARGS(rcuname, rhp, offset, qlen_lazy, qlen), |
| | 345 | #else |
| | 346 | TP_PROTO(char *rcuname, struct rcu_head *rhp, unsigned long offset, |
| | 347 | long qlen), |
| | 348 | |
| | 349 | TP_ARGS(rcuname, rhp, offset, qlen), |
| | 350 | #endif |
| | 351 | |
| | 352 | TP_FIELDS( |
| | 353 | ctf_string(rcuname, rcuname) |
| | 354 | ctf_integer_hex(void *, rhp, rhp) |
| | 355 | ctf_integer_hex(unsigned long, offset, offset) |
| | 356 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) |
| | 357 | ctf_integer(long, qlen_lazy, qlen_lazy) |
| | 358 | #endif |
| | 359 | ctf_integer(long, qlen, qlen) |
| | 360 | ) |
| | 361 | ) |
| | 362 | |
| | 363 | /* |
| | 364 | * Tracepoint for marking the beginning rcu_do_batch, performed to start |
| | 365 | * RCU callback invocation. The first argument is the RCU flavor, |
| | 366 | * the second is the number of lazy callbacks queued, the third is |
| | 367 | * the total number of callbacks queued, and the fourth argument is |
| | 368 | * the current RCU-callback batch limit. |
| | 369 | */ |
| | 370 | LTTNG_TRACEPOINT_EVENT(rcu_batch_start, |
| | 371 | |
| | 372 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 373 | TP_PROTO(const char *rcuname, long qlen_lazy, long qlen, long blimit), |
| | 374 | |
| | 375 | TP_ARGS(rcuname, qlen_lazy, qlen, blimit), |
| | 376 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) |
| | 377 | TP_PROTO(char *rcuname, long qlen_lazy, long qlen, long blimit), |
| | 378 | |
| | 379 | TP_ARGS(rcuname, qlen_lazy, qlen, blimit), |
| | 380 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) |
| | 381 | TP_PROTO(char *rcuname, long qlen_lazy, long qlen, int blimit), |
| | 382 | |
| | 383 | TP_ARGS(rcuname, qlen_lazy, qlen, blimit), |
| | 384 | #else |
| | 385 | TP_PROTO(char *rcuname, long qlen, int blimit), |
| | 386 | |
| | 387 | TP_ARGS(rcuname, qlen, blimit), |
| | 388 | #endif |
| | 389 | |
| | 390 | TP_FIELDS( |
| | 391 | ctf_string(rcuname, rcuname) |
| | 392 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) |
| | 393 | ctf_integer(long, qlen_lazy, qlen_lazy) |
| | 394 | #endif |
| | 395 | ctf_integer(long, qlen, qlen) |
| | 396 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) |
| | 397 | ctf_integer(long, blimit, blimit) |
| | 398 | #else |
| | 399 | ctf_integer(int, blimit, blimit) |
| | 400 | #endif |
| | 401 | ) |
| | 402 | ) |
| | 403 | |
| | 404 | /* |
| | 405 | * Tracepoint for the invocation of a single RCU callback function. |
| | 406 | * The first argument is the type of RCU, and the second argument is |
| | 407 | * a pointer to the RCU callback itself. |
| | 408 | */ |
| | 409 | LTTNG_TRACEPOINT_EVENT(rcu_invoke_callback, |
| | 410 | |
| | 411 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 412 | TP_PROTO(const char *rcuname, struct rcu_head *rhp), |
| | 413 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 414 | TP_PROTO(char *rcuname, struct rcu_head *rhp), |
| | 415 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 416 | |
| | 417 | TP_ARGS(rcuname, rhp), |
| | 418 | |
| | 419 | TP_FIELDS( |
| | 420 | ctf_string(rcuname, rcuname) |
| | 421 | ctf_integer_hex(void *, rhp, rhp) |
| | 422 | ctf_integer_hex(void *, func, rhp->func) |
| | 423 | ) |
| | 424 | ) |
| | 425 | |
| | 426 | /* |
| | 427 | * Tracepoint for the invocation of a single RCU callback of the special |
| | 428 | * kfree() form. The first argument is the RCU flavor, the second |
| | 429 | * argument is a pointer to the RCU callback, and the third argument |
| | 430 | * is the offset of the callback within the enclosing RCU-protected |
| | 431 | * data structure. |
| | 432 | */ |
| | 433 | LTTNG_TRACEPOINT_EVENT(rcu_invoke_kfree_callback, |
| | 434 | |
| | 435 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 436 | TP_PROTO(const char *rcuname, struct rcu_head *rhp, unsigned long offset), |
| | 437 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 438 | TP_PROTO(char *rcuname, struct rcu_head *rhp, unsigned long offset), |
| | 439 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 440 | |
| | 441 | TP_ARGS(rcuname, rhp, offset), |
| | 442 | |
| | 443 | TP_FIELDS( |
| | 444 | ctf_string(rcuname, rcuname) |
| | 445 | ctf_integer_hex(void *, rhp, rhp) |
| | 446 | ctf_integer(unsigned long, offset, offset) |
| | 447 | ) |
| | 448 | ) |
| | 449 | |
| | 450 | /* |
| | 451 | * Tracepoint for exiting rcu_do_batch after RCU callbacks have been |
| | 452 | * invoked. The first argument is the name of the RCU flavor, |
| | 453 | * the second argument is number of callbacks actually invoked, |
| | 454 | * the third argument (cb) is whether or not any of the callbacks that |
| | 455 | * were ready to invoke at the beginning of this batch are still |
| | 456 | * queued, the fourth argument (nr) is the return value of need_resched(), |
| | 457 | * the fifth argument (iit) is 1 if the current task is the idle task, |
| | 458 | * and the sixth argument (risk) is the return value from |
| | 459 | * rcu_is_callbacks_kthread(). |
| | 460 | */ |
| | 461 | LTTNG_TRACEPOINT_EVENT(rcu_batch_end, |
| | 462 | |
| | 463 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0)) |
| | 464 | TP_PROTO(const char *rcuname, int callbacks_invoked, |
| | 465 | char cb, char nr, char iit, char risk), |
| | 466 | |
| | 467 | TP_ARGS(rcuname, callbacks_invoked, cb, nr, iit, risk), |
| | 468 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 469 | TP_PROTO(const char *rcuname, int callbacks_invoked, |
| | 470 | bool cb, bool nr, bool iit, bool risk), |
| | 471 | |
| | 472 | TP_ARGS(rcuname, callbacks_invoked, cb, nr, iit, risk), |
| | 473 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| | 474 | TP_PROTO(char *rcuname, int callbacks_invoked, |
| | 475 | bool cb, bool nr, bool iit, bool risk), |
| | 476 | |
| | 477 | TP_ARGS(rcuname, callbacks_invoked, cb, nr, iit, risk), |
| | 478 | #else |
| | 479 | TP_PROTO(char *rcuname, int callbacks_invoked), |
| | 480 | |
| | 481 | TP_ARGS(rcuname, callbacks_invoked), |
| | 482 | #endif |
| | 483 | |
| | 484 | TP_FIELDS( |
| | 485 | ctf_string(rcuname, rcuname) |
| | 486 | ctf_integer(int, callbacks_invoked, callbacks_invoked) |
| | 487 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0)) |
| | 488 | ctf_integer(char, cb, cb) |
| | 489 | ctf_integer(char, nr, nr) |
| | 490 | ctf_integer(char, iit, iit) |
| | 491 | ctf_integer(char, risk, risk) |
| | 492 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| | 493 | ctf_integer(bool, cb, cb) |
| | 494 | ctf_integer(bool, nr, nr) |
| | 495 | ctf_integer(bool, iit, iit) |
| | 496 | ctf_integer(bool, risk, risk) |
| | 497 | #endif |
| | 498 | ) |
| | 499 | ) |
| | 500 | |
| | 501 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| | 502 | /* |
| | 503 | * Tracepoint for rcutorture readers. The first argument is the name |
| | 504 | * of the RCU flavor from rcutorture's viewpoint and the second argument |
| | 505 | * is the callback address. |
| | 506 | */ |
| | 507 | LTTNG_TRACEPOINT_EVENT(rcu_torture_read, |
| | 508 | |
| | 509 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 510 | TP_PROTO(const char *rcutorturename, struct rcu_head *rhp, |
| | 511 | unsigned long secs, unsigned long c_old, unsigned long c), |
| | 512 | |
| | 513 | TP_ARGS(rcutorturename, rhp, secs, c_old, c), |
| | 514 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) |
| | 515 | TP_PROTO(char *rcutorturename, struct rcu_head *rhp, |
| | 516 | unsigned long secs, unsigned long c_old, unsigned long c), |
| | 517 | |
| | 518 | TP_ARGS(rcutorturename, rhp, secs, c_old, c), |
| | 519 | #else |
| | 520 | TP_PROTO(char *rcutorturename, struct rcu_head *rhp), |
| | 521 | |
| | 522 | TP_ARGS(rcutorturename, rhp), |
| | 523 | #endif |
| | 524 | |
| | 525 | TP_FIELDS( |
| | 526 | ctf_string(rcutorturename, rcutorturename) |
| | 527 | ctf_integer_hex(struct rcu_head *, rhp, rhp) |
| | 528 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) |
| | 529 | ctf_integer(unsigned long, secs, secs) |
| | 530 | ctf_integer(unsigned long, c_old, c_old) |
| | 531 | ctf_integer(unsigned long, c, c) |
| | 532 | #endif |
| | 533 | ) |
| | 534 | ) |
| | 535 | #endif |
| | 536 | |
| | 537 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)) |
| | 538 | /* |
| | 539 | * Tracepoint for _rcu_barrier() execution. The string "s" describes |
| | 540 | * the _rcu_barrier phase: |
| | 541 | * "Begin": rcu_barrier_callback() started. |
| | 542 | * "Check": rcu_barrier_callback() checking for piggybacking. |
| | 543 | * "EarlyExit": rcu_barrier_callback() piggybacked, thus early exit. |
| | 544 | * "Inc1": rcu_barrier_callback() piggyback check counter incremented. |
| | 545 | * "Offline": rcu_barrier_callback() found offline CPU |
| | 546 | * "OnlineQ": rcu_barrier_callback() found online CPU with callbacks. |
| | 547 | * "OnlineNQ": rcu_barrier_callback() found online CPU, no callbacks. |
| | 548 | * "IRQ": An rcu_barrier_callback() callback posted on remote CPU. |
| | 549 | * "CB": An rcu_barrier_callback() invoked a callback, not the last. |
| | 550 | * "LastCB": An rcu_barrier_callback() invoked the last callback. |
| | 551 | * "Inc2": rcu_barrier_callback() piggyback check counter incremented. |
| | 552 | * The "cpu" argument is the CPU or -1 if meaningless, the "cnt" argument |
| | 553 | * is the count of remaining callbacks, and "done" is the piggybacking count. |
| | 554 | */ |
| | 555 | LTTNG_TRACEPOINT_EVENT(rcu_barrier, |
| | 556 | |
| | 557 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
| | 558 | TP_PROTO(const char *rcuname, const char *s, int cpu, int cnt, unsigned long done), |
| | 559 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 560 | TP_PROTO(char *rcuname, char *s, int cpu, int cnt, unsigned long done), |
| | 561 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
| | 562 | |
| | 563 | TP_ARGS(rcuname, s, cpu, cnt, done), |
| | 564 | |
| | 565 | TP_FIELDS( |
| | 566 | ctf_string(rcuname, rcuname) |
| | 567 | ctf_string(s, s) |
| | 568 | ctf_integer(int, cpu, cpu) |
| | 569 | ctf_integer(int, cnt, cnt) |
| | 570 | ctf_integer(unsigned long, done, done) |
| | 571 | ) |
| | 572 | ) |
| | 573 | #endif |
| | 574 | |
| | 575 | #else /* #ifdef CONFIG_RCU_TRACE */ |
| | 576 | |
| | 577 | #define trace_rcu_grace_period(rcuname, gpnum, gpevent) do { } while (0) |
| | 578 | #define trace_rcu_grace_period_init(rcuname, gpnum, level, grplo, grphi, \ |
| | 579 | qsmask) do { } while (0) |
| | 580 | #define trace_rcu_preempt_task(rcuname, pid, gpnum) do { } while (0) |
| | 581 | #define trace_rcu_unlock_preempted_task(rcuname, gpnum, pid) do { } while (0) |
| | 582 | #define trace_rcu_quiescent_state_report(rcuname, gpnum, mask, qsmask, level, \ |
| | 583 | grplo, grphi, gp_tasks) do { } \ |
| | 584 | while (0) |
| | 585 | #define trace_rcu_fqs(rcuname, gpnum, cpu, qsevent) do { } while (0) |
| | 586 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| | 587 | #define trace_rcu_dyntick(polarity, oldnesting, newnesting) do { } while (0) |
| | 588 | #else |
| | 589 | #define trace_rcu_dyntick(polarity) do { } while (0) |
| | 590 | #endif |
| | 591 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| | 592 | #define trace_rcu_prep_idle(reason) do { } while (0) |
| | 593 | #endif |
| | 594 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) |
| | 595 | #define trace_rcu_callback(rcuname, rhp, qlen_lazy, qlen) do { } while (0) |
| | 596 | #define trace_rcu_kfree_callback(rcuname, rhp, offset, qlen_lazy, qlen) \ |
| | 597 | do { } while (0) |
| | 598 | #define trace_rcu_batch_start(rcuname, qlen_lazy, qlen, blimit) \ |
| | 599 | do { } while (0) |
| | 600 | #else |
| | 601 | #define trace_rcu_callback(rcuname, rhp, qlen) do { } while (0) |
| | 602 | #define trace_rcu_kfree_callback(rcuname, rhp, offset, qlen) do { } while (0) |
| | 603 | #define trace_rcu_batch_start(rcuname, qlen, blimit) do { } while (0) |
| | 604 | #endif |
| | 605 | #define trace_rcu_invoke_callback(rcuname, rhp) do { } while (0) |
| | 606 | #define trace_rcu_invoke_kfree_callback(rcuname, rhp, offset) do { } while (0) |
| | 607 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| | 608 | #define trace_rcu_batch_end(rcuname, callbacks_invoked, cb, nr, iit, risk) \ |
| | 609 | do { } while (0) |
| | 610 | #else |
| | 611 | #define trace_rcu_batch_end(rcuname, callbacks_invoked) do { } while (0) |
| | 612 | #endif |
| | 613 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) |
| | 614 | #define trace_rcu_torture_read(rcutorturename, rhp, secs, c_old, c) \ |
| | 615 | do { } while (0) |
| | 616 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
| | 617 | #define trace_rcu_torture_read(rcutorturename, rhp) do { } while (0) |
| | 618 | #endif |
| | 619 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)) |
| | 620 | #define trace_rcu_barrier(name, s, cpu, cnt, done) do { } while (0) |
| | 621 | #endif |
| | 622 | #endif /* #else #ifdef CONFIG_RCU_TRACE */ |
| | 623 | |
| | 624 | #endif /* LTTNG_TRACE_RCU_H */ |
| | 625 | |
| | 626 | /* This part must be outside protection */ |
| | 627 | #include <probes/define_trace.h> |
projects / lttng-modules.git / blame_incremental