| 1 | #undef TRACE_SYSTEM |
| 2 | #define TRACE_SYSTEM workqueue |
| 3 | |
| 4 | #if !defined(_TRACE_WORKQUEUE_H) || defined(TRACE_HEADER_MULTI_READ) |
| 5 | #define _TRACE_WORKQUEUE_H |
| 6 | |
| 7 | #include <linux/tracepoint.h> |
| 8 | #include <linux/workqueue.h> |
| 9 | #include <linux/version.h> |
| 10 | |
| 11 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)) |
| 12 | |
| 13 | #ifndef _TRACE_WORKQUEUE_DEF_ |
| 14 | #define _TRACE_WORKQUEUE_DEF_ |
| 15 | |
| 16 | struct worker; |
| 17 | struct global_cwq; |
| 18 | |
| 19 | #endif |
| 20 | |
| 21 | DECLARE_EVENT_CLASS(workqueue_work, |
| 22 | |
| 23 | TP_PROTO(struct work_struct *work), |
| 24 | |
| 25 | TP_ARGS(work), |
| 26 | |
| 27 | TP_STRUCT__entry( |
| 28 | __field( void *, work ) |
| 29 | ), |
| 30 | |
| 31 | TP_fast_assign( |
| 32 | tp_assign(work, work) |
| 33 | ), |
| 34 | |
| 35 | TP_printk("work struct %p", __entry->work) |
| 36 | ) |
| 37 | |
| 38 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) |
| 39 | /** |
| 40 | * workqueue_queue_work - called when a work gets queued |
| 41 | * @req_cpu: the requested cpu |
| 42 | * @cwq: pointer to struct cpu_workqueue_struct |
| 43 | * @work: pointer to struct work_struct |
| 44 | * |
| 45 | * This event occurs when a work is queued immediately or once a |
| 46 | * delayed work is actually queued on a workqueue (ie: once the delay |
| 47 | * has been reached). |
| 48 | */ |
| 49 | TRACE_EVENT(workqueue_queue_work, |
| 50 | |
| 51 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) |
| 52 | TP_PROTO(unsigned int req_cpu, struct pool_workqueue *pwq, |
| 53 | struct work_struct *work), |
| 54 | |
| 55 | TP_ARGS(req_cpu, pwq, work), |
| 56 | #else |
| 57 | TP_PROTO(unsigned int req_cpu, struct cpu_workqueue_struct *cwq, |
| 58 | struct work_struct *work), |
| 59 | |
| 60 | TP_ARGS(req_cpu, cwq, work), |
| 61 | #endif |
| 62 | |
| 63 | TP_STRUCT__entry( |
| 64 | __field( void *, work ) |
| 65 | __field( void *, function) |
| 66 | __field( unsigned int, req_cpu ) |
| 67 | ), |
| 68 | |
| 69 | TP_fast_assign( |
| 70 | tp_assign(work, work) |
| 71 | tp_assign(function, work->func) |
| 72 | tp_assign(req_cpu, req_cpu) |
| 73 | ), |
| 74 | |
| 75 | TP_printk("work struct=%p function=%pf req_cpu=%u", |
| 76 | __entry->work, __entry->function, |
| 77 | __entry->req_cpu) |
| 78 | ) |
| 79 | |
| 80 | /** |
| 81 | * workqueue_activate_work - called when a work gets activated |
| 82 | * @work: pointer to struct work_struct |
| 83 | * |
| 84 | * This event occurs when a queued work is put on the active queue, |
| 85 | * which happens immediately after queueing unless @max_active limit |
| 86 | * is reached. |
| 87 | */ |
| 88 | DEFINE_EVENT(workqueue_work, workqueue_activate_work, |
| 89 | |
| 90 | TP_PROTO(struct work_struct *work), |
| 91 | |
| 92 | TP_ARGS(work) |
| 93 | ) |
| 94 | #endif |
| 95 | |
| 96 | /** |
| 97 | * workqueue_execute_start - called immediately before the workqueue callback |
| 98 | * @work: pointer to struct work_struct |
| 99 | * |
| 100 | * Allows to track workqueue execution. |
| 101 | */ |
| 102 | TRACE_EVENT(workqueue_execute_start, |
| 103 | |
| 104 | TP_PROTO(struct work_struct *work), |
| 105 | |
| 106 | TP_ARGS(work), |
| 107 | |
| 108 | TP_STRUCT__entry( |
| 109 | __field( void *, work ) |
| 110 | __field( void *, function) |
| 111 | ), |
| 112 | |
| 113 | TP_fast_assign( |
| 114 | tp_assign(work, work) |
| 115 | tp_assign(function, work->func) |
| 116 | ), |
| 117 | |
| 118 | TP_printk("work struct %p: function %pf", __entry->work, __entry->function) |
| 119 | ) |
| 120 | |
| 121 | /** |
| 122 | * workqueue_execute_end - called immediately after the workqueue callback |
| 123 | * @work: pointer to struct work_struct |
| 124 | * |
| 125 | * Allows to track workqueue execution. |
| 126 | */ |
| 127 | DEFINE_EVENT(workqueue_work, workqueue_execute_end, |
| 128 | |
| 129 | TP_PROTO(struct work_struct *work), |
| 130 | |
| 131 | TP_ARGS(work) |
| 132 | ) |
| 133 | |
| 134 | #else |
| 135 | |
| 136 | DECLARE_EVENT_CLASS(workqueue, |
| 137 | |
| 138 | TP_PROTO(struct task_struct *wq_thread, struct work_struct *work), |
| 139 | |
| 140 | TP_ARGS(wq_thread, work), |
| 141 | |
| 142 | TP_STRUCT__entry( |
| 143 | __array(char, thread_comm, TASK_COMM_LEN) |
| 144 | __field(pid_t, thread_pid) |
| 145 | __field(work_func_t, func) |
| 146 | ), |
| 147 | |
| 148 | TP_fast_assign( |
| 149 | tp_memcpy(thread_comm, wq_thread->comm, TASK_COMM_LEN) |
| 150 | tp_assign(thread_pid, wq_thread->pid) |
| 151 | tp_assign(func, work->func) |
| 152 | ), |
| 153 | |
| 154 | TP_printk("thread=%s:%d func=%pf", __entry->thread_comm, |
| 155 | __entry->thread_pid, __entry->func) |
| 156 | ) |
| 157 | |
| 158 | DEFINE_EVENT(workqueue, workqueue_insertion, |
| 159 | |
| 160 | TP_PROTO(struct task_struct *wq_thread, struct work_struct *work), |
| 161 | |
| 162 | TP_ARGS(wq_thread, work) |
| 163 | ) |
| 164 | |
| 165 | DEFINE_EVENT(workqueue, workqueue_execution, |
| 166 | |
| 167 | TP_PROTO(struct task_struct *wq_thread, struct work_struct *work), |
| 168 | |
| 169 | TP_ARGS(wq_thread, work) |
| 170 | ) |
| 171 | |
| 172 | /* Trace the creation of one workqueue thread on a cpu */ |
| 173 | TRACE_EVENT(workqueue_creation, |
| 174 | |
| 175 | TP_PROTO(struct task_struct *wq_thread, int cpu), |
| 176 | |
| 177 | TP_ARGS(wq_thread, cpu), |
| 178 | |
| 179 | TP_STRUCT__entry( |
| 180 | __array(char, thread_comm, TASK_COMM_LEN) |
| 181 | __field(pid_t, thread_pid) |
| 182 | __field(int, cpu) |
| 183 | ), |
| 184 | |
| 185 | TP_fast_assign( |
| 186 | tp_memcpy(thread_comm, wq_thread->comm, TASK_COMM_LEN) |
| 187 | tp_assign(thread_pid, wq_thread->pid) |
| 188 | tp_assign(cpu, cpu) |
| 189 | ), |
| 190 | |
| 191 | TP_printk("thread=%s:%d cpu=%d", __entry->thread_comm, |
| 192 | __entry->thread_pid, __entry->cpu) |
| 193 | ) |
| 194 | |
| 195 | TRACE_EVENT(workqueue_destruction, |
| 196 | |
| 197 | TP_PROTO(struct task_struct *wq_thread), |
| 198 | |
| 199 | TP_ARGS(wq_thread), |
| 200 | |
| 201 | TP_STRUCT__entry( |
| 202 | __array(char, thread_comm, TASK_COMM_LEN) |
| 203 | __field(pid_t, thread_pid) |
| 204 | ), |
| 205 | |
| 206 | TP_fast_assign( |
| 207 | tp_memcpy(thread_comm, wq_thread->comm, TASK_COMM_LEN) |
| 208 | tp_assign(thread_pid, wq_thread->pid) |
| 209 | ), |
| 210 | |
| 211 | TP_printk("thread=%s:%d", __entry->thread_comm, __entry->thread_pid) |
| 212 | ) |
| 213 | |
| 214 | #endif |
| 215 | |
| 216 | #endif /* _TRACE_WORKQUEUE_H */ |
| 217 | |
| 218 | /* This part must be outside protection */ |
| 219 | #include "../../../probes/define_trace.h" |