kernel/trace/trace_sched_switch.c

31 	struct ring_buffer *buffer = tr->buffer;  in tracing_sched_switch_trace()
40 	entry->prev_pid			= prev->pid;  in tracing_sched_switch_trace()
41 	entry->prev_prio		= prev->prio;  in tracing_sched_switch_trace()
42 	entry->prev_state		= prev->state;  in tracing_sched_switch_trace()
43 	entry->next_pid			= next->pid;  in tracing_sched_switch_trace()
44 	entry->next_prio		= next->prio;  in tracing_sched_switch_trace()
45 	entry->next_state		= next->state;  in tracing_sched_switch_trace()
46 	entry->next_cpu	= task_cpu(next);  in tracing_sched_switch_trace()
72 	data = ctx_trace->data[cpu];  in probe_sched_switch()
74 	if (likely(!atomic_read(&data->disabled)))  in probe_sched_switch()
89 	struct ring_buffer *buffer = tr->buffer;  in tracing_sched_wakeup_trace()
96 	entry->prev_pid			= curr->pid;  in tracing_sched_wakeup_trace()
97 	entry->prev_prio		= curr->prio;  in tracing_sched_wakeup_trace()
98 	entry->prev_state		= curr->state;  in tracing_sched_wakeup_trace()
99 	entry->next_pid			= wakee->pid;  in tracing_sched_wakeup_trace()
100 	entry->next_prio		= wakee->prio;  in tracing_sched_wakeup_trace()
101 	entry->next_state		= wakee->state;  in tracing_sched_wakeup_trace()
102 	entry->next_cpu			= task_cpu(wakee);  in tracing_sched_wakeup_trace()
106 	ftrace_trace_stack(tr->buffer, flags, 6, pc);  in tracing_sched_wakeup_trace()
107 	ftrace_trace_userstack(tr->buffer, flags, pc);  in tracing_sched_wakeup_trace()
128 	data = ctx_trace->data[cpu];  in probe_sched_wakeup()
130 	if (likely(!atomic_read(&data->disabled)))  in probe_sched_wakeup()
143 		pr_info("wakeup trace: Couldn't activate tracepoint"  in tracing_sched_register()
144 			" probe to kernel_sched_wakeup\n");  in tracing_sched_register()
150 		pr_info("wakeup trace: Couldn't activate tracepoint"  in tracing_sched_register()
151 			" probe to kernel_sched_wakeup_new\n");  in tracing_sched_register()
157 		pr_info("sched trace: Couldn't activate tracepoint"  in tracing_sched_register()
158 			" probe to kernel_sched_switch\n");  in tracing_sched_register()
188 	if (!(--sched_ref))  in tracing_stop_sched_switch()
204  * tracing_start_sched_switch_record - start tracing context switches
223  * tracing_stop_sched_switch_record - start tracing context switches
230 	tracer_enabled--;  in tracing_stop_sched_switch_record()
238  * tracing_sched_switch_assign_trace - assign a trace array for ctx switch
239  * @tr: trace array pointer to assign
241  * Some tracers might want to record the context switches in their
243  * to use.