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authorFrederic Weisbecker <fweisbec@gmail.com>2009-07-29 18:00:29 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2009-08-06 07:28:06 +0200
commit82e04af498a85ba425efe77580b7ba08234411df (patch)
tree3683fb5e68cd96b518eb72d76b608205613feb24 /kernel/trace/trace_sched_switch.c
parentc0a0d0d3f65284c71115a9bb1ed801ee33eeb552 (diff)
tracing: Move sched event insertion helpers in the sched switch tracer file
The sched events helpers which insert the sched switch and wakeup events into the ring buffer currently reside in trace.c But this file is quite overloaded and the right place for these helpers is in the sched switch tracer file. Then move them to trace_functions.c Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_sched_switch.c')
-rw-r--r--kernel/trace/trace_sched_switch.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c
index a98106dd979c..e1285d7b5488 100644
--- a/kernel/trace/trace_sched_switch.c
+++ b/kernel/trace/trace_sched_switch.c
@@ -20,6 +20,34 @@ static int sched_ref;
static DEFINE_MUTEX(sched_register_mutex);
static int sched_stopped;
+
+void
+tracing_sched_switch_trace(struct trace_array *tr,
+ struct task_struct *prev,
+ struct task_struct *next,
+ unsigned long flags, int pc)
+{
+ struct ftrace_event_call *call = &event_context_switch;
+ struct ring_buffer_event *event;
+ struct ctx_switch_entry *entry;
+
+ event = trace_buffer_lock_reserve(tr, TRACE_CTX,
+ sizeof(*entry), flags, pc);
+ if (!event)
+ return;
+ entry = ring_buffer_event_data(event);
+ entry->prev_pid = prev->pid;
+ entry->prev_prio = prev->prio;
+ entry->prev_state = prev->state;
+ entry->next_pid = next->pid;
+ entry->next_prio = next->prio;
+ entry->next_state = next->state;
+ entry->next_cpu = task_cpu(next);
+
+ if (!filter_check_discard(call, entry, tr->buffer, event))
+ trace_buffer_unlock_commit(tr, event, flags, pc);
+}
+
static void
probe_sched_switch(struct rq *__rq, struct task_struct *prev,
struct task_struct *next)
@@ -49,6 +77,35 @@ probe_sched_switch(struct rq *__rq, struct task_struct *prev,
local_irq_restore(flags);
}
+void
+tracing_sched_wakeup_trace(struct trace_array *tr,
+ struct task_struct *wakee,
+ struct task_struct *curr,
+ unsigned long flags, int pc)
+{
+ struct ftrace_event_call *call = &event_wakeup;
+ struct ring_buffer_event *event;
+ struct ctx_switch_entry *entry;
+
+ event = trace_buffer_lock_reserve(tr, TRACE_WAKE,
+ sizeof(*entry), flags, pc);
+ if (!event)
+ return;
+ entry = ring_buffer_event_data(event);
+ entry->prev_pid = curr->pid;
+ entry->prev_prio = curr->prio;
+ entry->prev_state = curr->state;
+ entry->next_pid = wakee->pid;
+ entry->next_prio = wakee->prio;
+ entry->next_state = wakee->state;
+ entry->next_cpu = task_cpu(wakee);
+
+ if (!filter_check_discard(call, entry, tr->buffer, event))
+ ring_buffer_unlock_commit(tr->buffer, event);
+ ftrace_trace_stack(tr, flags, 6, pc);
+ ftrace_trace_userstack(tr, flags, pc);
+}
+
static void
probe_sched_wakeup(struct rq *__rq, struct task_struct *wakee, int success)
{