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sched: Remove rq argument to the tracepoints

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struct rq isn't visible outside of sched.o so its near useless to
expose the pointer, also there are no users of it, so remove it.

Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1272997616.1642.207.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra 2010-05-04 20:36:56 +02:00 committed by Ingo Molnar
parent 48652ced15
commit 27a9da6538
5 changed files with 19 additions and 34 deletions
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32
include/trace/events/sched.h
View File

@ -51,15 +51,12 @@ TRACE_EVENT(sched_kthread_stop_ret,
/*
* Tracepoint for waiting on task to unschedule:
*
* (NOTE: the 'rq' argument is not used by generic trace events,
* but used by the latency tracer plugin. )
*/
TRACE_EVENT(sched_wait_task,
TP_PROTO(struct rq *rq, struct task_struct *p),
TP_PROTO(struct task_struct *p),
TP_ARGS(rq, p),
TP_ARGS(p),
TP_STRUCT__entry(
__array( char, comm, TASK_COMM_LEN )
@ -79,15 +76,12 @@ TRACE_EVENT(sched_wait_task,
/*
* Tracepoint for waking up a task:
*
* (NOTE: the 'rq' argument is not used by generic trace events,
* but used by the latency tracer plugin. )
*/
DECLARE_EVENT_CLASS(sched_wakeup_template,
TP_PROTO(struct rq *rq, struct task_struct *p, int success),
TP_PROTO(struct task_struct *p, int success),
TP_ARGS(rq, p, success),
TP_ARGS(p, success),
TP_STRUCT__entry(
__array( char, comm, TASK_COMM_LEN )
@ -111,31 +105,25 @@ DECLARE_EVENT_CLASS(sched_wakeup_template,
);
DEFINE_EVENT(sched_wakeup_template, sched_wakeup,
TP_PROTO(struct rq *rq, struct task_struct *p, int success),
TP_ARGS(rq, p, success));
TP_PROTO(struct task_struct *p, int success),
TP_ARGS(p, success));
/*
* Tracepoint for waking up a new task:
*
* (NOTE: the 'rq' argument is not used by generic trace events,
* but used by the latency tracer plugin. )
*/
DEFINE_EVENT(sched_wakeup_template, sched_wakeup_new,
TP_PROTO(struct rq *rq, struct task_struct *p, int success),
TP_ARGS(rq, p, success));
TP_PROTO(struct task_struct *p, int success),
TP_ARGS(p, success));
/*
* Tracepoint for task switches, performed by the scheduler:
*
* (NOTE: the 'rq' argument is not used by generic trace events,
* but used by the latency tracer plugin. )
*/
TRACE_EVENT(sched_switch,
TP_PROTO(struct rq *rq, struct task_struct *prev,
TP_PROTO(struct task_struct *prev,
struct task_struct *next),
TP_ARGS(rq, prev, next),
TP_ARGS(prev, next),
TP_STRUCT__entry(
__array( char, prev_comm, TASK_COMM_LEN )

8
kernel/sched.c
View File

@ -2168,7 +2168,7 @@ unsigned long wait_task_inactive(struct task_struct *p, long match_state)
* just go back and repeat.
*/
rq = task_rq_lock(p, &flags);
trace_sched_wait_task(rq, p);
trace_sched_wait_task(p);
running = task_running(rq, p);
on_rq = p->se.on_rq;
ncsw = 0;
@ -2439,7 +2439,7 @@ out_activate:
success = 1;
out_running:
trace_sched_wakeup(rq, p, success);
trace_sched_wakeup(p, success);
check_preempt_curr(rq, p, wake_flags);
p->state = TASK_RUNNING;
@ -2613,7 +2613,7 @@ void wake_up_new_task(struct task_struct *p, unsigned long clone_flags)
rq = task_rq_lock(p, &flags);
activate_task(rq, p, 0);
trace_sched_wakeup_new(rq, p, 1);
trace_sched_wakeup_new(p, 1);
check_preempt_curr(rq, p, WF_FORK);
#ifdef CONFIG_SMP
if (p->sched_class->task_woken)
@ -2833,7 +2833,7 @@ context_switch(struct rq *rq, struct task_struct *prev,
struct mm_struct *mm, *oldmm;
prepare_task_switch(rq, prev, next);
trace_sched_switch(rq, prev, next);
trace_sched_switch(prev, next);
mm = next->mm;
oldmm = prev->active_mm;
/*

3
kernel/trace/ftrace.c
View File

@ -3212,8 +3212,7 @@ free:
}
static void
ftrace_graph_probe_sched_switch(struct rq *__rq, struct task_struct *prev,
struct task_struct *next)
ftrace_graph_probe_sched_switch(struct task_struct *prev, struct task_struct *next)
{
unsigned long long timestamp;
int index;

5
kernel/trace/trace_sched_switch.c
View File

@ -50,8 +50,7 @@ tracing_sched_switch_trace(struct trace_array *tr,
}
static void
probe_sched_switch(struct rq *__rq, struct task_struct *prev,
struct task_struct *next)
probe_sched_switch(struct task_struct *prev, struct task_struct *next)
{
struct trace_array_cpu *data;
unsigned long flags;
@ -109,7 +108,7 @@ tracing_sched_wakeup_trace(struct trace_array *tr,
}
static void
probe_sched_wakeup(struct rq *__rq, struct task_struct *wakee, int success)
probe_sched_wakeup(struct task_struct *wakee, int success)
{
struct trace_array_cpu *data;
unsigned long flags;

5
kernel/trace/trace_sched_wakeup.c
View File

@ -107,8 +107,7 @@ static void probe_wakeup_migrate_task(struct task_struct *task, int cpu)
}
static void notrace
probe_wakeup_sched_switch(struct rq *rq, struct task_struct *prev,
struct task_struct *next)
probe_wakeup_sched_switch(struct task_struct *prev, struct task_struct *next)
{
struct trace_array_cpu *data;
cycle_t T0, T1, delta;
@ -200,7 +199,7 @@ static void wakeup_reset(struct trace_array *tr)
}
static void
probe_wakeup(struct rq *rq, struct task_struct *p, int success)
probe_wakeup(struct task_struct *p, int success)
{
struct trace_array_cpu *data;
int cpu = smp_processor_id();