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sched: Remove rq argument to the tracepoints 

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: * 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, 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( TP_STRUCT__entry(
__array( char, comm, TASK_COMM_LEN ) __array( char, comm, TASK_COMM_LEN )
@ -79,15 +76,12 @@ TRACE_EVENT(sched_wait_task,
/* /*
* Tracepoint for waking up a 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, 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( TP_STRUCT__entry(
__array( char, comm, TASK_COMM_LEN ) __array( char, comm, TASK_COMM_LEN )
@ -111,31 +105,25 @@ DECLARE_EVENT_CLASS(sched_wakeup_template,
); );
DEFINE_EVENT(sched_wakeup_template, sched_wakeup, DEFINE_EVENT(sched_wakeup_template, sched_wakeup,
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));
/* /*
* Tracepoint for waking up a new task: * 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, DEFINE_EVENT(sched_wakeup_template, sched_wakeup_new,
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));
/* /*
* Tracepoint for task switches, performed by the scheduler: * 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, TRACE_EVENT(sched_switch,
TP_PROTO(struct rq *rq, struct task_struct *prev, TP_PROTO(struct task_struct *prev,
struct task_struct *next), struct task_struct *next),
TP_ARGS(rq, prev, next), TP_ARGS(prev, next),
TP_STRUCT__entry( TP_STRUCT__entry(
__array( char, prev_comm, TASK_COMM_LEN ) __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. * just go back and repeat.
*/ */
rq = task_rq_lock(p, &flags); rq = task_rq_lock(p, &flags);
trace_sched_wait_task(rq, p); trace_sched_wait_task(p);
running = task_running(rq, p); running = task_running(rq, p);
on_rq = p->se.on_rq; on_rq = p->se.on_rq;
ncsw = 0; ncsw = 0;
@ -2439,7 +2439,7 @@ out_activate:
success = 1; success = 1;
out_running: out_running:
trace_sched_wakeup(rq, p, success); trace_sched_wakeup(p, success);
check_preempt_curr(rq, p, wake_flags); check_preempt_curr(rq, p, wake_flags);
p->state = TASK_RUNNING; 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); rq = task_rq_lock(p, &flags);
activate_task(rq, p, 0); 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); check_preempt_curr(rq, p, WF_FORK);
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
if (p->sched_class->task_woken) if (p->sched_class->task_woken)
@ -2833,7 +2833,7 @@ context_switch(struct rq *rq, struct task_struct *prev,
struct mm_struct *mm, *oldmm; struct mm_struct *mm, *oldmm;
prepare_task_switch(rq, prev, next); prepare_task_switch(rq, prev, next);
trace_sched_switch(rq, prev, next); trace_sched_switch(prev, next);
mm = next->mm; mm = next->mm;
oldmm = prev->active_mm; oldmm = prev->active_mm;
/* /*

3
kernel/trace/ftrace.c
View File

@ -3212,8 +3212,7 @@ free:
} }
static void static void
ftrace_graph_probe_sched_switch(struct rq *__rq, struct task_struct *prev, ftrace_graph_probe_sched_switch(struct task_struct *prev, struct task_struct *next)
struct task_struct *next)
{ {
unsigned long long timestamp; unsigned long long timestamp;
int index; 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 static void
probe_sched_switch(struct rq *__rq, struct task_struct *prev, probe_sched_switch(struct task_struct *prev, struct task_struct *next)
struct task_struct *next)
{ {
struct trace_array_cpu *data; struct trace_array_cpu *data;
unsigned long flags; unsigned long flags;
@ -109,7 +108,7 @@ tracing_sched_wakeup_trace(struct trace_array *tr,
} }
static void 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; struct trace_array_cpu *data;
unsigned long flags; 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 static void notrace
probe_wakeup_sched_switch(struct rq *rq, struct task_struct *prev, probe_wakeup_sched_switch(struct task_struct *prev, struct task_struct *next)
struct task_struct *next)
{ {
struct trace_array_cpu *data; struct trace_array_cpu *data;
cycle_t T0, T1, delta; cycle_t T0, T1, delta;
@ -200,7 +199,7 @@ static void wakeup_reset(struct trace_array *tr)
} }
static void 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; struct trace_array_cpu *data;
int cpu = smp_processor_id(); int cpu = smp_processor_id();