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ftrace: sched tracer fix

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Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Ingo Molnar 2008-05-12 21:20:51 +02:00 committed by Thomas Gleixner
parent 86387f7ee5
commit 8ac0fca4cc
3 changed files with 4 additions and 17 deletions
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6
include/linux/sched.h
View File

@ -2130,17 +2130,11 @@ ftrace_ctx_switch(struct task_struct *prev, struct task_struct *next)
#ifdef CONFIG_SCHED_TRACER
extern void
ftrace_wake_up_task(struct task_struct *wakee, struct task_struct *curr);
extern void
ftrace_wake_up_new_task(struct task_struct *wakee, struct task_struct *curr);
#else
static inline void
ftrace_wake_up_task(struct task_struct *wakee, struct task_struct *curr)
{
}
static inline void
ftrace_wake_up_new_task(struct task_struct *wakee, struct task_struct *curr)
{
}
#endif
extern long sched_setaffinity(pid_t pid, const cpumask_t *new_mask);

2
kernel/sched.c
View File

@ -2613,7 +2613,7 @@ void wake_up_new_task(struct task_struct *p, unsigned long clone_flags)
p->sched_class->task_new(rq, p);
inc_nr_running(rq);
}
ftrace_wake_up_new_task(p, rq->curr);
ftrace_wake_up_task(p, rq->curr);
check_preempt_curr(rq, p);
#ifdef CONFIG_SMP
if (p->sched_class->task_wake_up)

13
kernel/trace/trace_sched_wakeup.c
View File

@ -201,20 +201,13 @@ wakeup_check_start(struct trace_array *tr, struct task_struct *p,
atomic_dec(&tr->data[cpu]->disabled);
}
void
wakeup_sched_wakeup(struct task_struct *wakee, struct task_struct *curr)
void wakeup_sched_wakeup(struct task_struct *wakee, struct task_struct *curr)
{
if (likely(!tracer_enabled))
return;
wakeup_check_start(wakeup_trace, wakee, curr);
}
void
ftrace_wake_up_new_task(struct task_struct *wakee, struct task_struct *curr)
{
if (likely(!tracer_enabled))
return;
tracing_record_cmdline(curr);
tracing_record_cmdline(wakee);
wakeup_check_start(wakeup_trace, wakee, curr);
}