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ftrace: sched tracer fix 

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 #ifdef CONFIG_SCHED_TRACER
extern void extern void
ftrace_wake_up_task(struct task_struct *wakee, struct task_struct *curr); 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 #else
static inline void static inline void
ftrace_wake_up_task(struct task_struct *wakee, struct task_struct *curr) 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 #endif
extern long sched_setaffinity(pid_t pid, const cpumask_t *new_mask); 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); p->sched_class->task_new(rq, p);
inc_nr_running(rq); inc_nr_running(rq);
} }
ftrace_wake_up_new_task(p, rq->curr); ftrace_wake_up_task(p, rq->curr);
check_preempt_curr(rq, p); check_preempt_curr(rq, p);
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
if (p->sched_class->task_wake_up) if (p->sched_class->task_wake_up)

13
kernel/trace/trace_sched_wakeup.c
View File

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