From 8ac0fca4ccb355ce50471d7aa3f10f5900b28b95 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Mon, 12 May 2008 21:20:51 +0200
Subject: [PATCH] ftrace: sched tracer fix
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/sched.h | 6 ------
kernel/sched.c | 2 +-
kernel/trace/trace_sched_wakeup.c | 13 +++----------
3 files changed, 4 insertions(+), 17 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 6e26f1fdbfe2..05744f9cb096 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -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);
diff --git a/kernel/sched.c b/kernel/sched.c
index 328494e28df2..53ab1174664f 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -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)
diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index 87fa7b253b57..2a012423f9d0 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -201,20 +201,13 @@ out:
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);
}
--
GitLab