Re: sched: trace: update trace_sched_wakeup()
- From: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxx>
- Date: Tue, 16 Dec 2008 10:47:48 -0500
* Peter Zijlstra (peterz@xxxxxxxxxxxxx) wrote:
On Tue, 2008-12-16 at 08:07 +0100, Peter Zijlstra wrote:
Add the information needed to distinguish 'real' wakeups from 'false'
wakeups.
I don't seem to be doing so well this morning...
Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Thanks Dhaval!
Applied a modified version into the 2.6.27.9 LTTng tree. Thanks!
(remembering that I should really move to 2.6.28-rc!)
Mathieu
---
include/trace/sched.h | 4 ++--
kernel/sched.c | 2 +-
kernel/trace/trace_sched_switch.c | 2 +-
kernel/trace/trace_sched_wakeup.c | 2 +-
4 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/trace/sched.h b/include/trace/sched.h
index 9b2854a..a0861d2 100644
--- a/include/trace/sched.h
+++ b/include/trace/sched.h
@@ -17,8 +17,8 @@ DECLARE_TRACE(sched_wait_task,
TPARGS(rq, p));
DECLARE_TRACE(sched_wakeup,
- TPPROTO(struct rq *rq, struct task_struct *p),
- TPARGS(rq, p));
+ TPPROTO(struct rq *rq, struct task_struct *p, int success),
+ TPARGS(rq, p, success));
DECLARE_TRACE(sched_wakeup_new,
TPPROTO(struct rq *rq, struct task_struct *p),
diff --git a/kernel/sched.c b/kernel/sched.c
index 0eff15b..953ded9 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2329,7 +2329,7 @@ out_activate:
success = 1;
out_running:
- trace_sched_wakeup(rq, p);
+ trace_sched_wakeup(rq, p, success);
check_preempt_curr(rq, p, sync);
p->state = TASK_RUNNING;
diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c
index 8633905..d4db564 100644
--- a/kernel/trace/trace_sched_switch.c
+++ b/kernel/trace/trace_sched_switch.c
@@ -49,7 +49,7 @@ probe_sched_switch(struct rq *__rq, struct task_struct *prev,
}
static void
-probe_sched_wakeup(struct rq *__rq, struct task_struct *wakee)
+probe_sched_wakeup(struct rq *__rq, struct task_struct *wakee, int success)
{
struct trace_array_cpu *data;
unsigned long flags;
diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index 0067b49..43586b6 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -211,7 +211,7 @@ static void wakeup_reset(struct trace_array *tr)
}
static void
-probe_wakeup(struct rq *rq, struct task_struct *p)
+probe_wakeup(struct rq *rq, struct task_struct *p, int success)
{
int cpu = smp_processor_id();
unsigned long flags;
--
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--
Mathieu Desnoyers
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