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| author | Peter Zijlstra <peterz@infradead.org> | 2008-12-16 08:07:03 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-25 13:10:21 +0100 |
| commit | 468a15bb4cc61694495cc5ed7ffca29e87c79b69 (patch) | |
| tree | 51274b853cc427666925f917203487a69d01c3d9 /kernel | |
| parent | 0ca59dd948a51c95d5a366d35f897bc5ef9df55d (diff) | |
| download | lwn-468a15bb4cc61694495cc5ed7ffca29e87c79b69.tar.gz lwn-468a15bb4cc61694495cc5ed7ffca29e87c79b69.zip | |
sched, trace: update trace_sched_wakeup()
Impact: extend the wakeup tracepoint with the info whether the wakeup was real
Add the information needed to distinguish 'real' wakeups from 'false'
wakeups.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched.c | 2 | ||||
| -rw-r--r-- | kernel/trace/trace_sched_switch.c | 2 | ||||
| -rw-r--r-- | kernel/trace/trace_sched_wakeup.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index ceda5799466e..dcb39bc88f6c 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -2324,7 +2324,7 @@ 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 add2c1fdae92..df175cb4564f 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 0067b49746c1..43586b689e31 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; |