From 213cc060797378059a28ebc5c539f3e9a80160bd Mon Sep 17 00:00:00 2001 From: Pekka J Enberg Date: Fri, 19 Dec 2008 12:08:39 +0200 Subject: ftrace: introduce tracing_reset_online_cpus() helper Impact: cleanup This patch factors out common code from multiple tracers into a tracing_reset_online_cpus() function and converts the tracers to use it. Signed-off-by: Pekka Enberg Signed-off-by: Ingo Molnar --- kernel/trace/trace_sched_switch.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) (limited to 'kernel/trace/trace_sched_switch.c') diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c index 781d72ef873c..add2c1fdae92 100644 --- a/kernel/trace/trace_sched_switch.c +++ b/kernel/trace/trace_sched_switch.c @@ -72,16 +72,6 @@ probe_sched_wakeup(struct rq *__rq, struct task_struct *wakee) local_irq_restore(flags); } -static void sched_switch_reset(struct trace_array *tr) -{ - int cpu; - - tr->time_start = ftrace_now(tr->cpu); - - for_each_online_cpu(cpu) - tracing_reset(tr, cpu); -} - static int tracing_sched_register(void) { int ret; @@ -197,7 +187,7 @@ void tracing_sched_switch_assign_trace(struct trace_array *tr) static void start_sched_trace(struct trace_array *tr) { - sched_switch_reset(tr); + tracing_reset_online_cpus(tr); tracing_start_sched_switch_record(); } @@ -221,7 +211,7 @@ static void sched_switch_trace_reset(struct trace_array *tr) static void sched_switch_trace_start(struct trace_array *tr) { - sched_switch_reset(tr); + tracing_reset_online_cpus(tr); tracing_start_sched_switch(); } -- cgit v1.2.3 From 468a15bb4cc61694495cc5ed7ffca29e87c79b69 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 16 Dec 2008 08:07:03 +0100 Subject: 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 Signed-off-by: Ingo Molnar --- kernel/trace/trace_sched_switch.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'kernel/trace/trace_sched_switch.c') 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; -- cgit v1.2.3