[PATCH V7 9/9] trace/osnoise: Remove PREEMPT_RT ifdefs from inside functions

From: Daniel Bristot de Oliveira
Date: Thu Oct 28 2021 - 17:31:54 EST


Remove CONFIG_PREEMPT_RT from inside functions, avoiding
compilation problems in the future.

Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Tom Zanussi <zanussi@xxxxxxxxxx>
Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Juri Lelli <juri.lelli@xxxxxxxxxx>
Cc: Clark Williams <williams@xxxxxxxxxx>
Cc: John Kacur <jkacur@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Cc: Daniel Bristot de Oliveira <bristot@xxxxxxxxxx>
Cc: linux-rt-users@xxxxxxxxxxxxxxx
Cc: linux-trace-devel@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Suggested-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
Signed-off-by: Daniel Bristot de Oliveira <bristot@xxxxxxxxxx>
---
kernel/trace/trace_osnoise.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/kernel/trace/trace_osnoise.c b/kernel/trace/trace_osnoise.c
index eaa6396e3262..e6e3e41bd8a3 100644
--- a/kernel/trace/trace_osnoise.c
+++ b/kernel/trace/trace_osnoise.c
@@ -1505,9 +1505,11 @@ static enum hrtimer_restart timerlat_irq(struct hrtimer *timer)
* running, the thread needs to receive the softirq delta_start. The
* reason being is that the softirq will be the last to be unfolded,
* resseting the thread delay to zero.
+ *
+ * The PREEMPT_RT is a special case, though. As softirqs run as threads
+ * on RT, moving the thread is enough.
*/
-#ifndef CONFIG_PREEMPT_RT
- if (osn_var->softirq.delta_start) {
+ if (!IS_ENABLED(CONFIG_PREEMPT_RT) && osn_var->softirq.delta_start) {
copy_int_safe_time(osn_var, &osn_var->thread.delta_start,
&osn_var->softirq.delta_start);

@@ -1517,13 +1519,6 @@ static enum hrtimer_restart timerlat_irq(struct hrtimer *timer)
copy_int_safe_time(osn_var, &osn_var->thread.delta_start,
&osn_var->irq.delta_start);
}
-#else /* CONFIG_PREEMPT_RT */
- /*
- * The sofirqs run as threads on RT, so there is not need
- * to keep track of it.
- */
- copy_int_safe_time(osn_var, &osn_var->thread.delta_start, &osn_var->irq.delta_start);
-#endif /* CONFIG_PREEMPT_RT */

/*
* Compute the current time with the expected time.
--
2.31.1