From adcc3bfa8806761ac21aa271f78454113ec6936e Mon Sep 17 00:00:00 2001 From: Gabriele Monaco Date: Mon, 28 Jul 2025 15:50:18 +0200 Subject: sched: Adapt sched tracepoints for RV task model Add the following tracepoint: * sched_set_need_resched(tsk, cpu, tif) Called when a task is set the need resched [lazy] flag Remove the unused ip parameter from sched_entry and sched_exit and alter sched_entry to have a value of preempt consistent with the one used in sched_switch. Also adapt all monitors using sched_{entry,exit} to avoid breaking build. These tracepoints are useful to describe the Linux task model and are adapted from the patches by Daniel Bristot de Oliveira (https://bristot.me/linux-task-model/). Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Masami Hiramatsu Cc: Nam Cao Cc: Tomas Glozar Cc: Juri Lelli Cc: Clark Williams Cc: John Kacur Link: https://lore.kernel.org/20250728135022.255578-7-gmonaco@redhat.com Signed-off-by: Gabriele Monaco Signed-off-by: Steven Rostedt (Google) --- include/trace/events/sched.h | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'include/trace') diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index 4e6b2910cec3..c08893bde255 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -882,18 +882,22 @@ DECLARE_TRACE(sched_compute_energy, TP_ARGS(p, dst_cpu, energy, max_util, busy_time)); DECLARE_TRACE(sched_entry, - TP_PROTO(bool preempt, unsigned long ip), - TP_ARGS(preempt, ip)); + TP_PROTO(bool preempt), + TP_ARGS(preempt)); DECLARE_TRACE(sched_exit, - TP_PROTO(bool is_switch, unsigned long ip), - TP_ARGS(is_switch, ip)); + TP_PROTO(bool is_switch), + TP_ARGS(is_switch)); DECLARE_TRACE_CONDITION(sched_set_state, TP_PROTO(struct task_struct *tsk, int state), TP_ARGS(tsk, state), TP_CONDITION(!!(tsk->__state) != !!state)); +DECLARE_TRACE(sched_set_need_resched, + TP_PROTO(struct task_struct *tsk, int cpu, int tif), + TP_ARGS(tsk, cpu, tif)); + #endif /* _TRACE_SCHED_H */ /* This part must be outside protection */ -- cgit v1.2.3