linux-kernel - [PATCH 06/20] context_tracking: Rename context_tracking_cpu_set() to ct_cpu_track

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Message-Id: <20220608144037.1765000-7-frederic@kernel.org>
Date:   Wed,  8 Jun 2022 16:40:23 +0200
From:   Frederic Weisbecker <frederic@...nel.org>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Frederic Weisbecker <frederic@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Phil Auld <pauld@...hat.com>,
        Alex Belits <abelits@...vell.com>,
        Nicolas Saenz Julienne <nsaenz@...nel.org>,
        Xiongfeng Wang <wangxiongfeng2@...wei.com>,
        Neeraj Upadhyay <quic_neeraju@...cinc.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Yu Liao <liaoyu15@...wei.com>,
        Boqun Feng <boqun.feng@...il.com>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Marcelo Tosatti <mtosatti@...hat.com>,
        Paul Gortmaker <paul.gortmaker@...driver.com>,
        Uladzislau Rezki <uladzislau.rezki@...y.com>,
        Joel Fernandes <joel@...lfernandes.org>
Subject: [PATCH 06/20] context_tracking: Rename context_tracking_cpu_set() to ct_cpu_track_user()

context_tracking_cpu_set() is called in order to tell a CPU to track
user/kernel transitions. Since context tracking is going to expand in
to also track transitions from/to idle/IRQ/NMIs, the scope
of this function name becomes too broad and needs to be made more
specific. Also shorten the prefix to align with the new namespace.

Signed-off-by: Frederic Weisbecker <frederic@...nel.org>
Cc: Paul E. McKenney <paulmck@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Neeraj Upadhyay <quic_neeraju@...cinc.com>
Cc: Uladzislau Rezki <uladzislau.rezki@...y.com>
Cc: Joel Fernandes <joel@...lfernandes.org>
Cc: Boqun Feng <boqun.feng@...il.com>
Cc: Nicolas Saenz Julienne <nsaenz@...nel.org>
Cc: Marcelo Tosatti <mtosatti@...hat.com>
Cc: Xiongfeng Wang <wangxiongfeng2@...wei.com>
Cc: Yu Liao<liaoyu15@...wei.com>
Cc: Phil Auld <pauld@...hat.com>
Cc: Paul Gortmaker<paul.gortmaker@...driver.com>
Cc: Alex Belits <abelits@...vell.com>
---
 include/linux/context_tracking.h | 2 +-
 kernel/context_tracking.c        | 4 ++--
 kernel/time/tick-sched.c         | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h
index 7a5f04ae1758..63259fece7c7 100644
--- a/include/linux/context_tracking.h
+++ b/include/linux/context_tracking.h
@@ -11,7 +11,7 @@
 
 
 #ifdef CONFIG_CONTEXT_TRACKING
-extern void context_tracking_cpu_set(int cpu);
+extern void ct_cpu_track_user(int cpu);
 
 /* Called with interrupts disabled.  */
 extern void __ct_user_enter(enum ctx_state state);
diff --git a/kernel/context_tracking.c b/kernel/context_tracking.c
index 3a264ac38a02..ccf18032e742 100644
--- a/kernel/context_tracking.c
+++ b/kernel/context_tracking.c
@@ -229,7 +229,7 @@ void user_exit_callable(void)
 }
 NOKPROBE_SYMBOL(user_exit_callable);
 
-void __init context_tracking_cpu_set(int cpu)
+void __init ct_cpu_track_user(int cpu)
 {
 	static __initdata bool initialized = false;
 
@@ -259,6 +259,6 @@ void __init context_tracking_init(void)
 	int cpu;
 
 	for_each_possible_cpu(cpu)
-		context_tracking_cpu_set(cpu);
+		ct_cpu_track_user(cpu);
 }
 #endif
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 2d76c91b85de..06709885c590 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -571,7 +571,7 @@ void __init tick_nohz_init(void)
 	}
 
 	for_each_cpu(cpu, tick_nohz_full_mask)
-		context_tracking_cpu_set(cpu);
+		ct_cpu_track_user(cpu);
 
 	ret = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN,
 					"kernel/nohz:predown", NULL,
-- 
2.25.1