linux-kernel - [PATCH rcu 07/23] context_tracking: Rename context_tracking_enter/exit() to ct_user

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Message-Id: <20220620231029.3844583-7-paulmck@kernel.org>
Date:   Mon, 20 Jun 2022 16:10:13 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     rcu@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com,
        rostedt@...dmis.org, Frederic Weisbecker <frederic@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Neeraj Upadhyay <quic_neeraju@...cinc.com>,
        Uladzislau Rezki <uladzislau.rezki@...y.com>,
        Joel Fernandes <joel@...lfernandes.org>,
        Boqun Feng <boqun.feng@...il.com>,
        Nicolas Saenz Julienne <nsaenz@...nel.org>,
        Marcelo Tosatti <mtosatti@...hat.com>,
        Xiongfeng Wang <wangxiongfeng2@...wei.com>,
        Yu Liao <liaoyu15@...wei.com>, Phil Auld <pauld@...hat.com>,
        Paul Gortmaker <paul.gortmaker@...driver.com>,
        Alex Belits <abelits@...vell.com>,
        "Paul E . McKenney" <paulmck@...nel.org>
Subject: [PATCH rcu 07/23] context_tracking: Rename context_tracking_enter/exit() to ct_user_enter/exit()

From: Frederic Weisbecker <frederic@...nel.org>

context_tracking_enter() and context_tracking_exit() have confusing
names that don't explain the fact they are referring to user/guest state.

Use more self-explanatory names and shrink to the new context tracking
prefix instead.

Signed-off-by: Frederic Weisbecker <frederic@...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>
Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
---
 include/linux/context_tracking.h | 13 +++++++------
 kernel/context_tracking.c        | 12 ++++++------
 2 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h
index 69532cd18f72c..7a5f04ae1758f 100644
--- a/include/linux/context_tracking.h
+++ b/include/linux/context_tracking.h
@@ -17,21 +17,22 @@ extern void context_tracking_cpu_set(int cpu);
 extern void __ct_user_enter(enum ctx_state state);
 extern void __ct_user_exit(enum ctx_state state);
 
-extern void context_tracking_enter(enum ctx_state state);
-extern void context_tracking_exit(enum ctx_state state);
+extern void ct_user_enter(enum ctx_state state);
+extern void ct_user_exit(enum ctx_state state);
+
 extern void user_enter_callable(void);
 extern void user_exit_callable(void);
 
 static inline void user_enter(void)
 {
 	if (context_tracking_enabled())
-		context_tracking_enter(CONTEXT_USER);
+		ct_user_enter(CONTEXT_USER);
 
 }
 static inline void user_exit(void)
 {
 	if (context_tracking_enabled())
-		context_tracking_exit(CONTEXT_USER);
+		ct_user_exit(CONTEXT_USER);
 }
 
 /* Called with interrupts disabled.  */
@@ -57,7 +58,7 @@ static inline enum ctx_state exception_enter(void)
 
 	prev_ctx = this_cpu_read(context_tracking.state);
 	if (prev_ctx != CONTEXT_KERNEL)
-		context_tracking_exit(prev_ctx);
+		ct_user_exit(prev_ctx);
 
 	return prev_ctx;
 }
@@ -67,7 +68,7 @@ static inline void exception_exit(enum ctx_state prev_ctx)
 	if (!IS_ENABLED(CONFIG_HAVE_CONTEXT_TRACKING_OFFSTACK) &&
 	    context_tracking_enabled()) {
 		if (prev_ctx != CONTEXT_KERNEL)
-			context_tracking_enter(prev_ctx);
+			ct_user_enter(prev_ctx);
 	}
 }
 
diff --git a/kernel/context_tracking.c b/kernel/context_tracking.c
index 9d4a872ca92c4..87454e3515546 100644
--- a/kernel/context_tracking.c
+++ b/kernel/context_tracking.c
@@ -112,7 +112,7 @@ EXPORT_SYMBOL_GPL(__ct_user_enter);
  * or context_tracking_guest_enter(). It should be the arch entry code
  * responsibility to call into context tracking with IRQs disabled.
  */
-void context_tracking_enter(enum ctx_state state)
+void ct_user_enter(enum ctx_state state)
 {
 	unsigned long flags;
 
@@ -131,8 +131,8 @@ void context_tracking_enter(enum ctx_state state)
 	__ct_user_enter(state);
 	local_irq_restore(flags);
 }
-NOKPROBE_SYMBOL(context_tracking_enter);
-EXPORT_SYMBOL_GPL(context_tracking_enter);
+NOKPROBE_SYMBOL(ct_user_enter);
+EXPORT_SYMBOL_GPL(ct_user_enter);
 
 /**
  * user_enter_callable() - Unfortunate ASM callable version of user_enter() for
@@ -197,7 +197,7 @@ EXPORT_SYMBOL_GPL(__ct_user_exit);
  * or context_tracking_guest_exit(). It should be the arch entry code
  * responsibility to call into context tracking with IRQs disabled.
  */
-void context_tracking_exit(enum ctx_state state)
+void ct_user_exit(enum ctx_state state)
 {
 	unsigned long flags;
 
@@ -208,8 +208,8 @@ void context_tracking_exit(enum ctx_state state)
 	__ct_user_exit(state);
 	local_irq_restore(flags);
 }
-NOKPROBE_SYMBOL(context_tracking_exit);
-EXPORT_SYMBOL_GPL(context_tracking_exit);
+NOKPROBE_SYMBOL(ct_user_exit);
+EXPORT_SYMBOL_GPL(ct_user_exit);
 
 /**
  * user_exit_callable() - Unfortunate ASM callable version of user_exit() for
-- 
2.31.1.189.g2e36527f23