linux-kernel - [PATCH 12/48] arch: Select new NEED_TASKS

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Message-Id: <20240507093530.3043-13-urezki@gmail.com>
Date: Tue,  7 May 2024 11:34:54 +0200
From: "Uladzislau Rezki (Sony)" <urezki@...il.com>
To: "Paul E . McKenney" <paulmck@...nel.org>
Cc: RCU <rcu@...r.kernel.org>,
	Neeraj upadhyay <Neeraj.Upadhyay@....com>,
	Boqun Feng <boqun.feng@...il.com>,
	Hillf Danton <hdanton@...a.com>,
	Joel Fernandes <joel@...lfernandes.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Uladzislau Rezki <urezki@...il.com>,
	Oleksiy Avramchenko <oleksiy.avramchenko@...y.com>,
	Frederic Weisbecker <frederic@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Heiko Carstens <hca@...ux.ibm.com>,
	Arnd Bergmann <arnd@...db.de>,
	Douglas Anderson <dianders@...omium.org>,
	Ankur Arora <ankur.a.arora@...cle.com>,
	Mark Rutland <mark.rutland@....com>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: [PATCH 12/48] arch: Select new NEED_TASKS_RCU Kconfig option

From: "Paul E. McKenney" <paulmck@...nel.org>

Currently, if a Kconfig option depends on TASKS_RCU, it conditionally does
"select TASKS_RCU if PREEMPTION".  This works, but requires any change in
this enablement logic to be replicated across all such "select" clauses.
A new NEED_TASKS_RCU Kconfig option has been created to allow this
enablement logic to be in one place in kernel/rcu/Kconfig.

Therefore, select the new NEED_TASKS_RCU Kconfig option instead of the
old TASKS_RCU option.

Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Heiko Carstens <hca@...ux.ibm.com>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Douglas Anderson <dianders@...omium.org>
Cc: Ankur Arora <ankur.a.arora@...cle.com>
Acked-by: Mark Rutland <mark.rutland@....com>
Reviewed-by: Steven Rostedt (Google) <rostedt@...dmis.org>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@...il.com>
---
 arch/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index 9f066785bb71..ae4a4f37bbf0 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -55,7 +55,7 @@ config KPROBES
 	depends on MODULES
 	depends on HAVE_KPROBES
 	select KALLSYMS
-	select TASKS_RCU if PREEMPTION
+	select NEED_TASKS_RCU
 	help
 	  Kprobes allows you to trap at almost any kernel address and
 	  execute a callback function.  register_kprobe() establishes
@@ -104,7 +104,7 @@ config STATIC_CALL_SELFTEST
 config OPTPROBES
 	def_bool y
 	depends on KPROBES && HAVE_OPTPROBES
-	select TASKS_RCU if PREEMPTION
+	select NEED_TASKS_RCU
 
 config KPROBES_ON_FTRACE
 	def_bool y
-- 
2.39.2