From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 164E02AE93 for ; Wed, 13 Nov 2024 14:50:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731509438; cv=none; b=WBq6FBllvfl3jjPFbindDskui2UGxo3OpaHgmTzO6CrB/ROhPOanGcSerh83H9uYn6+Lp6/397j9iSgoB6OBq+4QWTnFcvyBkOaKBsAI3sYu9vOSnyCyVC4RFgFoJ29urTm982fxKk5dKvxQe2mjR7/ztZNnR9+a0iYhXmSN0NY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731509438; c=relaxed/simple; bh=X8mFCQYnvJSNUc4OPD3wmYeYdZokj4EvkEqhXAx/ILc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=IkVuUYMAEEpzKBkrflpq9SwVXNiXt7oCske9KMK8WwSrorhjPG/Fi1JlWzsKafUV7J/rA48yZfqJe76ztL7RFv8BlFdNj/m3tRdfbuk3k8izWbvkKhOywEqe3WVRbBxIdlQQRXNqDQJH6Py2h9r9K+0KrwY6SR+JvhBIkKl0rUI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=u1BF256d; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="u1BF256d" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2B9A5C4CEC3; Wed, 13 Nov 2024 14:50:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731509436; bh=X8mFCQYnvJSNUc4OPD3wmYeYdZokj4EvkEqhXAx/ILc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=u1BF256dqBCOfPSJxtWXwsWYkq9pOmz9p7YArJwkjYw3oYspvTu0nsQEZuMSxQI3A COLTzkzN6fnH5qxO6XOEnlGHGkOKFZM8goMlIY0yYV60X8X+5qv4bFQbkGzuydawup QcpIzFAC90rq5N1KjbxBZUxkmHr/ElNHSDekUPbVaRyegzIwG9IlP8aW4OV/2NEK0P 5sv5ycb7mUZHVjrnmKFThzmAfOeMCOVSnz/KRCQom6x9Tkcxkn7C1KIHeoxYfPH+vf 9G8cxO25dQ/TxQzTWYexRl5k4RtCP7MeOXBCtE1CfgERoACOJC60rlWHq/E5KVhvC1 jSe1EUEStWMGA== Date: Wed, 13 Nov 2024 15:50:33 +0100 From: Frederic Weisbecker To: Ankur Arora Cc: linux-kernel@vger.kernel.org, peterz@infradead.org, tglx@linutronix.de, paulmck@kernel.org, mingo@kernel.org, bigeasy@linutronix.de, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, efault@gmx.de, sshegde@linux.ibm.com, boris.ostrovsky@oracle.com Subject: Re: [PATCH v2 1/6] rcu: fix header guard for rcu_all_qs() Message-ID: References: <20241106201758.428310-1-ankur.a.arora@oracle.com> <20241106201758.428310-2-ankur.a.arora@oracle.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20241106201758.428310-2-ankur.a.arora@oracle.com> Le Wed, Nov 06, 2024 at 12:17:53PM -0800, Ankur Arora a écrit : > rcu_all_qs() is defined for !CONFIG_PREEMPT_RCU but the declaration > is conditioned on CONFIG_PREEMPTION. > > With CONFIG_PREEMPT_LAZY, CONFIG_PREEMPTION=y does not imply > CONFIG_PREEMPT_RCU=y. > > Decouple the two. > > Cc: Paul E. McKenney > Signed-off-by: Ankur Arora Reviewed-by: Frederic Weisbecker