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 3A2AE374E71; Tue, 3 Mar 2026 23:59:06 +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=1772582346; cv=none; b=ge6G5OZsUVLBFhbUnGigdq4WCyajgXqudOMgahoKVWSXZQ7LEzKXfhRyaSVJwce3GSQqHHDiBhK9RE0MiMq6xfc/dhvWGv0bGiTQEH0pKh0M7gplkeJT7Wq/1ixcCY3ArgBctaUTcACv5XDHVZNiZiLDkxa1lcWqsFyGgRzE3/M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772582346; c=relaxed/simple; bh=29HujnpIDyQeuQ4aBMq1py7s65mTBAwLmw/6N6QEet0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=r0X6kyyufBhkWoU81wzkQR04muSCm9Vc4m/Yo38dNvk1eYoONiKZggC5phnTQILLj8UEz83bZuOW2LXWZU8+mUHFBu+iFtNATCN7J1wRQxLxfwzHOYdRJEGJnXcQdwPf8i5gKgGzZ+Om+2pOJtEDuEgP4K9Tho3f/eIY5RSbjLI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VCGUQUbk; 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="VCGUQUbk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0D58EC2BCAF; Tue, 3 Mar 2026 23:59:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772582346; bh=29HujnpIDyQeuQ4aBMq1py7s65mTBAwLmw/6N6QEet0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VCGUQUbkemkbjuzZGLyFsswUiwy25VkxRDYvLUdxv0lsmNYYs8Hx168rwXeqHerIl 1qXV8pVruwYiGEeHHEn+ngpITO58NJwH6HuPUs1gtVtvVuQg4uGy9BF07dPT3rHW5S n9Lpo80mFGTPIMKpD35SFcg7UP54FwNLuG/xAQpl7LORihe53mYqhhA1ttt+V36F4t /UrOWlBQbUll9y7Y85AJGMvzaWgRAxE0iHMIkpMOIPiOxhXp+OKiRz0SMds5kiwhUD 7aWLKDPQo/qAM8kaigQViw0D1tIpJxG+xlrRt1EZ9Cd5FGOXwSSn0JaLP0cRp+OWVj OR3eoTGsLV2Tg== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id A5704CE0ED1; Tue, 3 Mar 2026 15:59:05 -0800 (PST) From: "Paul E. McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org, "Paul E. McKenney" Subject: [PATCH 3/4] refscale: Update due to x86 not supporting none/voluntary preemption Date: Tue, 3 Mar 2026 15:59:02 -0800 Message-Id: <20260303235903.1967409-3-paulmck@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <2011d452-3c72-432a-af77-810238e80e6a@paulmck-laptop> References: <2011d452-3c72-432a-af77-810238e80e6a@paulmck-laptop> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit As of v7.0-rc1, architectures that support preemption, including x86 and arm64, no longer support CONFIG_PREEMPT_NONE or CONFIG_PREEMPT_VOLUNTARY. Attempting to build kernels with these two Kconfig options results in .config errors. This commit therefore switches such refscale scenarios to CONFIG_PREEMPT_LAZY. Signed-off-by: Paul E. McKenney --- tools/testing/selftests/rcutorture/configs/refscale/NOPREEMPT | 3 ++- tools/testing/selftests/rcutorture/configs/refscale/TINY | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/rcutorture/configs/refscale/NOPREEMPT b/tools/testing/selftests/rcutorture/configs/refscale/NOPREEMPT index 67f9d2998afd3..1f215e17cbae2 100644 --- a/tools/testing/selftests/rcutorture/configs/refscale/NOPREEMPT +++ b/tools/testing/selftests/rcutorture/configs/refscale/NOPREEMPT @@ -1,5 +1,6 @@ CONFIG_SMP=y -CONFIG_PREEMPT_NONE=y +CONFIG_PREEMPT_LAZY=y +CONFIG_PREEMPT_NONE=n CONFIG_PREEMPT_VOLUNTARY=n CONFIG_PREEMPT=n CONFIG_PREEMPT_DYNAMIC=n diff --git a/tools/testing/selftests/rcutorture/configs/refscale/TINY b/tools/testing/selftests/rcutorture/configs/refscale/TINY index 759343980b80d..9a11b578ff344 100644 --- a/tools/testing/selftests/rcutorture/configs/refscale/TINY +++ b/tools/testing/selftests/rcutorture/configs/refscale/TINY @@ -1,5 +1,6 @@ CONFIG_SMP=n -CONFIG_PREEMPT_NONE=y +CONFIG_PREEMPT_LAZY=y +CONFIG_PREEMPT_NONE=n CONFIG_PREEMPT_VOLUNTARY=n CONFIG_PREEMPT=n CONFIG_PREEMPT_DYNAMIC=n -- 2.40.1