From patchwork Wed Oct 16 16:18:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Paul E. McKenney" X-Patchwork-Id: 13838634 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 9EC5245008; Wed, 16 Oct 2024 16:18:52 +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=1729095532; cv=none; b=r0zixpxFQxFlR9sdxaC4mpQUA76mVzaBzobM6QSzXx9ojEMzFBpDO0YqHKstaf9W/Gryzgtzv7XdoSAC3nbN9fdMYhEFeuZHwMip6Zi9qASAWUh5LzTEfaZnZMzokWdZRiO4AWtwSweoAtJ4NxyjSD47eLRqwmV6LO+QxU9PzQE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729095532; c=relaxed/simple; bh=aBIvETqKl94KeNJUMmTeq/D8trRXd8B8NutvTcC+c/Y=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=PGM1v2teCBQysC35elDfCizW1YuHIyT3t6uDX7zxnR0JlnK/prGQub2cAy6KtuEXinoFhKLsBdo3MyKh/EIGDgReHKGBrfeqD+ud4pWg606EMIL/S9EZfsbXNfa32v0btDr5OVhFT9YbEDmbuTus/HUxLD+97Bf9ycgTMduukrg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rnhezzg/; 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="rnhezzg/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 704E7C4CEC5; Wed, 16 Oct 2024 16:18:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729095532; bh=aBIvETqKl94KeNJUMmTeq/D8trRXd8B8NutvTcC+c/Y=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:From; b=rnhezzg/yDnFSvVcTi+mFsfp1uwazV66KxR/QLGKzwcTO8+Xl5UuUhHXPf/k7TZdW XOX02FDLzoNE2EvOsg/4Cryw/qqPUHQjnO9fOQqE7digDrjthNmGL8JeUcy7N1suJC HyHH8QFfVvXUiyt1vzKa1PKO0R4AEBpLdo/jCgr6vOmzk73kl8gSOZH6QyPytHlgku 160W5K09id2DNFCz8FA6e4PcI3SuDD709b5EVFWpJOzWl3JpvK48F4ouSF5kudvbD7 iD1k1iZBwpXDsieBWKxs4nB3xYgfb5aPJ6ClzrA1jva+T9DnUFlZl9FA+gSKpaKt9T DRa5jQKdZGIOg== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id 1A6AACE0DCA; Wed, 16 Oct 2024 09:18:52 -0700 (PDT) Date: Wed, 16 Oct 2024 09:18:52 -0700 From: "Paul E. McKenney" To: frederic@kernel.org, rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org Subject: [PATCH v2 rcu 0/3] RCU CPU stall-warning changes for v6.13 Message-ID: <92193018-8624-495e-a685-320119f78db1@paulmck-laptop> Reply-To: paulmck@kernel.org References: Precedence: bulk X-Mailing-List: rcu@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Hello! This series contains RCU CPU stall-warning changes for v6.13: 1. Delete unused rcu_gp_might_be_stalled() function. 2. Stop stall warning from dumping stacks if grace period ends. 3. Finer-grained grace-period-end checks in rcu_dump_cpu_stacks(). Changes since v1: o Add data_race() to grace-period sequence-number access per feedback from Joel Fernandes. o Add Reviewed-by tags. Thanx, Paul ------------------------------------------------------------------------ b/include/linux/rcutiny.h | 1 - b/include/linux/rcutree.h | 1 - b/kernel/rcu/tree_stall.h | 30 ------------------------------ kernel/rcu/tree_stall.h | 35 ++++++++++++++++++++++------------- 4 files changed, 22 insertions(+), 45 deletions(-)