From patchwork Thu Dec 12 18:39:26 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: 13905816 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 52DEE218594; Thu, 12 Dec 2024 18:39:26 +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=1734028769; cv=none; b=jZbXw5EmS/UXZbWHZLEFLxEmHi5Kl5SDUfnbOldGCxM3mXCCkxbmYuey22kAYDdpNkyC9qr/+pRtBhDfcGiyi0krWnqqHI1l3+2i8RYEHhHcAW8OBtZD/KMuEP2aYOFst96lBWKiMzziehEeYTLoyVeB9SjqMEJHPu3XgT/eo6s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734028769; c=relaxed/simple; bh=m590/Q5h4u9oEARMO6LLrWrWq41qWEexj/rHoT8zjDg=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=d7hbfYP0il9Gi3+NUc1pOUxS1EaRSF4rIJdOGm9kxV9iBDGcytlCreoZsf+IOD/TQuK6T5qQg9VfCztKdZgTgs6eseGqmDaJpAfbUAcbMHBvwKlj+kMUjzVM1065NjKrjtrwlEO1NFgEDw2qd3XCR2BTVuPywQevtFuf5ZfqtoQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=iIEG7CcX; 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="iIEG7CcX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CE34FC4CECE; Thu, 12 Dec 2024 18:39:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1734028766; bh=m590/Q5h4u9oEARMO6LLrWrWq41qWEexj/rHoT8zjDg=; h=Date:From:To:Cc:Subject:Reply-To:From; b=iIEG7CcXGUOIA4D3R66C1Fm4w2GC4BgW6IbLCvTp2o8riX80onPJPogtPN00VZzcu ssA2avAwrRI8LMwyU3lCtC8jxAWyOkb0hNBhdpkUjfHnLUtdWI/LBnpBqEIYoTx+A6 vsBt6w7Nzk2O+w+RoECQ8VDY5ty2D9m9/D+chiI6dSecps7JPbea1E+/omiv3OnS/c CrTuDkv4KbqakzsRgzbVP5QYgUDW/m/VzdRfNG6KGTNtvIEbPchrGvpNX7pOxRxQbg EvRZMfAbjnEtCRJws6Qpiw1pCtJh6Lkooj3RoG0StxlfAhHTwXq4FVy+WlskIk+zeT 74jw1JqteDM6A== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id 6860BCE0EE4; Thu, 12 Dec 2024 10:39:26 -0800 (PST) Date: Thu, 12 Dec 2024 10:39:26 -0800 From: "Paul E. McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org Subject: [PATCH rcu 0/8] Miscellaneous fixes for v6.14 Message-ID: <928b8031-2bfe-4c90-9952-7d331e027ae3@paulmck-laptop> Reply-To: paulmck@kernel.org Precedence: bulk X-Mailing-List: rcu@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline Hello! This series contains miscellaneous fixes: 1. Report callbacks enqueued on offline CPU blind spot, courtesy of Frederic Weisbecker. 2. Make rcu_report_exp_cpu_mult() caller acquire lock. 3. Move rcu_report_exp_rdp() setting of ->cpu_no_qs.b.exp under lock. 4. Replace open-coded rcu_exp_need_qs() from rcu_exp_handler() with call. 5. Make preemptible rcu_exp_handler() check idempotency. 6. Add KCSAN exclusive-writer assertions for rdp->cpu_no_qs.b.exp. 7. Add lockdep_assert_irqs_disabled() to rcu_exp_need_qs(). 8. MAINTAINERS: Update RCU git tree. Thanx, Paul ------------------------------------------------------------------------ b/MAINTAINERS | 10 ++++---- b/kernel/rcu/tree.c | 3 ++ b/kernel/rcu/tree_exp.h | 20 ++++++++++------ b/kernel/rcu/tree_plugin.h | 1 kernel/rcu/tree_exp.h | 54 ++++++++++++++++++++++++++++----------------- 5 files changed, 56 insertions(+), 32 deletions(-)