From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 97198C54FCB for ; Wed, 22 Apr 2020 13:13:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3B7162076C for ; Wed, 22 Apr 2020 13:13:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=efficios.com header.i=@efficios.com header.b="kPVI68HX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726504AbgDVNNV (ORCPT ); Wed, 22 Apr 2020 09:13:21 -0400 Received: from mail.efficios.com ([167.114.26.124]:44338 "EHLO mail.efficios.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725968AbgDVNNU (ORCPT ); Wed, 22 Apr 2020 09:13:20 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.efficios.com (Postfix) with ESMTP id 7D41424BBCE; Wed, 22 Apr 2020 09:13:19 -0400 (EDT) Received: from mail.efficios.com ([127.0.0.1]) by localhost (mail03.efficios.com [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id LivSnvv1xuAw; Wed, 22 Apr 2020 09:13:19 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mail.efficios.com (Postfix) with ESMTP id 2934E24BCB4; Wed, 22 Apr 2020 09:13:19 -0400 (EDT) DKIM-Filter: OpenDKIM Filter v2.10.3 mail.efficios.com 2934E24BCB4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=efficios.com; s=default; t=1587561199; bh=XxfwCStd65W3SUVeYq1AfAiyjAtX6BLtoIdBlLjGZM4=; h=Date:From:To:Message-ID:MIME-Version; b=kPVI68HXH+9CBE9fhZpJKo2/qo0O6pESqyfaUwVc7J0wy/nI4nOjcbrkY2ISX9Gja PZQ6NamnA+k+St4TA0IcppITqrESnC+fQnrgaQbIUkj7f+AjgQudGKf0JHIIazYS02 bRQnhcB2czeuJrklHyqquJFM3xcDovjW1ffeNyggCvgiD6MiRFSIKEnXA4XV0y/y5o MPzJtjiT3jsskcrx02pLUCzhWQI9LR+SUOgSGNIqcv4WhtH2VrkP85/JyBsypSPs6B aFIwgt8/4+XzCtD4f7jkz5JxvcLcWGnGR4ZJxu6Lp8tDgdLSA1OvkTju61TMdi/yjE ZFBkINZQt+5kA== X-Virus-Scanned: amavisd-new at efficios.com Received: from mail.efficios.com ([127.0.0.1]) by localhost (mail03.efficios.com [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id zJR-EsYqK08y; Wed, 22 Apr 2020 09:13:19 -0400 (EDT) Received: from mail03.efficios.com (mail03.efficios.com [167.114.26.124]) by mail.efficios.com (Postfix) with ESMTP id 1BAEA24BBCB; Wed, 22 Apr 2020 09:13:19 -0400 (EDT) Date: Wed, 22 Apr 2020 09:13:19 -0400 (EDT) From: Mathieu Desnoyers To: linux-kernel@vger.kernel.org, lttng-dev@lists.lttng.org, rp@svcs.cs.pdx.edu Cc: "Paul E. McKenney" , Stephen Hemminger , Alan Stern , Lai Jiangshan Message-ID: <1277451188.63391.1587561199034.JavaMail.zimbra@efficios.com> Subject: [RELEASE] Userspace RCU 0.12.1, 0.11.2, 0.10.3, 0.9.7 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [167.114.26.124] X-Mailer: Zimbra 8.8.15_GA_3918 (ZimbraWebClient - FF75 (Linux)/8.8.15_GA_3895) Thread-Index: FXK0zFflj44usWFd7MeHID9rQ7EAUg== Thread-Topic: Userspace RCU 0.12.1, 0.11.2, 0.10.3, 0.9.7 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, This is a release announcement for the liburcu project. Those releases are bugfix only releases within each of the currently supported branches: 0.12.1, 0.11.2, 0.10.3, 0.9.7. Note that the 0.9.7 and 0.10.3 releases mark the end of life of the stable-0.9 and stable-0.10 branches. Users should upgrade to 0.11.x or 0.12.x for an actively maintained liburcu. * Noteworthy in these releases One relevant fix included in all of those releases applies to tls-compat.h. It fixes use-cases where liburcu is compiled with a compiler detecting that _Thread_local should be used for TLS, but an application using tls-compat.h uses an older compiler which does not support _Thread_local. The 0.10.3 and 0.11.2 releases include a fix for a hang when using the RCU lock-free hash table with the signal-based urcu flavor. (urcu-signal) liburcu is a LGPLv2.1 userspace RCU (read-copy-update) library. This data synchronization library provides read-side access which scales linearly with the number of cores. It does so by allowing multiple copies of a given data structure to live at the same time, and by monitoring the data structure accesses to detect grace periods after which memory reclamation is possible. liburcu-cds provides efficient data structures based on RCU and lock-free algorithms. Those structures include hash tables, queues, stacks, and doubly-linked lists. Project website: http://liburcu.org Git repository: git://git.liburcu.org/urcu.git Enjoy! Mathieu -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com