From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mathieu Desnoyers Subject: [RELEASE] Userspace RCU 0.12.1, 0.11.2, 0.10.3, 0.9.7 Date: Wed, 22 Apr 2020 09:13:19 -0400 (EDT) Message-ID: <1277451188.63391.1587561199034.JavaMail.zimbra@efficios.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Sender: linux-kernel-owner@vger.kernel.org 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 List-Id: lttng-dev@lists.lttng.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