linux-kernel - [RELEASE] Userspace RCU 0.12.1, 0.11.2, 0.10.3, 0.9.7

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Message-ID: <1277451188.63391.1587561199034.JavaMail.zimbra@efficios.com>
Date:   Wed, 22 Apr 2020 09:13:19 -0400 (EDT)
From:   Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
To:     linux-kernel@...r.kernel.org, lttng-dev@...ts.lttng.org,
        rp@...s.cs.pdx.edu
Cc:     "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Lai Jiangshan <jiangshanlai@...il.com>
Subject: [RELEASE] Userspace RCU 0.12.1, 0.11.2, 0.10.3, 0.9.7

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