From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: [RELEASE] Userspace RCU 0.7.6 Date: Thu, 10 Jan 2013 08:32:47 -0800 Message-ID: <20130110083247.591ad0ba@nehalam.linuxnetplumber.net> References: <20130109184616.GA14968@Krystal> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20130109184616.GA14968@Krystal> Sender: linux-kernel-owner@vger.kernel.org To: Mathieu Desnoyers Cc: linux-kernel@vger.kernel.org, lttng-dev@lists.lttng.org, rp@svcs.cs.pdx.edu, "Paul E. McKenney" , Lai Jiangshan , Alan Stern List-Id: lttng-dev@lists.lttng.org On Wed, 9 Jan 2013 13:46:17 -0500 Mathieu Desnoyers wrote: > 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 multiples > 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. > > This is a bugfix release, mainly fixing handling of processes using > call_rcu, then fork() without following exec(), and then continuing use > of synchronize_rcu() or call_rcu() in the child process. A hang in > synchronize_rcu() in the child could occur, which is fixed by this > release. > > Changelog: > 2013-01-09 Userspace RCU 0.7.6 > * Discourage use of pthread_atfork() for call_rcu handlers > * Fix call_rcu fork handling > * test: fork handling > * Fix TLS detection: test with linker, add --disable-compiler-tls > * Cleanup: cast pthread_self() return value to unsigned long > * Fallback mechanism not working on platform where TLS is unsupported > > Project website: http://lttng.org/urcu > Download link: http://lttng.org/files/urcu/ > Why is the git repository still at 0.7.4 and there is no tag for 0.7.6? Am I looking at the right place? $ git remote -v origin git://git.lttng.org/userspace-rcu.git (fetch)