linux-kernel - [RELEASE] Userspace RCU 0.4.2

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Message-ID: <20100304200627.GA24725@Krystal>
Date:	Thu, 4 Mar 2010 15:06:27 -0500
From:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
To:	ltt-dev@...ts.casi.polymtl.ca, linux-kernel@...r.kernel.org,
	rp@...s.cs.pdx.edu
Cc:	pierre-marc.fournier@...ymtl.ca,
	Paolo Bonzini <pbonzini@...hat.com>,
	Jon Bernard <jbernard@...ian.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [RELEASE] Userspace RCU 0.4.2

Hello,

I just released liburcu 0.4.2. It includes patches from Paolo Bonzini which adds
generic uatomic ops support for architectures not explicitely supported by
liburcu. So, basically, we get ia64 and alpha support for free when the compiler
used is gcc 4.0-4.5. It comes with a huge cleanup and refactoring, removing
duplicated code.

There is also a small bugfix in urcu-bp, the User-Space Tracing (UST) version of
the library (this flavor does not require explicit reader thread
registration/unregistration). There was a garbage collection bug that did not
set the old per-thread counter to 0, which could cause an assertion to trigger
if the entry was re-used by a newly spawned thread.

Thanks,

Mathieu

-- 
Mathieu Desnoyers
Operating System Efficiency Consultant
EfficiOS Inc.
http://www.efficios.com
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