[ltt-dev] Userspace RCU 0.2.3

Paul E. McKenney paulmck at linux.vnet.ibm.com
Wed Oct 14 20:02:25 EDT 2009

On Wed, Oct 14, 2009 at 06:36:57PM -0400, Mathieu Desnoyers wrote:
> Hi,
> I just released lib urcu 0.2.3, which is now using autotools. I also
> integrated automatic architecture detection for old 386 which lack
> cmpxchg (using a fall-back if necessary). I also use a lock; addl
> instead of mfence on x86-32 to support a larger variety of older Intel
> CPUs.


Is there anyone on these lists other than me who has actually used an
SMP 80386-based system?

Either way, much appreciated for old time's sake.  The things we used
to do to avoid the need for cmpxchg!  ;-)

							Thanx, Paul

> The build system detects if NR_futex is available in the system
> headers. It falls back on a more portable alternative if they are not
> available.
> There are also new configuration modes to ./configure for UP-only
> systems.
> As always, the tarballs are available at http://www.lttng.org/urcu
> Mathieu
> -- 
> Mathieu Desnoyers
> OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

More information about the lttng-dev mailing list