Re: [PATCH 4/6] kvm tools: Add rwlock wrapper

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* Ingo Molnar (mingo@xxxxxxx) wrote:
> > [ ... ]
> >
> > All that aside, one advantage of http://lttng.org/urcu is that it 
> > already exists, which allows prototyping to proceed immediately.  
> 
> it's offline right now:
> 
>  $ git clone git://git.lttng.org/urcu
>  Cloning into urcu...
>  fatal: The remote end hung up unexpectedly

This would be:

git clone git://git.lttng.org/userspace-rcu.git

I'll make sure a symlink for urcu -> userspace-rcu.git gets setup
shortly.

> One complication is that it's LGPL while tools/kvm/ is GPLv2. I guess 
> we could copy a suitable implementation into tools/kvm/rcu/?

That might make sense, yes. The intent of having liburcu LGPL is really
to give as much liberty for apps developers to link to it as they
have calling Linux kernel system calls. This peculiarness of the GPL
Linux is able to use to let non-GPL apps use it does not apply so
clearly to libraries, hence the use of LGPL for all my libs that support
application execution.

Thanks,

Mathieu

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