[lttng-dev] [RELEASE] Userspace RCU 0.7.3

[Mathieu Desnoyers]

* Gerhard Mack (gmack at innerfire.net) wrote:
> 
> Just a heads up, I had to add the following to get it working with code 
> compiled with the gcc flag "-std=c99"
> 
> #ifndef asm
> #define asm  __asm
> #endif 

Normally, in userspace rcu git master HEAD, you have this commit
already:

commit e51500edbd9919cee53bc85cbb4b22cd4786fc42
Author: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
Date:   Tue Jun 12 11:24:31 2012 -0400

    Fix c99 compatibility: use __asm__ and __volatile__ in public headers
    
    Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>

Does it fix it for you ?

Thanks,

Mathieu

> 
> 	Gerhard
> 
> On Mon, 4 Jun 2012, Mathieu Desnoyers wrote:
> 
> > Date: Mon, 4 Jun 2012 11:51:43 -0400
> > From: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
> > To: Gerhard Mack <gmack at innerfire.net>,
> >     Alexandre Montplaisir <alexandre.montplaisir at polymtl.ca>
> > Cc: lttng-dev at lists.lttng.org
> > Subject: Re: [RELEASE] Userspace RCU 0.7.3
> > 
> > * Gerhard Mack (gmack at innerfire.net) wrote:
> > > 
> > > Are there any online examples of how to use this library?  I can't seem to 
> > > find any.
> > 
> > The perfbook from Paul McKenney now uses userspace RCU in its examples
> > (http://kernel.org/pub/linux/kernel/people/paulmck/perfbook/perfbook.html)
> > 
> > Also, you will find various small programs in the source tree of the
> > userspace-rcu packages under tests/ that act as test programs, and also
> > show how to use the library. (in the git tree:
> > http://git.lttng.org/?p=userspace-rcu.git;a=tree;f=tests;hb=HEAD)
> > 
> > I guess setting up a tutorial HTML page from the test content would be
> > valuable, we just have not had the time to do it at this point. Maybe
> > setting up links to that documentation on the lttng.org/urcu web page
> > would be a good start though.
> > 
> > Alexandre, when you find a minute, can you look into this ?
> > 
> > Thanks!
> > 
> > Mathieu
> > 
> > 
> > > 
> > > 	Gerhard
> > > 
> > > 
> > > 
> > > On Fri, 1 Jun 2012, Mathieu Desnoyers wrote:
> > > 
> > > > Date: Fri, 1 Jun 2012 14:05:33 -0400
> > > > From: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
> > > > To: linux-kernel at vger.kernel.org, lttng-dev at lists.lttng.org,
> > > >     rp at svcs.cs.pdx.edu
> > > > Cc: Paul E. McKenney <paulmck at linux.vnet.ibm.com>,
> > > >     Lai Jiangshan <laijs at cn.fujitsu.com>,
> > > >     Stephen Hemminger <shemminger at vyatta.com>
> > > > Subject: [RELEASE] Userspace RCU 0.7.3
> > > > 
> > > > 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 minor compatibility-related release, fixing build issues with
> > > > FreeBSD and NetBSD. On Linux, only the test_perthreadlock fix could
> > > > change the result of make check (which could previously fail due to
> > > > non-initialized mutexes), but it does not impact anything installed on
> > > > the system.
> > > > 
> > > > Changelog:
> > > > 2012-06-01 Userspace RCU 0.7.3
> > > >         * Fix tests: make dist lib dependency
> > > >         * Update README for OS supported, tests dependency
> > > >         * Add CodingStyle to tarball
> > > >         * Add coding style document
> > > >         * Test fix: test_perthreadlock uninitialized mutex
> > > >         * tests: support FreeBSD short "time" args
> > > >         * freebsd 8.2 fix: define MAP_ANONYMOUS for compatibility
> > > > 
> > > > Project website: http://lttng.org/urcu
> > > > Download link: http://lttng.org/files/urcu/
> > > > 
> > > > 
> > > 
> > > --
> > > Gerhard Mack
> > > 
> > > gmack at innerfire.net
> > > 
> > > <>< As a computer, I find your faith in technology amusing.
> > 
> > 
> 
> --
> Gerhard Mack
> 
> gmack at innerfire.net
> 
> <>< As a computer, I find your faith in technology amusing.

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