On Fri, Jan 15, 2016 at 09:39:12AM -0800, Paul E. McKenney wrote: > Should we start putting litmus tests for the various examples > somewhere, perhaps in a litmus-tests directory within each participating > architecture? I have a pile of powerpc-related litmus tests on my laptop, > but they probably aren't doing all that much good there. Yeah, or a version of them in C that we can 'compile'? > > commit 2cb4e83a1b5c89c8e39b8a64bd89269d05913e41 > Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> > Date: Fri Jan 15 09:30:42 2016 -0800 > > documentation: Distinguish between local and global transitivity > > The introduction of smp_load_acquire() and smp_store_release() had > the side effect of introducing a weaker notion of transitivity: > The transitivity of full smp_mb() barriers is global, but that > of smp_store_release()/smp_load_acquire() chains is local. This > commit therefore introduces the notion of local transitivity and > gives an example. > > Reported-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx> > Reported-by: Will Deacon <will.deacon@xxxxxxx> > Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> I think it fails to mention smp_mb__after_release_acquire(), although I suspect we didn't actually introduce the primitive yet, which raises the point, do we want to?
