On Tue, 2 Sep 2014, Paul E. McKenney wrote: > Yep, these two have been on my "when I am feeling insanely gutsy" list > for quite some time. > > But I have to ask... On x86, is a pair of mfence instructions really > cheaper than an atomic increment?
Not sure why you would need an mfence instruction? > > If the first patch I send gets merged then a lot of other this_cpu related > > optimizations become possible regardless of the ones in the RFC. > > Yep, I am queuing that one. Great. > But could you please do future patches against the rcu/dev branch of > git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git? > I had to hand-apply due to conflicts. Please see below for my version, > and please check to make sure that I didn't mess something up in the > translation. Looks ok. Will use the correct tree next time. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
