On Fri, 11 Oct 2019, Manfred Spraul wrote:
I don't know. The new documentation would not have answered my question (is it ok to combine smp_mb__before_atomic() with atomic_relaxed()?). And it copies content already present in atomic_t.txt.
Well, the _relaxed (and release/acquire) extentions refer to a _successful_ operation (LL/SC), and whether it has barriers on each of the sides before and after. I thought you were mainly worried about the failed CAS scenario, not the relaxed itself. I don't know how this copies content from atomic_t.txt, at no point does it talk about failed CAS.
Thus: I would prefer if the first sentence of the paragraph is replaced: The list of operations should end with "...", and it should match what is in atomic_t.txt
I'll see about combining some of your changes in patch 5/5 of your new series, but have to say I still prefer my documentation change. Thanks, Davidlohr
