Re: [PATCH 1/5] asm-generic: Add _{relaxed|acquire|release}() variants for inc/dec atomics

[Peter Zijlstra]

On Mon, Oct 05, 2015 at 06:32:43PM +0100, Will Deacon wrote:
> On Thu, Oct 01, 2015 at 07:39:10AM +0100, Peter Zijlstra wrote:
> > On Wed, Sep 30, 2015 at 01:03:11PM -0700, Davidlohr Bueso wrote:
> > > Similar to what we have for regular add/sub calls. For now, no actual arch
> > > implements them, so everyone falls back to the default atomics... iow,
> > > nothing changes. These will be used in future primitives.
> > > 
> > 
> > Maybe also do an aargh64 patch for this?
> 
> I can follow up with that, since I'm about 60% through adding the
> relaxed/acquire/release versions of all the other primitives. It's a fair
> amount of work thanks to the new atomic instructions making me do everything
> twice... (that and I've been on holiday this past week!)

Right, what I meant was arm (I thought argh64 was the one with _relaxed
bits in, but my memories tricked me, it was ARM).

If you add new _relaxed ops, we'd better convert all archs that support
_relaxed, which would be ARM (for now).
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