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Date:   Thu, 23 May 2019 11:28:13 +0100
From:   Mark Rutland <mark.rutland@arm.com>
To:     Arnd Bergmann <arnd@arndb.de>
Cc:     Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
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Subject: Re: [PATCH 00/18] locking/atomic: atomic64 type cleanup
Message-ID: <20190523102813.GC3370@lakrids.cambridge.arm.com>
References: <20190522132250.26499-1-mark.rutland@arm.com>
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On Wed, May 22, 2019 at 11:18:59PM +0200, Arnd Bergmann wrote:
> On Wed, May 22, 2019 at 3:23 PM Mark Rutland <mark.rutland@arm.com> wrote:
> >
> > Currently architectures return inconsistent types for atomic64 ops. Some return
> > long (e..g. powerpc), some return long long (e.g. arc), and some return s64
> > (e.g. x86).
> >
> > This is a bit messy, and causes unnecessary pain (e.g. as values must be cast
> > before they can be printed [1]).
> >
> > This series reworks all the atomic64 implementations to use s64 as the base
> > type for atomic64_t (as discussed [2]), and to ensure that this type is
> > consistently used for parameters and return values in the API, avoiding further
> > problems in this area.
> >
> > This series (based on v5.1-rc1) can also be found in my atomics/type-cleanup
> > branch [3] on kernel.org.
> 
> Nice cleanup!
> 
> I've provided an explicit Ack for the asm-generic patch if someone wants
> to pick up the entire series, but I can also put it all into my asm-generic
> tree if you want, after more people have had a chance to take a look.

Thanks!

I had assumed that this would go through the tip tree, as previous
atomic rework had, but I have no preference as to how this gets merged.

I'm not sure what the policy is, so I'll leave it to Peter and Will to
say.

Mark.