Thread (19 messages) 19 messages, 3 authors, 2021-08-06

Re: [PATCH 00/11] ARC atomics update

From: Will Deacon <will@kernel.org>
Date: 2021-08-06 08:41:11
Also in: lkml

On Thu, Aug 05, 2021 at 07:04:32PM +0200, Peter Zijlstra wrote:
On Thu, Aug 05, 2021 at 04:18:29PM +0000, Vineet Gupta wrote:
quoted
On 8/5/21 2:02 AM, Peter Zijlstra wrote:
quoted
On Wed, Aug 04, 2021 at 12:15:43PM -0700, Vineet Gupta wrote:
quoted
Vineet Gupta (10):
   ARC: atomics: disintegrate header
   ARC: atomic: !LLSC: remove hack in atomic_set() for for UP
   ARC: atomic: !LLSC: use int data type consistently
   ARC: atomic64: LLSC: elide unused atomic_{and,or,xor,andnot}_return
   ARC: atomics: implement relaxed variants
   ARC: bitops: fls/ffs to take int (vs long) per asm-generic defines
   ARC: xchg: !LLSC: remove UP micro-optimization/hack
   ARC: cmpxchg/xchg: rewrite as macros to make type safe
   ARC: cmpxchg/xchg: implement relaxed variants (LLSC config only)
   ARC: atomic_cmpxchg/atomic_xchg: implement relaxed variants

Will Deacon (1):
   ARC: switch to generic bitops
Didn't see any weird things:

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Thx Peter. A lot of this is your code anyways ;-)

Any initial thoughts/comments on patch 06/11 - is there an obvious 
reason that generic bitops take signed @nr or the hurdle is need to be 
done consistently cross-arch.
That does indeed seem daft and ready for a cleanup. Will any
recollection from when you touched this?
I had a patch to fix this but it blew up in the robot and I didn't get round
to reworking it:

https://lore.kernel.org/patchwork/patch/1245555/

Will
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