Re: [PATCH v2 03/10] arch: Introduce arch_{,try_}_cmpxchg128{,_local}()

[Heiko Carstens]

On Thu, Feb 02, 2023 at 03:50:33PM +0100, Peter Zijlstra wrote:
> For all architectures that currently support cmpxchg_double()
> implement the cmpxchg128() family of functions that is basically the
> same but with a saner interface.
> 
> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
> ---
>  arch/arm64/include/asm/atomic_ll_sc.h |   41 +++++++++++++++++++++++++
>  arch/arm64/include/asm/atomic_lse.h   |   31 +++++++++++++++++++
>  arch/arm64/include/asm/cmpxchg.h      |   26 ++++++++++++++++
>  arch/s390/include/asm/cmpxchg.h       |   14 ++++++++
>  arch/x86/include/asm/cmpxchg_32.h     |    3 +
>  arch/x86/include/asm/cmpxchg_64.h     |   55 +++++++++++++++++++++++++++++++++-
>  6 files changed, 168 insertions(+), 2 deletions(-)

For s390:
Acked-by: Heiko Carstens <hca@xxxxxxxxxxxxx>