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Thu, 2 Feb 2023 17:05:26 +0000 (GMT) Date: Thu, 2 Feb 2023 18:05:25 +0100 From: Heiko Carstens To: Peter Zijlstra Cc: torvalds@linux-foundation.org, corbet@lwn.net, will@kernel.org, boqun.feng@gmail.com, mark.rutland@arm.com, catalin.marinas@arm.com, dennis@kernel.org, tj@kernel.org, cl@linux.com, gor@linux.ibm.com, agordeev@linux.ibm.com, borntraeger@linux.ibm.com, svens@linux.ibm.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, joro@8bytes.org, suravee.suthikulpanit@amd.com, robin.murphy@arm.com, dwmw2@infradead.org, baolu.lu@linux.intel.com, Arnd Bergmann , Herbert Xu , davem@davemloft.net, penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com, Andrew Morton , vbabka@suse.cz, roman.gushchin@linux.dev, 42.hyeyoo@gmail.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-s390@vger.kernel.org, iommu@lists.linux.dev, linux-arch@vger.kernel.org, linux-crypto@vger.kernel.org Subject: Re: [PATCH v2 05/10] percpu: Wire up cmpxchg128 Message-ID: References: <20230202145030.223740842@infradead.org> <20230202152655.494373332@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230202152655.494373332@infradead.org> X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: q007MhlDi8JrYKwraOMmgRyUF-vFtQV0 X-Proofpoint-GUID: DA6NDcsG8tlhStEJm4IIuB7oK5XzJxbn X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-02_10,2023-02-02_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 clxscore=1015 suspectscore=0 adultscore=0 bulkscore=0 impostorscore=0 mlxscore=0 mlxlogscore=467 phishscore=0 spamscore=0 lowpriorityscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302020148 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Feb 02, 2023 at 03:50:35PM +0100, Peter Zijlstra wrote: > In order to replace cmpxchg_double() with the newly minted > cmpxchg128() family of functions, wire it up in this_cpu_cmpxchg(). > > Signed-off-by: Peter Zijlstra (Intel) > --- > arch/arm64/include/asm/percpu.h | 21 +++++++++++++++ > arch/s390/include/asm/percpu.h | 17 ++++++++++++ > arch/x86/include/asm/percpu.h | 56 ++++++++++++++++++++++++++++++++++++++++ > include/asm-generic/percpu.h | 8 +++++ > include/linux/percpu-defs.h | 20 ++++++++++++-- > 5 files changed, 120 insertions(+), 2 deletions(-) For s390: Acked-by: Heiko Carstens