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Tue, 3 Jan 2023 17:16:43 +0000 (GMT) Date: Tue, 3 Jan 2023 18:16:41 +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, Herbert Xu , davem@davemloft.net, 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 , 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, linux-crypto@vger.kernel.org, iommu@lists.linux.dev, linux-arch@vger.kernel.org Subject: Re: [RFC][PATCH 11/12] slub: Replace cmpxchg_double() Message-ID: References: <20221219153525.632521981@infradead.org> <20221219154119.550996611@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221219154119.550996611@infradead.org> X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: aYt5JesJFhS0mKJx405t1-xW5NqppuLb X-Proofpoint-GUID: Z03ZnZI1MCXR4CrburtVGAvLqmHB93ng X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2023-01-03_05,2023-01-03_02,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 suspectscore=0 adultscore=0 mlxscore=0 phishscore=0 spamscore=0 bulkscore=0 impostorscore=0 lowpriorityscore=0 priorityscore=1501 malwarescore=0 mlxlogscore=618 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2301030145 Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org On Mon, Dec 19, 2022 at 04:35:36PM +0100, Peter Zijlstra wrote: > > Signed-off-by: Peter Zijlstra (Intel) > --- > include/linux/slub_def.h | 12 ++- > mm/slab.h | 41 +++++++++++-- > mm/slub.c | 146 ++++++++++++++++++++++++++++------------------- > 3 files changed, 135 insertions(+), 64 deletions(-) Does this actually work? Just wondering since I end up with an instant list corruption on s390. Might be endianness related, but I can't see anything obvious at a first glance.