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Wed, 14 Oct 2026 12:20:34 +0000 (GMT) Received: from [0.0.0.0] (unknown [9.111.31.234]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 14 Oct 2026 12:20:34 +0000 (GMT) Message-ID: <6255e61c-6c0c-4a36-8d78-9157440919fe@linux.ibm.com> Date: Wed, 14 Oct 2026 14:20:34 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] s390: Select ARCH_MEMORY_ORDER_TSO To: Heiko Carstens , Alexander Gordeev , Sven Schnelle , Vasily Gorbik , Christian Borntraeger Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org References: <20261014115006.537790-1-hca@linux.ibm.com> Content-Language: en-US From: Ilya Leoshkevich In-Reply-To: <20261014115006.537790-1-hca@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDE0MDA0OCBTYWx0ZWRfX5nff2lZapeg3 LfPNdFUN7T/lf6cGtcjtG1mo3jlrVqmhjblLqkJIH7eDU9g00/aaNbyV/SeeBUBBpqr0Z7Om8vB pKaJdoYmqPQJvh0HcB6ZnAuz2JA7KPPeBlNX07XrEl3JNSixz/KcqNzAVUSOunKXX4Wrrpq7tm2 JFu6Gw85kQzBr/ipTfeduOOWAy9qRbHjVnPMo5iSpGRmS770z8D8xMQatlaIvwGsg+t+ky/gSgf C+tal3XqvcaGlUozxrqkAiKnyurAFW2mJ/AJF1bR6Emp22xUS8lNiPHkOBqF0vTG6Yy41IgZnbO rL03OzmKIjlBLpqsn6NgR3M2KCg1+cXdiBr4pXFP4b3fdrfKJjMphbjTim1ACxbFlvlVZsokPpt e1BRP+SL24bhN1PHoLzFqpHN46+nAtsvGt2ac7e+h07V+GF/iMvY3+u2KnJOeT0nCJ9zjRRR+WR kC/YzSIb+6op3MJdvPg== X-Proofpoint-GUID: uCwBFjm2xAEOKSmbwIAE9nXnnq5lcquQ X-Proofpoint-ORIG-GUID: uCwBFjm2xAEOKSmbwIAE9nXnnq5lcquQ X-Proofpoint-Spam-Info: AW1haW4tMjYxMDE0MDA0OCBTYWx0ZWRfX46fieTKEb/tc FSlOQkOTp3JrZ27IbSeSq+eWhFYbBvResoHTyF539T2ezWISeUlsZ/YK7Q0JjK672RvvbNweDOA pG4VbIp4z2Q9/1wgPC/mv3sRvEoJ9kY= X-Authority-Analysis: v=2.4 cv=btHZl0ai c=1 sm=1 tr=0 ts=6acf7397 cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=VnNF1IyMAAAA:8 a=LQFbTukdLxTeUF92zhsA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-13_01,2026-10-09_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 malwarescore=0 phishscore=0 impostorscore=0 adultscore=0 lowpriorityscore=0 priorityscore=1501 clxscore=1015 spamscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610140048 On 10/14/26 13:50, Heiko Carstens wrote: > s390 is a Total Store Order (TSO) architecture. Therefore select > ARCH_MEMORY_ORDER_TSO which was introduced with [1]. As of now this has > only a small effect on futex_robust_unlock(), but that might change in > the future. > > [1] commit 6149fc36c09b ("uaccess: Provide unsafe_atomic_store_release_user()") > > Signed-off-by: Heiko Carstens > --- > arch/s390/Kconfig | 1 + > 1 file changed, 1 insertion(+) Reviewed-by: Ilya Leoshkevich