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Thu, 23 Nov 2023 09:23:57 +0000 (GMT) From: Sumanth Korikkar To: linux-mm , Andrew Morton , David Hildenbrand Cc: Oscar Salvador , Michal Hocko , "Aneesh Kumar K.V" , Anshuman Khandual , Gerald Schaefer , Sumanth Korikkar , Alexander Gordeev , Heiko Carstens , Vasily Gorbik , linux-s390 , LKML Subject: [PATCH v2 7/7] s390: enable MHP_MEMMAP_ON_MEMORY Date: Thu, 23 Nov 2023 10:23:43 +0100 Message-Id: <20231123092343.1703707-8-sumanthk@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231123092343.1703707-1-sumanthk@linux.ibm.com> References: <20231123092343.1703707-1-sumanthk@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: yS8mHflc-hQ0QxnqPWywWogbjP7kcYb5 X-Proofpoint-ORIG-GUID: 0kVFvKCEU7cKCqrnqQ1w2WWgDLzYcr_Z X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-23_07,2023-11-22_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 mlxscore=0 suspectscore=0 bulkscore=0 priorityscore=1501 phishscore=0 mlxlogscore=806 adultscore=0 lowpriorityscore=0 spamscore=0 clxscore=1015 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311230067 X-Rspamd-Queue-Id: 83D544001A X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: gp65s4sogng7tst6mc4mu8ygisfjr5x5 X-HE-Tag: 1700735320-180969 X-HE-Meta: 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 WrJhuZ6j DHTXJ9VssYcwP6r9N0YwAixXpPZcxuIIrI/gZ2OAn+8xcBYCpAtasAl+ylO52bjTv6rlOHHlJ95XWrOtnUhT/X7/LRv4hUuoBVyFpW7aGFjnlCb9f5fGjPtG39BviTPZwkXdVxrQieshBknQ0MRYCc61c+RNDihSWfzYnXM6e9mum4ptu9XFasavzIxGNaQ8bu9Ro X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Enable MHP_MEMMAP_ON_MEMORY to support "memmap on memory". memory_hotplug.memmap_on_memory=true kernel parameter should be set in kernel boot option to enable the feature. Reviewed-by: Gerald Schaefer Signed-off-by: Sumanth Korikkar --- arch/s390/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 3bec98d20283..4b9b0f947ddb 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -113,6 +113,7 @@ config S390 select ARCH_INLINE_WRITE_UNLOCK_BH select ARCH_INLINE_WRITE_UNLOCK_IRQ select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE + select ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE select ARCH_STACKWALK select ARCH_SUPPORTS_ATOMIC_RMW select ARCH_SUPPORTS_DEBUG_PAGEALLOC