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Donenfeld" , , , CC: , , , Greg Kroah-Hartman , "Adhemerval Zanella Netto" , Carlos O'Donell , Florian Weimer , Arnd Bergmann , Jann Horn , Christian Brauner , David Hildenbrand , References: <20240614190646.2081057-1-Jason@zx2c4.com> <20240614190646.2081057-2-Jason@zx2c4.com> Content-Language: en-US From: John Hubbard In-Reply-To: <20240614190646.2081057-2-Jason@zx2c4.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.126.231.35] X-ClientProxiedBy: rnnvmail203.nvidia.com (10.129.68.9) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF00036F41:EE_|SA1PR12MB7248:EE_ X-MS-Office365-Filtering-Correlation-Id: ae0f2220-7528-4c6a-bfac-08dc8ce0a7a2 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230037|36860700010|376011|7416011|1800799021|82310400023; X-Microsoft-Antispam-Message-Info: =?utf-8?B?Q1Y0cjZwclpTOVNSQjhlekREVUhtczZRTGxkaE9IdjROR3pIWnM1TFc3NFBm?= =?utf-8?B?MWc0d2h1aXFEWTlzYm85VS9YTWpEdHAvczZnVFBGY2l4c2FSM3NZdHQvU1pr?= =?utf-8?B?aDdaZ3FnS2ZCazdWT3ZwQkM2TytDZWd4SE5YSFhFd1pONitUQ2dWY05zNmYr?= =?utf-8?B?b1FsR01OZkJ3RkFWeW9kWHRNcEM1NERKQ1dGQmJXM1JvUzBqb2NseWJ4d0hP?= =?utf-8?B?SStiWmJJc3FvZkJvS1RSYmg3RmZVSmdoTWdGcU5NckNtTmE1T0pRZlp2aGx6?= =?utf-8?B?R25TcVB2bnRhbjYyTkF1T0JsOHJham9JWWZjOWttUWxzVzE5cDRKYjB0OURm?= =?utf-8?B?dHlDUTVjNlNwM1B5UU8zL0EwSFdRTHY3K2ZWOWM2eHF6azZjUDdIUDJ0UmFW?= =?utf-8?B?dEp5Vzc0UU1xdVhINkVZVHM2MWpPNm5jWEFHdHk4SDBCWDNGRWNYQk9oNW9D?= =?utf-8?B?cFAxaEJldDF4U0VNU3VLQUdubUdCYncvY1k4SjJxZnBsUXNRK3psbzZwRUdG?= =?utf-8?B?YjdYaEpJZjhGV3dCNnpla0xqVkczakpSdCtHZ1cvRXZqbGd2UFNjTWxiU0Zz?= =?utf-8?B?Q1JXeWt1Y2JvZm1UWm5GQ1E0dmxFVTFJVXdTekJJdHpSMHBHcEhtcWRnUzla?= =?utf-8?B?OVFZQk10Rlk1MWRkRE1Mc2x6TXVFYTdOSGNkMG1Lck01NmFpWEdyNVFOeDlO?= =?utf-8?B?ei9xVVgyYWloS2t1dGw3TXFGWmljRlU1czV4R0JiQkZIYzd3TE13TDd6WGcw?= =?utf-8?B?RmJjVVBBRmdmYUtjUkVwNU5lWDhISWdmOTd1dUY5MjNsejRKenBsRDc2aHpD?= =?utf-8?B?clU2MThPV0VZSjIvNTdab3JkcWdueXozbnZhYk54SEp0SWlla1MvK0xZTkJh?= =?utf-8?B?SmtNM3VicFJ1VTIzb2N1MzhpSDdwNWNZdDBDVTVFbG5MMHlPK3pCeXZjRm1z?= =?utf-8?B?V3pkYnlFVnlrVzlWS0E5ekIxaTNqWVV2QndVSUdrOW43dmdCbFJkSlpvRnB1?= =?utf-8?B?dDhVYnAreGFIa1B3WUoxaHo0eGFyazVmbEhpMjNLbkxhZ2NkaHBBcTJGNzk3?= =?utf-8?B?blh1MVBvU2l2dlFzRHFvNnFId3dsNEFHZjloY3FsZHUxYkw2cEZIM3J6a0l6?= =?utf-8?B?YnZ2bDd3eVhqYjlNQjhlTlpjeHBRYTI3eDRUdG5ZSnRSUDJhaHRlb1ZZRW80?= =?utf-8?B?WC9IR2d0Qkt5T3FWMGVtVXBmNER2TGpzSHNRL2J6ZEU1QmhnRGV6bVhNM1Zt?= =?utf-8?B?V0YvdE80dTZPOVA2NUFoQlREbncvWmFtVVp0bVNYOWVXLy8zT0xJN3lsc09t?= =?utf-8?B?U1NpdGFwZWY4aHZCb2dIczM5eE8yUHZNSEEzRU9XaW9ONW5YNjgwZXFCQUZR?= =?utf-8?B?c09lYWFRNGlMVHVWOTRBUDI2QWlrTDdBbjBtREE3eDJmSG03dlR2S3RlMFlD?= =?utf-8?B?U3FKS2tGNWMyaUUvVUF6b0tUMWJ3dE9IMkxFenhYZTE1SDl1NTVSaVdsR1BR?= =?utf-8?B?V2RYTmJaS2JZdEt4SWo3NWZ5NzVWaDZLVUg3QXlwUWpZcjNjdldpcHRZMFAz?= =?utf-8?B?M2RuZzlNeTJ5SFU4MzlweUlTbWllQUFlNzFpRnpOak1kbDMxZk1WV3dpdS8v?= =?utf-8?B?NjNPeXZVcUlZZVJIdzh2SXYvQlNDaUpGVzlzdWVocDI0ZHI5dzlKa0lHT0JZ?= =?utf-8?B?U0VMVy8zbENXQ09lMjM4WUx1dGJVaDRIVGhxS3hMSjAwOFFMb2o4cTZwb0VC?= =?utf-8?B?UkZodlVwbEhxLzlwUGkwQkxvMnUwMU1LYlczS2g1Rjh4M2JyZVJFTXdtKy9j?= =?utf-8?B?dnZtQm8wbWJQRXVLamlqR2pSUmpLaHZiREc1SThCVE5WUVo0VXF3QWtnUXlo?= =?utf-8?B?aDU3c25SRUJ3VEoyV0VvQWtoQjc5YnRmWFk3ckFUMEVOSUE9PQ==?= X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230037)(36860700010)(376011)(7416011)(1800799021)(82310400023);DIR:OUT;SFP:1101; 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Donenfeld wrote: ... > diff --git a/mm/Kconfig b/mm/Kconfig > index b4cb45255a54..6cd65ea4b3ad 100644 > --- a/mm/Kconfig > +++ b/mm/Kconfig > @@ -1056,6 +1056,9 @@ config ARCH_USES_HIGH_VMA_FLAGS > bool > config ARCH_HAS_PKEYS > bool > +config NEED_VM_DROPPABLE > + select ARCH_USES_HIGH_VMA_FLAGS Hi Jason! The naming and use of NEED_VM_DROPPABLE are a little bit backwards. :) First of all, the name should probably be: HAVE_VM_DROPPABLE ...although that doesn't yet work here. And the reason it doesn't work yet is that the logic also needs to change: only the arch layers should be doing this: select ARCH_USES_HIGH_VMA_FLAGS If a feature does it, then the logic and dependency tree gets all weird and wrong. So: a) 64-bit arches should do this part: select ARCH_USES_HIGH_VMA_FLAGS (already done, in most cases) select HAVE_VM_DROPPABLE b) VDSO_GETRANDOM should depend on: HAVE_VM_DROPPABLE ...and then you'll find that the uses of HAVE_VM_DROPPABLE read more like the pre-existing cases of other "HAVE_" items, too. thanks, -- John Hubbard NVIDIA