From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from CO1PR03CU002.outbound.protection.outlook.com (mail-westus2azon11010058.outbound.protection.outlook.com [52.101.46.58]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 911E231D372; Tue, 30 Jun 2026 15:10:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.46.58 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782832210; cv=fail; b=ZXgqJgYSF0et949ZlthOU4L7t96Hce2B4VvbMip878r4F0vmXjTEFo50ousj8jAq6US6RFjgFAI9p3ob1dh7H3RKd0MtyhzJ3ZvBavR52Pglq9mwSILahDmcYyjT3zxgoCWb0EgodLA7tkONDh1b5qS8v0Kqjg2W7TEtddxfAhk= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782832210; c=relaxed/simple; bh=YjhMD/X8efnDY2WF7veY95gMjgkKm0MmsYu8IKrkECY=; h=Content-Type:Date:Message-Id:Subject:Cc:To:From:References: In-Reply-To:MIME-Version; b=HPtFkKmZ34EdoVknEd1IprRPW0e8AdITJx+I/Kswp9oU/dwvbYozaMjmi0aRtdL99Kz6nEtnaAI2oGjlM/7me8W9+g5Qxkh6KzPz+GJqS7D+xLMELhBUroKuyRuFCldPEZizLggKx0O8RX2LBbCyiY6+iHwe6lYjX76vLUbuNf8= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com; spf=fail smtp.mailfrom=nvidia.com; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b=sYufEBUR; arc=fail smtp.client-ip=52.101.46.58 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=nvidia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="sYufEBUR" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=iP9bh3XjRxU1vdlXRbKMD9i06YGwBrYWhLC8ZCTV/WkM3VAhnzc5VXTsgcVfa59tzuEyXufQfLBrlJKiRzgF/yOjW8QSyap1KYTsv6X/9jTpqkDcs+x1a3tOYy0ZIStDKMshqlM1vJi029XJbUiKc48uE/m5662u3UilBE7+J2RyDcy4srddMjI8noIEHc05g6nN/2ASZD39txL68ct12mvqc7+TpCwu2MDDO/yoJvjN8nMmnZowIWxSn1aoj0khN9xEn6GoTyemMyA16ZgVJPLeOFrJmH79DlbOapFbeb09g4wDan7Waxz0gM8+UBQp04G7S3uB9PIRmvzmoXXymw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=eoxaXJsILjU7jh80C1WkESw+OFwhH8/Tpv2coL+xT8E=; b=YB/F4pZtNrmkPxw/tRPV1REk1I6y0wRs718Griep8Kyxe585eDh6kesp8bgDAgYNBGMIfGcqISmU/xE5JxZ5R5KwxDaZKCU2L0qmWvamXAtOvW0GklCY8XWsQhWlJuKUjthre+gkP0Wsmt1l5YYOB6KOtu4z6DWSi7S2X9XOjEWxmcRaOL4TZLC4yPN3sp9WhD+p4djOfBYAlYezBAnFdx1rPDEzdTGlXgAteodFOzB+qtY4XMbZfFj22I//R+N2lXr4NypSA8TnnMx8EStIjUnIepSzJLmZsjKmEqo3+D0ol6hKCPMHtKj4rDvElyDko4hKvCYKvu+MlVjhhn7Qpg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=eoxaXJsILjU7jh80C1WkESw+OFwhH8/Tpv2coL+xT8E=; b=sYufEBURKFZymRK3+8C4mnt8zdWAPa4JwHgBQzD6jaNAGXgnqmy9elZ8lxdkAc6nQUok6vtduK+y0ZVX+QIwCqS4wvRlA+u54bK9NterRLTqMgfweHu+1++dfN22QgUW+X1LwdBD/QjdfV4H0tNh2MvtDBKFVWzk7OY+zAkLheua3ZMRtG4uIlhz79dY6S92UEplqahT9ysOrmyeQUi6uporvMJo+4DiWFp8sQt1fAHXbhzC6oIA+AabSfcBIuCtFNSrNlHkLjksnu4FtXtqJAEgAwC2P0hEBB8CtYvrYsLLo4G+uPkRI8x47I2MJiO05NAT31IoiTgT4085ko4srg== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from IA0PR12MB8374.namprd12.prod.outlook.com (2603:10b6:208:40e::7) by SN7PR12MB7202.namprd12.prod.outlook.com (2603:10b6:806:2a9::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.159.19; Tue, 30 Jun 2026 15:09:59 +0000 Received: from IA0PR12MB8374.namprd12.prod.outlook.com ([fe80::d85f:4c87:ae84:3f16]) by IA0PR12MB8374.namprd12.prod.outlook.com ([fe80::d85f:4c87:ae84:3f16%5]) with mapi id 15.21.0181.008; Tue, 30 Jun 2026 15:09:58 +0000 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Tue, 30 Jun 2026 11:09:56 -0400 Message-Id: Subject: Re: [PATCH 01/13] mm: introduce vma_flags_can_grow() and vma_can_grow() Cc: "Andrew Morton" , "Thomas Bogendoerfer" , "Madhavan Srinivasan" , "Michael Ellerman" , "Maarten Lankhorst" , "Maxime Ripard" , "Thomas Zimmermann" , "David Airlie" , "Simona Vetter" , "Lucas Stach" , "Inki Dae" , "Seung-Woo Kim" , "Kyungmin Park" , "Krzysztof Kozlowski" , "Peter Griffin" , "Jani Nikula" , "Joonas Lahtinen" , "Rodrigo Vivi" , "Tvrtko Ursulin" , "Rob Clark" , "Dmitry Baryshkov" , "Lyude Paul" , "Danilo Krummrich" , "Tomi Valkeinen" , "Sandy Huang" , =?utf-8?q?Heiko_St=C3=BCbner?= , "Andy Yan" , "Thierry Reding" , "Mikko Perttunen" , "Jonathan Hunter" , "Gerd Hoffmann" , "Dmitry Osipenko" , "Zack Rusin" , "Matthew Brost" , "Thomas Hellstrom" , "Oleksandr Andrushchenko" , "Helge Deller" , "Benjamin LaHaise" , "Alexander Viro" , "Christian Brauner" , "Muchun Song" , "Oscar Salvador" , "David Hildenbrand" , "Baolin Wang" , "Liam R . Howlett" , "Nico Pache" , "Ryan Roberts" , "Dev Jain" , "Barry Song" , "Lance Yang" , "Hugh Dickins" , "Vlastimil Babka" , "Mike Rapoport" , "Suren Baghdasaryan" , "Michal Hocko" , "Jann Horn" , "Pedro Falcato" , "Kees Cook" , "Jaroslav Kysela" , "Takashi Iwai" , , , , , , , , , , , , , , , , , , , , , To: "Lorenzo Stoakes" From: "Zi Yan" X-Mailer: aerc 0.21.0 References: In-Reply-To: X-ClientProxiedBy: BL1PR13CA0239.namprd13.prod.outlook.com (2603:10b6:208:2bf::34) To IA0PR12MB8374.namprd12.prod.outlook.com (2603:10b6:208:40e::7) Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: IA0PR12MB8374:EE_|SN7PR12MB7202:EE_ X-MS-Office365-Filtering-Correlation-Id: 25ba0c9a-ab30-4465-4f4d-08ded6b9a6a4 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|376014|7416014|23010399003|6133799003|22082099003|18002099003|4143699003|11063799006|56012099006; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:IA0PR12MB8374.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(1800799024)(376014)(7416014)(23010399003)(6133799003)(22082099003)(18002099003)(4143699003)(11063799006)(56012099006);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?aXM0WCtReWtGUVBJTWR6TmdrK1BDRTE0Q0UxbVQrN0YxTWJVV0JtRjJQVENl?= =?utf-8?B?dGZja3VaWW1OWkZmMEgwZkFDWGJ4L1BvRkQyWVl2MWtaWkI3aU5PYUIzcjZt?= =?utf-8?B?L2RGaGlkWW1uTVVLVVJtM0tMUGdPUHpEU3V4TWc3N2xEeUp5d3hNOHdmSng1?= =?utf-8?B?VGt3UEFSU2ZVY1M3ODRvS2ZvT2hxUjMwVmNiejI2SW5UZzQ3UnQraTJRalVP?= =?utf-8?B?OWc0NHVmOXlLdmlwUWlMTGlhUHliVkpPSFY0T3dtUElyMWgzdE5zSVhrKzNu?= =?utf-8?B?OEViV0FUQ2JWTmZQcG1IV0xROWpUOVg3ZU1RVnJYMVNBd2xjMG9kTTlwWWg2?= =?utf-8?B?M2FxcjFjU3pILytIUk05NnBhYXdtU1AyWFBvY0tGR3NHWDF5MkZGNHVRNzhz?= =?utf-8?B?VW5GSnlxeDF2SUxCNTVxeEdYOUxVTXNVZEdqYjd5MHlUV1ljNDlwYU91Z0gw?= =?utf-8?B?OHhjMFI2a2ZhYlZ5Y0IzK0RoS1BTQ0hITUVVbThwK1duaTNMSWdOdkFSVm9L?= =?utf-8?B?MWZSbmxQQ0FoSlZsSVhXZGsyNFBpTU9YUDhQWWk4TCtTL0s3ZDdWWXR1emN5?= =?utf-8?B?V2lnNml3dFdTaENOZjV6SjRxSjZobEpkVE9nNktPWEFjL0d0UURhaGpOVERM?= =?utf-8?B?V3hRWm9jZ2xvNDUyZlhFSUh6V2RaODhZTVdUeXBhL1gxdGJqT215UXFpZWdn?= =?utf-8?B?VFlGdzhkTG9Td2xsbjdBTnRPTnhXWC90TVNHZzM4L29QRitRUFhQNkZVYStN?= =?utf-8?B?d3hkMjQwMnU4NXZvSDkwRUZwa01ueVZsNGxrL3NwTkdWR2hhL1lXdVZmcmhC?= =?utf-8?B?TkUxYklISzFmRTcxNzZ3VjkwcEJWQjlpblplazdNSzdRVXE5RnZCN013OUJy?= =?utf-8?B?UnF1V1o2SE1mZzBmaHhyc3VYWDF1aE1NaGM5WjJjNENreXRPTUxLM1VEV01N?= =?utf-8?B?V3NpdVl4VTkzU05wRWdGdkRldnhqcDV4WFUyNFNPZ2NOdVV6NnpZd09sSWh5?= =?utf-8?B?UTdySHp1OStGQjZwNG9MVm03VklkRi9IMWVOR1NONjRTSWhySUdldm93WjFT?= =?utf-8?B?d1RqT2lQQWlkaDRHQmxxOS9Ob3MrUU5wL0pRdVlGYzV2RGJQK0tvV1RMQWl6?= =?utf-8?B?dW8rM0RjUGg2MHZablA3aklscm9kMnhudlVKK3BTSmU2QlR2NzFFL0xUd054?= =?utf-8?B?NXNuVmhISXdxeFM3OU8yaGhtaUtjVkVTZTd1OWtvSWV3OG83d2VQdXplL0dF?= =?utf-8?B?OHg1bm90UlpIWVd4WkNFN3FtNEJmRTlvbUIza3FiaEE5UU9NNTFYZjNGcE9r?= =?utf-8?B?bzQ3L1RUSnNocTZCNDU4NDVXdFJ5UVU0NzhPWEZpY2xQWm9HcXlFeFNyb1d0?= =?utf-8?B?UTYxMFQ2dms0cWtTRkp2bWVqQnZqWkIwOHdHSStlL0dNNEpRRzJWd2RVSzNn?= =?utf-8?B?WGg0TWVaS2FBUHp3QmtYZFlLSUtRQkVBRUl5SThoSXhtUEpaSThqNUl5ZVZz?= =?utf-8?B?YW5PUjNpR2dkbjZSTHFtN3JEU1FPa2pqRi9xRWRuYUVGUXBzNmpvREx6VDdJ?= =?utf-8?B?WDFqdU1GSUVTN0pYUU1GOG14TjhEQ2xLMXdLaHl5VG42bmZ1eEIyQk5hN0Ra?= =?utf-8?B?Z1BsTWRxYkVsTG96V3BXb3lTblRoZUJFOEkxV1lmQzhWVDBpZGxNeTBTM1Fi?= =?utf-8?B?L1J5R2k0elllRzBaU3I4T1F0UGFqQ1lrbUsrMG9naEtXNStqeHp2UnEvSEV5?= =?utf-8?B?Q2J3dkp1ZjJiUWhBWHdZSnloT2E5Z0RkYWg2V0c2Q0FHVzZXaENkMkIxWXZn?= =?utf-8?B?RTd2R1ZxaVNrRUZ1dGhNVUU0anpkM0tGbDI2ZFFaUDNScHY0WXFUOCs4L1Uz?= =?utf-8?B?K2NqeFdZdTc1QTBFQkNseCsvbWtGd1dtdWo3QXZBcWVMVEcxNmcyUnh5N1lB?= =?utf-8?B?Z2h6ampNeU1adXNsYjVNYUV2VVpHTnV0RG9OSzA2ZDJEQ0JDelJ6dWlZdmt0?= =?utf-8?B?WS93OERIYXdibnErL1NuRFF5MTcwVHVGRDg3bklLbitxUnVYNkxRaklkdGpi?= =?utf-8?B?SzdockgxNGZPYmtHMEttblVTblVzY3l1Q3lZRmYwTHFXTjhRZDVzMzl6cXl5?= =?utf-8?B?Ukk4RzNYZ1lXZW04VC9JV1pDTWNUT2Z5WVpCOCtDeDRHdlJWaFhaQTlDZHpH?= =?utf-8?B?ZWxJck5FQVJOTUZhdnJhNldMVnk3UVlkYUdnaTZteXd1Ri8vZjNodExPZkcz?= =?utf-8?B?VEx0T0FMNGxpWGRoVmxJRnF6N1QrY2xKRWU5Y0FuRGJ2NjVrQW5wUTJicTg1?= =?utf-8?Q?VXmBPftHdX8EVsIops?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 25ba0c9a-ab30-4465-4f4d-08ded6b9a6a4 X-MS-Exchange-CrossTenant-AuthSource: IA0PR12MB8374.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Jun 2026 15:09:58.7994 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: JnAYTkFnPevWfBepW6Rd8YtqtMSRQbCTBTdlMJEJeNmkdtpxg3jlpUgR9RhMt7p8 X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN7PR12MB7202 On Tue Jun 30, 2026 at 3:38 AM EDT, Lorenzo Stoakes wrote: > On Mon, Jun 29, 2026 at 04:26:18PM -0400, Zi Yan wrote: >> On Mon Jun 29, 2026 at 3:25 PM EDT, Lorenzo Stoakes wrote: >> > These test whether the VMA has stack sematics, i.e. is able to grow up= wards >> > or downwards depending on the architecture. >> > >> > In order to account for arches which do not support upward-growing sta= cks, >> > introduce VMA_GROWSUP whose definition depends on the architecture >> > supporting it, and use vma_flags_test_single_mask() in vma_flags_can_g= row() >> > to account for this. >> > >> > Update the VMA userland tests to reflect the changes >> > >> > No functional change intended. >> > >> > Signed-off-by: Lorenzo Stoakes >> > --- >> > include/linux/mm.h | 21 ++++++++++++++++++--- >> > tools/testing/vma/include/dup.h | 4 ++++ >> > 2 files changed, 22 insertions(+), 3 deletions(-) >> > >> > diff --git a/include/linux/mm.h b/include/linux/mm.h >> > index 868b2334bff3..cf7df1569052 100644 >> > --- a/include/linux/mm.h >> > +++ b/include/linux/mm.h >> > @@ -472,6 +472,7 @@ enum { >> > #define VM_SAO INIT_VM_FLAG(SAO) >> > #elif defined(CONFIG_PARISC) >> > #define VM_GROWSUP INIT_VM_FLAG(GROWSUP) >> > +#define VMA_GROWSUP mk_vma_flags(VMA_GROWSUP_BIT) >> > #elif defined(CONFIG_SPARC64) >> > #define VM_SPARC_ADI INIT_VM_FLAG(SPARC_ADI) >> > #define VM_ARCH_CLEAR INIT_VM_FLAG(ARCH_CLEAR) >> > @@ -483,6 +484,7 @@ enum { >> > #endif >> > #ifndef VM_GROWSUP >> > #define VM_GROWSUP VM_NONE >> > +#define VMA_GROWSUP EMPTY_VMA_FLAGS >> > #endif >> > #ifdef CONFIG_ARM64_MTE >> > #define VM_MTE INIT_VM_FLAG(MTE) >> > @@ -1563,11 +1565,24 @@ static inline bool vma_is_initial_stack(const = struct vm_area_struct *vma) >> > vma->vm_end >=3D vma->vm_mm->start_stack; >> > } >> > >> > -static inline bool vma_is_temporary_stack(const struct vm_area_struct= *vma) >> > +static inline bool vma_flags_can_grow(const vma_flags_t *flags) >> > { >> > - int maybe_stack =3D vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP); >> > + if (vma_flags_test_single_mask(flags, VMA_GROWSUP)) >> > + return true; >> > + if (vma_flags_test(flags, VMA_GROWSDOWN_BIT)) >> > + return true; >> > + >> > + return false; >> > +} >> > >> > - if (!maybe_stack) >> > +static inline bool vma_can_grow(const struct vm_area_struct *vma) >> > +{ >> > + return vma_flags_can_grow(&vma->flags); >> >> Would it save vma_flags_can_grow() if we do below? >> >> return vma_test(vma, VMA_GROWSDOWN_BIT) || vma_test_single_mask(vma, VMA= _GROWSUP); >> >> I find these two functions when I am reading mm.h. > > Yeah but we require vma_flags_can_grow() for code in mmap.c, the majority= of > checks of this have only vma_flags_t to work with not a VMA :) > Got it. I think I need to finish this series. :) >> >> > +} >> > + >> > +static inline bool vma_is_temporary_stack(const struct vm_area_struct= *vma) >> > +{ >> > + if (!vma_can_grow(vma)) >> > return false; >> > >> > if ((vma->vm_flags & VM_STACK_INCOMPLETE_SETUP) =3D=3D >> > diff --git a/tools/testing/vma/include/dup.h b/tools/testing/vma/inclu= de/dup.h >> > index 5d7d0afd7765..6f5bcd7fbcd8 100644 >> > --- a/tools/testing/vma/include/dup.h >> > +++ b/tools/testing/vma/include/dup.h >> > @@ -245,8 +245,10 @@ enum { >> > #define VM_STACK INIT_VM_FLAG(STACK) >> > #ifdef CONFIG_STACK_GROWS_UP >> > #define VM_STACK_EARLY INIT_VM_FLAG(STACK_EARLY) >> > +#define VMA_STACK_EARLY mk_vma_flags(VMA_STACK_EARLY_BIT) >> > #else >> > #define VM_STACK_EARLY VM_NONE >> > +#define VMA_STACK_EARLY EMPTY_VMA_FLAGS >> > #endif >> > #ifdef CONFIG_ARCH_HAS_PKEYS >> > #define VM_PKEY_SHIFT ((__force int)VMA_HIGH_ARCH_0_BIT) >> > @@ -315,6 +317,8 @@ enum { >> > >> > /* Bits set in the VMA until the stack is in its final location */ >> > #define VM_STACK_INCOMPLETE_SETUP (VM_RAND_READ | VM_SEQ_READ | VM_ST= ACK_EARLY) >> > +#define VMA_STACK_INCOMPLETE_SETUP append_vma_flags( \ >> > + VMA_STACK_EARLY, VMA_RAND_READ_BIT, VMA_SEQ_READ_BIT) >> > >> > #define TASK_EXEC_BIT ((current->personality & READ_IMPLIES_EXEC) ? \ >> > VM_EXEC_BIT : VM_READ_BIT) >> >> Why are VMA_STACK_EARLY and VMA_STACK_INCOMPLETE_SETUP added here but >> not in mm.h? > > Yeah urgh oops my bad. It doesn't really break anything but I'll fix it i= f a > respin is needed... Sure. --=20 Best Regards, Yan, Zi