From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from NAM12-MW2-obe.outbound.protection.outlook.com (mail-mw2nam12on2049.outbound.protection.outlook.com [40.107.244.49]) (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 BDAE322DA0C; Mon, 23 Jun 2025 09:53:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.244.49 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750672385; cv=fail; b=lXNgay7wPfp+M6SpsZDkCnmQzkWHQ48VR0AKChssSde191v+2dKVcMmotcOl/hxkHEEljpeqR+WBqUB+14X5BcSMx5cBMhXToEYEmct37MKnZqkRmbMyDnoWTpjtuofzDS2nwII5uY1IHrLZ7QsmkXIZdZN7lA0E+xTJ27sNFkw= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750672385; c=relaxed/simple; bh=H6ZRMGGTnX6rssbOtOy9wuFTjz6cTTQTmLrZSqBuNEg=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=YXj5U4mwKQsAfjl0HOws3idq78Bh1AeZ/fws3AiQg6sCoiHIQRwAVQwZlOFEjjcoBLV/ykY959VSfQz9R67YqkltnuFyKaSFNFJjdzY0y488H97z/t3Ql+t4TRXk7SqSC+2eVcq0rl16VYomvsVCjxoru5joEyEfgcK1FLkoVZU= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=ZnOa5aRJ; arc=fail smtp.client-ip=40.107.244.49 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="ZnOa5aRJ" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=TjWxbOpmk3Qb6NfX3/l9ttTC52JybFe7v4xjSYxMTmOkbwFACuYCG4qqPFppeGTTIV0WhnznwR+n6L0IZHyqEzz/W2wHwP/7WA55sJgJKKvr6TOZlCaMF0bPsDVfmjh38mbYITkGgI7An718ZSMgS12PUFKNH7dTgmVdHwWoCbQNo7p0i/aQhoAPnKegT85MPKr9x9+y7zEXfBW1awwPOzivAFEcr5TdCXj3OxKZUEcPp/EdeIR2jRS5uRuYMCGFqyleVNuGqPvjHSTfhjf/GxScQCII8JO9nt9cnfjwtfwwJHl2omutky6UQWCs/RF2c8rt8hDFgG9DZ53wsRmFBw== 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=cANi4d8otGA2QoVHiP3RKSYcGq7o07Z4eDJYTR8a3L4=; b=O9WUYhIQjNb4Au8xpERHEqhp6xBx1a291wEPCjQrsxo6s2Z/SRzjxEbPUkKJIF9LAABMo3OcQk6UvBl5qhZZ6jbD61vUHbijcyF2+YuLrsDl3T8DhPAVyUiB2xxSanZax2nfgjvoD9dbG4meu9fwblUFCnQTQVVE5YXmz86I+000E/Ukv0PfZpvbXXutpFERJvnboP6O/yTmgQXK0bP/+h6+IgPCIgsx3c6N7rJuiM72BpaeKdxFTN+YmAl73DvNj2njDZFrXB9blDt/treUK+OwCmx6nywLh0vpG9Zl40dLaKI6ZZc3xGP4EXSQb8AfRpDGqZgwrxxNetGEa/bjFw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=linux.dev smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=cANi4d8otGA2QoVHiP3RKSYcGq7o07Z4eDJYTR8a3L4=; b=ZnOa5aRJ4gYYmNM5MJkU3tgjLg1pnJKcT2Ujvlf+jeoFjcSm7CTBuF2g32mHB39js/kegb3ksAYG66jWTFjBg1Ittl5wNtbW143tnIMTT41nL62mL7XeGA9aQSkpnWCQjYRR7aPtCXgv5PKU9e7TKvze4Sm3zw6M4s8jf4LvnC0= Received: from DM6PR06CA0094.namprd06.prod.outlook.com (2603:10b6:5:336::27) by CH3PR12MB9729.namprd12.prod.outlook.com (2603:10b6:610:253::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8857.21; Mon, 23 Jun 2025 09:52:59 +0000 Received: from DS1PEPF00017093.namprd03.prod.outlook.com (2603:10b6:5:336:cafe::40) by DM6PR06CA0094.outlook.office365.com (2603:10b6:5:336::27) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.8857.30 via Frontend Transport; Mon, 23 Jun 2025 09:52:59 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by DS1PEPF00017093.mail.protection.outlook.com (10.167.17.136) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8880.14 via Frontend Transport; Mon, 23 Jun 2025 09:52:58 +0000 Received: from kaveri.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Mon, 23 Jun 2025 04:52:51 -0500 From: Shivank Garg To: , , , , , , , , , , CC: , , , , , , , , , , , , , , Shivank Garg Subject: [PATCH V2 2/2] mm/filemap: Extend __filemap_get_folio() to support NUMA memory policies Date: Mon, 23 Jun 2025 09:39:43 +0000 Message-ID: <20250623093939.1323623-6-shivankg@amd.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250623093939.1323623-4-shivankg@amd.com> References: <20250623093939.1323623-4-shivankg@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS1PEPF00017093:EE_|CH3PR12MB9729:EE_ X-MS-Office365-Filtering-Correlation-Id: e41f6f37-eadd-4cf8-4f16-08ddb23bbc56 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|36860700013|376014|7416014|1800799024|13003099007|921020; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?9X2eb1n+Trxc/DStueVMd8NGuzinR4+cqkSqSqn1maEneJ3YLzMlbff7t6HF?= =?us-ascii?Q?jFpibs4jHVqjIPx1v3HoPAjSEnLlHDZor9WEbAIKsnsthHUFho7CtTs1z9I3?= =?us-ascii?Q?e+g1qGGsj8ItRVLkNl+fevUU26XgfUY311TzV18W6KW7Xmj9kMrxuOE8lD/I?= =?us-ascii?Q?Mf/JUn4xHE0VpDT+j0b+vBg3BfG3Xc4ElFPACoctlhIdNRxWHEpZIbZvaAcy?= =?us-ascii?Q?/gxsCiS0O4CB6QobaY4hHvxtZY2onAepym24vyf3UCZKteUq2NFzEq2kSS8+?= =?us-ascii?Q?9jKCcuTodnQQs8+IHJojU7CRUjSD7hbkOwwJPkMR/qs5NA5/32Do1atL6slQ?= =?us-ascii?Q?E8AmJTII1zC9in1MeF7p5zY0RgeYp0tsefWtb4lvhvNQDSjvrhB+p0958YQ9?= =?us-ascii?Q?R2VVn+XNLInmaVGuPdeA73qQEvQes6K2ELUAWE9AcgBQlGxWHKXcB1c+qmvA?= =?us-ascii?Q?3m5v14DhIEC3P20b1kVGAVB9wYwp7QyZuogAaTXUQJf9Tdhxi9Ym8ruUPoDt?= =?us-ascii?Q?IdCiGROzQiI3ytmcRSNeo1ti4VkSKJm8uyWxtvpMp9HCYLMRc/Qpfej4RCtb?= =?us-ascii?Q?SUfZTsc2zzG7DJmYit5J9ImAcEz1OBBvDR5F6TkYCazbZLj4id1xfgkKjE6n?= =?us-ascii?Q?asw2Toq85D6K876cfxMWFPjMDrVhfnEPn8Yl4eUQ52m+/OLumswrsoolrGtu?= =?us-ascii?Q?78EjRZZ/4l17YlQYoo2KZZulGwJXn0q+UaxLRGsLl599ys3l5WKujtN1XUQ1?= =?us-ascii?Q?TYLttKTiowLHRh6F+J4MuRBQ02FPASXzP3iEjQ84VAqVKD93bNNxcFSvpkhp?= =?us-ascii?Q?SxdOCDX1kOsp7Gs+n+T0SB9zc4RtTpWqHru7Pa0xMUpZgdJoo+K9ldcavwzj?= =?us-ascii?Q?51H7ACqghb3XYlB5+vZmww+l6DJJ0DPNJHsQSsSMy6hzYGErc4dXvpnxtokA?= =?us-ascii?Q?iYYk/Sv22f215oyUM5RecNhqiIcXVblTf4jhfnazP7UmcI6Z7O0kpoHc3D3i?= =?us-ascii?Q?sFSTH2TeTzGyMc7AE+FexGQ53f5CbYSDLq2yAbniNwztTjC7zVkTfXcLxMNF?= =?us-ascii?Q?5HmLjZfubqY6gPS03uAo7djZQRscTaMtxjuggECLh1wHc+FsP2Iwmb57n+E+?= =?us-ascii?Q?2pKAlhNG35Usk1MU4zshrCFBW8L84V30oqCjQeDz5a8UirYVgWRc6oQi7M77?= =?us-ascii?Q?vJJsnq3QPGSiP4doEM7UNohutzGm4XAyDEQU2konTyyJbyi1LRVRHyZcr6b4?= =?us-ascii?Q?Lqysfdx42ZvOXdBskkkjyANkmbCmUd2H6vcRaXG0WT4FF4ExtXfs68Ym3A7N?= =?us-ascii?Q?kK28O0SFqwoqDYIpQ8qDu7Je6rnbra8lpvRkkFcXST/CKJLOEb3MOTv3RVmZ?= =?us-ascii?Q?P93OqBp5SiSeAOaWDa6nhs36L+CwM0x9CASVzGhsJSegq1h09lsBH378bPED?= =?us-ascii?Q?PrJVk+xF3Oo7foAYQFdOWK9hKz0wWDHq9bnnOLUlHBauumxqW2Dg/C79ofnH?= =?us-ascii?Q?ZaRWTx6LviiXElL7fVH4h8U4sHmcfXcLnm0GtZdmUX6UolGHVoycgmkmIw?= =?us-ascii?Q?=3D=3D?= X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(82310400026)(36860700013)(376014)(7416014)(1800799024)(13003099007)(921020);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Jun 2025 09:52:58.8300 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e41f6f37-eadd-4cf8-4f16-08ddb23bbc56 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS1PEPF00017093.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB9729 From: "Matthew Wilcox (Oracle)" Extend __filemap_get_folio() to support NUMA memory policies by renaming the implementation to __filemap_get_folio_mpol() and adding a mempolicy parameter. The original function becomes a static inline wrapper that passes NULL for the mempolicy. This infrastructure will enable future support for NUMA-aware page cache allocations in guest_memfd memory backend KVM guests. Reviewed-by: Pankaj Gupta Reviewed-by: Vlastimil Babka Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Shivank Garg --- Changes in V2: - fix checkpatch warnings. - touch up commit description and fix code alignments to make it more readable. V1: https://lore.kernel.org/all/20250620143502.3055777-2-willy@infradead.org include/linux/pagemap.h | 10 ++++++++-- mm/filemap.c | 11 ++++++----- 2 files changed, 14 insertions(+), 7 deletions(-) diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 78ea357d2077..981ff97b4445 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -747,11 +747,17 @@ static inline fgf_t fgf_set_order(size_t size) } void *filemap_get_entry(struct address_space *mapping, pgoff_t index); -struct folio *__filemap_get_folio(struct address_space *mapping, pgoff_t index, - fgf_t fgp_flags, gfp_t gfp); +struct folio *__filemap_get_folio_mpol(struct address_space *mapping, + pgoff_t index, fgf_t fgf_flags, gfp_t gfp, struct mempolicy *policy); struct page *pagecache_get_page(struct address_space *mapping, pgoff_t index, fgf_t fgp_flags, gfp_t gfp); +static inline struct folio *__filemap_get_folio(struct address_space *mapping, + pgoff_t index, fgf_t fgf_flags, gfp_t gfp) +{ + return __filemap_get_folio_mpol(mapping, index, fgf_flags, gfp, NULL); +} + /** * filemap_get_folio - Find and get a folio. * @mapping: The address_space to search. diff --git a/mm/filemap.c b/mm/filemap.c index a30cd4dd085a..ec7de38c17c1 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1896,11 +1896,12 @@ void *filemap_get_entry(struct address_space *mapping, pgoff_t index) } /** - * __filemap_get_folio - Find and get a reference to a folio. + * __filemap_get_folio_mpol - Find and get a reference to a folio. * @mapping: The address_space to search. * @index: The page index. * @fgp_flags: %FGP flags modify how the folio is returned. * @gfp: Memory allocation flags to use if %FGP_CREAT is specified. + * @policy: NUMA memory allocation policy to follow. * * Looks up the page cache entry at @mapping & @index. * @@ -1911,8 +1912,8 @@ void *filemap_get_entry(struct address_space *mapping, pgoff_t index) * * Return: The found folio or an ERR_PTR() otherwise. */ -struct folio *__filemap_get_folio(struct address_space *mapping, pgoff_t index, - fgf_t fgp_flags, gfp_t gfp) +struct folio *__filemap_get_folio_mpol(struct address_space *mapping, + pgoff_t index, fgf_t fgp_flags, gfp_t gfp, struct mempolicy *policy) { struct folio *folio; @@ -1982,7 +1983,7 @@ struct folio *__filemap_get_folio(struct address_space *mapping, pgoff_t index, err = -ENOMEM; if (order > min_order) alloc_gfp |= __GFP_NORETRY | __GFP_NOWARN; - folio = filemap_alloc_folio(alloc_gfp, order, NULL); + folio = filemap_alloc_folio(alloc_gfp, order, policy); if (!folio) continue; @@ -2029,7 +2030,7 @@ struct folio *__filemap_get_folio(struct address_space *mapping, pgoff_t index, folio_clear_dropbehind(folio); return folio; } -EXPORT_SYMBOL(__filemap_get_folio); +EXPORT_SYMBOL(__filemap_get_folio_mpol); static inline struct folio *find_get_entry(struct xa_state *xas, pgoff_t max, xa_mark_t mark) -- 2.43.0