From nobody Mon Oct 6 08:26:57 2025 Received: from TYPPR03CU001.outbound.protection.outlook.com (mail-japaneastazon11012056.outbound.protection.outlook.com [52.101.126.56]) (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 51D2028152A for ; Thu, 24 Jul 2025 08:46:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.126.56 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753346768; cv=fail; b=Q2hz9rbyAQT9+yo33iTyZtmFbyqZQMiAwA891inozfxFKBDy8oZ86elGKh/O5A/iizoGRNToarZT+fAzqewIgg/FfM9i2Tj0u6nRIphqhNfO9ON1Us2US8KNP3L8Vq16k3J/14hLE3HYzUZXBo9LwATI+BInj1NwQHUGXbrR4fY= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753346768; c=relaxed/simple; bh=zbs4M0deY81qjCh63ZjWZFu9HGageoIZ+PArrh2vjQc=; h=From:To:Subject:Date:Message-Id:In-Reply-To:References: Content-Type:MIME-Version; b=tYsXeDFGVwt2NOtSS9qhLmxTg2mc81F5ixvPACAIRt86LrXHvbaBUD9XfsDFb8mSyN9uyrnlg8roCKJjzcFXfYp1AOg6GuachP0JnVcE4Y4IahIr25WwUw8/dVdVtD8V3cTrBsEcdA6BDLSXU2/jzlt58tvpi4PrP2jDPIukLfY= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=vivo.com; spf=pass smtp.mailfrom=vivo.com; dkim=pass (2048-bit key) header.d=vivo.com header.i=@vivo.com header.b=Ok2DuZGl; arc=fail smtp.client-ip=52.101.126.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=vivo.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=vivo.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=vivo.com header.i=@vivo.com header.b="Ok2DuZGl" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=TxMnukXvjlDkflzWm2lzH4lMZjx7kfy4aV5j9SbN2uKAFK56gYtZ5Wlx+5L/tXAok1LbnWzN/J6ZHfWc4PO3z6E00QQAwphauKZbboZe99pY8FbFgym5Nfh9v08zcat53ijVKhSUB9KyRowFToEz0vTeVzAHsXG1kgutrK+60FJpejcQJQ42Lny/LTlOA9w6d04PlFqjYaj6+qJxidecgcg2u5Q11iqL+fxI1wjtODa+tf2/jq5jJTqanjMpeihvNcWPZuxQhMyN96zoyoJetJnBch+tR8phWnUXIy0cRutfMzy7gZZBChWavinG8mOB6+UHY0GU0TlIQZZC+ES29Q== 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=w8vNQTxEiBGsHHcBYGEaSLVl0jn54V4X6W24zQBAnVM=; b=iyCJYsGD5YlNHBnIUb1WGFAAazxezQedXcryYGlHNiTSqlj+a/CLCKNDjlqwU8iIany2jJA1iPBtQpje0T2QsG0UyqWbNWHexp2v6pVB1fl6vrTTAavRiD2dFjBm+6sGsWp1dz0iQRWNoy2U40TPArfVqQhIlMoPEj4KzF5h15g5zAleLe9FHW2XCLzPdm5udH9rCq9BNZXMBPqRQVODJqMvSrKU7tZRpHANgt6E1BRmtqgV7cTH/qyb1ieT8s18HB7BtmovfqDGvDZFiunP5p9AKCwza22d27qx9NnjIuwcr+C3TsWYpHr3GZPcNN16F/KJnZOEQrVDYbThTdVBtA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=vivo.com; dmarc=pass action=none header.from=vivo.com; dkim=pass header.d=vivo.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vivo.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=w8vNQTxEiBGsHHcBYGEaSLVl0jn54V4X6W24zQBAnVM=; b=Ok2DuZGlCPsbloDfKDT92UGrd3Km6BD1pNapSX/zafSmHI6RjHHoR7sEr5tDYPeZ9+m9xr2LNO2GnL6oM0xgFspww2nrvVeTsxEmgd85AG36o6H6UKZSoyxKVNoYWUBKJUxkrcTyEaJf7BVdOfLQwbncbZJsAI0Pphp90KSxPWtP1r7mdI4tRpaq4cXg1Nz3rI74mIwI2NvOFV1AGxCNtc1I+Gd7yzs2nh4FlhVnDW5ST1lvvlHMP62/ArYhVW2O5NIStb4igCkoE1eqYqA9nPBQ4c3QcQMGI8bAt4HIGH/F58OGCfP02eULJzSZ6NXByqHdX6uJxeyJuiuAfhJgxQ== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=vivo.com; Received: from PUZPR06MB5676.apcprd06.prod.outlook.com (2603:1096:301:f8::10) by PS1PPF2A261C07C.apcprd06.prod.outlook.com (2603:1096:308::247) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8964.21; Thu, 24 Jul 2025 08:46:03 +0000 Received: from PUZPR06MB5676.apcprd06.prod.outlook.com ([fe80::a00b:f422:ac44:636f]) by PUZPR06MB5676.apcprd06.prod.outlook.com ([fe80::a00b:f422:ac44:636f%4]) with mapi id 15.20.8943.029; Thu, 24 Jul 2025 08:46:03 +0000 From: Huan Yang To: Andrew Morton , David Hildenbrand , Lorenzo Stoakes , Rik van Riel , "Liam R. Howlett" , Vlastimil Babka , Harry Yoo , Xu Xin , Chengming Zhou , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Zi Yan , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , "Matthew Wilcox (Oracle)" , Huan Yang , Christian Brauner , Usama Arif , Yu Zhao , Baolin Wang , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH 4/9] mm/rmap: add args in rmap_walk_control done hook Date: Thu, 24 Jul 2025 16:44:32 +0800 Message-Id: <20250724084441.380404-5-link@vivo.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250724084441.380404-1-link@vivo.com> References: <20250724084441.380404-1-link@vivo.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: TYWP286CA0006.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:178::16) To PUZPR06MB5676.apcprd06.prod.outlook.com (2603:1096:301:f8::10) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PUZPR06MB5676:EE_|PS1PPF2A261C07C:EE_ X-MS-Office365-Filtering-Correlation-Id: d183e51c-7cee-4c71-8519-08ddca8e85b6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|52116014|7416014|376014|366016|38350700014|921020; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?/mk8Pl1J4w5kYorFEYxfDIsY2FtGd/4Prk65Ms3W1PKsrR2Y6zzcenEysLBV?= =?us-ascii?Q?BGhgkh6hhSIrlQndvhFemj3UjZaXhigBthFjl972aYez4FEW47I5lod9NKXu?= =?us-ascii?Q?ZESLq/QTXLXHXJqbHiVC/pXo4F6+Zqgq58RlSaHK+VfCne1DUWauRe0jqvl3?= =?us-ascii?Q?tD5hIm4y1P0gTDuJTvju5t1tYCBw1FbNPVDhUzTtdqEuDK+PKImiNTQzwGW3?= =?us-ascii?Q?ifwVS3E73dG+T79Jkj9c7SDqAIxT+hnk/rSJ6X4fNpwVKqCg8IKbOCmUgf5h?= =?us-ascii?Q?uy/0nGXOdO4ogaJ7qBBBBovM2FC+DSHhSdQ9WKrxeqBYTRIn2eGmhV8/x/z+?= =?us-ascii?Q?hvyWx26w3JtYa8nKOweZzkkIPk4pFfm3nG8hlUSkm3BQFz3kCrmD8rEndxOB?= =?us-ascii?Q?QNmGXPzCDfugJtGo4spj3hLyc7/Nz02T/98nIqR/yVJjbR5l2M/3ReoVQMwH?= =?us-ascii?Q?BqnpOHnYll/CrFJ7dM431xuz8xaPH0XoKkOhXcipphy9p3vjs+U3WGOAtJ/Q?= =?us-ascii?Q?92Jg1JjpL1gsXuPW+y9Gun6R4rJY0UHHA8lURSw7Yljr23z7q6dQQlmodlky?= =?us-ascii?Q?CDu3u9Lw7shMv6WG72ave4xlO9eIcCzIZCq3PwNL9HArdW4Mztl/ZZvU6ANq?= =?us-ascii?Q?yf701oXAiXVrxI+MfNZPRisBvVIF0O/YuyE1opSgWAxmie6MObGLDZ9Q7/Ok?= =?us-ascii?Q?9lULxPScvddSk94fPdhcT8ppPX8l915qUzhIv3JaIR255CLn7lDe56qECTTL?= =?us-ascii?Q?JUOzBt1Q/utUA1KgdMaUld8NR81U29LUwbhfu9ZxTLP0fhJzlyYgqkSjEtpv?= =?us-ascii?Q?ONMwd2w/fwAQ3Z4W6ZGsy2iIzxOhguFkidxXNGrShgkAt/3oANywWvg35fqA?= =?us-ascii?Q?f22kjzm3su3/Zekdi71Y91phSNuHkm69dI3E44qEO5vHrS0ZtGuTCOwhPwwS?= =?us-ascii?Q?0YQVf4KXRjr8U+ZBXw7T5O6sk1T6RjempWN5NITnfS7PnFbLCtg16cfWy+kZ?= =?us-ascii?Q?3NCZzfTzhijeQxknvfc5y6HybpJQ+2BJUY6F6eoqI9ALg/igU86gV4i3MqnL?= =?us-ascii?Q?ccQNZWJW2whJRownuNAoSuct/AcHkV9BrukalZ5BPmpYToad0LUbmJCHVEK0?= =?us-ascii?Q?/LpP/M+2Vh8aFCS830oblVCj7GIwGOxpkeF3etVjTatPAQ2QKZMtcoGezplU?= =?us-ascii?Q?lbFTd46vR6xh0QbO8fWfxksy3snB9uahxUVH852KX0aKI0CfiV4xzxWEGeKX?= =?us-ascii?Q?5i1qQqNjuqowfbOKryAEURoGGxELFnw8maT6goUiU0mJFpe+8TmaBNkhKZlW?= =?us-ascii?Q?Oya1J5BfNW+j45ImTBMwsqeVvPKGxmvfLbM/35WuyCInET/9tMaLPOhjC7Ng?= =?us-ascii?Q?k43kkrcm5Xc11IQF9hFsZCeSmskCHbBcCU866piSYgEgXLRzhwLyM8zexwtf?= =?us-ascii?Q?m1s+Jkoqwm5fkbRY0A51uBhZ8efQrQ8sd0VBvJCDIdFOsmBmYyRIy2RSuDNG?= =?us-ascii?Q?1K5JGZXtjQUkIMk=3D?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PUZPR06MB5676.apcprd06.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(52116014)(7416014)(376014)(366016)(38350700014)(921020);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?9hNSVi4irf+Kp6C68XbqqOzdATIREJn0CrnuW16r9wkHrqFLqL4xbPdR9ex1?= =?us-ascii?Q?oEq0iOnQF0xV1K9HSKbLRXf0mBCecZmAp9SX+bN5ES2Ivh6IQn6z80bTnMgM?= =?us-ascii?Q?WwHA0PwSBTSKPRC1sPyHCpUPHWLsh+Zod4XIyIcxnNTnPwkmblJLSjF5oJGS?= =?us-ascii?Q?6K6ZbkkuVtsB8UdiLiQ3jUujZz462dOfd1XLkSSBRSMDQrMU3jBTNqlNm3Gu?= =?us-ascii?Q?tiAGOGxkH+NVANqzBZ1pI2Py6KSSCKxCnDkbW0mpTcol7fwyrZZzBXwqzRcO?= =?us-ascii?Q?ttqlv96iBOzMzRhzip6XNzxdQZ2Fz1a/PXTU7Im5SA6l540/M9Xv7M72uAAq?= =?us-ascii?Q?4UO1ObA6hnDk6voKiG/gO0HJQIRe+mGACj9zXyyW5hG4KkZCcUD0nLxu3iZ9?= =?us-ascii?Q?GQB5ntAKbadQ7yIoeihdYfSyNpGLCVms8+t/s3jln5104DqsbFwj7Idb+wTA?= =?us-ascii?Q?A7pAl16W7dBgR9MTlBWmQzU/LLnPctGxa//gGCvw4pOejJXZDyAsRJoTl03K?= =?us-ascii?Q?jTreFeqmMMlFm51Wvcg4bMDb3KQNEMuXZ0AOND3RvKp0YaRP5ygekZ7ICS7m?= =?us-ascii?Q?6HbZby8qCgfDDE3/NxI+QSf3qlrwykbD+S8skRPSDv1NcRsDdBeZs90XHTMV?= =?us-ascii?Q?Vrf/Z81KgUzFRn1cXgJeokGNv43IcZ7EoaglZ+/d39F/niGVo0wKq2G51SkS?= =?us-ascii?Q?JLTfnO1xMSTVyOE4ozG6LV7E4LF2ZCBtPfRO9GquzAjss10k4Ckf7oZUCMIB?= =?us-ascii?Q?rImftFMl2DU7VxTsvdWmyEuT/800IPMh9tdgpuhNRq6noKlQ+AMGGYDiqEQt?= =?us-ascii?Q?H/ZcxskbjHaEJIjeEIbBBOfQSRUbkUTrOMkwcthvfSY7rwAMBpgHZjRcirBO?= =?us-ascii?Q?ZlH7M0pzQ+SDU/xp7Axvvw1hiQ0FkAGKt4j71S72AAcnwdUuFTGfhwzjkaEJ?= =?us-ascii?Q?kXtXM6LXddmYZdw36DyPHoHRjFYywI71+FKkvEidLp5pUWbTEklEow5QSYQq?= =?us-ascii?Q?Qa7gF+2eMYRKhCNjvID/mpglvmQGLqngCBbTS2fFnDm7B9MsgRQe5BorG56S?= =?us-ascii?Q?91trxW+QRxek5fIVofuNIMTHYLpKQnPgz9VkqaMlP8ugpQHJIjLa2cVy7J/Q?= =?us-ascii?Q?QmskvqikrJFyghn9TTibsU0Az0zFnA5rU3j5lvKdYlYEDMy076YaLxUUaAuB?= =?us-ascii?Q?u6wNUsmAC2fn0E5E3m/m0GHyeB7bvJib5CwgiK24k+kPS8N3oU8UKxd0as1J?= =?us-ascii?Q?ZWumi4ybdMoax8V6+eHDklNNR/lkv2pE6Lw5kJDHeJiGJeHkgxcY7Zo3X1fe?= =?us-ascii?Q?wVlimTljVwWtubUdAbrWE0j4TARmloSBGQS0gSSrBlVW5mJeF9XWE8Y7NVWU?= =?us-ascii?Q?oC2DAXWIRtCE+U4jv9hAEemswpGq4ca/n+au6O0CZmB7gbRZvmpsm36Zhg+c?= =?us-ascii?Q?cWW7PTVlX80e4pdlTWscBqYF/GHNnABcoGaUWPTtM0OMLLM6Us6XHAs7l81z?= =?us-ascii?Q?wcLElPmbh+Cc7NqIY+2Z+9cgzNV3rCwdcsudx5WnBnGPoeGV+XvdHWbZ0Igg?= =?us-ascii?Q?rut0OITfW+5O+31w9iGdsnjXQKbyOV/3/ODtJHmK?= X-OriginatorOrg: vivo.com X-MS-Exchange-CrossTenant-Network-Message-Id: d183e51c-7cee-4c71-8519-08ddca8e85b6 X-MS-Exchange-CrossTenant-AuthSource: PUZPR06MB5676.apcprd06.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Jul 2025 08:46:03.6028 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 923e42dc-48d5-4cbe-b582-1a797a6412ed X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: jTWFXfafncaAwJrHO+omnMZkO5PzwKh9+A76IrwpPmGZ8TIbMkdBhcg41xw0b/SKzXOJLKSdeCSd7+CAert/aA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PS1PPF2A261C07C Content-Type: text/plain; charset="utf-8" In the done hook that determines whether rmap_walk can terminate the traversal early, we may need to read parameters from rmap_walk_control to assist in this decision. This patch adds the rmap_walk_control as a parameter to the done hook. Signed-off-by: Huan Yang --- include/linux/rmap.h | 2 +- mm/ksm.c | 2 +- mm/rmap.c | 6 +++--- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/include/linux/rmap.h b/include/linux/rmap.h index f0d17c971a20..a305811d6310 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -1013,7 +1013,7 @@ struct rmap_walk_control { */ bool (*rmap_one)(struct folio *folio, struct vm_area_struct *vma, unsigned long addr, void *arg); - int (*done)(struct folio *folio); + int (*done)(struct folio *folio, struct rmap_walk_control *rwc); struct anon_vma *(*anon_lock)(const struct folio *folio, struct rmap_walk_control *rwc); bool (*invalid_vma)(struct vm_area_struct *vma, void *arg); diff --git a/mm/ksm.c b/mm/ksm.c index ef73b25fd65a..635fe402af91 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -3072,7 +3072,7 @@ void rmap_walk_ksm(struct folio *folio, struct rmap_w= alk_control *rwc) anon_vma_unlock_read(anon_vma); return; } - if (rwc->done && rwc->done(folio)) { + if (rwc->done && rwc->done(folio, rwc)) { anon_vma_unlock_read(anon_vma); return; } diff --git a/mm/rmap.c b/mm/rmap.c index bae9f79c7dc9..e590f4071eca 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -2232,7 +2232,7 @@ static bool invalid_migration_vma(struct vm_area_stru= ct *vma, void *arg) return vma_is_temporary_stack(vma); } =20 -static int folio_not_mapped(struct folio *folio) +static int folio_not_mapped(struct folio *folio, struct rmap_walk_control = *rwc) { return !folio_mapped(folio); } @@ -2828,7 +2828,7 @@ static void rmap_walk_anon(struct folio *folio, struc= t rmap_walk_control *rwc) =20 if (!rwc->rmap_one(folio, vma, address, rwc->arg)) break; - if (rwc->done && rwc->done(folio)) + if (rwc->done && rwc->done(folio, rwc)) break; } =20 @@ -2891,7 +2891,7 @@ static void __rmap_walk_file(struct folio *folio, str= uct address_space *mapping, =20 if (!rwc->rmap_one(folio, vma, address, rwc->arg)) goto done; - if (rwc->done && rwc->done(folio)) + if (rwc->done && rwc->done(folio, rwc)) goto done; } done: --=20 2.34.1