From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 28C64C54EE9 for ; Tue, 13 Sep 2022 16:22:17 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 629FE8D0001; Tue, 13 Sep 2022 12:22:16 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5C39E6B0072; Tue, 13 Sep 2022 12:22:16 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 452318D0001; Tue, 13 Sep 2022 12:22:16 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 32C696B0071 for ; Tue, 13 Sep 2022 12:22:16 -0400 (EDT) Received: from smtpin08.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 12F8DC0BCF for ; Tue, 13 Sep 2022 16:22:16 +0000 (UTC) X-FDA: 79907579472.08.D81DFF9 Received: from JPN01-OS0-obe.outbound.protection.outlook.com (mail-os0jpn01olkn2100.outbound.protection.outlook.com [40.92.98.100]) by imf06.hostedemail.com (Postfix) with ESMTP id 863D318008B for ; Tue, 13 Sep 2022 16:22:15 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=DWoRncdEYvMDzl7UISQRCDYD6I+41bqMxL+n91Nn3uZr7JDMlNKHH7wKQzy9+9pxNJRUBdntkmMRtuhSWT0W+Db4IqluD/3o4KbUMFA5bX89OqK9YnnZ90Ks1ygeOtCZ9sOn5EGM8VAomXTIc5LCOyn1C8kS3BomUeIKQLoTlsb84eVZNVPeOThf2tfoevzQG6Dj/3D5Gnvui3+/IsPFuRA0sHy8m1Tv7wLJR4NsG3IyO5DQSbOFhzwh0IschG4fqo3sbQ2xfD4zbtDh88+HKtaqDfFdZ8Rbynip8V1IrRRE/EyJ0VJ4mjcIMrsqPqpcHSmtmXekZZdrBvl4LeHB5g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; 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=hFFzN6HyxVDp6++o9aXYTIouEDXFRsFE2Wv04kjX07I=; b=kjEjGxbkvFIK4NQKqRbTT+NAKTxcoJ2/QamBg7Lp/7WpIBrpxWfrzDWqdrztank7T5WYPyjzrNPrj/ZD+uC+8WCKB8Uw3sOCqgzP57kEZ4qv1ttbJRBynG2QC7cT98cA9ETqH+kW+ULrdlDCw57vrf0UcLKMBaMPErwdZUA/eMLtticsO0K7E+rCv9AmLG5oeDmy/rUQi/riOZuRNjOYINTQOXHRFTOsplVPgWlopLqPWOwJQW40twYLxqVGOI1EFlNe6P9LmxlKYhueilgC0DTWxR6JiWWWm4J1Lq7uLku63eCeBzLdSga1mJNPrktmraSwZPOUSMqTR+dal4FrTg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=none; dmarc=none; dkim=none; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=outlook.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=hFFzN6HyxVDp6++o9aXYTIouEDXFRsFE2Wv04kjX07I=; b=rZmOsh1F6+oivLZKWdLzvqSoDsfKlY7dRvCsGFArE4AHgyfsnPesg/Pz6aeaPkBVslzsX6VObbYilKt/py916voIYy7+vpZsMQNSYbUHD61qPmwPjg9ATE4qVtDK+hei8sgIcm6luGyj1/OfMOL/75iwxEB/lHTlfR/AH5Nr6wSehWZbpal9ulqf7GhBUkWSR9Mf6+59KpqVEO2a4vIjppF56Q19BsrJtHS2YZrX7I/m/tUxFnd0nUIDmlOAlQwkeuhfGd7c9MdIIrdPXeD3fRI/fcEM90YtbFK3zjwp79dk2U1u2xWND9nbAlBb4i7z56OmXM5nh5NIoGEjUfHBoQ== Received: from TYCP286MB2323.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:152::9) by TYCP286MB2146.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:158::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5612.12; Tue, 13 Sep 2022 16:22:11 +0000 Received: from TYCP286MB2323.JPNP286.PROD.OUTLOOK.COM ([fe80::8d69:1a6d:5def:16db]) by TYCP286MB2323.JPNP286.PROD.OUTLOOK.COM ([fe80::8d69:1a6d:5def:16db%4]) with mapi id 15.20.5612.022; Tue, 13 Sep 2022 16:22:11 +0000 From: Dawei Li To: sj@kernel.org, akpm@linux-foundation.org Cc: damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Dawei Li Subject: [PATCH] mm/damon: Creating kmem cache for damon regions by KMEM_CACHE() Date: Wed, 14 Sep 2022 00:21:58 +0800 Message-ID: X-Mailer: git-send-email 2.25.1 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-TMN: [8alXQgIZM0+q4CsoLmoSY65t7Jir3Cwr] X-ClientProxiedBy: SI2PR01CA0044.apcprd01.prod.exchangelabs.com (2603:1096:4:193::8) To TYCP286MB2323.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:152::9) X-Microsoft-Original-Message-ID: <20220913162158.157767-1-set_pte_at@outlook.com> MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: TYCP286MB2323:EE_|TYCP286MB2146:EE_ X-MS-Office365-Filtering-Correlation-Id: 26472d5b-8b58-4578-ea90-08da95a41c89 X-MS-Exchange-SLBlob-MailProps: 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 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?KOIOh+Oe8zO7WEM3gN7azAFYTx42hGIdct88SZcrMPAm/r6FVxoyyUYSVm7E?= =?us-ascii?Q?ipLFpR4FrDyrtjn87N/aHk4WT3zctaSHV4F5on34aqMS+/69SVRq8u8yWk19?= =?us-ascii?Q?Pw4X4VhuT4kTJ5HWi3hnK80f88BBAdNVSdFyK88SBmfM+pWblv20f3lkLiqM?= =?us-ascii?Q?9VthD4hynox1PY5SshHyWU+pIUSlSgWb8e7kbefaxRf46oMo+FzbagAx3GkB?= =?us-ascii?Q?6AyzGBqeN3Lk4U9g1y5Bq8UUVyBqAWcF4Jl3aVj6uQP4KSv8f7YNpFriooAk?= =?us-ascii?Q?eRwEKR9HJCgDO1KmBZxHqx593+WKvXxYZkO9J8I7ATDlGqaDw+NufMIM4Edg?= =?us-ascii?Q?0+IEpDGpAeapHCnOsaXKINXuv2E0L1ne5TvxlHae3qZKMCyi8Glc6WE72zUe?= =?us-ascii?Q?n7Hd+grBanhaCi+ye66LsHuXah+YaejcLVxUFbv5SKiLzACvu3WWvdySRyiO?= =?us-ascii?Q?NYndLNbWNCMq+NMNOZOireHxUyGpkkKSkclUnH87W4+EF+VJHAl2Dx5oIwfe?= =?us-ascii?Q?CfpAjkzwS6WjAN6dlNHkRy6Rd2DnPIa5pEewLA7t/l8EBZ+tliCTNAbwTlLN?= =?us-ascii?Q?XbEJGjBrxaqN4RStq2XT4tyWvfQy9kmVvqmTZ+jlsHJ5UJdvV0nK0dVgcpMX?= =?us-ascii?Q?UEqTjdui5Kw8wvlgkh/fdIT+NFmC+SATZtvwdAYtH/457Uq5MP1nEBNzOh/r?= =?us-ascii?Q?9EKP127H1cjNE6MNt0JZ3wDXY8OODizJiD2t3dtyUz0BUfG5H3r/d4xUuBw6?= =?us-ascii?Q?QQZ0w4EpIXJoVqq91avtm5BicvPaaY+hMriHFrfGGr4wu6o8qF0gWjjphcee?= =?us-ascii?Q?itUjV3Mo3PuFUxeG27X+fdGiVwOejNbxAbbiS8oOPZ/lYnks8uaNt+jFUpUG?= =?us-ascii?Q?IcSUHUfkvt3qNPOx90xTGgqznhv4+mogVCCkN67rM+YuZjehYlgiGKbw1TEQ?= =?us-ascii?Q?uHppF0UV1Q7XZcDNTaSwO7JKzZx95Rho9IWZc6yJW757xMP123dTwpDzSu9F?= =?us-ascii?Q?17HcmkKyTv3xYAgMQ7AhRmoLNXarYlHo91e7yAEIe0+uUGh46o0LdVzIw3U6?= =?us-ascii?Q?xC7F9Tn3JULC2mKpY9R1J85UnvE7zrIVTdc/75SszplCXodMUMO+Cwc9mhLI?= =?us-ascii?Q?XheADkoEQ3fQkooyvadLlzkCmU9Gqxcj3JkQF+Pg/u9A0IofpaUEzAZK8Xzf?= =?us-ascii?Q?3lEp0QLBn73R3AzwIznGM3CDBD0liyz+ncp6fOccGAmUBRlQqUyTSSIy6rlJ?= =?us-ascii?Q?038zZOSfPzwPGyxSoRuXU9AQCRLxOfu/4rQvjXommQ=3D=3D?= X-OriginatorOrg: outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 26472d5b-8b58-4578-ea90-08da95a41c89 X-MS-Exchange-CrossTenant-AuthSource: TYCP286MB2323.JPNP286.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Sep 2022 16:22:11.6240 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-Transport-CrossTenantHeadersStamped: TYCP286MB2146 ARC-Seal: i=2; s=arc-20220608; d=hostedemail.com; t=1663086135; a=rsa-sha256; cv=pass; b=c19tSSu8XbFemUkerhaOzSjw2tHGcyCsCPrwRb+KPJnk9+rR2fW7TdvWD/+w9qJ2pOTRZL 80a86GFuDqTzsUXr8vio8i2s+FOQtbswcSt7PCOLIkcrIgeybUWZLkR97Vt7eFIIJXkOgu W7AzpvzzZD0eJ2Ru3+g6Lejo2xT49l4= ARC-Authentication-Results: i=2; imf06.hostedemail.com; dkim=pass header.d=outlook.com header.s=selector1 header.b=rZmOsh1F; spf=pass (imf06.hostedemail.com: domain of set_pte_at@outlook.com designates 40.92.98.100 as permitted sender) smtp.mailfrom=set_pte_at@outlook.com; dmarc=pass (policy=none) header.from=outlook.com; arc=pass ("microsoft.com:s=arcselector9901:i=1") ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1663086135; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding:in-reply-to: references:dkim-signature; bh=hFFzN6HyxVDp6++o9aXYTIouEDXFRsFE2Wv04kjX07I=; b=V8dWm2ClcIy3WqlW2zFUaAr/Ok46bPS7oCpHKPbadT0UovHHHNEQGxMr+biMMtVJ0hsv62 Uv/iIfO9ppHCvtw33hUcZaDY7nm2EVWVJ0ryVvjdhKflD5E6RfH2a5FxdxgPgO/EjWYYN1 lJ/m4I88aCCBpkJhnCOioxUtpzEL6ss= X-Rspamd-Queue-Id: 863D318008B Authentication-Results: imf06.hostedemail.com; dkim=pass header.d=outlook.com header.s=selector1 header.b=rZmOsh1F; spf=pass (imf06.hostedemail.com: domain of set_pte_at@outlook.com designates 40.92.98.100 as permitted sender) smtp.mailfrom=set_pte_at@outlook.com; dmarc=pass (policy=none) header.from=outlook.com; arc=pass ("microsoft.com:s=arcselector9901:i=1") X-Rspam-User: X-Rspamd-Server: rspam10 X-Stat-Signature: iun6sxh7iekhhomm9o3npjh918qkopo8 X-HE-Tag: 1663086135-813425 X-Bogosity: Ham, tests=bogofilter, spamicity=0.010115, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Damon regions are dynamic objects which can be created and destroyed frequently, a dedicated slab cache is created by KMEM_CACHE(), as suggested by akpm. Signed-off-by: Dawei Li --- mm/damon/core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/damon/core.c b/mm/damon/core.c index 0b1eb945c68a..20163c3c9aa7 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -1283,8 +1283,7 @@ bool damon_find_biggest_system_ram(unsigned long *start, unsigned long *end) static int __init damon_init(void) { - damon_region_cache = kmem_cache_create("damon_region_cache", sizeof(struct damon_region), - 0, 0, NULL); + damon_region_cache = KMEM_CACHE(damon_region, 0); if (unlikely(!damon_region_cache)) { pr_err("creating damon_region_cache fails\n"); return -ENOMEM; -- 2.25.1