From nobody Mon Dec 15 21:27:27 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1DDA4C00140 for ; Thu, 18 Aug 2022 13:14:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244962AbiHRNOo (ORCPT ); Thu, 18 Aug 2022 09:14:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39446 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244980AbiHRNOD (ORCPT ); Thu, 18 Aug 2022 09:14:03 -0400 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2568F62AB8 for ; Thu, 18 Aug 2022 06:13:49 -0700 (PDT) Received: from pps.filterd (m0098417.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 27ICxohl026681; Thu, 18 Aug 2022 13:11:12 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=XmLg6OLOMq6BKTRPoejiLXiFZksM5cUcBPKRSS+HmWI=; b=Mf/a2ILdJP/m9tEdXU8wXm58B7HzZ8VvuijI35e3LzHfXVSH3ywfkbzvPgnQ6CedUFtv UYjAS1uRX/VgMstJqPW4sLuSRya1Z6FEegKBPOwT2YTzuah9vcMnSmCQWNtHuSs8k5yA PtEcoxWWUMjvvv2nR66CGn3t+m9OoPc5M9w68bw+UHJGP82KmRQFdu4gKp5nlDhw+kaF QG1nVzUjHoaFxKPU0UiSSYYV63dnpkuVa6FDBH5ojsQ1G560196/6zXge9JD1PKWjxmC zXrWsL6/wN2L3+l/Bpv7C2x8+qfZdbUWP3ddpLFe+uLT7xUgU/rqDMxiYm1P9uSfbmmd 3Q== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3j1nx0rhu3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 18 Aug 2022 13:11:12 +0000 Received: from m0098417.ppops.net (m0098417.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 27ICxoYA026692; Thu, 18 Aug 2022 13:11:11 GMT Received: from ppma03dal.us.ibm.com (b.bd.3ea9.ip4.static.sl-reverse.com [169.62.189.11]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3j1nx0rhtr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 18 Aug 2022 13:11:11 +0000 Received: from pps.filterd (ppma03dal.us.ibm.com [127.0.0.1]) by ppma03dal.us.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 27ID5dqu002960; Thu, 18 Aug 2022 13:11:10 GMT Received: from b01cxnp22033.gho.pok.ibm.com (b01cxnp22033.gho.pok.ibm.com [9.57.198.23]) by ppma03dal.us.ibm.com with ESMTP id 3hx3kaehs5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 18 Aug 2022 13:11:10 +0000 Received: from b01ledav002.gho.pok.ibm.com (b01ledav002.gho.pok.ibm.com [9.57.199.107]) by b01cxnp22033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 27IDB97764618834 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 18 Aug 2022 13:11:09 GMT Received: from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 87B5A124058; Thu, 18 Aug 2022 13:11:09 +0000 (GMT) Received: from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C4279124054; Thu, 18 Aug 2022 13:11:00 +0000 (GMT) Received: from skywalker.ibmuc.com (unknown [9.43.111.107]) by b01ledav002.gho.pok.ibm.com (Postfix) with ESMTP; Thu, 18 Aug 2022 13:11:00 +0000 (GMT) From: "Aneesh Kumar K.V" To: linux-mm@kvack.org, akpm@linux-foundation.org Cc: Wei Xu , Huang Ying , Yang Shi , Davidlohr Bueso , Tim C Chen , Michal Hocko , Linux Kernel Mailing List , Hesham Almatary , Dave Hansen , Jonathan Cameron , Alistair Popple , Dan Williams , Johannes Weiner , jvgediya.oss@gmail.com, Bharata B Rao , "Aneesh Kumar K.V" Subject: [PATCH v15 02/10] mm/demotion: Move memory demotion related code Date: Thu, 18 Aug 2022 18:40:34 +0530 Message-Id: <20220818131042.113280-3-aneesh.kumar@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220818131042.113280-1-aneesh.kumar@linux.ibm.com> References: <20220818131042.113280-1-aneesh.kumar@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-GUID: CpO2Oa9ZtExkPCTLe1HWPdhlpl4JKX3p X-Proofpoint-ORIG-GUID: h7FhnIlYQ17fQbTDnNq1nnY-3Ql-oF1h X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-08-18_12,2022-08-18_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 priorityscore=1501 mlxscore=0 spamscore=0 suspectscore=0 lowpriorityscore=0 phishscore=0 clxscore=1015 bulkscore=0 impostorscore=0 adultscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2207270000 definitions=main-2208180045 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" This move memory demotion related code to mm/memory-tiers.c. No functional change in this patch. Reviewed-by: "Huang, Ying" Signed-off-by: Aneesh Kumar K.V --- include/linux/memory-tiers.h | 8 +++++ include/linux/migrate.h | 2 -- mm/memory-tiers.c | 64 ++++++++++++++++++++++++++++++++++++ mm/migrate.c | 60 +-------------------------------- mm/vmscan.c | 1 + 5 files changed, 74 insertions(+), 61 deletions(-) diff --git a/include/linux/memory-tiers.h b/include/linux/memory-tiers.h index 5206568f34ed..c82a1abefca0 100644 --- a/include/linux/memory-tiers.h +++ b/include/linux/memory-tiers.h @@ -15,4 +15,12 @@ */ #define MEMTIER_ADISTANCE_DRAM ((4 * MEMTIER_CHUNK_SIZE) + (MEMTIER_CHUNK_= SIZE >> 1)) =20 +#ifdef CONFIG_NUMA +#include +extern bool numa_demotion_enabled; + +#else + +#define numa_demotion_enabled false +#endif /* CONFIG_NUMA */ #endif /* _LINUX_MEMORY_TIERS_H */ diff --git a/include/linux/migrate.h b/include/linux/migrate.h index 22c0a0cf5e0c..96f8c84413fe 100644 --- a/include/linux/migrate.h +++ b/include/linux/migrate.h @@ -103,7 +103,6 @@ static inline int migrate_huge_page_move_mapping(struct= address_space *mapping, #if defined(CONFIG_MIGRATION) && defined(CONFIG_NUMA) extern void set_migration_target_nodes(void); extern void migrate_on_reclaim_init(void); -extern bool numa_demotion_enabled; extern int next_demotion_node(int node); #else static inline void set_migration_target_nodes(void) {} @@ -112,7 +111,6 @@ static inline int next_demotion_node(int node) { return NUMA_NO_NODE; } -#define numa_demotion_enabled false #endif =20 #ifdef CONFIG_COMPACTION diff --git a/mm/memory-tiers.c b/mm/memory-tiers.c index 1f494e69776a..f3dc3318d931 100644 --- a/mm/memory-tiers.c +++ b/mm/memory-tiers.c @@ -3,6 +3,8 @@ #include #include #include +#include +#include #include =20 struct memory_tier { @@ -127,3 +129,65 @@ static int __init memory_tier_init(void) return 0; } subsys_initcall(memory_tier_init); + +bool numa_demotion_enabled =3D false; + +#ifdef CONFIG_MIGRATION +#ifdef CONFIG_SYSFS +static ssize_t numa_demotion_enabled_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + return sysfs_emit(buf, "%s\n", + numa_demotion_enabled ? "true" : "false"); +} + +static ssize_t numa_demotion_enabled_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t count) +{ + ssize_t ret; + + ret =3D kstrtobool(buf, &numa_demotion_enabled); + if (ret) + return ret; + + return count; +} + +static struct kobj_attribute numa_demotion_enabled_attr =3D + __ATTR(demotion_enabled, 0644, numa_demotion_enabled_show, + numa_demotion_enabled_store); + +static struct attribute *numa_attrs[] =3D { + &numa_demotion_enabled_attr.attr, + NULL, +}; + +static const struct attribute_group numa_attr_group =3D { + .attrs =3D numa_attrs, +}; + +static int __init numa_init_sysfs(void) +{ + int err; + struct kobject *numa_kobj; + + numa_kobj =3D kobject_create_and_add("numa", mm_kobj); + if (!numa_kobj) { + pr_err("failed to create numa kobject\n"); + return -ENOMEM; + } + err =3D sysfs_create_group(numa_kobj, &numa_attr_group); + if (err) { + pr_err("failed to register numa group\n"); + goto delete_obj; + } + return 0; + +delete_obj: + kobject_put(numa_kobj); + return err; +} +subsys_initcall(numa_init_sysfs); +#endif /* CONFIG_SYSFS */ +#endif diff --git a/mm/migrate.c b/mm/migrate.c index 6a1597c92261..5d7fb417edbf 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -2562,64 +2562,6 @@ void __init migrate_on_reclaim_init(void) set_migration_target_nodes(); cpus_read_unlock(); } +#endif /* CONFIG_NUMA */ =20 -bool numa_demotion_enabled =3D false; - -#ifdef CONFIG_SYSFS -static ssize_t numa_demotion_enabled_show(struct kobject *kobj, - struct kobj_attribute *attr, char *buf) -{ - return sysfs_emit(buf, "%s\n", - numa_demotion_enabled ? "true" : "false"); -} - -static ssize_t numa_demotion_enabled_store(struct kobject *kobj, - struct kobj_attribute *attr, - const char *buf, size_t count) -{ - ssize_t ret; - - ret =3D kstrtobool(buf, &numa_demotion_enabled); - if (ret) - return ret; - - return count; -} - -static struct kobj_attribute numa_demotion_enabled_attr =3D - __ATTR(demotion_enabled, 0644, numa_demotion_enabled_show, - numa_demotion_enabled_store); - -static struct attribute *numa_attrs[] =3D { - &numa_demotion_enabled_attr.attr, - NULL, -}; - -static const struct attribute_group numa_attr_group =3D { - .attrs =3D numa_attrs, -}; - -static int __init numa_init_sysfs(void) -{ - int err; - struct kobject *numa_kobj; =20 - numa_kobj =3D kobject_create_and_add("numa", mm_kobj); - if (!numa_kobj) { - pr_err("failed to create numa kobject\n"); - return -ENOMEM; - } - err =3D sysfs_create_group(numa_kobj, &numa_attr_group); - if (err) { - pr_err("failed to register numa group\n"); - goto delete_obj; - } - return 0; - -delete_obj: - kobject_put(numa_kobj); - return err; -} -subsys_initcall(numa_init_sysfs); -#endif /* CONFIG_SYSFS */ -#endif /* CONFIG_NUMA */ diff --git a/mm/vmscan.c b/mm/vmscan.c index b2b1431352dc..224de380ac88 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -49,6 +49,7 @@ #include #include #include +#include =20 #include #include --=20 2.37.2