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]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6E8D9CAC5AE for ; Wed, 24 Sep 2025 18:41:28 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id C91C88E000C; Wed, 24 Sep 2025 14:41:27 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C70398E0001; Wed, 24 Sep 2025 14:41:27 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id ABC1B8E000C; Wed, 24 Sep 2025 14:41:27 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 9CB2E8E0001 for ; Wed, 24 Sep 2025 14:41:27 -0400 (EDT) Received: from smtpin03.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 6B5791DA553 for ; Wed, 24 Sep 2025 18:41:27 +0000 (UTC) X-FDA: 83925011814.03.4BB5677 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by imf04.hostedemail.com (Postfix) with ESMTP id 0B5454000B for ; Wed, 24 Sep 2025 18:41:24 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=ibm.com header.s=pp1 header.b=ROqbQPZT; spf=pass (imf04.hostedemail.com: domain of donettom@linux.ibm.com designates 148.163.158.5 as permitted sender) smtp.mailfrom=donettom@linux.ibm.com; dmarc=pass (policy=none) header.from=ibm.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1758739285; 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-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=g7NMKG3P1GnVF83n8IqcwD90suKkIINheAGyUF6sOvw=; b=h+Vgkp77qTQJ61bvoHezLQL3b9UVSexvst7NXke4Hx5ayzAim7m3TOiiurmbMVOkHbyv67 LiTC65Ali49cWyvx/wDbypaBnJomHSkLmHFRsIiOH/fYDg5O1CB/MX1mw/bR0n3OW8uR2M bk/qD2tbSeicl0i9Yaq/dvbfh0+/O88= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1758739285; a=rsa-sha256; cv=none; b=fBUoi/V515DJZPqLOntvzrcgss1/12sgmPUOt7+vNyi1+4kWUlSqCt8AZglAI3HLlz2uH5 lLBiHCzC1oeQecEuGyiXGCJe0lq3liwJZlbO/5HEUGFMJ9UYuuUSelCub3fEKNaMD9xh0x 1ZV8Qs7CmhP/MMeSOxpegj9hZPRz+xU= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=ibm.com header.s=pp1 header.b=ROqbQPZT; spf=pass (imf04.hostedemail.com: domain of donettom@linux.ibm.com designates 148.163.158.5 as permitted sender) smtp.mailfrom=donettom@linux.ibm.com; dmarc=pass (policy=none) header.from=ibm.com Received: from pps.filterd (m0360072.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 58OBedJF003988; Wed, 24 Sep 2025 18:41:16 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=g7NMKG3P1GnVF83n8 IqcwD90suKkIINheAGyUF6sOvw=; b=ROqbQPZTh262h7/H0tv+LjTNuTtAv/rbA bPfyKQZ/5LjZyvyJn5bC1mCUl9s7snF0SFoJ1vcxNVTKiEW1P9yDZDoJKdMYoxEo nW7yb6VG+NxQfoS3TdiTjQ7PfAW1O4S8v43+Peh/xoZpvgpXs4BsCQCB8MFScQRN 27Ioe2OMl/srIS5Kk96X33Z3POCQtyfE6kEHyymUUbI7bNbxOC0CV7NQ34pgLQJ5 jplnFNxcJ3XhfyIvi8cwXaZEpOmcab5/REgmJdWbJ9NyFzce/k7inSi5N8irQKyW jgLex2ODbrb4dTsiKxjboB/fnQWIfJX6AATFVdAdxsEgvEE8+6qqA== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 499kwyrjxc-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 24 Sep 2025 18:41:16 +0000 (GMT) Received: from m0360072.ppops.net (m0360072.ppops.net [127.0.0.1]) by pps.reinject (8.18.1.12/8.18.0.8) with ESMTP id 58OIfBNZ031885; Wed, 24 Sep 2025 18:41:15 GMT Received: from ppma11.dal12v.mail.ibm.com (db.9e.1632.ip4.static.sl-reverse.com [50.22.158.219]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 499kwyrjx8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 24 Sep 2025 18:41:15 +0000 (GMT) Received: from pps.filterd (ppma11.dal12v.mail.ibm.com [127.0.0.1]) by ppma11.dal12v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 58OHWvBa030356; Wed, 24 Sep 2025 18:41:14 GMT Received: from smtprelay04.fra02v.mail.ibm.com ([9.218.2.228]) by ppma11.dal12v.mail.ibm.com (PPS) with ESMTPS id 49a9a19u1w-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 24 Sep 2025 18:41:14 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay04.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 58OIfBmf18285018 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 24 Sep 2025 18:41:11 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1498E20043; Wed, 24 Sep 2025 18:41:11 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D7C1920040; Wed, 24 Sep 2025 18:41:06 +0000 (GMT) Received: from li-218185cc-29b5-11b2-a85c-9a1300ae2e6e.ibm.com.com (unknown [9.39.28.85]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 24 Sep 2025 18:41:06 +0000 (GMT) From: Donet Tom To: Andrew Morton , David Hildenbrand , Oscar Salvador Cc: Ritesh Harjani , Aboorva Devarajan , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Madhavan Srinivasan , linuxppc-dev@lists.ozlabs.org, Christophe Leroy , Peter Zijlstra , Ingo Molnar , x86@kernel.org, Greg Kroah-Hartman , Danilo Krummrich , Mike Rapoport , Dave Jiang , Donet Tom Subject: [PATCH 1/2] drivers/base/node: merge register_one_node() and register_node() to a single function. Date: Thu, 25 Sep 2025 00:10:50 +0530 Message-ID: <40257b5228dec05e5b252f02438608eb8d681a2d.1758736423.git.donettom@linux.ibm.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=J5Cq7BnS c=1 sm=1 tr=0 ts=68d43b4c cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=yJojWOMRYYMA:10 a=VnNF1IyMAAAA:8 a=TH3b8Etr9zJLuk16028A:9 X-Proofpoint-GUID: GtqF5kG7jmuG2jGJ2XQ8Rrmxy_do6971 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTIwMDAxNSBTYWx0ZWRfX6lEmAfAwOPjx Np6gukIrwu29sEdWzBwjcXj/jrK/3v+PmXgylMBmQ58aTgOI5vcjya0Rxyn7nVMoGP0Q+qRJXy4 Pdok1avT99xuu80srjiW/DL6nEsRxoYt1qrBP/qcr6ch2R9dUPqBRO1IZo3ifGG+rchFsSvJfQc vcGNkX0FX20lh/o6/0gbbCkn7bo3+eZbnUeFRuyWoIVX4JAgo6eZEjknMKptT+6Ka+Mq+M15nHa sc5bpkh3SVFUU3m5Bpz32bGIbiggU93e/6spAvZ2xQaL/FVkUA2tDsaSmB5X5nAMmmT7zb/39lR LcpTzo8i6fD8QW5VgTgqjstlMuP+YiqfUml6DSiXqDaDGPmm3PSVdndg3dZLOZ22gcAqGoRt1iv E0BNtbg6 X-Proofpoint-ORIG-GUID: AdG4ppAxKg-qqXelHyT3riJZz9eaUe29 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-24_04,2025-09-24_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 malwarescore=0 spamscore=0 bulkscore=0 phishscore=0 clxscore=1011 adultscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2509200015 X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 0B5454000B X-Stat-Signature: f3r6juxrnwr5hpnd3mz9hrhao7as5aio X-Rspam-User: X-HE-Tag: 1758739284-337152 X-HE-Meta: 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 2iqkM3Xq TDskhBV+xW+WXOuZGU3vN4aAyZz1epnFBGaaSAK/IB5wHyFI7rSzJnMx92sccDGxxMrCGOg69XUvGg6QZrRuPhhb1pqUwEB6G9VUoHKElwJVXXuf1ipfpFbfz13R39Rv8VHlsaLpQpvK+g7piaBjom3W95qpRcNykb8fJlDftUHP13N3I50gYGai+PaFho5gvfF2a3JSS6ojyyL50+IKr7AY98fXoJZEQDM9Wrn3AY71pVR3ry56n11vvs0iuP9OIvU76v2Ygx0i+AzQr3XITwC+IQ2f1JIrGT+t7tZpm37swCepTb9eHWIKdRdkVjpOowIe48Mx8da6wdi8WIBIuCkqof1voSjqLPAb2Lg88QAuQBh8Z1hvbjBIgq3/vy6zrJkySXhD+Gci5IDyuflK91TbuCTU0tfwUpdF5/3gXfwSP8lIszEkOkoafUWKEHFTJ0RzP X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: register_one_node() and register_node() are small functions. This patch merges them into a single function named register_node() to improve code readability. No functional changes are introduced. Signed-off-by: Donet Tom --- arch/powerpc/platforms/pseries/pci_dlpar.c | 2 +- arch/x86/mm/numa.c | 4 +- drivers/base/node.c | 52 +++++++++------------- include/linux/node.h | 4 +- mm/memory_hotplug.c | 4 +- mm/mm_init.c | 2 +- 6 files changed, 28 insertions(+), 40 deletions(-) diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c index aeb8633a3d00..8c77ec7980de 100644 --- a/arch/powerpc/platforms/pseries/pci_dlpar.c +++ b/arch/powerpc/platforms/pseries/pci_dlpar.c @@ -29,7 +29,7 @@ struct pci_controller *init_phb_dynamic(struct device_node *dn) nid = of_node_to_nid(dn); if (likely((nid) >= 0)) { if (!node_online(nid)) { - if (register_one_node(nid)) { + if (register_node(nid)) { pr_err("PCI: Failed to register node %d\n", nid); } else { update_numa_distance(dn); diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c index c24890c40138..7a97327140df 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -262,7 +262,7 @@ void __init init_gi_nodes(void) * bringup_nonboot_cpus * cpu_up * __try_online_node - * register_one_node + * register_node * because node_subsys is not initialized yet. * TODO remove dependency on node_online */ @@ -303,7 +303,7 @@ void __init init_cpu_to_node(void) * bringup_nonboot_cpus * cpu_up * __try_online_node - * register_one_node + * register_node * because node_subsys is not initialized yet. * TODO remove dependency on node_online */ diff --git a/drivers/base/node.c b/drivers/base/node.c index 6b6e55a98b79..eab620e29c78 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -638,33 +638,6 @@ static void node_device_release(struct device *dev) kfree(to_node(dev)); } -/* - * register_node - Setup a sysfs device for a node. - * @num - Node number to use when creating the device. - * - * Initialize and register the node device. - */ -static int register_node(struct node *node, int num) -{ - int error; - - node->dev.id = num; - node->dev.bus = &node_subsys; - node->dev.release = node_device_release; - node->dev.groups = node_dev_groups; - error = device_register(&node->dev); - - if (error) { - put_device(&node->dev); - } else { - hugetlb_register_node(node); - compaction_register_node(node); - reclaim_register_node(node); - } - - return error; -} - /** * unregister_node - unregister a node device * @node: node going away @@ -869,7 +842,13 @@ void register_memory_blocks_under_node_hotplug(int nid, unsigned long start_pfn, } #endif /* CONFIG_MEMORY_HOTPLUG */ -int register_one_node(int nid) +/* + * register_node - Setup a sysfs device for a node. + * @nid - Node number to use when creating the device. + * + * Initialize and register the node device. + */ +int register_node(int nid) { int error; int cpu; @@ -880,14 +859,23 @@ int register_one_node(int nid) return -ENOMEM; INIT_LIST_HEAD(&node->access_list); - node_devices[nid] = node; - error = register_node(node_devices[nid], nid); + node->dev.id = nid; + node->dev.bus = &node_subsys; + node->dev.release = node_device_release; + node->dev.groups = node_dev_groups; + + error = device_register(&node->dev); if (error) { - node_devices[nid] = NULL; + put_device(&node->dev); return error; } + node_devices[nid] = node; + hugetlb_register_node(node); + compaction_register_node(node); + reclaim_register_node(node); + /* link cpu under this node */ for_each_present_cpu(cpu) { if (cpu_to_node(cpu) == nid) @@ -980,7 +968,7 @@ void __init node_dev_init(void) * to already created cpu devices. */ for_each_online_node(i) { - ret = register_one_node(i); + ret = register_node(i); if (ret) panic("%s() failed to add node: %d\n", __func__, ret); } diff --git a/include/linux/node.h b/include/linux/node.h index 2c7529335b21..4dcf876cd0b4 100644 --- a/include/linux/node.h +++ b/include/linux/node.h @@ -168,7 +168,7 @@ static inline int hotplug_node_notifier(notifier_fn_t fn, int pri) #ifdef CONFIG_NUMA extern void node_dev_init(void); /* Core of the node registration - only memory hotplug should use this */ -extern int register_one_node(int nid); +extern int register_node(int nid); extern void unregister_one_node(int nid); extern int register_cpu_under_node(unsigned int cpu, unsigned int nid); extern int unregister_cpu_under_node(unsigned int cpu, unsigned int nid); @@ -181,7 +181,7 @@ extern int register_memory_node_under_compute_node(unsigned int mem_nid, static inline void node_dev_init(void) { } -static inline int register_one_node(int nid) +static inline int register_node(int nid) { return 0; } diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 0be83039c3b5..6c050d867031 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1311,7 +1311,7 @@ static int __try_online_node(int nid, bool set_node_online) if (set_node_online) { node_set_online(nid); - ret = register_one_node(nid); + ret = register_node(nid); BUG_ON(ret); } out: @@ -1542,7 +1542,7 @@ int add_memory_resource(int nid, struct resource *res, mhp_t mhp_flags) goto error_memblock_remove; if (ret) { node_set_online(nid); - ret = register_one_node(nid); + ret = register_node(nid); if (WARN_ON(ret)) { node_set_offline(nid); goto error_memblock_remove; diff --git a/mm/mm_init.c b/mm/mm_init.c index df614556741a..e1a19a3dadd7 100644 --- a/mm/mm_init.c +++ b/mm/mm_init.c @@ -1909,7 +1909,7 @@ void __init free_area_init(unsigned long *max_zone_pfn) free_area_init_node(nid); /* - * No sysfs hierarchy will be created via register_one_node() + * No sysfs hierarchy will be created via register_node() *for memory-less node because here it's not marked as N_MEMORY *and won't be set online later. The benefit is userspace *program won't be confused by sysfs files/directories of -- 2.51.0