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Thu, 22 May 2025 11:46:35 GMT Received: from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DFDB958055; Thu, 22 May 2025 11:46:34 +0000 (GMT) Received: from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 31F5F58054; Thu, 22 May 2025 11:46:30 +0000 (GMT) Received: from [9.109.245.113] (unknown [9.109.245.113]) by smtpav06.wdc07v.mail.ibm.com (Postfix) with ESMTP; Thu, 22 May 2025 11:46:29 +0000 (GMT) Message-ID: <202c4509-27dd-4b31-8959-5679472e0670@linux.ibm.com> Date: Thu, 22 May 2025 17:16:28 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 3/4] drivers/base/node: Remove register_memory_blocks_under_node() function call from register_one_node To: Mike Rapoport , Oscar Salvador Cc: David Hildenbrand , Andrew Morton , Zi Yan , Greg Kroah-Hartman , Ritesh Harjani , linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Rafael J . Wysocki" , Danilo Krummrich , Jonathan Cameron , Alison Schofield , Yury Norov , Dave Jiang References: Content-Language: en-US From: Donet Tom In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTIyMDExNyBTYWx0ZWRfX32LmqP1b6MdW t9WTHY7jZLdQ70WhK8t60XmMhAhYUlOv5VsXyo72KgRH0ucFT5hlqkFW1D/csPBFj3M5LJv4WzO fhf8yIGc4KQx3e7m9De5JQWKdwJ+PP/FZL6w2t0fBwEh5DCLy2759JOQSTC1FI/y7tRd2MyT47W Eo4ukGmtCkl54joY+zBsNQq1onpxyFG38RAJ6u3RlhJiOl9NQPCVyd2NSdC+7LNbf42P5RkGlmp IaTT91ULdvcVze2ZBuCkYltEUdjP1vbpn2whjTIiM2u7wwt5WtAHH531ghLCfXIjgLI5tKOEf2B UI657clG4cWpy12dWJKq6KwaLT5hhvApnjN8qumqcyickHroD9vmKuJQcFgmVYhKPCKAUQL6Nk6 eCg7+0Dt7oTB+YbSfgI1809729crJX0DXj6Gjrdj69bTgmQ2zv0w0e6Ms8DR5umbunek44po X-Proofpoint-GUID: vFq3w004PkFqsykFxikIGw4yWojaGNex X-Proofpoint-ORIG-GUID: 23OTfTPW7pH-OmJqtMcxouoOXgdq5BRE X-Authority-Analysis: v=2.4 cv=HcAUTjE8 c=1 sm=1 tr=0 ts=682f0e9d cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=IkcTkHD0fZMA:10 a=dt9VzEwgFbYA:10 a=oDHSpl0J-XFlJIyCyv0A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-22_06,2025-05-22_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 mlxscore=0 suspectscore=0 adultscore=0 impostorscore=0 lowpriorityscore=0 mlxlogscore=839 malwarescore=0 spamscore=0 phishscore=0 clxscore=1015 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505160000 definitions=main-2505220117 X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: B7F71100016 X-Stat-Signature: sxatdm4rphf3ct76p7rs1nabbyp58qai X-Rspam-User: X-HE-Tag: 1747914411-303861 X-HE-Meta: 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 v7SUv41u 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 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: On 5/22/25 4:01 PM, Mike Rapoport wrote: > On Thu, May 22, 2025 at 12:06:06PM +0200, Oscar Salvador wrote: >> On Thu, May 22, 2025 at 04:17:30AM -0500, Donet Tom wrote: >>> diff --git a/include/linux/node.h b/include/linux/node.h >>> index 5c763253c42c..6cf349c26780 100644 >>> --- a/include/linux/node.h >>> +++ b/include/linux/node.h >>> @@ -136,18 +136,8 @@ static inline int register_one_node(int nid) >>> { >>> int error = 0; >>> >>> - if (node_online(nid)) { >>> - struct pglist_data *pgdat = NODE_DATA(nid); >>> - unsigned long start_pfn = pgdat->node_start_pfn; >>> - unsigned long end_pfn = start_pfn + pgdat->node_spanned_pages; >>> - >>> + if (node_online(nid)) >>> error = __register_one_node(nid); >> Heh, remembering this code always brings me joy. >> >> After this patch, register_one_node() is only called from try_online_node(), right? >> Which, before calling in, explicitly sets the node online, so... we can get rid of >> the node_online() check unless I am missing something. > > I think you are right and a sensible follow up cleanup can be renaming > __register_one_node() to register_one_node() :) Thank you, Oscar and Mike. Yes, I agree—we can remove register_one_node() entirely. I will go ahead and remove register_one_node(), rename __register_one_node() to register_one_node(), and send the next revision. Thanks DOnet > >> -- >> Oscar Salvador >> SUSE Labs >>