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 2DC2AC79F8C for ; Wed, 9 Sep 2026 10:01:39 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id B899F6B00A4; Wed, 9 Sep 2026 06:01:36 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B3ABB6B00A5; Wed, 9 Sep 2026 06:01:36 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A503E6B00A6; Wed, 9 Sep 2026 06:01:36 -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 82EF86B00A4 for ; Wed, 9 Sep 2026 06:01:36 -0400 (EDT) Received: from smtpin27.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay06.hostedemail.com (Postfix) with ESMTP id CEDE3A38BE for ; Wed, 9 Sep 2026 10:01:35 +0000 (UTC) X-FDA: 85193781750.27.21EFCB4 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf04.hostedemail.com (Postfix) with ESMTP id 0DC7240013 for ; Wed, 9 Sep 2026 10:01:33 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=CPTlmLpd; spf=pass (imf04.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1788948094; b=gRszyqTk5Yr0GiEH+X4TqN2rOsFrzyNKniWkqDxRHWsB/V76ebLuN1OIa4Kja+cp3b6Lrv ZP1GLr0CI6cD4YhG0F80C2YAYJhJcPij1MvfqAi29wRVpqeysm9JuF6kRgs21I6bAYYkYe GJaJwArsNR1WmDqfWlPR4t6EGyoJ6Lo= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=CPTlmLpd; spf=pass (imf04.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1788948094; 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:in-reply-to:references:references:dkim-signature; bh=50crNXE5RPe0jaXCbPjDytOJ0kKcHrcQdEPYCvw1FdI=; b=TMXshe+kfmZJ5SlUEHHhlktjaqlokUxG8EZCetGiDjPrumKGPm/Op65HavWugkBdQ8Y4jq qcs2fdVzYbzYfreue6XrUVXAKeQuTmmNOvrCB4Roer27dJR8178nNqHLmWAak9PyTppnE9 iUfoEJ6jR8FjBJvjZNgArSZfWKTipr0= Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 3A48E6022A; Wed, 9 Sep 2026 10:01:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8FF501F00A3A; Wed, 9 Sep 2026 10:01:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788948092; bh=50crNXE5RPe0jaXCbPjDytOJ0kKcHrcQdEPYCvw1FdI=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=CPTlmLpdtRe13Z/QNkefitntnzkSGJ0UFa/dUjSKGCx8ubF3aINeJRYUIvneVno7u Nii27xkpOI5cQ3jjji1qFPnENW550TEBdl8WssIPiTFo3X+Ra3xvOSspwGhqd3gMhV xDO2U0kQFtvWxWaxRcWJJ3Tt6gKvtFFTNogaEoOeGsRA6ZPZDl6TP7bcshjLV1ks8C bpFgKFI9LVMaFK/5nUv2V0qyPOUDQs23NImXg50CxqbIf7lnNr1W6/wUSZUEhWJRsb ZpMW5w9cit1n0QySPbq7Lp25lW4VsATDNYQ30FviV2FVuS0K1dKQ+9iQYf5x13Ah2h 7mdgruxK3kRhA== Message-ID: Date: Wed, 9 Sep 2026 12:01:27 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 12/17] mm/sparse: inline usemap allocation into sparse_init_nid() To: Muchun Song , Andrew Morton , Oscar Salvador Cc: Mike Rapoport , Vlastimil Babka , Lorenzo Stoakes , Michal Hocko , David Laight , "Liam R . Howlett" , Suren Baghdasaryan , Qi Zheng , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Muchun Song References: <20260825084608.47437-1-songmuchun@bytedance.com> <20260825084608.47437-13-songmuchun@bytedance.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzS5EYXZpZCBIaWxk ZW5icmFuZCAoQ3VycmVudCkgPGRhdmlkQGtlcm5lbC5vcmc+wsGQBBMBCAA6AhsDBQkmWAik AgsJBBUKCQgCFgICHgUCF4AWIQQb2cqtc1xMOkYN/MpN3hD3AP+DWgUCaYJt/AIZAQAKCRBN 3hD3AP+DWriiD/9BLGEKG+N8L2AXhikJg6YmXom9ytRwPqDgpHpVg2xdhopoWdMRXjzOrIKD g4LSnFaKneQD0hZhoArEeamG5tyo32xoRsPwkbpIzL0OKSZ8G6mVbFGpjmyDLQCAxteXCLXz ZI0VbsuJKelYnKcXWOIndOrNRvE5eoOfTt2XfBnAapxMYY2IsV+qaUXlO63GgfIOg8RBaj7x 3NxkI3rV0SHhI4GU9K6jCvGghxeS1QX6L/XI9mfAYaIwGy5B68kF26piAVYv/QZDEVIpo3t7 /fjSpxKT8plJH6rhhR0epy8dWRHk3qT5tk2P85twasdloWtkMZ7FsCJRKWscm1BLpsDn6EQ4 jeMHECiY9kGKKi8dQpv3FRyo2QApZ49NNDbwcR0ZndK0XFo15iH708H5Qja/8TuXCwnPWAcJ DQoNIDFyaxe26Rx3ZwUkRALa3iPcVjE0//TrQ4KnFf+lMBSrS33xDDBfevW9+Dk6IISmDH1R HFq2jpkN+FX/PE8eVhV68B2DsAPZ5rUwyCKUXPTJ/irrCCmAAb5Jpv11S7hUSpqtM/6oVESC 3z/7CzrVtRODzLtNgV4r5EI+wAv/3PgJLlMwgJM90Fb3CB2IgbxhjvmB1WNdvXACVydx55V7 LPPKodSTF29rlnQAf9HLgCphuuSrrPn5VQDaYZl4N/7zc2wcWM7BTQRVy5+RARAA59fefSDR 9nMGCb9LbMX+TFAoIQo/wgP5XPyzLYakO+94GrgfZjfhdaxPXMsl2+o8jhp/hlIzG56taNdt VZtPp3ih1AgbR8rHgXw1xwOpuAd5lE1qNd54ndHuADO9a9A0vPimIes78Hi1/yy+ZEEvRkHk /kDa6F3AtTc1m4rbbOk2fiKzzsE9YXweFjQvl9p+AMw6qd/iC4lUk9g0+FQXNdRs+o4o6Qvy iOQJfGQ4UcBuOy1IrkJrd8qq5jet1fcM2j4QvsW8CLDWZS1L7kZ5gT5EycMKxUWb8LuRjxzZ 3QY1aQH2kkzn6acigU3HLtgFyV1gBNV44ehjgvJpRY2cC8VhanTx0dZ9mj1YKIky5N+C0f21 zvntBqcxV0+3p8MrxRRcgEtDZNav+xAoT3G0W4SahAaUTWXpsZoOecwtxi74CyneQNPTDjNg azHmvpdBVEfj7k3p4dmJp5i0U66Onmf6mMFpArvBRSMOKU9DlAzMi4IvhiNWjKVaIE2Se9BY FdKVAJaZq85P2y20ZBd08ILnKcj7XKZkLU5FkoA0udEBvQ0f9QLNyyy3DZMCQWcwRuj1m73D sq8DEFBdZ5eEkj1dCyx+t/ga6x2rHyc8Sl86oK1tvAkwBNsfKou3v+jP/l14a7DGBvrmlYjO 59o3t6inu6H7pt7OL6u6BQj7DoMAEQEAAcLBfAQYAQgAJgIbDBYhBBvZyq1zXEw6Rg38yk3e EPcA/4NaBQJonNqrBQkmWAihAAoJEE3eEPcA/4NaKtMQALAJ8PzprBEXbXcEXwDKQu+P/vts IfUb1UNMfMV76BicGa5NCZnJNQASDP/+bFg6O3gx5NbhHHPeaWz/VxlOmYHokHodOvtL0WCC 8A5PEP8tOk6029Z+J+xUcMrJClNVFpzVvOpb1lCbhjwAV465Hy+NUSbbUiRxdzNQtLtgZzOV Zw7jxUCs4UUZLQTCuBpFgb15bBxYZ/BL9MbzxPxvfUQIPbnzQMcqtpUs21CMK2PdfCh5c4gS sDci6D5/ZIBw94UQWmGpM/O1ilGXde2ZzzGYl64glmccD8e87OnEgKnH3FbnJnT4iJchtSvx yJNi1+t0+qDti4m88+/9IuPqCKb6Stl+s2dnLtJNrjXBGJtsQG/sRpqsJz5x1/2nPJSRMsx9 5YfqbdrJSOFXDzZ8/r82HgQEtUvlSXNaXCa95ez0UkOG7+bDm2b3s0XahBQeLVCH0mw3RAQg r7xDAYKIrAwfHHmMTnBQDPJwVqxJjVNr7yBic4yfzVWGCGNE4DnOW0vcIeoyhy9vnIa3w1uZ 3iyY2Nsd7JxfKu1PRhCGwXzRw5TlfEsoRI7V9A8isUCoqE2Dzh3FvYHVeX4Us+bRL/oqareJ CIFqgYMyvHj7Q06kTKmauOe4Nf0l0qEkIuIzfoLJ3qr5UyXc2hLtWyT9Ir+lYlX9efqh7mOY qIws/H2t In-Reply-To: <20260825084608.47437-13-songmuchun@bytedance.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 0DC7240013 X-Rspam-User: X-Stat-Signature: ihiihp6tm4rtnd48n63eowb3tukjqkei X-HE-Tag: 1788948093-951137 X-HE-Meta: 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 ePK/CH3o j2YE3t/RuWIAaOoBEqj4gq9TMBCyMGpMaYDpF6Doq7JmrN4QbuHlTi+S2mYv7DU1QeDZtFuWb4+kN1NqO+aCSn7QgcQeH4vWpdDGWQEY05of/o38/HvCMLQVqv9x4GGtRLGDoun562Ly1VWdS+Njd9A9PAHX1LLMMJ1Vft6pMsP0w0kuZ85K8vzgkgic9UH0LzTZXawje414Q7icd2Yh8WXDIF3X5x/Nnc3PkPyzL8cvUJmv36nZrfaiDc3qes9l8INibO4yJ0GX1e0e5wnlHpVVQtD9VATVGaz/GLxl6haU5SQNKgVAr2ly2tPEfG5bUZ2aWWhG7KfrWgMlsrj+TLOHw8a7709Gxvyn0wVYUt/h1D8dCuIrLqdJ9H08GST3g/kX1c+TUbudNQQsPNPE0czjsC08qslXr7zQ4v75dYE26yuo= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 8/25/26 10:46, Muchun Song wrote: > After removing SPARSEMEM_VMEMMAP_PREINIT, sparse_init_nid() no longer > needs the transient sparse_usagebuf state and its helper wrappers. > > Allocate the usemap buffer directly in sparse_init_nid(), pass it to > sparse_init_one_section(), and drop sparse_usage_init(), > sparse_usage_fini(), and sparse_init_early_section(). > > Signed-off-by: Muchun Song > Acked-by: Mike Rapoport (Microsoft) > --- > v2: > - Collect Acked-by from Mike Rapoport > --- Acked-by: David Hildenbrand (Arm) -- Cheers, David