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 E37A9C43458 for ; Tue, 7 Jul 2026 13:46:05 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id CCA7D6B00A5; Tue, 7 Jul 2026 09:46:04 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C7AEE6B00A6; Tue, 7 Jul 2026 09:46:04 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id BB8436B00A7; Tue, 7 Jul 2026 09:46:04 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 9C9A66B00A5 for ; Tue, 7 Jul 2026 09:46:04 -0400 (EDT) Received: from smtpin12.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 2C26E1C39D1 for ; Tue, 7 Jul 2026 13:46:04 +0000 (UTC) X-FDA: 84962104248.12.592F647 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf15.hostedemail.com (Postfix) with ESMTP id 7093AA0005 for ; Tue, 7 Jul 2026 13:46:02 +0000 (UTC) Authentication-Results: imf15.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b="l/Co+LzW"; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf15.hostedemail.com: domain of david@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=david@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1783431962; 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=6j+iHhuiu0EvX2FuvbrpgVLF9g7qDAk982La+RkgbHo=; b=Bi94YxFBkDG0uE61VVFqBIohBOHuqgp65kNClTsQ8DzAQan3MAU7tkWjiXzIaRBoI52MVh BUrJMiZf8KAq7YOlWuwMK27aQoZQpJsVlfL8Z8g+2Wammlj6SNybMhg86X6deTJrbtgPfT /6qT/CRcisoDX4iyeU2/JS7WMRMaYoE= ARC-Authentication-Results: i=1; imf15.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b="l/Co+LzW"; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf15.hostedemail.com: domain of david@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=david@kernel.org ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1783431962; b=P27QiBlpyMACWgbfihDxgk5gCxIPhhtW70SYy+TbB+x5Wc8mURH2i25NG0d+uU6hCqLSv9 XQPzBPti6mVVpS3A6KVvsogPgqfTt77sgvO/tReJ9/HZ3TUw8LdkAxPP8DboLJjzm9RqUT PYea8cYp/rvvd65l/n5InOXOmIYvOFE= Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id C30C543ABE; Tue, 7 Jul 2026 13:46:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 241471F00A3E; Tue, 7 Jul 2026 13:45:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783431961; bh=6j+iHhuiu0EvX2FuvbrpgVLF9g7qDAk982La+RkgbHo=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=l/Co+LzW+6cqyQ1rPBAG5Hlp/dHcizMJr7FXhAOso+ileGfMkbIBqNNiUhFlo0qB5 tmzV4ONg8hQFSqYUq/CwwqkSPHsjO9bSCEx6PiDwPVHGd0cw7JBtjweVaTyOuSr7es 7z+NT60Q+t3Y5dgi4ZenyqNkirgs4M+eloaYeHx77IyuxWX6uI+IS7hxCkTORXsMZd nmtzKMwN0M8YaoU1MH7fhKazduAaSfI5bhVJYUNeTCQ0zbOEPR6pgQHBtvNitlIygK SHzhUZqrWrqb/uWS1V6d47XzNJ+0EZ/3Fk4gaEUZcCBd6mkAgFkKEWLQjXtbD8RVXp z3DuDMxzj1ceg== Message-ID: Date: Tue, 7 Jul 2026 15:45:58 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/2] mm/mm_init: drop overlap_memmap_init() To: Mike Rapoport , linux-mm@kvack.org Cc: Andrew Morton , Taku Izumi , Wei Yang , Yuan Liu , linux-kernel@vger.kernel.org References: <20260630072212.624305-1-rppt@kernel.org> <20260630072212.624305-3-rppt@kernel.org> 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: <20260630072212.624305-3-rppt@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 7093AA0005 X-Stat-Signature: 8xbxbhmtgqb4z6x9n7hmmb3omuicuz8f X-HE-Tag: 1783431962-627254 X-HE-Meta: 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 q7TvL+/a j8tlL+mcRdenHQjoB6aRHWGxQEJF9ONoTUMnNYRrI049ZlxMY5UQl3OWrtQR9WeCgGxl9HFD5edlLq+UCKTXucFqzO+PTf5KYjPZhuUN6AvraX8Jdr+EMmazMeEKKVT+IkJH+sSwGFkLu+d/C8dnquBfDWx+7g+9o2UVebZL5KDG0lIPOGmlTerHsD8RxBDDnx4PGFP59uffCcUnm8Tv1MnpW4BwQtlIdcZ0q509IafCYO1Z72RKT7g/P2Oi6ttlUWlMjcUMP8lszJxLXqGGJ4MxAZjyxY8fkR/BTNG32gukTPxIGaeEuwL/XcOVUE4BX9/YcbXSvmZhO8ju+sKBJtu/rBn+2wKM46eSuLzff36DcRGded6gwIoM7DMdaVsOUGQ3rLskg2A82SnDPKuBjaC0si9g37gGdSvLvMDRlkNRRAbjKG4/OgtaxrT5Tp1W6XJNqp/5xKrb94ow= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 6/30/26 09:22, Mike Rapoport wrote: > From: "Mike Rapoport (Microsoft)" > > When ZONE_NORMAL and ZONE_MOVABLE could overlap because kernelcore=mirror > didn't reduce the span of ZONE_NORMAL, initialization of the memory map had > to skip overlapping pages during initialization of ZONE_MOVABLE to avoid > double initialization of the same struct pages. > > Since kernelcore=mirror works now the same way as other variants of > kernelcore=/movablecore=, and adjusts the span of ZONE_NORMAL, there can't > be an overlap between ZONE_NORMAL and ZONE_MOVABLE. > > Remove overlap_memmap_init(). > > Co-developed-by: Wei Yang > Signed-off-by: Wei Yang > Signed-off-by: Mike Rapoport (Microsoft) > --- Reviewed-by: David Hildenbrand (Arm) -- Cheers, David