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 056BBCDE00D for ; Thu, 25 Jun 2026 10:43:46 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id E72EF6B00DF; Thu, 25 Jun 2026 06:43:45 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id E241C6B00E0; Thu, 25 Jun 2026 06:43:45 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D3A6B6B00E1; Thu, 25 Jun 2026 06:43:45 -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 AD2106B00DF for ; Thu, 25 Jun 2026 06:43:45 -0400 (EDT) Received: from smtpin17.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 339DC1675C0 for ; Thu, 25 Jun 2026 10:43:45 +0000 (UTC) X-FDA: 84918099210.17.FDF0D70 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf04.hostedemail.com (Postfix) with ESMTP id 852DF40004 for ; Thu, 25 Jun 2026 10:43:43 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=jnsQuBr+; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf04.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1782384223; b=cmUDbF1Qf2ra9Np7f0pPBf/1T87wdx/pSfDcv3kZoDu04DZPSFOLW8R526d9rG8E2kZXzi e4giADLApnAcCFTQUVQvsyczEST+Df809RHZ3VQPAxXKxNOiVeiNFtU+jUaP46UZC+Rowc Rb6Fuq9s9hBeTasiItWj32mc15cGQwE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1782384223; 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=fJDvuQiOU7JiXyJC2kg1d3dB5krLdnpqD440e2m3J7M=; b=AzcYW88wX0Tif2raXJ+F9WSP7cJ9emvaM01KOJaY5z6A78DpDxh7uklI1HTEeyrvmFh8Yb 7+6HbF9JApIV6S95cINRP/bLEFACjXBR/jbHbO7+idI8kOVX8Hh1SuQTU9qeL329iuXwrc fdrA7clQLRud7xAscS/I50NWeEKvrUA= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=jnsQuBr+; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf04.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 0D15E600FC; Thu, 25 Jun 2026 10:43:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D178F1F000E9; Thu, 25 Jun 2026 10:43:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782384222; bh=fJDvuQiOU7JiXyJC2kg1d3dB5krLdnpqD440e2m3J7M=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=jnsQuBr+FAdh41iDC8stOiyep9XSEBAAUZTGvLkfm4ut7GFRat1rnCO7lYWbNsKDO nswSbhoAmx/TlD+Qs/7DWmpA2joVbUm9xpnc18US0MnJUXEfTWbJW8qbbYRzqnnzyD sIXgEQlg7VTvKzVWGAqf2j0xh+yYuwp3NEsZZus2jmUgYzwus9doqhn86aohEjX/dX DIhzhdXGKLDqCrG5WWRJUxlsjregwEDXAZJKWiSQO/itZrtYWAbcS/g2IXg4TtjbxQ 5wkVh22fQLFWrn3RLwHuetGqbeMPuHHdc4cXJVruGOvxDIk0V5C8W9q8EH3DIj8npN cUeXfa59mxJmQ== Message-ID: Date: Thu, 25 Jun 2026 12:43:39 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 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: <20260625073941.145014-1-rppt@kernel.org> <20260625073941.145014-3-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: <20260625073941.145014-3-rppt@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 852DF40004 X-Rspam-User: X-Stat-Signature: m1an1zqnhz39cjcca43dkaxwz3dezo74 X-HE-Tag: 1782384223-742249 X-HE-Meta: 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 uOm4qB8y sv/EOGmhi3jVHM2TsTWnR14oOu62SeTLY+Aiime7sa3hmKYD2oiGZgIuWjRgwzzQfVRxbuAN35LQ9I2rcmUMSfx87vBh9Sspok8HYOTFsqdu0kvRpvn+BZpyKKP8xBp3BolW/p6uVDu0TnIWvXJ2SeEi2XpAblkhO5b/SnUPRL2MyPI+u1j3nfBz+a069A71kb//ddySk3kat2oLNOwnPp+SGp3pmw2kwFo1SWydjXr4ctpc5+sZWpqAH10/0K/vkMWnWjXynoMmB1gB3jZN0mnFWS0rtpatAHCjfWArytGD6HWi90dsptH3g2aujZ4IOasYIte9UaAk8XKUNsGwkxGgkpsNfFXhBA2J3QFK+R6QImjd4/2kW3VztcWpM9fdQiNf8a/2mH+mAEHzAOR/uDIv13tf9undtQfvhDk7dwRLnVrjxNaGh8DkLbadpt0bHgyvTmQsilbfgARs= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 6/25/26 09:39, 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