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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EECB6CD4F26 for ; Tue, 12 May 2026 08:36:45 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4gF91S3WSkz2yY0; Tue, 12 May 2026 18:36:44 +1000 (AEST) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=195.135.223.131 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1778575004; cv=none; b=WOjEGUVqGc6Qi77mbgtTSapRMHE1rRmfn7nYQeftZlyQtEKfOEdKU40j69xEXJf2j99AVdFsRw9MoEkQX6/U1GaN2cdVAhrMXTGDfof1RyUC9SW45ou7/KxB3bT5nQed6NtfTuhMaHRjwSgP5eHhtVzWNjjcHhWVyEdcjI35e86AbpI495aBFVt1RdRv+iNxpsyfDn9FleB7UzC/a517Fg5Bki9AReTDLnnaU3zqZgrasj1pbAVcXMUnJB+iIpuJjQidBosk6oUDmL9bgzNzMGzkMQJQo6mADzLMCFsRyqsdsxHeAqUxVyXg0/KcKZwve1SiT5RAA/doZkQ07c2FFg== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1778575004; c=relaxed/relaxed; bh=qeFPBZ4MeGkkPKzW14cEWiFa5q6IagaEwfD13UPfREs=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ozs5Cl8HhHGezFGDrNaUcG2FT3nXa7n9BMv6yecC8DufLPMA0tTjgzGHw19TEVscs7f1BBmkFoQARAiall0n6F1wsLbXgebE3KaKGz+FDC+FCfTk7QWQvKe0L1z5L/vo/ji9UUdjT+inRbSIOleI01dOjUj5RFdLtXjZtFSA+NBpGmGWAtEOZO1AWWt19vGRGNwOlrCqyHFqVrBrBzXN0yNTqjIEORJalaBks+IvN6rJ5qd3wCcD9qUitaqsLNGwKYM0kF2eWj5YJNQg7zCpHQpIcB7rRV/PcggaN69+xf7Pp05b9/y3MObjKdkHYjoY9pof5PR46t6YZ21UJuycGA== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=suse.de; dkim=pass (1024-bit key; unprotected) header.d=suse.de header.i=@suse.de header.a=rsa-sha256 header.s=susede2_rsa header.b=OxABjhln; dkim=pass header.d=suse.de header.i=@suse.de header.a=ed25519-sha256 header.s=susede2_ed25519 header.b=L7RAFmAT; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.a=rsa-sha256 header.s=susede2_rsa header.b=DfeZqqoI; dkim=neutral header.d=suse.de header.i=@suse.de header.a=ed25519-sha256 header.s=susede2_ed25519 header.b=RPxKI++w; dkim-atps=neutral; spf=pass (client-ip=195.135.223.131; helo=smtp-out2.suse.de; envelope-from=osalvador@suse.de; receiver=lists.ozlabs.org) smtp.mailfrom=suse.de Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=suse.de header.i=@suse.de header.a=rsa-sha256 header.s=susede2_rsa header.b=OxABjhln; dkim=pass header.d=suse.de header.i=@suse.de header.a=ed25519-sha256 header.s=susede2_ed25519 header.b=L7RAFmAT; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.a=rsa-sha256 header.s=susede2_rsa header.b=DfeZqqoI; dkim=neutral header.d=suse.de header.i=@suse.de header.a=ed25519-sha256 header.s=susede2_ed25519 header.b=RPxKI++w; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=suse.de (client-ip=195.135.223.131; helo=smtp-out2.suse.de; envelope-from=osalvador@suse.de; receiver=lists.ozlabs.org) Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.223.131]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4gF91N1nvbz2ySl for ; Tue, 12 May 2026 18:36:40 +1000 (AEST) Received: from imap1.dmz-prg2.suse.org (unknown [10.150.64.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 6A4EA759BF; Tue, 12 May 2026 08:36:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1778574997; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=qeFPBZ4MeGkkPKzW14cEWiFa5q6IagaEwfD13UPfREs=; b=OxABjhlnjKoPqma/DwnCh9ytg1ymqNAtN/sQ9nMfbNfSVVpO1pG0mn4USLcQjgr7xWMLG5 Ty0gqf/eauSaqpxetjhSr93gpbJ6JoFGw/oPkqrbLXvnRauqb6yT/sovIsNiX4Eijxb8L6 RWGveaKnKqRXk6euaWwZp8DaWlifR9w= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1778574997; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=qeFPBZ4MeGkkPKzW14cEWiFa5q6IagaEwfD13UPfREs=; b=L7RAFmATKRu5J9cmTOV37Ybl7z/LrRpErCEHSPmy0c6dVYtgZaBPVe5X5XWAf6wbSYGAqU 020Pexc8OaYtLcCw== Authentication-Results: smtp-out2.suse.de; none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1778574996; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=qeFPBZ4MeGkkPKzW14cEWiFa5q6IagaEwfD13UPfREs=; b=DfeZqqoIT4ioiv6VHsaqCJQ4w2wWbcF+goDiMNScbajtWamahUFsQ4SLfSfRL9CKUtBvcT O5x17wC9q+mHZWkVkUVwWf1B5Z4G/yx6+cIMDNk9PjAy6GV/Pn7EU01aEEpC7ONl8MlaBU P3dMQd3mxA9QfMgOZEdbUZlA+NLdcHs= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1778574996; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=qeFPBZ4MeGkkPKzW14cEWiFa5q6IagaEwfD13UPfREs=; b=RPxKI++wuNeC0Ia2Hjv4TcWo1i+E7zCF1qOWkpMPqs3WUzf64ogYfQrRoR7xY0z14vKqI5 UxMNPadIOZomMPBw== Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 6E7FE593A9; Tue, 12 May 2026 08:36:35 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id P8jkGJPmAmrTAwAAD6G6ig (envelope-from ); Tue, 12 May 2026 08:36:35 +0000 Date: Tue, 12 May 2026 10:36:29 +0200 From: Oscar Salvador To: "David Hildenbrand (Arm)" Cc: "David S. Miller" , Andreas Larsson , Mike Rapoport , Andrew Morton , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Sven Schnelle , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-s390@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH 5/8] mm/bootmem_info: stop marking the pgdat as NODE_INFO Message-ID: References: <20260511-bootmem_info_prep-v1-0-3fb0be6fc688@kernel.org> <20260511-bootmem_info_prep-v1-5-3fb0be6fc688@kernel.org> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260511-bootmem_info_prep-v1-5-3fb0be6fc688@kernel.org> X-Spamd-Result: default: False [-4.30 / 50.00]; BAYES_HAM(-3.00)[99.99%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MISSING_XM_UA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; MIME_TRACE(0.00)[0:+]; RCPT_COUNT_TWELVE(0.00)[25]; FUZZY_RATELIMITED(0.00)[rspamd.com]; ARC_NA(0.00)[]; RCVD_TLS_ALL(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FROM_HAS_DN(0.00)[]; FREEMAIL_CC(0.00)[davemloft.net,gaisler.com,kernel.org,linux-foundation.org,linux.ibm.com,ellerman.id.au,gmail.com,infradead.org,google.com,suse.com,vger.kernel.org,kvack.org,lists.ozlabs.org]; TO_DN_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:email,localhost.localdomain:mid,imap1.dmz-prg2.suse.org:helo] On Mon, May 11, 2026 at 04:05:33PM +0200, David Hildenbrand (Arm) wrote: > We removed the last user of NODE_INFO in commit 119c31caa59e ("mm/sparse: > remove !CONFIG_SPARSEMEM_VMEMMAP leftovers for CONFIG_MEMORY_HOTPLUG"). > > But it really was never used it besides for safety-checks ever since it was > introduced in commit 04753278769f ("memory hotplug: register section/node > id to free"), where we had the comment: > > 5) The node information like pgdat has similar issues. But, this > will be able to be solved too by this. > (Not implemented yet, but, remembering node id in the pages.) > > Of course, that never happened, and we are not planning on freeing the > node data (pgdat/pglist_data), during memory hotunplug. > > So let's just stop marking the pgdat as NODE_INFO. > > Signed-off-by: David Hildenbrand (Arm) Acked-by: Oscar Salvador -- Oscar Salvador SUSE Labs