From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.223.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3EBBD31F9BB for ; Tue, 12 May 2026 08:28:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778574541; cv=none; b=cz45raLuzEglf19Tp7V672/19PJN2qh+y+YYTtmbYzq5JrwsoqgwMjHF55j/2h3SpuTZ9T6ZreprdxLpJfPRn5JETMLQDO38TylDqqxU7RGULvhgbzzINeg3IlLwxGGTcW5UcWSjzQIgc3iKftFiwFvvhqSJtRN0RfCMWb8tOTY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778574541; c=relaxed/simple; bh=+xEInZ7jK37HpJcLF7tSEvYrwxU72djSjQBjP0C22uM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=RT9sm1r/dN9ZYYTX2QtIhHuPxd0JdaREHAgS5qr9x+MU0w7Rd8aiCfpRRYZWmNtcs3Kzq0gpJzpUKQX2nnalIwo3eLXFX9dMkeOX4MC5xN2c5C5yFqzLKT8Eph7XxKy61TmZ1Uf0z6KkBpfzsLUk8VtAhUvPS+IPpaVq832Wfi8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de; spf=pass smtp.mailfrom=suse.de; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=0cb/jXDm; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=WrQ6pNAl; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=0cb/jXDm; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=WrQ6pNAl; arc=none smtp.client-ip=195.135.223.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="0cb/jXDm"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="WrQ6pNAl"; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="0cb/jXDm"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="WrQ6pNAl" 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 9DC9375945; Tue, 12 May 2026 08:28:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1778574537; 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=IC6xPzST+TZhZT7b1WIo6RFfE0Aey6ccxBiATRxTi4A=; b=0cb/jXDmbTUTOFNVqvSALI0F/JLIGlZa+ISDVhETi7RIgHnQAFCL2FUIVLOPyI2BcE4DPH D3zKfFHuY4IbaF43v/qG0Pwf+Y9ggOovwObNOOityEAK9xFZZ10RYgzz0YQKwiTn1NGkL4 Z/H6E8qJqYBu2oY65BbElKFojkZxHG4= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1778574537; 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=IC6xPzST+TZhZT7b1WIo6RFfE0Aey6ccxBiATRxTi4A=; b=WrQ6pNAlxMrbbhvFBJ1inQltEsG5LvqeRs8lVC7DSvf/p5PZbOtGB7cGqYIDMHYw2o+KFv 4XitzC/nndVhJEAg== Authentication-Results: smtp-out2.suse.de; none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1778574537; 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=IC6xPzST+TZhZT7b1WIo6RFfE0Aey6ccxBiATRxTi4A=; b=0cb/jXDmbTUTOFNVqvSALI0F/JLIGlZa+ISDVhETi7RIgHnQAFCL2FUIVLOPyI2BcE4DPH D3zKfFHuY4IbaF43v/qG0Pwf+Y9ggOovwObNOOityEAK9xFZZ10RYgzz0YQKwiTn1NGkL4 Z/H6E8qJqYBu2oY65BbElKFojkZxHG4= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1778574537; 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=IC6xPzST+TZhZT7b1WIo6RFfE0Aey6ccxBiATRxTi4A=; b=WrQ6pNAlxMrbbhvFBJ1inQltEsG5LvqeRs8lVC7DSvf/p5PZbOtGB7cGqYIDMHYw2o+KFv 4XitzC/nndVhJEAg== 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 6AB7A593A9; Tue, 12 May 2026 08:28:56 +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 n1NXF8jkAmpyewAAD6G6ig (envelope-from ); Tue, 12 May 2026 08:28:56 +0000 Date: Tue, 12 May 2026 10:28:54 +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 2/8] mm/bootmem_info: drop initialization of page->lru Message-ID: References: <20260511-bootmem_info_prep-v1-0-3fb0be6fc688@kernel.org> <20260511-bootmem_info_prep-v1-2-3fb0be6fc688@kernel.org> Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260511-bootmem_info_prep-v1-2-3fb0be6fc688@kernel.org> X-Spam-Level: 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)[imap1.dmz-prg2.suse.org:helo,suse.de:email] X-Spam-Flag: NO X-Spam-Score: -4.30 On Mon, May 11, 2026 at 04:05:30PM +0200, David Hildenbrand (Arm) wrote: > In the past, we used to store the type in page->lru.next, introduced by > commit 5f24ce5fd34c ("thp: remove PG_buddy"). The location changed over > the years; ever since commit 0386aaa6e9c8 ("bootmem: stop using > page->index"), we store it alongside the info in page->private. > > Consequently, there is no need to reset page->lru anymore. > > Signed-off-by: David Hildenbrand (Arm) Acked-by: Oscar Salvador -- Oscar Salvador SUSE Labs