From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E6CAD27B50F; Mon, 8 Jun 2026 12:50:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780923018; cv=none; b=Vx5dDTuEjz3QzJJmDXWoIN8hiF3o/TXJWUjJlXLeNDbfJqyraj2Rey1wkFQncp3yQJyYvLo/1YgGSRH2ZqxDAiD2HcQXPEa/hjkaxfKQwDQyXxQTXTVtLhlK0y+6oEeBs2J+NvDdxjSm+vyszs9IOZuKAfd6PMYwP2WLc3MRcFg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780923018; c=relaxed/simple; bh=ONLKa3SjpGexyUZUz+OB4ThbnzpIZm9cjt7G1mGtuU4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=JeHIVx43O1cQ1Ii49Cz70iMl9fVSIG7MnMMXU3g9pVJGG1zxWlB7OMWVExXai3ZtoH3GlSTxVGaCwAcGxbXroqRVdota+MIGHDrQQ01qvV8vod3LOJVAeZzrdrGi4FaQt+I3pZtQH2rZGj+OCxTqqSHhRQGSbXGHtr5GA42UJ8g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=pass smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=ax2evEU/; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="ax2evEU/" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=wFSoIlYiJRdf5MABSyRuyjOJ1eim/XMAOiAPmWPfi6Y=; b=ax2evEU/z8zku5iFN5ybCSrJOl f8RxcntFgAaTMGUM3dRw+l3qxIA6hLdGcaOwwO5imUanvWjSIX0kvB8DyTBu+4p5co5/gdlAI/fIb co37YsjfIqIRXNoRyJjIKvVJLy3R3asDr/62h/YXDHiw4fjcsItj5tTu5oTeKFLk9m8rEr/7SOe93 n1L+hTszqKknmsEvzB4akay7IpElFQgBwmdPHNCMvZOk7StVD9dVCj8vEwahDSLj4TcTbzW/clg8f d5yNjjicKhRBpFQxuhjcjqc4mTv0/2V8YnIBzZviYWOD2NUTIrowev11AXRilq6h2tLZ1TSDamCtv HGZMc4VQ==; Received: from willy by casper.infradead.org with local (Exim 4.99.1 #2 (Red Hat Linux)) id 1wWZQZ-0000000DiTT-1d6G; Mon, 08 Jun 2026 12:50:03 +0000 Date: Mon, 8 Jun 2026 13:50:03 +0100 From: Matthew Wilcox To: Lorenzo Stoakes Cc: "Michael S. Tsirkin" , linux-kernel@vger.kernel.org, "David Hildenbrand (Arm)" , Jason Wang , Xuan Zhuo , Eugenio =?iso-8859-1?Q?P=E9rez?= , Muchun Song , Oscar Salvador , Andrew Morton , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Johannes Weiner , Zi Yan , Baolin Wang , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Hugh Dickins , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , Christoph Lameter , David Rientjes , Roman Gushchin , Harry Yoo , Axel Rasmussen , Yuanchu Xie , Wei Xu , Chris Li , Kairui Song , Kemeng Shi , Nhat Pham , Baoquan He , virtualization@lists.linux.dev, linux-mm@kvack.org, Andrea Arcangeli Subject: Re: [PATCH v10 03/37] mm: page_alloc: propagate PageReported flag across buddy splits Message-ID: References: <1a407d39a9ebd95e9de67e44f9ad2db37c9f31e9.1780906288.git.mst@redhat.com> Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Mon, Jun 08, 2026 at 10:52:28AM +0100, Lorenzo Stoakes wrote: > > - split_large_buddy(zone, p, page_to_pfn(p), p_order, fpi_flags); > > + split_large_buddy(zone, p, page_to_pfn(p), p_order, > > + fpi_flags, false); > > I don't love adding a mystery meat boolean parameter like this. Particularly when we have the FPI flags already being passed. Surely this should just be another FPI flag?