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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 12DBCC61DA7 for ; Thu, 26 Jan 2023 16:51:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=St7IrS1mX9F0RKDBGEEFoebKrWt9ulX8fBNwRg7efIc=; b=RqUD7uQ26YbE8WRbr9vFarHsiT VBeojFUo8ScxRUscW+S43QqDjhL6jF4jdAmVIndjv0i4sELMZdxrdcTTPJnfFUMk6psL0z/HXTP5n AMrx3j0FIkMl18shh0JYhHdVOFPeo/Ck9UKJgy9W+a6FiKNzq7dAz8+h+t+7bbGGQJ0BjnREsBHGa vRCnyKMMcdN8hKjn6h8AkaYrxAJlHdW4V4Kt8rdeuApvzuXjm46o6ia8n+Irbfqg0TDR7WqDRf/Ne HeRvICsTFfO98wTc0DqGnLFAS84s5FHhSFSPrRLrhdbHQYvbZhmPeO4A0FLjX5DClqELZ++DM7V9u s0Fa6SDg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pL5Sg-00BsKr-G7; Thu, 26 Jan 2023 16:50:54 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pL5Iq-00BpKi-QZ for linux-nvme@bombadil.infradead.org; Thu, 26 Jan 2023 16:40:44 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Type:MIME-Version:Message-ID: Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:In-Reply-To:References; bh=St7IrS1mX9F0RKDBGEEFoebKrWt9ulX8fBNwRg7efIc=; b=Eg3hNBdDGz6MmWSRYZAiHki/eE lqofbPItG5HE7VLsezYljzQ1GYuqfgr/xpQ/G5btMaRZLA1Y9KXs4WlRInUMGu6QuUVLsxPqcszh7 wkBxk+VAdUw26ftVTdoTBVoM48/XpwfRXNr6x9+1o+vpVQJCz+xENydh9aHYrOg7LGO/Bn+uCk+kZ 9VP6oYuzy2VNB4n5jugCQ4H3LhlJltty78aGk0qxW71KhXi/ax2RJvjjXI9+VoHsJR2k4KYIwb3hj B+FIyRAUbWBFqdShQ7cCSoed4oUCdWJ9MtkfMBoVCRSN8nIyT+TP1u+FCs8pf7fyfchlVGPNxcCbn 2W3TJ5EA==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pL5In-006uHI-SO; Thu, 26 Jan 2023 16:40:41 +0000 Date: Thu, 26 Jan 2023 16:40:41 +0000 From: Matthew Wilcox To: lsf-pc@lists.linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-block@vger.kernel.org, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org, linux-nvme@lists.infradead.org, bpf@vger.kernel.org Subject: [LSF/MM/BPF TOPIC] State Of The Page Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org I'd like to do another session on how the struct page dismemberment is going and what remains to be done. Given how widely struct page is used, I think there will be interest from more than just MM, so I'd suggest a plenary session. If I were hosting this session today, topics would include: Splitting out users: - slab (done!) - netmem (in progress) - hugetlb (in akpm) - tail pages (in akpm) - page tables - ZONE_DEVICE Users that really should have their own types: - zsmalloc - bootmem - percpu - buddy - vmalloc Converting filesystems to folios: - XFS (done) - AFS (done) - NFS (in progress) - ext4 (in progress) - f2fs (in progress) - ... others? Unresolved challenges: - mapcount - AnonExclusive - Splitting anon & file folios apart - Removing PG_error & PG_private This will probably all change before May. I'd like to nominate Vishal Moola & Sidhartha Kumar as invitees based on their work to convert various functions from pages to folios.