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]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0BAEAC54E94 for ; Thu, 26 Jan 2023 16:40:52 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 6127A6B0072; Thu, 26 Jan 2023 11:40:52 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 59AEA8E0003; Thu, 26 Jan 2023 11:40:52 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 489988E0001; Thu, 26 Jan 2023 11:40:52 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 3A89C6B0072 for ; Thu, 26 Jan 2023 11:40:52 -0500 (EST) Received: from smtpin04.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id F3B23140EA9 for ; Thu, 26 Jan 2023 16:40:51 +0000 (UTC) X-FDA: 80397514302.04.0C2DFB6 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf17.hostedemail.com (Postfix) with ESMTP id BFC9240016 for ; Thu, 26 Jan 2023 16:40:47 +0000 (UTC) Authentication-Results: imf17.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=Eg3hNBdD; spf=none (imf17.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1674751249; 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:in-reply-to: references:dkim-signature; bh=St7IrS1mX9F0RKDBGEEFoebKrWt9ulX8fBNwRg7efIc=; b=CkhpN/QywD0sHIbjrEIylIRsXwQDEcVmlbtl0G5ey2LFzrTvvXcjN8yUXBUmfZ0tYzTruB y5P+Z2VO9Rc9otgXpm0XbyH/p7I/4Fx27BuXk6Mlc+DYq45LujK6JKwd7TyshbdWap7Gpw /MY+0j048sLeh/gHMQAat0j6ueHMP6E= ARC-Authentication-Results: i=1; imf17.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=Eg3hNBdD; spf=none (imf17.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1674751249; a=rsa-sha256; cv=none; b=lk6pnctTVeJtxTgoVVwUJ4TE3pcTUIfu7uE6izBYbhXueWX554n629MW6/vC50EDTxlkXj HQ6J+Z1gewU7pnwyocnieIa9rEpioLgpk+Rw0VmS0CWltdHjGo79v31FOtyEaSvhMK7fBm AWLOc3XE+JKIMNjQaYLclOk21i8wFXk= 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-Stat-Signature: c4pw9e74pyjadq5odj5q3gptwdbngdmc X-Rspam-User: X-Rspamd-Queue-Id: BFC9240016 X-Rspamd-Server: rspam06 X-HE-Tag: 1674751247-108781 X-HE-Meta: U2FsdGVkX18ycf1gKo09IgkbphJ16e7ZMgXqq5rtmuqz2zaLn8GFnwXKS2zQzqz6sace1xs+xv7p8VZGyaVWqXJV9N3esjNCFDCecFcoKJsgVYUyw6qX14ScZvp/LqRiRvoOaZ4Nl75hH0pQKSDzGVa2oMSWIeXT/4d6GJ7Zlzi0hNyzHVjeKMZW8RNWRChZadBjtEZXu7h3FTQOGLFd2OskxX1r87p/sxYBBSPDRV/oi+/0g+OQs0Gdfr2fI6r9J8OfVuInUDh+kZKzty9jtYCu9gFD5xZz3myXxQCiu8ti7jnWxsl8bkcVAtyKuibABhzUwAC+FDyDSf3gkenT89EZEQrgImoXxAirSCw4jVWeVJ7fyUxuGRt5CCXNjDr6/4myJi0+Wge558Whstz3860GE5xMm38DO5KODVzl9qZirOhmCGzzqZGYF0e0X+22WkV6n9AqkqF7a95J2FLfY8nDC2mIycc+5a581DbjUgx8C5v2XILSlIJYe3vDIQ8Cyz1R7Qkbk3pH2xoNMbZWU9nKWwf8wsmiGo1lx8ro1e9MS68OPjvVmOQY7lCPTqj0vZA9qzFYeZhcK5vpJ4Figx1lJQMWakitdq/kc2MVfP29eSyA72aYF96uxNCPu45cfvS7Dx0VId3aKj71koP4PICujy6QtI7+2hR4DjYYj6PQK2pX3ezFLVNFyOzUeiJyTxHIYdIRQ4VA9Dlo9077b4MIgML2Sw/t5BGP40SDz4TDop497GSDnekZIFZ+KVAVy88af9m3tJA3pno6i4lRCeZclsRvYb33JvHs3XqjsD9+xgVYMp7N48jHdX44p7XL1mzeb1oLo4NJ7NqOnqU8RHMEFu7McdpudtUTaVMLuNNdFMuwulZhTwiYKjxN98s+QSFqQkQNYCdeZNmfkAPaA+g1KblSltX+mPxMRf7blrVSrh883poZg65LsvhRvhX38Oxbknnpg66ifsc6NS9 Mr8bkafh tDYshSOpWuxIH7VJI7+/TgywKW5usTEVnlJFluRAo8t+0uONsXSDRV/JoyKL6TL8Wzej0UttygcGfnGXJnE/jpYHM+1QwNE1JvK4neD2fhMsV7GnEEkff/QmTAEl+EDvyISRs7o1UqMx89/vjvwVXGSgr/w== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000016, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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.