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 X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CDB4FC32750 for ; Fri, 2 Aug 2019 14:54:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A352B21726 for ; Fri, 2 Aug 2019 14:54:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amazonses.com header.i=@amazonses.com header.b="GkFK9XVP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390164AbfHBOy1 (ORCPT ); Fri, 2 Aug 2019 10:54:27 -0400 Received: from a9-114.smtp-out.amazonses.com ([54.240.9.114]:52100 "EHLO a9-114.smtp-out.amazonses.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726505AbfHBOy1 (ORCPT ); Fri, 2 Aug 2019 10:54:27 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=6gbrjpgwjskckoa6a5zn6fwqkn67xbtw; d=amazonses.com; t=1564757666; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:MIME-Version:Content-Type:Feedback-ID; bh=z+KAYvssR654xT1PJmIJ3CS5+fx3UQzQRMe7cbSlSqs=; b=GkFK9XVPajmUrXiNorqYyeXjnb5kxq4Cb7xBG5EVT9qDBnmqPCxH/Q4RMGLw6oDT woH5I+acrCTkrFsP9K97B+S3gYciANlTIcTOKxu6QVxVDhvsvig0tH2wb9qGN7pVOWQ v11bHmqsvgx+cmakvLlTN7O9cMKuaG6z3jCKUZYw= Date: Fri, 2 Aug 2019 14:54:26 +0000 From: Christopher Lameter X-X-Sender: cl@nuc-kabylake To: Matthew Wilcox cc: linux-fsdevel@vger.kernel.org, hch@lst.de, linux-xfs@vger.kernel.org, linux-mm@kvack.org Subject: Re: [RFC 0/2] iomap & xfs support for large pages In-Reply-To: <20190731171734.21601-1-willy@infradead.org> Message-ID: <0100016c52d32b18-8593625f-bf32-4005-be04-79af900ac112-000000@email.amazonses.com> References: <20190731171734.21601-1-willy@infradead.org> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-SES-Outgoing: 2019.08.02-54.240.9.114 Feedback-ID: 1.us-east-1.fQZZZ0Xtj2+TD7V5apTT/NrT6QKuPgzCT/IC7XYgDKI=:AmazonSES Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Wed, 31 Jul 2019, Matthew Wilcox wrote: > Christoph sent me a patch a few months ago called "XFS THP wip". > I've redone it based on current linus tree, plus the page_size() / > compound_nr() / page_shift() patches currently found in -mm. I fixed > the logic bugs that I noticed in his patch and may have introduced some > of my own. I have only compile tested this code. Some references here to patches from a long time ago. Maybe there are useful tidbits here ... Variable page cache just for ramfs: https://lkml.org/lkml/2007/4/19/261 Large blocksize support for XFS, ReiserFS and ext2 https://www.mail-archive.com/linux-fsdevel@vger.kernel.org/msg08730.html