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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F2650C6FD1D for ; Mon, 20 Mar 2023 13:11:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231573AbjCTNLT (ORCPT ); Mon, 20 Mar 2023 09:11:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33832 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229684AbjCTNLO (ORCPT ); Mon, 20 Mar 2023 09:11:14 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 914FFB76A; Mon, 20 Mar 2023 06:11:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=+/9FCDUcz/9yyumayNm7HvxGQ4k/d4p/8qwiRrkpHdI=; b=X4GyKsIv0QTVIz6ae3YmM33lHX VBU9O+UrtEDNpJX70qptJmPQKFA3abRRe+j9f5PYJLaMjfBHzf6YU1XTRsWEF2tcqoWJ60HZw/ZY9 t6HL2p0DIxaFiiV5kemuIZVAGq682ctS2u/pInLxhO5QbmB+g835D/22Pb3Vgv1KhfDDzSDsbZy9i lmpR3y1YYr6inC257Kit2JShOphUvvLieE79DRyIJFZX2I/WTKHZJQWoWcATKxDcwaJ51gtOSvX8F 8ycRRX0udJsYRVCLiqXafKmJKeqAWwW6QvJgu8P321g8h6kVt1ESX9K9Y+0haeuwZSWlPWykgOLCa oLesLzCg==; Received: from hch by bombadil.infradead.org with local (Exim 4.96 #2 (Red Hat Linux)) id 1peFHu-0093xe-1V; Mon, 20 Mar 2023 13:10:58 +0000 Date: Mon, 20 Mar 2023 06:10:58 -0700 From: Christoph Hellwig To: Jens Axboe Cc: Al Viro , Christoph Hellwig , David Howells , Matthew Wilcox , Jan Kara , Jeff Layton , David Hildenbrand , Logan Gunthorpe , Hillf Danton , Christian Brauner , Linus Torvalds , linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Jason Gunthorpe Subject: Re: [PATCH v19 00/15] splice, block: Use page pinning and kill ITER_PIPE Message-ID: References: <20230315163549.295454-1-dhowells@redhat.com> <167890243414.54517.7660243890362126266.b4-ty@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <167890243414.54517.7660243890362126266.b4-ty@kernel.dk> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Mar 15, 2023 at 11:47:14AM -0600, Jens Axboe wrote: > > [...] > > Applied, thanks! Dave, now that the basic patchset is in, can you resurrect the patch to conver the legacy direct-io code? That would allow us to instantly the PAGE_REF version of the bio_release_pages, and also be a giant step toward never modifying page contents from a regular get_user_pages, and thus fix the file system problems around that.