Received: by 2002:a05:6358:1087:b0:cb:c9d3:cd90 with SMTP id j7csp7284696rwi; Mon, 24 Oct 2022 12:21:24 -0700 (PDT) X-Google-Smtp-Source: AMsMyM5w0Kaf+/PnL2SCwG4fz1/qBGbPCSdy6esbn60F1VGYtHx9alYZKym+D4+fH4e+VeaUcBWG X-Received: by 2002:a17:907:97ca:b0:791:644c:491e with SMTP id js10-20020a17090797ca00b00791644c491emr28184310ejc.555.1666639283910; Mon, 24 Oct 2022 12:21:23 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1666639283; cv=none; d=google.com; s=arc-20160816; b=n0rXWjo02UDkRubbrqH4q3EJo+eXgSmNoPFWx742PrWlU4O1eMbq2BFVvtUOGxS6uM 1JD77STheGoa1EZIHu80GkgSxAUsuwcLu7dUxoAbTlU0I9jR5uT0ZFexV7hEmeG60Bc+ v2yQy7uD5rWy3UGAdARXDBbS8sQgOaRuLfQrhka84TILn/aYB19+YBpjVxH+bYU1KOPT CUxst0Ee8qRYE3VFxUiFjyvWWF3jdVMbBot9oPOw0CKsluMxytk73VKLeZcCR5pgRS/v MFf8SdX4/eo3kO5VZU9QSOp413xpZLxMEa4iHJ0/40IGOQ4iv9xShOMqcblutyxDn7LZ cB4A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date; bh=ohfolVyEwTGA6dZoX6saPhP2QSTVI2PE0ZFcdleLLMw=; b=MN4ZwZQ2vOlhqCXLU7IDvG1OxyV4li/5X1vfb72uuBsGq6nTG5bp4X54a2jCu+F0Ck TVQUv8VdSzWHMLbbGVkLB2WUhTnTCg9BLXhzNBPg61hQmo+GUfgIAxQ2ktHvMeJpJifn Yx9PvQRPWFHiTtSkDorWVVcfJLtO9BbM9yhZBi/OgyeKOvPf52pDpeKsd8Vx1xTj5WPp dkhnMQFcd+xyyhJj0mBkniUNyBd7gbCL7AcpATSnxLYs9OglFzrIr1JvTN4cbZOgthWL uSOs3pX2fd7/l0KRn19H4PHwJzKLVZj7u9UXVIb5uz+VmByzmXt5aihfxBmaYiTqODuV BBJQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id nc5-20020a1709071c0500b0078b6559a610si755184ejc.12.2022.10.24.12.20.59; Mon, 24 Oct 2022 12:21:23 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231748AbiJXTD7 (ORCPT + 99 others); Mon, 24 Oct 2022 15:03:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42444 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232730AbiJXTDd (ORCPT ); Mon, 24 Oct 2022 15:03:33 -0400 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E81B138A11; Mon, 24 Oct 2022 10:42:47 -0700 (PDT) Received: by verein.lst.de (Postfix, from userid 2407) id 6EF1268BFE; Mon, 24 Oct 2022 17:03:20 +0200 (CEST) Date: Mon, 24 Oct 2022 17:03:20 +0200 From: Christoph Hellwig To: Logan Gunthorpe Cc: linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, linux-pci@vger.kernel.org, linux-mm@kvack.org, Christoph Hellwig , Greg Kroah-Hartman , Dan Williams , Jason Gunthorpe , Christian =?iso-8859-1?Q?K=F6nig?= , John Hubbard , Don Dutile , Matthew Wilcox , Daniel Vetter , Minturn Dave B , Jason Ekstrand , Dave Hansen , Xiong Jianxin , Bjorn Helgaas , Ira Weiny , Robin Murphy , Martin Oliveira , Chaitanya Kulkarni , Ralph Campbell , Stephen Bates , viro@zeniv.linux.org.uk Subject: Re: [PATCH v11 0/9] Userspace P2PDMA with O_DIRECT NVMe devices Message-ID: <20221024150320.GA26731@lst.de> References: <20221021174116.7200-1-logang@deltatee.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221021174116.7200-1-logang@deltatee.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_NONE, SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The series looks good to me know. How do we want to handle it? I think we need a special branch somewhere (maybe in the block or mm trees?) so that we can base the other iov_iter work from John on it. Also Al has a whole bunch of iov_iter changes that we probably want on the same branch as well, although some of those (READ vs WRITE fixups) look like 6.1 material to me.