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 32554ECAAA1 for ; Mon, 24 Oct 2022 15:03:30 +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:In-Reply-To:Content-Type: MIME-Version:References: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:List-Owner; bh=ohfolVyEwTGA6dZoX6saPhP2QSTVI2PE0ZFcdleLLMw=; b=dE8zmriT8ex+Zv/mBw1MfgSOSD ztBDlmkrKLXtJV+0wb8YQvV/BWA+wubK09OYuiC9MMQE+fmGQNvQZb9m5Wt9sjObXG1shxe2oImdV PqTWGwsCnF6MgAilv6SjNmN7qYwRgifaR1S5Z/6+EAgOrGJhvDjt0wof3onsnyEB37TPLX7ByW3uX Jq5B1KdTPWk7T9aXQCXZvqsF7i7PTVmNU0L+jKqOTb8yF1XlNIoJXsNjL/9pcEyWf3w4EA/OlNuGw 1zXLs5CW4UEMxo6zu+ZpUJyPBkZzQWzgYG0GreELJK5soz/LgCfKfUvgBlL1geTekrcbLuSX9n7/6 yhoqDhPQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1omyz9-0022RR-Qj; Mon, 24 Oct 2022 15:03:27 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1omyz6-0022Ph-Vq for linux-nvme@lists.infradead.org; Mon, 24 Oct 2022 15:03:26 +0000 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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221024_080325_176077_9E664F08 X-CRM114-Status: UNSURE ( 9.09 ) X-CRM114-Notice: Please train this message. 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 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.