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=-5.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, 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 0B459C433E0 for ; Tue, 9 Feb 2021 07:54:51 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2307064E37 for ; Tue, 9 Feb 2021 07:54:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2307064E37 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=OlfqykzHq5ZkIMuB/LwAicx8ziEQWKsxyWgkfub2EcY=; b=i2pDVJHX+P8Lyw6UPXxOdjl7E ifAF5Id5AtbrNDfDRiEXkRenUtYIaYeI6gqzpeS22QynvJPGn3sHXWppb6P0BWtvCIrUH/3lZ4aco xnH/Hhnn3ieGrSZEplQ3+VFKfC827pRYCacB4G2o+hXvigpltIfoQ6gWzYhpJXFOEtOS2Q9qxFimR W2C0teRZZBZNF/sOpt1w9+lBRYug0ytFfy8cFsOxAx5Bzy3h7uNFa7q84b+gXfqXOiFaFWjo6Z3uM k+MSLQ4ETw5rZnUBXvYBjo2x1D1ukx+vWOiTujjoggxVcF6tgb/aGdSzG3b2B7ft+bMzU+5WGuaZt T1ZFVJE2A==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l9Nr7-0006Lv-8z; Tue, 09 Feb 2021 07:54:41 +0000 Received: from verein.lst.de ([213.95.11.211]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l9Nr4-0006L5-DC for linux-nvme@lists.infradead.org; Tue, 09 Feb 2021 07:54:39 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 05EFA67373; Tue, 9 Feb 2021 08:54:35 +0100 (CET) Date: Tue, 9 Feb 2021 08:54:34 +0100 From: Christoph Hellwig To: Clay Mayers Subject: Re: [PATCH V2 0/2] nvme: Support for fused NVME_IOCTL_SUBMIT_IO Message-ID: <20210209075434.GA31373@lst.de> References: <20210105224939.1336-2-clay.mayers@kioxia.com> <20210125195844.1390581-1-clay.mayers@kioxia.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: 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-20210209_025438_590036_8F29C5F8 X-CRM114-Status: GOOD ( 12.90 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sagi Grimberg , Chaitanya Kulkarni , "linux-nvme@lists.infradead.org" , Jens Axboe , Keith Busch , Christoph Hellwig Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Tue, Feb 09, 2021 at 12:53:17AM +0000, Clay Mayers wrote: > > From: Clay Mayers > > Sent: Tuesday, January 26, 2021 1:14 PM > > To: linux-nvme@lists.infradead.org > > Cc: Keith Busch ; Jens Axboe ; > > 'Chaitanya Kulkarni' ; > > Christoph Hellwig ; Sagi Grimberg > > Subject: RE: [PATCH V2 0/2] nvme: Support for fused > > NVME_IOCTL_SUBMIT_IO > > > Is there any other feedback on V2? My feedback is that we should not add code to the kernel driver and our fast path for fused command unless we have a mainstream in-kernel users, that is not at all for the foreseeable future. _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme