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=-3.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 7AB44C04EBE for ; Thu, 15 Oct 2020 08:03:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 235A22224E for ; Thu, 15 Oct 2020 08:03:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="mMRHnNZT" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387428AbgJOIC7 (ORCPT ); Thu, 15 Oct 2020 04:02:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53678 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728048AbgJOIC6 (ORCPT ); Thu, 15 Oct 2020 04:02:58 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6477EC061755; Thu, 15 Oct 2020 01:02:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; 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=a2qZql200AZN5N8nLwRfRT3TJyI5WyTogEl+yUVcMaU=; b=mMRHnNZTH9o/HtpUjP8YHNIQyp AsR7PsYskBsLyou/+zQT+n+HEg36cIqGJo4jK+hwKhZ6+up4QpErlS2U5uPhGAMXxmA3H11U0UNYb 1zJkNa5i6EcfKih1iPRHJfuNEg9ub8J7V9cICfb3i3ze+7ssw6/V0nKuUGS7SOkzZef6WPMlrDx0p EDKti4gagCtiMFFd/3tPfO5iHN33GZmMVpj3tNBlQsID/rHbQeP7zzyp01dFUB3WMnNCXwxYlJDvg 1PEKzLUSzj2WDjb+BWXqgZcS2of6pFNVLrq8IjyCFbSd7zYsuYq42W2SvUMAlTxq5kC6pxaKJDwDs 1j6BdwiQ==; Received: from hch by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kSyDu-0008AD-QZ; Thu, 15 Oct 2020 08:02:54 +0000 Date: Thu, 15 Oct 2020 09:02:54 +0100 From: Christoph Hellwig To: Nabeel M Mohamed Cc: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-nvme@lists.infradead.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, smoyer@micron.com, gbecker@micron.com, plabat@micron.com, jgroves@micron.com Subject: Re: [PATCH v2 00/22] add Object Storage Media Pool (mpool) Message-ID: <20201015080254.GA31136@infradead.org> References: <20201012162736.65241-1-nmeeramohide@micron.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201012162736.65241-1-nmeeramohide@micron.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org I don't think this belongs into the kernel. It is a classic case for infrastructure that should be built in userspace. If anything is missing to implement it in userspace with equivalent performance we need to improve out interfaces, although io_uring should cover pretty much everything you need.