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=-4.0 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 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 CE7ACC433E0 for ; Mon, 10 Aug 2020 12:40:42 +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 9A52120678 for ; Mon, 10 Aug 2020 12:40:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="L8jzjxyV"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="chL+UlvP" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9A52120678 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org 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=wuFEmsVLNVFcvBAuE6LOqP9TWbKxHZvYCzxN4sKJeGw=; b=L8jzjxyVjpuQ0ifc35rzTp4Nv IJIqfOjW1/kAIdmASd4b1lWRPL5XQA2cAyiEpXIAmY00JRSfpWbqfqBSa4iyECSp4h4hl1+VHAE98 M+T1YDQehecgxQtU0ryR84iGtcVTcW3HAp2aI84Ax0LkyrNvoeLcu+I6QUTKO42FwmdlDbtPZXR80 x7qO1lKCfCvO/jC1uBnm9adESVubYx5cHarouZIUkkslo5+ea4fKfzyfQr132XyzV6WB1qWMzKFh+ krafu3AdLw2t8GJYX0EmSimiXKf/En5wrrV8YoTbJyM5XZAq4CqVjIxehp0BBhdSkFHTSX+gXBW7S dS+yl8Lsg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k576V-0004Km-NO; Mon, 10 Aug 2020 12:40:39 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k576U-0004KR-1s for linux-nvme@merlin.infradead.org; Mon, 10 Aug 2020 12:40:38 +0000 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=nve5hjg62RcuifCk3pYH2qb2k5CUs/S9dBkqeHh7iWs=; b=chL+UlvPXmngzG+sOpJAWBI5qn QUeVfw/fcroPDLmcGuysVDBSeSiq5TMtnZ//dfTN5PEhsNPTUUU5/CdcVOVif4NL+2CDy9oAC32f0 5HB0qd9W646DeVBi382eMvvOuHodRGWlKgbwboH2zKv7rRYHvyLlfGQKreTcbSmPU+zcvqvDr4ULP DDvxWVQfEXzVZf/mrkoQ5GK9vf0jr+EfrQU84cknPXQI2FJRK7Dt8TBBcrHOq9TzGm/5zdWRl2y1y GritnLDjkaaidKr3pzdCg2SznAzxMEggOyMJ+xRZPjDicYEkz/paeqbXXfYxEK1iKjweHEqNvHGRD 7nS25cYQ==; Received: from hch by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1k576S-0006cF-EV; Mon, 10 Aug 2020 12:40:36 +0000 Date: Mon, 10 Aug 2020 13:40:36 +0100 From: Christoph Hellwig To: Keith Busch Subject: Re: nvme reservation commands during controller reset Message-ID: <20200810124036.GA25070@infradead.org> References: <20200809161016.GA63121@C02WT3WMHTD6> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200809161016.GA63121@C02WT3WMHTD6> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html 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: "Anner, Ran" , "linux-nvme@lists.infradead.org" , "Engel, Amit" 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 Sun, Aug 09, 2020 at 10:10:16AM -0600, Keith Busch wrote: > On Wed, Aug 05, 2020 at 07:14:22AM +0000, Engel, Amit wrote: > > What is the reason for setting REQ_FAILFAST_DRIVER flag in nvme_alloc_request ? > > The original intention was to mark only sync cmds as failfast ? > > Special requests don't get generic error handling. The caller gets to decide > how to handle it. Although I wonder if we want to allow to opt in into the normal retries, as for some cases that might actually make sense. _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme