Received: by 2002:a05:6a10:5bc5:0:0:0:0 with SMTP id os5csp1700760pxb; Thu, 28 Oct 2021 08:30:01 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyVgjCp2SIk0LsanOB7c4JPSy8WoSlLW1fnnbaIzSCVRJPHl/W2cwbOGnfwkcx/7OeHdtvj X-Received: by 2002:a17:902:e543:b0:13f:dffb:8e6 with SMTP id n3-20020a170902e54300b0013fdffb08e6mr4396739plf.27.1635435000932; Thu, 28 Oct 2021 08:30:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1635435000; cv=none; d=google.com; s=arc-20160816; b=VC/B4Xu9v4ZTTlnrgBdNsNLDOxLWzlhHHxNk5crLi+qfNeEVbWbwsHa1VJ1PhDLsPE DNkrUqWRzyfEl3Ysx+1QqpVEGmFqDqi32d6iWG4huqdqnN61sIchTRxZkNwNym7AsC4Q 12j5XnzPAP5NSo4LjzOetRQQrMtECHlNLKHo9w4bU1rPxnk/6LmBwP0hxM6LT6xfmGlx 20oYW0yO4DFJ53oqbY8rJJvUCJrCDWeYls0S4THjxiyKTk3wWLUbTOR+qbDU6OQYr26V zpeNIvCL/N9l4YsR/ilRANGDnI6MoS0K7+v6alJt7L1rHIXcmZf/R7YwaZn37/PT7ZFc f4gA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=C25FBrHsCS4SYuLkvj36k8rSA/hCmYxj6KRyZJNajPM=; b=KvdSVwsxSqAWE2uFtLosIYN/slgcPE+oK1JZFmt3bAj4G+ny2cinTVci9+0WHxOnvL 7H+0OippfogYlNN5XefiQIYB9jIK/3JuG5hGTBm0dzqvWPPNK/R6WClje1J/P2DRgTPe JCHchlq9KXyrGRyZZxl7zfHsQ8JDaKXy4xuwRuqBNdIVEuJAwHy1P7EA73abo29/MXo8 WQR/59H3wImt2+62ABNiyCD/SoraLuFVHuO+RYTfKS6QAQKfRP6hpCDsa6BGMg4NAsx7 5QpD4k/31g2B1IBQjHq4qpjd5jIZ9WHsiF2WGSIJPU5w2btGjQHCFXTxDy5uIqzMs3vS vwqQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=bombadil.20210309 header.b=o7THTnaL; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id x10si4329398pgr.291.2021.10.28.08.29.47; Thu, 28 Oct 2021 08:30:00 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=bombadil.20210309 header.b=o7THTnaL; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230329AbhJ1P3o (ORCPT + 99 others); Thu, 28 Oct 2021 11:29:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45288 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230201AbhJ1P3n (ORCPT ); Thu, 28 Oct 2021 11:29:43 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F3772C061570; Thu, 28 Oct 2021 08:27:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=C25FBrHsCS4SYuLkvj36k8rSA/hCmYxj6KRyZJNajPM=; b=o7THTnaL+L3FfKjMLmtHwiKh3K SfxqvG7VqrnusU2O/m3zIwbHf67bF2KwWWZYPgW4oJLG51CaaqwCL2OUU4/gRIqrHbMmW64c/atOI Y64srbXUmLbBuFGLel56CeFY4R7JqQIOz1Puo1ui8CeqHJty8oyrPNXyB3DoZCvISQIai0cmP8LPO cQnFhTDfQE8ox+7MSKHTDeqTc9c8RwCU9JQ1ZSkEhn731GlnrTHAuE2ht210qKNC8bFp8lVEiVaEQ rCW5JIJ5GBbeD+mOlJO3CN+CDrRMoew7IVyOS6L/zpBm58OfZeSfBncDr/GfMTZGpkYjt40xQ3jxA DV58QM1g==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1mg7J6-008PEq-Do; Thu, 28 Oct 2021 15:27:08 +0000 Date: Thu, 28 Oct 2021 08:27:08 -0700 From: Christoph Hellwig To: James Bottomley Cc: daejun7.park@samsung.com, ALIM AKHTAR , "avri.altman@wdc.com" , "martin.petersen@oracle.com" , "huobean@gmail.com" , "bvanassche@acm.org" , Keoseong Park , "linux-scsi@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] scsi: ufs: Fix proper API to send HPB pre-request Message-ID: References: <20211027223619epcms2p60bbc74c9ba9757c58709a99acd0892ff@epcms2p6> <0f9229c3c4c7859524411a47db96a3b53ac89c90.camel@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0f9229c3c4c7859524411a47db96a3b53ac89c90.camel@linux.ibm.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 28, 2021 at 10:28:01AM -0400, James Bottomley wrote: > If the block people are happy with this, then I'm OK with it, but it > doesn't look like you've solved the fanout deadlock problem because > this new mechanism is still going to allocate a new tag. Yes, same problem as before.