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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 91C27C46467 for ; Wed, 4 Jan 2023 22:31:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240347AbjADWbl (ORCPT ); Wed, 4 Jan 2023 17:31:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48872 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240297AbjADWbh (ORCPT ); Wed, 4 Jan 2023 17:31:37 -0500 Received: from mail-pf1-f169.google.com (mail-pf1-f169.google.com [209.85.210.169]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BE4ECC778; Wed, 4 Jan 2023 14:31:35 -0800 (PST) Received: by mail-pf1-f169.google.com with SMTP id a184so13173075pfa.9; Wed, 04 Jan 2023 14:31:35 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=rE/XSL3eCp2mV2wORWtmG2PyI2xCMLuVm583jQV+GOw=; b=vm0irkdtNVTpJOWpYL1nMVsUuTflR/PEGO+nnFeKEhjOOOPrIwNQcjPlYbO3UZI9nz Pju1unUOgFy2CVTHBbLO4V1zG+y318PhQTV2ioJogGpoYZsK6HIUgWRrECGZnpcLkqTQ xKVcKskX+GwPE/v0NsNUdVEEGOFtGLWZL13ZKRDmopA3S94WWghF7L2id+2jUUU5fEnu jm4xIkx6fqygFKtPOXtufmxammFp6fnzxGGFXDRCoRX8KLyLJ6It19YJyM/pSg9Mfxw3 Kbzi6lA8PUCD7IfrsCY/WQ1flU+OWhrakHp/vixyQY0uIXzJvq5byTEXK3n9OEUcAHVc DC0A== X-Gm-Message-State: AFqh2ko5tl+NW0A5eeT4PC8/yb9ybhYdPLYv3OAzUKZir2AhfvMug+kz kkCPz2Sq+ZA9Y+69+2p2xu8= X-Google-Smtp-Source: AMrXdXv8NcxogYPwXAxiLkK2N+rGKjTZjehxFMMTGR681zYPUVvThikpNmHpuoJhgExHnDWpuoq5Dg== X-Received: by 2002:aa7:8b1a:0:b0:582:26bc:a75b with SMTP id f26-20020aa78b1a000000b0058226bca75bmr15743628pfd.9.1672871494911; Wed, 04 Jan 2023 14:31:34 -0800 (PST) Received: from [192.168.51.14] ([98.51.102.78]) by smtp.gmail.com with ESMTPSA id f3-20020aa79d83000000b0058193135f6bsm13978144pfq.84.2023.01.04.14.31.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 04 Jan 2023 14:31:33 -0800 (PST) Message-ID: <3db8c140-2e4e-0d75-4d81-b2c1f22f68d1@acm.org> Date: Wed, 4 Jan 2023 14:31:31 -0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.4.0 Subject: Re: [PATCH] scsi: ufs: core: fix devfreq deadlocks Content-Language: en-US To: Asutosh Das Cc: Johan Hovold , "James E.J. Bottomley" , "Martin K. Petersen" , Alim Akhtar , Avri Altman , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Can Guo References: <20221222102121.18682-1-johan+linaro@kernel.org> <85e91255-1e6f-f428-5376-08416d2107a2@acm.org> <20230104141045.GB8114@asutoshd-linux1.qualcomm.com> From: Bart Van Assche In-Reply-To: <20230104141045.GB8114@asutoshd-linux1.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org On 1/4/23 06:10, Asutosh Das wrote: > Load based toggling of WB seemed fine to me then. > I haven't thought about another method to toggle WriteBooster yet. > Let me see if I can come up with something. > IMT if you have a mechanism in mind, please let me know. Hi Asutosh, Which UFS devices need this mechanism? All UFS devices I'm familiar with can achieve wire speed for large write requests without enabling the WriteBooster. Thanks, Bart.