Received: by 2002:a25:1985:0:0:0:0:0 with SMTP id 127csp1267304ybz; Wed, 22 Apr 2020 17:13:00 -0700 (PDT) X-Google-Smtp-Source: APiQypJ8Wys6ZIzmTyh9XiB894f3AFhBPLwOlHBL819vLlAFa8NgC16c8+fDEIR0lgJjDMuCZAIT X-Received: by 2002:a17:907:9c4:: with SMTP id bx4mr602000ejc.199.1587600780360; Wed, 22 Apr 2020 17:13:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1587600780; cv=none; d=google.com; s=arc-20160816; b=wbxOICrIIOKMgcSF3iAVBS/ikwzopLUH16XfIGpB1wBSTmlyptlo2tpI3BPwZURHx8 qLnKChR2+S0czbsMq20zKz0BbHQcCs9D2YPjhMUaZd+PKfaWclHxs5FBStxPOl9gcVQu lpa7y9oYfzDl8Us2jAwPHGDE7Pnmb9RUBW2KpGNsXwV+dDrh1Erpp8tCEMYLDbxpFxMA ZjJP2V91ph4mRhpi4FRKpaQPPKhU6b2g6mPVc3x0MxYjomaiCKzSCOExE12coVhuotpe k9VxP8wMMlGPFT2zETJ63ZnoY6asd9DRhoYX+LNhGEPq40fKvhLhlwEH4bdPmlbPFYxu Rydw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:cc:to:subject; bh=sm2s9oTr54AuFPui/oDg5EqpKZfyC2+O0n8zH1kfUfU=; b=euqbz9z5hLUie0EbSPN9Ls/yK0f9q9J4/wqB1gxeO27qk/3k/GLS+LUcwHKgu9vmAz nDqOBT6h4ECuGJLQezOqXLo3xc4lEaHXWlp21DPrW4x/uF4ds7gJV9VPJaY/kOfH+hZY FWv2VURLYCChjZszCrUhuPPFs+9VfyxOhSzLvrFNqVrV5gqk9cZryttS+x/gmcXv0aW0 4gPh8EDqYhE2/9gm83NTQEhvCCallWfQerv0oocJQGNNir83qHkRNHzgqbufp1nQNRn4 HNYCMggdq+KT88Xwp36dfhn5orMTScMLIuGR0kaL6W9LMj8vcHca+eIYus/BZi6KPCcM gA0Q== ARC-Authentication-Results: i=1; mx.google.com; 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 b3si379437eja.341.2020.04.22.17.12.37; Wed, 22 Apr 2020 17:13:00 -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; 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 S1726200AbgDWAJG (ORCPT + 99 others); Wed, 22 Apr 2020 20:09:06 -0400 Received: from mail-pg1-f196.google.com ([209.85.215.196]:40430 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725854AbgDWAJG (ORCPT ); Wed, 22 Apr 2020 20:09:06 -0400 Received: by mail-pg1-f196.google.com with SMTP id n16so1944485pgb.7; Wed, 22 Apr 2020 17:09:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=sm2s9oTr54AuFPui/oDg5EqpKZfyC2+O0n8zH1kfUfU=; b=FOYd160y9Cfutu0h5hPjR+WOk+Ohy3nCaI3mp7dxbN4S8U6y2NngDnuk5TIqrXECTy jGR0XtKH2RtZA5JhBBLzPw+OANIC6WZa+8tVSd1Erj3hpNVIrrzS9oUvve8Zfb1oEWDi JFk1Os/mHre7s7Y/Gcj7joOzRItczg2bCl8KK1580V2/W1WOMHbEwEBXkS0GVnY4SKVC aubqNSDk2pFOIZNCOppwa3bOwLYtleHZFyd3oqLNbu96dOr1rbdG27kVoFiiuToFzJCp d5vvEgP2xYxQHdzt7Zu7Jf4Bs5sDjLoi5DxgDqPQhxyXvgsiBdfJmAqSElZXQUBnvIpD bWrg== X-Gm-Message-State: AGi0PubuWZAdjOZyIWgMUA9eGxkKHZ5UxMD2BhYcEwyD4Tga4oesuYpQ n3aqgXUjK4I37LW/HT4SZtfL7FjL8G8= X-Received: by 2002:a63:564e:: with SMTP id g14mr1527375pgm.63.1587600545568; Wed, 22 Apr 2020 17:09:05 -0700 (PDT) Received: from [100.124.12.67] ([104.129.198.228]) by smtp.gmail.com with ESMTPSA id z5sm644931pfn.142.2020.04.22.17.09.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 22 Apr 2020 17:09:04 -0700 (PDT) Subject: Re: [PATCH 4/9] bdi: add a ->dev_name field to struct backing_dev_info To: Christoph Hellwig , axboe@kernel.dk Cc: yuyufen@huawei.com, tj@kernel.org, jack@suse.cz, tytso@mit.edu, hdegoede@redhat.com, gregkh@linuxfoundation.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org References: <20200422073851.303714-1-hch@lst.de> <20200422073851.303714-5-hch@lst.de> From: Bart Van Assche Message-ID: Date: Wed, 22 Apr 2020 17:09:02 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <20200422073851.303714-5-hch@lst.de> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 4/22/20 12:38 AM, Christoph Hellwig wrote: > Cache a copy of the name for the life time of the backing_dev_info > structure so that we can reference it even after unregistering. Reviewed-by: Bart Van Assche