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Tue, 14 Sep 2021 03:02:41 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwFPbkInbNHeLt2p78iRwJn+B2bID6pjUJk3cFaHeYJQQ/yVSBFZFlK6s9peXOsDKooiKY5vg== X-Received: by 2002:a7b:cf09:: with SMTP id l9mr1197354wmg.115.1631613761403; Tue, 14 Sep 2021 03:02:41 -0700 (PDT) Received: from dresden.str.redhat.com ([2a02:908:1e42:9e20:fd73:7ee2:9975:24d9]) by smtp.gmail.com with ESMTPSA id c9sm10595739wrf.77.2021.09.14.03.02.40 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 14 Sep 2021 03:02:40 -0700 (PDT) Subject: Re: [qemu-web PATCH] Update FUSE block export blog post To: Eric Blake References: <20210906162916.21714-1-hreitz@redhat.com> <20210907175216.dze5fvinpo5pxlt2@redhat.com> From: Hanna Reitz Message-ID: <54f35e50-0276-76b2-070c-74132a9d4201@redhat.com> Date: Tue, 14 Sep 2021 12:02:40 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <20210907175216.dze5fvinpo5pxlt2@redhat.com> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=hreitz@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Received-SPF: pass client-ip=170.10.133.124; envelope-from=hreitz@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -51 X-Spam_score: -5.2 X-Spam_bar: ----- X-Spam_report: (-5.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.398, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-1.969, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Klaus Kiwi , Paolo Bonzini , Thomas Huth , qemu-devel@nongnu.org, Stefan Hajnoczi Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 07.09.21 19:52, Eric Blake wrote: > On Mon, Sep 06, 2021 at 06:29:16PM +0200, Hanna Reitz wrote: >> Because I forgot to CC Thomas on the discussion adding this post, it was >> merged prematurely. This patch updates the post to incorporate the >> feedback I received on it: >> > Overall, nice! I see it's already live, but another tweak you might > want to make: > >> +## File mounts >> >> -A perhaps little-known fact is that, on Linux, filesystems do not need to have >> -a root directory, they only need to have a root node. A filesystem that only >> -provides a single regular file is perfectly valid. >> +To transparently translate a file into a different format, like we did above, we >> +make use of two little-known facts about filesystems and the VFS on Linux. The >> +first one of these we can explain immediately, for the second one we will need >> +some more information about how FUSE exports work, so that secret will be lifted > s/lifted/revealed/ Ah, yes.  I don’t think I’ll send another update just for this, but I will include it if I need to send an update for some other reason. Hanna