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Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements

From Christoph Hellwig <hch@infradead.org>
Newsgroups linux.kernel
Subject Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements
Date 2016-09-15 14:50 +0200
Message-ID <shEh4-75Z-35@gated-at.bofh.it> (permalink)
References (5 earlier) <shDXI-6Zf-33@gated-at.bofh.it> <shDXI-6Zf-31@gated-at.bofh.it> <shE7n-72q-7@gated-at.bofh.it> <shE7n-72q-17@gated-at.bofh.it> <shE7n-72q-15@gated-at.bofh.it>
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On Thu, Sep 15, 2016 at 01:39:11PM +0100, Alex Bligh wrote:
> That's probably right in the case of file-based back ends that
> are running on a Linux OS. But gonbdserver for instance supports
> (e.g.) Ceph based backends, where each connection might be talking
> to a completely separate ceph node, and there may be no cache
> consistency between connections.

Yes, if you don't have a cache coherent backend you are generally
screwed with a multiqueue protocol.

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Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Wouter Verhelst <w@uter.be> - 2016-09-09 22:20 +0200
  Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Wouter Verhelst <w@uter.be> - 2016-09-09 23:00 +0200
    Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Jens Axboe <axboe@kernel.dk> - 2016-09-10 01:40 +0200
  Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Wouter Verhelst <w@uter.be> - 2016-09-15 13:00 +0200
    Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Alex Bligh <alex@alex.org.uk> - 2016-09-15 13:20 +0200
      Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Wouter Verhelst <w@uter.be> - 2016-09-15 13:40 +0200
        Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Christoph Hellwig <hch@infradead.org> - 2016-09-15 13:50 +0200
          Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Alex Bligh <alex@alex.org.uk> - 2016-09-15 13:50 +0200
            Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Christoph Hellwig <hch@infradead.org> - 2016-09-15 14:00 +0200
              Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Wouter Verhelst <w@uter.be> - 2016-09-15 14:10 +0200
                Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Christoph Hellwig <hch@infradead.org> - 2016-09-15 14:30 +0200
                Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Christoph Hellwig <hch@infradead.org> - 2016-09-15 14:30 +0200
                Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Wouter Verhelst <w@uter.be> - 2016-09-15 14:30 +0200
              Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Alex Bligh <alex@alex.org.uk> - 2016-09-15 14:10 +0200
      Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Christoph Hellwig <hch@infradead.org> - 2016-09-15 13:40 +0200
      Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Eric Blake <eblake@redhat.com> - 2016-09-15 15:40 +0200
        Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Paolo Bonzini <pbonzini@redhat.com> - 2016-09-15 16:10 +0200
          Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Alex Bligh <alex@alex.org.uk> - 2016-09-15 17:30 +0200
            Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Paolo Bonzini <pbonzini@redhat.com> - 2016-09-15 23:20 +0200
        Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Alex Bligh <alex@alex.org.uk> - 2016-09-15 17:30 +0200
    Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Christoph Hellwig <hch@infradead.org> - 2016-09-15 13:50 +0200
      Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Alex Bligh <alex@alex.org.uk> - 2016-09-15 14:00 +0200
    Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Alex Bligh <alex@alex.org.uk> - 2016-09-15 13:50 +0200
    Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Wouter Verhelst <w@uter.be> - 2016-09-15 14:00 +0200
      Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Christoph Hellwig <hch@infradead.org> - 2016-09-15 14:10 +0200
        Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Alex Bligh <alex@alex.org.uk> - 2016-09-15 14:20 +0200
          Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Christoph Hellwig <hch@infradead.org> - 2016-09-15 14:20 +0200
            Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Alex Bligh <alex@alex.org.uk> - 2016-09-15 14:30 +0200
        Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Wouter Verhelst <w@uter.be> - 2016-09-15 14:30 +0200
          Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Christoph Hellwig <hch@infradead.org> - 2016-09-15 14:30 +0200
            Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Alex Bligh <alex@alex.org.uk> - 2016-09-15 14:40 +0200
              Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Alex Bligh <alex@alex.org.uk> - 2016-09-15 14:40 +0200
                Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Christoph Hellwig <hch@infradead.org> - 2016-09-15 14:50 +0200
                Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Alex Bligh <alex@alex.org.uk> - 2016-09-15 14:50 +0200
                Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Wouter Verhelst <w@uter.be> - 2016-09-15 15:20 +0200
                Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Alex Bligh <alex@alex.org.uk> - 2016-09-15 17:20 +0200
                Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Alex Bligh <alex@alex.org.uk> - 2016-09-15 18:10 +0200
                Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Wouter Verhelst <w@uter.be> - 2016-09-15 18:30 +0200
                Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Alex Bligh <alex@alex.org.uk> - 2016-09-15 18:50 +0200
                Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Eric Blake <eblake@redhat.com> - 2016-09-15 21:10 +0200
              Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Christoph Hellwig <hch@infradead.org> - 2016-09-15 14:40 +0200
    Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Christoph Hellwig <hch@infradead.org> - 2016-09-15 14:20 +0200

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