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Re: nbd structured reply

On Fri, Sep 22, 2017 at 05:57:07PM +0300, Vladimir Sementsov-Ogievskiy wrote:
> The obvious behavior of client is to fail the whole read if it received one
> error chunk.

Not necessarily.

If a user-space program requests to read X bytes of data, but there is
an error at X-N, then the obvious way to handle that is for the read()
call to return with X-N bytes first, and for the next read() call to
return with -1, and errno set to EIO.

Structured reads allow for that kind of behaviour.

Could you people please use IRC like normal people?!?

  -- Amaya Rodrigo Sastre, trying to quiet down the buzz in the DebConf 2008

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