Paolo, On 12 Feb 2013, at 18:06, Paolo Bonzini wrote:
> Il 12/02/2013 18:37, Alex Bligh ha scritto: >> For my education, why remove the FUA stuff? > > Because I had no way to test it. I think my mods to the official NBD code support FUA (albeit not very efficiently) >>>>>> Hmmm... the underlying storage could be md/dm RAIDs in which case FUA >>>>>> should be cheaper than FLUSH. >>>> >>>> If someone ever wrote a virtio-blk backend that sits directly ontop >>>> of the Linux block layer that would be true. >> In this case we don't know what the backend is sitting on top of >> a-priori. It might be the current nbd server code, but it might >> not be. > > Do you know of any other NBD server than the "official" one and qemu-nbd? Yes. I know one well (but it's not open source). NBD seems to be the 'goto protocol' for writing distributed block store drivers in user space. -- Alex Bligh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
