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Re: [Nbd] How to find a free NBD device?

On Mon, Mar 03, 2014 at 06:41:47PM +0100, Andreas Klauer wrote:
> Is there something I'm missing?

Sorry, I see this has been discussed earlier on this list:


Another thing I found is a patch for qemu-nbd:
(the patch didn't seem to make it though)


That patch discussion also mentions a NBD_SET_LOCK but I could not 
find any other reference to that...

So the method seems to be:

1) check /proc/partitions
2) check /sys/block/nbd*/pid
3) lock your own program and hope no-one is racing you

Is that it?


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