On 10/22/2015 09:35 PM, Eric W. Biederman wrote:
Daniel Borkmann <dan...@iogearbox.net> writes:
On 10/20/2015 08:56 PM, Eric W. Biederman wrote:
...
Just FYI: Using a device for this kind of interface is pretty
much a non-starter as that quickly gets you into situations where
things do not work in containers. If someone gets a version of device
namespaces past GregKH it might be up for discussion to use character
devices.
Okay, you are referring to this discussion here:
http://thread.gmane.org/gmane.linux.kernel.containers/26760
That is a piece of it. It is an old old discussion (which generally has
been handled poorly). For the forseeable future device namespaces have
a firm NACK by GregKH. Which means that dynamic character device based
interfaces do not work in containers. Which means if you are not
talking about physical hardware, character devices are a poor fit.
Yes, it breaks down with real namespace support. Reworking the set with
an improved version of the fs code is already in progress.
Thanks,
Daniel
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