> >> dev_t rdev;
>
> > Reasonable.
>
> Good. We all agree.
> (But now you see what I meant in comments about mknod.)
>
> >> kdev_t dev;
>
> > Useless. If you hope that block_device will help to solve rmmod races
>
> Yes. Why am I mistaken?
Because the problems begin in subsystems. Solving the situation with
block_device_operations is trivial. It's stuff on the character side that
is going to bite you big way. TTY drivers, for example. They are below
the layer where your kdev_t lives.
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