Linux Kernel readlink equivalent

[Valdis.Kletnieks at vt.edu]

On Fri, 30 Jan 2015 11:02:01 -0500, David Legault said:

> the idea was to load a module passing the path as a module argument so I
> could access the underlying block device through the link without having to
> worry about the real block device path.

I hope you realize that scribbling on a block device without making *damned*
sure you're talking to the right *real* block device is just asking for
data corruption, right?

What problem are you *really* trying to solve here?  It sounds like your design
has some serious layering violations....
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