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On Tue, 16 Jan 2001, Ingo Molnar wrote:
>
> yep, correct. But take a look at the trick it does with file descriptors,
> i believe it could be a useful way of doing things. It basically
> privatizes a struct file, without inserting it into the enumerated file
> descriptors. This shows that 'native files' are possible: file struct
> without file descriptor integers mapped to them.

That's nothing new: the exec() code does exactly the same.

In fact, there's a function for it: filp_open() and filp_close(). Which do
a better job of it than your private implementation did, I suspect.

I don't think your object fingerprints are anything more generic than the
current file descriptors.

Linus

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