Re: compat: autofs v5 packet size ambiguity - update

[Linus Torvalds]

On Wed, Feb 22, 2012 at 1:32 AM, Ian Kent <raven@xxxxxxxxxx> wrote:
>
> Oh, DOH ...
>
> The process mounting the autofs mount is passing the pipe it will use
> for communication via a mount option so we can do this right in
> fill_super.

No, we really cannot.

The autofs "mount" is done by fork + execve("mount").

So fill_super doesn't actually see the *daemon*. It sees the mount binary.

So if you have a 64-bit mount binary, and a 32-bit daemon, you're screwed again.

                     Linus
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