Re: Autofs: Need UID & VFS hook, security notice

[H. Peter Anvin]

Richard Stallman wrote:
>     >
>     > Do these changes seem reasonable, and if a VFS change is required,
>     > possible before the release of kernel 2.4?
>     >
> 
>     Not a chance in hell.  Putting it in the VFS would slow down *every
>     access*, even to non-removable devices.
> 
> Why would a VFS feature for handling ejection slow things down even
> when ejection does not occur?
>

Additional locks required, for one thing.  You really don't want to do
this in the VFS; rather as a shim on the block device level.

        -hpa

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