On Thu, Feb 02, 2006 at 04:26:52AM +0100, joerg@britannica.bec.de wrote:
> 
> You mean an one-shot modus? 

Yes, from vague memory the shutdown hooks operate like this.

>I'd say make the hook-removal O(1) with
> small O(1) and it can be implemented completely via a wrapper function.
> 

Something like that would do the trick.

> 
> Can you give an example of why this is needed? I can think of situations
> where you want to add a new hook at the end or the beginning of the
> current list, but no need to traverse the list backwards.
> 

As Dan noted, mount hooks are run in the reverse order they are
registered, this makes a lot of sense if you have layered file systems
mounted.

-- 
Brett Lymn