Re: [VFS] move active filesystem

[Chris Wedgwood <chris@cybernet.co.nz>]

> Not really. We obviously can, but not in O(1).

Indeed... but not for arbitrary pages (eg. locked by other
susbsystems, drivers or applications)

> I could just add the logic to have the information in O(1), but
> then you must know that at every allocation you'll have to insert a
> entry in a queue, and remove an entry from a queue at every
> umapping/freeing of memory. Anyway I'll think I'll do that very
> soon to improve and simplify a lot my update_shared_mappings and
> many other similar thing in order to handle all such things in
> O(1).

Won't this be fairly expensive?





-cw
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