* Linus Torvalds <[email protected]> wrote:
> And the whole "lock things down in memory" approach is bad. It's doing
> expensive things like mlock(), making the overhead for _single_ system
> calls much more expensive. [...]
hm, there must be some misunderstanding here. That mlock is /only/ once
per the lifetime of the whole 'head' - i.e. per sys_async_register().
(And you can even forget i ever did it - it's 5 lines of code to turn
the completion ring into a swappable entity.)
never does any MMU trick ever enter the picture during the whole
operation of this thing, and that's very much intentional.
Ingo
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