On Wed, 20 Mar 2002, Alfred Perlstein wrote:
>
> That depends on what this implies. :)
>
> Does it mean that when giving M_NOWAIT there's a chance it may fail
> more often than the old zone allocator? Meaning does M_NOWAIT mean
> "only allocate from cache" or do you do close to the same thing that
> the zone allocator does except in a more flexible manner?
>
> Sorry if the question is niave, I'm not extremely familiar with the
> previous and current code.
>
Currently it means, if I can't get KVA or a page to back it, return NULL.
It just stops operations that would REALLY block. The old code reserved
the KVA up front and just found a page at interrupt time.
Jeff
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