On Mon, 24 Aug 1998 10:05:56 -0700 (PDT), Linus Torvalds
<torvalds@transmeta.com> said:
> The avl code didn't have any replacement, but was removed because it no
> longer mattered for the common case (which was verify_area() - now
> thankfully gone).
> I would try a one-entry cache, that's probably fine for all common uses.
Electric Fence is a special case. Since it generates large mms with
lots of single-page vmas, a one-entry cache is going to have very little
effect; most operations are going to be random insert/delete operations
to the chain or single page demand-zeros.
A single-entry cache will certainly help for the common case, but it's
not the common case which is the problem.
--Stephen
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