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sh: Move page table allocation out of line

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We also switched away from quicklists and instead moved to slab
caches. After benchmarking both implementations the difference is
negligible. The slab caches suit us better though because the size of a
pgd table is just 4 entries when we're using a 3-level page table layout
and quicklists always deal with pages.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
This commit is contained in:
Matt Fleming 2009-12-31 12:19:24 +00:00
commit 2a5eacca85
6 changed files with 66 additions and 78 deletions
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