Andi Kleen wrote:
I agree, I even started prototyping something a year ago, but ran out of time. One tricky point are directory dentries: As far as I see, they are pinned and unfreeable if a (freeable) directory entry is in the cache.The slab datastructures are not completely suited for this right now, but it could be done by using one more of the list_heads in struct page for slab backing pages.
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