Messages in this thread | | | Date | Thu, 6 Jan 2005 15:58:30 -0800 | From | William Lee Irwin III <> | Subject | Re: page migration patchset |
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Andi Kleen wrote: >> You need lazy hugetlbfs to use it (= allocate at page fault time, >> not mmap time). Otherwise the policy can never be applied. I implemented >> my own version of lazy allocation for SLES9, but when I wanted to >> merge it into mainline some other people told they had a much better >> singing&dancing lazy hugetlb patch. So I waited for them, but they >> never went forward with their stuff and their code seems to be dead >> now. So this is still a dangling end :/ >> If nothing happens soon regarding the "other" hugetlb code I will >> forward port my SLES9 code. It already has NUMA policy support. >> For now you can remove the hugetlb policy code from mainline if you >> want, it would be easy to readd it when lazy hugetlbfs is merged.
On Thu, Jan 06, 2005 at 03:43:39PM -0800, Steve Longerbeam wrote: > if you don't mind I'd like to. Sounds as if lazy hugetlbfs would be > able to make use of the generic file mapping->policy instead of a > hugetlb-specific policy anyway. Same goes for shmem.
If Andi's comments refer to my work, it already got permavetoed.
Anyway, using the vma's is a minor change. Please include this as a patch separate from other changes (fault handling, consolidations, etc.)
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