Andi Kleen wrote:

quoted

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.)


-- wli
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