RE: [patch] remove hugetlb syscalls

Seth, Rohit
2002-11-14T22:05:25Z

> -----Original Message-----
> From: William Lee Irwin III [mailto:wli@holomorphy.com]
> >
> On Thu, Nov 14, 2002 at 12:11:32PM -0800, Rohit Seth wrote:
> > This is not the problem with MAP_SHARED. It is the lack of (arch
> > specific) hugepage aligned function support in the kernel.
> You can use
> > the mmap on hugetlbfs using only MAP_FIXED with properly aligned
> > addresses (but then this also is only a hint to kernel).
> With addr ==
> > NULL in mmap, the function is bound to fail almost all the times.
>
> There's very little standing in the way of automatic
> placement. If in your opinion it should be implemented, I'll
> add that feature today.
>
mmap with addr==NULL is in my opinion a very useful thing.

> IIRC you mentioned you would like to export the arch-specific
> hugepage-aligned vma placement functions; once these are
> available, it should be trivial to reuse them.
>
>
I will export those functions from arch specific trees.