On Sat, 2006-02-25 at 16:54, Christoph Hellwig wrote:
> On Thu, Feb 23, 2006 at 11:19:40AM +0800, Zhang, Yanmin wrote:
> > From: Zhang, Yanmin <[email protected]>
> >
> > 2.6.16-rc3 uses hugetlb on-demand paging, but it doesn?t support hugetlb
> > mprotect. My patch against 2.6.16-rc3 enables this capability.
>
> Adding another special case for hugetlb pages sounds rather bad. Could
> you try adding a mrotect vm_area_operation if that works out cleaner?
I don't quite understand your idea. vm_operations_struct has no mprotect function
pointer. Could you elaborate it?
In current kernel, sys_mprotect would bypass hugetlb if (is_vm_hugetlb_page(vma)).
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