Jes Sorensen wrote:
"Nick" == Nick Piggin <nickpiggin@xxxxxxxxxxxx> writes:Nick> Jes Sorensen wrote:+ vma->vm_flags |= (VM_IO | VM_LOCKED | VM_RESERVED | VM_PFNMAP);Nick> VM_PFNMAP actually has a fairly specific meaning [unlike the Nick> rest of them :)] so you should be careful with it. Actually if Nick> you set vm_pgoff in the right way, then that should enable you Nick> to do COWs on these areas if that is what you want. Yup, I went through that when I started using it. I think you guided me through it :-) We don't want COW here as the access is backed by special behavior in the memory controller. We only allow shared mappings for that reason.
No problem, I think you should just stop using the VM_PFNMAP flag then. [Linus should jump in here if I'm wrong ;)] -- SUSE Labs, Novell Inc.Send instant messages to your online friends http://au.messenger.yahoo.com -
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