Messages in this thread | | | Date | Sat, 18 Mar 2006 00:36:40 +1100 | From | Nick Piggin <> | Subject | Re: [patch 2/2] mspec driver |
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Jes Sorensen wrote:
> +static int > +mspec_mmap(struct file *file, struct vm_area_struct *vma, int type)
...
> + vma->vm_flags |= (VM_IO | VM_LOCKED | VM_RESERVED | VM_PFNMAP);
VM_PFNMAP actually has a fairly specific meaning [unlike the rest of them :)] so you should be careful with it. Actually if you set vm_pgoff in the right way, then that should enable you to do COWs on these areas if that is what you want.
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