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xen: set vma flag VM_PFNMAP in the privcmd mmap file_op

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Set VM_PFNMAP in the privcmd mmap file_op, rather than later in
xen_remap_domain_mfn_range when it is too late because
vma_wants_writenotify has already been called and vm_page_prot has
already been modified.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Stefano Stabellini
2010-11-11 12:37:43 -08:00
committed by Jeremy Fitzhardinge
parent 313e744121
commit e060e7af98
2 changed files with 5 additions and 3 deletions
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arch/x86/xen/mmu.c
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@ -2299,7 +2299,8 @@ int xen_remap_domain_mfn_range(struct vm_area_struct *vma,
prot = __pgprot(pgprot_val(prot) | _PAGE_IOMAP);
vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP;
BUG_ON(!((vma->vm_flags & (VM_PFNMAP | VM_RESERVED | VM_IO)) ==
(VM_PFNMAP | VM_RESERVED | VM_IO)));
rmd.mfn = mfn;
rmd.prot = prot;