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authorStefano Stabellini <stefano.stabellini@eu.citrix.com>2010-11-11 12:37:43 -0800
committerJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2010-11-11 12:37:43 -0800
commite060e7af98182494b764d002eba7fa022fe91bdf (patch)
tree556b1a8c0d5cddf245c18bf220259691fb8f31d3 /arch/x86/xen/mmu.c
parent313e74412105c670ff8900ec8099a3a5df1fa83c (diff)
downloadlinux-linaro-android-e060e7af98182494b764d002eba7fa022fe91bdf.tar.gz
xen: set vma flag VM_PFNMAP in the privcmd mmap file_op
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>
Diffstat (limited to 'arch/x86/xen/mmu.c')
-rw-r--r--arch/x86/xen/mmu.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index f08ea045620..792de4349c7 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -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;