---
 arch/x86_64/mm/pat.c     |   26 ++++++++++++++++++++++++++
 include/asm-x86_64/pat.h |    2 ++
 2 files changed, 28 insertions(+)

Index: linux/arch/x86_64/mm/pat.c
===================================================================
--- linux.orig/arch/x86_64/mm/pat.c
+++ linux/arch/x86_64/mm/pat.c
@@ -226,3 +226,29 @@ int free_mattr(u64 start, u64 end, unsig
 	return err;
 }
 
+static struct vm_operations_struct mattr_vmops = {
+	.close = free_mattr_vma,
+};
+
+/* Note that if there is already a vm_ops caller has to ensure
+   free_mattr_vma is called in its close functin. */
+int reserve_mattr_vma(struct vm_area_struct *vma)
+{
+	u64 addr = (u64)vma->vm_pgoff << PAGE_SHIFT;
+	int err;
+	err = reserve_mattr(addr, addr + vma->vm_end - vma->vm_start,
+		 	    pgprot_nonstd(vma->vm_page_prot), NULL);
+	if (err)
+		return err;
+	if (!vma->vm_ops)
+		vma->vm_ops = &mattr_vmops;
+	return 0;
+}
+
+void free_mattr_vma(struct vm_area_struct *vma)
+{
+	u64 addr = (u64)vma->vm_pgoff << PAGE_SHIFT;
+	free_mattr(addr, addr + vma->vm_end - vma->vm_start,
+		   pgprot_nonstd(vma->vm_page_prot));
+}
+
Index: linux/include/asm-x86_64/pat.h
===================================================================
--- linux.orig/include/asm-x86_64/pat.h
+++ linux/include/asm-x86_64/pat.h
@@ -7,6 +7,8 @@
 
 int reserve_mattr(u64 start, u64 end, unsigned long attr, unsigned long *fattr);
 int free_mattr(u64 start, u64 end, unsigned long attr);
+int reserve_mattr_vma(struct vm_area_struct *vma);
+void free_mattr_vma(struct vm_area_struct *vma);
 
 #endif