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DMAPI patches for 2.6.9-rc1

Index: bk-2.6-d/include/linux/mm.h
===================================================================
--- bk-2.6-d.orig/include/linux/mm.h	2004-09-03 10:27:09.843535145 -0500
+++ bk-2.6-d/include/linux/mm.h	2004-09-03 10:45:34.649087582 -0500
@@ -175,6 +175,8 @@ struct vm_operations_struct {
 	void (*close)(struct vm_area_struct * area);
 	struct page * (*nopage)(struct vm_area_struct * area, unsigned long address, int *type);
 	int (*populate)(struct vm_area_struct * area, unsigned long address, unsigned long len, pgprot_t prot, unsigned long pgoff, int nonblock);
+#define HAVE_VMOP_MPROTECT
+	int (*mprotect)(struct vm_area_struct * area, unsigned int newflags);
 #ifdef CONFIG_NUMA
 	int (*set_policy)(struct vm_area_struct *vma, struct mempolicy *new);
 	struct mempolicy *(*get_policy)(struct vm_area_struct *vma,
Index: bk-2.6-d/mm/mprotect.c
===================================================================
--- bk-2.6-d.orig/mm/mprotect.c	2004-09-03 10:27:14.895266298 -0500
+++ bk-2.6-d/mm/mprotect.c	2004-09-03 10:45:34.667086649 -0500
@@ -265,6 +265,11 @@ sys_mprotect(unsigned long start, size_t
 		if (error)
 			goto out;
 
+		if (vma->vm_ops && vma->vm_ops->mprotect) {
+			error = vma->vm_ops->mprotect(vma, newflags);
+			if (error < 0)
+				goto out;
+		}
 		tmp = vma->vm_end;
 		if (tmp > end)
 			tmp = end;