diff -uNr -Xdontdiff -p linux-2.4.19/include/linux/miscdevice.h linux-2.4-xfs/include/linux/miscdevice.h
--- linux-2.4.19/include/linux/miscdevice.h	Thu Sep  5 13:38:33 2002
+++ linux-2.4-xfs/include/linux/miscdevice.h	Wed Sep  4 22:21:04 2002
@@ -19,6 +19,7 @@
 #define RTC_MINOR 135
 #define EFI_RTC_MINOR		136	/* EFI Time services */
 #define SUN_OPENPROM_MINOR 139
+#define DMAPI_MINOR		140	/* DMAPI */
 #define NVRAM_MINOR 144
 #define I2O_MINOR 166
 #define MICROCODE_MINOR		184
diff -uNr -Xdontdiff -p linux-2.4.19/include/linux/mm.h linux-2.4-xfs/include/linux/mm.h
--- linux-2.4.19/include/linux/mm.h	Thu Sep  5 13:38:40 2002
+++ linux-2.4-xfs/include/linux/mm.h	Wed Sep  4 22:20:09 2002
@@ -132,6 +132,8 @@ struct vm_operations_struct {
 	void (*open)(struct vm_area_struct * area);
 	void (*close)(struct vm_area_struct * area);
 	struct page * (*nopage)(struct vm_area_struct * area, unsigned long address, int unused);
+#define HAVE_VMOP_MPROTECT
+	int (*mprotect)(struct vm_area_struct * area, unsigned int newflags);
 };
 
 /*
diff -uNr -Xdontdiff -p linux-2.4.19/mm/mprotect.c linux-2.4-xfs/mm/mprotect.c
--- linux-2.4.19/mm/mprotect.c	Thu Sep  5 13:41:57 2002
+++ linux-2.4-xfs/mm/mprotect.c	Thu Jul 11 19:14:53 2002
@@ -300,6 +300,11 @@ asmlinkage long sys_mprotect(unsigned lo
 			goto out;
 		}
 
+		if (vma->vm_ops && vma->vm_ops->mprotect) {
+			error = vma->vm_ops->mprotect(vma, newflags);
+			if (error < 0)
+				goto out;
+		}
 		if (vma->vm_end > end) {
 			error = mprotect_fixup(vma, &prev, nstart, end, newflags);
 			goto out;