struct vm_area_struct *prev, struct rb_node *rb_parent);
#ifdef CONFIG_MMU
-extern long mlock_vma_pages_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end);
+extern long __mlock_vma_pages_range(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end, int *nonblocking);
extern void munlock_vma_pages_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end);
static inline void munlock_vma_pages_all(struct vm_area_struct *vma)