EXPORT_SYMBOL(memdup_user_nul);
void __vma_link_list(struct mm_struct *mm, struct vm_area_struct *vma,
- struct vm_area_struct *prev, struct rb_node *rb_parent)
+ struct vm_area_struct *prev)
{
struct vm_area_struct *next;
next = prev->vm_next;
prev->vm_next = vma;
} else {
+ next = mm->mmap;
mm->mmap = vma;
- if (rb_parent)
- next = rb_entry(rb_parent,
- struct vm_area_struct, vm_rb);
- else
- next = NULL;
}
vma->vm_next = next;
if (next)
next->vm_prev = vma;
}
+void __vma_unlink_list(struct mm_struct *mm, struct vm_area_struct *vma)
+{
+ struct vm_area_struct *prev, *next;
+
+ next = vma->vm_next;
+ prev = vma->vm_prev;
+ if (prev)
+ prev->vm_next = next;
+ else
+ mm->mmap = next;
+ if (next)
+ next->vm_prev = prev;
+}
+
/* Check if the vma is being used as a stack by this task */
int vma_is_stack_for_current(struct vm_area_struct *vma)
{