expand_stack     1687 mm/mmap.c      int expand_stack(struct vm_area_struct *vma, unsigned long address)
expand_stack     1708 mm/mmap.c      int expand_stack(struct vm_area_struct *vma, unsigned long address)
expand_stack      449 mm/nommu.c     int expand_stack(struct vm_area_struct *vma, unsigned long address)