find_extend_vma  2527 mm/mmap.c      find_extend_vma(struct mm_struct *mm, unsigned long addr)
find_extend_vma  2549 mm/mmap.c      find_extend_vma(struct mm_struct *mm, unsigned long addr)
find_extend_vma   734 mm/nommu.c     struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr)