taglinefilesource code
grow234include/linux/mm.hunsigned long grow;
grow239include/linux/mm.hgrow = vma->vm_start - address;
grow241include/linux/mm.hvma->vm_offset -= grow;
grow242include/linux/mm.hvma->vm_mm->total_vm += grow >> PAGE_SHIFT;
grow244include/linux/mm.hvma->vm_mm->locked_vm += grow >> PAGE_SHIFT;