taglinefilesource code
grow246include/linux/mm.hunsigned long grow;
grow251include/linux/mm.hgrow = vma->vm_start - address;
grow253include/linux/mm.hvma->vm_offset -= grow;
grow254include/linux/mm.hvma->vm_mm->total_vm += grow >> PAGE_SHIFT;
grow256include/linux/mm.hvma->vm_mm->locked_vm += grow >> PAGE_SHIFT;