MS_SYNC            39 mm/msync.c     	if (flags & ~(MS_ASYNC | MS_INVALIDATE | MS_SYNC))
MS_SYNC            43 mm/msync.c     	if ((flags & MS_ASYNC) && (flags & MS_SYNC))
MS_SYNC            81 mm/msync.c     		if ((flags & MS_SYNC) && file &&