Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 25 Feb 2003 13:58:08 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 25 Feb 2003 13:58:08 -0500 Received: from chaos.analogic.com ([204.178.40.224]:41348 "EHLO chaos.analogic.com") by vger.kernel.org with ESMTP id ; Tue, 25 Feb 2003 13:58:07 -0500 Date: Tue, 25 Feb 2003 14:11:11 -0500 (EST) From: "Richard B. Johnson" Reply-To: root@chaos.analogic.com To: Linux kernel Subject: atomic_t (24 bits???) Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 816 Lines: 24 In ../linux/include/asm/atomic.h, for versions 2.4.18 and above as far as I've checked, there are repeated warnings "Note that the guaranteed useful range of an atomic_t is only 24 bits." I fail to see any reason why as atomic_t is typdefed to a volatile int which, on ix86 seems to be 32 bits. Does anybody know if this is just some old comments from a previous atomic_t type of, perhaps, char[3]? Cheers, Dick Johnson Penguin : Linux version 2.4.18 on an i686 machine (797.90 BogoMips). Why is the government concerned about the lunatic fringe? Think about it. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/