From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751094AbWGGPaO (ORCPT ); Fri, 7 Jul 2006 11:30:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751215AbWGGPaO (ORCPT ); Fri, 7 Jul 2006 11:30:14 -0400 Received: from smtp110.mail.mud.yahoo.com ([209.191.85.220]:36709 "HELO smtp110.mail.mud.yahoo.com") by vger.kernel.org with SMTP id S1751094AbWGGPaM (ORCPT ); Fri, 7 Jul 2006 11:30:12 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=Received:Message-ID:Date:From:User-Agent:X-Accept-Language:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=FI4ILsabaTPlJSq0QHfvJyjMgDQCn4yY64yvyV6vAVO83t/jJvr2E6w0qsfxqZ0pvshcuYVanxtSvcydFvBqScxkUjNjyqVqb5IPhViKFqbVUflRWoDkJLyAs6H51F6wYq1qbE9nutnlZY7KAHTlJN8FuWuW3/h1/oc5HuGxHYw= ; Message-ID: <44AE18C0.6030603@yahoo.com.au> Date: Fri, 07 Jul 2006 18:18:08 +1000 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20051007 Debian/1.7.12-1 X-Accept-Language: en MIME-Version: 1.0 To: Linus Torvalds CC: Haavard Skinnemoen , linux-kernel@vger.kernel.org, Andrew Morton Subject: Re: AVR32 architecture patch against Linux 2.6.18-rc1 available References: <20060706105227.220565f8@cad-250-152.norway.atmel.com> <44AE1690.5070509@yahoo.com.au> In-Reply-To: <44AE1690.5070509@yahoo.com.au> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Nick Piggin wrote: > I don't see why test_bit() should be any more "special" than the & operator. OTOH, I guess test_bit isn't a double underscore variant, and so perhaps it is. What are the semantics of these things supposed to be? It gets a bit complex if you're just trying to decide whether need_resched() needs a barrier() or not :( -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com