Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761648AbYBUPZb (ORCPT ); Thu, 21 Feb 2008 10:25:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752674AbYBUPZV (ORCPT ); Thu, 21 Feb 2008 10:25:21 -0500 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:47668 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752309AbYBUPZT (ORCPT ); Thu, 21 Feb 2008 10:25:19 -0500 Date: Thu, 21 Feb 2008 15:15:49 +0000 From: Alan Cox To: David Newall Cc: Greg KH , linux-usb@vger.kernel.org, Linux Kernel Mailing List Subject: Re: Handshaking on USB serial devices Message-ID: <20080221151549.0fa72422@core> In-Reply-To: <47BD9721.70907@davidnewall.com> References: <47B30291.2040905@davidnewall.com> <20080214050211.GB1432@kroah.com> <47B40918.20206@davidnewall.com> <20080214121026.16a9c510@core> <47B482B4.9010208@davidnewall.com> <20080214193637.5df1c205@core> <47BD9721.70907@davidnewall.com> X-Mailer: Claws Mail 3.2.0 (GTK+ 2.12.5; x86_64-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 550 Lines: 12 > developing is entirely wrong. Oh well. Mind you, providing a > write_room function is NOT a real solution; it merely reduces the > condition to a usually-winnable race. (Ironically, when I back-ported > the 2.6 driver, I excluded its new write_room function. Mistake.) What race do you see left ? -- 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/