Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262240AbVBKKQg (ORCPT ); Fri, 11 Feb 2005 05:16:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262239AbVBKKQg (ORCPT ); Fri, 11 Feb 2005 05:16:36 -0500 Received: from postfix4-1.free.fr ([213.228.0.62]:26823 "EHLO postfix4-1.free.fr") by vger.kernel.org with ESMTP id S262236AbVBKKQ2 (ORCPT ); Fri, 11 Feb 2005 05:16:28 -0500 Subject: Re: USB 2.4.30: fix modem_run From: Duncan Sands To: Pete Zaitcev Cc: marcelo.tosatti@cyclades.com, linux-kernel@vger.kernel.org In-Reply-To: <20050210161144.708cb96f@localhost.localdomain> References: <20050210161144.708cb96f@localhost.localdomain> Content-Type: text/plain Date: Fri, 11 Feb 2005 11:16:20 +0100 Message-Id: <1108116980.7400.0.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.0.2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 734 Lines: 18 On Thu, 2005-02-10 at 16:11 -0800, Pete Zaitcev wrote: > I entered a patch which adds "exclusive_access" lock into 2.4.29, to fix > devices which cannot handle simultaneous accesses. This caused a regression > with European ADSL modems. An ioctl USBDEVFS_REAPURB allows a process to enter > the kernel and wait for USB I/O to finish. Naturally, this should not take > exclusive_access, or nothing will ever finish. How does this compare with the locking in 2.6 kernels? Thanks, Duncan. - 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/