Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 29 Apr 2002 12:28:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 29 Apr 2002 12:28:21 -0400 Received: from e31.co.us.ibm.com ([32.97.110.129]:55738 "EHLO e31.co.us.ibm.com") by vger.kernel.org with ESMTP id ; Mon, 29 Apr 2002 12:28:20 -0400 Message-ID: <3CCD672E.5040005@us.ibm.com> Date: Mon, 29 Apr 2002 08:30:54 -0700 From: Dave Hansen User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0rc1) Gecko/20020417 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Russell King CC: linux-kernel@vger.kernel.org Subject: Re: devfs: BKL *not* taken while opening devices In-Reply-To: <20020429141301.B16778@flint.arm.linux.org.uk> 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 Russell King wrote: > Kernel 2.5.8... Devfs devfs_open() bypasses the normal chrdev_open > and blkdev_open functions, and misses out taking the BKL. 2.5.10 is > the same. > > Certainly the tty layer (and probably many of the other devices as > well) require the BKL to be taken before calling the open method. Has the time come to push the BKL down into all of the driver open()s? It's going to be a lot of work, but it has to happen eventually, right? -- Dave Hansen haveblue@us.ibm.com - 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/