From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: [Ksummit-2010-discuss] [v2] Remaining BKL users, what to do Date: Tue, 19 Oct 2010 13:29:12 -0700 Message-ID: <20101019202912.GA30133@kroah.com> References: <201009161632.59210.arnd@arndb.de> <21406.1287512693@localhost> <20101019193735.GA4043@kroah.com> <201010192140.47433.oliver@neukum.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Valdis.Kletnieks@vt.edu, Dave Airlie , Arnd Bergmann , codalist@telemann.coda.cs.cmu.edu, ksummit-2010-discuss@lists.linux-foundation.org, autofs@linux.kernel.org, Jan Harkes , Samuel Ortiz , Jan Kara , Arnaldo Carvalho de Melo , netdev@vger.kernel.org, Anders Larsen , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Bryan Schumaker , Christoph Hellwig , Petr Vandrovec , Mikulas Patocka , linux-fsdevel@vger.kernel.org, Evgeniy Dushistov , Ingo Molnar , Andrew Hendry , linux-media@vger.kernel.org To: Oliver Neukum Return-path: Received: from kroah.org ([198.145.64.141]:49484 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757273Ab0JSUaB (ORCPT ); Tue, 19 Oct 2010 16:30:01 -0400 Content-Disposition: inline In-Reply-To: <201010192140.47433.oliver@neukum.org> Sender: netdev-owner@vger.kernel.org List-ID: On Tue, Oct 19, 2010 at 09:40:47PM +0200, Oliver Neukum wrote: > Am Dienstag, 19. Oktober 2010, 21:37:35 schrieb Greg KH: > > > So no need to clean it up for multiprocessor support. > > > > > > http://download.intel.com/design/chipsets/datashts/29067602.pdf > > > http://www.intel.com/design/chipsets/specupdt/29069403.pdf > > > > Great, we can just drop all calls to lock_kernel() and the like in the > > driver and be done with it, right? > > No, > > you still need to switch off preemption. Hm, how would you do that from within a driver? thanks, greg k-h