From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ravikiran G Thirumalai Subject: [patch 0/4] ide: Break ide_lock to per-hwgroup lock Date: Tue, 6 Sep 2005 16:33:22 -0700 Message-ID: <20050906233322.GA3642@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from serv01.siteground.net ([70.85.91.68]:25066 "EHLO serv01.siteground.net") by vger.kernel.org with ESMTP id S1751033AbVIFXdZ (ORCPT ); Tue, 6 Sep 2005 19:33:25 -0400 Content-Disposition: inline Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Bartlomiej Zolnierkiewicz Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, "Shai Fultheim (Shai@scalex86.org)" , Alok Kataria The following patchset breaks down the global ide_lock to per-hwgroup lock. We have taken the following approach. 1. Move the hwif tuning code from probe_hwif to ideprobe_init, after hwif_init so that hwgroups are present for all the hwifs when the tune routines for the hwifs are invoked (patch 1) 2. Change the core ide code to use hwgroup->lock instead of ide_lock. Deprecate ide_lock (patch 2) 3. Change the host controllers to use hwgroup->lock (patch 3) 4. Change host controller drivers to use per driver lock instead of ide_lock where needed or hwgroup->lock on case by case basis. This can be done incrementally for various controllers and we will have working code between patches -- this is done now for piix controller only. Eventually, we can change all controllers to remove ide_lock Thanks to Bartlomiej for comments and suggestions. Patchset follows. Patchset tested on a smp box with a piix controller. Thanks, Kiran