From patchwork Wed Nov 19 01:45:36 2008 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Fasheh X-Patchwork-Id: 9517 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by ozlabs.org (Postfix) with ESMTP id 1E93CDDDED for ; Wed, 19 Nov 2008 12:45:47 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751092AbYKSBpi (ORCPT ); Tue, 18 Nov 2008 20:45:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751538AbYKSBpi (ORCPT ); Tue, 18 Nov 2008 20:45:38 -0500 Received: from ns1.suse.de ([195.135.220.2]:55736 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751035AbYKSBph (ORCPT ); Tue, 18 Nov 2008 20:45:37 -0500 Received: from Relay1.suse.de (relay-ext.suse.de [195.135.221.8]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.suse.de (Postfix) with ESMTP id 7477C428C9; Wed, 19 Nov 2008 02:45:36 +0100 (CET) Date: Tue, 18 Nov 2008 17:45:36 -0800 From: Mark Fasheh To: linux-ext4@vger.kernel.org Cc: tytso@mit.edu, Joel Becker Subject: [PATCH] jbd2: Add BH_JBDPrivateStart Message-ID: <20081119014536.GI8378@wotan.suse.de> Reply-To: Mark Fasheh Mime-Version: 1.0 Content-Disposition: inline Organization: SUSE Labs, Novell, Inc User-Agent: Mutt/1.5.9i Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org Add this so that file systems using JBD2 can safely allocate unused b_state bits. In this case, we add it so that Ocfs2 can define a single bit for tracking the validation state of a buffer. Signed-off-by: Mark Fasheh --- include/linux/jbd2.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index c7d106e..f366457 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -329,6 +329,7 @@ enum jbd_state_bits { BH_State, /* Pins most journal_head state */ BH_JournalHead, /* Pins bh->b_private and jh->b_bh */ BH_Unshadow, /* Dummy bit, for BJ_Shadow wakeup filtering */ + BH_JBDPrivateStart, /* First bit available for private use by FS */ }; BUFFER_FNS(JBD, jbd)