From: Theodore Ts'o Subject: [PATCH FOR-STABLE-2.6.27 15/24] jbd2: Add BH_JBDPrivateStart Date: Tue, 17 Feb 2009 10:58:35 -0500 Message-ID: <1234886324-15105-16-git-send-email-tytso@mit.edu> References: <1234886324-15105-1-git-send-email-tytso@mit.edu> <1234886324-15105-2-git-send-email-tytso@mit.edu> <1234886324-15105-3-git-send-email-tytso@mit.edu> <1234886324-15105-4-git-send-email-tytso@mit.edu> <1234886324-15105-5-git-send-email-tytso@mit.edu> <1234886324-15105-6-git-send-email-tytso@mit.edu> <1234886324-15105-7-git-send-email-tytso@mit.edu> <1234886324-15105-8-git-send-email-tytso@mit.edu> <1234886324-15105-9-git-send-email-tytso@mit.edu> <1234886324-15105-10-git-send-email-tytso@mit.edu> <1234886324-15105-11-git-send-email-tytso@mit.edu> <1234886324-15105-12-git-send-email-tytso@mit.edu> <1234886324-15105-13-git-send-email-tytso@mit.edu> <1234886324-15105-14-git-send-email-tytso@mit.edu> <1234886324-15105-15-git-send-email-tytso@mit.edu> Cc: linux-ext4@vger.kernel.org, Mark Fasheh To: stable@kernel.org Return-path: Received: from thunk.org ([69.25.196.29]:35413 "EHLO thunker.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752223AbZBQQDV (ORCPT ); Tue, 17 Feb 2009 11:03:21 -0500 In-Reply-To: <1234886324-15105-15-git-send-email-tytso@mit.edu> Sender: linux-ext4-owner@vger.kernel.org List-ID: From: Mark Fasheh 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. Acked-by: "Theodore Ts'o" Signed-off-by: Mark Fasheh (cherry picked from commit e97fcd95a4778a8caf1980c6c72fdf68185a0838) --- 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 66c3499..e8e9133 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) -- 1.5.6.3