From: Azat Khuzhin Subject: [PATCH 2/4 v3] tune2fs: remove_journal_device(): use the correct block to find jsb Date: Mon, 28 Jul 2014 11:43:23 +0400 Message-ID: <1406533405-6899-3-git-send-email-a3at.mail@gmail.com> References: <1406533405-6899-1-git-send-email-a3at.mail@gmail.com> Cc: tytso@mit.edu, darrick.wong@oracle.com, adilger@dilger.ca, Azat Khuzhin To: linux-ext4@vger.kernel.org Return-path: Received: from mail-la0-f50.google.com ([209.85.215.50]:33377 "EHLO mail-la0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751620AbaG1Hn7 (ORCPT ); Mon, 28 Jul 2014 03:43:59 -0400 Received: by mail-la0-f50.google.com with SMTP id gf5so5225503lab.9 for ; Mon, 28 Jul 2014 00:43:57 -0700 (PDT) In-Reply-To: <1406533405-6899-1-git-send-email-a3at.mail@gmail.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: Signed-off-by: Azat Khuzhin Reviewed-by: Andreas Dilger --- misc/tune2fs.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/misc/tune2fs.c b/misc/tune2fs.c index ff50f37..1df655a 100644 --- a/misc/tune2fs.c +++ b/misc/tune2fs.c @@ -188,6 +188,7 @@ static int remove_journal_device(ext2_filsys fs) errcode_t retval; int commit_remove_journal = 0; io_manager io_ptr; + int start; if (f_flag) commit_remove_journal = 1; /* force removal even if error */ @@ -224,8 +225,10 @@ static int remove_journal_device(ext2_filsys fs) goto no_valid_journal; } + start = ext2fs_journal_sb_start(fs->blocksize); /* Get the journal superblock */ - if ((retval = io_channel_read_blk64(jfs->io, 1, -SUPERBLOCK_SIZE, buf))) { + if ((retval = io_channel_read_blk64(jfs->io, start, + -SUPERBLOCK_SIZE, buf))) { com_err(program_name, retval, "%s", _("while reading journal superblock")); goto no_valid_journal; @@ -256,7 +259,8 @@ static int remove_journal_device(ext2_filsys fs) jsb->s_nr_users = htonl(nr_users); /* Write back the journal superblock */ - if ((retval = io_channel_write_blk64(jfs->io, 1, -SUPERBLOCK_SIZE, buf))) { + if ((retval = io_channel_write_blk64(jfs->io, start, + -SUPERBLOCK_SIZE, buf))) { com_err(program_name, retval, "while writing journal superblock."); goto no_valid_journal; -- 2.0.1