From: Chin-Tsung Cheng Subject: [PATCH v2] ext4: include journal blocks of internal journal in df overhead calcs Date: Fri, 15 Aug 2014 14:42:51 +0800 Message-ID: <1408084971-1456-1-git-send-email-chintzung@gmail.com> Cc: adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, Chin-Tsung Cheng To: tytso@mit.edu Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org The journal blocks of external journal device should not be counted as overhead. Signed-off-by: Chin-Tsung Cheng --- fs/ext4/super.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 32b43ad..a80b122 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3316,8 +3316,8 @@ int ext4_calculate_overhead(struct super_block *sb) memset(buf, 0, PAGE_SIZE); cond_resched(); } - /* Add the journal blocks as well */ - if (sbi->s_journal) + /* Add the internal journal blocks as well */ + if (sbi->s_journal && !sbi->journal_bdev) overhead += EXT4_NUM_B2C(sbi, sbi->s_journal->j_maxlen); sbi->s_overhead = overhead; -- 1.9.3