From 0875a2b448fcaba67010850cf9649293a5ef653d Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Tue, 25 Dec 2012 13:56:01 -0500 Subject: [PATCH] ext4: include journal blocks in df overhead calcs To more accurately calculate overhead for "bsd" style df reporting, we should count the journal blocks as overhead as well. Signed-off-by: Eric Sandeen Signed-off-by: "Theodore Ts'o" Tested-by: Eric Whitney --- fs/ext4/super.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index e09f7d1..4969167 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3231,6 +3231,10 @@ 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) + overhead += EXT4_B2C(sbi, sbi->s_journal->j_maxlen); + sbi->s_overhead = overhead; smp_wmb(); free_page((unsigned long) buf); -- 2.7.4