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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 <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Tested-by: Eric Whitney <enwlinux@gmail.com>
master
Eric Sandeen 9 years ago
committed by Theodore Ts'o
parent
commit
0875a2b448
  1. 4
      fs/ext4/super.c

4
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);

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