ext4: fix overhead calculation used by ext4_statfs()
authorTheodore Ts'o <tytso@mit.edu>
Mon, 9 Jul 2012 20:27:05 +0000 (16:27 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 9 Aug 2012 15:31:41 +0000 (08:31 -0700)
commit25471391e7a0acace5821318fc0123a0a5cfdbbe
tree9baba899124c6d1e893bd8595383dc0b391e3e23
parent2a271d6a66d1d10f001c5653da68c1f72d0ded59
ext4: fix overhead calculation used by ext4_statfs()

commit 952fc18ef9ec707ebdc16c0786ec360295e5ff15 upstream.

Commit f975d6bcc7a introduced bug which caused ext4_statfs() to
miscalculate the number of file system overhead blocks.  This causes
the f_blocks field in the statfs structure to be larger than it should
be.  This would in turn cause the "df" output to show the number of
data blocks in the file system and the number of data blocks used to
be larger than they should be.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/ext4/bitmap.c
fs/ext4/ext4.h
fs/ext4/resize.c
fs/ext4/super.c