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authorDmitry Monakhov <dmonakhov@openvz.org>2013-04-09 23:56:48 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-05-07 20:33:14 -0700
commit015816a1099be02403b67ee4130f4fcef1f75934 (patch)
tree799b37a9bfd3c51aab68f5aaffcf2ece7831dcf0
parent80fcee2b189d7ad526377f208d1de741519268b9 (diff)
ext4: fix big-endian bug in metadata checksum calculations
commit 171a7f21a76a0958c225b97c00a97a10390d40ee upstream. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--fs/ext4/inode.c8
-rw-r--r--fs/ext4/mmp.c2
2 files changed, 5 insertions, 5 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 4ff52738e4f..d69e9540cd2 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -55,21 +55,21 @@ static __u32 ext4_inode_csum(struct inode *inode, struct ext4_inode *raw,
__u16 csum_hi = 0;
__u32 csum;
- csum_lo = raw->i_checksum_lo;
+ csum_lo = le16_to_cpu(raw->i_checksum_lo);
raw->i_checksum_lo = 0;
if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE &&
EXT4_FITS_IN_INODE(raw, ei, i_checksum_hi)) {
- csum_hi = raw->i_checksum_hi;
+ csum_hi = le16_to_cpu(raw->i_checksum_hi);
raw->i_checksum_hi = 0;
}
csum = ext4_chksum(sbi, ei->i_csum_seed, (__u8 *)raw,
EXT4_INODE_SIZE(inode->i_sb));
- raw->i_checksum_lo = csum_lo;
+ raw->i_checksum_lo = cpu_to_le16(csum_lo);
if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE &&
EXT4_FITS_IN_INODE(raw, ei, i_checksum_hi))
- raw->i_checksum_hi = csum_hi;
+ raw->i_checksum_hi = cpu_to_le16(csum_hi);
return csum;
}
diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
index f9b551561d2..b3b1f7d9944 100644
--- a/fs/ext4/mmp.c
+++ b/fs/ext4/mmp.c
@@ -7,7 +7,7 @@
#include "ext4.h"
/* Checksumming functions */
-static __u32 ext4_mmp_csum(struct super_block *sb, struct mmp_struct *mmp)
+static __le32 ext4_mmp_csum(struct super_block *sb, struct mmp_struct *mmp)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
int offset = offsetof(struct mmp_struct, mmp_checksum);