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| author | Dmitry Monakhov <dmonakhov@openvz.org> | 2013-04-09 23:56:48 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-05-07 20:33:14 -0700 |
| commit | 015816a1099be02403b67ee4130f4fcef1f75934 (patch) | |
| tree | 799b37a9bfd3c51aab68f5aaffcf2ece7831dcf0 | |
| parent | 80fcee2b189d7ad526377f208d1de741519268b9 (diff) | |
| download | lwn-015816a1099be02403b67ee4130f4fcef1f75934.tar.gz lwn-015816a1099be02403b67ee4130f4fcef1f75934.zip | |
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.c | 8 | ||||
| -rw-r--r-- | fs/ext4/mmp.c | 2 |
2 files changed, 5 insertions, 5 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 4ff52738e4fb..d69e9540cd21 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 f9b551561d2c..b3b1f7d99448 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); |