On Wed, Apr 03, 2013 at 02:58:31PM +0400, Dmitry Monakhov wrote:
> diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
> index 3a120b2..34da740 100644
> --- a/fs/ext4/xattr.c
> +++ b/fs/ext4/xattr.c
> @@ -123,16 +123,15 @@ static __le32 ext4_xattr_block_csum(struct inode *inode,
> {
> struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
> __u32 csum, old;
> -
> - old = hdr->h_checksum;
> + __le64 dsk_block_nr = cpu_to_le64(block_nr);
> + old = le32_to_cpu(hdr->h_checksum);
We're just saving and restoring hdr->h_checksum. So instead of
byte-swapping the checksum in old, and then swapping it back, why not
just do this instead:
__le32 old;
old = hdr->h_checksum;
...
hdr->h_checksum = old;
- Ted
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