ocfs2: Add ecc and checksums to ocfs2 xattr buckets.

The xattr bucket can span multiple blocks on disk.  We have wrappers
for this structure in the code.  We use the new multi-block ecc calls to
calculate and validate the bucket.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index bc822d6ba5420def312f496c04ed10fccf6c19b7..7c2f4c9d1bd92b741622715f6f5a66c7f12ab9bb 100644 (file)
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -273,6 +273,15 @@ static int ocfs2_read_xattr_bucket(struct ocfs2_xattr_bucket *bucket,
        rc = ocfs2_read_blocks(bucket->bu_inode, xb_blkno,
                               bucket->bu_blocks, bucket->bu_bhs, 0,
                               NULL);
+       if (!rc) {
+               rc = ocfs2_validate_meta_ecc_bhs(bucket->bu_inode->i_sb,
+                                                bucket->bu_bhs,
+                                                bucket->bu_blocks,
+                                                &bucket_xh(bucket)->xh_check);
+               if (rc)
+                       mlog_errno(rc);
+       }
+
        if (rc)
                ocfs2_xattr_bucket_relse(bucket);
        return rc;
@@ -301,6 +310,10 @@ static void ocfs2_xattr_bucket_journal_dirty(handle_t *handle,
 {
        int i;
 
+       ocfs2_compute_meta_ecc_bhs(bucket->bu_inode->i_sb,
+                                  bucket->bu_bhs, bucket->bu_blocks,
+                                  &bucket_xh(bucket)->xh_check);
+
        for (i = 0; i < bucket->bu_blocks; i++)
                ocfs2_journal_dirty(handle, bucket->bu_bhs[i]);
 }