bch2_mark_dev_superblock(c, ca, 0);
        mutex_unlock(&c->sb_lock);
 
+       mutex_lock(&c->sb_lock);
+       c->disk_sb.sb->version = c->disk_sb.sb->version_min =
+               le16_to_cpu(bcachefs_metadata_version_current);
+       c->disk_sb.sb->features[0] |= 1ULL << BCH_FEATURE_atomic_nlink;
+       c->disk_sb.sb->features[0] |= BCH_SB_FEATURES_ALL;
+
+       bch2_write_super(c);
+       mutex_unlock(&c->sb_lock);
+
        set_bit(BCH_FS_ALLOC_READ_DONE, &c->flags);
        set_bit(BCH_FS_INITIAL_GC_DONE, &c->flags);
 
                goto err;
 
        mutex_lock(&c->sb_lock);
-       c->disk_sb.sb->version = c->disk_sb.sb->version_min =
-               le16_to_cpu(bcachefs_metadata_version_current);
-       c->disk_sb.sb->features[0] |= 1ULL << BCH_FEATURE_atomic_nlink;
-       c->disk_sb.sb->features[0] |= BCH_SB_FEATURES_ALL;
-
        SET_BCH_SB_INITIALIZED(c->disk_sb.sb, true);
        SET_BCH_SB_CLEAN(c->disk_sb.sb, false);