uuid = &((struct xfs_dir3_blk_hdr *)blk)->uuid;
break;
case XFS_ATTR3_RMT_MAGIC:
- lsn = be64_to_cpu(((struct xfs_attr3_rmt_hdr *)blk)->rm_lsn);
- uuid = &((struct xfs_attr3_rmt_hdr *)blk)->rm_uuid;
- break;
+ /*
+ * Remote attr blocks are written synchronously, rather than
+ * being logged. That means they do not contain a valid LSN
+ * (i.e. transactionally ordered) in them, and hence any time we
+ * see a buffer to replay over the top of a remote attribute
+ * block we should simply do so.
+ */
+ goto recover_immediately;
case XFS_SB_MAGIC:
+ /*
+ * superblock uuids are magic. We may or may not have a
+ * sb_meta_uuid on disk, but it will be set in the in-core
+ * superblock. We set the uuid pointer for verification
+ * according to the superblock feature mask to ensure we check
+ * the relevant UUID in the superblock.
+ */
lsn = be64_to_cpu(((struct xfs_dsb *)blk)->sb_lsn);
- uuid = &((struct xfs_dsb *)blk)->sb_uuid;
+ if (xfs_sb_version_hasmetauuid(&mp->m_sb))
+ uuid = &((struct xfs_dsb *)blk)->sb_meta_uuid;
+ else
+ uuid = &((struct xfs_dsb *)blk)->sb_uuid;
break;
default:
break;