Signed-off-by: Chandan Babu R <chandan.babu@xxxxxxxxxx>
---
include/xfs_metadump.h | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/include/xfs_metadump.h b/include/xfs_metadump.h
index a4dca25cb..1d8d7008c 100644
--- a/include/xfs_metadump.h
+++ b/include/xfs_metadump.h
@@ -8,7 +8,9 @@
#define _XFS_METADUMP_H_
#define XFS_MD_MAGIC_V1 0x5846534d /* 'XFSM' */
+#define XFS_MD_MAGIC_V2 0x584D4432 /* 'XMD2' */
+/* Metadump v1 */
typedef struct xfs_metablock {
__be32 mb_magic;
__be16 mb_count;
@@ -23,4 +25,34 @@ typedef struct xfs_metablock {
#define XFS_METADUMP_FULLBLOCKS (1 << 2)
#define XFS_METADUMP_DIRTYLOG (1 << 3)
+/* Metadump v2 */
+struct xfs_metadump_header {
+ __be32 xmh_magic;
+ __be32 xmh_version;
+ __be32 xmh_compat_flags;
+ __be32 xmh_incompat_flags;
+ __be64 xmh_reserved;
+} __packed;
+
+#define XFS_MD2_INCOMPAT_OBFUSCATED (1 << 0)
+#define XFS_MD2_INCOMPAT_FULLBLOCKS (1 << 1)
+#define XFS_MD2_INCOMPAT_DIRTYLOG (1 << 2)
+
+struct xfs_meta_extent {
+ /*
+ * Lowest 54 bits are used to store 512 byte addresses.
+ * Next 2 bits is used for indicating the device.
+ * 00 - Data device
+ * 01 - External log
+ */
+ __be64 xme_addr;
+ /* In units of 512 byte blocks */
+ __be32 xme_len;
+} __packed;
+
+#define XME_ADDR_DATA_DEVICE (1UL << 54)
+#define XME_ADDR_LOG_DEVICE (1UL << 55)
+
+#define XME_ADDR_DEVICE_MASK (~(XME_ADDR_DATA_DEVICE | XME_ADDR_LOG_DEVICE))
+
#endif /* _XFS_METADUMP_H_ */
--
2.39.1
