From: Darrick J. Wong <djwong@xxxxxxxxxx>
Add new realtime rmap btree definitions. The realtime rmap btree will
be rooted from a hidden inode, but has its own shape and therefore
needs to have most of its own separate types.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
libxfs/xfs_btree.h | 1 +
libxfs/xfs_format.h | 7 +++++++
libxfs/xfs_types.h | 5 +++--
3 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/libxfs/xfs_btree.h b/libxfs/xfs_btree.h
index 6ded5af94b3..72fd341eccd 100644
--- a/libxfs/xfs_btree.h
+++ b/libxfs/xfs_btree.h
@@ -64,6 +64,7 @@ union xfs_btree_rec {
#define XFS_BTNUM_RMAP ((xfs_btnum_t)XFS_BTNUM_RMAPi)
#define XFS_BTNUM_REFC ((xfs_btnum_t)XFS_BTNUM_REFCi)
#define XFS_BTNUM_RCBAG ((xfs_btnum_t)XFS_BTNUM_RCBAGi)
+#define XFS_BTNUM_RTRMAP ((xfs_btnum_t)XFS_BTNUM_RTRMAPi)
struct xfs_btree_ops;
uint32_t xfs_btree_magic(struct xfs_mount *mp, const struct xfs_btree_ops *ops);
diff --git a/libxfs/xfs_format.h b/libxfs/xfs_format.h
index e4f3b2c5c05..b2d4ef28a48 100644
--- a/libxfs/xfs_format.h
+++ b/libxfs/xfs_format.h
@@ -1727,6 +1727,13 @@ typedef __be32 xfs_rmap_ptr_t;
XFS_FIBT_BLOCK(mp) + 1 : \
XFS_IBT_BLOCK(mp) + 1)
+/*
+ * Realtime Reverse mapping btree format definitions
+ *
+ * This is a btree for reverse mapping records for realtime volumes
+ */
+#define XFS_RTRMAP_CRC_MAGIC 0x4d415052 /* 'MAPR' */
+
/*
* Reference Count Btree format definitions
*
diff --git a/libxfs/xfs_types.h b/libxfs/xfs_types.h
index d37f8a7ce5f..e6a4f4a7d00 100644
--- a/libxfs/xfs_types.h
+++ b/libxfs/xfs_types.h
@@ -126,7 +126,7 @@ typedef enum {
typedef enum {
XFS_BTNUM_BNOi, XFS_BTNUM_CNTi, XFS_BTNUM_RMAPi, XFS_BTNUM_BMAPi,
XFS_BTNUM_INOi, XFS_BTNUM_FINOi, XFS_BTNUM_REFCi, XFS_BTNUM_RCBAGi,
- XFS_BTNUM_MAX
+ XFS_BTNUM_RTRMAPi, XFS_BTNUM_MAX
} xfs_btnum_t;
#define XFS_BTNUM_STRINGS \
@@ -137,7 +137,8 @@ typedef enum {
{ XFS_BTNUM_INOi, "inobt" }, \
{ XFS_BTNUM_FINOi, "finobt" }, \
{ XFS_BTNUM_REFCi, "refcbt" }, \
- { XFS_BTNUM_RCBAGi, "rcbagbt" }
+ { XFS_BTNUM_RCBAGi, "rcbagbt" }, \
+ { XFS_BTNUM_RTRMAPi, "rtrmapbt" }
struct xfs_name {
const unsigned char *name;
