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 <darrick.wong@xxxxxxxxxx>
---
libxfs/xfs_btree.c | 4 ++--
libxfs/xfs_btree.h | 3 +++
libxfs/xfs_format.h | 7 +++++++
libxfs/xfs_types.h | 3 ++-
4 files changed, 14 insertions(+), 3 deletions(-)
diff --git a/libxfs/xfs_btree.c b/libxfs/xfs_btree.c
index 26b8e62..53f6192 100644
--- a/libxfs/xfs_btree.c
+++ b/libxfs/xfs_btree.c
@@ -41,10 +41,10 @@ kmem_zone_t *xfs_btree_cur_zone;
*/
static const __uint32_t xfs_magics[2][XFS_BTNUM_MAX] = {
{ XFS_ABTB_MAGIC, XFS_ABTC_MAGIC, 0, XFS_BMAP_MAGIC, XFS_IBT_MAGIC,
- XFS_FIBT_MAGIC, 0 },
+ XFS_FIBT_MAGIC, 0, 0 },
{ XFS_ABTB_CRC_MAGIC, XFS_ABTC_CRC_MAGIC, XFS_RMAP_CRC_MAGIC,
XFS_BMAP_CRC_MAGIC, XFS_IBT_CRC_MAGIC, XFS_FIBT_CRC_MAGIC,
- XFS_REFC_CRC_MAGIC }
+ XFS_REFC_CRC_MAGIC, XFS_RTRMAP_CRC_MAGIC }
};
#define xfs_btree_magic(cur) \
xfs_magics[!!((cur)->bc_flags & XFS_BTREE_CRC_BLOCKS)][cur->bc_btnum]
diff --git a/libxfs/xfs_btree.h b/libxfs/xfs_btree.h
index 8918b81..8913ffa 100644
--- a/libxfs/xfs_btree.h
+++ b/libxfs/xfs_btree.h
@@ -75,6 +75,7 @@ union xfs_btree_rec {
#define XFS_BTNUM_FINO ((xfs_btnum_t)XFS_BTNUM_FINOi)
#define XFS_BTNUM_RMAP ((xfs_btnum_t)XFS_BTNUM_RMAPi)
#define XFS_BTNUM_REFC ((xfs_btnum_t)XFS_BTNUM_REFCi)
+#define XFS_BTNUM_RTRMAP ((xfs_btnum_t)XFS_BTNUM_RTRMAPi)
/*
* For logging record fields.
@@ -107,6 +108,7 @@ do { \
case XFS_BTNUM_BMAP: __XFS_BTREE_STATS_INC(__mp, bmbt, stat); break; \
case XFS_BTNUM_INO: __XFS_BTREE_STATS_INC(__mp, ibt, stat); break; \
case XFS_BTNUM_FINO: __XFS_BTREE_STATS_INC(__mp, fibt, stat); break; \
+ case XFS_BTNUM_RTRMAP: /* pass-through */ \
case XFS_BTNUM_RMAP: __XFS_BTREE_STATS_INC(__mp, rmap, stat); break; \
case XFS_BTNUM_REFC: __XFS_BTREE_STATS_INC(__mp, refcbt, stat); break; \
case XFS_BTNUM_MAX: ASSERT(0); __mp = __mp /* fucking gcc */ ; break; \
@@ -129,6 +131,7 @@ do { \
__XFS_BTREE_STATS_ADD(__mp, ibt, stat, val); break; \
case XFS_BTNUM_FINO: \
__XFS_BTREE_STATS_ADD(__mp, fibt, stat, val); break; \
+ case XFS_BTNUM_RTRMAP: /* pass-through */ \
case XFS_BTNUM_RMAP: \
__XFS_BTREE_STATS_ADD(__mp, rmap, stat, val); break; \
case XFS_BTNUM_REFC: \
diff --git a/libxfs/xfs_format.h b/libxfs/xfs_format.h
index c336f7a..ae2d958 100644
--- a/libxfs/xfs_format.h
+++ b/libxfs/xfs_format.h
@@ -1463,6 +1463,13 @@ typedef __be32 xfs_rmap_ptr_t;
XFS_IBT_BLOCK(mp) + 1)
/*
+ * Realtime Reverse mapping btree format definitions
+ *
+ * There is a btree for the reverse map per allocation group
+ */
+#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 cf044c0..749aa83 100644
--- a/libxfs/xfs_types.h
+++ b/libxfs/xfs_types.h
@@ -113,7 +113,8 @@ 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_MAX
+ XFS_BTNUM_INOi, XFS_BTNUM_FINOi, XFS_BTNUM_REFCi, XFS_BTNUM_RTRMAPi,
+ XFS_BTNUM_MAX
} xfs_btnum_t;
struct xfs_name {
_______________________________________________
xfs mailing list
xfs@xxxxxxxxxxx
http://oss.sgi.com/mailman/listinfo/xfs
