[XFS] kill struct xfs_btree_hdr

This type is only embedded in struct xfs_btree_block and never used
directly. By moving the fields directly into struct xfs_btree_block a lot
of the macros for struct xfs_btree_sblock and struct xfs_btree_lblock can
be used for struct xfs_btree_block too now which helps greatly with some
of the migrations during implementing the generic btree code.

SGI-PV: 985583

SGI-Modid: xfs-linux-melb:xfs-kern:32174a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Bill O'Donnell <billodo@sgi.com>
Signed-off-by: David Chinner <david@fromorbit.com>

2 files changed, 7 insertions, 12 deletions

diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c
index cc593a84c34..31002093bfb 100644
--- a/fs/xfs/xfs_btree.c
+++ b/fs/xfs/xfs_btree.c
@@ -62,13 +62,13 @@ xfs_btree_maxrecs(
         case XFS_BTNUM_BNO:
         case XFS_BTNUM_CNT:
                 return (int)XFS_ALLOC_BLOCK_MAXRECS(
-                                be16_to_cpu(block->bb_h.bb_level), cur);
+                                be16_to_cpu(block->bb_level), cur);
         case XFS_BTNUM_BMAP:
                 return (int)XFS_BMAP_BLOCK_IMAXRECS(
-                                be16_to_cpu(block->bb_h.bb_level), cur);
+                                be16_to_cpu(block->bb_level), cur);
         case XFS_BTNUM_INO:
                 return (int)XFS_INOBT_BLOCK_MAXRECS(
-                                be16_to_cpu(block->bb_h.bb_level), cur);
+                                be16_to_cpu(block->bb_level), cur);
         default:
                 ASSERT(0);
                 return 0;
@@ -634,7 +634,7 @@ xfs_btree_firstrec(
         /*
          * It's empty, there is no such record.
          */
-        if (!block->bb_h.bb_numrecs)
+        if (!block->bb_numrecs)
                 return 0;
         /*
          * Set the ptr value to 1, that's the first record/key.
@@ -663,12 +663,12 @@ xfs_btree_lastrec(
         /*
          * It's empty, there is no such record.
          */
-        if (!block->bb_h.bb_numrecs)
+        if (!block->bb_numrecs)
                 return 0;
         /*
          * Set the ptr value to numrecs, that's the last record/key.
          */
-        cur->bc_ptrs[level] = be16_to_cpu(block->bb_h.bb_numrecs);
+        cur->bc_ptrs[level] = be16_to_cpu(block->bb_numrecs);
         return 1;
 }
 
diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h
index 1f528a2a375..332b9f1da20 100644
--- a/fs/xfs/xfs_btree.h
+++ b/fs/xfs/xfs_btree.h
@@ -63,15 +63,10 @@ typedef struct xfs_btree_lblock {
 /*
  * Combined header and structure, used by common code.
  */
-typedef struct xfs_btree_hdr
-{
+typedef struct xfs_btree_block {
         __be32          bb_magic;       /* magic number for block type */
         __be16          bb_level;       /* 0 is a leaf */
         __be16          bb_numrecs;     /* current # of data records */
-} xfs_btree_hdr_t;
-
-typedef struct xfs_btree_block {
-        xfs_btree_hdr_t bb_h;           /* header */
         union {
                 struct {
                         __be32          bb_leftsib;