xfs: kill XFS_DIR2...FIRSTDB macros

They are just simple wrappers around xfs_dir2_byte_to_db(), and
we've already removed one usage earlier in the patch set. Kill
the rest before we start removing the xfs_mount from conversion
functions.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>

fs/xfs/xfs_da_format.c

@@ -611,7 +611,8 @@ xfs_dir2_free_bests_p(struct xfs_dir2_free *free)
 static xfs_dir2_db_t
 xfs_dir2_db_to_fdb(struct xfs_mount *mp, xfs_dir2_db_t db)
 {
-	return XFS_DIR2_FREE_FIRSTDB(mp) + db / xfs_dir2_free_max_bests(mp);
+	return xfs_dir2_byte_to_db(mp, XFS_DIR2_FREE_OFFSET) +
+			(db / xfs_dir2_free_max_bests(mp));
 }
 
 /*
@@ -642,7 +643,8 @@ xfs_dir3_free_bests_p(struct xfs_dir2_free *free)
 static xfs_dir2_db_t
 xfs_dir3_db_to_fdb(struct xfs_mount *mp, xfs_dir2_db_t db)
 {
-	return XFS_DIR2_FREE_FIRSTDB(mp) + db / xfs_dir3_free_max_bests(mp);
+	return xfs_dir2_byte_to_db(mp, XFS_DIR2_FREE_OFFSET) +
+			(db / xfs_dir3_free_max_bests(mp));
 }
 
 /*

fs/xfs/xfs_da_format.h

@@ -330,8 +330,6 @@ xfs_dir2_sf_firstentry(struct xfs_dir2_sf_hdr *hdr)
 #define	XFS_DIR2_SPACE_SIZE	(1ULL << (32 + XFS_DIR2_DATA_ALIGN_LOG))
 #define	XFS_DIR2_DATA_SPACE	0
 #define	XFS_DIR2_DATA_OFFSET	(XFS_DIR2_DATA_SPACE * XFS_DIR2_SPACE_SIZE)
-#define	XFS_DIR2_DATA_FIRSTDB(mp)	\
-	xfs_dir2_byte_to_db(mp, XFS_DIR2_DATA_OFFSET)
 
 /*
  * Describe a free area in the data block.
@@ -456,8 +454,6 @@ xfs_dir2_data_unused_tag_p(struct xfs_dir2_data_unused *dup)
  */
 #define	XFS_DIR2_LEAF_SPACE	1
 #define	XFS_DIR2_LEAF_OFFSET	(XFS_DIR2_LEAF_SPACE * XFS_DIR2_SPACE_SIZE)
-#define	XFS_DIR2_LEAF_FIRSTDB(mp)	\
-	xfs_dir2_byte_to_db(mp, XFS_DIR2_LEAF_OFFSET)
 
 /*
  * Leaf block header.
@@ -531,8 +527,6 @@ xfs_dir2_leaf_bests_p(struct xfs_dir2_leaf_tail *ltp)
  */
 #define	XFS_DIR2_FREE_SPACE	2
 #define	XFS_DIR2_FREE_OFFSET	(XFS_DIR2_FREE_SPACE * XFS_DIR2_SPACE_SIZE)
-#define	XFS_DIR2_FREE_FIRSTDB(mp)	\
-	xfs_dir2_byte_to_db(mp, XFS_DIR2_FREE_OFFSET)
 
 typedef	struct xfs_dir2_free_hdr {
 	__be32			magic;		/* XFS_DIR2_FREE_MAGIC */

fs/xfs/xfs_dir2.c

@@ -744,7 +744,7 @@ xfs_dir2_shrink_inode(
 	/*
 	 * If it's not a data block, we're done.
 	 */
-	if (db >= XFS_DIR2_LEAF_FIRSTDB(mp))
+	if (db >= xfs_dir2_byte_to_db(mp, XFS_DIR2_LEAF_OFFSET))
 		return 0;
 	/*
 	 * If the block isn't the last one in the directory, we're done.

fs/xfs/xfs_dir2_leaf.c

@@ -347,8 +347,8 @@ xfs_dir3_leaf_get_buf(
 	int			error;
 
 	ASSERT(magic == XFS_DIR2_LEAF1_MAGIC || magic == XFS_DIR2_LEAFN_MAGIC);
-	ASSERT(bno >= XFS_DIR2_LEAF_FIRSTDB(mp) &&
-	       bno < XFS_DIR2_FREE_FIRSTDB(mp));
+	ASSERT(bno >= xfs_dir2_byte_to_db(mp, XFS_DIR2_LEAF_OFFSET) &&
+	       bno < xfs_dir2_byte_to_db(mp, XFS_DIR2_FREE_OFFSET));
 
 	error = xfs_da_get_buf(tp, dp, xfs_dir2_db_to_da(mp, bno), -1, &bp,
 			       XFS_DATA_FORK);
@@ -404,7 +404,7 @@ xfs_dir2_block_to_leaf(
 		return error;
 	}
 	ldb = xfs_dir2_da_to_db(mp, blkno);
-	ASSERT(ldb == XFS_DIR2_LEAF_FIRSTDB(mp));
+	ASSERT(ldb == xfs_dir2_byte_to_db(mp, XFS_DIR2_LEAF_OFFSET));
 	/*
 	 * Initialize the leaf block, get a buffer for it.
 	 */
@@ -1798,7 +1798,8 @@ xfs_dir2_node_to_leaf(
 	/*
 	 * Get rid of the freespace block.
 	 */
-	error = xfs_dir2_shrink_inode(args, XFS_DIR2_FREE_FIRSTDB(mp), fbp);
+	error = xfs_dir2_shrink_inode(args,
+			xfs_dir2_byte_to_db(mp, XFS_DIR2_FREE_OFFSET), fbp);
 	if (error) {
 		/*
 		 * This can't fail here because it can only happen when

fs/xfs/xfs_dir2_node.c

@@ -315,7 +315,7 @@ xfs_dir2_leaf_to_node(
 	if ((error = xfs_dir2_grow_inode(args, XFS_DIR2_FREE_SPACE, &fdb))) {
 		return error;
 	}
-	ASSERT(fdb == XFS_DIR2_FREE_FIRSTDB(mp));
+	ASSERT(fdb == xfs_dir2_byte_to_db(mp, XFS_DIR2_FREE_OFFSET));
 	/*
 	 * Get the buffer for the new freespace block.
 	 */
@@ -1256,7 +1256,7 @@ xfs_dir2_leafn_remove(
 		struct xfs_dir3_icfree_hdr freehdr;
 		dp->d_ops->free_hdr_from_disk(&freehdr, free);
 		ASSERT(freehdr.firstdb == dp->d_ops->free_max_bests(mp) *
-					  (fdb - XFS_DIR2_FREE_FIRSTDB(mp)));
+			  (fdb - xfs_dir2_byte_to_db(mp, XFS_DIR2_FREE_OFFSET)));
 	}
 #endif
 		/*
@@ -1747,7 +1747,8 @@ xfs_dir2_node_addname_int(
 			 * us a freespace block to start with.
 			 */
 			if (++fbno == 0)
-				fbno = XFS_DIR2_FREE_FIRSTDB(mp);
+				fbno = xfs_dir2_byte_to_db(mp,
+							XFS_DIR2_FREE_OFFSET);
 			/*
 			 * If it's ifbno we already looked at it.
 			 */
@@ -1887,7 +1888,9 @@ xfs_dir2_node_addname_int(
 			/*
 			 * Remember the first slot as our empty slot.
 			 */
-			freehdr.firstdb = (fbno - XFS_DIR2_FREE_FIRSTDB(mp)) *
+			freehdr.firstdb =
+				(fbno - xfs_dir2_byte_to_db(mp,
+							XFS_DIR2_FREE_OFFSET)) *
 					dp->d_ops->free_max_bests(mp);
 		} else {
 			free = fbp->b_addr;