xfs: remove the mappedbno argument to xfs_da_get_buf

Use the xfs_da_get_buf_daddr function directly for the two callers
that pass a mapped disk address, and then remove the mappedbno argument.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

fs/xfs/libxfs/xfs_attr_leaf.c

@@ -1162,7 +1162,7 @@ xfs_attr3_leaf_to_node(
 	if (error)
 		goto out;
 
-	error = xfs_da_get_buf(args->trans, dp, blkno, -1, &bp2, XFS_ATTR_FORK);
+	error = xfs_da_get_buf(args->trans, dp, blkno, &bp2, XFS_ATTR_FORK);
 	if (error)
 		goto out;
 
@@ -1223,7 +1223,7 @@ xfs_attr3_leaf_create(
 
 	trace_xfs_attr_leaf_create(args);
 
-	error = xfs_da_get_buf(args->trans, args->dp, blkno, -1, &bp,
+	error = xfs_da_get_buf(args->trans, args->dp, blkno, &bp,
 					    XFS_ATTR_FORK);
 	if (error)
 		return error;

fs/xfs/libxfs/xfs_da_btree.c

@@ -429,7 +429,7 @@ xfs_da3_node_create(
 	trace_xfs_da_node_create(args);
 	ASSERT(level <= XFS_DA_NODE_MAXDEPTH);
 
-	error = xfs_da_get_buf(tp, dp, blkno, -1, &bp, whichfork);
+	error = xfs_da_get_buf(tp, dp, blkno, &bp, whichfork);
 	if (error)
 		return error;
 	bp->b_ops = &xfs_da3_node_buf_ops;
@@ -656,7 +656,7 @@ xfs_da3_root_split(
 
 	dp = args->dp;
 	tp = args->trans;
-	error = xfs_da_get_buf(tp, dp, blkno, -1, &bp, args->whichfork);
+	error = xfs_da_get_buf(tp, dp, blkno, &bp, args->whichfork);
 	if (error)
 		return error;
 	node = bp->b_addr;
@@ -2577,7 +2577,6 @@ xfs_da_get_buf(
 	struct xfs_trans	*tp,
 	struct xfs_inode	*dp,
 	xfs_dablk_t		bno,
-	xfs_daddr_t		mappedbno,
 	struct xfs_buf		**bpp,
 	int			whichfork)
 {
@@ -2588,22 +2587,11 @@ xfs_da_get_buf(
 	int			error;
 
 	*bpp = NULL;
-
+	error = xfs_dabuf_map(dp, bno, 0, whichfork, &mapp, &nmap);
-	if (mappedbno >= 0) {
-		bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, mappedbno,
-				XFS_FSB_TO_BB(mp,
-					xfs_dabuf_nfsb(mp, whichfork)), 0);
-		goto done;
-	}
-
-	error = xfs_dabuf_map(dp, bno,
-			mappedbno == -1 ? XFS_DABUF_MAP_HOLE_OK : 0,
-			whichfork, &mapp, &nmap);
 	if (error || nmap == 0)
 		goto out_free;
 
 	bp = xfs_trans_get_buf_map(tp, mp->m_ddev_targp, mapp, nmap, 0);
-done:
 	error = bp ? bp->b_error : -EIO;
 	if (error) {
 		if (bp)

fs/xfs/libxfs/xfs_da_btree.h

@@ -203,8 +203,7 @@ int	xfs_da_grow_inode(xfs_da_args_t *args, xfs_dablk_t *new_blkno);
 int	xfs_da_grow_inode_int(struct xfs_da_args *args, xfs_fileoff_t *bno,
 			      int count);
 int	xfs_da_get_buf(struct xfs_trans *trans, struct xfs_inode *dp,
-			      xfs_dablk_t bno, xfs_daddr_t mappedbno,
+		xfs_dablk_t bno, struct xfs_buf **bp, int whichfork);
-			      struct xfs_buf **bp, int whichfork);
 int	xfs_da_read_buf(struct xfs_trans *trans, struct xfs_inode *dp,
 		xfs_dablk_t bno, unsigned int flags, struct xfs_buf **bpp,
 		int whichfork, const struct xfs_buf_ops *ops);

fs/xfs/libxfs/xfs_dir2_data.c

@@ -679,7 +679,7 @@ xfs_dir3_data_init(
 	 * Get the buffer set up for the block.
 	 */
 	error = xfs_da_get_buf(tp, dp, xfs_dir2_db_to_da(args->geo, blkno),
-			       -1, &bp, XFS_DATA_FORK);
+			       &bp, XFS_DATA_FORK);
 	if (error)
 		return error;
 	bp->b_ops = &xfs_dir3_data_buf_ops;

fs/xfs/libxfs/xfs_dir2_leaf.c

@@ -355,7 +355,7 @@ xfs_dir3_leaf_get_buf(
 	       bno < xfs_dir2_byte_to_db(args->geo, XFS_DIR2_FREE_OFFSET));
 
 	error = xfs_da_get_buf(tp, dp, xfs_dir2_db_to_da(args->geo, bno),
-			       -1, &bp, XFS_DATA_FORK);
+			       &bp, XFS_DATA_FORK);
 	if (error)
 		return error;
 

fs/xfs/libxfs/xfs_dir2_node.c

@@ -324,7 +324,7 @@ xfs_dir3_free_get_buf(
 	struct xfs_dir3_icfree_hdr hdr;
 
 	error = xfs_da_get_buf(tp, dp, xfs_dir2_db_to_da(args->geo, fbno),
-				   -1, &bp, XFS_DATA_FORK);
+			&bp, XFS_DATA_FORK);
 	if (error)
 		return error;
 

fs/xfs/xfs_attr_inactive.c

@@ -196,6 +196,7 @@ xfs_attr3_node_inactive(
 	struct xfs_buf		*bp,
 	int			level)
 {
+	struct xfs_mount	*mp = dp->i_mount;
 	struct xfs_da_blkinfo	*info;
 	xfs_dablk_t		child_fsb;
 	xfs_daddr_t		parent_blkno, child_blkno;
@@ -267,10 +268,16 @@ xfs_attr3_node_inactive(
 		/*
 		 * Remove the subsidiary block from the cache and from the log.
 		 */
-		error = xfs_da_get_buf(*trans, dp, 0, child_blkno, &child_bp,
+		child_bp = xfs_trans_get_buf(*trans, mp->m_ddev_targp,
-				       XFS_ATTR_FORK);
+				child_blkno,
-		if (error)
+				XFS_FSB_TO_BB(mp, mp->m_attr_geo->fsbcount), 0);
+		if (!child_bp)
+			return -EIO;
+		error = bp->b_error;
+		if (error) {
+			xfs_trans_brelse(*trans, child_bp);
 			return error;
+		}
 		xfs_trans_binval(*trans, child_bp);
 
 		/*
@@ -311,6 +318,7 @@ xfs_attr3_root_inactive(
 	struct xfs_trans	**trans,
 	struct xfs_inode	*dp)
 {
+	struct xfs_mount	*mp = dp->i_mount;
 	struct xfs_da_blkinfo	*info;
 	struct xfs_buf		*bp;
 	xfs_daddr_t		blkno;
@@ -353,9 +361,15 @@ xfs_attr3_root_inactive(
 	/*
 	 * Invalidate the incore copy of the root block.
 	 */
-	error = xfs_da_get_buf(*trans, dp, 0, blkno, &bp, XFS_ATTR_FORK);
+	bp = xfs_trans_get_buf(*trans, mp->m_ddev_targp, blkno,
-	if (error)
+			XFS_FSB_TO_BB(mp, mp->m_attr_geo->fsbcount), 0);
+	if (!bp)
+		return -EIO;
+	error = bp->b_error;
+	if (error) {
+		xfs_trans_brelse(*trans, bp);
 		return error;
+	}
 	xfs_trans_binval(*trans, bp);	/* remove from cache */
 	/*
 	 * Commit the invalidate and start the next transaction.