xfs: remove unnecessary int returns from deferred bmap functions

Remove the return value from the functions that schedule deferred bmap
operations since they never fail and do not return status.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>

fs/xfs/libxfs/xfs_bmap.c

@@ -6085,29 +6085,29 @@ __xfs_bmap_add(
 }
 
 /* Map an extent into a file. */
-int
+void
 xfs_bmap_map_extent(
 	struct xfs_trans	*tp,
 	struct xfs_inode	*ip,
 	struct xfs_bmbt_irec	*PREV)
 {
 	if (!xfs_bmap_is_update_needed(PREV))
-		return 0;
+		return;
 
-	return __xfs_bmap_add(tp, XFS_BMAP_MAP, ip, XFS_DATA_FORK, PREV);
+	__xfs_bmap_add(tp, XFS_BMAP_MAP, ip, XFS_DATA_FORK, PREV);
 }
 
 /* Unmap an extent out of a file. */
-int
+void
 xfs_bmap_unmap_extent(
 	struct xfs_trans	*tp,
 	struct xfs_inode	*ip,
 	struct xfs_bmbt_irec	*PREV)
 {
 	if (!xfs_bmap_is_update_needed(PREV))
-		return 0;
+		return;
 
-	return __xfs_bmap_add(tp, XFS_BMAP_UNMAP, ip, XFS_DATA_FORK, PREV);
+	__xfs_bmap_add(tp, XFS_BMAP_UNMAP, ip, XFS_DATA_FORK, PREV);
 }
 
 /*

fs/xfs/libxfs/xfs_bmap.h

@@ -254,9 +254,9 @@ int	xfs_bmap_finish_one(struct xfs_trans *tp, struct xfs_inode *ip,
 		enum xfs_bmap_intent_type type, int whichfork,
 		xfs_fileoff_t startoff, xfs_fsblock_t startblock,
 		xfs_filblks_t *blockcount, xfs_exntst_t state);
-int	xfs_bmap_map_extent(struct xfs_trans *tp, struct xfs_inode *ip,
+void	xfs_bmap_map_extent(struct xfs_trans *tp, struct xfs_inode *ip,
 		struct xfs_bmbt_irec *imap);
-int	xfs_bmap_unmap_extent(struct xfs_trans *tp, struct xfs_inode *ip,
+void	xfs_bmap_unmap_extent(struct xfs_trans *tp, struct xfs_inode *ip,
 		struct xfs_bmbt_irec *imap);
 
 static inline int xfs_bmap_fork_to_state(int whichfork)

fs/xfs/xfs_bmap_item.c

@@ -542,9 +542,7 @@ xfs_bui_recover(
 		irec.br_blockcount = count;
 		irec.br_startoff = bmap->me_startoff;
 		irec.br_state = state;
-		error = xfs_bmap_unmap_extent(tp, ip, &irec);
-		if (error)
-			goto err_inode;
+		xfs_bmap_unmap_extent(tp, ip, &irec);
 	}
 
 	set_bit(XFS_BUI_RECOVERED, &buip->bui_flags);

fs/xfs/xfs_bmap_util.c

@@ -1532,24 +1532,16 @@ xfs_swap_extent_rmap(
 			trace_xfs_swap_extent_rmap_remap_piece(tip, &uirec);
 
 			/* Remove the mapping from the donor file. */
-			error = xfs_bmap_unmap_extent(tp, tip, &uirec);
-			if (error)
-				goto out;
+			xfs_bmap_unmap_extent(tp, tip, &uirec);
 
 			/* Remove the mapping from the source file. */
-			error = xfs_bmap_unmap_extent(tp, ip, &irec);
-			if (error)
-				goto out;
+			xfs_bmap_unmap_extent(tp, ip, &irec);
 
 			/* Map the donor file's blocks into the source file. */
-			error = xfs_bmap_map_extent(tp, ip, &uirec);
-			if (error)
-				goto out;
+			xfs_bmap_map_extent(tp, ip, &uirec);
 
 			/* Map the source file's blocks into the donor file. */
-			error = xfs_bmap_map_extent(tp, tip, &irec);
-			if (error)
-				goto out;
+			xfs_bmap_map_extent(tp, tip, &irec);
 
 			error = xfs_defer_finish(tpp);
 			tp = *tpp;

fs/xfs/xfs_reflink.c

@@ -676,9 +676,7 @@ xfs_reflink_end_cow_extent(
 	xfs_refcount_free_cow_extent(tp, del.br_startblock, del.br_blockcount);
 
 	/* Map the new blocks into the data fork. */
-	error = xfs_bmap_map_extent(tp, ip, &del);
-	if (error)
-		goto out_cancel;
+	xfs_bmap_map_extent(tp, ip, &del);
 
 	/* Charge this new data fork mapping to the on-disk quota. */
 	xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_DELBCOUNT,
@@ -1068,9 +1066,7 @@ xfs_reflink_remap_extent(
 		xfs_refcount_increase_extent(tp, &uirec);
 
 		/* Map the new blocks into the data fork. */
-		error = xfs_bmap_map_extent(tp, ip, &uirec);
-		if (error)
-			goto out_cancel;
+		xfs_bmap_map_extent(tp, ip, &uirec);
 
 		/* Update quota accounting. */
 		xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_BCOUNT,