diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index a0d97c5a3f15..888176ad5308 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -1107,7 +1107,7 @@ xfs_bioerror_relse(
 	XFS_BUF_UNDELAYWRITE(bp);
 	XFS_BUF_DONE(bp);
 	XFS_BUF_STALE(bp);
-	XFS_BUF_CLR_IODONE_FUNC(bp);
+	bp->b_iodone = NULL;
 	if (!(fl & XBF_ASYNC)) {
 		/*
 		 * Mark b_error and B_ERROR _both_.
diff --git a/fs/xfs/linux-2.6/xfs_buf.h b/fs/xfs/linux-2.6/xfs_buf.h
index 033c152c411c..6a83b46b4bcf 100644
--- a/fs/xfs/linux-2.6/xfs_buf.h
+++ b/fs/xfs/linux-2.6/xfs_buf.h
@@ -276,10 +276,6 @@ void xfs_buf_stale(struct xfs_buf *bp);
 #define XFS_BUF_UNWRITE(bp)	((bp)->b_flags &= ~XBF_WRITE)
 #define XFS_BUF_ISWRITE(bp)	((bp)->b_flags & XBF_WRITE)
 
-#define XFS_BUF_IODONE_FUNC(bp)			((bp)->b_iodone)
-#define XFS_BUF_SET_IODONE_FUNC(bp, func)	((bp)->b_iodone = (func))
-#define XFS_BUF_CLR_IODONE_FUNC(bp)		((bp)->b_iodone = NULL)
-
 #define XFS_BUF_SET_START(bp)			do { } while (0)
 
 #define XFS_BUF_PTR(bp)			(xfs_caddr_t)((bp)->b_addr)
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index 9eacf06932bb..88492916c3dc 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -453,7 +453,7 @@ xfs_buf_item_unpin(
 		if (bip->bli_flags & XFS_BLI_STALE_INODE) {
 			xfs_buf_do_callbacks(bp);
 			bp->b_fspriv = NULL;
-			XFS_BUF_CLR_IODONE_FUNC(bp);
+			bp->b_iodone = NULL;
 		} else {
 			spin_lock(&ailp->xa_lock);
 			xfs_trans_ail_delete(ailp, (xfs_log_item_t *)bip);
@@ -870,8 +870,8 @@ xfs_buf_item_relse(
 
 	bip = bp->b_fspriv;
 	bp->b_fspriv = bip->bli_item.li_bio_list;
-	if (bp->b_fspriv == NULL && XFS_BUF_IODONE_FUNC(bp) != NULL)
-		XFS_BUF_CLR_IODONE_FUNC(bp);
+	if (bp->b_fspriv == NULL)
+		bp->b_iodone = NULL;
 
 	xfs_buf_rele(bp);
 	xfs_buf_item_free(bip);
@@ -907,9 +907,9 @@ xfs_buf_attach_iodone(
 		bp->b_fspriv = lip;
 	}
 
-	ASSERT((XFS_BUF_IODONE_FUNC(bp) == xfs_buf_iodone_callbacks) ||
-	       (XFS_BUF_IODONE_FUNC(bp) == NULL));
-	XFS_BUF_SET_IODONE_FUNC(bp, xfs_buf_iodone_callbacks);
+	ASSERT(bp->b_iodone == NULL ||
+	       bp->b_iodone == xfs_buf_iodone_callbacks);
+	bp->b_iodone = xfs_buf_iodone_callbacks;
 }
 
 /*
@@ -998,7 +998,7 @@ xfs_buf_iodone_callbacks(
 			XFS_BUF_DONE(bp);
 			XFS_BUF_SET_START(bp);
 		}
-		ASSERT(XFS_BUF_IODONE_FUNC(bp));
+		ASSERT(bp->b_iodone != NULL);
 		trace_xfs_buf_item_iodone_async(bp, _RET_IP_);
 		xfs_buf_relse(bp);
 		return;
@@ -1018,7 +1018,7 @@ xfs_buf_iodone_callbacks(
 do_callbacks:
 	xfs_buf_do_callbacks(bp);
 	bp->b_fspriv = NULL;
-	XFS_BUF_CLR_IODONE_FUNC(bp);
+	bp->b_iodone = NULL;
 	xfs_buf_ioend(bp, 0);
 }
 
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 34c6872b5f7b..1314c83ded1c 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -2471,7 +2471,7 @@ xfs_iflush_cluster(
 		 * mark the buffer as an error and call them.  Otherwise
 		 * mark it as stale and brelse.
 		 */
-		if (XFS_BUF_IODONE_FUNC(bp)) {
+		if (bp->b_iodone) {
 			XFS_BUF_UNDONE(bp);
 			XFS_BUF_STALE(bp);
 			XFS_BUF_ERROR(bp,EIO);
@@ -2812,7 +2812,7 @@ xfs_iflush_int(
 		xfs_buf_attach_iodone(bp, xfs_iflush_done, &iip->ili_item);
 
 		ASSERT(bp->b_fspriv != NULL);
-		ASSERT(XFS_BUF_IODONE_FUNC(bp) != NULL);
+		ASSERT(bp->b_iodone != NULL);
 	} else {
 		/*
 		 * We're flushing an inode which is not in the AIL and has
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index a8718ed9776d..06ff8437ed8e 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -1050,7 +1050,7 @@ xlog_alloc_log(xfs_mount_t	*mp,
 	bp = xfs_buf_get_empty(log->l_iclog_size, mp->m_logdev_targp);
 	if (!bp)
 		goto out_free_log;
-	XFS_BUF_SET_IODONE_FUNC(bp, xlog_iodone);
+	bp->b_iodone = xlog_iodone;
 	ASSERT(XFS_BUF_ISBUSY(bp));
 	ASSERT(xfs_buf_islocked(bp));
 	log->l_xbuf = bp;
@@ -1084,7 +1084,7 @@ xlog_alloc_log(xfs_mount_t	*mp,
 		if (!bp)
 			goto out_free_iclog;
 
-		XFS_BUF_SET_IODONE_FUNC(bp, xlog_iodone);
+		bp->b_iodone = xlog_iodone;
 		iclog->ic_bp = bp;
 		iclog->ic_data = bp->b_addr;
 #ifdef DEBUG
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 40c9742aa478..8fe4206de057 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -371,7 +371,7 @@ xlog_recover_iodone(
 		xfs_force_shutdown(bp->b_target->bt_mount,
 					SHUTDOWN_META_IO_ERROR);
 	}
-	XFS_BUF_CLR_IODONE_FUNC(bp);
+	bp->b_iodone = NULL;
 	xfs_buf_ioend(bp, 0);
 }
 
@@ -2178,7 +2178,7 @@ xlog_recover_buffer_pass2(
 		error = xfs_bwrite(mp, bp);
 	} else {
 		ASSERT(bp->b_target->bt_mount == mp);
-		XFS_BUF_SET_IODONE_FUNC(bp, xlog_recover_iodone);
+		bp->b_iodone = xlog_recover_iodone;
 		xfs_bdwrite(mp, bp);
 	}
 
@@ -2438,7 +2438,7 @@ xlog_recover_inode_pass2(
 
 write_inode_buffer:
 	ASSERT(bp->b_target->bt_mount == mp);
-	XFS_BUF_SET_IODONE_FUNC(bp, xlog_recover_iodone);
+	bp->b_iodone = xlog_recover_iodone;
 	xfs_bdwrite(mp, bp);
 error:
 	if (need_free)
@@ -2560,7 +2560,7 @@ xlog_recover_dquot_pass2(
 
 	ASSERT(dq_f->qlf_size == 2);
 	ASSERT(bp->b_target->bt_mount == mp);
-	XFS_BUF_SET_IODONE_FUNC(bp, xlog_recover_iodone);
+	bp->b_iodone = xlog_recover_iodone;
 	xfs_bdwrite(mp, bp);
 
 	return (0);
diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c
index f910e51444a3..15584fc3ed7d 100644
--- a/fs/xfs/xfs_trans_buf.c
+++ b/fs/xfs/xfs_trans_buf.c
@@ -635,8 +635,8 @@ xfs_trans_log_buf(xfs_trans_t	*tp,
 	ASSERT(bp->b_transp == tp);
 	ASSERT(bip != NULL);
 	ASSERT((first <= last) && (last < XFS_BUF_COUNT(bp)));
-	ASSERT((XFS_BUF_IODONE_FUNC(bp) == NULL) ||
-	       (XFS_BUF_IODONE_FUNC(bp) == xfs_buf_iodone_callbacks));
+	ASSERT(bp->b_iodone == NULL ||
+	       bp->b_iodone == xfs_buf_iodone_callbacks);
 
 	/*
 	 * Mark the buffer as needing to be written out eventually,
@@ -652,7 +652,7 @@ xfs_trans_log_buf(xfs_trans_t	*tp,
 	XFS_BUF_DONE(bp);
 
 	ASSERT(atomic_read(&bip->bli_refcount) > 0);
-	XFS_BUF_SET_IODONE_FUNC(bp, xfs_buf_iodone_callbacks);
+	bp->b_iodone = xfs_buf_iodone_callbacks;
 	bip->bli_item.li_cb = xfs_buf_iodone;
 
 	trace_xfs_trans_log_buf(bip);