diff --git a/kmod/src/data.c b/kmod/src/data.c
index 78dd74ad..54a1857b 100644
--- a/kmod/src/data.c
+++ b/kmod/src/data.c
@@ -1807,37 +1807,6 @@ int scoutfs_data_wait_check_iov(struct inode *inode, const struct iovec *iov,
 	return ret;
 }
 
-int scoutfs_data_wait_check_iter(struct inode *inode, loff_t pos, struct iov_iter *iter,
-				 u8 sef, u8 op, struct scoutfs_data_wait *dw,
-				 struct scoutfs_lock *lock)
-{
-	size_t count = iov_iter_count(iter);
-	size_t off = iter->iov_offset;
-	const struct iovec *iov;
-	size_t len;
-	int ret = 0;
-
-	for (iov = iter->iov; count > 0; iov++) {
-		len = iov->iov_len - off;
-		if (len == 0)
-			continue;
-
-		/* aren't we waiting on too much data here ? */
-		ret = scoutfs_data_wait_check(inode, pos, len,
-					      sef, op, dw, lock);
-
-		if (ret != 0)
-			break;
-
-
-		pos += len;
-		count -= len;
-		off = 0;
-	}
-
-	return ret;
-}
-
 int scoutfs_data_wait(struct inode *inode, struct scoutfs_data_wait *dw)
 {
 	DECLARE_DATA_WAIT_ROOT(inode->i_sb, rt);
diff --git a/kmod/src/data.h b/kmod/src/data.h
index 1fbfce9b..a34854eb 100644
--- a/kmod/src/data.h
+++ b/kmod/src/data.h
@@ -65,9 +65,6 @@ int scoutfs_data_wait_check_iov(struct inode *inode, const struct iovec *iov,
 				unsigned long nr_segs, loff_t pos, u8 sef,
 				u8 op, struct scoutfs_data_wait *ow,
 				struct scoutfs_lock *lock);
-int scoutfs_data_wait_check_iter(struct inode *inode, loff_t pos, struct iov_iter *iter,
-				 u8 sef, u8 op, struct scoutfs_data_wait *ow,
-				 struct scoutfs_lock *lock);
 bool scoutfs_data_wait_found(struct scoutfs_data_wait *ow);
 int scoutfs_data_wait(struct inode *inode,
 			      struct scoutfs_data_wait *ow);
diff --git a/kmod/src/file.c b/kmod/src/file.c
index fd31a9d0..f572a55d 100644
--- a/kmod/src/file.c
+++ b/kmod/src/file.c
@@ -171,10 +171,8 @@ retry:
 		goto out;
 
 	if (scoutfs_per_task_add_excl(&si->pt_data_lock, &pt_ent, scoutfs_inode_lock)) {
-		ret = scoutfs_data_wait_check_iter(inode, iocb->ki_pos, to,
-						   SEF_OFFLINE,
-						   SCOUTFS_IOC_DWO_READ,
-						   &dw, scoutfs_inode_lock);
+		ret = scoutfs_data_wait_check(inode, iocb->ki_pos, iov_iter_count(to), SEF_OFFLINE,
+					      SCOUTFS_IOC_DWO_READ, &dw, scoutfs_inode_lock);
 		if (ret != 0)
 			goto out;
 	} else {