diff --git a/kmod/src/data.c b/kmod/src/data.c
index 68ca9345..eeb9081a 100644
--- a/kmod/src/data.c
+++ b/kmod/src/data.c
@@ -599,7 +599,8 @@ out:
  * partial progress.
  */
 int scoutfs_data_truncate_items(struct super_block *sb, u64 ino, u64 iblock,
-				u64 len, bool offline)
+				u64 len, bool offline,
+				struct scoutfs_lock *lock)
 {
 	struct scoutfs_key_buf last_key;
 	struct scoutfs_key_buf key;
@@ -633,7 +634,7 @@ int scoutfs_data_truncate_items(struct super_block *sb, u64 ino, u64 iblock,
 		init_mapping_key(&key, &bmk, ino, iblock);
 		scoutfs_kvec_init(val, map->encoded, sizeof(map->encoded));
 
-		ret = scoutfs_item_next(sb, &key, &last_key, val, NULL);
+		ret = scoutfs_item_next(sb, &key, &last_key, val, lock->end);
 		if (ret < 0) {
 			if (ret == -ENOENT)
 				ret = 0;
@@ -669,7 +670,8 @@ int scoutfs_data_truncate_items(struct super_block *sb, u64 ino, u64 iblock,
 
 			if (!dirtied) {
 				/* dirty item with full size encoded */
-				ret = scoutfs_item_update(sb, &key, val, NULL);
+				ret = scoutfs_item_update(sb, &key, val,
+							  lock->end);
 				if (ret)
 					break;
 				dirtied = true;
diff --git a/kmod/src/data.h b/kmod/src/data.h
index 04dd9050..0dcd23a6 100644
--- a/kmod/src/data.h
+++ b/kmod/src/data.h
@@ -5,7 +5,8 @@ extern const struct address_space_operations scoutfs_file_aops;
 extern const struct file_operations scoutfs_file_fops;
 
 int scoutfs_data_truncate_items(struct super_block *sb, u64 ino, u64 iblock,
-				u64 len, bool offline);
+				u64 len, bool offline,
+				struct scoutfs_lock *lock);
 int scoutfs_data_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 			u64 start, u64 len);
 
diff --git a/kmod/src/ioctl.c b/kmod/src/ioctl.c
index a7b794da..17747af8 100644
--- a/kmod/src/ioctl.c
+++ b/kmod/src/ioctl.c
@@ -331,6 +331,7 @@ static long scoutfs_ioc_release(struct file *file, unsigned long arg)
 	struct inode *inode = file_inode(file);
 	struct super_block *sb = inode->i_sb;
 	struct scoutfs_ioctl_release args;
+	struct scoutfs_lock *lock = NULL;
 	loff_t start;
 	loff_t end_inc;
 	int ret;
@@ -352,6 +353,11 @@ static long scoutfs_ioc_release(struct file *file, unsigned long arg)
 
 	mutex_lock(&inode->i_mutex);
 
+	ret = scoutfs_lock_inode(sb, DLM_LOCK_EX, SCOUTFS_LKF_REFRESH_INODE,
+				 inode, &lock);
+	if (ret)
+		goto out;
+
 	if (!S_ISREG(inode->i_mode)) {
 		ret = -EINVAL;
 		goto out;
@@ -375,8 +381,9 @@ static long scoutfs_ioc_release(struct file *file, unsigned long arg)
 	truncate_inode_pages_range(&inode->i_data, start, end_inc);
 
 	ret = scoutfs_data_truncate_items(sb, scoutfs_ino(inode), args.block,
-					  args.count, true);
+					  args.count, true, lock);
 out:
+	scoutfs_unlock(sb, lock, DLM_LOCK_EX);
 	mutex_unlock(&inode->i_mutex);
 	mnt_drop_write_file(file);