diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index 14efe46df91e..6f03de747e37 100644
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -396,10 +396,7 @@ static int ntfs_file_mmap(struct file *file, struct vm_area_struct *vma)
 		}
 
 		if (ni->i_valid < to) {
-			if (!inode_trylock(inode)) {
-				err = -EAGAIN;
-				goto out;
-			}
+			inode_lock(inode);
 			err = ntfs_extend_initialized_size(file, ni,
 							   ni->i_valid, to);
 			inode_unlock(inode);