diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 44ce5c6..d45ba45 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -275,8 +275,14 @@
 
 static int ecryptfs_flush(struct file *file, fl_owner_t td)
 {
-	return file->f_mode & FMODE_WRITE
-	       ? filemap_write_and_wait(file->f_mapping) : 0;
+	struct file *lower_file = ecryptfs_file_to_lower(file);
+
+	if (lower_file->f_op && lower_file->f_op->flush) {
+		filemap_write_and_wait(file->f_mapping);
+		return lower_file->f_op->flush(lower_file, td);
+	}
+
+	return 0;
 }
 
 static int ecryptfs_release(struct inode *inode, struct file *file)