diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 72a334978f69..fd86d536ff27 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3687,6 +3687,9 @@ static int ext4_iomap_alloc(struct inode *inode, struct ext4_map_blocks *map,
 	int ret, dio_credits, m_flags = 0, retries = 0;
 	bool force_commit = false;
 
+	if (flags & IOMAP_NOWAIT)
+		return -EAGAIN;
+
 	/*
 	 * Trim the mapping request to the maximum value that we can map at
 	 * once for direct I/O.