diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index ff7d2995d252ee694cbd2e76f545092e53ac6936..669298f088da28d26b2fddbf3613f578d379b5a6 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1670,7 +1670,9 @@ cifs_inode_needs_reval(struct inode *inode)
 	return false;
 }
 
-/* check invalid_mapping flag and zap the cache if it's set */
+/*
+ * Zap the cache. Called when invalid_mapping flag is set.
+ */
 static void
 cifs_invalidate_mapping(struct inode *inode)
 {