diff --git a/fs/hmfs/hash.c b/fs/hmfs/hash.c
index 9ae67cbc..dfa81721 100644
--- a/fs/hmfs/hash.c
+++ b/fs/hmfs/hash.c
@@ -19,6 +19,10 @@
 /*
  * Hashing code copied from ext3
  */
+ 
+/*
+ * this is a test from me
+ */
 #define DELTA 0x9E3779B9
 
 static void TEA_transform(unsigned int buf[4], unsigned int const in[])
diff --git a/fs/hmfs/super.c b/fs/hmfs/super.c
index 55f49e38..3bf59d92 100644
--- a/fs/hmfs/super.c
+++ b/fs/hmfs/super.c
@@ -64,6 +64,10 @@ static const match_table_t tokens = {
 /*
  * ioremap & iounmap
  */
+ 
+/*
+ * 观superblock有感
+ */
 static inline void *hmfs_ioremap(struct super_block *sb, phys_addr_t phys_addr,
 				ssize_t size)
 {