diff --git a/prefetch_mod.c b/prefetch_mod.c
index 5d2189541db4be009598d0d0eb993557e9dfe90e..c8dd790020f9b04ed5c8a67653c8c3b8e97052b0 100644
--- a/prefetch_mod.c
+++ b/prefetch_mod.c
@@ -33,9 +33,9 @@ static cfg_t __percpu *cur_cfg;
 static cfg_t __percpu *old_cfg;
 static DEFINE_MUTEX(prefetch_mtx);
 
-static ssize_t cache_store(struct device* dev,
+static ssize_t read_unique_store(struct device* dev,
 		struct device_attribute* attr, const char* buf, size_t count);
-static ssize_t cache_show(struct device* dev,
+static ssize_t read_unique_show(struct device* dev,
 		struct device_attribute* attr, char* buf);
 static ssize_t prefetch_store(struct device* dev,
 		struct device_attribute* attr, const char* buf, size_t count);
@@ -47,8 +47,8 @@ static ssize_t prefetch_mask_show(struct device* dev,
 				struct device_attribute* attr, char* buf);
 
 /* Device create */
-static DEVICE_ATTR(cache, S_IRUGO|S_IWUSR,
-        cache_show, cache_store);
+static DEVICE_ATTR(read_unique, S_IRUGO|S_IWUSR,
+        read_unique_show, read_unique_store);
 
 static DEVICE_ATTR(policy, S_IRUGO|S_IWUSR,
 		prefetch_show, prefetch_store);
@@ -60,7 +60,7 @@ static DEVICE_ATTR(cpumask, S_IRUGO|S_IWUSR,
 static struct attribute *prefetch_attrs[] = {
     &dev_attr_policy.attr,
     &dev_attr_cpumask.attr,
-    &dev_attr_cache.attr,
+    &dev_attr_read_unique.attr,
     NULL,
 };
 
@@ -80,7 +80,7 @@ static struct miscdevice misc = {
 };
 
 /* 0--close, 1--open */
-static ssize_t cache_store(struct device* dev,
+static ssize_t read_unique_store(struct device* dev,
 		struct device_attribute* attr, const char* buf, size_t count)
 {
     ssize_t ret;
@@ -93,13 +93,13 @@ static ssize_t cache_store(struct device* dev,
     }
 
     mutex_lock(&prefetch_mtx);
-    on_each_cpu_mask(prefetch_cpumask_value, cache_set, &value, 1);
+    on_each_cpu_mask(prefetch_cpumask_value, read_unique_set, &value, 1);
     mutex_unlock(&prefetch_mtx);
 
     return count;
 }
 
-static ssize_t cache_show(struct device* dev,
+static ssize_t read_unique_show(struct device* dev,
 		struct device_attribute* attr, char* buf)
 {
     int cpu;
@@ -111,7 +111,7 @@ static ssize_t cache_show(struct device* dev,
         return -ENOMEM;
     }
     mutex_lock(&prefetch_mtx);
-    on_each_cpu_mask(prefetch_cpumask_value, cache_get, cur, 1);
+    on_each_cpu_mask(prefetch_cpumask_value, read_unique_get, cur, 1);
     
     for_each_cpu(cpu, prefetch_cpumask_value) {
         int *ptr = per_cpu_ptr(cur, cpu);
diff --git a/prefetch_mod.h b/prefetch_mod.h
index 65b7380333ca8c986c82e8dec1920f7c0e17927f..b028ee21d35d6e51e13807d013c06114507914e7 100644
--- a/prefetch_mod.h
+++ b/prefetch_mod.h
@@ -22,8 +22,8 @@ typedef long cfg_t;
 
 extern void set_prefetch(void* dummy);
 extern void get_prefetch(void* dummy);
-extern void cache_set(void *dummy);
-extern void cache_get(void *dummy);
+extern void read_unique_set(void *dummy);
+extern void read_unique_get(void *dummy);
 extern void reset_prefetch(void* dummy);
 
 extern int prefetch_policy_num(void);
diff --git a/prefetch_reg.c b/prefetch_reg.c
index 5bccfca41e310f5f3177cf611c0786177fa9be36..8a06d6dc5faa7685026d37dd059b1e4bbb28b290 100644
--- a/prefetch_reg.c
+++ b/prefetch_reg.c
@@ -107,7 +107,7 @@ void get_prefetch(void* dummy)
     return;
 }
 
-void cache_set(void *dummy)
+void read_unique_set(void *dummy)
 {
     int *value = (int *)dummy;
     if (*value == ENABLE)
@@ -118,7 +118,7 @@ void cache_set(void *dummy)
     return;
 }
 
-void cache_get(void *dummy)
+void read_unique_get(void *dummy)
 {
     int *value = this_cpu_ptr((int __percpu *)dummy);
     u64 reg_value = read_sysreg(S3_1_c15_c6_4);
@@ -139,12 +139,12 @@ void get_prefetch(void* dummy)
     return;
 }
 
-void cache_set(void *dummy)
+void read_unique_set(void *dummy)
 {
     return;
 }
 
-void cache_get(void *dummy)
+void read_unique_get(void *dummy)
 {
     return;
 }