diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
index 5c7ec64..3d50998 100644
--- a/fs/cachefiles/internal.h
+++ b/fs/cachefiles/internal.h
@@ -9,6 +9,13 @@
  * 2 of the Licence, or (at your option) any later version.
  */
 
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define pr_fmt(fmt) "CacheFiles: " fmt
+
+
 #include <linux/fscache-cache.h>
 #include <linux/timer.h>
 #include <linux/wait.h>
@@ -245,11 +252,10 @@
 /*
  * error handling
  */
-#define kerror(FMT, ...) pr_err("CacheFiles: "FMT"\n", ##__VA_ARGS__)
 
 #define cachefiles_io_error(___cache, FMT, ...)		\
 do {							\
-	kerror("I/O Error: " FMT, ##__VA_ARGS__);	\
+	pr_err("I/O Error: " FMT, ##__VA_ARGS__);	\
 	fscache_io_error(&(___cache)->cache);		\
 	set_bit(CACHEFILES_DEAD, &(___cache)->flags);	\
 } while (0)
@@ -311,7 +317,7 @@
 do {									\
 	if (unlikely(!(X))) {						\
 		pr_err("\n");						\
-		pr_err("CacheFiles: Assertion failed\n");		\
+		pr_err("Assertion failed\n");		\
 		BUG();							\
 	}								\
 } while (0)
@@ -320,7 +326,7 @@
 do {									\
 	if (unlikely(!((X) OP (Y)))) {					\
 		pr_err("\n");						\
-		pr_err("CacheFiles: Assertion failed\n");		\
+		pr_err("Assertion failed\n");		\
 		pr_err("%lx " #OP " %lx is false\n",			\
 		       (unsigned long)(X), (unsigned long)(Y));		\
 		BUG();							\
@@ -331,7 +337,7 @@
 do {									\
 	if (unlikely((C) && !(X))) {					\
 		pr_err("\n");						\
-		pr_err("CacheFiles: Assertion failed\n");		\
+		pr_err("Assertion failed\n");		\
 		BUG();							\
 	}								\
 } while (0)
@@ -340,7 +346,7 @@
 do {									\
 	if (unlikely((C) && !((X) OP (Y)))) {				\
 		pr_err("\n");						\
-		pr_err("CacheFiles: Assertion failed\n");		\
+		pr_err("Assertion failed\n");		\
 		pr_err("%lx " #OP " %lx is false\n",			\
 		       (unsigned long)(X), (unsigned long)(Y));		\
 		BUG();							\