--- zzzz-none-000/linux-3.10.107/fs/cachefiles/internal.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/fs/cachefiles/internal.h	2021-02-04 17:41:59.000000000 +0000
@@ -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>
@@ -23,7 +30,7 @@
 #define CACHEFILES_DEBUG_KLEAVE	2
 #define CACHEFILES_DEBUG_KDEBUG	4
 
-#define cachefiles_gfp (__GFP_WAIT | __GFP_NORETRY | __GFP_NOMEMALLOC)
+#define cachefiles_gfp (__GFP_RECLAIM | __GFP_NORETRY | __GFP_NOMEMALLOC)
 
 /*
  * node records
@@ -36,7 +43,6 @@
 	loff_t				i_size;		/* object size */
 	unsigned long			flags;
 #define CACHEFILES_OBJECT_ACTIVE	0		/* T if marked active */
-#define CACHEFILES_OBJECT_BURIED	1		/* T if preemptively buried */
 	atomic_t			usage;		/* object usage count */
 	uint8_t				type;		/* object type */
 	uint8_t				new;		/* T if object new */
@@ -235,6 +241,7 @@
 				       struct cachefiles_xattr *auxdata);
 extern int cachefiles_update_object_xattr(struct cachefiles_object *object,
 					  struct cachefiles_xattr *auxdata);
+extern int cachefiles_check_auxdata(struct cachefiles_object *object);
 extern int cachefiles_check_object_xattr(struct cachefiles_object *object,
 					 struct cachefiles_xattr *auxdata);
 extern int cachefiles_remove_object_xattr(struct cachefiles_cache *cache,
@@ -244,11 +251,10 @@
 /*
  * error handling
  */
-#define kerror(FMT, ...) printk(KERN_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"\n", ##__VA_ARGS__);	\
 	fscache_io_error(&(___cache)->cache);		\
 	set_bit(CACHEFILES_DEAD, &(___cache)->flags);	\
 } while (0)
@@ -309,8 +315,8 @@
 #define ASSERT(X)							\
 do {									\
 	if (unlikely(!(X))) {						\
-		printk(KERN_ERR "\n");					\
-		printk(KERN_ERR "CacheFiles: Assertion failed\n");	\
+		pr_err("\n");						\
+		pr_err("Assertion failed\n");		\
 		BUG();							\
 	}								\
 } while (0)
@@ -318,9 +324,9 @@
 #define ASSERTCMP(X, OP, Y)						\
 do {									\
 	if (unlikely(!((X) OP (Y)))) {					\
-		printk(KERN_ERR "\n");					\
-		printk(KERN_ERR "CacheFiles: Assertion failed\n");	\
-		printk(KERN_ERR "%lx " #OP " %lx is false\n",		\
+		pr_err("\n");						\
+		pr_err("Assertion failed\n");		\
+		pr_err("%lx " #OP " %lx is false\n",			\
 		       (unsigned long)(X), (unsigned long)(Y));		\
 		BUG();							\
 	}								\
@@ -329,8 +335,8 @@
 #define ASSERTIF(C, X)							\
 do {									\
 	if (unlikely((C) && !(X))) {					\
-		printk(KERN_ERR "\n");					\
-		printk(KERN_ERR "CacheFiles: Assertion failed\n");	\
+		pr_err("\n");						\
+		pr_err("Assertion failed\n");		\
 		BUG();							\
 	}								\
 } while (0)
@@ -338,9 +344,9 @@
 #define ASSERTIFCMP(C, X, OP, Y)					\
 do {									\
 	if (unlikely((C) && !((X) OP (Y)))) {				\
-		printk(KERN_ERR "\n");					\
-		printk(KERN_ERR "CacheFiles: Assertion failed\n");	\
-		printk(KERN_ERR "%lx " #OP " %lx is false\n",		\
+		pr_err("\n");						\
+		pr_err("Assertion failed\n");		\
+		pr_err("%lx " #OP " %lx is false\n",			\
 		       (unsigned long)(X), (unsigned long)(Y));		\
 		BUG();							\
 	}								\