--- zzzz-none-000/linux-4.4.60/mm/slub.c	2017-04-08 07:53:53.000000000 +0000
+++ honeybee-1240e-714/linux-4.4.60/mm/slub.c	2019-07-03 09:21:34.000000000 +0000
@@ -198,7 +198,7 @@
 
 enum track_item { TRACK_ALLOC, TRACK_FREE };
 
-#ifdef CONFIG_SYSFS
+#ifdef SLAB_SUPPORTS_SYSFS
 static int sysfs_slab_add(struct kmem_cache *);
 static int sysfs_slab_alias(struct kmem_cache *, const char *);
 static void memcg_propagate_slab_attrs(struct kmem_cache *s);
@@ -2200,7 +2200,7 @@
 }
 #endif /* CONFIG_SLUB_DEBUG */
 
-#if defined(CONFIG_SLUB_DEBUG) || defined(CONFIG_SYSFS)
+#if defined(CONFIG_SLUB_DEBUG) || defined(SLAB_SUPPORTS_SYSFS)
 static unsigned long count_partial(struct kmem_cache_node *n,
 					int (*get_count)(struct page *))
 {
@@ -2214,7 +2214,7 @@
 	spin_unlock_irqrestore(&n->list_lock, flags);
 	return x;
 }
-#endif /* CONFIG_SLUB_DEBUG || CONFIG_SYSFS */
+#endif /* CONFIG_SLUB_DEBUG || SLAB_SUPPORTS_SYSFS */
 
 static noinline void
 slab_out_of_memory(struct kmem_cache *s, gfp_t gfpflags, int nid)
@@ -4072,7 +4072,7 @@
 }
 #endif
 
-#ifdef CONFIG_SYSFS
+#ifdef SLAB_SUPPORTS_SYSFS
 static int count_inuse(struct page *page)
 {
 	return page->inuse;
@@ -4082,9 +4082,7 @@
 {
 	return page->objects;
 }
-#endif
 
-#ifdef CONFIG_SLUB_DEBUG
 static int validate_slab(struct kmem_cache *s, struct page *page,
 						unsigned long *map)
 {
@@ -4451,12 +4449,12 @@
 	validate_slab_cache(kmalloc_caches[9]);
 }
 #else
-#ifdef CONFIG_SYSFS
+#ifdef SLAB_SUPPORTS_SYSFS
 static void resiliency_test(void) {};
 #endif
 #endif
 
-#ifdef CONFIG_SYSFS
+#ifdef SLAB_SUPPORTS_SYSFS
 enum slab_stat_type {
 	SL_ALL,			/* All slabs */
 	SL_PARTIAL,		/* Only partially allocated slabs */
@@ -5517,7 +5515,7 @@
 }
 
 __initcall(slab_sysfs_init);
-#endif /* CONFIG_SYSFS */
+#endif /* SLAB_SUPPORTS_SYSFS */
 
 /*
  * The /proc/slabinfo ABI
@@ -5555,3 +5553,44 @@
 	return -EIO;
 }
 #endif /* CONFIG_SLABINFO */
+
+#if defined(CONFIG_AVM_ENHANCED)
+/**
+ * @brief get kmemalloc-area if addr in range 
+ *		  attention! function unsaved for cachep - zone-page-spinlock necessary
+ * @return start (zero if not exist)
+ */
+unsigned long get_kmemalloc_area(unsigned long addr, unsigned long *caller, const char **cache_name, 
+								 unsigned long *size, int *freed){
+	unsigned int obj_idx;
+	void *base;
+	unsigned long kstart;
+	struct kmem_cache *cachep;
+	struct page *page = virt_to_head_page((void *)addr);
+
+	if(!virt_addr_valid(page)) {
+		return 0;
+	}
+	cachep = page->slab_cache;
+	if(!virt_addr_valid(cachep)) {
+		return 0;
+	}
+#if 0
+	pr_err("%s: %s: %u: %08lx: %s(size=%u objects=%u) page=%p(%p)\n", __FILE__, __func__, __LINE__, addr, cachep->name, 
+			cachep->size, page->objects,
+			page, page_address(page));
+#endif
+	base = page_address(page);
+	if(((void *)addr < base) || ((void *)addr >= (base + page->objects * cachep->size))) {
+		/*--- pr_err("%s: %s: %u:\n", __FILE__, __func__, __LINE__); ---*/
+		return 0;
+	}
+	obj_idx = slab_index((void *)addr, cachep, base);
+	kstart  = (unsigned long)base + (cachep->size * obj_idx);
+	if(caller)     *caller     = 0;
+	if(cache_name) *cache_name = cachep->name;
+	if(size)	   *size	   = cachep->size;
+	if(freed)      *freed	   = 0;
+	return kstart;
+}
+#endif /*--- #if defined(CONFIG_AVM_ENHANCED) ---*/