1 files changed, 17 insertions, 14 deletions

diff --git a/drivers/staging/zsmalloc/zsmalloc-main.c b/drivers/staging/zsmalloc/zsmalloc-main.c
index 09a9d35d436f..e78d262c5249 100644
--- a/drivers/staging/zsmalloc/zsmalloc-main.c
+++ b/drivers/staging/zsmalloc/zsmalloc-main.c
@@ -141,7 +141,7 @@
  *  ZS_MIN_ALLOC_SIZE and ZS_SIZE_CLASS_DELTA must be multiple of ZS_ALIGN
  *  (reason above)
  */
-#define ZS_SIZE_CLASS_DELTA	16
+#define ZS_SIZE_CLASS_DELTA	(PAGE_SIZE >> 8)
 #define ZS_SIZE_CLASSES		((ZS_MAX_ALLOC_SIZE - ZS_MIN_ALLOC_SIZE) / \
 					ZS_SIZE_CLASS_DELTA + 1)
 
@@ -207,7 +207,6 @@ struct zs_pool {
 	struct size_class size_class[ZS_SIZE_CLASSES];
 
 	gfp_t flags;	/* allocation flags used when growing pool */
-	const char *name;
 };
 
 /*
@@ -222,11 +221,9 @@ struct zs_pool {
 /*
  * By default, zsmalloc uses a copy-based object mapping method to access
  * allocations that span two pages. However, if a particular architecture
- * 1) Implements local_flush_tlb_kernel_range() and 2) Performs VM mapping
- * faster than copying, then it should be added here so that
- * USE_PGTABLE_MAPPING is defined. This causes zsmalloc to use page table
- * mapping rather than copying
- * for object mapping.
+ * performs VM mapping faster than copying, then it should be added here
+ * so that USE_PGTABLE_MAPPING is defined. This causes zsmalloc to use
+ * page table mapping rather than copying for object mapping.
 */
 #if defined(CONFIG_ARM)
 #define USE_PGTABLE_MAPPING
@@ -475,7 +472,7 @@ static void reset_page(struct page *page)
 	set_page_private(page, 0);
 	page->mapping = NULL;
 	page->freelist = NULL;
-	reset_page_mapcount(page);
+	page_mapcount_reset(page);
 }
 
 static void free_zspage(struct page *first_page)
@@ -663,7 +660,7 @@ static inline void __zs_unmap_object(struct mapping_area *area,
 
 	flush_cache_vunmap(addr, end);
 	unmap_kernel_range_noflush(addr, PAGE_SIZE * 2);
-	local_flush_tlb_kernel_range(addr, end);
+	flush_tlb_kernel_range(addr, end);
 }
 
 #else /* USE_PGTABLE_MAPPING */
@@ -798,14 +795,21 @@ fail:
 	return notifier_to_errno(ret);
 }
 
-struct zs_pool *zs_create_pool(const char *name, gfp_t flags)
+/**
+ * zs_create_pool - Creates an allocation pool to work from.
+ * @flags: allocation flags used to allocate pool metadata
+ *
+ * This function must be called before anything when using
+ * the zsmalloc allocator.
+ *
+ * On success, a pointer to the newly created pool is returned,
+ * otherwise NULL.
+ */
+struct zs_pool *zs_create_pool(gfp_t flags)
 {
 	int i, ovhd_size;
 	struct zs_pool *pool;
 
-	if (!name)
-		return NULL;
-
 	ovhd_size = roundup(sizeof(*pool), PAGE_SIZE);
 	pool = kzalloc(ovhd_size, GFP_KERNEL);
 	if (!pool)
@@ -828,7 +832,6 @@ struct zs_pool *zs_create_pool(const char *name, gfp_t flags)
 	}
 
 	pool->flags = flags;
-	pool->name = name;
 
 	return pool;
 }