diff --git a/iscsi-scst/kernel/isert-scst/iser_global.c b/iscsi-scst/kernel/isert-scst/iser_global.c
index fc64702cb..a7882c7b2 100644
--- a/iscsi-scst/kernel/isert-scst/iser_global.c
+++ b/iscsi-scst/kernel/isert-scst/iser_global.c
@@ -144,8 +144,10 @@ int isert_global_init(void)
 		return -ENOMEM;
 	}
 
-	isert_cmnd_cache = KMEM_CACHE_USERCOPY(isert_cmnd,
-				     SCST_SLAB_FLAGS|SLAB_HWCACHE_ALIGN);
+	isert_cmnd_cache = kmem_cache_create_usercopy("isert_cmnd",
+		sizeof(struct isert_cmnd), __alignof__(struct isert_cmnd),
+		SCST_SLAB_FLAGS | SLAB_HWCACHE_ALIGN,
+		0, sizeof(struct isert_cmnd), NULL);
 	if (!isert_cmnd_cache) {
 		destroy_workqueue(isert_glob.conn_wq);
 		PRINT_ERROR("Failed to alloc iser command cache");
diff --git a/scst/include/backport.h b/scst/include/backport.h
index acad11f28..4d2f691f4 100644
--- a/scst/include/backport.h
+++ b/scst/include/backport.h
@@ -680,7 +680,7 @@ static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags)
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 23)
 static inline struct kmem_cache *kmem_cache_create_usercopy(const char *name,
 			unsigned int size, unsigned int align,
-			slab_flags_t flags,
+			unsigned long flags,
 			unsigned int useroffset, unsigned int usersize,
 			void (*ctor)(void *))
 {
@@ -689,7 +689,7 @@ static inline struct kmem_cache *kmem_cache_create_usercopy(const char *name,
 #elif LINUX_VERSION_CODE < KERNEL_VERSION(4, 16, 0)
 static inline struct kmem_cache *kmem_cache_create_usercopy(const char *name,
 			unsigned int size, unsigned int align,
-			slab_flags_t flags,
+			unsigned long flags,
 			unsigned int useroffset, unsigned int usersize,
 			void (*ctor)(void *))
 {