diff --git a/modules/cas_cache/classifier.c b/modules/cas_cache/classifier.c
index dbd3a83..d7b4995 100644
--- a/modules/cas_cache/classifier.c
+++ b/modules/cas_cache/classifier.c
@@ -1090,11 +1090,7 @@ static struct cas_classifier *_cas_cls_init(void)
 
 	INIT_LIST_HEAD(&cls->rules);
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36)
 	cls->wq = alloc_workqueue("kcas_clsd", WQ_UNBOUND | WQ_FREEZABLE, 1);
-#else
-	cls->wq = create_singlethread_workqueue("kcas_clsd");
-#endif
 	if (!cls->wq) {
 		kfree(cls);
 		return ERR_PTR(-ENOMEM);
diff --git a/modules/cas_disk/cas_disk_defs.h b/modules/cas_disk/cas_disk_defs.h
index 4c5babc..7f0d299 100644
--- a/modules/cas_disk/cas_disk_defs.h
+++ b/modules/cas_disk/cas_disk_defs.h
@@ -50,7 +50,6 @@ extern struct casdsk_module *casdsk_module;
 #define CASDSK_KERN_INFO KERN_INFO""CASDSK_PREFIX_SHORT
 #define CASDSK_KERN_DEBUG KERN_DEBUG""CASDSK_PREFIX_SHORT
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 37)
 static inline struct block_device *open_bdev_exclusive(const char *path,
 						       fmode_t mode,
 						       void *holder)
@@ -74,7 +73,6 @@ static inline void bd_release_from_disk(struct block_device *bdev,
 {
 	return bd_unlink_disk_holder(bdev, disk);
 }
-#endif
 
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 3, 0)
 	#define KRETURN(x)	({ return (x); })