diff --git a/modules/cas_disk/disk.c b/modules/cas_disk/disk.c
index abcfa9b..b8569ed 100644
--- a/modules/cas_disk/disk.c
+++ b/modules/cas_disk/disk.c
@@ -15,7 +15,6 @@
 #define CASDSK_DISK_OPEN_FMODE (FMODE_READ | FMODE_WRITE)
 
 static const char * const _casdsk_disk_modes[] = {
-	[CASDSK_MODE_UNKNOWN] = "unknown",
 	[CASDSK_MODE_ATTACHED] = "attached",
 };
 
@@ -131,8 +130,6 @@ struct casdsk_disk *casdsk_disk_open(const char *path, void *private)
 		goto error_kstrdup;
 	}
 
-	atomic_set(&dsk->mode, CASDSK_MODE_UNKNOWN);
-
 	dsk->bd = open_bdev_exclusive(path, CASDSK_DISK_OPEN_FMODE, dsk);
 	if (IS_ERR(dsk->bd)) {
 		CASDSK_DEBUG_ERROR("Cannot open exclusive");
@@ -222,40 +219,6 @@ void casdsk_disk_close(struct casdsk_disk *dsk)
 }
 EXPORT_SYMBOL(casdsk_disk_close);
 
-void __exit casdsk_disk_shutdown_all(void)
-{
-	struct list_head *item, *n;
-	struct casdsk_disk *dsk;
-
-	CASDSK_DEBUG_TRACE();
-
-	mutex_lock(&casdsk_module->lock);
-
-	list_for_each_safe(item, n, &casdsk_module->disk_list) {
-		dsk = list_entry(item, struct casdsk_disk, list);
-
-		list_del(item);
-
-		casdsk_disk_lock(dsk);
-
-		BUG_ON(!casdsk_disk_is_unknown(dsk));
-
-		atomic_set(&dsk->mode, CASDSK_MODE_SHUTDOWN);
-
-		if (dsk->exp_obj) {
-			casdsk_exp_obj_lock(dsk);
-			casdsk_exp_obj_destroy(dsk);
-			casdsk_exp_obj_unlock(dsk);
-		}
-
-		casdsk_disk_unlock(dsk);
-		__casdsk_disk_close(dsk);
-
-	}
-
-	mutex_unlock(&casdsk_module->lock);
-}
-
 struct block_device *casdsk_disk_get_blkdev(struct casdsk_disk *dsk)
 {
 	BUG_ON(!dsk);
diff --git a/modules/cas_disk/disk.h b/modules/cas_disk/disk.h
index 2937e77..4c2b658 100644
--- a/modules/cas_disk/disk.h
+++ b/modules/cas_disk/disk.h
@@ -13,7 +13,6 @@
 
 struct casdsk_exp_obj;
 
-#define CASDSK_MODE_UNKNOWN		0
 #define CASDSK_MODE_ATTACHED		(1 << 1)
 #define CASDSK_MODE_SHUTDOWN		(1 << 2)
 
@@ -45,8 +44,6 @@ struct casdsk_disk {
 int __init casdsk_init_disks(void);
 void casdsk_deinit_disks(void);
 
-void __exit casdsk_disk_shutdown_all(void);
-
 int casdsk_disk_allocate_minors(int count);
 
 static inline void casdsk_disk_lock(struct casdsk_disk *dsk)
@@ -76,9 +73,4 @@ static inline bool casdsk_disk_is_shutdown(struct casdsk_disk *dsk)
 			CASDSK_MODE_SHUTDOWN;
 }
 
-static inline bool casdsk_disk_is_unknown(struct casdsk_disk *dsk)
-{
-	return atomic_read(&dsk->mode) == CASDSK_MODE_UNKNOWN;
-}
-
 #endif
diff --git a/modules/cas_disk/exp_obj.c b/modules/cas_disk/exp_obj.c
index 77b2ece..b59aba7 100644
--- a/modules/cas_disk/exp_obj.c
+++ b/modules/cas_disk/exp_obj.c
@@ -647,7 +647,6 @@ int casdsk_exp_obj_destroy(struct casdsk_disk *dsk)
 
 	blk_mq_free_tag_set(&dsk->tag_set);
 
-	atomic_set(&dsk->mode, CASDSK_MODE_UNKNOWN);
 	put_disk(exp_obj->gd);
 
 	return 0;
diff --git a/modules/cas_disk/main.c b/modules/cas_disk/main.c
index 8711ffa..48ff31b 100644
--- a/modules/cas_disk/main.c
+++ b/modules/cas_disk/main.c
@@ -1,7 +1,7 @@
 /*
-* Copyright(c) 2012-2021 Intel Corporation
-* SPDX-License-Identifier: BSD-3-Clause
-*/
+ * Copyright(c) 2012-2022 Intel Corporation
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
 
 #include <linux/module.h>
 #include <linux/fs.h>
@@ -112,7 +112,6 @@ static void __exit casdsk_deinit_kobjects(void)
 
 static void __exit casdsk_exit_module(void)
 {
-	casdsk_disk_shutdown_all();
 	casdsk_deinit_disks();
 	casdsk_deinit_exp_objs();
 	casdsk_deinit_kobjects();