Remove upgrade-in-flight feature

Due to changes in Linux kernel this feature is not working anymore.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>

casadm/Makefile

@@ -56,7 +56,6 @@ OBJS += statistics_view.o
 OBJS += statistics_view_raw_csv.o
 OBJS += csvparse.o
 OBJS += extended_err_msg.o
-OBJS += upgrade.o
 OBJS += safeclib/memmove_s.o
 OBJS += safeclib/memcpy_s.o
 OBJS += safeclib/memset_s.o

casadm/cas_main.c

@@ -21,7 +21,6 @@
 #include "cas_lib_utils.h"
 #include "safeclib/safe_str_lib.h"
 #include <cas_ioctl_codes.h>
-#include "upgrade.h"
 #include "statistics_view.h"
 
 #define HELP_HEADER OCF_PREFIX_LONG
@@ -1447,8 +1446,7 @@ enum {
 
 	script_cmd_min_id = 0,
 
-	script_cmd_upgrade = script_cmd_min_id,
-	script_cmd_check_cache_device,
+	script_cmd_check_cache_device = script_cmd_min_id,
 
 	script_cmd_add_core,
 	script_cmd_remove_core,
@@ -1478,14 +1476,6 @@ enum {
  * script_opt_* .priv fields contains id of commands, where they can be used
  */
 static cli_option script_params_options[] = {
-	[script_cmd_upgrade] = {
-		.short_name = 0,
-		.long_name = "upgrade-in-flight",
-		.args_count = 0,
-		.arg = NULL,
-		.priv = 0,
-		.flags = CLI_COMMAND_HIDDEN,
-	},
 	[script_cmd_check_cache_device] = {
 		.short_name = 0,
 		.long_name = "check-cache-device",
@@ -1696,8 +1686,6 @@ int script_handle() {
 	switch (command_args_values.script_subcmd) {
 	case script_cmd_check_cache_device:
 		return check_cache_device(command_args_values.cache_device);
-	case script_cmd_upgrade:
-		return upgrade_start();
 	case script_cmd_add_core:
 		return add_core(
 			command_args_values.cache_id,

casadm/extended_err_msg.c

@@ -197,10 +197,6 @@ struct {
 		"Could not create exported object because file in /dev "
 		"directory exists"
 	},
-	{
-		KCAS_ERR_IN_UPGRADE,
-		"Operation not allowed. CAS is in upgrade state"
-	},
 	{
 		KCAS_ERR_UNALIGNED,
 		"Cache device logical sector size is greater than core device "
@@ -208,9 +204,6 @@ struct {
 		"on current cache device \nor try other device with the same "
 		"logical sector size as core device."
 	},
-	{
-		KCAS_ERR_NO_STORED_CONF,
-		"Internal kernel module error"	},
 	{
 		KCAS_ERR_ROLLBACK,
 		"Cannot restore previous configuration"

casadm/upgrade.c

@@ -1,40 +0,0 @@
-/*
-* Copyright(c) 2012-2021 Intel Corporation
-* SPDX-License-Identifier: BSD-3-Clause-Clear
-*/
-#include <stdlib.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/ioctl.h>
-#include "cas_lib.h"
-#include "cas_lib_utils.h"
-#include <cas_ioctl_codes.h>
-
-extern cas_printf_t cas_printf;
-
-int upgrade_start()
-{
-	int fd;
-	struct kcas_upgrade cmd_info;
-
-	if ((fd = open_ctrl_device()) == -1) {
-		return -1;
-	}
-
-	if (run_ioctl_interruptible_retry(fd, KCAS_IOCTL_UPGRADE, &cmd_info,
-				    "Starting upgrade", 0, OCF_CORE_ID_INVALID) < 0) {
-		close(fd);
-		if (OCF_ERR_FLUSHING_INTERRUPTED == cmd_info.ext_err_code) {
-			return INTERRUPTED;
-		} else {
-			cas_printf(LOG_ERR, "Error starting upgrade\n");
-			print_err(cmd_info.ext_err_code);
-			return FAILURE;
-		}
-	}
-
-	close(fd);
-	return SUCCESS;
-}

casadm/upgrade.h

@@ -1,11 +0,0 @@
-/*
-* Copyright(c) 2012-2021 Intel Corporation
-* SPDX-License-Identifier: BSD-3-Clause-Clear
-*/
-
-#ifndef _UPGRADE_H
-#define _UPGRADE_H
-
-int upgrade_start();
-
-#endif