MDEV-24685 - remove IO thread states output from SHOW ENGINE INNODB STATUS

There are no IO threads anymore.

storage/innobase/include/srv0srv.h

@@ -480,11 +480,6 @@ extern ulint	srv_dml_needed_delay;
 
 #define SRV_MAX_N_IO_THREADS	130
 
-/* Array of English strings describing the current state of an
-i/o handler thread */
-extern const char* srv_io_thread_op_info[];
-extern const char* srv_io_thread_function[];
-
 /** innodb_purge_threads; the number of purge tasks to use */
 extern uint srv_n_purge_threads;
 
@@ -616,19 +611,6 @@ srv_boot(void);
 Frees the data structures created in srv_init(). */
 void
 srv_free(void);
-/*==========*/
-/*********************************************************************//**
-Sets the info describing an i/o thread current state. */
-void
-srv_set_io_thread_op_info(
-/*======================*/
-	ulint		i,	/*!< in: the 'segment' of the i/o thread */
-	const char*	str);	/*!< in: constant char string describing the
-				state */
-/*********************************************************************//**
-Resets the info describing an i/o thread current state. */
-void
-srv_reset_io_thread_op_info();
 
 /** Wake up the purge if there is work to do. */
 void

storage/innobase/os/os0file.cc

@@ -4166,15 +4166,6 @@ os_aio_print(FILE*	file)
 	time_t		current_time;
 	double		time_elapsed;
 
-	for (uint i = 0; i < srv_n_file_io_threads; ++i) {
-		fprintf(file, "I/O thread %u state: %s (%s)",
-			i,
-			srv_io_thread_op_info[i],
-			srv_io_thread_function[i]);
-
-		fprintf(file, "\n");
-	}
-
 	fputs("Pending normal aio reads:", file);
 
 

storage/innobase/srv/srv0srv.cc

@@ -384,12 +384,6 @@ my_bool innodb_encrypt_temporary_tables;
 
 my_bool srv_immediate_scrub_data_uncompressed;
 
-/* Array of English strings describing the current state of an
-i/o handler thread */
-
-const char* srv_io_thread_op_info[SRV_MAX_N_IO_THREADS];
-const char* srv_io_thread_function[SRV_MAX_N_IO_THREADS];
-
 static time_t	srv_last_monitor_time;
 
 static mysql_mutex_t srv_innodb_monitor_mutex;
@@ -610,33 +604,6 @@ srv_print_master_thread_info(
 		srv_log_writes_and_flush);
 }
 
-/*********************************************************************//**
-Sets the info describing an i/o thread current state. */
-void
-srv_set_io_thread_op_info(
-/*======================*/
-	ulint		i,	/*!< in: the 'segment' of the i/o thread */
-	const char*	str)	/*!< in: constant char string describing the
-				state */
-{
-	ut_a(i < SRV_MAX_N_IO_THREADS);
-
-	srv_io_thread_op_info[i] = str;
-}
-
-/*********************************************************************//**
-Resets the info describing an i/o thread current state. */
-void
-srv_reset_io_thread_op_info()
-/*=========================*/
-{
-	for (ulint i = 0; i < UT_ARR_SIZE(srv_io_thread_op_info); ++i) {
-		srv_io_thread_op_info[i] = "not started yet";
-	}
-}
-
-
-
 static void thread_pool_thread_init()
 {
 	my_thread_init();