Register newly added purge thread to performance schema tracking.

rb://289, approved by Marko

storage/innobase/handler/ha_innodb.cc

@@ -312,7 +312,8 @@ static PSI_thread_info	all_innodb_threads[] = {
 	{&srv_lock_timeout_thread_key, "srv_lock_timeout_thread", 0},
 	{&srv_error_monitor_thread_key, "srv_error_monitor_thread", 0},
 	{&srv_monitor_thread_key, "srv_monitor_thread", 0},
-	{&srv_master_thread_key, "srv_master_thread", 0}
+	{&srv_master_thread_key, "srv_master_thread", 0},
+	{&srv_purge_thread_key, "srv_purge_thread", 0}
 };
 # endif /* UNIV_PFS_THREAD */
 

storage/innobase/include/srv0srv.h

@@ -328,6 +328,7 @@ extern mysql_pfs_key_t	srv_lock_timeout_thread_key;
 extern mysql_pfs_key_t	srv_error_monitor_thread_key;
 extern mysql_pfs_key_t	srv_monitor_thread_key;
 extern mysql_pfs_key_t	srv_master_thread_key;
+extern mysql_pfs_key_t	srv_purge_thread_key;
 
 /* This macro register the current thread and its key with performance
 schema */

storage/innobase/srv/srv0srv.c

@@ -2965,6 +2965,10 @@ srv_purge_thread(
 
 	ut_a(srv_n_purge_threads == 1);
 
+#ifdef UNIV_PFS_THREAD
+	pfs_register_thread(srv_purge_thread_key);
+#endif /* UNIV_PFS_THREAD */
+
 #ifdef UNIV_DEBUG_THREAD_CREATION
 	fprintf(stderr, "InnoDB: Purge thread running, id %lu\n",
 		os_thread_pf(os_thread_get_curr_id()));

storage/innobase/srv/srv0start.c

@@ -149,6 +149,7 @@ UNIV_INTERN mysql_pfs_key_t	srv_lock_timeout_thread_key;
 UNIV_INTERN mysql_pfs_key_t	srv_error_monitor_thread_key;
 UNIV_INTERN mysql_pfs_key_t	srv_monitor_thread_key;
 UNIV_INTERN mysql_pfs_key_t	srv_master_thread_key;
+UNIV_INTERN mysql_pfs_key_t	srv_purge_thread_key;
 #endif /* UNIV_PFS_THREAD */
 
 #ifdef UNIV_PFS_MUTEX