fuzzer-changed-PS-code.patch

diff --git a/sql/sys_vars.cc b/sql/sys_vars.cc
index a998560..a63dc70 100644
--- a/sql/sys_vars.cc
+++ b/sql/sys_vars.cc
@@ -1504,7 +1504,7 @@ static Sys_var_ulong Sys_connect_timeout(
 
 static Sys_var_charptr Sys_datadir(
        "datadir", "Path to the database root directory",
-       READ_ONLY GLOBAL_VAR(mysql_real_data_home_ptr),
+       GLOBAL_VAR(mysql_real_data_home_ptr),
        CMD_LINE(REQUIRED_ARG, 'h'), IN_FS_CHARSET, DEFAULT(mysql_real_data_home));
 
 #ifndef DBUG_OFF
diff --git a/storage/innobase/buf/buf0lru.cc b/storage/innobase/buf/buf0lru.cc
index ef57231..715cb59 100644
--- a/storage/innobase/buf/buf0lru.cc
+++ b/storage/innobase/buf/buf0lru.cc
@@ -1510,14 +1510,14 @@ loop:
 
 		/* Backoff to minimize the free list mutex contention while the
 		free list is empty */
-		ulint	priority = srv_current_thread_priority;
+//		ulint	priority = srv_current_thread_priority;
 
 		if (n_iterations < 3) {
 
 			os_thread_yield();
-			if (!priority) {
+//			if (!priority) {
 				os_thread_yield();
-			}
+//			}
 		} else {
 
 			ulint	i, b;
@@ -1535,7 +1535,8 @@ loop:
 			if (b > MAX_FREE_LIST_BACKOFF_SLEEP) {
 				b = MAX_FREE_LIST_BACKOFF_SLEEP;
 			}
-			os_thread_sleep(b / (priority
+//			os_thread_sleep(b / (priority
+			os_thread_sleep(b / (0
 				? FREE_LIST_BACKOFF_HIGH_PRIO_DIVIDER
 				: FREE_LIST_BACKOFF_LOW_PRIO_DIVIDER));
 		}
diff --git a/storage/innobase/include/srv0srv.h b/storage/innobase/include/srv0srv.h
index 7da1300..07022a3 100644
--- a/storage/innobase/include/srv0srv.h
+++ b/storage/innobase/include/srv0srv.h
@@ -547,7 +547,7 @@ extern ulint	srv_sched_priority_master;
 
 /* The relative priority of the current thread.  If 0, low priority; if 1, high
 priority.  */
-extern UNIV_THREAD_LOCAL ulint srv_current_thread_priority;
+//extern UNIV_THREAD_LOCAL ulint srv_current_thread_priority;
 
 /* The relative priority of the purge coordinator and worker threads.  */
 extern my_bool srv_purge_thread_priority;
diff --git a/storage/innobase/srv/srv0srv.cc b/storage/innobase/srv/srv0srv.cc
index 5b6d709..bbb261d 100644
--- a/storage/innobase/srv/srv0srv.cc
+++ b/storage/innobase/srv/srv0srv.cc
@@ -383,7 +383,7 @@ ulint	srv_sched_priority_master	= 19;
 
 /* The relative priority of the current thread.  If 0, low priority; if 1, high
 priority.  */
-UNIV_THREAD_LOCAL ulint srv_current_thread_priority = 0;
+//UNIV_THREAD_LOCAL ulint srv_current_thread_priority = 0;
 
 /* The relative priority of the purge coordinator and worker threads.  */
 my_bool	srv_purge_thread_priority	= FALSE;
@@ -2742,7 +2742,7 @@ loop:
 
 		MONITOR_INC(MONITOR_MASTER_THREAD_SLEEP);
 
-		srv_current_thread_priority = srv_master_thread_priority;
+		//srv_current_thread_priority = srv_master_thread_priority;
 
 		if (srv_check_activity(old_activity_count,
 				       old_ibuf_merge_activity_count)) {
@@ -2899,7 +2899,7 @@ DECLARE_THREAD(srv_worker_thread)(
 
 		os_event_wait(slot->event);
 
-		srv_current_thread_priority = srv_purge_thread_priority;
+		//srv_current_thread_priority = srv_purge_thread_priority;
 
 		if (srv_task_execute()) {
 
@@ -2969,7 +2969,7 @@ srv_do_purge(
 	}
 
 	do {
-		srv_current_thread_priority = srv_purge_thread_priority;
+		//srv_current_thread_priority = srv_purge_thread_priority;
 
 		if (trx_sys->rseg_history_len > rseg_history_len
 		    || (srv_max_purge_lag > 0
@@ -3187,7 +3187,7 @@ DECLARE_THREAD(srv_purge_coordinator_thread)(
 
 		n_total_purged = 0;
 
-		srv_current_thread_priority = srv_purge_thread_priority;
+		//srv_current_thread_priority = srv_purge_thread_priority;
 
 		rseg_history_len = srv_do_purge(
 			srv_n_purge_threads, &n_total_purged);