MDEV-19298 Assertion `space->id != 0xFFFFFFFEU || space ==...

MDEV-19298 Assertion `space->id != 0xFFFFFFFEU || space == fil_system.temp_space' failed in Check::validate upon crash upgrade from 10.2.22

This issue is pretty much the same as MDEV-20213.
The fix is similar to:
3c238ac5
52c4abbf

Check::validate(): fix a debug assertion

SysTablespace::open_or_create(): protect assigning to a shared
variable with a mutex

storage/innobase/fil/fil0fil.cc

@@ -4641,11 +4641,20 @@ struct	Check {
 		Check	check;
 		ut_list_validate(space->chain, check);
 		ut_a(space->size == check.size);
-		ut_ad(space->id != TRX_SYS_SPACE
-		      || space == fil_system.sys_space
-		      || fil_system.sys_space == NULL);
-		ut_ad(space->id != SRV_TMP_SPACE_ID
-		      || space == fil_system.temp_space);
+
+		switch (space->id) {
+		case TRX_SYS_SPACE:
+			ut_ad(fil_system.sys_space == NULL
+			      || fil_system.sys_space == space);
+			break;
+		case SRV_TMP_SPACE_ID:
+			ut_ad(fil_system.temp_space == NULL
+			      || fil_system.temp_space == space);
+			break;
+		default:
+			break;
+		}
+
 		return(check.n_open);
 	}
 };

storage/innobase/fsp/fsp0sysspace.cc

@@ -904,9 +904,13 @@ SysTablespace::open_or_create(
 		} else if (is_temp) {
 			ut_ad(!fil_system.temp_space);
 			ut_ad(space_id() == SRV_TMP_SPACE_ID);
-			space = fil_system.temp_space = fil_space_create(
+			space = fil_space_create(
 				name(), SRV_TMP_SPACE_ID, flags(),
 				FIL_TYPE_TEMPORARY, NULL);
+
+			mutex_enter(&fil_system.mutex);
+			fil_system.temp_space = space;
+			mutex_exit(&fil_system.mutex);
 			if (!space) {
 				return DB_ERROR;
 			}