--source include/have_innodb.inc
--source include/linux.inc
# enum readonly

#
# show values;
#
select @@global.innodb_linux_aio;
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
select @@session.innodb_linux_aio;
show global variables like 'innodb_linux_aio';
show session variables like 'innodb_linux_aio';
select * from information_schema.global_variables where variable_name='innodb_linux_aio';
select * from information_schema.session_variables where variable_name='innodb_linux_aio';

#
# show that it's read-only
#
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
set global innodb_linux_aio='auto';
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
set session innodb_linux_aio='aio';