rcu: Fix outdated rcu_scheduler_active comment
The comment header for rcu_scheduler_active states that it is used
to optimize synchronize_sched() at early boot. This is incorrect.
The synchronize_sched() function instead checks the number of online
CPUs. This commit therefore replaces the comment's synchronize_sched()
with synchronize_rcu(), which really does use rcu_scheduler_active for
this purpose.
Reported-by: Lihao Liang <lihao.liang@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
1 file changed