tree cbecef5a7f6313614c0b8617411a764ab24c91ab
parent 1de6e56ddc043437d335ee0455a1b34b73510c91
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1443555280 -0700
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1449260811 -0800

rcu: Move smp_mb() from rcu_seq_snap() to rcu_exp_gp_seq_snap()

The memory barrier in rcu_seq_snap() is needed only for grace periods,
so this commit moves it to the grace-period-oriented wrapper
rcu_exp_gp_seq_snap().

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>