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rcu: fix build bug in RCU_FAST_NO_HZ builds 

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2010-05-08 19:58:22 -07:00
parent 77e38ed347
commit d822ed1094
1 changed files with 2 additions and 2 deletions
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4
kernel/rcutree_plugin.h
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@ -1063,8 +1063,8 @@ int rcu_needs_cpu(int cpu)
for_each_online_cpu(thatcpu) { for_each_online_cpu(thatcpu) {
if (thatcpu == cpu) if (thatcpu == cpu)
continue; continue;
snap = per_cpu(rcu_dynticks, thatcpu)->dynticks; snap = per_cpu(rcu_dynticks, thatcpu).dynticks;
snap_nmi = per_cpu(rcu_dynticks, thatcpu)->dynticks_nmi; snap_nmi = per_cpu(rcu_dynticks, thatcpu).dynticks_nmi;
smp_mb(); /* Order sampling of snap with end of grace period. */ smp_mb(); /* Order sampling of snap with end of grace period. */
if (((snap & 0x1) != 0) || ((snap_nmi & 0x1) != 0)) { if (((snap & 0x1) != 0) || ((snap_nmi & 0x1) != 0)) {
per_cpu(rcu_dyntick_drain, cpu) = 0; per_cpu(rcu_dyntick_drain, cpu) = 0;