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-rw-r--r--kernel/rcuclassic.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/rcuclassic.c b/kernel/rcuclassic.c
index 5de126630b10..fb1f1cc45142 100644
--- a/kernel/rcuclassic.c
+++ b/kernel/rcuclassic.c
@@ -700,7 +700,9 @@ void rcu_check_callbacks(int cpu, int user)
static void rcu_init_percpu_data(int cpu, struct rcu_ctrlblk *rcp,
struct rcu_data *rdp)
{
- spin_lock(&rcp->lock);
+ long flags;
+
+ spin_lock_irqsave(&rcp->lock, flags);
memset(rdp, 0, sizeof(*rdp));
rdp->nxttail[0] = rdp->nxttail[1] = rdp->nxttail[2] = &rdp->nxtlist;
rdp->donetail = &rdp->donelist;
@@ -708,7 +710,7 @@ static void rcu_init_percpu_data(int cpu, struct rcu_ctrlblk *rcp,
rdp->qs_pending = 0;
rdp->cpu = cpu;
rdp->blimit = blimit;
- spin_unlock(&rcp->lock);
+ spin_unlock_irqrestore(&rcp->lock, flags);
}
static void __cpuinit rcu_online_cpu(int cpu)
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