1 files changed, 7 insertions, 4 deletions

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 4a23a97b06cd..5b6bc6e8a42f 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -76,6 +76,7 @@ cpumask_t cpu_possible_map __read_mostly = CPU_MASK_ALL;	/* Bitmap of Present CP
 EXPORT_SYMBOL(cpu_online_map);
 EXPORT_SYMBOL(cpu_possible_map);
 
+DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;
 
 struct smp_call_struct {
         void (*func) (void *info);
@@ -167,10 +168,11 @@ ipi_interrupt(int irq, void *dev_id)
         mb();   /* Order interrupt and bit testing. */
 
         for (;;) {
-                spin_lock_irqsave(&(p->lock),flags);
+                spinlock_t *lock = &per_cpu(ipi_lock, this_cpu);
+                spin_lock_irqsave(lock, flags);
                 ops = p->pending_ipi;
                 p->pending_ipi = 0;
-                spin_unlock_irqrestore(&(p->lock),flags);
+                spin_unlock_irqrestore(lock, flags);
 
                 mb(); /* Order bit clearing and data access. */
 
@@ -275,12 +277,13 @@ static inline void
 ipi_send(int cpu, enum ipi_message_type op)
 {
         struct cpuinfo_parisc *p = &cpu_data[cpu];
+        spinlock_t *lock = &per_cpu(ipi_lock, cpu);
         unsigned long flags;
 
-        spin_lock_irqsave(&(p->lock),flags);
+        spin_lock_irqsave(lock, flags);
         p->pending_ipi |= 1 << op;
         gsc_writel(IPI_IRQ - CPU_IRQ_BASE, cpu_data[cpu].hpa);
-        spin_unlock_irqrestore(&(p->lock),flags);
+        spin_unlock_irqrestore(lock, flags);
 }