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authorKyle McMartin <kyle@parisc-linux.org>2007-02-17 00:18:23 -0500
committerKyle McMartin <kyle@parisc-linux.org>2007-02-17 00:18:23 -0500
commite7b3ca08549caccf5d6e1cf066780bf4f0ae77a7 (patch)
tree7e5745bea06675cfce60d6813ee3b4d5e19cbb56 /arch/parisc/kernel/smp.c
parent62d0cfcb27cf755cebdc93ca95dabc83608007cd (diff)
parentcb6efb39163bfb6bb6475fa7c8a5e08e44dbf14a (diff)
Merge branch 'parisc' from /home/kyle/repos/parisc-2.6.git
Conflicts: arch/parisc/hpux/sys_hpux.c arch/parisc/mm/ioremap.c
Diffstat (limited to 'arch/parisc/kernel/smp.c')
-rw-r--r--arch/parisc/kernel/smp.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 12cc019307ad..3b67d115fb0a 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);
}