diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2009-11-17 16:46:45 +0100 |
---|---|---|
committer | Thomas Gleixner <tglx@linutronix.de> | 2009-12-14 23:55:33 +0100 |
commit | 239007b8440abff689632f50cdf0f2b9e895b534 (patch) | |
tree | 569cab843af4a999d6d868ec9a824530d2bfa733 /arch/x86/kernel/irq.c | |
parent | 9f5a5621e78cf48d86682a71ceb3fcdbde38b222 (diff) | |
download | linux-239007b8440abff689632f50cdf0f2b9e895b534.tar.gz linux-239007b8440abff689632f50cdf0f2b9e895b534.tar.bz2 linux-239007b8440abff689632f50cdf0f2b9e895b534.zip |
genirq: Convert irq_desc.lock to raw_spinlock
Convert locks which cannot be sleeping locks in preempt-rt to
raw_spinlocks.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/irq.c')
-rw-r--r-- | arch/x86/kernel/irq.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 664bcb7384ac..91fd0c70a18a 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -149,7 +149,7 @@ int show_interrupts(struct seq_file *p, void *v) if (!desc) return 0; - spin_lock_irqsave(&desc->lock, flags); + raw_spin_lock_irqsave(&desc->lock, flags); for_each_online_cpu(j) any_count |= kstat_irqs_cpu(i, j); action = desc->action; @@ -170,7 +170,7 @@ int show_interrupts(struct seq_file *p, void *v) seq_putc(p, '\n'); out: - spin_unlock_irqrestore(&desc->lock, flags); + raw_spin_unlock_irqrestore(&desc->lock, flags); return 0; } @@ -294,12 +294,12 @@ void fixup_irqs(void) continue; /* interrupt's are disabled at this point */ - spin_lock(&desc->lock); + raw_spin_lock(&desc->lock); affinity = desc->affinity; if (!irq_has_action(irq) || cpumask_equal(affinity, cpu_online_mask)) { - spin_unlock(&desc->lock); + raw_spin_unlock(&desc->lock); continue; } @@ -326,7 +326,7 @@ void fixup_irqs(void) if (!(desc->status & IRQ_MOVE_PCNTXT) && desc->chip->unmask) desc->chip->unmask(irq); - spin_unlock(&desc->lock); + raw_spin_unlock(&desc->lock); if (break_affinity && set_affinity) printk("Broke affinity for irq %i\n", irq); @@ -356,10 +356,10 @@ void fixup_irqs(void) irq = __get_cpu_var(vector_irq)[vector]; desc = irq_to_desc(irq); - spin_lock(&desc->lock); + raw_spin_lock(&desc->lock); if (desc->chip->retrigger) desc->chip->retrigger(irq); - spin_unlock(&desc->lock); + raw_spin_unlock(&desc->lock); } } } |