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>

kernel/irq/autoprobe.c

@@ -45,7 +45,7 @@ unsigned long probe_irq_on(void)
 	 * flush such a longstanding irq before considering it as spurious.
 	 */
 	for_each_irq_desc_reverse(i, desc) {
-		spin_lock_irq(&desc->lock);
+		raw_spin_lock_irq(&desc->lock);
 		if (!desc->action && !(desc->status & IRQ_NOPROBE)) {
 			/*
 			 * An old-style architecture might still have
@@ -61,7 +61,7 @@ unsigned long probe_irq_on(void)
 				desc->chip->set_type(i, IRQ_TYPE_PROBE);
 			desc->chip->startup(i);
 		}
-		spin_unlock_irq(&desc->lock);
+		raw_spin_unlock_irq(&desc->lock);
 	}
 
 	/* Wait for longstanding interrupts to trigger. */
@@ -73,13 +73,13 @@ unsigned long probe_irq_on(void)
 	 * happened in the previous stage, it may have masked itself)
 	 */
 	for_each_irq_desc_reverse(i, desc) {
-		spin_lock_irq(&desc->lock);
+		raw_spin_lock_irq(&desc->lock);
 		if (!desc->action && !(desc->status & IRQ_NOPROBE)) {
 			desc->status |= IRQ_AUTODETECT | IRQ_WAITING;
 			if (desc->chip->startup(i))
 				desc->status |= IRQ_PENDING;
 		}
-		spin_unlock_irq(&desc->lock);
+		raw_spin_unlock_irq(&desc->lock);
 	}
 
 	/*
@@ -91,7 +91,7 @@ unsigned long probe_irq_on(void)
 	 * Now filter out any obviously spurious interrupts
 	 */
 	for_each_irq_desc(i, desc) {
-		spin_lock_irq(&desc->lock);
+		raw_spin_lock_irq(&desc->lock);
 		status = desc->status;
 
 		if (status & IRQ_AUTODETECT) {
@@ -103,7 +103,7 @@ unsigned long probe_irq_on(void)
 				if (i < 32)
 					mask |= 1 << i;
 		}
-		spin_unlock_irq(&desc->lock);
+		raw_spin_unlock_irq(&desc->lock);
 	}
 
 	return mask;
@@ -129,7 +129,7 @@ unsigned int probe_irq_mask(unsigned long val)
 	int i;
 
 	for_each_irq_desc(i, desc) {
-		spin_lock_irq(&desc->lock);
+		raw_spin_lock_irq(&desc->lock);
 		status = desc->status;
 
 		if (status & IRQ_AUTODETECT) {
@@ -139,7 +139,7 @@ unsigned int probe_irq_mask(unsigned long val)
 			desc->status = status & ~IRQ_AUTODETECT;
 			desc->chip->shutdown(i);
 		}
-		spin_unlock_irq(&desc->lock);
+		raw_spin_unlock_irq(&desc->lock);
 	}
 	mutex_unlock(&probing_active);
 
@@ -171,7 +171,7 @@ int probe_irq_off(unsigned long val)
 	unsigned int status;
 
 	for_each_irq_desc(i, desc) {
-		spin_lock_irq(&desc->lock);
+		raw_spin_lock_irq(&desc->lock);
 		status = desc->status;
 
 		if (status & IRQ_AUTODETECT) {
@@ -183,7 +183,7 @@ int probe_irq_off(unsigned long val)
 			desc->status = status & ~IRQ_AUTODETECT;
 			desc->chip->shutdown(i);
 		}
-		spin_unlock_irq(&desc->lock);
+		raw_spin_unlock_irq(&desc->lock);
 	}
 	mutex_unlock(&probing_active);
 

kernel/irq/chip.c

@@ -34,7 +34,7 @@ void dynamic_irq_init(unsigned int irq)
 	}
 
 	/* Ensure we don't have left over values from a previous use of this irq */
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	desc->status = IRQ_DISABLED;
 	desc->chip = &no_irq_chip;
 	desc->handle_irq = handle_bad_irq;
@@ -51,7 +51,7 @@ void dynamic_irq_init(unsigned int irq)
 	cpumask_clear(desc->pending_mask);
 #endif
 #endif
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 }
 
 /**
@@ -68,9 +68,9 @@ void dynamic_irq_cleanup(unsigned int irq)
 		return;
 	}
 
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	if (desc->action) {
-		spin_unlock_irqrestore(&desc->lock, flags);
+		raw_spin_unlock_irqrestore(&desc->lock, flags);
 		WARN(1, KERN_ERR "Destroying IRQ%d without calling free_irq\n",
 			irq);
 		return;
@@ -82,7 +82,7 @@ void dynamic_irq_cleanup(unsigned int irq)
 	desc->chip = &no_irq_chip;
 	desc->name = NULL;
 	clear_kstat_irqs(desc);
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 }
 
 
@@ -104,10 +104,10 @@ int set_irq_chip(unsigned int irq, struct irq_chip *chip)
 	if (!chip)
 		chip = &no_irq_chip;
 
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	irq_chip_set_defaults(chip);
 	desc->chip = chip;
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 
 	return 0;
 }
@@ -133,9 +133,9 @@ int set_irq_type(unsigned int irq, unsigned int type)
 	if (type == IRQ_TYPE_NONE)
 		return 0;
 
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	ret = __irq_set_trigger(desc, irq, type);
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 	return ret;
 }
 EXPORT_SYMBOL(set_irq_type);
@@ -158,9 +158,9 @@ int set_irq_data(unsigned int irq, void *data)
 		return -EINVAL;
 	}
 
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	desc->handler_data = data;
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 	return 0;
 }
 EXPORT_SYMBOL(set_irq_data);
@@ -183,11 +183,11 @@ int set_irq_msi(unsigned int irq, struct msi_desc *entry)
 		return -EINVAL;
 	}
 
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	desc->msi_desc = entry;
 	if (entry)
 		entry->irq = irq;
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 	return 0;
 }
 
@@ -214,9 +214,9 @@ int set_irq_chip_data(unsigned int irq, void *data)
 		return -EINVAL;
 	}
 
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	desc->chip_data = data;
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 
 	return 0;
 }
@@ -241,12 +241,12 @@ void set_irq_nested_thread(unsigned int irq, int nest)
 	if (!desc)
 		return;
 
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	if (nest)
 		desc->status |= IRQ_NESTED_THREAD;
 	else
 		desc->status &= ~IRQ_NESTED_THREAD;
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 }
 EXPORT_SYMBOL_GPL(set_irq_nested_thread);
 
@@ -343,7 +343,7 @@ void handle_nested_irq(unsigned int irq)
 
 	might_sleep();
 
-	spin_lock_irq(&desc->lock);
+	raw_spin_lock_irq(&desc->lock);
 
 	kstat_incr_irqs_this_cpu(irq, desc);
 
@@ -352,17 +352,17 @@ void handle_nested_irq(unsigned int irq)
 		goto out_unlock;
 
 	desc->status |= IRQ_INPROGRESS;
-	spin_unlock_irq(&desc->lock);
+	raw_spin_unlock_irq(&desc->lock);
 
 	action_ret = action->thread_fn(action->irq, action->dev_id);
 	if (!noirqdebug)
 		note_interrupt(irq, desc, action_ret);
 
-	spin_lock_irq(&desc->lock);
+	raw_spin_lock_irq(&desc->lock);
 	desc->status &= ~IRQ_INPROGRESS;
 
 out_unlock:
-	spin_unlock_irq(&desc->lock);
+	raw_spin_unlock_irq(&desc->lock);
 }
 EXPORT_SYMBOL_GPL(handle_nested_irq);
 
@@ -384,7 +384,7 @@ handle_simple_irq(unsigned int irq, struct irq_desc *desc)
 	struct irqaction *action;
 	irqreturn_t action_ret;
 
-	spin_lock(&desc->lock);
+	raw_spin_lock(&desc->lock);
 
 	if (unlikely(desc->status & IRQ_INPROGRESS))
 		goto out_unlock;
@@ -396,16 +396,16 @@ handle_simple_irq(unsigned int irq, struct irq_desc *desc)
 		goto out_unlock;
 
 	desc->status |= IRQ_INPROGRESS;
-	spin_unlock(&desc->lock);
+	raw_spin_unlock(&desc->lock);
 
 	action_ret = handle_IRQ_event(irq, action);
 	if (!noirqdebug)
 		note_interrupt(irq, desc, action_ret);
 
-	spin_lock(&desc->lock);
+	raw_spin_lock(&desc->lock);
 	desc->status &= ~IRQ_INPROGRESS;
 out_unlock:
-	spin_unlock(&desc->lock);
+	raw_spin_unlock(&desc->lock);
 }
 
 /**
@@ -424,7 +424,7 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
 	struct irqaction *action;
 	irqreturn_t action_ret;
 
-	spin_lock(&desc->lock);
+	raw_spin_lock(&desc->lock);
 	mask_ack_irq(desc, irq);
 
 	if (unlikely(desc->status & IRQ_INPROGRESS))
@@ -441,13 +441,13 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
 		goto out_unlock;
 
 	desc->status |= IRQ_INPROGRESS;
-	spin_unlock(&desc->lock);
+	raw_spin_unlock(&desc->lock);
 
 	action_ret = handle_IRQ_event(irq, action);
 	if (!noirqdebug)
 		note_interrupt(irq, desc, action_ret);
 
-	spin_lock(&desc->lock);
+	raw_spin_lock(&desc->lock);
 	desc->status &= ~IRQ_INPROGRESS;
 
 	if (unlikely(desc->status & IRQ_ONESHOT))
@@ -455,7 +455,7 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
 	else if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask)
 		desc->chip->unmask(irq);
 out_unlock:
-	spin_unlock(&desc->lock);
+	raw_spin_unlock(&desc->lock);
 }
 EXPORT_SYMBOL_GPL(handle_level_irq);
 
@@ -475,7 +475,7 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc)
 	struct irqaction *action;
 	irqreturn_t action_ret;
 
-	spin_lock(&desc->lock);
+	raw_spin_lock(&desc->lock);
 
 	if (unlikely(desc->status & IRQ_INPROGRESS))
 		goto out;
@@ -497,18 +497,18 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc)
 
 	desc->status |= IRQ_INPROGRESS;
 	desc->status &= ~IRQ_PENDING;
-	spin_unlock(&desc->lock);
+	raw_spin_unlock(&desc->lock);
 
 	action_ret = handle_IRQ_event(irq, action);
 	if (!noirqdebug)
 		note_interrupt(irq, desc, action_ret);
 
-	spin_lock(&desc->lock);
+	raw_spin_lock(&desc->lock);
 	desc->status &= ~IRQ_INPROGRESS;
 out:
 	desc->chip->eoi(irq);
 
-	spin_unlock(&desc->lock);
+	raw_spin_unlock(&desc->lock);
 }
 
 /**
@@ -530,7 +530,7 @@ out:
 void
 handle_edge_irq(unsigned int irq, struct irq_desc *desc)
 {
-	spin_lock(&desc->lock);
+	raw_spin_lock(&desc->lock);
 
 	desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
 
@@ -576,17 +576,17 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
 		}
 
 		desc->status &= ~IRQ_PENDING;
-		spin_unlock(&desc->lock);
+		raw_spin_unlock(&desc->lock);
 		action_ret = handle_IRQ_event(irq, action);
 		if (!noirqdebug)
 			note_interrupt(irq, desc, action_ret);
-		spin_lock(&desc->lock);
+		raw_spin_lock(&desc->lock);
 
 	} while ((desc->status & (IRQ_PENDING | IRQ_DISABLED)) == IRQ_PENDING);
 
 	desc->status &= ~IRQ_INPROGRESS;
 out_unlock:
-	spin_unlock(&desc->lock);
+	raw_spin_unlock(&desc->lock);
 }
 
 /**
@@ -643,7 +643,7 @@ __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained,
 	}
 
 	chip_bus_lock(irq, desc);
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 
 	/* Uninstall? */
 	if (handle == handle_bad_irq) {
@@ -661,7 +661,7 @@ __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained,
 		desc->depth = 0;
 		desc->chip->startup(irq);
 	}
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 	chip_bus_sync_unlock(irq, desc);
 }
 EXPORT_SYMBOL_GPL(__set_irq_handler);
@@ -692,9 +692,9 @@ void __init set_irq_noprobe(unsigned int irq)
 		return;
 	}
 
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	desc->status |= IRQ_NOPROBE;
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 }
 
 void __init set_irq_probe(unsigned int irq)
@@ -707,7 +707,7 @@ void __init set_irq_probe(unsigned int irq)
 		return;
 	}
 
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	desc->status &= ~IRQ_NOPROBE;
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 }

kernel/irq/handle.c

@@ -80,7 +80,7 @@ static struct irq_desc irq_desc_init = {
 	.chip	    = &no_irq_chip,
 	.handle_irq = handle_bad_irq,
 	.depth      = 1,
-	.lock       = __SPIN_LOCK_UNLOCKED(irq_desc_init.lock),
+	.lock       = __RAW_SPIN_LOCK_UNLOCKED(irq_desc_init.lock),
 };
 
 void __ref init_kstat_irqs(struct irq_desc *desc, int node, int nr)
@@ -108,7 +108,7 @@ static void init_one_irq_desc(int irq, struct irq_desc *desc, int node)
 {
 	memcpy(desc, &irq_desc_init, sizeof(struct irq_desc));
 
-	spin_lock_init(&desc->lock);
+	raw_spin_lock_init(&desc->lock);
 	desc->irq = irq;
 #ifdef CONFIG_SMP
 	desc->node = node;
@@ -130,7 +130,7 @@ static void init_one_irq_desc(int irq, struct irq_desc *desc, int node)
 /*
  * Protect the sparse_irqs:
  */
-DEFINE_SPINLOCK(sparse_irq_lock);
+DEFINE_RAW_SPINLOCK(sparse_irq_lock);
 
 struct irq_desc **irq_desc_ptrs __read_mostly;
 
@@ -141,7 +141,7 @@ static struct irq_desc irq_desc_legacy[NR_IRQS_LEGACY] __cacheline_aligned_in_sm
 		.chip	    = &no_irq_chip,
 		.handle_irq = handle_bad_irq,
 		.depth	    = 1,
-		.lock	    = __SPIN_LOCK_UNLOCKED(irq_desc_init.lock),
+		.lock	    = __RAW_SPIN_LOCK_UNLOCKED(irq_desc_init.lock),
 	}
 };
 
@@ -212,7 +212,7 @@ struct irq_desc * __ref irq_to_desc_alloc_node(unsigned int irq, int node)
 	if (desc)
 		return desc;
 
-	spin_lock_irqsave(&sparse_irq_lock, flags);
+	raw_spin_lock_irqsave(&sparse_irq_lock, flags);
 
 	/* We have to check it to avoid races with another CPU */
 	desc = irq_desc_ptrs[irq];
@@ -234,7 +234,7 @@ struct irq_desc * __ref irq_to_desc_alloc_node(unsigned int irq, int node)
 	irq_desc_ptrs[irq] = desc;
 
 out_unlock:
-	spin_unlock_irqrestore(&sparse_irq_lock, flags);
+	raw_spin_unlock_irqrestore(&sparse_irq_lock, flags);
 
 	return desc;
 }
@@ -247,7 +247,7 @@ struct irq_desc irq_desc[NR_IRQS] __cacheline_aligned_in_smp = {
 		.chip = &no_irq_chip,
 		.handle_irq = handle_bad_irq,
 		.depth = 1,
-		.lock = __SPIN_LOCK_UNLOCKED(irq_desc->lock),
+		.lock = __RAW_SPIN_LOCK_UNLOCKED(irq_desc->lock),
 	}
 };
 
@@ -473,7 +473,7 @@ unsigned int __do_IRQ(unsigned int irq)
 		return 1;
 	}
 
-	spin_lock(&desc->lock);
+	raw_spin_lock(&desc->lock);
 	if (desc->chip->ack)
 		desc->chip->ack(irq);
 	/*
@@ -517,13 +517,13 @@ unsigned int __do_IRQ(unsigned int irq)
 	for (;;) {
 		irqreturn_t action_ret;
 
-		spin_unlock(&desc->lock);
+		raw_spin_unlock(&desc->lock);
 
 		action_ret = handle_IRQ_event(irq, action);
 		if (!noirqdebug)
 			note_interrupt(irq, desc, action_ret);
 
-		spin_lock(&desc->lock);
+		raw_spin_lock(&desc->lock);
 		if (likely(!(desc->status & IRQ_PENDING)))
 			break;
 		desc->status &= ~IRQ_PENDING;
@@ -536,7 +536,7 @@ out:
 	 * disabled while the handler was running.
 	 */
 	desc->chip->end(irq);
-	spin_unlock(&desc->lock);
+	raw_spin_unlock(&desc->lock);
 
 	return 1;
 }

kernel/irq/internals.h

@@ -18,7 +18,7 @@ extern void __enable_irq(struct irq_desc *desc, unsigned int irq, bool resume);
 extern struct lock_class_key irq_desc_lock_class;
 extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr);
 extern void clear_kstat_irqs(struct irq_desc *desc);
-extern spinlock_t sparse_irq_lock;
+extern raw_spinlock_t sparse_irq_lock;
 
 #ifdef CONFIG_SPARSE_IRQ
 /* irq_desc_ptrs allocated at boot time */

kernel/irq/manage.c

@@ -46,9 +46,9 @@ void synchronize_irq(unsigned int irq)
 			cpu_relax();
 
 		/* Ok, that indicated we're done: double-check carefully. */
-		spin_lock_irqsave(&desc->lock, flags);
+		raw_spin_lock_irqsave(&desc->lock, flags);
 		status = desc->status;
-		spin_unlock_irqrestore(&desc->lock, flags);
+		raw_spin_unlock_irqrestore(&desc->lock, flags);
 
 		/* Oops, that failed? */
 	} while (status & IRQ_INPROGRESS);
@@ -114,7 +114,7 @@ int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask)
 	if (!desc->chip->set_affinity)
 		return -EINVAL;
 
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 
 #ifdef CONFIG_GENERIC_PENDING_IRQ
 	if (desc->status & IRQ_MOVE_PCNTXT) {
@@ -134,7 +134,7 @@ int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask)
 	}
 #endif
 	desc->status |= IRQ_AFFINITY_SET;
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 	return 0;
 }
 
@@ -181,11 +181,11 @@ int irq_select_affinity_usr(unsigned int irq)
 	unsigned long flags;
 	int ret;
 
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	ret = setup_affinity(irq, desc);
 	if (!ret)
 		irq_set_thread_affinity(desc);
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 
 	return ret;
 }
@@ -231,9 +231,9 @@ void disable_irq_nosync(unsigned int irq)
 		return;
 
 	chip_bus_lock(irq, desc);
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	__disable_irq(desc, irq, false);
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 	chip_bus_sync_unlock(irq, desc);
 }
 EXPORT_SYMBOL(disable_irq_nosync);
@@ -308,9 +308,9 @@ void enable_irq(unsigned int irq)
 		return;
 
 	chip_bus_lock(irq, desc);
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	__enable_irq(desc, irq, false);
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 	chip_bus_sync_unlock(irq, desc);
 }
 EXPORT_SYMBOL(enable_irq);
@@ -347,7 +347,7 @@ int set_irq_wake(unsigned int irq, unsigned int on)
 	/* wakeup-capable irqs can be shared between drivers that
 	 * don't need to have the same sleep mode behaviors.
 	 */
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	if (on) {
 		if (desc->wake_depth++ == 0) {
 			ret = set_irq_wake_real(irq, on);
@@ -368,7 +368,7 @@ int set_irq_wake(unsigned int irq, unsigned int on)
 		}
 	}
 
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 	return ret;
 }
 EXPORT_SYMBOL(set_irq_wake);
@@ -484,12 +484,12 @@ static int irq_wait_for_interrupt(struct irqaction *action)
 static void irq_finalize_oneshot(unsigned int irq, struct irq_desc *desc)
 {
 	chip_bus_lock(irq, desc);
-	spin_lock_irq(&desc->lock);
+	raw_spin_lock_irq(&desc->lock);
 	if (!(desc->status & IRQ_DISABLED) && (desc->status & IRQ_MASKED)) {
 		desc->status &= ~IRQ_MASKED;
 		desc->chip->unmask(irq);
 	}
-	spin_unlock_irq(&desc->lock);
+	raw_spin_unlock_irq(&desc->lock);
 	chip_bus_sync_unlock(irq, desc);
 }
 
@@ -514,9 +514,9 @@ irq_thread_check_affinity(struct irq_desc *desc, struct irqaction *action)
 		return;
 	}
 
-	spin_lock_irq(&desc->lock);
+	raw_spin_lock_irq(&desc->lock);
 	cpumask_copy(mask, desc->affinity);
-	spin_unlock_irq(&desc->lock);
+	raw_spin_unlock_irq(&desc->lock);
 
 	set_cpus_allowed_ptr(current, mask);
 	free_cpumask_var(mask);
@@ -545,7 +545,7 @@ static int irq_thread(void *data)
 
 		atomic_inc(&desc->threads_active);
 
-		spin_lock_irq(&desc->lock);
+		raw_spin_lock_irq(&desc->lock);
 		if (unlikely(desc->status & IRQ_DISABLED)) {
 			/*
 			 * CHECKME: We might need a dedicated
@@ -555,9 +555,9 @@ static int irq_thread(void *data)
 			 * retriggers the interrupt itself --- tglx
 			 */
 			desc->status |= IRQ_PENDING;
-			spin_unlock_irq(&desc->lock);
+			raw_spin_unlock_irq(&desc->lock);
 		} else {
-			spin_unlock_irq(&desc->lock);
+			raw_spin_unlock_irq(&desc->lock);
 
 			action->thread_fn(action->irq, action->dev_id);
 
@@ -679,7 +679,7 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
 	/*
 	 * The following block of code has to be executed atomically
 	 */
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	old_ptr = &desc->action;
 	old = *old_ptr;
 	if (old) {
@@ -775,7 +775,7 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
 		__enable_irq(desc, irq, false);
 	}
 
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 
 	/*
 	 * Strictly no need to wake it up, but hung_task complains
@@ -802,7 +802,7 @@ mismatch:
 	ret = -EBUSY;
 
 out_thread:
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 	if (new->thread) {
 		struct task_struct *t = new->thread;
 
@@ -844,7 +844,7 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id)
 	if (!desc)
 		return NULL;
 
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 
 	/*
 	 * There can be multiple actions per IRQ descriptor, find the right
@@ -856,7 +856,7 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id)
 
 		if (!action) {
 			WARN(1, "Trying to free already-free IRQ %d\n", irq);
-			spin_unlock_irqrestore(&desc->lock, flags);
+			raw_spin_unlock_irqrestore(&desc->lock, flags);
 
 			return NULL;
 		}
@@ -884,7 +884,7 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id)
 			desc->chip->disable(irq);
 	}
 
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 
 	unregister_handler_proc(irq, action);
 

kernel/irq/migration.c

@@ -27,7 +27,7 @@ void move_masked_irq(int irq)
 	if (!desc->chip->set_affinity)
 		return;
 
-	assert_spin_locked(&desc->lock);
+	assert_raw_spin_locked(&desc->lock);
 
 	/*
 	 * If there was a valid mask to work with, please

kernel/irq/numa_migrate.c

@@ -42,7 +42,7 @@ static bool init_copy_one_irq_desc(int irq, struct irq_desc *old_desc,
 				"for migration.\n", irq);
 		return false;
 	}
-	spin_lock_init(&desc->lock);
+	raw_spin_lock_init(&desc->lock);
 	desc->node = node;
 	lockdep_set_class(&desc->lock, &irq_desc_lock_class);
 	init_copy_kstat_irqs(old_desc, desc, node, nr_cpu_ids);
@@ -67,7 +67,7 @@ static struct irq_desc *__real_move_irq_desc(struct irq_desc *old_desc,
 
 	irq = old_desc->irq;
 
-	spin_lock_irqsave(&sparse_irq_lock, flags);
+	raw_spin_lock_irqsave(&sparse_irq_lock, flags);
 
 	/* We have to check it to avoid races with another CPU */
 	desc = irq_desc_ptrs[irq];
@@ -91,7 +91,7 @@ static struct irq_desc *__real_move_irq_desc(struct irq_desc *old_desc,
 	}
 
 	irq_desc_ptrs[irq] = desc;
-	spin_unlock_irqrestore(&sparse_irq_lock, flags);
+	raw_spin_unlock_irqrestore(&sparse_irq_lock, flags);
 
 	/* free the old one */
 	free_one_irq_desc(old_desc, desc);
@@ -100,7 +100,7 @@ static struct irq_desc *__real_move_irq_desc(struct irq_desc *old_desc,
 	return desc;
 
 out_unlock:
-	spin_unlock_irqrestore(&sparse_irq_lock, flags);
+	raw_spin_unlock_irqrestore(&sparse_irq_lock, flags);
 
 	return desc;
 }

kernel/irq/pm.c

@@ -28,9 +28,9 @@ void suspend_device_irqs(void)
 	for_each_irq_desc(irq, desc) {
 		unsigned long flags;
 
-		spin_lock_irqsave(&desc->lock, flags);
+		raw_spin_lock_irqsave(&desc->lock, flags);
 		__disable_irq(desc, irq, true);
-		spin_unlock_irqrestore(&desc->lock, flags);
+		raw_spin_unlock_irqrestore(&desc->lock, flags);
 	}
 
 	for_each_irq_desc(irq, desc)
@@ -56,9 +56,9 @@ void resume_device_irqs(void)
 		if (!(desc->status & IRQ_SUSPENDED))
 			continue;
 
-		spin_lock_irqsave(&desc->lock, flags);
+		raw_spin_lock_irqsave(&desc->lock, flags);
 		__enable_irq(desc, irq, true);
-		spin_unlock_irqrestore(&desc->lock, flags);
+		raw_spin_unlock_irqrestore(&desc->lock, flags);
 	}
 }
 EXPORT_SYMBOL_GPL(resume_device_irqs);

kernel/irq/proc.c

@@ -179,7 +179,7 @@ static int name_unique(unsigned int irq, struct irqaction *new_action)
 	unsigned long flags;
 	int ret = 1;
 
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	for (action = desc->action ; action; action = action->next) {
 		if ((action != new_action) && action->name &&
 				!strcmp(new_action->name, action->name)) {
@@ -187,7 +187,7 @@ static int name_unique(unsigned int irq, struct irqaction *new_action)
 			break;
 		}
 	}
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 	return ret;
 }
 

kernel/irq/spurious.c

@@ -28,7 +28,7 @@ static int try_one_irq(int irq, struct irq_desc *desc)
 	struct irqaction *action;
 	int ok = 0, work = 0;
 
-	spin_lock(&desc->lock);
+	raw_spin_lock(&desc->lock);
 	/* Already running on another processor */
 	if (desc->status & IRQ_INPROGRESS) {
 		/*
@@ -37,13 +37,13 @@ static int try_one_irq(int irq, struct irq_desc *desc)
 		 */
 		if (desc->action && (desc->action->flags & IRQF_SHARED))
 			desc->status |= IRQ_PENDING;
-		spin_unlock(&desc->lock);
+		raw_spin_unlock(&desc->lock);
 		return ok;
 	}
 	/* Honour the normal IRQ locking */
 	desc->status |= IRQ_INPROGRESS;
 	action = desc->action;
-	spin_unlock(&desc->lock);
+	raw_spin_unlock(&desc->lock);
 
 	while (action) {
 		/* Only shared IRQ handlers are safe to call */
@@ -56,7 +56,7 @@ static int try_one_irq(int irq, struct irq_desc *desc)
 	}
 	local_irq_disable();
 	/* Now clean up the flags */
-	spin_lock(&desc->lock);
+	raw_spin_lock(&desc->lock);
 	action = desc->action;
 
 	/*
@@ -68,9 +68,9 @@ static int try_one_irq(int irq, struct irq_desc *desc)
 		 * Perform real IRQ processing for the IRQ we deferred
 		 */
 		work = 1;
-		spin_unlock(&desc->lock);
+		raw_spin_unlock(&desc->lock);
 		handle_IRQ_event(irq, action);
-		spin_lock(&desc->lock);
+		raw_spin_lock(&desc->lock);
 		desc->status &= ~IRQ_PENDING;
 	}
 	desc->status &= ~IRQ_INPROGRESS;
@@ -80,7 +80,7 @@ static int try_one_irq(int irq, struct irq_desc *desc)
 	 */
 	if (work && desc->chip && desc->chip->end)
 		desc->chip->end(irq);
-	spin_unlock(&desc->lock);
+	raw_spin_unlock(&desc->lock);
 
 	return ok;
 }