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authorThomas Gleixner <tglx@linutronix.de>2009-11-17 16:46:45 +0100
committerThomas Gleixner <tglx@linutronix.de>2009-12-14 23:55:33 +0100
commit239007b8440abff689632f50cdf0f2b9e895b534 (patch)
tree569cab843af4a999d6d868ec9a824530d2bfa733 /kernel/irq/autoprobe.c
parent9f5a5621e78cf48d86682a71ceb3fcdbde38b222 (diff)
downloadlinux-2.6.34-ux500-239007b8440abff689632f50cdf0f2b9e895b534.tar.gz
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 'kernel/irq/autoprobe.c')
-rw-r--r--kernel/irq/autoprobe.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/kernel/irq/autoprobe.c b/kernel/irq/autoprobe.c
index 1de9700f416..2295a31ef11 100644
--- a/kernel/irq/autoprobe.c
+++ b/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);