Commit-ID: a439520f8b18917b322f576be04c54aba84bb044
Gitweb: http://git.kernel.org/tip/a439520f8b18917b322f576be04c54aba84bb044
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Fri, 4 Feb 2011 18:46:16 +0100
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Sat, 19 Feb 2011 12:58:25 +0100
genirq: Implement irq_data based move_*_irq() versions
No need to lookup the irq descriptor when calling from a chip callback
function which has irq_data already handy.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
include/linux/irq.h | 4 ++++
kernel/irq/migration.c | 28 +++++++++++++++++++---------
2 files changed, 23 insertions(+), 9 deletions(-)
diff --git a/include/linux/irq.h b/include/linux/irq.h
index ea2970c..ff62d01 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -363,9 +363,13 @@ extern void remove_irq(unsigned int irq, struct irqaction *act);
#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_PENDING_IRQ)
void move_native_irq(int irq);
void move_masked_irq(int irq);
+void irq_move_irq(struct irq_data *data);
+void irq_move_masked_irq(struct irq_data *data);
#else
static inline void move_native_irq(int irq) { }
static inline void move_masked_irq(int irq) { }
+static inline void irq_move_irq(struct irq_data *data) { }
+static inline void irq_move_masked_irq(struct irq_data *data) { }
#endif
extern int no_irq_affinity;
diff --git a/kernel/irq/migration.c b/kernel/irq/migration.c
index 7a93c6b..ec4806d 100644
--- a/kernel/irq/migration.c
+++ b/kernel/irq/migration.c
@@ -4,10 +4,10 @@
#include "internals.h"
-void move_masked_irq(int irq)
+void irq_move_masked_irq(struct irq_data *idata)
{
- struct irq_desc *desc = irq_to_desc(irq);
- struct irq_chip *chip = desc->irq_data.chip;
+ struct irq_desc *desc = irq_data_to_desc(idata);
+ struct irq_chip *chip = idata->chip;
if (likely(!irqd_is_setaffinity_pending(&desc->irq_data)))
return;
@@ -53,12 +53,17 @@ void move_masked_irq(int irq)
cpumask_clear(desc->pending_mask);
}
-void move_native_irq(int irq)
+void move_masked_irq(int irq)
+{
+ irq_move_masked_irq(irq_get_irq_data(irq));
+}
+
+void irq_move_irq(struct irq_data *idata)
{
- struct irq_desc *desc = irq_to_desc(irq);
+ struct irq_desc *desc = irq_data_to_desc(idata);
bool masked;
- if (likely(!irqd_is_setaffinity_pending(&desc->irq_data)))
+ if (likely(!irqd_is_setaffinity_pending(idata)))
return;
if (unlikely(desc->istate & IRQS_DISABLED))
@@ -71,8 +76,13 @@ void move_native_irq(int irq)
*/
masked = desc->istate & IRQS_MASKED;
if (!masked)
- desc->irq_data.chip->irq_mask(&desc->irq_data);
- move_masked_irq(irq);
+ idata->chip->irq_mask(idata);
+ irq_move_masked_irq(idata);
if (!masked)
- desc->irq_data.chip->irq_unmask(&desc->irq_data);
+ idata->chip->irq_unmask(idata);
+}
+
+void move_native_irq(int irq)
+{
+ irq_move_irq(irq_get_irq_data(irq));
}
--
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