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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-15 19:23:40 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-15 19:23:40 -0700
commit5f6fb45466b2273ffb91c9cf209f164f666c33b1 (patch)
tree2b19f24b678ae379be1b19338c3095c1f76ed41d /kernel/irq/migration.c
parent3904afb41d4316f7a2968c615d689e19149a4f84 (diff)
parentc0185808eb85139f45dbfd0de66963c498d0c4db (diff)
downloadlwn-5f6fb45466b2273ffb91c9cf209f164f666c33b1.tar.gz
lwn-5f6fb45466b2273ffb91c9cf209f164f666c33b1.zip
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (116 commits) x86: Enable forced interrupt threading support x86: Mark low level interrupts IRQF_NO_THREAD x86: Use generic show_interrupts x86: ioapic: Avoid redundant lookup of irq_cfg x86: ioapic: Use new move_irq functions x86: Use the proper accessors in fixup_irqs() x86: ioapic: Use irq_data->state x86: ioapic: Simplify irq chip and handler setup x86: Cleanup the genirq name space genirq: Add chip flag to force mask on suspend genirq: Add desc->irq_data accessor genirq: Add comments to Kconfig switches genirq: Fixup fasteoi handler for oneshot mode genirq: Provide forced interrupt threading sched: Switch wait_task_inactive to schedule_hrtimeout() genirq: Add IRQF_NO_THREAD genirq: Allow shared oneshot interrupts genirq: Prepare the handling of shared oneshot interrupts genirq: Make warning in handle_percpu_event useful x86: ioapic: Move trigger defines to io_apic.h ... Fix up trivial(?) conflicts in arch/x86/pci/xen.c due to genirq name space changes clashing with the Xen cleanups. The set_irq_msi() had moved to xen_bind_pirq_msi_to_irq().
Diffstat (limited to 'kernel/irq/migration.c')
-rw-r--r--kernel/irq/migration.c38
1 files changed, 24 insertions, 14 deletions
diff --git a/kernel/irq/migration.c b/kernel/irq/migration.c
index 441fd629ff04..ec4806d4778b 100644
--- a/kernel/irq/migration.c
+++ b/kernel/irq/migration.c
@@ -4,23 +4,23 @@
#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(!(desc->status & IRQ_MOVE_PENDING)))
+ if (likely(!irqd_is_setaffinity_pending(&desc->irq_data)))
return;
/*
* Paranoia: cpu-local interrupts shouldn't be calling in here anyway.
*/
- if (CHECK_IRQ_PER_CPU(desc->status)) {
+ if (!irqd_can_balance(&desc->irq_data)) {
WARN_ON(1);
return;
}
- desc->status &= ~IRQ_MOVE_PENDING;
+ irqd_clr_move_pending(&desc->irq_data);
if (unlikely(cpumask_empty(desc->pending_mask)))
return;
@@ -53,15 +53,20 @@ 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(!(desc->status & IRQ_MOVE_PENDING)))
+ if (likely(!irqd_is_setaffinity_pending(idata)))
return;
- if (unlikely(desc->status & IRQ_DISABLED))
+ if (unlikely(desc->istate & IRQS_DISABLED))
return;
/*
@@ -69,10 +74,15 @@ void move_native_irq(int irq)
* threaded interrupt with ONESHOT set, we can end up with an
* interrupt storm.
*/
- masked = desc->status & IRQ_MASKED;
+ 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));
}