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authorLinus Torvalds <torvalds@linux-foundation.org>2008-11-30 13:06:20 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2008-11-30 13:06:20 -0800
commit72244c0e68dd664b894adb34a8772a6e4673b4c1 (patch)
tree5fa5bd9ff7b3d52f9b89898c0f12cfe163b72987 /arch
parent93b10052f9146eab4e848b474baf10c2ea22acb3 (diff)
parent2ed1cdcf9a83205d1343f29b630abff232eaa72c (diff)
Merge branch 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: irq.h: fix missing/extra kernel-doc genirq: __irq_set_trigger: change pr_warning to pr_debug irq: fix typo x86: apic honour irq affinity which was set in early boot genirq: fix the affinity setting in setup_irq genirq: keep affinities set from userspace across free/request_irq()
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/io_apic.c26
1 files changed, 21 insertions, 5 deletions
diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c
index 1fec0f9b1508..9043251210fb 100644
--- a/arch/x86/kernel/io_apic.c
+++ b/arch/x86/kernel/io_apic.c
@@ -3755,7 +3755,9 @@ int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity)
void __init setup_ioapic_dest(void)
{
int pin, ioapic, irq, irq_entry;
+ struct irq_desc *desc;
struct irq_cfg *cfg;
+ cpumask_t mask;
if (skip_ioapic_setup == 1)
return;
@@ -3772,16 +3774,30 @@ void __init setup_ioapic_dest(void)
* cpu is online.
*/
cfg = irq_cfg(irq);
- if (!cfg->vector)
+ if (!cfg->vector) {
setup_IO_APIC_irq(ioapic, pin, irq,
irq_trigger(irq_entry),
irq_polarity(irq_entry));
+ continue;
+
+ }
+
+ /*
+ * Honour affinities which have been set in early boot
+ */
+ desc = irq_to_desc(irq);
+ if (desc->status &
+ (IRQ_NO_BALANCING | IRQ_AFFINITY_SET))
+ mask = desc->affinity;
+ else
+ mask = TARGET_CPUS;
+
#ifdef CONFIG_INTR_REMAP
- else if (intr_remapping_enabled)
- set_ir_ioapic_affinity_irq(irq, TARGET_CPUS);
-#endif
+ if (intr_remapping_enabled)
+ set_ir_ioapic_affinity_irq(irq, mask);
else
- set_ioapic_affinity_irq(irq, TARGET_CPUS);
+#endif
+ set_ioapic_affinity_irq(irq, mask);
}
}