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authorJames Morris <james.l.morris@oracle.com>2014-06-24 18:46:07 +1000
committerJames Morris <james.l.morris@oracle.com>2014-06-24 18:46:07 +1000
commitf01387d2693813eb5271a3448e6a082322c7d75d (patch)
treeb591ca73c85276bae53d7db57ff1565be45a29da /kernel/irq/irqdesc.c
parent92953ff38ba59b4f7b1a54ab28b84be35fafaecc (diff)
parent1860e379875dfe7271c649058aeddffe5afd9d0d (diff)
Merge commit 'v3.15' into next
Diffstat (limited to 'kernel/irq/irqdesc.c')
-rw-r--r--kernel/irq/irqdesc.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 8ab8e9390297..bb07f2928f4b 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -363,6 +363,13 @@ __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node,
if (from > irq)
return -EINVAL;
from = irq;
+ } else {
+ /*
+ * For interrupts which are freely allocated the
+ * architecture can force a lower bound to the @from
+ * argument. x86 uses this to exclude the GSI space.
+ */
+ from = arch_dynirq_lower_bound(from);
}
mutex_lock(&sparse_irq_lock);
@@ -489,6 +496,11 @@ void dynamic_irq_cleanup(unsigned int irq)
raw_spin_unlock_irqrestore(&desc->lock, flags);
}
+void kstat_incr_irq_this_cpu(unsigned int irq)
+{
+ kstat_incr_irqs_this_cpu(irq, irq_to_desc(irq));
+}
+
unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
{
struct irq_desc *desc = irq_to_desc(irq);