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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-03-02 16:13:32 +0100
committerIngo Molnar <mingo@elte.hu>2009-03-03 00:05:45 +0100
commit044d408409cc4e1bc75c886e27ca85c270db104c (patch)
treec2286707e9d4983a4828b0a4133181031de36964 /kernel/irq
parentc02368a9d059322f913a58111eade87a656fefd5 (diff)
downloadop-kernel-dev-044d408409cc4e1bc75c886e27ca85c270db104c.zip
op-kernel-dev-044d408409cc4e1bc75c886e27ca85c270db104c.tar.gz
genirq: assert that irq handlers are indeed running in hardirq context
Make sure the genirq layer handlers are indeed running handlers in hardirq context. That is the genirq expectation and doing anything else is broken. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <1236006812.5330.632.camel@laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/irq')
-rw-r--r--kernel/irq/handle.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 3aba8d1..a2ee682 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -328,6 +328,8 @@ irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action)
irqreturn_t ret, retval = IRQ_NONE;
unsigned int status = 0;
+ WARN_ONCE(!in_irq(), "BUG: IRQ handler called from non-hardirq context!");
+
if (!(action->flags & IRQF_DISABLED))
local_irq_enable_in_hardirq();
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