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genirq: assert that irq handlers are indeed running in hardirq context

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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>
This commit is contained in:
Peter Zijlstra 2009-03-02 16:13:32 +01:00 committed by Ingo Molnar
parent c02368a9d0
commit 044d408409
1 changed files with 2 additions and 0 deletions
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kernel/irq/handle.c
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@ -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();