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locking, x86, iommu: Annotate irq_2_ir_lock as raw
The irq_2_ir_lock can be taken in atomic context and therefore cannot be preempted on -rt - annotate it. In mainline this change documents the low level nature of the lock - otherwise there's no functional difference. Lockdep and Sparse checking will work as usual. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Thomas Gleixner
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Ingo Molnar
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Sep 13, 2011
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