[RFC PATCH 1/3] genirq: add support for per-cpu dev_id interrupts
From: Michał Mirosław <hidden>
Date: 2011-09-15 21:36:45
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lkml
2011/9/15 Marc Zyngier [off-list ref]: [...]
quoted hunk ↗ jump to hunk
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index a103732..f9b7fa3 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h@@ -95,6 +95,7 @@ typedef irqreturn_t (*irq_handler_t)(int, void *);?* @flags: ? ? flags (see IRQF_* above) ?* @name: ? ? ?name of the device ?* @dev_id: ? ?cookie to identify the device + * @percpu_dev_id: ? ? cookie to identify the device ?* @next: ? ? ?pointer to the next irqaction for shared interrupts ?* @irq: ? ? ? interrupt number ?* @dir: ? ? ? pointer to the proc/irq/NN/name entry@@ -104,17 +105,20 @@ typedef irqreturn_t (*irq_handler_t)(int, void *);?* @thread_mask: ? ? ? bitmask for keeping track of @thread activity ?*/ ?struct irqaction {
[...]
+ ? ? ? void ? ? ? ? ? ? ? ? ? ?*dev_id; +#ifdef CONFIG_IRQ_PERCPU_DEVID + ? ? ? void __percpu ? ? ? ? ? *percpu_dev_id; +#endif
Those two can share the memory (in a anonymous union), if I read the idea correctly. Best Regards, Micha? Miros?aw