Jiang,
On Mon, 18 May 2015, Jiang Liu wrote:
> Hi Thomas,
> When refining irq related data structures, I found once we had
> a plan to move include/linux/irqdesc.h into kernel/irq/, and I have
I had that plan for two reasons:
1) Is was tired of chasing the abuse of irq_desc
2) We wanted to move irq descriptor memory allocation when
affinity changes to a different node.
> basic ideas about how to achieve the goal as:
> 1) de-inline accessor functions in irqdesc.h and move the declaration
> into linux/irq.h.
> 2) remove reference to irq_desc->xxxx from drivers one by one (this
> step is simple)
Not sure. drivers/irqchip pretty much needs it and we have other
demeltiplex handlers which need it as well.
> 3) remove reference to irq_desc->xxxx from arch (this step is hard)
Same issue as #2
> 4) move irqdesc.h into kernel/irq/
>
> But are we still willing to pay the cost of converting inline access
> helpers into normal functions?
I dont think so.
Thanks,
tglx
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