On Fri, 2013-07-12 at 10:13 +0800, tiejun.chen wrote:
> > #define hard_irq_disable() do { \
> > u8 _was_enabled = get_paca()->soft_enabled; \
>
> Current problem I met is issued from the above line.
>
> > __hard_irq_disable(); \
> > - get_paca()->soft_enabled = 0; \
>
> Not here.
>
> If I'm misunderstanding what you guys means, please correct me since this is a
> long discussion thread. I have to reread that carefully.
Then make it
u8 _was_enabled;
__hard_irq_disable();
was_enabled = local_paca->....
Once you have hard disabled, using local_paca directly *should* be safe
(minus that gcc problem I mentioned).
Cheers,
Ben.
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