Re: per-cpu data...

[Rusty Russell <rusty@rustcorp.com.au>]

In message <20020724133128.A7192@kushida.apsleyroad.org> you write:
> Rusty Russell wrote:
> > (From my reading, ## on "int x" and "__per_cpu" is well-defined).
> 
>   DECLARE_PER_CPU (int x[3]);
> 
> doesn't work, although you can always do
> 
>   typedef int three_ints_t[3];
>   DECLARE_PER_CPU (three_ints_t x);
> 
> I encountered the same thing while doing a user-space
> `MAKE_THREAD_SPECIFIC' macro.  The solution I went for looks like this:
> 
>   #define DECLARE_PER_CPU(type, name) \
>     __attribute__ ((__section (".percpu"))) __typeof__ (type) name##__per_cpu

Hmmm.... Yeah, might as well go the whole way.

Thanks!
Rusty.
--
  Anyone who quotes me in their sig is an idiot. -- Rusty Russell.