Re: [PATCH 6/9 UPDATED] percpu: enforce global definition

Steven Rostedt
2009-06-18T13:37:32Z

On Thu, 2009-06-18 at 16:38 +0900, Tejun Heo wrote:
> Some archs (alpha and s390) need to add 'weak' attribute to percpu
> variable definitions so that the compiler generates external
> references for them. To allow this, enforce global definition of all
> percpu variables.
>
> This patch makes DEFINE_PER_CPU_SECTION() do DECLARE_PERCPU_SECTION()
> implicitly and drop static from all percpu definitions.
>
> [ Impact: all percpu variables are forced to be global ]
>
> Signed-off-by: Tejun Heo <tj@kernel.org>
> Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

Uh, wont this cause name space collisions?

-- Steve