linux-kernel - Re: [this_cpu_xx 01/11] Introduce this_cpu_ptr() and generic this_cpu

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Date:	Thu, 11 Jun 2009 11:10:32 -0400 (EDT)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Tejun Heo <tj@...nel.org>
cc:	linux-kernel@...r.kernel.org, David Howells <dhowells@...hat.com>,
	Ingo Molnar <mingo@...e.hu>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Eric Dumazet <dada1@...mosbay.com>, davem@...emloft.net
Subject: Re: [this_cpu_xx 01/11] Introduce this_cpu_ptr() and generic this_cpu_*
 operations

On Wed, 10 Jun 2009, Tejun Heo wrote:

> Looks good to me.  The only qualm I have is that I wish these macros
> take pointer instead of the symbol name directly.  Currently it's not

They take the adress of the scalar. No symbol name is involved.

> possible due to the per_cpu__ appending thing but those should go with
> Rusty's patches and the same ops should be useable for both static and
> dynamic ones.  One problem which may occur with such scheme is when

They are usable for both as the following patches show.
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