linux-kernel - linux-next: cpu_alloc tree patch (Was: Re: next-20081106: undefined reference to `__per_cpu

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Message-Id: <20081118153346.62bf9c11.sfr@canb.auug.org.au>
Date:	Tue, 18 Nov 2008 15:33:46 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Christoph Lameter <cl@...ux-foundation.org>
Cc:	Alexey Dobriyan <adobriyan@...il.com>, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org, rusty@...tcorp.com.au,
	Haavard Skinnemoen <hskinnemoen@...el.com>
Subject: linux-next: cpu_alloc tree patch (Was: Re: next-20081106: undefined
 reference to `__per_cpu_start')

Hi Christoph,

On Fri, 7 Nov 2008 12:40:17 -0600 (CST) Christoph Lameter <cl@...ux-foundation.org> wrote:
>
> All of these have no invocation of the PERCPU macro from
> asm-generic/vmlinus.lds.h in their arch vmlinux.lds.S. Thus the symbols
> are missing. They are kind of irrelevant since we are only interested in
> the difference between those...
> 
> Either we add the PERCPU() macro invocations to each arches vmlinux.lds.S
> file or we need to special case each time __per_cpu_end/__start is used.
> The only use added for the cpu allocator is in include/linux/percpu.h
> 
> Make it conditional on CONFIG_SMP
> 
> Signed-off-by: Christoph Lameter <cl@...ux-foundation.org>

I have applied this to linux-next today.  It is not clear to me if this
is a fix for the cpu_alloc tree or the zero-based per_cpu area patches or
a combination of both.  If the first, please apply this to the cpu_alloc
tree or I will have to drop the tree.  Otherwise, let me know where it
belongs.

Also, considering the "discussions" between Rusty and yourself, I may
need to drop the cpu_alloc tree until they are resolved.
-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
http://www.canb.auug.org.au/~sfr/

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