linux-kernel - Re: [2.6 patch] slub.c:early_kmem_cache_node_alloc() shouldn't be _

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Date:	Tue, 10 Jul 2007 21:01:23 +0200
From:	Adrian Bunk <bunk@...sta.de>
To:	Christoph Lameter <clameter@....com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [2.6 patch] slub.c:early_kmem_cache_node_alloc() shouldn't be
	__init

On Tue, Jul 10, 2007 at 11:33:15AM -0700, Christoph Lameter wrote:
> On Tue, 10 Jul 2007, Adrian Bunk wrote:
> 
> > This patch fixes the following section mismatch:
> 
> Nack.
> 
> Can you remove the warning? early_kmem_cache_node_alloc is only used 
> during bootstrap. But it is called from a function that is also used 
> later.

The alternative is "noinline __init_refok" - the noinline is required 
because modern gcc versions already make it non-__init by inlining it 
into init_kmem_cache_nodes() without.

But I'm not convinced it's really worth manually forcing noinline only 
for moving a few bytes to __init in the CONFIG_NUMA=y case - in the  
long term this will only bit rot.

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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