linux-kernel - Re: 2.6.21-mm1

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Message-ID: <20070506205732.GC10396@uranus.ravnborg.org>
Date:	Sun, 6 May 2007 22:57:32 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	Valdis.Kletnieks@...edu
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.21-mm1

On Sun, May 06, 2007 at 02:49:49AM -0400, Valdis.Kletnieks@...edu wrote:
> On Sat, 05 May 2007 01:49:55 PDT, Andrew Morton said:
> > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21/2.6.21-mm1/
> 
>   MODPOST vmlinux
> WARNING: mm/built-in.o - Section mismatch: reference to .init.text: from .text between 'kmem_cache_create' (at offset 0x20dff) and 'cache_reap'
> WARNING: mm/built-in.o - Section mismatch: reference to .init.text: from .text between 'kmem_cache_create' (at offset 0x20e41) and 'cache_reap'
> 
> Built with CONFIG_SLAB, CONFIG_SMP, x86_64.

It comes from this code (mm/slab.c):
/*
 * For setting up all the kmem_list3s for cache whose buffer_size is same as
 * size of kmem_list3.
 */
static void __init set_up_list3s(struct kmem_cache *cachep, int index)
{
	int node;

	for_each_online_node(node) {
		cachep->nodelists[node] = &initkmem_list3[index + node];
		cachep->nodelists[node]->next_reap = jiffies +
		    REAPTIMEOUT_LIST3 +
		    ((unsigned long)cachep) % REAPTIMEOUT_LIST3;
	}
}

It is supposed to be used only during early init and thus marked __init.
And initkmem_list3 is marked __initdata so that matches.

But set_up_list3s() is used outside __init marked functions and thus result in an error.

I do not know how to fix this.

	Sam
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