linux-kernel - Re: [PATCH v3 2/6] mm/memory_hotplug: remove memory_add_physaddr_to

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Date:	Sun, 26 May 2013 10:59:38 +0200
From:	Michal Hocko <mhocko@...e.cz>
To:	Wanpeng Li <liwanp@...ux.vnet.ibm.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	KOSAKI Motohiro <kosaki.motohiro@...il.com>,
	David Rientjes <rientjes@...gle.com>,
	Jiang Liu <jiang.liu@...wei.com>,
	Tang Chen <tangchen@...fujitsu.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org
Subject: Re: [PATCH v3 2/6] mm/memory_hotplug: remove
 memory_add_physaddr_to_nid

On Sun 26-05-13 13:58:37, Wanpeng Li wrote:
> memory_add_physaddr_to_nid is not used any more, this patch remove it.

git grep disagrees.
git grep "= *\<memory_add_physaddr_to_nid\>" mmotm
mmotm:drivers/acpi/acpi_memhotplug.c:                   node = memory_add_physaddr_to_nid(info->start_addr);
mmotm:drivers/acpi/acpi_memhotplug.c:                   nid = memory_add_physaddr_to_nid(info->start_addr);
mmotm:drivers/base/memory.c:            nid = memory_add_physaddr_to_nid(phys_addr);
mmotm:drivers/xen/balloon.c:    nid = memory_add_physaddr_to_nid(hotplug_start_paddr);

> 
> Signed-off-by: Wanpeng Li <liwanp@...ux.vnet.ibm.com>
> ---
>  arch/x86/mm/numa.c | 15 ---------------
>  1 file changed, 15 deletions(-)
> 
> diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
> index a71c4e2..d470a54 100644
> --- a/arch/x86/mm/numa.c
> +++ b/arch/x86/mm/numa.c
> @@ -803,18 +803,3 @@ const struct cpumask *cpumask_of_node(int node)
>  EXPORT_SYMBOL(cpumask_of_node);
>  
>  #endif	/* !CONFIG_DEBUG_PER_CPU_MAPS */
> -
> -#ifdef CONFIG_MEMORY_HOTPLUG
> -int memory_add_physaddr_to_nid(u64 start)
> -{
> -	struct numa_meminfo *mi = &numa_meminfo;
> -	int nid = mi->blk[0].nid;
> -	int i;
> -
> -	for (i = 0; i < mi->nr_blks; i++)
> -		if (mi->blk[i].start <= start && mi->blk[i].end > start)
> -			nid = mi->blk[i].nid;
> -	return nid;
> -}
> -EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
> -#endif
> -- 
> 1.8.1.2
> 

-- 
Michal Hocko
SUSE Labs
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