linux-kernel - Re: [PATCH] mm: make free_bootmem to loop bdata

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Message-Id: <20080314103953.70be95b1.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Fri, 14 Mar 2008 10:39:53 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	"Yinghai Lu" <yhlu.kernel@...il.com>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>, mingo@...e.hu,
	clameter@....com, linux-kernel@...r.kernel.org,
	"Andi Kleen" <ak@...e.de>, "Yasunori Goto" <y-goto@...fujitsu.com>
Subject: Re: [PATCH] mm: make free_bootmem to loop bdata_list

On Thu, 13 Mar 2008 11:53:31 -0700
"Yinghai Lu" <yhlu.kernel@...il.com> wrote:
> ===================================================================
> --- linux-2.6.orig/mm/bootmem.c
> +++ linux-2.6/mm/bootmem.c
> @@ -427,7 +438,9 @@ int __init reserve_bootmem(unsigned long
>  
>  void __init free_bootmem(unsigned long addr, unsigned long size)
>  {
> -	free_bootmem_core(NODE_DATA(0)->bdata, addr, size);
> +	bootmem_data_t *bdata;
> +	list_for_each_entry(bdata, &bdata_list, list)
> +		free_bootmem_core(bdata, addr, size);
>  }


Just a confirmation.
In above loop, boundary check in free_bootmem_core() hits two or more times ?
If yes, it's ok.
If no, please exit loop at hit.

Thanks,
-Kame
 

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