linux-kernel - Re: [patch 7/7] cpu alloc: page allocator conversion

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Date:	Thu,  6 Nov 2008 11:52:42 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Christoph Lameter <cl@...ux-foundation.org>
Cc:	kosaki.motohiro@...fujitsu.com, akpm@...ux-foundation.org,
	Pekka Enberg <penberg@...helsinki.fi>,
	Christoph Lameter <clameter@....com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org, travis@....com,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Vegard Nossum <vegard.nossum@...il.com>
Subject: Re: [patch 7/7] cpu alloc: page allocator conversion

> +#ifdef CONFIG_SMP
>  static int __cpuinit pageset_cpuup_callback(struct notifier_block *nfb,
>  		unsigned long action,
>  		void *hcpu)
> @@ -2800,14 +2746,7 @@
>  	switch (action) {
>  	case CPU_UP_PREPARE:
>  	case CPU_UP_PREPARE_FROZEN:
> -		if (process_zones(cpu))
> -			ret = NOTIFY_BAD;
> -		break;
> -	case CPU_UP_CANCELED:
> -	case CPU_UP_CANCELED_FROZEN:
> -	case CPU_DEAD:
> -	case CPU_DEAD_FROZEN:
> -		free_zone_pagesets(cpu);
> +		process_zones(cpu);
>  		break;

Why do you drop cpu unplug code?



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