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Date: Thu, 13 Apr 2006 17:13:31 -0700
From: Andrew Morton <akpm@osdl.org>
To: Christoph Lameter <clameter@sgi.com>
Cc: hugh@veritas.com, linux-kernel@vger.kernel.org, lee.schermerhorn@hp.com,
       linux-mm@kvack.org, clameter@sgi.com, taka@valinux.co.jp,
       marcelo.tosatti@cyclades.com, kamezawa.hiroyu@jp.fujitsu.com
Subject: Re: [PATCH 2/5] Swapless V2: Add migration swap entries
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Christoph Lameter <clameter@sgi.com> wrote:
>
> +
>  +	if (unlikely(is_migration_entry(entry))) {

Perhaps put the unlikely() in is_migration_entry()?

>  +		yield();

Please, no yielding.

_especially_ no unchangelogged, uncommented yielding.

>  +		goto out;
>  +	}
>  +