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Date: Wed, 20 Jan 2010 13:51:16 -0600 (CST)
From: Christoph Lameter <cl@linux-foundation.org>
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To: Yinghai Lu <yinghai@kernel.org>
cc: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
       "H. Peter Anvin" <hpa@zytor.com>,
       Andrew Morton <akpm@linux-foundation.org>,
       Jesse Barnes <jbarnes@virtuousgeek.org>, linux-kernel@vger.kernel.org,
       linux-pci@vger.kernel.org
Subject: Re: [PATCH 01/37] x86: move range related operation to one file
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On Wed, 20 Jan 2010, Yinghai Lu wrote:

> > Subtract range can now do what update_range did? How so?
>
> update_range was introduced at first. and actually it did sth like subtract range.
>
> and subtract range is more accurate.

Subtract range suggest that you may be removing the range.

subtract_from_range?