linux-kernel - Re: [PATCH v2] hugetlbfs: correct handling of negative input to /proc/sys/vm/nr

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Message-Id: <20110224141034.d2dfb7de.akpm@linux-foundation.org>
Date:	Thu, 24 Feb 2011 14:10:34 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Petr Holasek <pholasek@...hat.com>
Cc:	linux-kernel@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>,
	Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
	Mel Gorman <mel@....ul.ie>,
	Wu Fengguang <fengguang.wu@...el.com>, linux-mm@...ck.org
Subject: Re: [PATCH v2] hugetlbfs: correct handling of negative input to
 /proc/sys/vm/nr_hugepages

On Tue, 22 Feb 2011 21:17:04 +0100
Petr Holasek <pholasek@...hat.com> wrote:

> When user insert negative value into /proc/sys/vm/nr_hugepages it will 
> result
> in the setting a random number of HugePages in system

Is this true?  afacit the kernel will allocate as many pages as it can
and will then set /proc/sys/vm/nr_hugepages to reflect the result. 
That's not random.

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