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

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Message-ID: <alpine.DEB.2.00.1102221232370.5929@chino.kir.corp.google.com>
Date:	Tue, 22 Feb 2011 12:32:49 -0800 (PST)
From:	David Rientjes <rientjes@...gle.com>
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>,
	Andrew Morton <akpm@...ux-foundation.org>,
	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, Petr Holasek 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 (can be easily showed
> at /proc/meminfo output). This patch fixes the wrong behavior so that the
> negative input will result in nr_hugepages value unchanged.
> 
> v2: same fix was also done in hugetlb_overcommit_handler function
>     as suggested by reviewers.
> 
> Signed-off-by: Petr Holasek <pholasek@...hat.com>
> Reviewed-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>

Acked-by: David Rientjes <rientjes@...gle.com>
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