From: Andrew Morton <akpm@linux-foundation.org>
To: Mel Gorman <mel@csn.ul.ie>
Cc: Petr Holasek <pholasek@redhat.com>,
linux-kernel@vger.kernel.org, Andi Kleen <ak@linux.intel.com>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
Wu Fengguang <fengguang.wu@intel.com>,
linux-mm@kvack.org
Subject: Re: [PATCH] hugetlbfs: correct handling of negative input to /proc/sys/vm/nr_hugepages
Date: Wed, 23 Feb 2011 16:18:18 -0800 [thread overview]
Message-ID: <20110223161818.9876cc10.akpm@linux-foundation.org> (raw)
In-Reply-To: <20110222100235.GA15652@csn.ul.ie>
On Tue, 22 Feb 2011 10:02:36 +0000
Mel Gorman <mel@csn.ul.ie> wrote:
> On Mon, Feb 21, 2011 at 04:47:49PM +0100, 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).
>
> I bet you a shiny penny that the value of HugePages becomes the maximum
> number that could be allocated by the system at the time rather than a
> random value.
That seems to be the case from my reading. In which case the patch
removes probably-undocumented and possibly-useful existing behavior.
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next prev parent reply other threads:[~2011-02-24 0:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-21 15:47 [PATCH] hugetlbfs: correct handling of negative input to /proc/sys/vm/nr_hugepages Petr Holasek
2011-02-22 0:30 ` Naoya Horiguchi
2011-02-22 10:02 ` Mel Gorman
2011-02-24 0:18 ` Andrew Morton [this message]
2011-02-24 9:49 ` Mel Gorman
2011-02-24 18:20 ` Eric B Munson
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