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Date: Fri, 21 Feb 2014 23:36:16 +0100
From: Andi Kleen <andi@firstfloor.org>
To: David Rientjes <rientjes@google.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
        Luiz Capitulino <lcapitulino@redhat.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Mel Gorman <mgorman@suse.de>, Andrea Arcangeli <aarcange@redhat.com>,
        Andi Kleen <andi@firstfloor.org>, Rik van Riel <riel@redhat.com>,
        davidlohr@hp.com, isimatu.yasuaki@jp.fujitsu.com, yinghai@kernel.org,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 4/4] hugetlb: add hugepages_node= command-line option
Message-ID: <20140221223616.GG22728@two.firstfloor.org>
References: <20140218123013.GA20609@amt.cnet>
 <alpine.DEB.2.02.1402181407510.20772@chino.kir.corp.google.com>
 <20140220022254.GA25898@amt.cnet>
 <alpine.DEB.2.02.1402191941330.29913@chino.kir.corp.google.com>
 <20140220213407.GA11048@amt.cnet>
 <alpine.DEB.2.02.1402201502580.30647@chino.kir.corp.google.com>
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 <alpine.DEB.2.02.1402210158400.17851@chino.kir.corp.google.com>
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> > 2) it improves the kernel command line interface from incomplete
> > (lacking the ability to specify node<->page correlation), to 
> > a complete interface.
> > 
> 
> If GB hugepages can be allocated dynamically, I really think we should be 
> able to remove hugepagesz= entirely for x86 after a few years of 
> supporting it for backwards compatibility, even though Linus has insisted 

That doesn't make any sense. Why break a perfectly fine interface?

-Andi

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