Re: [PATCH 0/7] [RFC] hugetlb: pagetable_operations API (V2)

From: William Lee Irwin III <wli@holomorphy.com>
To: Hugh Dickins <hugh@veritas.com>
Cc: Adam Litke <agl@us.ibm.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Arjan van de Ven <arjan@infradead.org>,
	Christoph Hellwig <hch@infradead.org>,
	Ken Chen <kenchen@google.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/7] [RFC] hugetlb: pagetable_operations API (V2)
Date: Wed, 21 Mar 2007 09:23:24 -0700	[thread overview]
Message-ID: <20070321162324.GH2986@holomorphy.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0703211549220.32077@blonde.wat.veritas.com>

On Mon, 19 Mar 2007, Adam Litke wrote:
>> Andrew, given the favorable review of these patches the last time
>> around, would you consider them for the -mm tree?  Does anyone else
>> have any objections?

On Wed, Mar 21, 2007 at 03:55:54PM +0000, Hugh Dickins wrote:
> I quite fail to understand the enthusiasm for these patches.  All they
> do is make the already ugly interfaces to hugetlb more obscure than at
> present, and open the door to even uglier stuff later.  Don't you need
> to wait for at least one other user of these interfaces to emerge,
> to get a better idea of whether they're appropriate?

The lack of an interface of this sort has essentially blocked the
development of some of them.

What sort of uglier stuff are you concerned about this enabling? My
wild guess is precisely the prospective users in my queue of features
to implement that I've neglected on account of the lack of such an
interface. It might be a good idea for me to take whatever distaste for
them exists into account before belting out the code for them.

-- wli

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