linux-kernel - Re: [patch] rfc: introduce /dev/hugetlb

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Date:	Fri, 23 Mar 2007 15:04:33 -0700
From:	"Ken Chen" <kenchen@...gle.com>
To:	"William Lee Irwin III" <wli@...omorphy.com>
Cc:	"Mel Gorman" <mel@....ul.ie>, "Adam Litke" <agl@...ibm.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Arjan van de Ven" <arjan@...radead.org>,
	"Christoph Hellwig" <hch@...radead.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	"Benjamin Herrenschmidt" <benh@...nel.crashing.org>
Subject: Re: [patch] rfc: introduce /dev/hugetlb

On 3/23/07, William Lee Irwin III <wli@...omorphy.com> wrote:
> On Fri, 23 Mar 2007, William Lee Irwin III wrote:
> >> Lack of compiletesting beyond x86-64 in all probability.
>
> On Fri, Mar 23, 2007 at 03:15:55PM +0000, Mel Gorman wrote:
> > Ok, this will go kablamo on Power then even if it compiles. I don't
> > consider it a fundamental problem though. For the purposes of an RFC, it's
> > grand and something that can be worked with.
>
> He needs to un-#ifdef the prototype (which he already does), but he
> needs to leave the definition under #ifdef while removing the static
> qualifier. A relatively minor fixup.

Yes, sorry about that for lack of access to non-x86-64 machines.  I
needed to move the function prototype to hugetlb.h and evidently
removed the #ifdef by mistake.  I'm not going to touch this in my next
clean up patch, instead I will just declare char specific
file_operations struct in hugetlbfs and then have char device
reference it.

But nevertheless, hugetlb_get_unmapped_area function prototype  better
be in a header file somewhere.

- Ken
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