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From: "Seth, Rohit" <rohit.seth@intel.com>
To: "'William Lee Irwin III'" <wli@holomorphy.com>,
       Rohit Seth <rseth@unix-os.sc.intel.com>
Cc: Benjamin LaHaise <bcrl@redhat.com>, "Seth, Rohit" <rohit.seth@intel.com>,
       dada1 <dada1@cosmosbay.com>, Christoph Hellwig <hch@infradead.org>,
       Rik van Riel <riel@conectiva.com.br>, Andrew Morton <akpm@digeo.com>,
       linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: RE: [patch] remove hugetlb syscalls
Date: Thu, 14 Nov 2002 14:12:06 -0800
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> -----Original Message-----
> From: William Lee Irwin III [mailto:wli@holomorphy.com] 
> > 
> On Thu, Nov 14, 2002 at 12:11:32PM -0800, Rohit Seth wrote:
> > This is not the problem with MAP_SHARED.  It is the lack of  (arch
> > specific) hugepage aligned function support in the kernel. 
> You can use 
> > the mmap on hugetlbfs using only MAP_FIXED with properly aligned 
> > addresses (but then this also is only a hint to kernel).  
> With addr == 
> > NULL in mmap, the function is bound to fail almost all the times.
> 
> There's very little standing in the way of automatic 
> placement. If in your opinion it should be implemented, I'll 
> add that feature today.
> 
mmap with addr==NULL is in my opinion a very useful thing.

> IIRC you mentioned you would like to export the arch-specific 
> hugepage-aligned vma placement functions; once these are 
> available, it should be trivial to reuse them.
> 
> 
I will export those functions from arch specific trees.
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