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Date: Thu, 14 Nov 2002 13:38:22 -0800
From: William Lee Irwin III <wli@holomorphy.com>
To: David.Mosberger@acm.org
Cc: linux-kernel@vger.kernel.org
Subject: Re: [patch] remove hugetlb syscalls
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On Thu, 14 Nov 2002 12:34:11 -0800, William Lee Irwin III said:
William> (3) ->f_op->mmap() will hand -EINVAL back to userspace
William> instead of automatically placing the vma, for explicit and
William> 0 start adresses

On Thu, Nov 14, 2002 at 01:31:21PM -0800, David Mosberger-Tang wrote:
> This sounds like a receipe for creating unportable programs because
> the alignment constraints will be different from one platform to
> another.  (Adding gethugepagesize() in libc would alleviate the
> problem but it wouldn't solve it completely.)
> Overall, it does sound to me that the hugetlbfs is so specialized that
> it would be much cleaner to provide a separate interface at the
> user-level.  That would leave more flexibility should the
> implementation change over time (which it well might).
> 	--david

Okay, that's a serious problem. But it's easy to fix; I'll just call
the hugepage vma placement functions that are also used by the syscalls.


Bill
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