From: davidm@mostang.com (David Mosberger-Tang)
To: William Lee Irwin III <wli@holomorphy.com>
Cc: David Mosberger-Tang <David.Mosberger@acm.org>,
linux-kernel@vger.kernel.org
Subject: Re: [patch] remove hugetlb syscalls
Date: Thu, 14 Nov 2002 13:31:21 -0800 [thread overview]
Message-ID: <15828.5673.94643.36160@panda.mostang.com> (raw)
In-Reply-To: <20021114203411.GG22031@holomorphy.com>
>>>>> On Thu, 14 Nov 2002 12:34:11 -0800, William Lee Irwin III <wli@holomorphy.com> 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
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
next prev parent reply other threads:[~2002-11-14 21:24 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-13 23:45 [patch] remove hugetlb syscalls Benjamin LaHaise
2002-11-14 0:42 ` Rik van Riel
2002-11-14 8:52 ` dada1
2002-11-14 14:13 ` Christoph Hellwig
[not found] ` <ugel9oa vk4.fsf@panda.mostang.com>
2002-11-14 15:13 ` dada1
2002-11-14 15:31 ` Benjamin LaHaise
2002-11-14 15:38 ` dada1
2002-11-14 20:11 ` Rohit Seth
2002-11-14 20:36 ` William Lee Irwin III
[not found] ` <3DD3FED2.2010901@unix-os.sc.intel.com>
2002-11-14 20:01 ` Benjamin LaHaise
2002-11-14 21:06 ` Benjamin LaHaise
2002-11-14 17:51 ` David Mosberger-Tang
2002-11-14 18:31 ` Alan Cox
2002-11-14 18:53 ` David Mosberger-Tang
2002-11-14 19:52 ` Alan Cox
2002-11-14 20:14 ` Alan Cox
2002-11-16 18:23 ` Jan Niehusmann
2002-11-14 20:34 ` William Lee Irwin III
2002-11-14 21:31 ` David Mosberger-Tang [this message]
2002-11-14 21:38 ` William Lee Irwin III
2002-11-14 21:46 ` David Mosberger-Tang
2002-11-14 19:28 ` Jeff Garzik
2002-11-14 20:15 ` Alan Cox
2002-11-16 18:00 ` Rik van Riel
2002-11-16 18:15 ` Linus Torvalds
2002-11-14 20:30 ` William Lee Irwin III
2002-11-14 20:48 ` Benjamin LaHaise
2002-11-14 21:02 ` William Lee Irwin III
2002-11-14 21:11 ` Benjamin LaHaise
2002-11-14 21:31 ` William Lee Irwin III
2002-11-14 21:40 ` Rohit Seth
2002-11-14 21:59 ` Benjamin LaHaise
2002-11-14 21:06 ` Benjamin LaHaise
2002-11-14 21:06 ` Benjamin LaHaise
-- strict thread matches above, loose matches on Subject: below --
2002-11-14 22:12 Seth, Rohit
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