Messages in this thread | | | Date | Thu, 14 Nov 2002 13:31:21 -0800 | Subject | Re: [patch] remove hugetlb syscalls | From | (David Mosberger-Tang) |
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>>>>> 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).
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