Re: [patch] hugetlb: allow extending ftruncate on hugetlbfs

William Lee Irwin III
2007-08-02T13:05:50Z

On Wed, Aug 01, 2007 at 04:36:15PM -0700, Ken Chen wrote:
> For historical reason, expanding ftruncate that increases file size on
> hugetlbfs is not allowed due to pages were pre-faulted and lack of
> fault handler. Now that we have demand faulting on hugetlb since
> 2.6.15, there is no reason to hold back that limitation.
> This will make hugetlbfs behave more like a normal fs. I'm writing a
> user level code that uses hugetlbfs but will fall back to tmpfs if
> there are no hugetlb page available in the system. Having hugetlbfs
> specific ftruncate behavior is a bit quirky and I would like to remove
> that artificial limitation.
> Signed-off-by: <kenchen@google.com>

Excellent, thank you.

Acked-by: Wiliam Irwin <wli@holomorphy.com>

-- wli

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