Re: hugepage patches

[Andrew Morton <akpm@digeo.com>]

William Lee Irwin III <wli@holomorphy.com> wrote:
>
> On Sun, Feb 02, 2003 at 02:55:46AM -0800, Andrew Morton wrote:
> > 6/4
> > hugetlbfs: fix truncate
> > - Opening a hugetlbfs file O_TRUNC calls the generic vmtruncate() functions
> >   and nukes the kernel.
> >   Give S_ISREG hugetlbfs files a inode_operations, and hence a setattr
> >   which know how to handle these files.
> > - Don't permit the user to truncate hugetlbfs files to sizes which are not
> >   a multiple of HPAGE_SIZE.
> > - We don't support expanding in ftruncate(), so remove that code.
> 
> erm, IIRC ftruncate() was the only way to expand the things;

Expanding ftruncate would be nice, but the current way of performing
the page instantiation at mmap() time seems sufficient.
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