Re: [RFC][PATCH] hugetlbfs read support

Christoph Lameter
2007-07-10T18:53:08Z

On Tue, 10 Jul 2007, Bill Irwin wrote:

> On Mon, Jul 09, 2007 at 12:28:11PM -0700, Badari Pulavarty wrote:
> > Support for reading from hugetlbfs files. libhugetlbfs lets application
> > text/data to be placed in large pages. When we do that, oprofile doesn't
> > work - since it tries to read from it.
> > This code is very similar to what do_generic_mapping_read() does, but
> > I can't use it since it has PAGE_CACHE_SIZE assumptions. Christoph
> > Lamater's cleanup to pagecache would hopefully give me all of this.
> > Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
>
> What's the testing status of all this? I thoroughly approve of the
> concept, of course.

The status is that Andrew has doubts about the antifrag approach etc
which will stall all of this if the antifrag does not get merged. See
the mm-merge discussion on lkml. Please make noise. Andrew asked for it.