Re: [PATCH 3/4] mm: move_page_tables{,_up}

Peter Zijlstra
2007-06-06T19:12:50Z

On Wed, 2007-06-06 at 12:06 -0700, Ollie Wild wrote:
> On 6/5/07, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> > Provide functions for moving page tables upwards.
>
> Now that we're initializing the temporary stack location to
> STACK_TOP_MAX, do we still need move_page_tables_up() for variable
> length argument support? I originally added it into shift_arg_pages()
> to support 32-bit apps exec'ing 64-bit apps when we were using
> TASK_SIZE as our temporary location.
>
> Maybe we should decouple this patch from the others and submit it as
> an enhancement to support memory defragmentation.

PA-RISC will still need it, right?

On the defrag thingy, I talked with Mel today, and neither of us can see
a usefull application of these functions to his defrag work.