Re: [PATCH 3/7] Generic Virtual Memmap support for SPARSEMEM

KAMEZAWA Hiroyuki
2007-07-13T14:51:21Z

On Fri, 13 Jul 2007 14:36:08 +0100
Andy Whitcroft <apw@shadowen.org> wrote:

> SPARSEMEM is a pretty nice framework that unifies quite a bit of
> code over all the arches. It would be great if it could be the
> default so that we can get rid of various forms of DISCONTIG and
> other variations on memory maps. So far what has hindered this are
> the additional lookups that SPARSEMEM introduces for virt_to_page
> and page_address. This goes so far that the code to do this has to
> be kept in a separate function and cannot be used inline.
>
Maybe it will be our(my or Goto-san's) work to implement MEMORY_HOTADD support
for this. Could you add !MEMORY_HOTPLUG in Kconfig ? Then, we'll write
patch later.
Or..If you'll add memory hotplug support by yourself, It's great,

-Kame