Re: [PATCH 0/2] FLATMEM: allow memory to start at pfn != 0 [take #2]

["Franck Bui-Huu" <vagabon.xyz@gmail.com>]

Hi,

On 3/10/07, peter fuerst <post@pfrst.de> wrote:
> 3) The page_offset adjustment may force fixes in other, not yet blown up,
>    places (pmd_phys() cried out lately...).
Not really fair. It crashed lately because until now I was the only
one to use it. And unfortunately I failed to give back this change to
Ralf's tree.

BUT, note that the root cause of this bug is that we did _plain_
address translation instead of using dedicated macro.

So I would say that this patch helps to fix these buggy places.

> What can PHYS_OFFSET achieve here - besides obfuscating ?
> Are there future uses for it, that justify the contortions ?
How do you deal with fancy cases such as physical memory starting at
0x20000000 for example ?

--
              Franck