Subject: Re: pte_offset_map for ppc assumes HIGHPTE

From: Dave McCracken <[email-masked]>
Date: Wed, 25 Jul 2007 18:30:21 -0500

On Wednesday 25 July 2007, Benjamin Herrenschmidt wrote:
> Depends... if you have CONFIG_HIGHMEM and not CONFIG_HIGHPTE, you are
> wasting time going through kmap_atomic unnecessarily no ? it will probably
> not do anything because the PTE page is in lowmem but still...

Probably not much time.  You still need to do the page to virtual translation, 
which kmap_atomic does for you.

Dave McCracken