pte_offset_map for ppc assumes HIGHPTE
benh at kernel.crashing.org
Thu Jul 26 10:18:13 EST 2007
On Wed, 2007-07-25 at 18:30 -0500, Dave McCracken wrote:
> 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.
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