Re: [Xen-devel] using PageForeign for pte allocation vs. shortcutting __pte_free_tlb()

["Jan Beulich" <jbeulich@xxxxxxxxxx>]

>>> Gerd Hoffmann <kraxel@xxxxxxx> 09.01.07 11:51 >>>
>Jan Beulich wrote:
>> In the course of trying to get CONFIG_HIGHPTE to work I stumbled across this
>> inconsistency between i386 and x86-64 Linux: i386 uses SetPageForeign() in
>> (one the non-highpte) case of pte_alloc_one(), and leaves intact native's
>> definition of __pte_free_tlb(), whereas x86-64 doesn't use the former but
>> shortcuts the latter to just invoke pte_free(). Obviously it would be nice 
>> for
>> these two to be consistent,
>
>x86-64 has no HIGHMEM zone, thus CONFIG_HIGHPTE has no effect (I'm
>surprised it exists in the first place ...).

Of course (and no, such a config option doesn't exist for x86-64), but what
relation does this have to the question asked?

Jan

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