>>> Jeremy Fitzhardinge <jer...@goop.org> 02.10.09 20:42 >>>
>On 10/02/09 10:23, Boris Derzhavets wrote:
>> Jeremy,
>> Please, be aware of bugzilla.xensource.com [1519] the most recent
>> entries :-
>>
>> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1519
>>
>
>Ah, OK. I pushed a variant of Konrad's patches. Could you try them out?
Are you really convinced fixing this in DRM is the right thing to do? To
me, the use of vmalloc_32() in drivers/ieee1394/ seems to make similar
assumptions (pci_map_sg() not modifying the buffer addresses), and
who knows where else such assumptions exist. After all, vmalloc_32()
is *defined* to have the property assumed by both of the users, and
other than for most kmalloc() cases using GFP_DMA{,32} we're talking
about double buffering generally large amounts of data here even in
the cases where the DMA API is being used properly.
Jan
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