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SubjectRe: [spi-devel-general] [patch 2.6.15-rc5-mm2] SPI, priority inversion tweak
Okay, sorry, I've misundastood that.

Vitaly

David Brownell wrote:

>On Tuesday 13 December 2005 1:49 pm, Vitaly Wool wrote:
>
>
>>So you're turning this to be unsafe if the buffer is in use, right? Funny...
>>
>>
>
>I have no idea what you mean by that comment. The parameters to that
>function have always been documented as "will copy", and the two branches
>(busy/not) differ only in _which_ buffer they use from the heap (the
>fast pre-allocated one, or a freshly allocated scratch buffer). Heap
>buffers are by definition DMA-safe.
>
>- Dave
>
>
>
>
>>David Brownell wrote:
>>
>>
>>
>>>This is an updated version of the patch from Mark Underwood, handling
>>>the no-memory case better and using SLAB_KERNEL not SLAB_ATOMIC.
>>>
>>>
>>>
>
>
>
>

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