lkml.org 
[lkml]   [2005]   [Dec]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
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.
>>>
>>>
>>>
>
>
>
>

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-12-14 07:45    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site