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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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